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--- /dev/null
+/** @file gio.c \r
+* @brief GIO Driver Inmplmentation File\r
+* @date 10.June.2010\r
+* @version 1.01.000\r
+*\r
+*/\r
+\r
+/* (c) Texas Instruments 2009-2010, All rights reserved. */\r
+\r
+\r
+#include "gio.h"\r
+\r
+\r
+/** @fn void gioInit(void)\r
+* @brief Initializes the GIO Driver\r
+*\r
+* This function initializes the GIO module and set the GIO ports \r
+* to the inital values.\r
+*/\r
+void gioInit(void)\r
+{\r
+ /** bring GIO module out of reset */\r
+ gioREG->GCR0 = 1;\r
+ gioREG->INTENACLR = 0xFF;\r
+ gioREG->LVLCLR = 0xFF; \r
+\r
+ /** @b initalise @b Port @b A */\r
+\r
+ /** - Port A output values */\r
+ gioPORTA->DOUT = 0 /* Bit 0 */\r
+ | (0 << 1) /* Bit 1 */\r
+ | (0 << 2) /* Bit 2 */\r
+ | (0 << 3) /* Bit 3 */\r
+ | (0 << 4) /* Bit 4 */\r
+ | (0 << 5) /* Bit 5 */\r
+ | (0 << 6) /* Bit 6 */\r
+ | (0 << 7); /* Bit 7 */\r
+\r
+ /** - Port A direction */\r
+ gioPORTA->DIR = 1 /* Bit 0 */\r
+ | (1 << 1) /* Bit 1 */\r
+ | (0 << 2) /* Bit 2 */\r
+ | (0 << 3) /* Bit 3 */\r
+ | (0 << 4) /* Bit 4 */\r
+ | (0 << 5) /* Bit 5 */\r
+ | (0 << 6) /* Bit 6 */\r
+ | (0 << 7); /* Bit 7 */\r
+\r
+ /** - Port A open drain enable */\r
+ gioPORTA->PDR = 0 /* Bit 0 */\r
+ | (0 << 1) /* Bit 1 */\r
+ | (0 << 2) /* Bit 2 */\r
+ | (0 << 3) /* Bit 3 */\r
+ | (0 << 4) /* Bit 4 */\r
+ | (0 << 5) /* Bit 5 */\r
+ | (0 << 6) /* Bit 6 */\r
+ | (0 << 7); /* Bit 7 */\r
+\r
+ /** - Port A pullup / pulldown selection */\r
+ gioPORTA->PSL = 0 /* Bit 0 */\r
+ | (0 << 1) /* Bit 1 */\r
+ | (0 << 2) /* Bit 2 */\r
+ | (0 << 3) /* Bit 3 */\r
+ | (0 << 4) /* Bit 4 */\r
+ | (0 << 5) /* Bit 5 */\r
+ | (0 << 6) /* Bit 6 */\r
+ | (0 << 7); /* Bit 7 */\r
+\r
+ /** - Port A pullup / pulldown enable*/\r
+ gioPORTA->PULDIS = 0 /* Bit 0 */\r
+ | (0 << 1) /* Bit 1 */\r
+ | (0 << 2) /* Bit 2 */\r
+ | (0 << 3) /* Bit 3 */\r
+ | (0 << 4) /* Bit 4 */\r
+ | (0 << 5) /* Bit 5 */\r
+ | (0 << 6) /* Bit 6 */\r
+ | (0 << 7); /* Bit 7 */\r
+\r
+ /** @b initalise @b Port @b B */\r
+\r
+ /** - Port B output values */\r
+ gioPORTB->DOUT = 0 /* Bit 0 */\r
+ | (0 << 1) /* Bit 1 */\r
+ | (0 << 2) /* Bit 2 */\r
+ | (0 << 3) /* Bit 3 */\r
+ | (0 << 4) /* Bit 4 */\r
+ | (0 << 5) /* Bit 5 */\r
+ | (0 << 6) /* Bit 6 */\r
+ | (0 << 7); /* Bit 7 */\r
+\r
+ /** - Port B direction */\r
+ gioPORTB->DIR = 0 /* Bit 0 */\r
+ | (0 << 1) /* Bit 1 */\r
+ | (0 << 2) /* Bit 2 */\r
+ | (0 << 3) /* Bit 3 */\r
+ | (0 << 4) /* Bit 4 */\r
+ | (0 << 5) /* Bit 5 */\r
+ | (0 << 6) /* Bit 6 */\r
+ | (0 << 7); /* Bit 7 */\r
+\r
+ /** - Port B open drain enable */\r
+ gioPORTB->PDR = 0 /* Bit 0 */\r
+ | (0 << 1) /* Bit 1 */\r
+ | (0 << 2) /* Bit 2 */\r
+ | (0 << 3) /* Bit 3 */\r
+ | (0 << 4) /* Bit 4 */\r
+ | (0 << 5) /* Bit 5 */\r
+ | (0 << 6) /* Bit 6 */\r
+ | (0 << 7); /* Bit 7 */\r
+\r
+ /** - Port B pullup / pulldown selection */\r
+ gioPORTB->PSL = 0 /* Bit 0 */\r
+ | (0 << 1) /* Bit 1 */\r
+ | (0 << 2) /* Bit 2 */\r
+ | (0 << 3) /* Bit 3 */\r
+ | (0 << 4) /* Bit 4 */\r
+ | (0 << 5) /* Bit 5 */\r
+ | (0 << 6) /* Bit 6 */\r
+ | (0 << 7); /* Bit 7 */\r
+\r
+ /** - Port B pullup / pulldown enable*/\r
+ gioPORTB->PULDIS = 0 /* Bit 0 */\r
+ | (0 << 1) /* Bit 1 */\r
+ | (0 << 2) /* Bit 2 */\r
+ | (0 << 3) /* Bit 3 */\r
+ | (0 << 4) /* Bit 4 */\r
+ | (0 << 5) /* Bit 5 */\r
+ | (0 << 6) /* Bit 6 */\r
+ | (0 << 7); /* Bit 7 */\r
+\r
+\r
+ /** @b initalise @b interrupts */\r
+\r
+ /** - interrupt polarity */\r
+ gioREG->POL = 0 /* Bit 0 */\r
+ | (0 << 1) /* Bit 1 */\r
+ | (0 << 2) /* Bit 2 */\r
+ | (0 << 3) /* Bit 3 */\r
+ | (0 << 4) /* Bit 4 */\r
+ | (0 << 5) /* Bit 5 */\r
+ | (0 << 6) /* Bit 6 */\r
+ | (0 << 7); /* Bit 7 */\r
+\r
+ /** - interrupt level */\r
+ gioREG->LVLSET = 0 /* Bit 0 */\r
+ | (0 << 1) /* Bit 1 */\r
+ | (0 << 2) /* Bit 2 */\r
+ | (0 << 3) /* Bit 3 */\r
+ | (0 << 4) /* Bit 4 */\r
+ | (0 << 5) /* Bit 5 */\r
+ | (0 << 6) /* Bit 6 */\r
+ | (0 << 7); /* Bit 7 */\r
+\r
+\r
+ /** - clear all pending interrupts */\r
+ gioREG->FLG = 0xFF;\r
+\r
+ /** - enable interrupts */\r
+ gioREG->INTENASET = 0 /* Bit 0 */\r
+ | (0 << 1) /* Bit 1 */\r
+ | (0 << 2) /* Bit 2 */\r
+ | (0 << 3) /* Bit 3 */\r
+ | (0 << 4) /* Bit 4 */\r
+ | (0 << 5) /* Bit 5 */\r
+ | (0 << 6) /* Bit 6 */\r
+ | (0 << 7); /* Bit 7 */\r
+}\r
+\r
+\r
+/** @fn void gioSetDirection(gioPORT_t *port, unsigned dir)\r
+* @brief Set Port Direction\r
+* @param[in] port pointer to GIO port:\r
+* - gioPORTA: PortA pointer\r
+* - gioPORTB: PortB pointer\r
+* @param[in] dir value to write to DIR register\r
+*\r
+* Set the direction of GIO pins at runtime.\r
+*/\r
+void gioSetDirection(gioPORT_t *port, unsigned dir)\r
+{\r
+ port->DIR = dir;\r
+}\r
+\r
+\r
+/** @fn void gioSetBit(gioPORT_t *port, unsigned bit, unsigned value)\r
+* @brief Write Bit\r
+* @param[in] port pointer to GIO port:\r
+* - gioPORTA: PortA pointer\r
+* - gioPORTB: PortB pointer\r
+* @param[in] bit number 0-7 that specifies the bit to be written to.\r
+* - 0: LSB\r
+* - 7: MSB\r
+* @param[in] value binrary value to write to bit\r
+*\r
+* Writes a value to the specified pin of the given GIO port\r
+*/\r
+void gioSetBit(gioPORT_t *port, unsigned bit, unsigned value)\r
+{\r
+ if (value)\r
+ {\r
+ port->DSET = 1 << bit;\r
+ }\r
+ else\r
+ {\r
+ port->DCLR = 1 << bit;\r
+ }\r
+}\r
+\r
+\r
+/** @fn void gioSetPort(gioPORT_t *port, unsigned value)\r
+* @brief Write Port Value\r
+* @param[in] port pointer to GIO port:\r
+* - gioPORTA: PortA pointer\r
+* - gioPORTB: PortB pointer\r
+* @param[in] value value to write to port\r
+*\r
+* Writes a value to all pin of a given GIO port\r
+*/\r
+void gioSetPort(gioPORT_t *port, unsigned value)\r
+{\r
+ port->DOUT = value;\r
+}\r
+\r
+\r
+/** @fn unsigned gioGetBit(gioPORT_t *port, unsigned bit)\r
+* @brief Read Bit\r
+* @param[in] port pointer to GIO port:\r
+* - gioPORTA: PortA pointer\r
+* - gioPORTB: PortB pointer\r
+* @param[in] bit number 0-7 that specifies the bit to be written to.\r
+* - 0: LSB\r
+* - 7: MSB\r
+*\r
+* Reads a the current value from the specified pin of the given GIO port\r
+*/\r
+unsigned gioGetBit(gioPORT_t *port, unsigned bit)\r
+{\r
+ return (port->DIN >> bit) & 1U;\r
+}\r
+\r
+\r
+/** @fn unsigned gioGetPort(gioPORT_t *port)\r
+* @brief Read Port Value\r
+* @param[in] port pointer to GIO port:\r
+* - gioPORTA: PortA pointer\r
+* - gioPORTB: PortB pointer\r
+*\r
+* Reads a the current value of a given GIO port\r
+*/\r
+unsigned gioGetPort(gioPORT_t *port)\r
+{\r
+ return port->DIN;\r
+}\r
+\r
+\r
+/** @fn void gioEnableNotification(unsigned bit)\r
+* @brief Enable Interrupt\r
+* @param[in] bit interrupt pin to enable\r
+* - 0: LSB\r
+* - 7: MSB\r
+*\r
+* Enables an innterrupt pin of PortA\r
+*/\r
+void gioEnableNotification(unsigned bit)\r
+{\r
+ gioREG->INTENASET = 1 << bit;\r
+}\r
+\r
+\r
+/** @fn void gioDisableNotification(unsigned bit)\r
+* @brief Disable Interrupt\r
+* @param[in] bit interrupt pin to enable\r
+* - 0: LSB\r
+* - 7: MSB\r
+*\r
+* Disables an innterrupt pin of PortA\r
+*/\r
+void gioDisableNotification(unsigned bit)\r
+{\r
+ gioREG->INTENACLR = 1 << bit;\r
+}\r
--- /dev/null
+/** @file gio.h\r
+* @brief GIO Driver Definition File\r
+* @date 11.August.2009\r
+* @version 1.01.000\r
+* \r
+*/\r
+\r
+/* (c) Texas Instruments 2009-2010, All rights reserved. */\r
+\r
+\r
+#ifndef __GIO_H__\r
+#define __GIO_H__\r
+\r
+/** @struct gioBase\r
+* @brief GIO Base Register Definition\r
+*\r
+* This structure is used to access the GIO module egisters.\r
+*/\r
+/** @typedef gioBASE_t\r
+* @brief GIO Register Frame Type Definition\r
+*\r
+* This type is used to access the GIO Registers.\r
+*/\r
+typedef volatile struct gioBase\r
+{\r
+ unsigned GCR0; /**< 0x0000: Global Control Register */\r
+ unsigned PWDN; /**< 0x0004: Power Down Register */\r
+ unsigned INTDET; /**< 0x0008: Interrupt Detect Regsiter*/\r
+ unsigned POL; /**< 0x000C: Interrupt Polarity Register */\r
+ unsigned INTENASET; /**< 0x0010: Interrupt Enable Set Register */\r
+ unsigned INTENACLR; /**< 0x0014: Interrupt Enable Clear Register */\r
+ unsigned LVLSET; /**< 0x0018: Interrupt Priority Set Register */\r
+ unsigned LVLCLR; /**< 0x001C: Interrupt Priority Clear Register */\r
+ unsigned FLG; /**< 0x0020: Interrupt Flag Register */\r
+ unsigned OFFSET0; /**< 0x0024: Interrupt Offset A Register */\r
+ unsigned OFFSET1; /**< 0x0028: Interrupt Offset B Register */\r
+} gioBASE_t;\r
+\r
+\r
+/** @struct gioPort\r
+* @brief GIO Port Register Definition\r
+*/\r
+/** @typedef gioPORT_t\r
+* @brief GIO Port Register Type Definition\r
+*\r
+* This type is used to access the GIO Port Registers.\r
+*/\r
+typedef volatile struct gioPort\r
+{\r
+ unsigned DIR; /**< 0x0000: Data Direction Register */\r
+ unsigned DIN; /**< 0x0004: Data Input Register */\r
+ unsigned DOUT; /**< 0x0008: Data Output Register */\r
+ unsigned DSET; /**< 0x000C: Data Output Set Register */\r
+ unsigned DCLR; /**< 0x0010: Data Output Clear Register */\r
+ unsigned PDR; /**< 0x0014: Open Drain Regsiter */\r
+ unsigned PULDIS; /**< 0x0018: Pullup Disable Register */\r
+ unsigned PSL; /**< 0x001C: Pull Up/Down Selection Register */\r
+} gioPORT_t;\r
+\r
+\r
+/** @def gioREG\r
+* @brief GIO Register Frame Pointer\r
+*\r
+* This pointer is used by the GIO driver to access the gio module registers.\r
+*/\r
+#define gioREG ((gioBASE_t *)0xFFF7BC00U)\r
+\r
+/** @def gioPORTA\r
+* @brief GIO Port (A) Register Pointer\r
+*\r
+* Pointer used by the GIO driver to access PORTA\r
+*/\r
+#define gioPORTA ((gioPORT_t *)0xFFF7BC34U)\r
+\r
+/** @def gioPORTB\r
+* @brief GIO Port (B) Register Pointer\r
+*\r
+* Pointer used by the GIO driver to access PORTB\r
+*/\r
+#define gioPORTB ((gioPORT_t *)0xFFF7BC54U)\r
+\r
+\r
+/* GIO Interface Functions */\r
+void gioInit(void);\r
+void gioSetDirection(gioPORT_t *port, unsigned dir);\r
+void gioSetBit(gioPORT_t *port, unsigned bit, unsigned value);\r
+void gioSetPort(gioPORT_t *port, unsigned value);\r
+unsigned gioGetBit(gioPORT_t *port, unsigned bit);\r
+unsigned gioGetPort(gioPORT_t *port);\r
+void gioEnableNotification(unsigned bit);\r
+void gioDisableNotification(unsigned bit);\r
+void gioNotification(int bit);\r
+\r
+#endif\r
--- /dev/null
+/*\r
+ FreeRTOS V7.0.2 - Copyright (C) 2011 Real Time Engineers Ltd.\r
+\r
+\r
+ ***************************************************************************\r
+ * *\r
+ * FreeRTOS tutorial books are available in pdf and paperback. *\r
+ * Complete, revised, and edited pdf reference manuals are also *\r
+ * available. *\r
+ * *\r
+ * Purchasing FreeRTOS documentation will not only help you, by *\r
+ * ensuring you get running as quickly as possible and with an *\r
+ * in-depth knowledge of how to use FreeRTOS, it will also help *\r
+ * the FreeRTOS project to continue with its mission of providing *\r
+ * professional grade, cross platform, de facto standard solutions *\r
+ * for microcontrollers - completely free of charge! *\r
+ * *\r
+ * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
+ * *\r
+ * Thank you for using FreeRTOS, and thank you for your support! *\r
+ * *\r
+ ***************************************************************************\r
+\r
+\r
+ This file is part of the FreeRTOS distribution.\r
+\r
+ FreeRTOS is free software; you can redistribute it and/or modify it under\r
+ the terms of the GNU General Public License (version 2) as published by the\r
+ Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
+ >>>NOTE<<< The modification to the GPL is included to allow you to\r
+ distribute a combined work that includes FreeRTOS without being obliged to\r
+ provide the source code for proprietary components outside of the FreeRTOS\r
+ kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
+ WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
+ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
+ more details. You should have received a copy of the GNU General Public\r
+ License and the FreeRTOS license exception along with FreeRTOS; if not it\r
+ can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
+ by writing to Richard Barry, contact details for whom are available on the\r
+ FreeRTOS WEB site.\r
+\r
+ 1 tab == 4 spaces!\r
+\r
+ http://www.FreeRTOS.org - Documentation, latest information, license and\r
+ contact details.\r
+\r
+ http://www.SafeRTOS.com - A version that is certified for use in safety\r
+ critical systems.\r
+\r
+ http://www.OpenRTOS.com - Commercial support, development, porting,\r
+ licensing and training services.\r
+*/\r
+\r
+#include "FreeRTOS.h"\r
+#include "Task.h"\r
+#include "gio.h"\r
+#include "het.h"\r
+\r
+/*\r
+ * Task that flashes the LEDS on the USB stick.\r
+ *\r
+ * This task is also run in Thumb mode to test the ARM/THUMB context switch\r
+ */\r
+\r
+#pragma TASK(vLedTask)\r
+#pragma CODE_STATE(vLedTask, 16)\r
+\r
+void vLedTask(void *pvParameters)\r
+{\r
+ unsigned led = 0;\r
+ unsigned count = 0;\r
+ unsigned colour = 0;\r
+\r
+ /* Initalise the IO ports that drive the LEDs */\r
+ gioSetDirection(hetPORT, 0xFFFFFFFF);\r
+ /* switch all leds off */\r
+ gioSetPort(hetPORT, 0x08110034);\r
+\r
+ for(;;)\r
+ {\r
+ /* toggle on/off */\r
+ led ^= 1;\r
+ /* switch TOP row */\r
+ gioSetBit(hetPORT, 25, led);\r
+ gioSetBit(hetPORT, 18, led);\r
+ gioSetBit(hetPORT, 29, led);\r
+ /* switch BOTTOM row */\r
+ gioSetBit(hetPORT, 17, led ^ 1);\r
+ gioSetBit(hetPORT, 31, led ^ 1);\r
+ gioSetBit(hetPORT, 0, led ^ 1);\r
+ vTaskDelay(500);\r
+\r
+ if (++count > 5)\r
+ {\r
+ count = 0;\r
+ /* both leds to off */\r
+ gioSetBit(hetPORT, 2, 1); gioSetBit(hetPORT, 5, 1); gioSetBit(hetPORT, 20, 1);\r
+ gioSetBit(hetPORT, 4, 1); gioSetBit(hetPORT, 27, 1); gioSetBit(hetPORT, 16, 1);\r
+ switch(colour)\r
+ {\r
+ case 0:\r
+ gioSetBit(hetPORT, 2, 0); /* red */\r
+ gioSetBit(hetPORT, 4, 0);\r
+ colour++;\r
+ continue;\r
+ case 1:\r
+ gioSetBit(hetPORT, 5, 0); /* blue */\r
+ gioSetBit(hetPORT, 27, 0);\r
+ colour++;\r
+ continue;\r
+ case 2:\r
+ gioSetBit(hetPORT, 20, 0); /* green */\r
+ gioSetBit(hetPORT, 16, 0);\r
+ colour++;\r
+ continue;\r
+ }\r
+ colour = 0;\r
+ }\r
+ }\r
+}\r
+\r
--- /dev/null
+/*\r
+ FreeRTOS V7.0.2 - Copyright (C) 2011 Real Time Engineers Ltd.\r
+\r
+\r
+ ***************************************************************************\r
+ * *\r
+ * FreeRTOS tutorial books are available in pdf and paperback. *\r
+ * Complete, revised, and edited pdf reference manuals are also *\r
+ * available. *\r
+ * *\r
+ * Purchasing FreeRTOS documentation will not only help you, by *\r
+ * ensuring you get running as quickly as possible and with an *\r
+ * in-depth knowledge of how to use FreeRTOS, it will also help *\r
+ * the FreeRTOS project to continue with its mission of providing *\r
+ * professional grade, cross platform, de facto standard solutions *\r
+ * for microcontrollers - completely free of charge! *\r
+ * *\r
+ * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
+ * *\r
+ * Thank you for using FreeRTOS, and thank you for your support! *\r
+ * *\r
+ ***************************************************************************\r
+\r
+\r
+ This file is part of the FreeRTOS distribution.\r
+\r
+ FreeRTOS is free software; you can redistribute it and/or modify it under\r
+ the terms of the GNU General Public License (version 2) as published by the\r
+ Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
+ >>>NOTE<<< The modification to the GPL is included to allow you to\r
+ distribute a combined work that includes FreeRTOS without being obliged to\r
+ provide the source code for proprietary components outside of the FreeRTOS\r
+ kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
+ WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
+ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
+ more details. You should have received a copy of the GNU General Public\r
+ License and the FreeRTOS license exception along with FreeRTOS; if not it\r
+ can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
+ by writing to Richard Barry, contact details for whom are available on the\r
+ FreeRTOS WEB site.\r
+\r
+ 1 tab == 4 spaces!\r
+\r
+ http://www.FreeRTOS.org - Documentation, latest information, license and\r
+ contact details.\r
+\r
+ http://www.SafeRTOS.com - A version that is certified for use in safety\r
+ critical systems.\r
+\r
+ http://www.OpenRTOS.com - Commercial support, development, porting,\r
+ licensing and training services.\r
+*/\r
+\r
+\r
+#ifndef __HET_H__\r
+#define __HET_H__\r
+\r
+#include "gio.h"\r
+\r
+/** @struct hetBase\r
+* @brief HET Register Definition\r
+*\r
+* This structure is used to access the HET module egisters.\r
+*/\r
+/** @typedef hetBASE_t\r
+* @brief HET Register Frame Type Definition\r
+*\r
+* This type is used to access the HET Registers.\r
+*/\r
+typedef volatile struct hetBase\r
+{\r
+ unsigned GCR; /**< 0x0000: Global control register */\r
+ unsigned PFR; /**< 0x0004: Prescale factor register */\r
+ unsigned ADDR; /**< 0x0008: Current address register */\r
+ unsigned OFF1; /**< 0x000C: Interrupt offset register 1 */\r
+ unsigned OFF2; /**< 0x0010: Interrupt offset register 2 */\r
+ unsigned INTENAS; /**< 0x0014: Interrupt enable set register */\r
+ unsigned INTENAC; /**< 0x0018: Interrupt enable clear register */\r
+ unsigned EXC1; /**< 0x001C: Exeption control register 1 */\r
+ unsigned EXC2; /**< 0x0020: Exeption control register 2 */\r
+ unsigned PRY; /**< 0x0024: Interrupt priority register */\r
+ unsigned FLG; /**< 0x0028: Interrupt flag register */\r
+ unsigned : 32U; /**< 0x002C: Reserved */\r
+ unsigned : 32U; /**< 0x0030: Reserved */\r
+ unsigned HRSH; /**< 0x0034: High resoltion share register */\r
+ unsigned XOR; /**< 0x0038: XOR share register */\r
+ unsigned REQENS; /**< 0x003C: Request enable set register */\r
+ unsigned REQENC; /**< 0x0040: Request enable clear register */\r
+ unsigned REQDS; /**< 0x0044: Request destination select register */\r
+ unsigned : 32U; /**< 0x0048: Reserved */\r
+ unsigned DIR; /**< 0x004C: Direction register */\r
+ unsigned DIN; /**< 0x0050: Data input register */\r
+ unsigned DOUT; /**< 0x0054: Data output register */\r
+ unsigned DSET; /**< 0x0058: Data output set register */\r
+ unsigned DCLR; /**< 0x005C: Data output clear register */\r
+ unsigned PDR; /**< 0x0060: Open drain register */\r
+ unsigned PULDIS; /**< 0x0064: Pull disable register */\r
+ unsigned PSL; /**< 0x0068: Pull select register */\r
+ unsigned : 32U; /**< 0x006C: Reserved */\r
+ unsigned : 32U; /**< 0x0070: Reserved */\r
+ unsigned PCREG; /**< 0x0074: Parity control register */\r
+ unsigned PAR; /**< 0x0078: Parity address register */\r
+ unsigned PPR; /**< 0x007C: Parity pin select register */\r
+ unsigned SFPRLD; /**< 0x0080: Suppression filter preload register */\r
+ unsigned SFENA; /**< 0x0084: Suppression filter enable register */\r
+ unsigned : 32U; /**< 0x0088: Reserved */\r
+ unsigned LBPSEL; /**< 0x008C: Loop back pair select register */\r
+ unsigned LBPDIR; /**< 0x0090: Loop back pair direction register */\r
+} hetBASE_t;\r
+\r
+\r
+/** @def hetREG\r
+* @brief HET Register Frame Pointer\r
+*\r
+* This pointer is used by the HET driver to access the het module registers.\r
+*/\r
+#define hetREG ((hetBASE_t *)0xFFF7B800U)\r
+\r
+\r
+/** @def hetPORT\r
+* @brief HET GIO Port Register Pointer\r
+*\r
+* Pointer used by the GIO driver to access I/O PORT of HET\r
+* (use the GIO drivers to access the port pins).\r
+*/\r
+#define hetPORT ((gioPORT_t *)0xFFF7B84CU)\r
+\r
+#endif\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-/*\r
- * Creates six tasks that operate on three queues as follows:\r
- *\r
- * The first two tasks send and receive an incrementing number to/from a queue.\r
- * One task acts as a producer and the other as the consumer. The consumer is a\r
- * higher priority than the producer and is set to block on queue reads. The queue\r
- * only has space for one item - as soon as the producer posts a message on the\r
- * queue the consumer will unblock, pre-empt the producer, and remove the item.\r
- *\r
- * The second two tasks work the other way around. Again the queue used only has\r
- * enough space for one item. This time the consumer has a lower priority than the\r
- * producer. The producer will try to post on the queue blocking when the queue is\r
- * full. When the consumer wakes it will remove the item from the queue, causing\r
- * the producer to unblock, pre-empt the consumer, and immediately re-fill the\r
- * queue.\r
- *\r
- * The last two tasks use the same queue producer and consumer functions. This time the queue has\r
- * enough space for lots of items and the tasks operate at the same priority. The\r
- * producer will execute, placing items into the queue. The consumer will start\r
- * executing when either the queue becomes full (causing the producer to block) or\r
- * a context switch occurs (tasks of the same priority will time slice).\r
- *\r
- */\r
-\r
-/*\r
-\r
-Changes from V4.1.1\r
-\r
- + The second set of tasks were created the wrong way around. This has been\r
- corrected.\r
-*/\r
-\r
-\r
-#include <stdlib.h>\r
-\r
-/* Scheduler include files. */\r
-#include "FreeRTOS.h"\r
-#include "task.h"\r
-#include "queue.h"\r
-\r
-/* Demo program include files. */\r
-#include "BlockQ.h"\r
-\r
-#define blckqSTACK_SIZE configMINIMAL_STACK_SIZE\r
-#define blckqNUM_TASK_SETS ( 3 )\r
-\r
-/* Structure used to pass parameters to the blocking queue tasks. */\r
-typedef struct BLOCKING_QUEUE_PARAMETERS\r
-{\r
- xQueueHandle xQueue; /*< The queue to be used by the task. */\r
- portTickType xBlockTime; /*< The block time to use on queue reads/writes. */\r
- volatile short *psCheckVariable; /*< Incremented on each successful cycle to check the task is still running. */\r
-} xBlockingQueueParameters;\r
-\r
-/* Task function that creates an incrementing number and posts it on a queue. */\r
-static portTASK_FUNCTION_PROTO( vBlockingQueueProducer, pvParameters );\r
-\r
-/* Task function that removes the incrementing number from a queue and checks that\r
-it is the expected number. */\r
-static portTASK_FUNCTION_PROTO( vBlockingQueueConsumer, pvParameters );\r
-\r
-/* Variables which are incremented each time an item is removed from a queue, and\r
-found to be the expected value.\r
-These are used to check that the tasks are still running. */\r
-static volatile short sBlockingConsumerCount[ blckqNUM_TASK_SETS ] = { ( unsigned short ) 0, ( unsigned short ) 0, ( unsigned short ) 0 };\r
-\r
-/* Variable which are incremented each time an item is posted on a queue. These\r
-are used to check that the tasks are still running. */\r
-static volatile short sBlockingProducerCount[ blckqNUM_TASK_SETS ] = { ( unsigned short ) 0, ( unsigned short ) 0, ( unsigned short ) 0 };\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-void vStartBlockingQueueTasks( unsigned portBASE_TYPE uxPriority )\r
-{\r
-xBlockingQueueParameters *pxQueueParameters1, *pxQueueParameters2;\r
-xBlockingQueueParameters *pxQueueParameters3, *pxQueueParameters4;\r
-xBlockingQueueParameters *pxQueueParameters5, *pxQueueParameters6;\r
-const unsigned portBASE_TYPE uxQueueSize1 = 1, uxQueueSize5 = 5;\r
-const portTickType xBlockTime = ( portTickType ) 1000 / portTICK_RATE_MS;\r
-const portTickType xDontBlock = ( portTickType ) 0;\r
-\r
- /* Create the first two tasks as described at the top of the file. */\r
- \r
- /* First create the structure used to pass parameters to the consumer tasks. */\r
- pxQueueParameters1 = ( xBlockingQueueParameters * ) pvPortMalloc( sizeof( xBlockingQueueParameters ) );\r
-\r
- /* Create the queue used by the first two tasks to pass the incrementing number.\r
- Pass a pointer to the queue in the parameter structure. */\r
- pxQueueParameters1->xQueue = xQueueCreate( uxQueueSize1, ( unsigned portBASE_TYPE ) sizeof( unsigned short ) );\r
-\r
- /* The consumer is created first so gets a block time as described above. */\r
- pxQueueParameters1->xBlockTime = xBlockTime;\r
-\r
- /* Pass in the variable that this task is going to increment so we can check it\r
- is still running. */\r
- pxQueueParameters1->psCheckVariable = &( sBlockingConsumerCount[ 0 ] );\r
- \r
- /* Create the structure used to pass parameters to the producer task. */\r
- pxQueueParameters2 = ( xBlockingQueueParameters * ) pvPortMalloc( sizeof( xBlockingQueueParameters ) );\r
-\r
- /* Pass the queue to this task also, using the parameter structure. */\r
- pxQueueParameters2->xQueue = pxQueueParameters1->xQueue;\r
-\r
- /* The producer is not going to block - as soon as it posts the consumer will\r
- wake and remove the item so the producer should always have room to post. */\r
- pxQueueParameters2->xBlockTime = xDontBlock;\r
-\r
- /* Pass in the variable that this task is going to increment so we can check\r
- it is still running. */\r
- pxQueueParameters2->psCheckVariable = &( sBlockingProducerCount[ 0 ] );\r
-\r
-\r
- /* Note the producer has a lower priority than the consumer when the tasks are\r
- spawned. */\r
- xTaskCreate( vBlockingQueueConsumer, ( signed char * ) "QConsB1", blckqSTACK_SIZE, ( void * ) pxQueueParameters1, uxPriority, NULL );\r
- xTaskCreate( vBlockingQueueProducer, ( signed char * ) "QProdB2", blckqSTACK_SIZE, ( void * ) pxQueueParameters2, tskIDLE_PRIORITY, NULL );\r
-\r
- \r
-\r
- /* Create the second two tasks as described at the top of the file. This uses\r
- the same mechanism but reverses the task priorities. */\r
-\r
- pxQueueParameters3 = ( xBlockingQueueParameters * ) pvPortMalloc( sizeof( xBlockingQueueParameters ) );\r
- pxQueueParameters3->xQueue = xQueueCreate( uxQueueSize1, ( unsigned portBASE_TYPE ) sizeof( unsigned short ) );\r
- pxQueueParameters3->xBlockTime = xDontBlock;\r
- pxQueueParameters3->psCheckVariable = &( sBlockingProducerCount[ 1 ] );\r
-\r
- pxQueueParameters4 = ( xBlockingQueueParameters * ) pvPortMalloc( sizeof( xBlockingQueueParameters ) );\r
- pxQueueParameters4->xQueue = pxQueueParameters3->xQueue;\r
- pxQueueParameters4->xBlockTime = xBlockTime;\r
- pxQueueParameters4->psCheckVariable = &( sBlockingConsumerCount[ 1 ] );\r
-\r
- xTaskCreate( vBlockingQueueConsumer, ( signed char * ) "QConsB3", blckqSTACK_SIZE, ( void * ) pxQueueParameters3, tskIDLE_PRIORITY, NULL );\r
- xTaskCreate( vBlockingQueueProducer, ( signed char * ) "QProdB4", blckqSTACK_SIZE, ( void * ) pxQueueParameters4, uxPriority, NULL );\r
-\r
-\r
-\r
- /* Create the last two tasks as described above. The mechanism is again just\r
- the same. This time both parameter structures are given a block time. */\r
- pxQueueParameters5 = ( xBlockingQueueParameters * ) pvPortMalloc( sizeof( xBlockingQueueParameters ) );\r
- pxQueueParameters5->xQueue = xQueueCreate( uxQueueSize5, ( unsigned portBASE_TYPE ) sizeof( unsigned short ) );\r
- pxQueueParameters5->xBlockTime = xBlockTime;\r
- pxQueueParameters5->psCheckVariable = &( sBlockingProducerCount[ 2 ] );\r
-\r
- pxQueueParameters6 = ( xBlockingQueueParameters * ) pvPortMalloc( sizeof( xBlockingQueueParameters ) );\r
- pxQueueParameters6->xQueue = pxQueueParameters5->xQueue;\r
- pxQueueParameters6->xBlockTime = xBlockTime;\r
- pxQueueParameters6->psCheckVariable = &( sBlockingConsumerCount[ 2 ] ); \r
-\r
- xTaskCreate( vBlockingQueueProducer, ( signed char * ) "QProdB5", blckqSTACK_SIZE, ( void * ) pxQueueParameters5, tskIDLE_PRIORITY, NULL );\r
- xTaskCreate( vBlockingQueueConsumer, ( signed char * ) "QConsB6", blckqSTACK_SIZE, ( void * ) pxQueueParameters6, tskIDLE_PRIORITY, NULL );\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static portTASK_FUNCTION( vBlockingQueueProducer, pvParameters )\r
-{\r
-unsigned short usValue = 0;\r
-xBlockingQueueParameters *pxQueueParameters;\r
-short sErrorEverOccurred = pdFALSE;\r
-\r
- pxQueueParameters = ( xBlockingQueueParameters * ) pvParameters;\r
-\r
- for( ;; )\r
- { \r
- if( xQueueSend( pxQueueParameters->xQueue, ( void * ) &usValue, pxQueueParameters->xBlockTime ) != pdPASS )\r
- {\r
- sErrorEverOccurred = pdTRUE;\r
- }\r
- else\r
- {\r
- /* We have successfully posted a message, so increment the variable\r
- used to check we are still running. */\r
- if( sErrorEverOccurred == pdFALSE )\r
- {\r
- ( *pxQueueParameters->psCheckVariable )++;\r
- }\r
-\r
- /* Increment the variable we are going to post next time round. The\r
- consumer will expect the numbers to follow in numerical order. */\r
- ++usValue;\r
- }\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static portTASK_FUNCTION( vBlockingQueueConsumer, pvParameters )\r
-{\r
-unsigned short usData, usExpectedValue = 0;\r
-xBlockingQueueParameters *pxQueueParameters;\r
-short sErrorEverOccurred = pdFALSE;\r
-\r
- pxQueueParameters = ( xBlockingQueueParameters * ) pvParameters;\r
-\r
- for( ;; )\r
- { \r
- if( xQueueReceive( pxQueueParameters->xQueue, &usData, pxQueueParameters->xBlockTime ) == pdPASS )\r
- {\r
- if( usData != usExpectedValue )\r
- {\r
- /* Catch-up. */\r
- usExpectedValue = usData;\r
-\r
- sErrorEverOccurred = pdTRUE;\r
- }\r
- else\r
- {\r
- /* We have successfully received a message, so increment the\r
- variable used to check we are still running. */ \r
- if( sErrorEverOccurred == pdFALSE )\r
- {\r
- ( *pxQueueParameters->psCheckVariable )++;\r
- }\r
- \r
- /* Increment the value we expect to remove from the queue next time\r
- round. */\r
- ++usExpectedValue;\r
- } \r
- } \r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-/* This is called to check that all the created tasks are still running. */\r
-portBASE_TYPE xAreBlockingQueuesStillRunning( void )\r
-{\r
-static short sLastBlockingConsumerCount[ blckqNUM_TASK_SETS ] = { ( unsigned short ) 0, ( unsigned short ) 0, ( unsigned short ) 0 };\r
-static short sLastBlockingProducerCount[ blckqNUM_TASK_SETS ] = { ( unsigned short ) 0, ( unsigned short ) 0, ( unsigned short ) 0 };\r
-portBASE_TYPE xReturn = pdPASS, xTasks;\r
-\r
- /* Not too worried about mutual exclusion on these variables as they are 16\r
- bits and we are only reading them. We also only care to see if they have\r
- changed or not.\r
- \r
- Loop through each check variable to and return pdFALSE if any are found not\r
- to have changed since the last call. */\r
-\r
- for( xTasks = 0; xTasks < blckqNUM_TASK_SETS; xTasks++ )\r
- {\r
- if( sBlockingConsumerCount[ xTasks ] == sLastBlockingConsumerCount[ xTasks ] )\r
- {\r
- xReturn = pdFALSE;\r
- }\r
- sLastBlockingConsumerCount[ xTasks ] = sBlockingConsumerCount[ xTasks ];\r
-\r
-\r
- if( sBlockingProducerCount[ xTasks ] == sLastBlockingProducerCount[ xTasks ] )\r
- {\r
- xReturn = pdFALSE;\r
- }\r
- sLastBlockingProducerCount[ xTasks ] = sBlockingProducerCount[ xTasks ];\r
- }\r
-\r
- return xReturn;\r
-}\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-#ifndef BLOCK_Q_H\r
-#define BLOCK_Q_H\r
-\r
-void vStartBlockingQueueTasks( unsigned portBASE_TYPE uxPriority );\r
-portBASE_TYPE xAreBlockingQueuesStillRunning( void );\r
-\r
-#endif\r
-\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-\r
-/* \r
- * Tests the extra queue functionality introduced in FreeRTOS.org V4.5.0 - \r
- * including xQueueSendToFront(), xQueueSendToBack(), xQueuePeek() and \r
- * mutex behaviour. \r
- *\r
- * See the comments above the prvSendFrontAndBackTest() and \r
- * prvLowPriorityMutexTask() prototypes below for more information.\r
- */\r
-\r
-\r
-#include <stdlib.h>\r
-\r
-/* Scheduler include files. */\r
-#include "FreeRTOS.h"\r
-#include "task.h"\r
-#include "queue.h"\r
-#include "semphr.h"\r
-\r
-/* Demo program include files. */\r
-#include "GenQTest.h"\r
-\r
-#define genqQUEUE_LENGTH ( 5 )\r
-#define genqNO_BLOCK ( 0 )\r
-\r
-#define genqMUTEX_LOW_PRIORITY ( tskIDLE_PRIORITY )\r
-#define genqMUTEX_TEST_PRIORITY ( tskIDLE_PRIORITY + 1 )\r
-#define genqMUTEX_MEDIUM_PRIORITY ( tskIDLE_PRIORITY + 2 )\r
-#define genqMUTEX_HIGH_PRIORITY ( tskIDLE_PRIORITY + 3 )\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-/*\r
- * Tests the behaviour of the xQueueSendToFront() and xQueueSendToBack()\r
- * macros by using both to fill a queue, then reading from the queue to\r
- * check the resultant queue order is as expected. Queue data is also\r
- * peeked.\r
- */\r
-static void prvSendFrontAndBackTest( void *pvParameters );\r
-\r
-/*\r
- * The following three tasks are used to demonstrate the mutex behaviour.\r
- * Each task is given a different priority to demonstrate the priority\r
- * inheritance mechanism.\r
- *\r
- * The low priority task obtains a mutex. After this a high priority task\r
- * attempts to obtain the same mutex, causing its priority to be inherited\r
- * by the low priority task. The task with the inherited high priority then\r
- * resumes a medium priority task to ensure it is not blocked by the medium\r
- * priority task while it holds the inherited high priority. Once the mutex\r
- * is returned the task with the inherited priority returns to its original\r
- * low priority, and is therefore immediately preempted by first the high\r
- * priority task and then the medium prioroity task before it can continue.\r
- */\r
-static void prvLowPriorityMutexTask( void *pvParameters );\r
-static void prvMediumPriorityMutexTask( void *pvParameters );\r
-static void prvHighPriorityMutexTask( void *pvParameters );\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-/* Flag that will be latched to pdTRUE should any unexpected behaviour be\r
-detected in any of the tasks. */\r
-static portBASE_TYPE xErrorDetected = pdFALSE;\r
-\r
-/* Counters that are incremented on each cycle of a test. This is used to\r
-detect a stalled task - a test that is no longer running. */\r
-static volatile unsigned portLONG ulLoopCounter = 0;\r
-static volatile unsigned portLONG ulLoopCounter2 = 0;\r
-\r
-/* The variable that is guarded by the mutex in the mutex demo tasks. */\r
-static volatile unsigned portLONG ulGuardedVariable = 0;\r
-\r
-/* Handles used in the mutext test to suspend and resume the high and medium\r
-priority mutex test tasks. */\r
-static xTaskHandle xHighPriorityMutexTask, xMediumPriorityMutexTask;\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-void vStartGenericQueueTasks( unsigned portBASE_TYPE uxPriority )\r
-{\r
-xQueueHandle xQueue;\r
-xSemaphoreHandle xMutex;\r
-\r
- /* Create the queue that we are going to use for the\r
- prvSendFrontAndBackTest demo. */\r
- xQueue = xQueueCreate( genqQUEUE_LENGTH, sizeof( unsigned portLONG ) );\r
-\r
- /* vQueueAddToRegistry() adds the queue to the queue registry, if one is\r
- in use. The queue registry is provided as a means for kernel aware \r
- debuggers to locate queues and has no purpose if a kernel aware debugger\r
- is not being used. The call to vQueueAddToRegistry() will be removed\r
- by the pre-processor if configQUEUE_REGISTRY_SIZE is not defined or is \r
- defined to be less than 1. */\r
- vQueueAddToRegistry( xQueue, ( signed portCHAR * ) "Gen_Queue_Test" );\r
-\r
- /* Create the demo task and pass it the queue just created. We are\r
- passing the queue handle by value so it does not matter that it is\r
- declared on the stack here. */\r
- xTaskCreate( prvSendFrontAndBackTest, ( signed portCHAR * )"GenQ", configMINIMAL_STACK_SIZE, ( void * ) xQueue, uxPriority, NULL );\r
-\r
- /* Create the mutex used by the prvMutexTest task. */\r
- xMutex = xSemaphoreCreateMutex();\r
-\r
- /* vQueueAddToRegistry() adds the mutex to the registry, if one is\r
- in use. The registry is provided as a means for kernel aware \r
- debuggers to locate mutexes and has no purpose if a kernel aware debugger\r
- is not being used. The call to vQueueAddToRegistry() will be removed\r
- by the pre-processor if configQUEUE_REGISTRY_SIZE is not defined or is \r
- defined to be less than 1. */\r
- vQueueAddToRegistry( ( xQueueHandle ) xMutex, ( signed portCHAR * ) "Gen_Queue_Mutex" );\r
-\r
- /* Create the mutex demo tasks and pass it the mutex just created. We are\r
- passing the mutex handle by value so it does not matter that it is declared\r
- on the stack here. */\r
- xTaskCreate( prvLowPriorityMutexTask, ( signed portCHAR * )"MuLow", configMINIMAL_STACK_SIZE, ( void * ) xMutex, genqMUTEX_LOW_PRIORITY, NULL );\r
- xTaskCreate( prvMediumPriorityMutexTask, ( signed portCHAR * )"MuMed", configMINIMAL_STACK_SIZE, NULL, genqMUTEX_MEDIUM_PRIORITY, &xMediumPriorityMutexTask );\r
- xTaskCreate( prvHighPriorityMutexTask, ( signed portCHAR * )"MuHigh", configMINIMAL_STACK_SIZE, ( void * ) xMutex, genqMUTEX_HIGH_PRIORITY, &xHighPriorityMutexTask );\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvSendFrontAndBackTest( void *pvParameters )\r
-{\r
-unsigned portLONG ulData, ulData2;\r
-xQueueHandle xQueue;\r
-\r
- #ifdef USE_STDIO\r
- void vPrintDisplayMessage( const portCHAR * const * ppcMessageToSend );\r
- \r
- const portCHAR * const pcTaskStartMsg = "Queue SendToFront/SendToBack/Peek test started.\r\n";\r
-\r
- /* Queue a message for printing to say the task has started. */\r
- vPrintDisplayMessage( &pcTaskStartMsg );\r
- #endif\r
-\r
- xQueue = ( xQueueHandle ) pvParameters;\r
-\r
- for( ;; )\r
- {\r
- /* The queue is empty, so sending an item to the back of the queue\r
- should have the same efect as sending it to the front of the queue.\r
-\r
- First send to the front and check everything is as expected. */\r
- xQueueSendToFront( xQueue, ( void * ) &ulLoopCounter, genqNO_BLOCK );\r
-\r
- if( uxQueueMessagesWaiting( xQueue ) != 1 )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- if( xQueueReceive( xQueue, ( void * ) &ulData, genqNO_BLOCK ) != pdPASS )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- /* The data we sent to the queue should equal the data we just received\r
- from the queue. */\r
- if( ulLoopCounter != ulData )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- /* Then do the same, sending the data to the back, checking everything\r
- is as expected. */\r
- if( uxQueueMessagesWaiting( xQueue ) != 0 )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- xQueueSendToBack( xQueue, ( void * ) &ulLoopCounter, genqNO_BLOCK );\r
-\r
- if( uxQueueMessagesWaiting( xQueue ) != 1 )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- if( xQueueReceive( xQueue, ( void * ) &ulData, genqNO_BLOCK ) != pdPASS )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- if( uxQueueMessagesWaiting( xQueue ) != 0 )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- /* The data we sent to the queue should equal the data we just received\r
- from the queue. */\r
- if( ulLoopCounter != ulData )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- #if configUSE_PREEMPTION == 0\r
- taskYIELD();\r
- #endif\r
-\r
-\r
-\r
- /* Place 2, 3, 4 into the queue, adding items to the back of the queue. */\r
- for( ulData = 2; ulData < 5; ulData++ )\r
- {\r
- xQueueSendToBack( xQueue, ( void * ) &ulData, genqNO_BLOCK );\r
- }\r
-\r
- /* Now the order in the queue should be 2, 3, 4, with 2 being the first\r
- thing to be read out. Now add 1 then 0 to the front of the queue. */\r
- if( uxQueueMessagesWaiting( xQueue ) != 3 )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
- ulData = 1;\r
- xQueueSendToFront( xQueue, ( void * ) &ulData, genqNO_BLOCK );\r
- ulData = 0;\r
- xQueueSendToFront( xQueue, ( void * ) &ulData, genqNO_BLOCK );\r
-\r
- /* Now the queue should be full, and when we read the data out we\r
- should receive 0, 1, 2, 3, 4. */\r
- if( uxQueueMessagesWaiting( xQueue ) != 5 )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- if( xQueueSendToFront( xQueue, ( void * ) &ulData, genqNO_BLOCK ) != errQUEUE_FULL )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- if( xQueueSendToBack( xQueue, ( void * ) &ulData, genqNO_BLOCK ) != errQUEUE_FULL )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- #if configUSE_PREEMPTION == 0\r
- taskYIELD();\r
- #endif\r
-\r
- /* Check the data we read out is in the expected order. */\r
- for( ulData = 0; ulData < genqQUEUE_LENGTH; ulData++ )\r
- {\r
- /* Try peeking the data first. */\r
- if( xQueuePeek( xQueue, &ulData2, genqNO_BLOCK ) != pdPASS )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- if( ulData != ulData2 )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
- \r
-\r
- /* Now try receiving the data for real. The value should be the\r
- same. Clobber the value first so we know we really received it. */\r
- ulData2 = ~ulData2;\r
- if( xQueueReceive( xQueue, &ulData2, genqNO_BLOCK ) != pdPASS )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- if( ulData != ulData2 )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
- }\r
-\r
- /* The queue should now be empty again. */\r
- if( uxQueueMessagesWaiting( xQueue ) != 0 )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- #if configUSE_PREEMPTION == 0\r
- taskYIELD();\r
- #endif\r
-\r
-\r
- /* Our queue is empty once more, add 10, 11 to the back. */\r
- ulData = 10;\r
- if( xQueueSend( xQueue, &ulData, genqNO_BLOCK ) != pdPASS )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
- ulData = 11;\r
- if( xQueueSend( xQueue, &ulData, genqNO_BLOCK ) != pdPASS )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- if( uxQueueMessagesWaiting( xQueue ) != 2 )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- /* Now we should have 10, 11 in the queue. Add 7, 8, 9 to the\r
- front. */\r
- for( ulData = 9; ulData >= 7; ulData-- )\r
- {\r
- if( xQueueSendToFront( xQueue, ( void * ) &ulData, genqNO_BLOCK ) != pdPASS )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
- }\r
-\r
- /* Now check that the queue is full, and that receiving data provides\r
- the expected sequence of 7, 8, 9, 10, 11. */\r
- if( uxQueueMessagesWaiting( xQueue ) != 5 )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- if( xQueueSendToFront( xQueue, ( void * ) &ulData, genqNO_BLOCK ) != errQUEUE_FULL )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- if( xQueueSendToBack( xQueue, ( void * ) &ulData, genqNO_BLOCK ) != errQUEUE_FULL )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- #if configUSE_PREEMPTION == 0\r
- taskYIELD();\r
- #endif\r
-\r
- /* Check the data we read out is in the expected order. */\r
- for( ulData = 7; ulData < ( 7 + genqQUEUE_LENGTH ); ulData++ )\r
- {\r
- if( xQueueReceive( xQueue, &ulData2, genqNO_BLOCK ) != pdPASS )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- if( ulData != ulData2 )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
- }\r
-\r
- if( uxQueueMessagesWaiting( xQueue ) != 0 )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- ulLoopCounter++;\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvLowPriorityMutexTask( void *pvParameters )\r
-{\r
-xSemaphoreHandle xMutex = ( xSemaphoreHandle ) pvParameters;\r
-\r
- #ifdef USE_STDIO\r
- void vPrintDisplayMessage( const portCHAR * const * ppcMessageToSend );\r
- \r
- const portCHAR * const pcTaskStartMsg = "Mutex with priority inheritance test started.\r\n";\r
-\r
- /* Queue a message for printing to say the task has started. */\r
- vPrintDisplayMessage( &pcTaskStartMsg );\r
- #endif\r
-\r
- for( ;; )\r
- {\r
- /* Take the mutex. It should be available now. */\r
- if( xSemaphoreTake( xMutex, genqNO_BLOCK ) != pdPASS )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- /* Set our guarded variable to a known start value. */\r
- ulGuardedVariable = 0;\r
-\r
- /* Our priority should be as per that assigned when the task was\r
- created. */\r
- if( uxTaskPriorityGet( NULL ) != genqMUTEX_LOW_PRIORITY )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- /* Now unsuspend the high priority task. This will attempt to take the\r
- mutex, and block when it finds it cannot obtain it. */\r
- vTaskResume( xHighPriorityMutexTask );\r
-\r
- /* We should now have inherited the prioritoy of the high priority task,\r
- as by now it will have attempted to get the mutex. */\r
- if( uxTaskPriorityGet( NULL ) != genqMUTEX_HIGH_PRIORITY )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- /* We can attempt to set our priority to the test priority - between the\r
- idle priority and the medium/high test priorities, but our actual\r
- prioroity should remain at the high priority. */\r
- vTaskPrioritySet( NULL, genqMUTEX_TEST_PRIORITY );\r
- if( uxTaskPriorityGet( NULL ) != genqMUTEX_HIGH_PRIORITY )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- /* Now unsuspend the medium priority task. This should not run as our\r
- inherited priority is above that of the medium priority task. */\r
- vTaskResume( xMediumPriorityMutexTask );\r
-\r
- /* If the did run then it will have incremented our guarded variable. */\r
- if( ulGuardedVariable != 0 )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- /* When we give back the semaphore our priority should be disinherited\r
- back to the priority to which we attempted to set ourselves. This means\r
- that when the high priority task next blocks, the medium priority task\r
- should execute and increment the guarded variable. When we next run\r
- both the high and medium priority tasks will have been suspended again. */\r
- if( xSemaphoreGive( xMutex ) != pdPASS )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- /* Check that the guarded variable did indeed increment... */\r
- if( ulGuardedVariable != 1 )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- /* ... and that our priority has been disinherited to\r
- genqMUTEX_TEST_PRIORITY. */\r
- if( uxTaskPriorityGet( NULL ) != genqMUTEX_TEST_PRIORITY )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- /* Set our priority back to our original priority ready for the next\r
- loop around this test. */\r
- vTaskPrioritySet( NULL, genqMUTEX_LOW_PRIORITY );\r
-\r
- /* Just to show we are still running. */\r
- ulLoopCounter2++;\r
-\r
- #if configUSE_PREEMPTION == 0\r
- taskYIELD();\r
- #endif \r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvMediumPriorityMutexTask( void *pvParameters )\r
-{\r
- ( void ) pvParameters;\r
-\r
- for( ;; )\r
- {\r
- /* The medium priority task starts by suspending itself. The low\r
- priority task will unsuspend this task when required. */\r
- vTaskSuspend( NULL );\r
-\r
- /* When this task unsuspends all it does is increment the guarded\r
- variable, this is so the low priority task knows that it has\r
- executed. */\r
- ulGuardedVariable++;\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvHighPriorityMutexTask( void *pvParameters )\r
-{\r
-xSemaphoreHandle xMutex = ( xSemaphoreHandle ) pvParameters;\r
-\r
- for( ;; )\r
- {\r
- /* The high priority task starts by suspending itself. The low\r
- priority task will unsuspend this task when required. */\r
- vTaskSuspend( NULL );\r
-\r
- /* When this task unsuspends all it does is attempt to obtain\r
- the mutex. It should find the mutex is not available so a\r
- block time is specified. */\r
- if( xSemaphoreTake( xMutex, portMAX_DELAY ) != pdPASS )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- /* When we eventually obtain the mutex we just give it back then\r
- return to suspend ready for the next test. */\r
- if( xSemaphoreGive( xMutex ) != pdPASS )\r
- {\r
- xErrorDetected = pdTRUE;\r
- } \r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-/* This is called to check that all the created tasks are still running. */\r
-portBASE_TYPE xAreGenericQueueTasksStillRunning( void )\r
-{\r
-static unsigned portLONG ulLastLoopCounter = 0, ulLastLoopCounter2 = 0;\r
-\r
- /* If the demo task is still running then we expect the loopcounters to\r
- have incremented since this function was last called. */\r
- if( ulLastLoopCounter == ulLoopCounter )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- if( ulLastLoopCounter2 == ulLoopCounter2 )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- ulLastLoopCounter = ulLoopCounter;\r
- ulLastLoopCounter2 = ulLoopCounter2; \r
-\r
- /* Errors detected in the task itself will have latched xErrorDetected\r
- to true. */\r
-\r
- return !xErrorDetected;\r
-}\r
-\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.0.2 - Copyright (C) 2011 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
-\r
- http://www.FreeRTOS.org - Documentation, latest information, license and\r
- contact details.\r
-\r
- http://www.SafeRTOS.com - A version that is certified for use in safety\r
- critical systems.\r
-\r
- http://www.OpenRTOS.com - Commercial support, development, porting,\r
- licensing and training services.\r
-*/\r
-\r
-#ifndef GEN_Q_TEST_H\r
-#define GEN_Q_TEST_H\r
-\r
-void vStartGenericQueueTasks( unsigned portBASE_TYPE uxPriority );\r
-portBASE_TYPE xAreGenericQueueTasksStillRunning( void );\r
-\r
-#endif /* GEN_Q_TEST_H */\r
-\r
-\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-/*\r
- * This version of PollQ. c is for use on systems that have limited stack\r
- * space and no display facilities. The complete version can be found in\r
- * the Demo/Common/Full directory.\r
- *\r
- * Creates two tasks that communicate over a single queue. One task acts as a\r
- * producer, the other a consumer.\r
- *\r
- * The producer loops for three iteration, posting an incrementing number onto the\r
- * queue each cycle. It then delays for a fixed period before doing exactly the\r
- * same again.\r
- *\r
- * The consumer loops emptying the queue. Each item removed from the queue is\r
- * checked to ensure it contains the expected value. When the queue is empty it\r
- * blocks for a fixed period, then does the same again.\r
- *\r
- * All queue access is performed without blocking. The consumer completely empties\r
- * the queue each time it runs so the producer should never find the queue full.\r
- *\r
- * An error is flagged if the consumer obtains an unexpected value or the producer\r
- * find the queue is full.\r
- */\r
-\r
-/*\r
-Changes from V2.0.0\r
-\r
- + Delay periods are now specified using variables and constants of\r
- portTickType rather than unsigned long.\r
-*/\r
-\r
-#include <stdlib.h>\r
-\r
-/* Scheduler include files. */\r
-#include "FreeRTOS.h"\r
-#include "task.h"\r
-#include "queue.h"\r
-\r
-/* Demo program include files. */\r
-#include "PollQ.h"\r
-\r
-#define pollqSTACK_SIZE configMINIMAL_STACK_SIZE\r
-#define pollqQUEUE_SIZE ( 10 )\r
-#define pollqPRODUCER_DELAY ( ( portTickType ) 200 / portTICK_RATE_MS )\r
-#define pollqCONSUMER_DELAY ( pollqPRODUCER_DELAY - ( portTickType ) ( 20 / portTICK_RATE_MS ) )\r
-#define pollqNO_DELAY ( ( portTickType ) 0 )\r
-#define pollqVALUES_TO_PRODUCE ( ( signed portBASE_TYPE ) 3 )\r
-#define pollqINITIAL_VALUE ( ( signed portBASE_TYPE ) 0 )\r
-\r
-/* The task that posts the incrementing number onto the queue. */\r
-static portTASK_FUNCTION_PROTO( vPolledQueueProducer, pvParameters );\r
-\r
-/* The task that empties the queue. */\r
-static portTASK_FUNCTION_PROTO( vPolledQueueConsumer, pvParameters );\r
-\r
-/* Variables that are used to check that the tasks are still running with no\r
-errors. */\r
-static volatile signed portBASE_TYPE xPollingConsumerCount = pollqINITIAL_VALUE, xPollingProducerCount = pollqINITIAL_VALUE;\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-void vStartPolledQueueTasks( unsigned portBASE_TYPE uxPriority )\r
-{\r
-static xQueueHandle xPolledQueue;\r
-\r
- /* Create the queue used by the producer and consumer. */\r
- xPolledQueue = xQueueCreate( pollqQUEUE_SIZE, ( unsigned portBASE_TYPE ) sizeof( unsigned short ) );\r
-\r
- /* vQueueAddToRegistry() adds the queue to the queue registry, if one is\r
- in use. The queue registry is provided as a means for kernel aware \r
- debuggers to locate queues and has no purpose if a kernel aware debugger\r
- is not being used. The call to vQueueAddToRegistry() will be removed\r
- by the pre-processor if configQUEUE_REGISTRY_SIZE is not defined or is \r
- defined to be less than 1. */\r
- vQueueAddToRegistry( xPolledQueue, ( signed char * ) "Poll_Test_Queue" );\r
-\r
- /* Spawn the producer and consumer. */\r
- xTaskCreate( vPolledQueueConsumer, ( signed char * ) "QConsNB", pollqSTACK_SIZE, ( void * ) &xPolledQueue, uxPriority, ( xTaskHandle * ) NULL );\r
- xTaskCreate( vPolledQueueProducer, ( signed char * ) "QProdNB", pollqSTACK_SIZE, ( void * ) &xPolledQueue, uxPriority, ( xTaskHandle * ) NULL );\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static portTASK_FUNCTION( vPolledQueueProducer, pvParameters )\r
-{\r
-unsigned short usValue = ( unsigned short ) 0;\r
-signed portBASE_TYPE xError = pdFALSE, xLoop;\r
-\r
- for( ;; )\r
- { \r
- for( xLoop = 0; xLoop < pollqVALUES_TO_PRODUCE; xLoop++ )\r
- {\r
- /* Send an incrementing number on the queue without blocking. */\r
- if( xQueueSend( *( ( xQueueHandle * ) pvParameters ), ( void * ) &usValue, pollqNO_DELAY ) != pdPASS )\r
- {\r
- /* We should never find the queue full so if we get here there\r
- has been an error. */\r
- xError = pdTRUE;\r
- }\r
- else\r
- {\r
- if( xError == pdFALSE )\r
- {\r
- /* If an error has ever been recorded we stop incrementing the\r
- check variable. */\r
- portENTER_CRITICAL();\r
- xPollingProducerCount++;\r
- portEXIT_CRITICAL();\r
- }\r
-\r
- /* Update the value we are going to post next time around. */\r
- usValue++;\r
- }\r
- }\r
-\r
- /* Wait before we start posting again to ensure the consumer runs and\r
- empties the queue. */\r
- vTaskDelay( pollqPRODUCER_DELAY );\r
- }\r
-} /*lint !e818 Function prototype must conform to API. */\r
-/*-----------------------------------------------------------*/\r
-\r
-static portTASK_FUNCTION( vPolledQueueConsumer, pvParameters )\r
-{\r
-unsigned short usData, usExpectedValue = ( unsigned short ) 0;\r
-signed portBASE_TYPE xError = pdFALSE;\r
-\r
- for( ;; )\r
- { \r
- /* Loop until the queue is empty. */\r
- while( uxQueueMessagesWaiting( *( ( xQueueHandle * ) pvParameters ) ) )\r
- {\r
- if( xQueueReceive( *( ( xQueueHandle * ) pvParameters ), &usData, pollqNO_DELAY ) == pdPASS )\r
- {\r
- if( usData != usExpectedValue )\r
- {\r
- /* This is not what we expected to receive so an error has\r
- occurred. */\r
- xError = pdTRUE;\r
-\r
- /* Catch-up to the value we received so our next expected\r
- value should again be correct. */\r
- usExpectedValue = usData;\r
- }\r
- else\r
- {\r
- if( xError == pdFALSE )\r
- {\r
- /* Only increment the check variable if no errors have\r
- occurred. */\r
- portENTER_CRITICAL();\r
- xPollingConsumerCount++;\r
- portEXIT_CRITICAL();\r
- }\r
- }\r
-\r
- /* Next time round we would expect the number to be one higher. */\r
- usExpectedValue++;\r
- }\r
- }\r
-\r
- /* Now the queue is empty we block, allowing the producer to place more\r
- items in the queue. */\r
- vTaskDelay( pollqCONSUMER_DELAY );\r
- }\r
-} /*lint !e818 Function prototype must conform to API. */\r
-/*-----------------------------------------------------------*/\r
-\r
-/* This is called to check that all the created tasks are still running with no errors. */\r
-portBASE_TYPE xArePollingQueuesStillRunning( void )\r
-{\r
-portBASE_TYPE xReturn;\r
-\r
- /* Check both the consumer and producer poll count to check they have both\r
- been changed since out last trip round. We do not need a critical section\r
- around the check variables as this is called from a higher priority than\r
- the other tasks that access the same variables. */\r
- if( ( xPollingConsumerCount == pollqINITIAL_VALUE ) ||\r
- ( xPollingProducerCount == pollqINITIAL_VALUE )\r
- )\r
- {\r
- xReturn = pdFALSE;\r
- }\r
- else\r
- {\r
- xReturn = pdTRUE;\r
- }\r
-\r
- /* Set the check variables back down so we know if they have been\r
- incremented the next time around. */\r
- xPollingConsumerCount = pollqINITIAL_VALUE;\r
- xPollingProducerCount = pollqINITIAL_VALUE;\r
-\r
- return xReturn;\r
-}\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-#ifndef POLLED_Q_H\r
-#define POLLED_Q_H\r
-\r
-void vStartPolledQueueTasks( unsigned portBASE_TYPE uxPriority );\r
-portBASE_TYPE xArePollingQueuesStillRunning( void );\r
-\r
-#endif\r
-\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.0.2 - Copyright (C) 2011 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
-\r
- http://www.FreeRTOS.org - Documentation, latest information, license and\r
- contact details.\r
-\r
- http://www.SafeRTOS.com - A version that is certified for use in safety\r
- critical systems.\r
-\r
- http://www.OpenRTOS.com - Commercial support, development, porting,\r
- licensing and training services.\r
-*/\r
-\r
-\r
-/*\r
- * Tests the behaviour of timers. Some timers are created before the scheduler\r
- * is started, and some after.\r
- */\r
-\r
-/* Standard includes. */\r
-#include <string.h>\r
-\r
-/* Scheduler include files. */\r
-#include "FreeRTOS.h"\r
-#include "task.h"\r
-#include "timers.h"\r
-\r
-/* Demo program include files. */\r
-#include "TimerDemo.h"\r
-\r
-#if ( configTIMER_TASK_PRIORITY < 1 )\r
- #error configTIMER_TASK_PRIORITY must be set to at least 1 for this test/demo to function correctly.\r
-#endif\r
-\r
-#define tmrdemoDONT_BLOCK ( ( portTickType ) 0 )\r
-#define tmrdemoONE_SHOT_TIMER_PERIOD ( xBasePeriod * ( portTickType ) 3 )\r
-#define trmdemoNUM_TIMER_RESETS ( ( unsigned char ) 10 )\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-/* The callback functions used by the timers. These each increment a counter\r
-to indicate which timer has expired. The auto-reload timers that are used by\r
-the test task (as opposed to being used from an ISR) all share the same\r
-prvAutoReloadTimerCallback() callback function, and use the ID of the\r
-pxExpiredTimer parameter passed into that function to know which counter to\r
-increment. The other timers all have their own unique callback function and\r
-simply increment their counters without using the callback function parameter. */\r
-static void prvAutoReloadTimerCallback( xTimerHandle pxExpiredTimer );\r
-static void prvOneShotTimerCallback( xTimerHandle pxExpiredTimer );\r
-static void prvTimerTestTask( void *pvParameters );\r
-static void prvISRAutoReloadTimerCallback( xTimerHandle pxExpiredTimer );\r
-static void prvISROneShotTimerCallback( xTimerHandle pxExpiredTimer );\r
-\r
-/* The test functions used by the timer test task. These manipulate the auto\r
-reload and one shot timers in various ways, then delay, then inspect the timers\r
-to ensure they have behaved as expected. */\r
-static void prvTest1_CreateTimersWithoutSchedulerRunning( void );\r
-static void prvTest2_CheckTaskAndTimersInitialState( void );\r
-static void prvTest3_CheckAutoReloadExpireRates( void );\r
-static void prvTest4_CheckAutoReloadTimersCanBeStopped( void );\r
-static void prvTest5_CheckBasicOneShotTimerBehaviour( void );\r
-static void prvTest6_CheckAutoReloadResetBehaviour( void );\r
-static void prvResetStartConditionsForNextIteration( void );\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-/* Flag that will be latched to pdFAIL should any unexpected behaviour be\r
-detected in any of the demo tests. */\r
-static volatile portBASE_TYPE xTestStatus = pdPASS;\r
-\r
-/* Counter that is incremented on each cycle of a test. This is used to\r
-detect a stalled task - a test that is no longer running. */\r
-static volatile unsigned long ulLoopCounter = 0;\r
-\r
-/* A set of auto reload timers - each of which use the same callback function.\r
-The callback function uses the timer ID to index into, and then increment, a\r
-counter in the ucAutoReloadTimerCounters[] array. The auto reload timers\r
-referenced from xAutoReloadTimers[] are used by the prvTimerTestTask task. */\r
-static xTimerHandle xAutoReloadTimers[ configTIMER_QUEUE_LENGTH + 1 ] = { 0 };\r
-static unsigned char ucAutoReloadTimerCounters[ configTIMER_QUEUE_LENGTH + 1 ] = { 0 };\r
-\r
-/* The one shot timer is configured to use a callback function that increments\r
-ucOneShotTimerCounter each time it gets called. */\r
-static xTimerHandle xOneShotTimer = NULL;\r
-static unsigned char ucOneShotTimerCounter = ( unsigned char ) 0;\r
-\r
-/* The ISR reload timer is controlled from the tick hook to exercise the timer\r
-API functions that can be used from an ISR. It is configured to increment\r
-ucISRReloadTimerCounter each time its callback function is executed. */\r
-static xTimerHandle xISRAutoReloadTimer = NULL;\r
-static unsigned char ucISRAutoReloadTimerCounter = ( unsigned char ) 0;\r
-\r
-/* The ISR one shot timer is controlled from the tick hook to exercise the timer\r
-API functions that can be used from an ISR. It is configured to increment\r
-ucISRReloadTimerCounter each time its callback function is executed. */\r
-static xTimerHandle xISROneShotTimer = NULL;\r
-static unsigned char ucISROneShotTimerCounter = ( unsigned char ) 0;\r
-\r
-/* The period of all the timers are a multiple of the base period. The base\r
-period is configured by the parameter to vStartTimerDemoTask(). */\r
-static portTickType xBasePeriod = 0;\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-void vStartTimerDemoTask( portTickType xBasePeriodIn )\r
-{\r
- /* Start with the timer and counter arrays clear - this is only necessary\r
- where the compiler does not clear them automatically on start up. */\r
- memset( ucAutoReloadTimerCounters, 0x00, sizeof( ucAutoReloadTimerCounters ) );\r
- memset( xAutoReloadTimers, 0x00, sizeof( xAutoReloadTimers ) );\r
-\r
- /* Store the period from which all the timer periods will be generated from\r
- (multiples of). */\r
- xBasePeriod = xBasePeriodIn;\r
-\r
- /* Create a set of timers for use by this demo/test. */\r
- prvTest1_CreateTimersWithoutSchedulerRunning();\r
-\r
- /* Create the task that will control and monitor the timers. This is\r
- created at a lower priority than the timer service task to ensure, as\r
- far as it is concerned, commands on timers are actioned immediately\r
- (sending a command to the timer service task will unblock the timer service\r
- task, which will then preempt this task). */\r
- if( xTestStatus != pdFAIL )\r
- {\r
- xTaskCreate( prvTimerTestTask, ( signed portCHAR * ) "Tmr Tst", configMINIMAL_STACK_SIZE, NULL, configTIMER_TASK_PRIORITY - 1, NULL );\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvTimerTestTask( void *pvParameters )\r
-{\r
- ( void ) pvParameters;\r
-\r
- /* Create a one-shot timer for use later on in this test. */\r
- xOneShotTimer = xTimerCreate( ( const signed char * ) "Oneshot Timer",/* Text name to facilitate debugging. The kernel does not use this itself. */\r
- tmrdemoONE_SHOT_TIMER_PERIOD, /* The period for the timer. */\r
- pdFALSE, /* Don't auto-reload - hence a one shot timer. */\r
- ( void * ) 0, /* The timer identifier. In this case this is not used as the timer has its own callback. */\r
- prvOneShotTimerCallback ); /* The callback to be called when the timer expires. */\r
-\r
- if( xOneShotTimer == NULL )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
-\r
-\r
- /* Ensure all the timers are in their expected initial state. This\r
- depends on the timer service task having a higher priority than this task. */\r
- prvTest2_CheckTaskAndTimersInitialState();\r
-\r
- for( ;; )\r
- {\r
- /* Check the auto reload timers expire at the expected/correct rates. */\r
- prvTest3_CheckAutoReloadExpireRates();\r
-\r
- /* Check the auto reload timers can be stopped correctly, and correctly\r
- report their state. */\r
- prvTest4_CheckAutoReloadTimersCanBeStopped();\r
- \r
- /* Check the one shot timer only calls its callback once after it has been\r
- started, and that it reports its state correctly. */\r
- prvTest5_CheckBasicOneShotTimerBehaviour();\r
-\r
- /* Check timer reset behaviour. */\r
- prvTest6_CheckAutoReloadResetBehaviour();\r
-\r
- /* Start the timers again to restart all the tests over again. */\r
- prvResetStartConditionsForNextIteration();\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-/* This is called to check that the created task is still running and has not\r
-detected any errors. */\r
-portBASE_TYPE xAreTimerDemoTasksStillRunning( portTickType xCycleFrequency )\r
-{\r
-static unsigned long ulLastLoopCounter = 0UL;\r
-portTickType xMaxBlockTimeUsedByTheseTests, xLoopCounterIncrementTimeMax;\r
-static portTickType xIterationsWithoutCounterIncrement = ( portTickType ) 0, xLastCycleFrequency;\r
-\r
- if( xLastCycleFrequency != xCycleFrequency )\r
- {\r
- /* The cycle frequency has probably become much faster due to an error\r
- elsewhere. Start counting Iterations again. */\r
- xIterationsWithoutCounterIncrement = ( portTickType ) 0;\r
- xLastCycleFrequency = xCycleFrequency;\r
- } \r
-\r
- /* Calculate the maximum number of times that it is permissible for this\r
- function to be called without ulLoopCounter being incremented. This is\r
- necessary because the tests in this file block for extended periods, and the\r
- block period might be longer than the time between calls to this function. */\r
- xMaxBlockTimeUsedByTheseTests = ( ( portTickType ) configTIMER_QUEUE_LENGTH ) * xBasePeriod;\r
- xLoopCounterIncrementTimeMax = xMaxBlockTimeUsedByTheseTests / xCycleFrequency;\r
-\r
- /* If the demo task is still running then we expect the loopcounter to\r
- have incremented every xLoopCounterIncrementTimeMax calls. */\r
- if( ulLastLoopCounter == ulLoopCounter )\r
- {\r
- xIterationsWithoutCounterIncrement++;\r
- if( xIterationsWithoutCounterIncrement > xLoopCounterIncrementTimeMax )\r
- {\r
- /* The tests appear to be no longer running (stalled). */\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- }\r
- else\r
- {\r
- /* ulLoopCounter changed, so the count of times this function was called\r
- without a change can be reset to zero. */\r
- xIterationsWithoutCounterIncrement = ( portTickType ) 0;\r
- }\r
-\r
- ulLastLoopCounter = ulLoopCounter;\r
-\r
- /* Errors detected in the task itself will have latched xTestStatus\r
- to pdFAIL. */\r
-\r
- return xTestStatus;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvTest1_CreateTimersWithoutSchedulerRunning( void )\r
-{\r
-unsigned portBASE_TYPE xTimer;\r
-\r
- for( xTimer = 0; xTimer < configTIMER_QUEUE_LENGTH; xTimer++ )\r
- {\r
- /* As the timer queue is not yet full, it should be possible to both create\r
- and start a timer. These timers are being started before the scheduler has\r
- been started, so their block times should get set to zero within the timer\r
- API itself. */\r
- xAutoReloadTimers[ xTimer ] = xTimerCreate( ( const signed char * )"FR Timer", /* Text name to facilitate debugging. The kernel does not use this itself. */\r
- ( ( xTimer + ( portTickType ) 1 ) * xBasePeriod ),/* The period for the timer. The plus 1 ensures a period of zero is not specified. */\r
- pdTRUE, /* Auto-reload is set to true. */\r
- ( void * ) xTimer, /* An identifier for the timer as all the auto reload timers use the same callback. */\r
- prvAutoReloadTimerCallback ); /* The callback to be called when the timer expires. */\r
-\r
- if( xAutoReloadTimers[ xTimer ] == NULL )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- else\r
- {\r
- /* The scheduler has not yet started, so the block period of\r
- portMAX_DELAY should just get set to zero in xTimerStart(). Also,\r
- the timer queue is not yet full so xTimerStart() should return\r
- pdPASS. */\r
- if( xTimerStart( xAutoReloadTimers[ xTimer ], portMAX_DELAY ) != pdPASS )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- }\r
- }\r
-\r
- /* The timers queue should now be full, so it should be possible to create\r
- another timer, but not possible to start it (the timer queue will not get\r
- drained until the scheduler has been started. */\r
- xAutoReloadTimers[ configTIMER_QUEUE_LENGTH ] = xTimerCreate( ( const signed char * ) "FR Timer", /* Text name to facilitate debugging. The kernel does not use this itself. */\r
- ( configTIMER_QUEUE_LENGTH * xBasePeriod ), /* The period for the timer. */\r
- pdTRUE, /* Auto-reload is set to true. */\r
- ( void * ) xTimer, /* An identifier for the timer as all the auto reload timers use the same callback. */\r
- prvAutoReloadTimerCallback ); /* The callback executed when the timer expires. */\r
-\r
- if( xAutoReloadTimers[ configTIMER_QUEUE_LENGTH ] == NULL )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- else\r
- {\r
- if( xTimerStart( xAutoReloadTimers[ xTimer ], portMAX_DELAY ) == pdPASS )\r
- {\r
- /* This time it would not be expected that the timer could be\r
- started at this point. */\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- }\r
- \r
- /* Create the timers that are used from the tick interrupt to test the timer\r
- API functions that can be called from an ISR. */\r
- xISRAutoReloadTimer = xTimerCreate( ( const signed char * ) "ISR AR", /* The text name given to the timer. */\r
- 0xffff, /* The timer is not given a period yet - this will be done from the tick hook, but a period of 0 is invalid. */\r
- pdTRUE, /* This is an auto reload timer. */\r
- ( void * ) NULL, /* The identifier is not required. */\r
- prvISRAutoReloadTimerCallback ); /* The callback that is executed when the timer expires. */\r
-\r
- xISROneShotTimer = xTimerCreate( ( const signed char * ) "ISR OS", /* The text name given to the timer. */\r
- 0xffff, /* The timer is not given a period yet - this will be done from the tick hook, but a period of 0 is invalid. */\r
- pdFALSE, /* This is a one shot timer. */\r
- ( void * ) NULL, /* The identifier is not required. */\r
- prvISROneShotTimerCallback ); /* The callback that is executed when the timer expires. */\r
- \r
- if( ( xISRAutoReloadTimer == NULL ) || ( xISROneShotTimer == NULL ) )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvTest2_CheckTaskAndTimersInitialState( void )\r
-{\r
-unsigned char ucTimer;\r
-\r
- /* Ensure all the timers are in their expected initial state. This depends\r
- on the timer service task having a higher priority than this task.\r
-\r
- auto reload timers 0 to ( configTIMER_QUEUE_LENGTH - 1 ) should now be active,\r
- and auto reload timer configTIMER_QUEUE_LENGTH should not yet be active (it\r
- could not be started prior to the scheduler being started when it was\r
- created). */\r
- for( ucTimer = 0; ucTimer < ( unsigned char ) configTIMER_QUEUE_LENGTH; ucTimer++ )\r
- {\r
- if( xTimerIsTimerActive( xAutoReloadTimers[ ucTimer ] ) == pdFALSE )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- }\r
-\r
- if( xTimerIsTimerActive( xAutoReloadTimers[ configTIMER_QUEUE_LENGTH ] ) != pdFALSE )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvTest3_CheckAutoReloadExpireRates( void )\r
-{\r
-unsigned char ucMaxAllowableValue, ucMinAllowableValue, ucTimer;\r
-portTickType xBlockPeriod, xTimerPeriod, xExpectedNumber;\r
-\r
- /* Check the auto reload timers expire at the expected rates. */\r
-\r
- \r
- /* Delaying for configTIMER_QUEUE_LENGTH * xBasePeriod ticks should allow\r
- all the auto reload timers to expire at least once. */\r
- xBlockPeriod = ( ( portTickType ) configTIMER_QUEUE_LENGTH ) * xBasePeriod;\r
- vTaskDelay( xBlockPeriod );\r
-\r
- /* Check that all the auto reload timers have called their callback \r
- function the expected number of times. */\r
- for( ucTimer = 0; ucTimer < ( unsigned char ) configTIMER_QUEUE_LENGTH; ucTimer++ )\r
- {\r
- /* The expected number of expiries is equal to the block period divided\r
- by the timer period. */\r
- xTimerPeriod = ( ( ( portTickType ) ucTimer + ( portTickType ) 1 ) * xBasePeriod );\r
- xExpectedNumber = xBlockPeriod / xTimerPeriod;\r
- \r
- ucMaxAllowableValue = ( ( unsigned char ) xExpectedNumber ) ;\r
- ucMinAllowableValue = ( ( unsigned char ) xExpectedNumber - ( unsigned char ) 1 );\r
-\r
- if( ( ucAutoReloadTimerCounters[ ucTimer ] < ucMinAllowableValue ) ||\r
- ( ucAutoReloadTimerCounters[ ucTimer ] > ucMaxAllowableValue )\r
- )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- }\r
-\r
- if( xTestStatus == pdPASS )\r
- {\r
- /* No errors have been reported so increment the loop counter so the\r
- check task knows this task is still running. */\r
- ulLoopCounter++;\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvTest4_CheckAutoReloadTimersCanBeStopped( void )\r
-{ \r
-unsigned char ucTimer;\r
-\r
- /* Check the auto reload timers can be stopped correctly, and correctly\r
- report their state. */\r
-\r
- /* Stop all the active timers. */\r
- for( ucTimer = 0; ucTimer < ( unsigned char ) configTIMER_QUEUE_LENGTH; ucTimer++ )\r
- {\r
- /* The timer has not been stopped yet! */\r
- if( xTimerIsTimerActive( xAutoReloadTimers[ ucTimer ] ) == pdFALSE )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
-\r
- /* Now stop the timer. This will appear to happen immediately to\r
- this task because this task is running at a priority below the\r
- timer service task. */\r
- xTimerStop( xAutoReloadTimers[ ucTimer ], tmrdemoDONT_BLOCK );\r
-\r
- /* The timer should now be inactive. */\r
- if( xTimerIsTimerActive( xAutoReloadTimers[ ucTimer ] ) != pdFALSE )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- }\r
-\r
- taskENTER_CRITICAL();\r
- {\r
- /* The timer in array position configTIMER_QUEUE_LENGTH should not\r
- be active. The critical section is used to ensure the timer does\r
- not call its callback between the next line running and the array\r
- being cleared back to zero, as that would mask an error condition. */\r
- if( ucAutoReloadTimerCounters[ configTIMER_QUEUE_LENGTH ] != ( unsigned char ) 0 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
-\r
- /* Clear the timer callback count. */\r
- memset( ( void * ) ucAutoReloadTimerCounters, 0, sizeof( ucAutoReloadTimerCounters ) );\r
- }\r
- taskEXIT_CRITICAL();\r
-\r
- /* The timers are now all inactive, so this time, after delaying, none\r
- of the callback counters should have incremented. */\r
- vTaskDelay( ( ( portTickType ) configTIMER_QUEUE_LENGTH ) * xBasePeriod );\r
- for( ucTimer = 0; ucTimer < ( unsigned char ) configTIMER_QUEUE_LENGTH; ucTimer++ )\r
- {\r
- if( ucAutoReloadTimerCounters[ ucTimer ] != ( unsigned char ) 0 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- }\r
-\r
- if( xTestStatus == pdPASS )\r
- {\r
- /* No errors have been reported so increment the loop counter so\r
- the check task knows this task is still running. */\r
- ulLoopCounter++;\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvTest5_CheckBasicOneShotTimerBehaviour( void )\r
-{\r
- /* Check the one shot timer only calls its callback once after it has been\r
- started, and that it reports its state correctly. */\r
-\r
- /* The one shot timer should not be active yet. */\r
- if( xTimerIsTimerActive( xOneShotTimer ) != pdFALSE )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
-\r
- if( ucOneShotTimerCounter != ( unsigned char ) 0 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
-\r
- /* Start the one shot timer and check that it reports its state correctly. */\r
- xTimerStart( xOneShotTimer, tmrdemoDONT_BLOCK );\r
- if( xTimerIsTimerActive( xOneShotTimer ) == pdFALSE )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
-\r
- /* Delay for three times as long as the one shot timer period, then check\r
- to ensure it has only called its callback once, and is now not in the\r
- active state. */\r
- vTaskDelay( tmrdemoONE_SHOT_TIMER_PERIOD * ( portTickType ) 3 );\r
-\r
- if( xTimerIsTimerActive( xOneShotTimer ) != pdFALSE )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
-\r
- if( ucOneShotTimerCounter != ( unsigned char ) 1 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- else\r
- {\r
- /* Reset the one shot timer callback count. */\r
- ucOneShotTimerCounter = ( unsigned char ) 0;\r
- }\r
-\r
- if( xTestStatus == pdPASS )\r
- {\r
- /* No errors have been reported so increment the loop counter so the\r
- check task knows this task is still running. */\r
- ulLoopCounter++;\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvTest6_CheckAutoReloadResetBehaviour( void )\r
-{\r
-unsigned char ucTimer;\r
-\r
- /* Check timer reset behaviour. */\r
-\r
- /* Restart the one shot timer and check it reports its status correctly. */\r
- xTimerStart( xOneShotTimer, tmrdemoDONT_BLOCK );\r
- if( xTimerIsTimerActive( xOneShotTimer ) == pdFALSE )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
-\r
- /* Restart one of the auto reload timers and check that it reports its\r
- status correctly. */\r
- xTimerStart( xAutoReloadTimers[ configTIMER_QUEUE_LENGTH - 1 ], tmrdemoDONT_BLOCK );\r
- if( xTimerIsTimerActive( xAutoReloadTimers[ configTIMER_QUEUE_LENGTH - 1 ] ) == pdFALSE )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
-\r
- for( ucTimer = 0; ucTimer < trmdemoNUM_TIMER_RESETS; ucTimer++ )\r
- {\r
- /* Delay for half as long as the one shot timer period, then reset it.\r
- It should never expire while this is done, so its callback count should\r
- never increment. */\r
- vTaskDelay( tmrdemoONE_SHOT_TIMER_PERIOD / 2 );\r
-\r
- /* Check both running timers are still active, but have not called their\r
- callback functions. */\r
- if( xTimerIsTimerActive( xOneShotTimer ) == pdFALSE )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
-\r
- if( ucOneShotTimerCounter != ( unsigned char ) 0 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
-\r
- if( xTimerIsTimerActive( xAutoReloadTimers[ configTIMER_QUEUE_LENGTH - 1 ] ) == pdFALSE )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
-\r
- if( ucAutoReloadTimerCounters[ configTIMER_QUEUE_LENGTH - 1 ] != ( unsigned char ) 0 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
-\r
- /* Reset both running timers. */\r
- xTimerReset( xOneShotTimer, tmrdemoDONT_BLOCK );\r
- xTimerReset( xAutoReloadTimers[ configTIMER_QUEUE_LENGTH - 1 ], tmrdemoDONT_BLOCK );\r
-\r
- if( xTestStatus == pdPASS )\r
- {\r
- /* No errors have been reported so increment the loop counter so\r
- the check task knows this task is still running. */\r
- ulLoopCounter++;\r
- }\r
- }\r
-\r
- /* Finally delay long enough for both running timers to expire. */\r
- vTaskDelay( ( ( portTickType ) configTIMER_QUEUE_LENGTH ) * xBasePeriod );\r
-\r
- /* The timers were not reset during the above delay period so should now\r
- both have called their callback functions. */\r
- if( ucOneShotTimerCounter != ( unsigned char ) 1 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
-\r
- if( ucAutoReloadTimerCounters[ configTIMER_QUEUE_LENGTH - 1 ] == 0 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
-\r
- /* The one shot timer should no longer be active, while the auto reload\r
- timer should still be active. */\r
- if( xTimerIsTimerActive( xAutoReloadTimers[ configTIMER_QUEUE_LENGTH - 1 ] ) == pdFALSE )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
-\r
- if( xTimerIsTimerActive( xOneShotTimer ) == pdTRUE )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
-\r
- /* Stop the auto reload timer again. */\r
- xTimerStop( xAutoReloadTimers[ configTIMER_QUEUE_LENGTH - 1 ], tmrdemoDONT_BLOCK );\r
-\r
- if( xTimerIsTimerActive( xAutoReloadTimers[ configTIMER_QUEUE_LENGTH - 1 ] ) != pdFALSE )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
-\r
- /* Clear the timer callback counts, ready for another iteration of these\r
- tests. */\r
- ucAutoReloadTimerCounters[ configTIMER_QUEUE_LENGTH - 1 ] = ( unsigned char ) 0;\r
- ucOneShotTimerCounter = ( unsigned char ) 0;\r
-\r
- if( xTestStatus == pdPASS )\r
- {\r
- /* No errors have been reported so increment the loop counter so the check\r
- task knows this task is still running. */\r
- ulLoopCounter++;\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvResetStartConditionsForNextIteration( void )\r
-{\r
-unsigned char ucTimer;\r
-\r
- /* Start the timers again to start all the tests over again. */\r
-\r
- /* Start the timers again. */\r
- for( ucTimer = 0; ucTimer < ( unsigned char ) configTIMER_QUEUE_LENGTH; ucTimer++ )\r
- {\r
- /* The timer has not been started yet! */\r
- if( xTimerIsTimerActive( xAutoReloadTimers[ ucTimer ] ) != pdFALSE )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
-\r
- /* Now start the timer. This will appear to happen immediately to\r
- this task because this task is running at a priority below the timer\r
- service task. */\r
- xTimerStart( xAutoReloadTimers[ ucTimer ], tmrdemoDONT_BLOCK );\r
-\r
- /* The timer should now be active. */\r
- if( xTimerIsTimerActive( xAutoReloadTimers[ ucTimer ] ) == pdFALSE )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- }\r
-\r
- if( xTestStatus == pdPASS )\r
- {\r
- /* No errors have been reported so increment the loop counter so the\r
- check task knows this task is still running. */\r
- ulLoopCounter++;\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-void vTimerPeriodicISRTests( void )\r
-{\r
-static portTickType uxTick = ( portTickType ) -1;\r
-\r
-/* The xHigherPriorityTaskWoken parameter is not used in this case as this\r
-function is called from the tick hook anyway. However the API required it\r
-to be present. */\r
-portBASE_TYPE xHigherPriorityTaskWoken = pdTRUE;\r
-portTickType xMargin;\r
-\r
- if( configTIMER_TASK_PRIORITY != ( configMAX_PRIORITIES - 1 ) )\r
- {\r
- /* The timer service task is not the highest priority task, so it cannot\r
- be assumed that timings will be exact. Timers should never call their\r
- callback before their expiry time, but a margin is permissible for calling\r
- their callback after their expiry time. If exact timing is required then\r
- configTIMER_TASK_PRIORITY must be set to ensure the timer service task\r
- is the highest priority task in the system. */\r
- xMargin = 5;\r
- }\r
- else\r
- {\r
- xMargin = 1;\r
- }\r
-\r
- /* This test is called from the tick ISR even when the scheduler is suspended.\r
- Therefore, it is possible for the xTickCount to be temporarily less than the\r
- uxTicks count maintained in this function. That can result in calculated\r
- unblock times being too short, as this function is not called as missed ticks\r
- (ticks that occur while the scheduler is suspended) are unwound to re-instate\r
- the real tick value. Therefore, if this happens, just abandon the test\r
- and start again. */\r
- if( xTaskGetSchedulerState() != taskSCHEDULER_RUNNING )\r
- {\r
- uxTick = ( portTickType ) -1;\r
- }\r
- else\r
- {\r
- uxTick++;\r
- }\r
-\r
- if( uxTick == 0 )\r
- {\r
- /* The timers will have been created, but not started. Start them\r
- now by setting their period. */\r
- ucISRAutoReloadTimerCounter = 0;\r
- ucISROneShotTimerCounter = 0;\r
- xTimerChangePeriodFromISR( xISRAutoReloadTimer, xBasePeriod, &xHigherPriorityTaskWoken );\r
- xTimerChangePeriodFromISR( xISROneShotTimer, xBasePeriod, &xHigherPriorityTaskWoken );\r
- }\r
- else if( uxTick == xBasePeriod )\r
- {\r
- /* Neither timer should have expired yet. */\r
- if( ( ucISRAutoReloadTimerCounter != 0 ) || ( ucISROneShotTimerCounter != 0 ) )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- }\r
- else if( uxTick == ( xBasePeriod + xMargin ) )\r
- {\r
- /* Both timers should now have expired once. The auto reload timer will\r
- still be active, but the one shot timer should now have stopped. */\r
- if( ( ucISRAutoReloadTimerCounter != 1 ) || ( ucISROneShotTimerCounter != 1 ) )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- }\r
- else if( uxTick == ( 2 * xBasePeriod ) )\r
- {\r
- /* The auto reload timer will still be active, but the one shot timer\r
- should now have stopped - however, at this time neither of the timers\r
- should have expired again since the last test. */\r
- if( ( ucISRAutoReloadTimerCounter != 1 ) || ( ucISROneShotTimerCounter != 1 ) )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- } \r
- }\r
- else if( uxTick == ( ( 2 * xBasePeriod ) + xMargin ) )\r
- {\r
- /* The auto reload timer will still be active, but the one shot timer\r
- should now have stopped. At this time the auto reload timer should have\r
- expired again, but the one shot timer count should not have changed. */\r
- if( ucISRAutoReloadTimerCounter != 2 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- \r
- if( ucISROneShotTimerCounter != 1 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- }\r
- else if( uxTick == ( ( 2 * xBasePeriod ) + ( xBasePeriod >> ( portTickType ) 2U ) ) )\r
- {\r
- /* The auto reload timer will still be active, but the one shot timer\r
- should now have stopped. Again though, at this time, neither timer call\r
- back should have been called since the last test. */\r
- if( ucISRAutoReloadTimerCounter != 2 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- \r
- if( ucISROneShotTimerCounter != 1 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- } \r
- else if( uxTick == ( 3 * xBasePeriod ) )\r
- {\r
- /* Start the one shot timer again. */\r
- xTimerStartFromISR( xISROneShotTimer, &xHigherPriorityTaskWoken );\r
- }\r
- else if( uxTick == ( ( 3 * xBasePeriod ) + xMargin ) )\r
- {\r
- /* The auto reload timer and one shot timer will be active. At\r
- this time the auto reload timer should have expired again, but the one\r
- shot timer count should not have changed yet. */\r
- if( ucISRAutoReloadTimerCounter != 3 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- \r
- if( ucISROneShotTimerCounter != 1 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- \r
- /* Now stop the auto reload timer. The one shot timer was started\r
- a few ticks ago. */\r
- xTimerStopFromISR( xISRAutoReloadTimer, &xHigherPriorityTaskWoken );\r
- } \r
- else if( uxTick == ( 4 * xBasePeriod ) )\r
- {\r
- /* The auto reload timer is now stopped, and the one shot timer is\r
- active, but at this time neither timer should have expired since the\r
- last test. */\r
- if( ucISRAutoReloadTimerCounter != 3 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- \r
- if( ucISROneShotTimerCounter != 1 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- } \r
- else if( uxTick == ( ( 4 * xBasePeriod ) + xMargin ) )\r
- {\r
- /* The auto reload timer is now stopped, and the one shot timer is\r
- active. The one shot timer should have expired again, but the auto\r
- reload timer should not have executed its callback. */\r
- if( ucISRAutoReloadTimerCounter != 3 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- \r
- if( ucISROneShotTimerCounter != 2 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- } \r
- else if( uxTick == ( ( 8 * xBasePeriod ) + xMargin ) )\r
- {\r
- /* The auto reload timer is now stopped, and the one shot timer has\r
- already expired and then stopped itself. Both callback counters should\r
- not have incremented since the last test. */\r
- if( ucISRAutoReloadTimerCounter != 3 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- \r
- if( ucISROneShotTimerCounter != 2 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- \r
- /* Now reset the one shot timer. */\r
- xTimerResetFromISR( xISROneShotTimer, &xHigherPriorityTaskWoken );\r
- } \r
- else if( uxTick == ( 9 * xBasePeriod ) )\r
- {\r
- /* Only the one shot timer should be running, but it should not have\r
- expired since the last test. Check the callback counters have not\r
- incremented, then reset the one shot timer again. */\r
- if( ucISRAutoReloadTimerCounter != 3 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- \r
- if( ucISROneShotTimerCounter != 2 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- \r
- xTimerResetFromISR( xISROneShotTimer, &xHigherPriorityTaskWoken );\r
- } \r
- else if( uxTick == ( 10 * xBasePeriod ) )\r
- {\r
- /* Only the one shot timer should be running, but it should not have\r
- expired since the last test. Check the callback counters have not\r
- incremented, then reset the one shot timer again. */\r
- if( ucISRAutoReloadTimerCounter != 3 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- \r
- if( ucISROneShotTimerCounter != 2 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- \r
- xTimerResetFromISR( xISROneShotTimer, &xHigherPriorityTaskWoken );\r
- }\r
- else if( uxTick == ( 11 * xBasePeriod ) )\r
- {\r
- /* Only the one shot timer should be running, but it should not have\r
- expired since the last test. Check the callback counters have not\r
- incremented, then reset the one shot timer once again. */\r
- if( ucISRAutoReloadTimerCounter != 3 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- \r
- if( ucISROneShotTimerCounter != 2 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- \r
- xTimerResetFromISR( xISROneShotTimer, &xHigherPriorityTaskWoken );\r
- } \r
- else if( uxTick == ( ( 12 * xBasePeriod ) + xMargin ) )\r
- {\r
- /* Only the one shot timer should have been running and this time it\r
- should have expired. Check its callback count has been incremented.\r
- The auto reload timer is still not running so should still have the same\r
- count value. This time the one shot timer is not reset so should not\r
- restart from its expiry period again. */\r
- if( ucISRAutoReloadTimerCounter != 3 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- \r
- if( ucISROneShotTimerCounter != 3 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- }\r
- else if( uxTick == ( 15 * xBasePeriod ) )\r
- {\r
- /* Neither timer should be running now. Check neither callback count\r
- has incremented, then go back to the start to run these tests all\r
- over again. */\r
- if( ucISRAutoReloadTimerCounter != 3 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- \r
- if( ucISROneShotTimerCounter != 3 )\r
- {\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
- \r
- uxTick = ( portTickType ) -1;\r
- } \r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-/*** Timer callback functions are defined below here. ***/\r
-\r
-static void prvAutoReloadTimerCallback( xTimerHandle pxExpiredTimer )\r
-{\r
-portBASE_TYPE xTimerID;\r
-\r
- xTimerID = ( portBASE_TYPE ) pvTimerGetTimerID( pxExpiredTimer );\r
- if( xTimerID <= ( configTIMER_QUEUE_LENGTH + 1 ) )\r
- {\r
- ( ucAutoReloadTimerCounters[ xTimerID ] )++;\r
- }\r
- else\r
- {\r
- /* The timer ID appears to be unexpected (invalid). */\r
- xTestStatus = pdFAIL;\r
- configASSERT( xTestStatus );\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvOneShotTimerCallback( xTimerHandle pxExpiredTimer )\r
-{\r
- /* The parameter is not used in this case as only one timer uses this\r
- callback function. */\r
- ( void ) pxExpiredTimer;\r
-\r
- ucOneShotTimerCounter++;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvISRAutoReloadTimerCallback( xTimerHandle pxExpiredTimer )\r
-{\r
- /* The parameter is not used in this case as only one timer uses this\r
- callback function. */\r
- ( void ) pxExpiredTimer;\r
-\r
- ucISRAutoReloadTimerCounter++;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvISROneShotTimerCallback( xTimerHandle pxExpiredTimer )\r
-{\r
- /* The parameter is not used in this case as only one timer uses this\r
- callback function. */\r
- ( void ) pxExpiredTimer;\r
-\r
- ucISROneShotTimerCounter++;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-\r
-\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.0.2 - Copyright (C) 2011 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
-\r
- http://www.FreeRTOS.org - Documentation, latest information, license and\r
- contact details.\r
-\r
- http://www.SafeRTOS.com - A version that is certified for use in safety\r
- critical systems.\r
-\r
- http://www.OpenRTOS.com - Commercial support, development, porting,\r
- licensing and training services.\r
-*/\r
-\r
-#ifndef TIMER_DEMO_H\r
-#define TIMER_DEMO_H\r
-\r
-void vStartTimerDemoTask( portTickType xBaseFrequencyIn );\r
-portBASE_TYPE xAreTimerDemoTasksStillRunning( portTickType xCycleFrequency );\r
-void vTimerPeriodicISRTests( void );\r
-\r
-#endif /* TIMER_DEMO_H */\r
-\r
-\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-/*\r
- * This file contains some test scenarios that ensure tasks do not exit queue\r
- * send or receive functions prematurely. A description of the tests is\r
- * included within the code.\r
- */\r
-\r
-/* Kernel includes. */\r
-#include "FreeRTOS.h"\r
-#include "task.h"\r
-#include "queue.h"\r
-\r
-/* Demo includes. */\r
-#include "blocktim.h"\r
-\r
-/* Task priorities. Allow these to be overridden. */\r
-#ifndef bktPRIMARY_PRIORITY\r
- #define bktPRIMARY_PRIORITY ( configMAX_PRIORITIES - 3 )\r
-#endif\r
-\r
-#ifndef bktSECONDARY_PRIORITY\r
- #define bktSECONDARY_PRIORITY ( configMAX_PRIORITIES - 4 )\r
-#endif\r
-\r
-/* Task behaviour. */\r
-#define bktQUEUE_LENGTH ( 5 )\r
-#define bktSHORT_WAIT ( ( ( portTickType ) 20 ) / portTICK_RATE_MS )\r
-#define bktPRIMARY_BLOCK_TIME ( 10 )\r
-#define bktALLOWABLE_MARGIN ( 15 )\r
-#define bktTIME_TO_BLOCK ( 175 )\r
-#define bktDONT_BLOCK ( ( portTickType ) 0 )\r
-#define bktRUN_INDICATOR ( ( unsigned portBASE_TYPE ) 0x55 )\r
-\r
-/* The queue on which the tasks block. */\r
-static xQueueHandle xTestQueue;\r
-\r
-/* Handle to the secondary task is required by the primary task for calls\r
-to vTaskSuspend/Resume(). */\r
-static xTaskHandle xSecondary;\r
-\r
-/* Used to ensure that tasks are still executing without error. */\r
-static volatile portBASE_TYPE xPrimaryCycles = 0, xSecondaryCycles = 0;\r
-static volatile portBASE_TYPE xErrorOccurred = pdFALSE;\r
-\r
-/* Provides a simple mechanism for the primary task to know when the\r
-secondary task has executed. */\r
-static volatile unsigned portBASE_TYPE xRunIndicator;\r
-\r
-/* The two test tasks. Their behaviour is commented within the files. */\r
-static void vPrimaryBlockTimeTestTask( void *pvParameters );\r
-static void vSecondaryBlockTimeTestTask( void *pvParameters );\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-void vCreateBlockTimeTasks( void )\r
-{\r
- /* Create the queue on which the two tasks block. */\r
- xTestQueue = xQueueCreate( bktQUEUE_LENGTH, sizeof( portBASE_TYPE ) );\r
-\r
- /* vQueueAddToRegistry() adds the queue to the queue registry, if one is\r
- in use. The queue registry is provided as a means for kernel aware\r
- debuggers to locate queues and has no purpose if a kernel aware debugger\r
- is not being used. The call to vQueueAddToRegistry() will be removed\r
- by the pre-processor if configQUEUE_REGISTRY_SIZE is not defined or is\r
- defined to be less than 1. */\r
- vQueueAddToRegistry( xTestQueue, ( signed char * ) "Block_Time_Queue" );\r
-\r
- /* Create the two test tasks. */\r
- xTaskCreate( vPrimaryBlockTimeTestTask, ( signed char * )"BTest1", configMINIMAL_STACK_SIZE, NULL, bktPRIMARY_PRIORITY, NULL );\r
- xTaskCreate( vSecondaryBlockTimeTestTask, ( signed char * )"BTest2", configMINIMAL_STACK_SIZE, NULL, bktSECONDARY_PRIORITY, &xSecondary );\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void vPrimaryBlockTimeTestTask( void *pvParameters )\r
-{\r
-portBASE_TYPE xItem, xData;\r
-portTickType xTimeWhenBlocking;\r
-portTickType xTimeToBlock, xBlockedTime;\r
-\r
- ( void ) pvParameters;\r
-\r
- for( ;; )\r
- {\r
- /*********************************************************************\r
- Test 1\r
-\r
- Simple block time wakeup test on queue receives. */\r
- for( xItem = 0; xItem < bktQUEUE_LENGTH; xItem++ )\r
- {\r
- /* The queue is empty. Attempt to read from the queue using a block\r
- time. When we wake, ensure the delta in time is as expected. */\r
- xTimeToBlock = bktPRIMARY_BLOCK_TIME << xItem;\r
-\r
- xTimeWhenBlocking = xTaskGetTickCount();\r
-\r
- /* We should unblock after xTimeToBlock having not received\r
- anything on the queue. */\r
- if( xQueueReceive( xTestQueue, &xData, xTimeToBlock ) != errQUEUE_EMPTY )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- /* How long were we blocked for? */\r
- xBlockedTime = xTaskGetTickCount() - xTimeWhenBlocking;\r
-\r
- if( xBlockedTime < xTimeToBlock )\r
- {\r
- /* Should not have blocked for less than we requested. */\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- if( xBlockedTime > ( xTimeToBlock + bktALLOWABLE_MARGIN ) )\r
- {\r
- /* Should not have blocked for longer than we requested,\r
- although we would not necessarily run as soon as we were\r
- unblocked so a margin is allowed. */\r
- xErrorOccurred = pdTRUE;\r
- }\r
- }\r
-\r
- /*********************************************************************\r
- Test 2\r
-\r
- Simple block time wakeup test on queue sends.\r
-\r
- First fill the queue. It should be empty so all sends should pass. */\r
- for( xItem = 0; xItem < bktQUEUE_LENGTH; xItem++ )\r
- {\r
- if( xQueueSend( xTestQueue, &xItem, bktDONT_BLOCK ) != pdPASS )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- #if configUSE_PREEMPTION == 0\r
- taskYIELD();\r
- #endif\r
- }\r
-\r
- for( xItem = 0; xItem < bktQUEUE_LENGTH; xItem++ )\r
- {\r
- /* The queue is full. Attempt to write to the queue using a block\r
- time. When we wake, ensure the delta in time is as expected. */\r
- xTimeToBlock = bktPRIMARY_BLOCK_TIME << xItem;\r
-\r
- xTimeWhenBlocking = xTaskGetTickCount();\r
-\r
- /* We should unblock after xTimeToBlock having not received\r
- anything on the queue. */\r
- if( xQueueSend( xTestQueue, &xItem, xTimeToBlock ) != errQUEUE_FULL )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- /* How long were we blocked for? */\r
- xBlockedTime = xTaskGetTickCount() - xTimeWhenBlocking;\r
-\r
- if( xBlockedTime < xTimeToBlock )\r
- {\r
- /* Should not have blocked for less than we requested. */\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- if( xBlockedTime > ( xTimeToBlock + bktALLOWABLE_MARGIN ) )\r
- {\r
- /* Should not have blocked for longer than we requested,\r
- although we would not necessarily run as soon as we were\r
- unblocked so a margin is allowed. */\r
- xErrorOccurred = pdTRUE;\r
- }\r
- }\r
-\r
- /*********************************************************************\r
- Test 3\r
-\r
- Wake the other task, it will block attempting to post to the queue.\r
- When we read from the queue the other task will wake, but before it\r
- can run we will post to the queue again. When the other task runs it\r
- will find the queue still full, even though it was woken. It should\r
- recognise that its block time has not expired and return to block for\r
- the remains of its block time.\r
-\r
- Wake the other task so it blocks attempting to post to the already\r
- full queue. */\r
- xRunIndicator = 0;\r
- vTaskResume( xSecondary );\r
-\r
- /* We need to wait a little to ensure the other task executes. */\r
- while( xRunIndicator != bktRUN_INDICATOR )\r
- {\r
- /* The other task has not yet executed. */\r
- vTaskDelay( bktSHORT_WAIT );\r
- }\r
- /* Make sure the other task is blocked on the queue. */\r
- vTaskDelay( bktSHORT_WAIT );\r
- xRunIndicator = 0;\r
-\r
- for( xItem = 0; xItem < bktQUEUE_LENGTH; xItem++ )\r
- {\r
- /* Now when we make space on the queue the other task should wake\r
- but not execute as this task has higher priority. */\r
- if( xQueueReceive( xTestQueue, &xData, bktDONT_BLOCK ) != pdPASS )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- /* Now fill the queue again before the other task gets a chance to\r
- execute. If the other task had executed we would find the queue\r
- full ourselves, and the other task have set xRunIndicator. */\r
- if( xQueueSend( xTestQueue, &xItem, bktDONT_BLOCK ) != pdPASS )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- if( xRunIndicator == bktRUN_INDICATOR )\r
- {\r
- /* The other task should not have executed. */\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- /* Raise the priority of the other task so it executes and blocks\r
- on the queue again. */\r
- vTaskPrioritySet( xSecondary, bktPRIMARY_PRIORITY + 2 );\r
-\r
- /* The other task should now have re-blocked without exiting the\r
- queue function. */\r
- if( xRunIndicator == bktRUN_INDICATOR )\r
- {\r
- /* The other task should not have executed outside of the\r
- queue function. */\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- /* Set the priority back down. */\r
- vTaskPrioritySet( xSecondary, bktSECONDARY_PRIORITY );\r
- }\r
-\r
- /* Let the other task timeout. When it unblockes it will check that it\r
- unblocked at the correct time, then suspend itself. */\r
- while( xRunIndicator != bktRUN_INDICATOR )\r
- {\r
- vTaskDelay( bktSHORT_WAIT );\r
- }\r
- vTaskDelay( bktSHORT_WAIT );\r
- xRunIndicator = 0;\r
-\r
-\r
- /*********************************************************************\r
- Test 4\r
-\r
- As per test 3 - but with the send and receive the other way around.\r
- The other task blocks attempting to read from the queue.\r
-\r
- Empty the queue. We should find that it is full. */\r
- for( xItem = 0; xItem < bktQUEUE_LENGTH; xItem++ )\r
- {\r
- if( xQueueReceive( xTestQueue, &xData, bktDONT_BLOCK ) != pdPASS )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
- }\r
-\r
- /* Wake the other task so it blocks attempting to read from the\r
- already empty queue. */\r
- vTaskResume( xSecondary );\r
-\r
- /* We need to wait a little to ensure the other task executes. */\r
- while( xRunIndicator != bktRUN_INDICATOR )\r
- {\r
- vTaskDelay( bktSHORT_WAIT );\r
- }\r
- vTaskDelay( bktSHORT_WAIT );\r
- xRunIndicator = 0;\r
-\r
- for( xItem = 0; xItem < bktQUEUE_LENGTH; xItem++ )\r
- {\r
- /* Now when we place an item on the queue the other task should\r
- wake but not execute as this task has higher priority. */\r
- if( xQueueSend( xTestQueue, &xItem, bktDONT_BLOCK ) != pdPASS )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- /* Now empty the queue again before the other task gets a chance to\r
- execute. If the other task had executed we would find the queue\r
- empty ourselves, and the other task would be suspended. */\r
- if( xQueueReceive( xTestQueue, &xData, bktDONT_BLOCK ) != pdPASS )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- if( xRunIndicator == bktRUN_INDICATOR )\r
- {\r
- /* The other task should not have executed. */\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- /* Raise the priority of the other task so it executes and blocks\r
- on the queue again. */\r
- vTaskPrioritySet( xSecondary, bktPRIMARY_PRIORITY + 2 );\r
-\r
- /* The other task should now have re-blocked without exiting the\r
- queue function. */\r
- if( xRunIndicator == bktRUN_INDICATOR )\r
- {\r
- /* The other task should not have executed outside of the\r
- queue function. */\r
- xErrorOccurred = pdTRUE;\r
- }\r
- vTaskPrioritySet( xSecondary, bktSECONDARY_PRIORITY );\r
- }\r
-\r
- /* Let the other task timeout. When it unblockes it will check that it\r
- unblocked at the correct time, then suspend itself. */\r
- while( xRunIndicator != bktRUN_INDICATOR )\r
- {\r
- vTaskDelay( bktSHORT_WAIT );\r
- }\r
- vTaskDelay( bktSHORT_WAIT );\r
-\r
- xPrimaryCycles++;\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void vSecondaryBlockTimeTestTask( void *pvParameters )\r
-{\r
-portTickType xTimeWhenBlocking, xBlockedTime;\r
-portBASE_TYPE xData;\r
-\r
- ( void ) pvParameters;\r
-\r
- for( ;; )\r
- {\r
- /*********************************************************************\r
- Test 1 and 2\r
-\r
- This task does does not participate in these tests. */\r
- vTaskSuspend( NULL );\r
-\r
- /*********************************************************************\r
- Test 3\r
-\r
- The first thing we do is attempt to read from the queue. It should be\r
- full so we block. Note the time before we block so we can check the\r
- wake time is as per that expected. */\r
- xTimeWhenBlocking = xTaskGetTickCount();\r
-\r
- /* We should unblock after bktTIME_TO_BLOCK having not sent\r
- anything to the queue. */\r
- xData = 0;\r
- xRunIndicator = bktRUN_INDICATOR;\r
- if( xQueueSend( xTestQueue, &xData, bktTIME_TO_BLOCK ) != errQUEUE_FULL )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- /* How long were we inside the send function? */\r
- xBlockedTime = xTaskGetTickCount() - xTimeWhenBlocking;\r
-\r
- /* We should not have blocked for less time than bktTIME_TO_BLOCK. */\r
- if( xBlockedTime < bktTIME_TO_BLOCK )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- /* We should of not blocked for much longer than bktALLOWABLE_MARGIN\r
- either. A margin is permitted as we would not necessarily run as\r
- soon as we unblocked. */\r
- if( xBlockedTime > ( bktTIME_TO_BLOCK + bktALLOWABLE_MARGIN ) )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- /* Suspend ready for test 3. */\r
- xRunIndicator = bktRUN_INDICATOR;\r
- vTaskSuspend( NULL );\r
-\r
- /*********************************************************************\r
- Test 4\r
-\r
- As per test three, but with the send and receive reversed. */\r
- xTimeWhenBlocking = xTaskGetTickCount();\r
-\r
- /* We should unblock after bktTIME_TO_BLOCK having not received\r
- anything on the queue. */\r
- xRunIndicator = bktRUN_INDICATOR;\r
- if( xQueueReceive( xTestQueue, &xData, bktTIME_TO_BLOCK ) != errQUEUE_EMPTY )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- xBlockedTime = xTaskGetTickCount() - xTimeWhenBlocking;\r
-\r
- /* We should not have blocked for less time than bktTIME_TO_BLOCK. */\r
- if( xBlockedTime < bktTIME_TO_BLOCK )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- /* We should of not blocked for much longer than bktALLOWABLE_MARGIN\r
- either. A margin is permitted as we would not necessarily run as soon\r
- as we unblocked. */\r
- if( xBlockedTime > ( bktTIME_TO_BLOCK + bktALLOWABLE_MARGIN ) )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- xRunIndicator = bktRUN_INDICATOR;\r
-\r
- xSecondaryCycles++;\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-portBASE_TYPE xAreBlockTimeTestTasksStillRunning( void )\r
-{\r
-static portBASE_TYPE xLastPrimaryCycleCount = 0, xLastSecondaryCycleCount = 0;\r
-portBASE_TYPE xReturn = pdPASS;\r
-\r
- /* Have both tasks performed at least one cycle since this function was\r
- last called? */\r
- if( xPrimaryCycles == xLastPrimaryCycleCount )\r
- {\r
- xReturn = pdFAIL;\r
- }\r
-\r
- if( xSecondaryCycles == xLastSecondaryCycleCount )\r
- {\r
- xReturn = pdFAIL;\r
- }\r
-\r
- if( xErrorOccurred == pdTRUE )\r
- {\r
- xReturn = pdFAIL;\r
- }\r
-\r
- xLastSecondaryCycleCount = xSecondaryCycles;\r
- xLastPrimaryCycleCount = xPrimaryCycles;\r
-\r
- return xReturn;\r
-}\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-#ifndef BLOCK_TIME_TEST_H\r
-#define BLOCK_TIME_TEST_H\r
-\r
-void vCreateBlockTimeTasks( void );\r
-portBASE_TYPE xAreBlockTimeTestTasksStillRunning( void );\r
-\r
-#endif\r
-\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-\r
-/* \r
- * Simple demonstration of the usage of counting semaphore.\r
- */\r
-\r
-/* Scheduler include files. */\r
-#include "FreeRTOS.h"\r
-#include "task.h"\r
-#include "semphr.h"\r
-\r
-/* Demo program include files. */\r
-#include "countsem.h"\r
-\r
-/* The maximum count value that the semaphore used for the demo can hold. */\r
-#define countMAX_COUNT_VALUE ( 200 )\r
-\r
-/* Constants used to indicate whether or not the semaphore should have been\r
-created with its maximum count value, or its minimum count value. These \r
-numbers are used to ensure that the pointers passed in as the task parameters\r
-are valid. */\r
-#define countSTART_AT_MAX_COUNT ( 0xaa )\r
-#define countSTART_AT_ZERO ( 0x55 )\r
-\r
-/* Two tasks are created for the test. One uses a semaphore created with its\r
-count value set to the maximum, and one with the count value set to zero. */\r
-#define countNUM_TEST_TASKS ( 2 )\r
-#define countDONT_BLOCK ( 0 )\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-/* Flag that will be latched to pdTRUE should any unexpected behaviour be\r
-detected in any of the tasks. */\r
-static volatile portBASE_TYPE xErrorDetected = pdFALSE;\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-/*\r
- * The demo task. This simply counts the semaphore up to its maximum value,\r
- * the counts it back down again. The result of each semaphore 'give' and\r
- * 'take' is inspected, with an error being flagged if it is found not to be\r
- * the expected result.\r
- */\r
-static void prvCountingSemaphoreTask( void *pvParameters );\r
-\r
-/*\r
- * Utility function to increment the semaphore count value up from zero to\r
- * countMAX_COUNT_VALUE.\r
- */\r
-static void prvIncrementSemaphoreCount( xSemaphoreHandle xSemaphore, unsigned portBASE_TYPE *puxLoopCounter );\r
-\r
-/*\r
- * Utility function to decrement the semaphore count value up from \r
- * countMAX_COUNT_VALUE to zero.\r
- */\r
-static void prvDecrementSemaphoreCount( xSemaphoreHandle xSemaphore, unsigned portBASE_TYPE *puxLoopCounter );\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-/* The structure that is passed into the task as the task parameter. */\r
-typedef struct COUNT_SEM_STRUCT\r
-{\r
- /* The semaphore to be used for the demo. */\r
- xSemaphoreHandle xSemaphore;\r
-\r
- /* Set to countSTART_AT_MAX_COUNT if the semaphore should be created with\r
- its count value set to its max count value, or countSTART_AT_ZERO if it\r
- should have been created with its count value set to 0. */\r
- unsigned portBASE_TYPE uxExpectedStartCount; \r
-\r
- /* Incremented on each cycle of the demo task. Used to detect a stalled\r
- task. */\r
- unsigned portBASE_TYPE uxLoopCounter; \r
-} xCountSemStruct;\r
-\r
-/* Two structures are defined, one is passed to each test task. */\r
-static volatile xCountSemStruct xParameters[ countNUM_TEST_TASKS ];\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-void vStartCountingSemaphoreTasks( void )\r
-{\r
- /* Create the semaphores that we are going to use for the test/demo. The\r
- first should be created such that it starts at its maximum count value,\r
- the second should be created such that it starts with a count value of zero. */\r
- xParameters[ 0 ].xSemaphore = xSemaphoreCreateCounting( countMAX_COUNT_VALUE, countMAX_COUNT_VALUE );\r
- xParameters[ 0 ].uxExpectedStartCount = countSTART_AT_MAX_COUNT;\r
- xParameters[ 0 ].uxLoopCounter = 0;\r
-\r
- xParameters[ 1 ].xSemaphore = xSemaphoreCreateCounting( countMAX_COUNT_VALUE, 0 );\r
- xParameters[ 1 ].uxExpectedStartCount = 0;\r
- xParameters[ 1 ].uxLoopCounter = 0;\r
-\r
- /* vQueueAddToRegistry() adds the semaphore to the registry, if one is\r
- in use. The registry is provided as a means for kernel aware \r
- debuggers to locate semaphores and has no purpose if a kernel aware debugger\r
- is not being used. The call to vQueueAddToRegistry() will be removed\r
- by the pre-processor if configQUEUE_REGISTRY_SIZE is not defined or is \r
- defined to be less than 1. */\r
- vQueueAddToRegistry( ( xQueueHandle ) xParameters[ 0 ].xSemaphore, ( signed portCHAR * ) "Counting_Sem_1" );\r
- vQueueAddToRegistry( ( xQueueHandle ) xParameters[ 1 ].xSemaphore, ( signed portCHAR * ) "Counting_Sem_2" );\r
-\r
-\r
- /* Were the semaphores created? */\r
- if( ( xParameters[ 0 ].xSemaphore != NULL ) || ( xParameters[ 1 ].xSemaphore != NULL ) )\r
- {\r
- /* Create the demo tasks, passing in the semaphore to use as the parameter. */\r
- xTaskCreate( prvCountingSemaphoreTask, ( signed portCHAR * ) "CNT1", configMINIMAL_STACK_SIZE, ( void * ) &( xParameters[ 0 ] ), tskIDLE_PRIORITY, NULL );\r
- xTaskCreate( prvCountingSemaphoreTask, ( signed portCHAR * ) "CNT2", configMINIMAL_STACK_SIZE, ( void * ) &( xParameters[ 1 ] ), tskIDLE_PRIORITY, NULL ); \r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvDecrementSemaphoreCount( xSemaphoreHandle xSemaphore, unsigned portBASE_TYPE *puxLoopCounter )\r
-{\r
-unsigned portBASE_TYPE ux;\r
-\r
- /* If the semaphore count is at its maximum then we should not be able to\r
- 'give' the semaphore. */\r
- if( xSemaphoreGive( xSemaphore ) == pdPASS )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- /* We should be able to 'take' the semaphore countMAX_COUNT_VALUE times. */\r
- for( ux = 0; ux < countMAX_COUNT_VALUE; ux++ )\r
- {\r
- if( xSemaphoreTake( xSemaphore, countDONT_BLOCK ) != pdPASS )\r
- {\r
- /* We expected to be able to take the semaphore. */\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- ( *puxLoopCounter )++;\r
- }\r
-\r
- #if configUSE_PREEMPTION == 0\r
- taskYIELD();\r
- #endif\r
-\r
- /* If the semaphore count is zero then we should not be able to 'take' \r
- the semaphore. */\r
- if( xSemaphoreTake( xSemaphore, countDONT_BLOCK ) == pdPASS )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvIncrementSemaphoreCount( xSemaphoreHandle xSemaphore, unsigned portBASE_TYPE *puxLoopCounter )\r
-{\r
-unsigned portBASE_TYPE ux;\r
-\r
- /* If the semaphore count is zero then we should not be able to 'take' \r
- the semaphore. */\r
- if( xSemaphoreTake( xSemaphore, countDONT_BLOCK ) == pdPASS )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- /* We should be able to 'give' the semaphore countMAX_COUNT_VALUE times. */\r
- for( ux = 0; ux < countMAX_COUNT_VALUE; ux++ )\r
- {\r
- if( xSemaphoreGive( xSemaphore ) != pdPASS )\r
- {\r
- /* We expected to be able to take the semaphore. */\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- ( *puxLoopCounter )++;\r
- }\r
-\r
- #if configUSE_PREEMPTION == 0\r
- taskYIELD();\r
- #endif\r
-\r
- /* If the semaphore count is at its maximum then we should not be able to\r
- 'give' the semaphore. */\r
- if( xSemaphoreGive( xSemaphore ) == pdPASS )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvCountingSemaphoreTask( void *pvParameters )\r
-{\r
-xCountSemStruct *pxParameter;\r
-\r
- #ifdef USE_STDIO\r
- void vPrintDisplayMessage( const portCHAR * const * ppcMessageToSend );\r
- \r
- const portCHAR * const pcTaskStartMsg = "Counting semaphore demo started.\r\n";\r
-\r
- /* Queue a message for printing to say the task has started. */\r
- vPrintDisplayMessage( &pcTaskStartMsg );\r
- #endif\r
-\r
- /* The semaphore to be used was passed as the parameter. */\r
- pxParameter = ( xCountSemStruct * ) pvParameters;\r
-\r
- /* Did we expect to find the semaphore already at its max count value, or\r
- at zero? */\r
- if( pxParameter->uxExpectedStartCount == countSTART_AT_MAX_COUNT )\r
- {\r
- prvDecrementSemaphoreCount( pxParameter->xSemaphore, &( pxParameter->uxLoopCounter ) );\r
- }\r
-\r
- /* Now we expect the semaphore count to be 0, so this time there is an\r
- error if we can take the semaphore. */\r
- if( xSemaphoreTake( pxParameter->xSemaphore, 0 ) == pdPASS )\r
- {\r
- xErrorDetected = pdTRUE;\r
- }\r
-\r
- for( ;; )\r
- {\r
- prvIncrementSemaphoreCount( pxParameter->xSemaphore, &( pxParameter->uxLoopCounter ) );\r
- prvDecrementSemaphoreCount( pxParameter->xSemaphore, &( pxParameter->uxLoopCounter ) );\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-portBASE_TYPE xAreCountingSemaphoreTasksStillRunning( void )\r
-{\r
-static unsigned portBASE_TYPE uxLastCount0 = 0, uxLastCount1 = 0;\r
-portBASE_TYPE xReturn = pdPASS;\r
-\r
- /* Return fail if any 'give' or 'take' did not result in the expected\r
- behaviour. */\r
- if( xErrorDetected != pdFALSE )\r
- {\r
- xReturn = pdFAIL;\r
- }\r
-\r
- /* Return fail if either task is not still incrementing its loop counter. */\r
- if( uxLastCount0 == xParameters[ 0 ].uxLoopCounter )\r
- {\r
- xReturn = pdFAIL;\r
- }\r
- else\r
- {\r
- uxLastCount0 = xParameters[ 0 ].uxLoopCounter;\r
- }\r
-\r
- if( uxLastCount1 == xParameters[ 1 ].uxLoopCounter )\r
- {\r
- xReturn = pdFAIL;\r
- }\r
- else\r
- {\r
- uxLastCount1 = xParameters[ 1 ].uxLoopCounter;\r
- }\r
-\r
- return xReturn;\r
-}\r
-\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.0.2 - Copyright (C) 2011 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
-\r
- http://www.FreeRTOS.org - Documentation, latest information, license and\r
- contact details.\r
-\r
- http://www.SafeRTOS.com - A version that is certified for use in safety\r
- critical systems.\r
-\r
- http://www.OpenRTOS.com - Commercial support, development, porting,\r
- licensing and training services.\r
-*/\r
-\r
-#ifndef COUNT_SEMAPHORE_TEST_H\r
-#define COUNT_SEMAPHORE_TEST_H\r
-\r
-void vStartCountingSemaphoreTasks( void );\r
-portBASE_TYPE xAreCountingSemaphoreTasksStillRunning( void );\r
-\r
-#endif\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-/**\r
- * Create a single persistent task which periodically dynamically creates another\r
- * two tasks. The original task is called the creator task, the two tasks it\r
- * creates are called suicidal tasks.\r
- *\r
- * One of the created suicidal tasks kill one other suicidal task before killing\r
- * itself - leaving just the original task remaining.\r
- *\r
- * The creator task must be spawned after all of the other demo application tasks\r
- * as it keeps a check on the number of tasks under the scheduler control. The\r
- * number of tasks it expects to see running should never be greater than the\r
- * number of tasks that were in existence when the creator task was spawned, plus\r
- * one set of four suicidal tasks. If this number is exceeded an error is flagged.\r
- *\r
- * \page DeathC death.c\r
- * \ingroup DemoFiles\r
- * <HR>\r
- */\r
-\r
-/*\r
-Changes from V3.0.0\r
- + CreationCount sizes changed from unsigned portBASE_TYPE to\r
- unsigned short to minimize the risk of overflowing.\r
- \r
- + Reset of usLastCreationCount added\r
- \r
-Changes from V3.1.0\r
- + Changed the dummy calculation to use variables of type long, rather than\r
- float. This allows the file to be used with ports that do not support\r
- floating point.\r
-\r
-*/\r
-\r
-#include <stdlib.h>\r
-\r
-/* Scheduler include files. */\r
-#include "FreeRTOS.h"\r
-#include "task.h"\r
-\r
-/* Demo program include files. */\r
-#include "death.h"\r
-\r
-#define deathSTACK_SIZE ( configMINIMAL_STACK_SIZE + 60 )\r
-\r
-/* The task originally created which is responsible for periodically dynamically\r
-creating another four tasks. */\r
-static portTASK_FUNCTION_PROTO( vCreateTasks, pvParameters );\r
-\r
-/* The task function of the dynamically created tasks. */\r
-static portTASK_FUNCTION_PROTO( vSuicidalTask, pvParameters );\r
-\r
-/* A variable which is incremented every time the dynamic tasks are created. This\r
-is used to check that the task is still running. */\r
-static volatile unsigned short usCreationCount = 0;\r
-\r
-/* Used to store the number of tasks that were originally running so the creator\r
-task can tell if any of the suicidal tasks have failed to die.\r
-*/\r
-static volatile unsigned portBASE_TYPE uxTasksRunningAtStart = 0;\r
-\r
-/* Tasks are deleted by the idle task. Under heavy load the idle task might\r
-not get much processing time, so it would be legitimate for several tasks to\r
-remain undeleted for a short period. */\r
-static const unsigned portBASE_TYPE uxMaxNumberOfExtraTasksRunning = 3;\r
-\r
-/* Used to store a handle to the task that should be killed by a suicidal task,\r
-before it kills itself. */\r
-xTaskHandle xCreatedTask;\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-void vCreateSuicidalTasks( unsigned portBASE_TYPE uxPriority )\r
-{\r
-unsigned portBASE_TYPE *puxPriority;\r
-\r
- /* Create the Creator tasks - passing in as a parameter the priority at which\r
- the suicidal tasks should be created. */\r
- puxPriority = ( unsigned portBASE_TYPE * ) pvPortMalloc( sizeof( unsigned portBASE_TYPE ) );\r
- *puxPriority = uxPriority;\r
-\r
- xTaskCreate( vCreateTasks, ( signed char * ) "CREATOR", deathSTACK_SIZE, ( void * ) puxPriority, uxPriority, NULL );\r
-\r
- /* Record the number of tasks that are running now so we know if any of the\r
- suicidal tasks have failed to be killed. */\r
- uxTasksRunningAtStart = ( unsigned portBASE_TYPE ) uxTaskGetNumberOfTasks();\r
- \r
- /* FreeRTOS.org versions before V3.0 started the idle-task as the very\r
- first task. The idle task was then already included in uxTasksRunningAtStart.\r
- From FreeRTOS V3.0 on, the idle task is started when the scheduler is\r
- started. Therefore the idle task is not yet accounted for. We correct\r
- this by increasing uxTasksRunningAtStart by 1. */\r
- uxTasksRunningAtStart++;\r
- \r
- /* From FreeRTOS version 7.0.0 can optionally create a timer service task. \r
- If this is done, then uxTasksRunningAtStart needs incrementing again as that\r
- too is created when the scheduler is started. */\r
- #if configUSE_TIMERS == 1\r
- uxTasksRunningAtStart++;\r
- #endif\r
-}\r
-/*-----------------------------------------------------------*/\r
- \r
-static portTASK_FUNCTION( vSuicidalTask, pvParameters )\r
-{\r
-volatile long l1, l2;\r
-xTaskHandle xTaskToKill;\r
-const portTickType xDelay = ( portTickType ) 200 / portTICK_RATE_MS;\r
-\r
- if( pvParameters != NULL )\r
- {\r
- /* This task is periodically created four times. Two created tasks are\r
- passed a handle to the other task so it can kill it before killing itself.\r
- The other task is passed in null. */\r
- xTaskToKill = *( xTaskHandle* )pvParameters;\r
- }\r
- else\r
- {\r
- xTaskToKill = NULL;\r
- }\r
-\r
- for( ;; )\r
- {\r
- /* Do something random just to use some stack and registers. */\r
- l1 = 2;\r
- l2 = 89;\r
- l2 *= l1;\r
- vTaskDelay( xDelay );\r
-\r
- if( xTaskToKill != NULL )\r
- {\r
- /* Make sure the other task has a go before we delete it. */\r
- vTaskDelay( ( portTickType ) 0 );\r
-\r
- /* Kill the other task that was created by vCreateTasks(). */\r
- vTaskDelete( xTaskToKill );\r
-\r
- /* Kill ourselves. */\r
- vTaskDelete( NULL );\r
- }\r
- }\r
-}/*lint !e818 !e550 Function prototype must be as per standard for task functions. */\r
-/*-----------------------------------------------------------*/\r
-\r
-static portTASK_FUNCTION( vCreateTasks, pvParameters )\r
-{\r
-const portTickType xDelay = ( portTickType ) 1000 / portTICK_RATE_MS;\r
-unsigned portBASE_TYPE uxPriority;\r
-\r
- uxPriority = *( unsigned portBASE_TYPE * ) pvParameters;\r
- vPortFree( pvParameters );\r
-\r
- for( ;; )\r
- {\r
- /* Just loop round, delaying then creating the four suicidal tasks. */\r
- vTaskDelay( xDelay );\r
-\r
- xCreatedTask = NULL;\r
-\r
- xTaskCreate( vSuicidalTask, ( signed char * ) "SUICID1", configMINIMAL_STACK_SIZE, NULL, uxPriority, &xCreatedTask );\r
- xTaskCreate( vSuicidalTask, ( signed char * ) "SUICID2", configMINIMAL_STACK_SIZE, &xCreatedTask, uxPriority, NULL );\r
-\r
- ++usCreationCount;\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-/* This is called to check that the creator task is still running and that there\r
-are not any more than four extra tasks. */\r
-portBASE_TYPE xIsCreateTaskStillRunning( void )\r
-{\r
-static unsigned short usLastCreationCount = 0xfff;\r
-portBASE_TYPE xReturn = pdTRUE;\r
-static unsigned portBASE_TYPE uxTasksRunningNow;\r
-\r
- if( usLastCreationCount == usCreationCount )\r
- {\r
- xReturn = pdFALSE;\r
- }\r
- else\r
- {\r
- usLastCreationCount = usCreationCount;\r
- }\r
- \r
- uxTasksRunningNow = ( unsigned portBASE_TYPE ) uxTaskGetNumberOfTasks();\r
-\r
- if( uxTasksRunningNow < uxTasksRunningAtStart )\r
- {\r
- xReturn = pdFALSE;\r
- }\r
- else if( ( uxTasksRunningNow - uxTasksRunningAtStart ) > uxMaxNumberOfExtraTasksRunning )\r
- {\r
- xReturn = pdFALSE;\r
- }\r
- else\r
- {\r
- /* Everything is okay. */\r
- }\r
-\r
- return xReturn;\r
-}\r
-\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-#ifndef SUICIDE_TASK_H\r
-#define SUICIDE_TASK_H\r
-\r
-void vCreateSuicidalTasks( unsigned portBASE_TYPE uxPriority );\r
-portBASE_TYPE xIsCreateTaskStillRunning( void );\r
-\r
-#endif\r
-\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-/*\r
- * The first test creates three tasks - two counter tasks (one continuous count \r
- * and one limited count) and one controller. A "count" variable is shared \r
- * between all three tasks. The two counter tasks should never be in a "ready" \r
- * state at the same time. The controller task runs at the same priority as \r
- * the continuous count task, and at a lower priority than the limited count \r
- * task.\r
- *\r
- * One counter task loops indefinitely, incrementing the shared count variable\r
- * on each iteration. To ensure it has exclusive access to the variable it\r
- * raises it's priority above that of the controller task before each \r
- * increment, lowering it again to it's original priority before starting the\r
- * next iteration.\r
- *\r
- * The other counter task increments the shared count variable on each\r
- * iteration of it's loop until the count has reached a limit of 0xff - at\r
- * which point it suspends itself. It will not start a new loop until the \r
- * controller task has made it "ready" again by calling vTaskResume (). \r
- * This second counter task operates at a higher priority than controller \r
- * task so does not need to worry about mutual exclusion of the counter \r
- * variable.\r
- *\r
- * The controller task is in two sections. The first section controls and\r
- * monitors the continuous count task. When this section is operational the \r
- * limited count task is suspended. Likewise, the second section controls \r
- * and monitors the limited count task. When this section is operational the \r
- * continuous count task is suspended.\r
- *\r
- * In the first section the controller task first takes a copy of the shared\r
- * count variable. To ensure mutual exclusion on the count variable it\r
- * suspends the continuous count task, resuming it again when the copy has been\r
- * taken. The controller task then sleeps for a fixed period - during which\r
- * the continuous count task will execute and increment the shared variable.\r
- * When the controller task wakes it checks that the continuous count task\r
- * has executed by comparing the copy of the shared variable with its current\r
- * value. This time, to ensure mutual exclusion, the scheduler itself is \r
- * suspended with a call to vTaskSuspendAll (). This is for demonstration \r
- * purposes only and is not a recommended technique due to its inefficiency.\r
- *\r
- * After a fixed number of iterations the controller task suspends the \r
- * continuous count task, and moves on to its second section.\r
- *\r
- * At the start of the second section the shared variable is cleared to zero.\r
- * The limited count task is then woken from it's suspension by a call to\r
- * vTaskResume (). As this counter task operates at a higher priority than\r
- * the controller task the controller task should not run again until the\r
- * shared variable has been counted up to the limited value causing the counter\r
- * task to suspend itself. The next line after vTaskResume () is therefore\r
- * a check on the shared variable to ensure everything is as expected.\r
- *\r
- *\r
- * The second test consists of a couple of very simple tasks that post onto a \r
- * queue while the scheduler is suspended. This test was added to test parts\r
- * of the scheduler not exercised by the first test.\r
- *\r
- */\r
-\r
-#include <stdlib.h>\r
-\r
-/* Scheduler include files. */\r
-#include "FreeRTOS.h"\r
-#include "task.h"\r
-#include "semphr.h"\r
-\r
-/* Demo app include files. */\r
-#include "dynamic.h"\r
-\r
-/* Function that implements the "limited count" task as described above. */\r
-static portTASK_FUNCTION_PROTO( vLimitedIncrementTask, pvParameters );\r
-\r
-/* Function that implements the "continuous count" task as described above. */\r
-static portTASK_FUNCTION_PROTO( vContinuousIncrementTask, pvParameters );\r
-\r
-/* Function that implements the controller task as described above. */\r
-static portTASK_FUNCTION_PROTO( vCounterControlTask, pvParameters );\r
-\r
-static portTASK_FUNCTION_PROTO( vQueueReceiveWhenSuspendedTask, pvParameters );\r
-static portTASK_FUNCTION_PROTO( vQueueSendWhenSuspendedTask, pvParameters );\r
-\r
-/* Demo task specific constants. */\r
-#define priSTACK_SIZE ( configMINIMAL_STACK_SIZE )\r
-#define priSLEEP_TIME ( ( portTickType ) 128 / portTICK_RATE_MS )\r
-#define priLOOPS ( 5 )\r
-#define priMAX_COUNT ( ( unsigned long ) 0xff )\r
-#define priNO_BLOCK ( ( portTickType ) 0 )\r
-#define priSUSPENDED_QUEUE_LENGTH ( 1 )\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-/* Handles to the two counter tasks. These could be passed in as parameters\r
-to the controller task to prevent them having to be file scope. */\r
-static xTaskHandle xContinousIncrementHandle, xLimitedIncrementHandle;\r
-\r
-/* The shared counter variable. This is passed in as a parameter to the two \r
-counter variables for demonstration purposes. */\r
-static unsigned long ulCounter;\r
-\r
-/* Variables used to check that the tasks are still operating without error.\r
-Each complete iteration of the controller task increments this variable\r
-provided no errors have been found. The variable maintaining the same value\r
-is therefore indication of an error. */\r
-static volatile unsigned short usCheckVariable = ( unsigned short ) 0;\r
-static volatile portBASE_TYPE xSuspendedQueueSendError = pdFALSE;\r
-static volatile portBASE_TYPE xSuspendedQueueReceiveError = pdFALSE;\r
-\r
-/* Queue used by the second test. */\r
-xQueueHandle xSuspendedTestQueue;\r
-\r
-/*-----------------------------------------------------------*/\r
-/*\r
- * Start the three tasks as described at the top of the file.\r
- * Note that the limited count task is given a higher priority.\r
- */\r
-void vStartDynamicPriorityTasks( void )\r
-{\r
- xSuspendedTestQueue = xQueueCreate( priSUSPENDED_QUEUE_LENGTH, sizeof( unsigned long ) );\r
-\r
- /* vQueueAddToRegistry() adds the queue to the queue registry, if one is\r
- in use. The queue registry is provided as a means for kernel aware \r
- debuggers to locate queues and has no purpose if a kernel aware debugger\r
- is not being used. The call to vQueueAddToRegistry() will be removed\r
- by the pre-processor if configQUEUE_REGISTRY_SIZE is not defined or is \r
- defined to be less than 1. */\r
- vQueueAddToRegistry( xSuspendedTestQueue, ( signed char * ) "Suspended_Test_Queue" );\r
-\r
- xTaskCreate( vContinuousIncrementTask, ( signed char * ) "CNT_INC", priSTACK_SIZE, ( void * ) &ulCounter, tskIDLE_PRIORITY, &xContinousIncrementHandle );\r
- xTaskCreate( vLimitedIncrementTask, ( signed char * ) "LIM_INC", priSTACK_SIZE, ( void * ) &ulCounter, tskIDLE_PRIORITY + 1, &xLimitedIncrementHandle );\r
- xTaskCreate( vCounterControlTask, ( signed char * ) "C_CTRL", priSTACK_SIZE, NULL, tskIDLE_PRIORITY, NULL );\r
- xTaskCreate( vQueueSendWhenSuspendedTask, ( signed char * ) "SUSP_TX", priSTACK_SIZE, NULL, tskIDLE_PRIORITY, NULL );\r
- xTaskCreate( vQueueReceiveWhenSuspendedTask, ( signed char * ) "SUSP_RX", priSTACK_SIZE, NULL, tskIDLE_PRIORITY, NULL );\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-/*\r
- * Just loops around incrementing the shared variable until the limit has been\r
- * reached. Once the limit has been reached it suspends itself. \r
- */\r
-static portTASK_FUNCTION( vLimitedIncrementTask, pvParameters )\r
-{\r
-unsigned long *pulCounter;\r
-\r
- /* Take a pointer to the shared variable from the parameters passed into\r
- the task. */\r
- pulCounter = ( unsigned long * ) pvParameters;\r
-\r
- /* This will run before the control task, so the first thing it does is\r
- suspend - the control task will resume it when ready. */\r
- vTaskSuspend( NULL );\r
-\r
- for( ;; )\r
- {\r
- /* Just count up to a value then suspend. */\r
- ( *pulCounter )++; \r
- \r
- if( *pulCounter >= priMAX_COUNT )\r
- {\r
- vTaskSuspend( NULL );\r
- } \r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-/*\r
- * Just keep counting the shared variable up. The control task will suspend\r
- * this task when it wants.\r
- */\r
-static portTASK_FUNCTION( vContinuousIncrementTask, pvParameters )\r
-{\r
-unsigned long *pulCounter;\r
-unsigned portBASE_TYPE uxOurPriority;\r
-\r
- /* Take a pointer to the shared variable from the parameters passed into\r
- the task. */\r
- pulCounter = ( unsigned long * ) pvParameters;\r
-\r
- /* Query our priority so we can raise it when exclusive access to the \r
- shared variable is required. */\r
- uxOurPriority = uxTaskPriorityGet( NULL );\r
-\r
- for( ;; )\r
- {\r
- /* Raise our priority above the controller task to ensure a context\r
- switch does not occur while we are accessing this variable. */\r
- vTaskPrioritySet( NULL, uxOurPriority + 1 );\r
- ( *pulCounter )++; \r
- vTaskPrioritySet( NULL, uxOurPriority );\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-/*\r
- * Controller task as described above.\r
- */\r
-static portTASK_FUNCTION( vCounterControlTask, pvParameters )\r
-{\r
-unsigned long ulLastCounter;\r
-short sLoops;\r
-short sError = pdFALSE;\r
-\r
- /* Just to stop warning messages. */\r
- ( void ) pvParameters;\r
-\r
- for( ;; )\r
- {\r
- /* Start with the counter at zero. */\r
- ulCounter = ( unsigned long ) 0;\r
-\r
- /* First section : */\r
-\r
- /* Check the continuous count task is running. */\r
- for( sLoops = 0; sLoops < priLOOPS; sLoops++ )\r
- {\r
- /* Suspend the continuous count task so we can take a mirror of the\r
- shared variable without risk of corruption. */\r
- vTaskSuspend( xContinousIncrementHandle );\r
- ulLastCounter = ulCounter;\r
- vTaskResume( xContinousIncrementHandle );\r
- \r
- /* Now delay to ensure the other task has processor time. */\r
- vTaskDelay( priSLEEP_TIME );\r
-\r
- /* Check the shared variable again. This time to ensure mutual \r
- exclusion the whole scheduler will be locked. This is just for\r
- demo purposes! */\r
- vTaskSuspendAll();\r
- {\r
- if( ulLastCounter == ulCounter )\r
- {\r
- /* The shared variable has not changed. There is a problem\r
- with the continuous count task so flag an error. */\r
- sError = pdTRUE;\r
- }\r
- }\r
- xTaskResumeAll();\r
- }\r
-\r
-\r
- /* Second section: */\r
-\r
- /* Suspend the continuous counter task so it stops accessing the shared variable. */\r
- vTaskSuspend( xContinousIncrementHandle );\r
-\r
- /* Reset the variable. */\r
- ulCounter = ( unsigned long ) 0;\r
-\r
- /* Resume the limited count task which has a higher priority than us.\r
- We should therefore not return from this call until the limited count\r
- task has suspended itself with a known value in the counter variable. */\r
- vTaskResume( xLimitedIncrementHandle );\r
-\r
- /* Does the counter variable have the expected value? */\r
- if( ulCounter != priMAX_COUNT )\r
- {\r
- sError = pdTRUE;\r
- }\r
-\r
- if( sError == pdFALSE )\r
- {\r
- /* If no errors have occurred then increment the check variable. */\r
- portENTER_CRITICAL();\r
- usCheckVariable++;\r
- portEXIT_CRITICAL();\r
- }\r
-\r
- /* Resume the continuous count task and do it all again. */\r
- vTaskResume( xContinousIncrementHandle );\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static portTASK_FUNCTION( vQueueSendWhenSuspendedTask, pvParameters )\r
-{\r
-static unsigned long ulValueToSend = ( unsigned long ) 0;\r
-\r
- /* Just to stop warning messages. */\r
- ( void ) pvParameters;\r
-\r
- for( ;; )\r
- {\r
- vTaskSuspendAll();\r
- {\r
- /* We must not block while the scheduler is suspended! */\r
- if( xQueueSend( xSuspendedTestQueue, ( void * ) &ulValueToSend, priNO_BLOCK ) != pdTRUE )\r
- {\r
- xSuspendedQueueSendError = pdTRUE;\r
- }\r
- }\r
- xTaskResumeAll();\r
-\r
- vTaskDelay( priSLEEP_TIME );\r
-\r
- ++ulValueToSend;\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static portTASK_FUNCTION( vQueueReceiveWhenSuspendedTask, pvParameters )\r
-{\r
-static unsigned long ulExpectedValue = ( unsigned long ) 0, ulReceivedValue;\r
-portBASE_TYPE xGotValue;\r
-\r
- /* Just to stop warning messages. */\r
- ( void ) pvParameters;\r
-\r
- for( ;; )\r
- {\r
- do\r
- {\r
- /* Suspending the scheduler here is fairly pointless and \r
- undesirable for a normal application. It is done here purely\r
- to test the scheduler. The inner xTaskResumeAll() should\r
- never return pdTRUE as the scheduler is still locked by the\r
- outer call. */\r
- vTaskSuspendAll();\r
- {\r
- vTaskSuspendAll();\r
- {\r
- xGotValue = xQueueReceive( xSuspendedTestQueue, ( void * ) &ulReceivedValue, priNO_BLOCK );\r
- }\r
- if( xTaskResumeAll() )\r
- {\r
- xSuspendedQueueReceiveError = pdTRUE;\r
- }\r
- }\r
- xTaskResumeAll();\r
-\r
- #if configUSE_PREEMPTION == 0\r
- {\r
- taskYIELD();\r
- }\r
- #endif\r
-\r
- } while( xGotValue == pdFALSE );\r
-\r
- if( ulReceivedValue != ulExpectedValue )\r
- {\r
- xSuspendedQueueReceiveError = pdTRUE;\r
- }\r
-\r
- ++ulExpectedValue;\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-/* Called to check that all the created tasks are still running without error. */\r
-portBASE_TYPE xAreDynamicPriorityTasksStillRunning( void )\r
-{\r
-/* Keep a history of the check variables so we know if it has been incremented \r
-since the last call. */\r
-static unsigned short usLastTaskCheck = ( unsigned short ) 0;\r
-portBASE_TYPE xReturn = pdTRUE;\r
-\r
- /* Check the tasks are still running by ensuring the check variable\r
- is still incrementing. */\r
-\r
- if( usCheckVariable == usLastTaskCheck )\r
- {\r
- /* The check has not incremented so an error exists. */\r
- xReturn = pdFALSE;\r
- }\r
-\r
- if( xSuspendedQueueSendError == pdTRUE )\r
- {\r
- xReturn = pdFALSE;\r
- }\r
-\r
- if( xSuspendedQueueReceiveError == pdTRUE )\r
- {\r
- xReturn = pdFALSE;\r
- }\r
-\r
- usLastTaskCheck = usCheckVariable;\r
- return xReturn;\r
-}\r
+++ /dev/null
-/*\r
- FreeRTOS V7.0.2 - Copyright (C) 2011 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
-\r
- http://www.FreeRTOS.org - Documentation, latest information, license and\r
- contact details.\r
-\r
- http://www.SafeRTOS.com - A version that is certified for use in safety\r
- critical systems.\r
-\r
- http://www.OpenRTOS.com - Commercial support, development, porting,\r
- licensing and training services.\r
-*/\r
-\r
-#ifndef DYNAMIC_MANIPULATION_H\r
-#define DYNAMIC_MANIPULATION_H\r
-\r
-void vStartDynamicPriorityTasks( void );\r
-portBASE_TYPE xAreDynamicPriorityTasksStillRunning( void );\r
-\r
-#endif\r
-\r
-\r
+++ /dev/null
-/** @file gio.c \r
-* @brief GIO Driver Inmplmentation File\r
-* @date 10.June.2010\r
-* @version 1.01.000\r
-*\r
-*/\r
-\r
-/* (c) Texas Instruments 2009-2010, All rights reserved. */\r
-\r
-\r
-#include "gio.h"\r
-\r
-\r
-/** @fn void gioInit(void)\r
-* @brief Initializes the GIO Driver\r
-*\r
-* This function initializes the GIO module and set the GIO ports \r
-* to the inital values.\r
-*/\r
-void gioInit(void)\r
-{\r
- /** bring GIO module out of reset */\r
- gioREG->GCR0 = 1;\r
- gioREG->INTENACLR = 0xFF;\r
- gioREG->LVLCLR = 0xFF; \r
-\r
- /** @b initalise @b Port @b A */\r
-\r
- /** - Port A output values */\r
- gioPORTA->DOUT = 0 /* Bit 0 */\r
- | (0 << 1) /* Bit 1 */\r
- | (0 << 2) /* Bit 2 */\r
- | (0 << 3) /* Bit 3 */\r
- | (0 << 4) /* Bit 4 */\r
- | (0 << 5) /* Bit 5 */\r
- | (0 << 6) /* Bit 6 */\r
- | (0 << 7); /* Bit 7 */\r
-\r
- /** - Port A direction */\r
- gioPORTA->DIR = 1 /* Bit 0 */\r
- | (1 << 1) /* Bit 1 */\r
- | (0 << 2) /* Bit 2 */\r
- | (0 << 3) /* Bit 3 */\r
- | (0 << 4) /* Bit 4 */\r
- | (0 << 5) /* Bit 5 */\r
- | (0 << 6) /* Bit 6 */\r
- | (0 << 7); /* Bit 7 */\r
-\r
- /** - Port A open drain enable */\r
- gioPORTA->PDR = 0 /* Bit 0 */\r
- | (0 << 1) /* Bit 1 */\r
- | (0 << 2) /* Bit 2 */\r
- | (0 << 3) /* Bit 3 */\r
- | (0 << 4) /* Bit 4 */\r
- | (0 << 5) /* Bit 5 */\r
- | (0 << 6) /* Bit 6 */\r
- | (0 << 7); /* Bit 7 */\r
-\r
- /** - Port A pullup / pulldown selection */\r
- gioPORTA->PSL = 0 /* Bit 0 */\r
- | (0 << 1) /* Bit 1 */\r
- | (0 << 2) /* Bit 2 */\r
- | (0 << 3) /* Bit 3 */\r
- | (0 << 4) /* Bit 4 */\r
- | (0 << 5) /* Bit 5 */\r
- | (0 << 6) /* Bit 6 */\r
- | (0 << 7); /* Bit 7 */\r
-\r
- /** - Port A pullup / pulldown enable*/\r
- gioPORTA->PULDIS = 0 /* Bit 0 */\r
- | (0 << 1) /* Bit 1 */\r
- | (0 << 2) /* Bit 2 */\r
- | (0 << 3) /* Bit 3 */\r
- | (0 << 4) /* Bit 4 */\r
- | (0 << 5) /* Bit 5 */\r
- | (0 << 6) /* Bit 6 */\r
- | (0 << 7); /* Bit 7 */\r
-\r
- /** @b initalise @b Port @b B */\r
-\r
- /** - Port B output values */\r
- gioPORTB->DOUT = 0 /* Bit 0 */\r
- | (0 << 1) /* Bit 1 */\r
- | (0 << 2) /* Bit 2 */\r
- | (0 << 3) /* Bit 3 */\r
- | (0 << 4) /* Bit 4 */\r
- | (0 << 5) /* Bit 5 */\r
- | (0 << 6) /* Bit 6 */\r
- | (0 << 7); /* Bit 7 */\r
-\r
- /** - Port B direction */\r
- gioPORTB->DIR = 0 /* Bit 0 */\r
- | (0 << 1) /* Bit 1 */\r
- | (0 << 2) /* Bit 2 */\r
- | (0 << 3) /* Bit 3 */\r
- | (0 << 4) /* Bit 4 */\r
- | (0 << 5) /* Bit 5 */\r
- | (0 << 6) /* Bit 6 */\r
- | (0 << 7); /* Bit 7 */\r
-\r
- /** - Port B open drain enable */\r
- gioPORTB->PDR = 0 /* Bit 0 */\r
- | (0 << 1) /* Bit 1 */\r
- | (0 << 2) /* Bit 2 */\r
- | (0 << 3) /* Bit 3 */\r
- | (0 << 4) /* Bit 4 */\r
- | (0 << 5) /* Bit 5 */\r
- | (0 << 6) /* Bit 6 */\r
- | (0 << 7); /* Bit 7 */\r
-\r
- /** - Port B pullup / pulldown selection */\r
- gioPORTB->PSL = 0 /* Bit 0 */\r
- | (0 << 1) /* Bit 1 */\r
- | (0 << 2) /* Bit 2 */\r
- | (0 << 3) /* Bit 3 */\r
- | (0 << 4) /* Bit 4 */\r
- | (0 << 5) /* Bit 5 */\r
- | (0 << 6) /* Bit 6 */\r
- | (0 << 7); /* Bit 7 */\r
-\r
- /** - Port B pullup / pulldown enable*/\r
- gioPORTB->PULDIS = 0 /* Bit 0 */\r
- | (0 << 1) /* Bit 1 */\r
- | (0 << 2) /* Bit 2 */\r
- | (0 << 3) /* Bit 3 */\r
- | (0 << 4) /* Bit 4 */\r
- | (0 << 5) /* Bit 5 */\r
- | (0 << 6) /* Bit 6 */\r
- | (0 << 7); /* Bit 7 */\r
-\r
-\r
- /** @b initalise @b interrupts */\r
-\r
- /** - interrupt polarity */\r
- gioREG->POL = 0 /* Bit 0 */\r
- | (0 << 1) /* Bit 1 */\r
- | (0 << 2) /* Bit 2 */\r
- | (0 << 3) /* Bit 3 */\r
- | (0 << 4) /* Bit 4 */\r
- | (0 << 5) /* Bit 5 */\r
- | (0 << 6) /* Bit 6 */\r
- | (0 << 7); /* Bit 7 */\r
-\r
- /** - interrupt level */\r
- gioREG->LVLSET = 0 /* Bit 0 */\r
- | (0 << 1) /* Bit 1 */\r
- | (0 << 2) /* Bit 2 */\r
- | (0 << 3) /* Bit 3 */\r
- | (0 << 4) /* Bit 4 */\r
- | (0 << 5) /* Bit 5 */\r
- | (0 << 6) /* Bit 6 */\r
- | (0 << 7); /* Bit 7 */\r
-\r
-\r
- /** - clear all pending interrupts */\r
- gioREG->FLG = 0xFF;\r
-\r
- /** - enable interrupts */\r
- gioREG->INTENASET = 0 /* Bit 0 */\r
- | (0 << 1) /* Bit 1 */\r
- | (0 << 2) /* Bit 2 */\r
- | (0 << 3) /* Bit 3 */\r
- | (0 << 4) /* Bit 4 */\r
- | (0 << 5) /* Bit 5 */\r
- | (0 << 6) /* Bit 6 */\r
- | (0 << 7); /* Bit 7 */\r
-}\r
-\r
-\r
-/** @fn void gioSetDirection(gioPORT_t *port, unsigned dir)\r
-* @brief Set Port Direction\r
-* @param[in] port pointer to GIO port:\r
-* - gioPORTA: PortA pointer\r
-* - gioPORTB: PortB pointer\r
-* @param[in] dir value to write to DIR register\r
-*\r
-* Set the direction of GIO pins at runtime.\r
-*/\r
-void gioSetDirection(gioPORT_t *port, unsigned dir)\r
-{\r
- port->DIR = dir;\r
-}\r
-\r
-\r
-/** @fn void gioSetBit(gioPORT_t *port, unsigned bit, unsigned value)\r
-* @brief Write Bit\r
-* @param[in] port pointer to GIO port:\r
-* - gioPORTA: PortA pointer\r
-* - gioPORTB: PortB pointer\r
-* @param[in] bit number 0-7 that specifies the bit to be written to.\r
-* - 0: LSB\r
-* - 7: MSB\r
-* @param[in] value binrary value to write to bit\r
-*\r
-* Writes a value to the specified pin of the given GIO port\r
-*/\r
-void gioSetBit(gioPORT_t *port, unsigned bit, unsigned value)\r
-{\r
- if (value)\r
- {\r
- port->DSET = 1 << bit;\r
- }\r
- else\r
- {\r
- port->DCLR = 1 << bit;\r
- }\r
-}\r
-\r
-\r
-/** @fn void gioSetPort(gioPORT_t *port, unsigned value)\r
-* @brief Write Port Value\r
-* @param[in] port pointer to GIO port:\r
-* - gioPORTA: PortA pointer\r
-* - gioPORTB: PortB pointer\r
-* @param[in] value value to write to port\r
-*\r
-* Writes a value to all pin of a given GIO port\r
-*/\r
-void gioSetPort(gioPORT_t *port, unsigned value)\r
-{\r
- port->DOUT = value;\r
-}\r
-\r
-\r
-/** @fn unsigned gioGetBit(gioPORT_t *port, unsigned bit)\r
-* @brief Read Bit\r
-* @param[in] port pointer to GIO port:\r
-* - gioPORTA: PortA pointer\r
-* - gioPORTB: PortB pointer\r
-* @param[in] bit number 0-7 that specifies the bit to be written to.\r
-* - 0: LSB\r
-* - 7: MSB\r
-*\r
-* Reads a the current value from the specified pin of the given GIO port\r
-*/\r
-unsigned gioGetBit(gioPORT_t *port, unsigned bit)\r
-{\r
- return (port->DIN >> bit) & 1U;\r
-}\r
-\r
-\r
-/** @fn unsigned gioGetPort(gioPORT_t *port)\r
-* @brief Read Port Value\r
-* @param[in] port pointer to GIO port:\r
-* - gioPORTA: PortA pointer\r
-* - gioPORTB: PortB pointer\r
-*\r
-* Reads a the current value of a given GIO port\r
-*/\r
-unsigned gioGetPort(gioPORT_t *port)\r
-{\r
- return port->DIN;\r
-}\r
-\r
-\r
-/** @fn void gioEnableNotification(unsigned bit)\r
-* @brief Enable Interrupt\r
-* @param[in] bit interrupt pin to enable\r
-* - 0: LSB\r
-* - 7: MSB\r
-*\r
-* Enables an innterrupt pin of PortA\r
-*/\r
-void gioEnableNotification(unsigned bit)\r
-{\r
- gioREG->INTENASET = 1 << bit;\r
-}\r
-\r
-\r
-/** @fn void gioDisableNotification(unsigned bit)\r
-* @brief Disable Interrupt\r
-* @param[in] bit interrupt pin to enable\r
-* - 0: LSB\r
-* - 7: MSB\r
-*\r
-* Disables an innterrupt pin of PortA\r
-*/\r
-void gioDisableNotification(unsigned bit)\r
-{\r
- gioREG->INTENACLR = 1 << bit;\r
-}\r
+++ /dev/null
-/** @file gio.h\r
-* @brief GIO Driver Definition File\r
-* @date 11.August.2009\r
-* @version 1.01.000\r
-* \r
-*/\r
-\r
-/* (c) Texas Instruments 2009-2010, All rights reserved. */\r
-\r
-\r
-#ifndef __GIO_H__\r
-#define __GIO_H__\r
-\r
-/** @struct gioBase\r
-* @brief GIO Base Register Definition\r
-*\r
-* This structure is used to access the GIO module egisters.\r
-*/\r
-/** @typedef gioBASE_t\r
-* @brief GIO Register Frame Type Definition\r
-*\r
-* This type is used to access the GIO Registers.\r
-*/\r
-typedef volatile struct gioBase\r
-{\r
- unsigned GCR0; /**< 0x0000: Global Control Register */\r
- unsigned PWDN; /**< 0x0004: Power Down Register */\r
- unsigned INTDET; /**< 0x0008: Interrupt Detect Regsiter*/\r
- unsigned POL; /**< 0x000C: Interrupt Polarity Register */\r
- unsigned INTENASET; /**< 0x0010: Interrupt Enable Set Register */\r
- unsigned INTENACLR; /**< 0x0014: Interrupt Enable Clear Register */\r
- unsigned LVLSET; /**< 0x0018: Interrupt Priority Set Register */\r
- unsigned LVLCLR; /**< 0x001C: Interrupt Priority Clear Register */\r
- unsigned FLG; /**< 0x0020: Interrupt Flag Register */\r
- unsigned OFFSET0; /**< 0x0024: Interrupt Offset A Register */\r
- unsigned OFFSET1; /**< 0x0028: Interrupt Offset B Register */\r
-} gioBASE_t;\r
-\r
-\r
-/** @struct gioPort\r
-* @brief GIO Port Register Definition\r
-*/\r
-/** @typedef gioPORT_t\r
-* @brief GIO Port Register Type Definition\r
-*\r
-* This type is used to access the GIO Port Registers.\r
-*/\r
-typedef volatile struct gioPort\r
-{\r
- unsigned DIR; /**< 0x0000: Data Direction Register */\r
- unsigned DIN; /**< 0x0004: Data Input Register */\r
- unsigned DOUT; /**< 0x0008: Data Output Register */\r
- unsigned DSET; /**< 0x000C: Data Output Set Register */\r
- unsigned DCLR; /**< 0x0010: Data Output Clear Register */\r
- unsigned PDR; /**< 0x0014: Open Drain Regsiter */\r
- unsigned PULDIS; /**< 0x0018: Pullup Disable Register */\r
- unsigned PSL; /**< 0x001C: Pull Up/Down Selection Register */\r
-} gioPORT_t;\r
-\r
-\r
-/** @def gioREG\r
-* @brief GIO Register Frame Pointer\r
-*\r
-* This pointer is used by the GIO driver to access the gio module registers.\r
-*/\r
-#define gioREG ((gioBASE_t *)0xFFF7BC00U)\r
-\r
-/** @def gioPORTA\r
-* @brief GIO Port (A) Register Pointer\r
-*\r
-* Pointer used by the GIO driver to access PORTA\r
-*/\r
-#define gioPORTA ((gioPORT_t *)0xFFF7BC34U)\r
-\r
-/** @def gioPORTB\r
-* @brief GIO Port (B) Register Pointer\r
-*\r
-* Pointer used by the GIO driver to access PORTB\r
-*/\r
-#define gioPORTB ((gioPORT_t *)0xFFF7BC54U)\r
-\r
-\r
-/* GIO Interface Functions */\r
-void gioInit(void);\r
-void gioSetDirection(gioPORT_t *port, unsigned dir);\r
-void gioSetBit(gioPORT_t *port, unsigned bit, unsigned value);\r
-void gioSetPort(gioPORT_t *port, unsigned value);\r
-unsigned gioGetBit(gioPORT_t *port, unsigned bit);\r
-unsigned gioGetPort(gioPORT_t *port);\r
-void gioEnableNotification(unsigned bit);\r
-void gioDisableNotification(unsigned bit);\r
-void gioNotification(int bit);\r
-\r
-#endif\r
+++ /dev/null
-/*\r
- FreeRTOS V7.0.2 - Copyright (C) 2011 Real Time Engineers Ltd.\r
-\r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
-\r
- http://www.FreeRTOS.org - Documentation, latest information, license and\r
- contact details.\r
-\r
- http://www.SafeRTOS.com - A version that is certified for use in safety\r
- critical systems.\r
-\r
- http://www.OpenRTOS.com - Commercial support, development, porting,\r
- licensing and training services.\r
-*/\r
-\r
-#include "FreeRTOS.h"\r
-#include "Task.h"\r
-#include "gio.h"\r
-#include "het.h"\r
-\r
-/*\r
- * Task that flashes the LEDS on the USB stick.\r
- *\r
- * This task is also run in Thumb mode to test the ARM/THUMB context switch\r
- */\r
-\r
-#pragma TASK(vLedTask)\r
-#pragma CODE_STATE(vLedTask, 16)\r
-\r
-void vLedTask(void *pvParameters)\r
-{\r
- unsigned led = 0;\r
- unsigned count = 0;\r
- unsigned colour = 0;\r
-\r
- /* Initalise the IO ports that drive the LEDs */\r
- gioSetDirection(hetPORT, 0xFFFFFFFF);\r
- /* switch all leds off */\r
- gioSetPort(hetPORT, 0x08110034);\r
-\r
- for(;;)\r
- {\r
- /* toggle on/off */\r
- led ^= 1;\r
- /* switch TOP row */\r
- gioSetBit(hetPORT, 25, led);\r
- gioSetBit(hetPORT, 18, led);\r
- gioSetBit(hetPORT, 29, led);\r
- /* switch BOTTOM row */\r
- gioSetBit(hetPORT, 17, led ^ 1);\r
- gioSetBit(hetPORT, 31, led ^ 1);\r
- gioSetBit(hetPORT, 0, led ^ 1);\r
- vTaskDelay(500);\r
-\r
- if (++count > 5)\r
- {\r
- count = 0;\r
- /* both leds to off */\r
- gioSetBit(hetPORT, 2, 1); gioSetBit(hetPORT, 5, 1); gioSetBit(hetPORT, 20, 1);\r
- gioSetBit(hetPORT, 4, 1); gioSetBit(hetPORT, 27, 1); gioSetBit(hetPORT, 16, 1);\r
- switch(colour)\r
- {\r
- case 0:\r
- gioSetBit(hetPORT, 2, 0); /* red */\r
- gioSetBit(hetPORT, 4, 0);\r
- colour++;\r
- continue;\r
- case 1:\r
- gioSetBit(hetPORT, 5, 0); /* blue */\r
- gioSetBit(hetPORT, 27, 0);\r
- colour++;\r
- continue;\r
- case 2:\r
- gioSetBit(hetPORT, 20, 0); /* green */\r
- gioSetBit(hetPORT, 16, 0);\r
- colour++;\r
- continue;\r
- }\r
- colour = 0;\r
- }\r
- }\r
-}\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.0.2 - Copyright (C) 2011 Real Time Engineers Ltd.\r
-\r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
-\r
- http://www.FreeRTOS.org - Documentation, latest information, license and\r
- contact details.\r
-\r
- http://www.SafeRTOS.com - A version that is certified for use in safety\r
- critical systems.\r
-\r
- http://www.OpenRTOS.com - Commercial support, development, porting,\r
- licensing and training services.\r
-*/\r
-\r
-\r
-#ifndef __HET_H__\r
-#define __HET_H__\r
-\r
-#include "gio.h"\r
-\r
-/** @struct hetBase\r
-* @brief HET Register Definition\r
-*\r
-* This structure is used to access the HET module egisters.\r
-*/\r
-/** @typedef hetBASE_t\r
-* @brief HET Register Frame Type Definition\r
-*\r
-* This type is used to access the HET Registers.\r
-*/\r
-typedef volatile struct hetBase\r
-{\r
- unsigned GCR; /**< 0x0000: Global control register */\r
- unsigned PFR; /**< 0x0004: Prescale factor register */\r
- unsigned ADDR; /**< 0x0008: Current address register */\r
- unsigned OFF1; /**< 0x000C: Interrupt offset register 1 */\r
- unsigned OFF2; /**< 0x0010: Interrupt offset register 2 */\r
- unsigned INTENAS; /**< 0x0014: Interrupt enable set register */\r
- unsigned INTENAC; /**< 0x0018: Interrupt enable clear register */\r
- unsigned EXC1; /**< 0x001C: Exeption control register 1 */\r
- unsigned EXC2; /**< 0x0020: Exeption control register 2 */\r
- unsigned PRY; /**< 0x0024: Interrupt priority register */\r
- unsigned FLG; /**< 0x0028: Interrupt flag register */\r
- unsigned : 32U; /**< 0x002C: Reserved */\r
- unsigned : 32U; /**< 0x0030: Reserved */\r
- unsigned HRSH; /**< 0x0034: High resoltion share register */\r
- unsigned XOR; /**< 0x0038: XOR share register */\r
- unsigned REQENS; /**< 0x003C: Request enable set register */\r
- unsigned REQENC; /**< 0x0040: Request enable clear register */\r
- unsigned REQDS; /**< 0x0044: Request destination select register */\r
- unsigned : 32U; /**< 0x0048: Reserved */\r
- unsigned DIR; /**< 0x004C: Direction register */\r
- unsigned DIN; /**< 0x0050: Data input register */\r
- unsigned DOUT; /**< 0x0054: Data output register */\r
- unsigned DSET; /**< 0x0058: Data output set register */\r
- unsigned DCLR; /**< 0x005C: Data output clear register */\r
- unsigned PDR; /**< 0x0060: Open drain register */\r
- unsigned PULDIS; /**< 0x0064: Pull disable register */\r
- unsigned PSL; /**< 0x0068: Pull select register */\r
- unsigned : 32U; /**< 0x006C: Reserved */\r
- unsigned : 32U; /**< 0x0070: Reserved */\r
- unsigned PCREG; /**< 0x0074: Parity control register */\r
- unsigned PAR; /**< 0x0078: Parity address register */\r
- unsigned PPR; /**< 0x007C: Parity pin select register */\r
- unsigned SFPRLD; /**< 0x0080: Suppression filter preload register */\r
- unsigned SFENA; /**< 0x0084: Suppression filter enable register */\r
- unsigned : 32U; /**< 0x0088: Reserved */\r
- unsigned LBPSEL; /**< 0x008C: Loop back pair select register */\r
- unsigned LBPDIR; /**< 0x0090: Loop back pair direction register */\r
-} hetBASE_t;\r
-\r
-\r
-/** @def hetREG\r
-* @brief HET Register Frame Pointer\r
-*\r
-* This pointer is used by the HET driver to access the het module registers.\r
-*/\r
-#define hetREG ((hetBASE_t *)0xFFF7B800U)\r
-\r
-\r
-/** @def hetPORT\r
-* @brief HET GIO Port Register Pointer\r
-*\r
-* Pointer used by the GIO driver to access I/O PORT of HET\r
-* (use the GIO drivers to access the port pins).\r
-*/\r
-#define hetPORT ((gioPORT_t *)0xFFF7B84CU)\r
-\r
-#endif\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-/*\r
- * This version of integer. c is for use on systems that have limited stack\r
- * space and no display facilities. The complete version can be found in\r
- * the Demo/Common/Full directory.\r
- *\r
- * As with the full version, the tasks created in this file are a good test \r
- * of the scheduler context switch mechanism. The processor has to access \r
- * 32bit variables in two or four chunks (depending on the processor). The low \r
- * priority of these tasks means there is a high probability that a context \r
- * switch will occur mid calculation. See flop. c documentation for \r
- * more information.\r
- *\r
- */\r
-\r
-/*\r
-Changes from V1.2.1\r
-\r
- + The constants used in the calculations are larger to ensure the\r
- optimiser does not truncate them to 16 bits.\r
-\r
-Changes from V1.2.3\r
-\r
- + uxTaskCheck is now just used as a boolean. Instead of incrementing\r
- the variable each cycle of the task, the variable is simply set to\r
- true. sAreIntegerMathsTaskStillRunning() sets it back to false and\r
- expects it to have been set back to true by the time it is called\r
- again.\r
- + A division has been included in the calculation.\r
-*/\r
-\r
-#include <stdlib.h>\r
-\r
-/* Scheduler include files. */\r
-#include "FreeRTOS.h"\r
-#include "task.h"\r
-\r
-/* Demo program include files. */\r
-#include "integer.h"\r
-\r
-/* The constants used in the calculation. */\r
-#define intgCONST1 ( ( long ) 123 )\r
-#define intgCONST2 ( ( long ) 234567 )\r
-#define intgCONST3 ( ( long ) -3 )\r
-#define intgCONST4 ( ( long ) 7 )\r
-#define intgEXPECTED_ANSWER ( ( ( intgCONST1 + intgCONST2 ) * intgCONST3 ) / intgCONST4 )\r
-\r
-#define intgSTACK_SIZE configMINIMAL_STACK_SIZE\r
-\r
-/* As this is the minimal version, we will only create one task. */\r
-#define intgNUMBER_OF_TASKS ( 1 )\r
-\r
-/* The task function. Repeatedly performs a 32 bit calculation, checking the\r
-result against the expected result. If the result is incorrect then the\r
-context switch must have caused some corruption. */\r
-static portTASK_FUNCTION_PROTO( vCompeteingIntMathTask, pvParameters );\r
-\r
-/* Variables that are set to true within the calculation task to indicate\r
-that the task is still executing. The check task sets the variable back to\r
-false, flagging an error if the variable is still false the next time it\r
-is called. */\r
-static volatile signed portBASE_TYPE xTaskCheck[ intgNUMBER_OF_TASKS ] = { ( signed portBASE_TYPE ) pdFALSE };\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-void vStartIntegerMathTasks( unsigned portBASE_TYPE uxPriority )\r
-{\r
-short sTask;\r
-\r
- for( sTask = 0; sTask < intgNUMBER_OF_TASKS; sTask++ )\r
- {\r
- xTaskCreate( vCompeteingIntMathTask, ( signed char * ) "IntMath", intgSTACK_SIZE, ( void * ) &( xTaskCheck[ sTask ] ), uxPriority, ( xTaskHandle * ) NULL );\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static portTASK_FUNCTION( vCompeteingIntMathTask, pvParameters )\r
-{\r
-/* These variables are all effectively set to constants so they are volatile to\r
-ensure the compiler does not just get rid of them. */\r
-volatile long lValue;\r
-short sError = pdFALSE;\r
-volatile signed portBASE_TYPE *pxTaskHasExecuted;\r
-\r
- /* Set a pointer to the variable we are going to set to true each\r
- iteration. This is also a good test of the parameter passing mechanism\r
- within each port. */\r
- pxTaskHasExecuted = ( volatile signed portBASE_TYPE * ) pvParameters;\r
-\r
- /* Keep performing a calculation and checking the result against a constant. */\r
- for( ;; )\r
- {\r
- /* Perform the calculation. This will store partial value in\r
- registers, resulting in a good test of the context switch mechanism. */\r
- lValue = intgCONST1;\r
- lValue += intgCONST2;\r
-\r
- /* Yield in case cooperative scheduling is being used. */\r
- #if configUSE_PREEMPTION == 0\r
- {\r
- taskYIELD();\r
- }\r
- #endif\r
-\r
- /* Finish off the calculation. */\r
- lValue *= intgCONST3;\r
- lValue /= intgCONST4;\r
-\r
- /* If the calculation is found to be incorrect we stop setting the \r
- TaskHasExecuted variable so the check task can see an error has \r
- occurred. */\r
- if( lValue != intgEXPECTED_ANSWER ) /*lint !e774 volatile used to prevent this being optimised out. */\r
- {\r
- sError = pdTRUE;\r
- }\r
-\r
- if( sError == pdFALSE )\r
- {\r
- /* We have not encountered any errors, so set the flag that show\r
- we are still executing. This will be periodically cleared by\r
- the check task. */\r
- portENTER_CRITICAL();\r
- *pxTaskHasExecuted = pdTRUE;\r
- portEXIT_CRITICAL();\r
- }\r
-\r
- /* Yield in case cooperative scheduling is being used. */\r
- #if configUSE_PREEMPTION == 0\r
- {\r
- taskYIELD();\r
- }\r
- #endif\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-/* This is called to check that all the created tasks are still running. */\r
-portBASE_TYPE xAreIntegerMathsTaskStillRunning( void )\r
-{\r
-portBASE_TYPE xReturn = pdTRUE;\r
-short sTask;\r
-\r
- /* Check the maths tasks are still running by ensuring their check variables \r
- are still being set to true. */\r
- for( sTask = 0; sTask < intgNUMBER_OF_TASKS; sTask++ )\r
- {\r
- if( xTaskCheck[ sTask ] == pdFALSE )\r
- {\r
- /* The check has not incremented so an error exists. */\r
- xReturn = pdFALSE;\r
- }\r
-\r
- /* Reset the check variable so we can tell if it has been set by\r
- the next time around. */\r
- xTaskCheck[ sTask ] = pdFALSE;\r
- }\r
-\r
- return xReturn;\r
-}\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-#ifndef INTEGER_TASKS_H\r
-#define INTEGER_TASKS_H\r
-\r
-void vStartIntegerMathTasks( unsigned portBASE_TYPE uxPriority );\r
-portBASE_TYPE xAreIntegerMathsTaskStillRunning( void );\r
-\r
-#endif\r
-\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-#ifndef PARTEST_H\r
-#define PARTEST_H\r
-\r
-#define partstDEFAULT_PORT_ADDRESS ( ( unsigned short ) 0x378 )\r
-\r
-void vParTestInitialise( void );\r
-void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue );\r
-void vParTestToggleLED( unsigned portBASE_TYPE uxLED );\r
-\r
-#endif\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-/*\r
- The tasks defined on this page demonstrate the use of recursive mutexes.\r
-\r
- For recursive mutex functionality the created mutex should be created using\r
- xSemaphoreCreateRecursiveMutex(), then be manipulated\r
- using the xSemaphoreTakeRecursive() and xSemaphoreGiveRecursive() API\r
- functions.\r
-\r
- This demo creates three tasks all of which access the same recursive mutex:\r
-\r
- prvRecursiveMutexControllingTask() has the highest priority so executes \r
- first and grabs the mutex. It then performs some recursive accesses - \r
- between each of which it sleeps for a short period to let the lower \r
- priority tasks execute. When it has completed its demo functionality\r
- it gives the mutex back before suspending itself.\r
-\r
- prvRecursiveMutexBlockingTask() attempts to access the mutex by performing\r
- a blocking 'take'. The blocking task has a lower priority than the \r
- controlling task so by the time it executes the mutex has already been\r
- taken by the controlling task, causing the blocking task to block. It \r
- does not unblock until the controlling task has given the mutex back, \r
- and it does not actually run until the controlling task has suspended \r
- itself (due to the relative priorities). When it eventually does obtain\r
- the mutex all it does is give the mutex back prior to also suspending \r
- itself. At this point both the controlling task and the blocking task are \r
- suspended.\r
-\r
- prvRecursiveMutexPollingTask() runs at the idle priority. It spins round\r
- a tight loop attempting to obtain the mutex with a non-blocking call. As\r
- the lowest priority task it will not successfully obtain the mutex until\r
- both the controlling and blocking tasks are suspended. Once it eventually \r
- does obtain the mutex it first unsuspends both the controlling task and\r
- blocking task prior to giving the mutex back - resulting in the polling\r
- task temporarily inheriting the controlling tasks priority.\r
-*/\r
-\r
-/* Scheduler include files. */\r
-#include "FreeRTOS.h"\r
-#include "task.h"\r
-#include "semphr.h"\r
-\r
-/* Demo app include files. */\r
-#include "recmutex.h"\r
-\r
-/* Priorities assigned to the three tasks. */\r
-#define recmuCONTROLLING_TASK_PRIORITY ( tskIDLE_PRIORITY + 2 )\r
-#define recmuBLOCKING_TASK_PRIORITY ( tskIDLE_PRIORITY + 1 )\r
-#define recmuPOLLING_TASK_PRIORITY ( tskIDLE_PRIORITY + 0 )\r
-\r
-/* The recursive call depth. */\r
-#define recmuMAX_COUNT ( 10 )\r
-\r
-/* Misc. */\r
-#define recmuSHORT_DELAY ( 20 / portTICK_RATE_MS )\r
-#define recmuNO_DELAY ( ( portTickType ) 0 )\r
-#define recmuTWO_TICK_DELAY ( ( portTickType ) 2 )\r
-\r
-/* The three tasks as described at the top of this file. */\r
-static void prvRecursiveMutexControllingTask( void *pvParameters );\r
-static void prvRecursiveMutexBlockingTask( void *pvParameters );\r
-static void prvRecursiveMutexPollingTask( void *pvParameters );\r
-\r
-/* The mutex used by the demo. */\r
-static xSemaphoreHandle xMutex;\r
-\r
-/* Variables used to detect and latch errors. */\r
-static volatile portBASE_TYPE xErrorOccurred = pdFALSE, xControllingIsSuspended = pdFALSE, xBlockingIsSuspended = pdFALSE;\r
-static volatile unsigned portBASE_TYPE uxControllingCycles = 0, uxBlockingCycles = 0, uxPollingCycles = 0;\r
-\r
-/* Handles of the two higher priority tasks, required so they can be resumed \r
-(unsuspended). */\r
-static xTaskHandle xControllingTaskHandle, xBlockingTaskHandle;\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-void vStartRecursiveMutexTasks( void )\r
-{\r
- /* Just creates the mutex and the three tasks. */\r
-\r
- xMutex = xSemaphoreCreateRecursiveMutex();\r
-\r
- /* vQueueAddToRegistry() adds the mutex to the registry, if one is\r
- in use. The registry is provided as a means for kernel aware \r
- debuggers to locate mutex and has no purpose if a kernel aware debugger\r
- is not being used. The call to vQueueAddToRegistry() will be removed\r
- by the pre-processor if configQUEUE_REGISTRY_SIZE is not defined or is \r
- defined to be less than 1. */\r
- vQueueAddToRegistry( ( xQueueHandle ) xMutex, ( signed portCHAR * ) "Recursive_Mutex" );\r
-\r
-\r
- if( xMutex != NULL )\r
- {\r
- xTaskCreate( prvRecursiveMutexControllingTask, ( signed portCHAR * ) "Rec1", configMINIMAL_STACK_SIZE, NULL, recmuCONTROLLING_TASK_PRIORITY, &xControllingTaskHandle );\r
- xTaskCreate( prvRecursiveMutexBlockingTask, ( signed portCHAR * ) "Rec2", configMINIMAL_STACK_SIZE, NULL, recmuBLOCKING_TASK_PRIORITY, &xBlockingTaskHandle );\r
- xTaskCreate( prvRecursiveMutexPollingTask, ( signed portCHAR * ) "Rec3", configMINIMAL_STACK_SIZE, NULL, recmuPOLLING_TASK_PRIORITY, NULL );\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvRecursiveMutexControllingTask( void *pvParameters )\r
-{\r
-unsigned portBASE_TYPE ux;\r
-\r
- /* Just to remove compiler warning. */\r
- ( void ) pvParameters;\r
-\r
- for( ;; )\r
- {\r
- /* Should not be able to 'give' the mutex, as we have not yet 'taken'\r
- it. The first time through, the mutex will not have been used yet,\r
- subsequent times through, at this point the mutex will be held by the\r
- polling task. */\r
- if( xSemaphoreGiveRecursive( xMutex ) == pdPASS )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- for( ux = 0; ux < recmuMAX_COUNT; ux++ )\r
- {\r
- /* We should now be able to take the mutex as many times as\r
- we like.\r
- \r
- The first time through the mutex will be immediately available, on\r
- subsequent times through the mutex will be held by the polling task\r
- at this point and this Take will cause the polling task to inherit\r
- the priority of this task. In this case the block time must be\r
- long enough to ensure the polling task will execute again before the\r
- block time expires. If the block time does expire then the error\r
- flag will be set here. */\r
- if( xSemaphoreTakeRecursive( xMutex, recmuTWO_TICK_DELAY ) != pdPASS )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- /* Ensure the other task attempting to access the mutex (and the\r
- other demo tasks) are able to execute to ensure they either block\r
- (where a block time is specified) or return an error (where no \r
- block time is specified) as the mutex is held by this task. */\r
- vTaskDelay( recmuSHORT_DELAY );\r
- }\r
-\r
- /* For each time we took the mutex, give it back. */\r
- for( ux = 0; ux < recmuMAX_COUNT; ux++ )\r
- {\r
- /* Ensure the other task attempting to access the mutex (and the\r
- other demo tasks) are able to execute. */\r
- vTaskDelay( recmuSHORT_DELAY );\r
-\r
- /* We should now be able to give the mutex as many times as we\r
- took it. When the mutex is available again the Blocking task\r
- should be unblocked but not run because it has a lower priority\r
- than this task. The polling task should also not run at this point\r
- as it too has a lower priority than this task. */\r
- if( xSemaphoreGiveRecursive( xMutex ) != pdPASS )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
- }\r
-\r
- /* Having given it back the same number of times as it was taken, we\r
- should no longer be the mutex owner, so the next give sh ould fail. */\r
- if( xSemaphoreGiveRecursive( xMutex ) == pdPASS )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- /* Keep count of the number of cycles this task has performed so a \r
- stall can be detected. */\r
- uxControllingCycles++;\r
-\r
- /* Suspend ourselves to the blocking task can execute. */\r
- xControllingIsSuspended = pdTRUE;\r
- vTaskSuspend( NULL );\r
- xControllingIsSuspended = pdFALSE;\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvRecursiveMutexBlockingTask( void *pvParameters )\r
-{\r
- /* Just to remove compiler warning. */\r
- ( void ) pvParameters;\r
-\r
- for( ;; )\r
- {\r
- /* This task will run while the controlling task is blocked, and the\r
- controlling task will block only once it has the mutex - therefore\r
- this call should block until the controlling task has given up the \r
- mutex, and not actually execute past this call until the controlling \r
- task is suspended. */\r
- if( xSemaphoreTakeRecursive( xMutex, portMAX_DELAY ) == pdPASS )\r
- {\r
- if( xControllingIsSuspended != pdTRUE )\r
- {\r
- /* Did not expect to execute until the controlling task was\r
- suspended. */\r
- xErrorOccurred = pdTRUE;\r
- }\r
- else\r
- {\r
- /* Give the mutex back before suspending ourselves to allow\r
- the polling task to obtain the mutex. */\r
- if( xSemaphoreGiveRecursive( xMutex ) != pdPASS )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- xBlockingIsSuspended = pdTRUE;\r
- vTaskSuspend( NULL );\r
- xBlockingIsSuspended = pdFALSE;\r
- }\r
- }\r
- else\r
- {\r
- /* We should not leave the xSemaphoreTakeRecursive() function\r
- until the mutex was obtained. */\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- /* The controlling and blocking tasks should be in lock step. */\r
- if( uxControllingCycles != ( uxBlockingCycles + 1 ) )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
-\r
- /* Keep count of the number of cycles this task has performed so a \r
- stall can be detected. */\r
- uxBlockingCycles++;\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvRecursiveMutexPollingTask( void *pvParameters )\r
-{\r
- /* Just to remove compiler warning. */\r
- ( void ) pvParameters;\r
-\r
- for( ;; )\r
- {\r
- /* Keep attempting to obtain the mutex. We should only obtain it when\r
- the blocking task has suspended itself, which in turn should only\r
- happen when the controlling task is also suspended. */\r
- if( xSemaphoreTakeRecursive( xMutex, recmuNO_DELAY ) == pdPASS )\r
- {\r
- /* Is the blocking task suspended? */\r
- if( ( xBlockingIsSuspended != pdTRUE ) || ( xControllingIsSuspended != pdTRUE ) )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
- else\r
- {\r
- /* Keep count of the number of cycles this task has performed \r
- so a stall can be detected. */\r
- uxPollingCycles++;\r
-\r
- /* We can resume the other tasks here even though they have a\r
- higher priority than the polling task. When they execute they\r
- will attempt to obtain the mutex but fail because the polling\r
- task is still the mutex holder. The polling task (this task)\r
- will then inherit the higher priority. The Blocking task will\r
- block indefinitely when it attempts to obtain the mutex, the\r
- Controlling task will only block for a fixed period and an\r
- error will be latched if the polling task has not returned the\r
- mutex by the time this fixed period has expired. */\r
- vTaskResume( xBlockingTaskHandle );\r
- vTaskResume( xControllingTaskHandle );\r
- \r
- /* The other two tasks should now have executed and no longer\r
- be suspended. */\r
- if( ( xBlockingIsSuspended == pdTRUE ) || ( xControllingIsSuspended == pdTRUE ) )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- } \r
- \r
- /* Release the mutex, disinheriting the higher priority again. */\r
- if( xSemaphoreGiveRecursive( xMutex ) != pdPASS )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
- }\r
- }\r
-\r
- #if configUSE_PREEMPTION == 0\r
- {\r
- taskYIELD();\r
- }\r
- #endif\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-/* This is called to check that all the created tasks are still running. */\r
-portBASE_TYPE xAreRecursiveMutexTasksStillRunning( void )\r
-{\r
-portBASE_TYPE xReturn;\r
-static unsigned portBASE_TYPE uxLastControllingCycles = 0, uxLastBlockingCycles = 0, uxLastPollingCycles = 0;\r
-\r
- /* Is the controlling task still cycling? */\r
- if( uxLastControllingCycles == uxControllingCycles )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
- else\r
- {\r
- uxLastControllingCycles = uxControllingCycles;\r
- }\r
-\r
- /* Is the blocking task still cycling? */\r
- if( uxLastBlockingCycles == uxBlockingCycles )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
- else\r
- {\r
- uxLastBlockingCycles = uxBlockingCycles;\r
- }\r
-\r
- /* Is the polling task still cycling? */\r
- if( uxLastPollingCycles == uxPollingCycles )\r
- {\r
- xErrorOccurred = pdTRUE;\r
- }\r
- else\r
- {\r
- uxLastPollingCycles = uxPollingCycles;\r
- }\r
-\r
- if( xErrorOccurred == pdTRUE )\r
- {\r
- xReturn = pdFAIL;\r
- }\r
- else\r
- {\r
- xReturn = pdTRUE;\r
- }\r
-\r
- return xReturn;\r
-}\r
-\r
-\r
-\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-#ifndef RECURSIVE_MUTEX_TEST_H\r
-#define RECURSIVE_MUTEX_TEST_H\r
-\r
-void vStartRecursiveMutexTasks( void );\r
-portBASE_TYPE xAreRecursiveMutexTasksStillRunning( void );\r
-\r
-#endif\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-/*\r
- * Creates two sets of two tasks. The tasks within a set share a variable, access \r
- * to which is guarded by a semaphore.\r
- * \r
- * Each task starts by attempting to obtain the semaphore. On obtaining a \r
- * semaphore a task checks to ensure that the guarded variable has an expected \r
- * value. It then clears the variable to zero before counting it back up to the \r
- * expected value in increments of 1. After each increment the variable is checked \r
- * to ensure it contains the value to which it was just set. When the starting \r
- * value is again reached the task releases the semaphore giving the other task in \r
- * the set a chance to do exactly the same thing. The starting value is high \r
- * enough to ensure that a tick is likely to occur during the incrementing loop.\r
- *\r
- * An error is flagged if at any time during the process a shared variable is \r
- * found to have a value other than that expected. Such an occurrence would \r
- * suggest an error in the mutual exclusion mechanism by which access to the \r
- * variable is restricted.\r
- *\r
- * The first set of two tasks poll their semaphore. The second set use blocking \r
- * calls.\r
- *\r
- */\r
-\r
-\r
-#include <stdlib.h>\r
-\r
-/* Scheduler include files. */\r
-#include "FreeRTOS.h"\r
-#include "task.h"\r
-#include "semphr.h"\r
-\r
-/* Demo app include files. */\r
-#include "semtest.h"\r
-\r
-/* The value to which the shared variables are counted. */\r
-#define semtstBLOCKING_EXPECTED_VALUE ( ( unsigned long ) 0xfff )\r
-#define semtstNON_BLOCKING_EXPECTED_VALUE ( ( unsigned long ) 0xff )\r
-\r
-#define semtstSTACK_SIZE configMINIMAL_STACK_SIZE\r
-\r
-#define semtstNUM_TASKS ( 4 )\r
-\r
-#define semtstDELAY_FACTOR ( ( portTickType ) 10 )\r
-\r
-/* The task function as described at the top of the file. */\r
-static portTASK_FUNCTION_PROTO( prvSemaphoreTest, pvParameters );\r
-\r
-/* Structure used to pass parameters to each task. */\r
-typedef struct SEMAPHORE_PARAMETERS\r
-{\r
- xSemaphoreHandle xSemaphore;\r
- volatile unsigned long *pulSharedVariable;\r
- portTickType xBlockTime;\r
-} xSemaphoreParameters;\r
-\r
-/* Variables used to check that all the tasks are still running without errors. */\r
-static volatile short sCheckVariables[ semtstNUM_TASKS ] = { 0 };\r
-static volatile short sNextCheckVariable = 0;\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-void vStartSemaphoreTasks( unsigned portBASE_TYPE uxPriority )\r
-{\r
-xSemaphoreParameters *pxFirstSemaphoreParameters, *pxSecondSemaphoreParameters;\r
-const portTickType xBlockTime = ( portTickType ) 100;\r
-\r
- /* Create the structure used to pass parameters to the first two tasks. */\r
- pxFirstSemaphoreParameters = ( xSemaphoreParameters * ) pvPortMalloc( sizeof( xSemaphoreParameters ) );\r
-\r
- if( pxFirstSemaphoreParameters != NULL )\r
- {\r
- /* Create the semaphore used by the first two tasks. */\r
- vSemaphoreCreateBinary( pxFirstSemaphoreParameters->xSemaphore );\r
-\r
- if( pxFirstSemaphoreParameters->xSemaphore != NULL )\r
- {\r
- /* Create the variable which is to be shared by the first two tasks. */\r
- pxFirstSemaphoreParameters->pulSharedVariable = ( unsigned long * ) pvPortMalloc( sizeof( unsigned long ) );\r
-\r
- /* Initialise the share variable to the value the tasks expect. */\r
- *( pxFirstSemaphoreParameters->pulSharedVariable ) = semtstNON_BLOCKING_EXPECTED_VALUE;\r
-\r
- /* The first two tasks do not block on semaphore calls. */\r
- pxFirstSemaphoreParameters->xBlockTime = ( portTickType ) 0;\r
-\r
- /* Spawn the first two tasks. As they poll they operate at the idle priority. */\r
- xTaskCreate( prvSemaphoreTest, ( signed char * ) "PolSEM1", semtstSTACK_SIZE, ( void * ) pxFirstSemaphoreParameters, tskIDLE_PRIORITY, ( xTaskHandle * ) NULL );\r
- xTaskCreate( prvSemaphoreTest, ( signed char * ) "PolSEM2", semtstSTACK_SIZE, ( void * ) pxFirstSemaphoreParameters, tskIDLE_PRIORITY, ( xTaskHandle * ) NULL );\r
- }\r
- }\r
-\r
- /* Do exactly the same to create the second set of tasks, only this time \r
- provide a block time for the semaphore calls. */\r
- pxSecondSemaphoreParameters = ( xSemaphoreParameters * ) pvPortMalloc( sizeof( xSemaphoreParameters ) );\r
- if( pxSecondSemaphoreParameters != NULL )\r
- {\r
- vSemaphoreCreateBinary( pxSecondSemaphoreParameters->xSemaphore );\r
-\r
- if( pxSecondSemaphoreParameters->xSemaphore != NULL )\r
- {\r
- pxSecondSemaphoreParameters->pulSharedVariable = ( unsigned long * ) pvPortMalloc( sizeof( unsigned long ) );\r
- *( pxSecondSemaphoreParameters->pulSharedVariable ) = semtstBLOCKING_EXPECTED_VALUE;\r
- pxSecondSemaphoreParameters->xBlockTime = xBlockTime / portTICK_RATE_MS;\r
-\r
- xTaskCreate( prvSemaphoreTest, ( signed char * ) "BlkSEM1", semtstSTACK_SIZE, ( void * ) pxSecondSemaphoreParameters, uxPriority, ( xTaskHandle * ) NULL );\r
- xTaskCreate( prvSemaphoreTest, ( signed char * ) "BlkSEM2", semtstSTACK_SIZE, ( void * ) pxSecondSemaphoreParameters, uxPriority, ( xTaskHandle * ) NULL );\r
- }\r
- }\r
-\r
- /* vQueueAddToRegistry() adds the semaphore to the registry, if one is\r
- in use. The registry is provided as a means for kernel aware \r
- debuggers to locate semaphores and has no purpose if a kernel aware debugger\r
- is not being used. The call to vQueueAddToRegistry() will be removed\r
- by the pre-processor if configQUEUE_REGISTRY_SIZE is not defined or is \r
- defined to be less than 1. */\r
- vQueueAddToRegistry( ( xQueueHandle ) pxFirstSemaphoreParameters->xSemaphore, ( signed char * ) "Counting_Sem_1" );\r
- vQueueAddToRegistry( ( xQueueHandle ) pxSecondSemaphoreParameters->xSemaphore, ( signed char * ) "Counting_Sem_2" );\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static portTASK_FUNCTION( prvSemaphoreTest, pvParameters )\r
-{\r
-xSemaphoreParameters *pxParameters;\r
-volatile unsigned long *pulSharedVariable, ulExpectedValue;\r
-unsigned long ulCounter;\r
-short sError = pdFALSE, sCheckVariableToUse;\r
-\r
- /* See which check variable to use. sNextCheckVariable is not semaphore \r
- protected! */\r
- portENTER_CRITICAL();\r
- sCheckVariableToUse = sNextCheckVariable;\r
- sNextCheckVariable++;\r
- portEXIT_CRITICAL();\r
-\r
- /* A structure is passed in as the parameter. This contains the shared \r
- variable being guarded. */\r
- pxParameters = ( xSemaphoreParameters * ) pvParameters;\r
- pulSharedVariable = pxParameters->pulSharedVariable;\r
-\r
- /* If we are blocking we use a much higher count to ensure loads of context\r
- switches occur during the count. */\r
- if( pxParameters->xBlockTime > ( portTickType ) 0 )\r
- {\r
- ulExpectedValue = semtstBLOCKING_EXPECTED_VALUE;\r
- }\r
- else\r
- {\r
- ulExpectedValue = semtstNON_BLOCKING_EXPECTED_VALUE;\r
- }\r
-\r
- for( ;; )\r
- {\r
- /* Try to obtain the semaphore. */\r
- if( xSemaphoreTake( pxParameters->xSemaphore, pxParameters->xBlockTime ) == pdPASS )\r
- {\r
- /* We have the semaphore and so expect any other tasks using the\r
- shared variable to have left it in the state we expect to find\r
- it. */\r
- if( *pulSharedVariable != ulExpectedValue )\r
- {\r
- sError = pdTRUE;\r
- }\r
- \r
- /* Clear the variable, then count it back up to the expected value\r
- before releasing the semaphore. Would expect a context switch or\r
- two during this time. */\r
- for( ulCounter = ( unsigned long ) 0; ulCounter <= ulExpectedValue; ulCounter++ )\r
- {\r
- *pulSharedVariable = ulCounter;\r
- if( *pulSharedVariable != ulCounter )\r
- {\r
- sError = pdTRUE;\r
- }\r
- }\r
-\r
- /* Release the semaphore, and if no errors have occurred increment the check\r
- variable. */\r
- if( xSemaphoreGive( pxParameters->xSemaphore ) == pdFALSE )\r
- {\r
- sError = pdTRUE;\r
- }\r
-\r
- if( sError == pdFALSE )\r
- {\r
- if( sCheckVariableToUse < semtstNUM_TASKS )\r
- {\r
- ( sCheckVariables[ sCheckVariableToUse ] )++;\r
- }\r
- }\r
-\r
- /* If we have a block time then we are running at a priority higher\r
- than the idle priority. This task takes a long time to complete\r
- a cycle (deliberately so to test the guarding) so will be starving\r
- out lower priority tasks. Block for some time to allow give lower\r
- priority tasks some processor time. */\r
- vTaskDelay( pxParameters->xBlockTime * semtstDELAY_FACTOR );\r
- }\r
- else\r
- {\r
- if( pxParameters->xBlockTime == ( portTickType ) 0 )\r
- {\r
- /* We have not got the semaphore yet, so no point using the\r
- processor. We are not blocking when attempting to obtain the\r
- semaphore. */\r
- taskYIELD();\r
- }\r
- }\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-/* This is called to check that all the created tasks are still running. */\r
-portBASE_TYPE xAreSemaphoreTasksStillRunning( void )\r
-{\r
-static short sLastCheckVariables[ semtstNUM_TASKS ] = { 0 };\r
-portBASE_TYPE xTask, xReturn = pdTRUE;\r
-\r
- for( xTask = 0; xTask < semtstNUM_TASKS; xTask++ )\r
- {\r
- if( sLastCheckVariables[ xTask ] == sCheckVariables[ xTask ] )\r
- {\r
- xReturn = pdFALSE;\r
- }\r
-\r
- sLastCheckVariables[ xTask ] = sCheckVariables[ xTask ];\r
- }\r
-\r
- return xReturn;\r
-}\r
-\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-#ifndef SEMAPHORE_TEST_H\r
-#define SEMAPHORE_TEST_H\r
-\r
-void vStartSemaphoreTasks( unsigned portBASE_TYPE uxPriority );\r
-portBASE_TYPE xAreSemaphoreTasksStillRunning( void );\r
-\r
-#endif\r
-\r
stop incrementing its check variable. */\r
static volatile unsigned short usTaskCheck[ mathNUMBER_OF_TASKS ] = { ( unsigned short ) 0 };\r
\r
-/* Must be called by tasks that need to maintain a floating point context. */\r
-void vPortTaskUsesFPU( void );\r
+/* Must be called before any hardware floating point operations are\r
+performed to let the RTOS portable layer know that this task requires\r
+a floating point context. */\r
+#if __TI_VFP_SUPPORT__\r
+ extern void vPortTaskUsesFPU( void );\r
+#endif\r
\r
/*-----------------------------------------------------------*/\r
\r
volatile portDOUBLE dAnswer;\r
short sError = pdFALSE;\r
\r
- /* Must be called before any floating point operations are performed to let\r
- the RTOS portable layer know that this task requires a floating point \r
- context. */\r
- vPortTaskUsesFPU();\r
+\r
+ /* Must be called before any hardware floating point operations are\r
+ performed to let the RTOS portable layer know that this task requires\r
+ a floating point context. */\r
+ #if __TI_VFP_SUPPORT__\r
+ vPortTaskUsesFPU();\r
+ #endif\r
\r
d1 = 123.4567;\r
d2 = 2345.6789;\r
volatile portDOUBLE dAnswer;\r
short sError = pdFALSE;\r
\r
- /* Must be called before any floating point operations are performed to let\r
- the RTOS portable layer know that this task requires a floating point \r
- context. */\r
- vPortTaskUsesFPU();\r
+ /* Must be called before any hardware floating point operations are\r
+ performed to let the RTOS portable layer know that this task requires\r
+ a floating point context. */\r
+ #if __TI_VFP_SUPPORT__\r
+ vPortTaskUsesFPU();\r
+ #endif\r
\r
d1 = -389.38;\r
d2 = 32498.2;\r
size_t xPosition;\r
short sError = pdFALSE;\r
\r
- /* Must be called before any floating point operations are performed to let\r
- the RTOS portable layer know that this task requires a floating point \r
- context. */\r
- vPortTaskUsesFPU();\r
+ /* Must be called before any hardware floating point operations are\r
+ performed to let the RTOS portable layer know that this task requires\r
+ a floating point context. */\r
+ #if __TI_VFP_SUPPORT__\r
+ vPortTaskUsesFPU();\r
+ #endif\r
\r
/* The variable this task increments to show it is still running is passed in \r
as the parameter. */\r
size_t xPosition;\r
short sError = pdFALSE;\r
\r
- /* Must be called before any floating point operations are performed to let\r
- the RTOS portable layer know that this task requires a floating point \r
- context. */\r
- vPortTaskUsesFPU();\r
+ /* Must be called before any hardware floating point operations are\r
+ performed to let the RTOS portable layer know that this task requires\r
+ a floating point context. */\r
+ #if __TI_VFP_SUPPORT__\r
+ vPortTaskUsesFPU();\r
+ #endif\r
\r
/* The variable this task increments to show it is still running is passed in \r
as the parameter. */\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-#ifndef INC_FREERTOS_H\r
-#define INC_FREERTOS_H\r
-\r
-\r
-/*\r
- * Include the generic headers required for the FreeRTOS port being used.\r
- */\r
-#include <stddef.h>\r
-\r
-/* Basic FreeRTOS definitions. */\r
-#include "projdefs.h"\r
-\r
-/* Application specific configuration options. */\r
-#include "FreeRTOSConfig.h"\r
-\r
-/* configUSE_PORT_OPTIMISED_TASK_SELECTION must be defined before portable.h\r
-is included as it is used by the port layer. */\r
-#ifndef configUSE_PORT_OPTIMISED_TASK_SELECTION\r
- #define configUSE_PORT_OPTIMISED_TASK_SELECTION 0\r
-#endif\r
-\r
-/* Definitions specific to the port being used. */\r
-#include "portable.h"\r
-\r
-\r
-/* Defines the prototype to which the application task hook function must\r
-conform. */\r
-typedef portBASE_TYPE (*pdTASK_HOOK_CODE)( void * );\r
-\r
-\r
-\r
-\r
-\r
-/*\r
- * Check all the required application specific macros have been defined.\r
- * These macros are application specific and (as downloaded) are defined\r
- * within FreeRTOSConfig.h.\r
- */\r
-\r
-#ifndef configUSE_PREEMPTION\r
- #error Missing definition: configUSE_PREEMPTION should be defined in FreeRTOSConfig.h as either 1 or 0. See the Configuration section of the FreeRTOS API documentation for details.\r
-#endif\r
-\r
-#ifndef configUSE_IDLE_HOOK\r
- #error Missing definition: configUSE_IDLE_HOOK should be defined in FreeRTOSConfig.h as either 1 or 0. See the Configuration section of the FreeRTOS API documentation for details.\r
-#endif\r
-\r
-#ifndef configUSE_TICK_HOOK\r
- #error Missing definition: configUSE_TICK_HOOK should be defined in FreeRTOSConfig.h as either 1 or 0. See the Configuration section of the FreeRTOS API documentation for details.\r
-#endif\r
-\r
-#ifndef configUSE_CO_ROUTINES\r
- #error Missing definition: configUSE_CO_ROUTINES should be defined in FreeRTOSConfig.h as either 1 or 0. See the Configuration section of the FreeRTOS API documentation for details.\r
-#endif\r
-\r
-#ifndef INCLUDE_vTaskPrioritySet\r
- #error Missing definition: INCLUDE_vTaskPrioritySet should be defined in FreeRTOSConfig.h as either 1 or 0. See the Configuration section of the FreeRTOS API documentation for details.\r
-#endif\r
-\r
-#ifndef INCLUDE_uxTaskPriorityGet\r
- #error Missing definition: INCLUDE_uxTaskPriorityGet should be defined in FreeRTOSConfig.h as either 1 or 0. See the Configuration section of the FreeRTOS API documentation for details.\r
-#endif\r
-\r
-#ifndef INCLUDE_vTaskDelete \r
- #error Missing definition: INCLUDE_vTaskDelete should be defined in FreeRTOSConfig.h as either 1 or 0. See the Configuration section of the FreeRTOS API documentation for details.\r
-#endif\r
-\r
-#ifndef INCLUDE_vTaskSuspend \r
- #error Missing definition: INCLUDE_vTaskSuspend should be defined in FreeRTOSConfig.h as either 1 or 0. See the Configuration section of the FreeRTOS API documentation for details.\r
-#endif\r
-\r
-#ifndef INCLUDE_vTaskDelayUntil\r
- #error Missing definition: INCLUDE_vTaskDelayUntil should be defined in FreeRTOSConfig.h as either 1 or 0. See the Configuration section of the FreeRTOS API documentation for details.\r
-#endif\r
-\r
-#ifndef INCLUDE_vTaskDelay\r
- #error Missing definition: INCLUDE_vTaskDelay should be defined in FreeRTOSConfig.h as either 1 or 0. See the Configuration section of the FreeRTOS API documentation for details.\r
-#endif\r
-\r
-#ifndef configUSE_16_BIT_TICKS\r
- #error Missing definition: configUSE_16_BIT_TICKS should be defined in FreeRTOSConfig.h as either 1 or 0. See the Configuration section of the FreeRTOS API documentation for details.\r
-#endif\r
-\r
-#ifndef INCLUDE_xTaskGetIdleTaskHandle\r
- #define INCLUDE_xTaskGetIdleTaskHandle 0\r
-#endif\r
-\r
-#ifndef INCLUDE_xTimerGetTimerDaemonTaskHandle\r
- #define INCLUDE_xTimerGetTimerDaemonTaskHandle 0\r
-#endif\r
-\r
-#ifndef INCLUDE_xQueueGetMutexHolder\r
- #define INCLUDE_xQueueGetMutexHolder 0\r
-#endif\r
-\r
-#ifndef INCLUDE_pcTaskGetTaskName\r
- #define INCLUDE_pcTaskGetTaskName 0\r
-#endif\r
-\r
-#ifndef configUSE_APPLICATION_TASK_TAG\r
- #define configUSE_APPLICATION_TASK_TAG 0\r
-#endif\r
-\r
-#ifndef INCLUDE_uxTaskGetStackHighWaterMark\r
- #define INCLUDE_uxTaskGetStackHighWaterMark 0\r
-#endif\r
-\r
-#ifndef INCLUDE_eTaskStateGet\r
- #define INCLUDE_eTaskStateGet 0\r
-#endif\r
-\r
-#ifndef configUSE_RECURSIVE_MUTEXES\r
- #define configUSE_RECURSIVE_MUTEXES 0\r
-#endif\r
-\r
-#ifndef configUSE_MUTEXES\r
- #define configUSE_MUTEXES 0\r
-#endif\r
-\r
-#ifndef configUSE_TIMERS\r
- #define configUSE_TIMERS 0\r
-#endif\r
-\r
-#ifndef configUSE_COUNTING_SEMAPHORES\r
- #define configUSE_COUNTING_SEMAPHORES 0\r
-#endif\r
-\r
-#ifndef configUSE_ALTERNATIVE_API\r
- #define configUSE_ALTERNATIVE_API 0\r
-#endif\r
-\r
-#ifndef portCRITICAL_NESTING_IN_TCB\r
- #define portCRITICAL_NESTING_IN_TCB 0\r
-#endif\r
-\r
-#ifndef configMAX_TASK_NAME_LEN\r
- #define configMAX_TASK_NAME_LEN 16\r
-#endif\r
-\r
-#ifndef configIDLE_SHOULD_YIELD\r
- #define configIDLE_SHOULD_YIELD 1\r
-#endif\r
-\r
-#if configMAX_TASK_NAME_LEN < 1\r
- #error configMAX_TASK_NAME_LEN must be set to a minimum of 1 in FreeRTOSConfig.h\r
-#endif\r
-\r
-#ifndef INCLUDE_xTaskResumeFromISR\r
- #define INCLUDE_xTaskResumeFromISR 1\r
-#endif\r
-\r
-#ifndef configASSERT\r
- #define configASSERT( x )\r
-#endif\r
-\r
-#ifndef portALIGNMENT_ASSERT_pxCurrentTCB\r
- #define portALIGNMENT_ASSERT_pxCurrentTCB configASSERT\r
-#endif\r
-\r
-/* The timers module relies on xTaskGetSchedulerState(). */\r
-#if configUSE_TIMERS == 1\r
-\r
- #ifndef configTIMER_TASK_PRIORITY\r
- #error If configUSE_TIMERS is set to 1 then configTIMER_TASK_PRIORITY must also be defined.\r
- #endif /* configTIMER_TASK_PRIORITY */\r
-\r
- #ifndef configTIMER_QUEUE_LENGTH\r
- #error If configUSE_TIMERS is set to 1 then configTIMER_QUEUE_LENGTH must also be defined.\r
- #endif /* configTIMER_QUEUE_LENGTH */\r
-\r
- #ifndef configTIMER_TASK_STACK_DEPTH\r
- #error If configUSE_TIMERS is set to 1 then configTIMER_TASK_STACK_DEPTH must also be defined.\r
- #endif /* configTIMER_TASK_STACK_DEPTH */\r
-\r
-#endif /* configUSE_TIMERS */\r
-\r
-#ifndef INCLUDE_xTaskGetSchedulerState\r
- #define INCLUDE_xTaskGetSchedulerState 0\r
-#endif\r
-\r
-#ifndef INCLUDE_xTaskGetCurrentTaskHandle\r
- #define INCLUDE_xTaskGetCurrentTaskHandle 0\r
-#endif\r
-\r
-\r
-#ifndef portSET_INTERRUPT_MASK_FROM_ISR\r
- #define portSET_INTERRUPT_MASK_FROM_ISR() 0\r
-#endif\r
-\r
-#ifndef portCLEAR_INTERRUPT_MASK_FROM_ISR\r
- #define portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedStatusValue ) ( void ) uxSavedStatusValue\r
-#endif\r
-\r
-#ifndef portCLEAN_UP_TCB\r
- #define portCLEAN_UP_TCB( pxTCB ) ( void ) pxTCB\r
-#endif\r
-\r
-#ifndef portSETUP_TCB\r
- #define portSETUP_TCB( pxTCB ) ( void ) pxTCB\r
-#endif\r
-\r
-#ifndef configQUEUE_REGISTRY_SIZE\r
- #define configQUEUE_REGISTRY_SIZE 0U\r
-#endif\r
-\r
-#if ( configQUEUE_REGISTRY_SIZE < 1 )\r
- #define vQueueAddToRegistry( xQueue, pcName )\r
- #define vQueueUnregisterQueue( xQueue )\r
-#endif\r
-\r
-#ifndef portPOINTER_SIZE_TYPE\r
- #define portPOINTER_SIZE_TYPE unsigned long\r
-#endif\r
-\r
-/* Remove any unused trace macros. */\r
-#ifndef traceSTART\r
- /* Used to perform any necessary initialisation - for example, open a file\r
- into which trace is to be written. */\r
- #define traceSTART()\r
-#endif\r
-\r
-#ifndef traceEND\r
- /* Use to close a trace, for example close a file into which trace has been\r
- written. */\r
- #define traceEND()\r
-#endif\r
-\r
-#ifndef traceTASK_SWITCHED_IN\r
- /* Called after a task has been selected to run. pxCurrentTCB holds a pointer\r
- to the task control block of the selected task. */\r
- #define traceTASK_SWITCHED_IN()\r
-#endif\r
-\r
-#ifndef traceTASK_SWITCHED_OUT\r
- /* Called before a task has been selected to run. pxCurrentTCB holds a pointer\r
- to the task control block of the task being switched out. */\r
- #define traceTASK_SWITCHED_OUT()\r
-#endif\r
-\r
-#ifndef traceTASK_PRIORITY_INHERIT\r
- /* Called when a task attempts to take a mutex that is already held by a\r
- lower priority task. pxTCBOfMutexHolder is a pointer to the TCB of the task\r
- that holds the mutex. uxInheritedPriority is the priority the mutex holder\r
- will inherit (the priority of the task that is attempting to obtain the\r
- muted. */\r
- #define traceTASK_PRIORITY_INHERIT( pxTCBOfMutexHolder, uxInheritedPriority )\r
-#endif\r
-\r
-#ifndef traceTASK_PRIORITY_DISINHERIT\r
- /* Called when a task releases a mutex, the holding of which had resulted in\r
- the task inheriting the priority of a higher priority task. \r
- pxTCBOfMutexHolder is a pointer to the TCB of the task that is releasing the\r
- mutex. uxOriginalPriority is the task's configured (base) priority. */\r
- #define traceTASK_PRIORITY_DISINHERIT( pxTCBOfMutexHolder, uxOriginalPriority )\r
-#endif\r
-\r
-#ifndef traceBLOCKING_ON_QUEUE_RECEIVE\r
- /* Task is about to block because it cannot read from a\r
- queue/mutex/semaphore. pxQueue is a pointer to the queue/mutex/semaphore\r
- upon which the read was attempted. pxCurrentTCB points to the TCB of the\r
- task that attempted the read. */\r
- #define traceBLOCKING_ON_QUEUE_RECEIVE( pxQueue )\r
-#endif\r
-\r
-#ifndef traceBLOCKING_ON_QUEUE_SEND\r
- /* Task is about to block because it cannot write to a\r
- queue/mutex/semaphore. pxQueue is a pointer to the queue/mutex/semaphore\r
- upon which the write was attempted. pxCurrentTCB points to the TCB of the\r
- task that attempted the write. */\r
- #define traceBLOCKING_ON_QUEUE_SEND( pxQueue )\r
-#endif\r
-\r
-#ifndef configCHECK_FOR_STACK_OVERFLOW\r
- #define configCHECK_FOR_STACK_OVERFLOW 0\r
-#endif\r
-\r
-/* The following event macros are embedded in the kernel API calls. */\r
-\r
-#ifndef traceMOVED_TASK_TO_READY_STATE\r
- #define traceMOVED_TASK_TO_READY_STATE( pxTCB )\r
-#endif\r
-\r
-#ifndef traceQUEUE_CREATE \r
- #define traceQUEUE_CREATE( pxNewQueue )\r
-#endif\r
-\r
-#ifndef traceQUEUE_CREATE_FAILED\r
- #define traceQUEUE_CREATE_FAILED( ucQueueType )\r
-#endif\r
-\r
-#ifndef traceCREATE_MUTEX\r
- #define traceCREATE_MUTEX( pxNewQueue )\r
-#endif\r
-\r
-#ifndef traceCREATE_MUTEX_FAILED\r
- #define traceCREATE_MUTEX_FAILED()\r
-#endif\r
-\r
-#ifndef traceGIVE_MUTEX_RECURSIVE\r
- #define traceGIVE_MUTEX_RECURSIVE( pxMutex )\r
-#endif\r
-\r
-#ifndef traceGIVE_MUTEX_RECURSIVE_FAILED\r
- #define traceGIVE_MUTEX_RECURSIVE_FAILED( pxMutex )\r
-#endif\r
-\r
-#ifndef traceTAKE_MUTEX_RECURSIVE\r
- #define traceTAKE_MUTEX_RECURSIVE( pxMutex )\r
-#endif\r
-\r
-#ifndef traceTAKE_MUTEX_RECURSIVE_FAILED\r
- #define traceTAKE_MUTEX_RECURSIVE_FAILED( pxMutex )\r
-#endif\r
-\r
-#ifndef traceCREATE_COUNTING_SEMAPHORE\r
- #define traceCREATE_COUNTING_SEMAPHORE()\r
-#endif\r
-\r
-#ifndef traceCREATE_COUNTING_SEMAPHORE_FAILED\r
- #define traceCREATE_COUNTING_SEMAPHORE_FAILED()\r
-#endif\r
-\r
-#ifndef traceQUEUE_SEND\r
- #define traceQUEUE_SEND( pxQueue )\r
-#endif\r
-\r
-#ifndef traceQUEUE_SEND_FAILED\r
- #define traceQUEUE_SEND_FAILED( pxQueue )\r
-#endif\r
-\r
-#ifndef traceQUEUE_RECEIVE\r
- #define traceQUEUE_RECEIVE( pxQueue )\r
-#endif\r
-\r
-#ifndef traceQUEUE_PEEK\r
- #define traceQUEUE_PEEK( pxQueue )\r
-#endif\r
-\r
-#ifndef traceQUEUE_RECEIVE_FAILED\r
- #define traceQUEUE_RECEIVE_FAILED( pxQueue )\r
-#endif\r
-\r
-#ifndef traceQUEUE_SEND_FROM_ISR\r
- #define traceQUEUE_SEND_FROM_ISR( pxQueue )\r
-#endif\r
-\r
-#ifndef traceQUEUE_SEND_FROM_ISR_FAILED\r
- #define traceQUEUE_SEND_FROM_ISR_FAILED( pxQueue )\r
-#endif\r
-\r
-#ifndef traceQUEUE_RECEIVE_FROM_ISR\r
- #define traceQUEUE_RECEIVE_FROM_ISR( pxQueue )\r
-#endif\r
-\r
-#ifndef traceQUEUE_RECEIVE_FROM_ISR_FAILED\r
- #define traceQUEUE_RECEIVE_FROM_ISR_FAILED( pxQueue )\r
-#endif\r
-\r
-#ifndef traceQUEUE_DELETE\r
- #define traceQUEUE_DELETE( pxQueue )\r
-#endif\r
-\r
-#ifndef traceTASK_CREATE\r
- #define traceTASK_CREATE( pxNewTCB )\r
-#endif\r
-\r
-#ifndef traceTASK_CREATE_FAILED\r
- #define traceTASK_CREATE_FAILED()\r
-#endif\r
-\r
-#ifndef traceTASK_DELETE\r
- #define traceTASK_DELETE( pxTaskToDelete )\r
-#endif\r
-\r
-#ifndef traceTASK_DELAY_UNTIL\r
- #define traceTASK_DELAY_UNTIL()\r
-#endif\r
-\r
-#ifndef traceTASK_DELAY\r
- #define traceTASK_DELAY()\r
-#endif\r
-\r
-#ifndef traceTASK_PRIORITY_SET\r
- #define traceTASK_PRIORITY_SET( pxTask, uxNewPriority )\r
-#endif\r
-\r
-#ifndef traceTASK_SUSPEND\r
- #define traceTASK_SUSPEND( pxTaskToSuspend )\r
-#endif\r
-\r
-#ifndef traceTASK_RESUME\r
- #define traceTASK_RESUME( pxTaskToResume )\r
-#endif\r
-\r
-#ifndef traceTASK_RESUME_FROM_ISR\r
- #define traceTASK_RESUME_FROM_ISR( pxTaskToResume )\r
-#endif\r
-\r
-#ifndef traceTASK_INCREMENT_TICK\r
- #define traceTASK_INCREMENT_TICK( xTickCount )\r
-#endif\r
-\r
-#ifndef traceTIMER_CREATE\r
- #define traceTIMER_CREATE( pxNewTimer )\r
-#endif\r
-\r
-#ifndef traceTIMER_CREATE_FAILED\r
- #define traceTIMER_CREATE_FAILED()\r
-#endif\r
-\r
-#ifndef traceTIMER_COMMAND_SEND\r
- #define traceTIMER_COMMAND_SEND( xTimer, xMessageID, xMessageValueValue, xReturn )\r
-#endif\r
-\r
-#ifndef traceTIMER_EXPIRED\r
- #define traceTIMER_EXPIRED( pxTimer )\r
-#endif\r
-\r
-#ifndef traceTIMER_COMMAND_RECEIVED\r
- #define traceTIMER_COMMAND_RECEIVED( pxTimer, xMessageID, xMessageValue )\r
-#endif\r
-\r
-#ifndef configGENERATE_RUN_TIME_STATS\r
- #define configGENERATE_RUN_TIME_STATS 0\r
-#endif\r
-\r
-#if ( configGENERATE_RUN_TIME_STATS == 1 )\r
-\r
- #ifndef portCONFIGURE_TIMER_FOR_RUN_TIME_STATS\r
- #error If configGENERATE_RUN_TIME_STATS is defined then portCONFIGURE_TIMER_FOR_RUN_TIME_STATS must also be defined. portCONFIGURE_TIMER_FOR_RUN_TIME_STATS should call a port layer function to setup a peripheral timer/counter that can then be used as the run time counter time base.\r
- #endif /* portCONFIGURE_TIMER_FOR_RUN_TIME_STATS */\r
-\r
- #ifndef portGET_RUN_TIME_COUNTER_VALUE\r
- #ifndef portALT_GET_RUN_TIME_COUNTER_VALUE\r
- #error If configGENERATE_RUN_TIME_STATS is defined then either portGET_RUN_TIME_COUNTER_VALUE or portALT_GET_RUN_TIME_COUNTER_VALUE must also be defined. See the examples provided and the FreeRTOS web site for more information.\r
- #endif /* portALT_GET_RUN_TIME_COUNTER_VALUE */\r
- #endif /* portGET_RUN_TIME_COUNTER_VALUE */\r
-\r
-#endif /* configGENERATE_RUN_TIME_STATS */\r
-\r
-#ifndef portCONFIGURE_TIMER_FOR_RUN_TIME_STATS\r
- #define portCONFIGURE_TIMER_FOR_RUN_TIME_STATS()\r
-#endif\r
-\r
-#ifndef configUSE_MALLOC_FAILED_HOOK\r
- #define configUSE_MALLOC_FAILED_HOOK 0\r
-#endif\r
-\r
-#ifndef portPRIVILEGE_BIT\r
- #define portPRIVILEGE_BIT ( ( unsigned portBASE_TYPE ) 0x00 )\r
-#endif\r
-\r
-#ifndef portYIELD_WITHIN_API\r
- #define portYIELD_WITHIN_API portYIELD\r
-#endif\r
-\r
-#ifndef pvPortMallocAligned\r
- #define pvPortMallocAligned( x, puxStackBuffer ) ( ( ( puxStackBuffer ) == NULL ) ? ( pvPortMalloc( ( x ) ) ) : ( puxStackBuffer ) )\r
-#endif\r
-\r
-#ifndef vPortFreeAligned\r
- #define vPortFreeAligned( pvBlockToFree ) vPortFree( pvBlockToFree )\r
-#endif\r
-\r
-#ifndef portSUPPRESS_TICKS_AND_SLEEP\r
- #define portSUPPRESS_TICKS_AND_SLEEP( xExpectedIdleTime )\r
-#endif\r
-\r
-#ifndef portPRE_SLEEP_PROCESSING\r
- #define portPRE_SLEEP_PROCESSING()\r
-#endif\r
-\r
-#ifndef portPOST_SLEEP_PROCESSING\r
- #define portPOST_SLEEP_PROCESSING()\r
-#endif\r
-\r
-#endif /* INC_FREERTOS_H */\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
-\r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-#ifndef STACK_MACROS_H\r
-#define STACK_MACROS_H\r
-\r
-/*\r
- * Call the stack overflow hook function if the stack of the task being swapped\r
- * out is currently overflowed, or looks like it might have overflowed in the\r
- * past.\r
- *\r
- * Setting configCHECK_FOR_STACK_OVERFLOW to 1 will cause the macro to check\r
- * the current stack state only - comparing the current top of stack value to\r
- * the stack limit. Setting configCHECK_FOR_STACK_OVERFLOW to greater than 1\r
- * will also cause the last few stack bytes to be checked to ensure the value\r
- * to which the bytes were set when the task was created have not been\r
- * overwritten. Note this second test does not guarantee that an overflowed\r
- * stack will always be recognised.\r
- */\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-#if( configCHECK_FOR_STACK_OVERFLOW == 0 )\r
-\r
- /* FreeRTOSConfig.h is not set to check for stack overflows. */\r
- #define taskFIRST_CHECK_FOR_STACK_OVERFLOW()\r
- #define taskSECOND_CHECK_FOR_STACK_OVERFLOW()\r
-\r
-#endif /* configCHECK_FOR_STACK_OVERFLOW == 0 */\r
-/*-----------------------------------------------------------*/\r
-\r
-#if( configCHECK_FOR_STACK_OVERFLOW == 1 )\r
-\r
- /* FreeRTOSConfig.h is only set to use the first method of\r
- overflow checking. */\r
- #define taskSECOND_CHECK_FOR_STACK_OVERFLOW()\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if( ( configCHECK_FOR_STACK_OVERFLOW > 0 ) && ( portSTACK_GROWTH < 0 ) )\r
-\r
- /* Only the current stack state is to be checked. */\r
- #define taskFIRST_CHECK_FOR_STACK_OVERFLOW() \\r
- { \\r
- /* Is the currently saved stack pointer within the stack limit? */ \\r
- if( pxCurrentTCB->pxTopOfStack <= pxCurrentTCB->pxStack ) \\r
- { \\r
- vApplicationStackOverflowHook( ( xTaskHandle ) pxCurrentTCB, pxCurrentTCB->pcTaskName ); \\r
- } \\r
- }\r
-\r
-#endif /* configCHECK_FOR_STACK_OVERFLOW > 0 */\r
-/*-----------------------------------------------------------*/\r
-\r
-#if( ( configCHECK_FOR_STACK_OVERFLOW > 0 ) && ( portSTACK_GROWTH > 0 ) )\r
-\r
- /* Only the current stack state is to be checked. */\r
- #define taskFIRST_CHECK_FOR_STACK_OVERFLOW() \\r
- { \\r
- \\r
- /* Is the currently saved stack pointer within the stack limit? */ \\r
- if( pxCurrentTCB->pxTopOfStack >= pxCurrentTCB->pxEndOfStack ) \\r
- { \\r
- vApplicationStackOverflowHook( ( xTaskHandle ) pxCurrentTCB, pxCurrentTCB->pcTaskName ); \\r
- } \\r
- }\r
-\r
-#endif /* configCHECK_FOR_STACK_OVERFLOW == 1 */\r
-/*-----------------------------------------------------------*/\r
-\r
-#if( ( configCHECK_FOR_STACK_OVERFLOW > 1 ) && ( portSTACK_GROWTH < 0 ) )\r
-\r
- #define taskSECOND_CHECK_FOR_STACK_OVERFLOW() \\r
- { \\r
- static const unsigned char ucExpectedStackBytes[] = { tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \\r
- tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \\r
- tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \\r
- tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \\r
- tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE }; \\r
- \\r
- \\r
- /* Has the extremity of the task stack ever been written over? */ \\r
- if( memcmp( ( void * ) pxCurrentTCB->pxStack, ( void * ) ucExpectedStackBytes, sizeof( ucExpectedStackBytes ) ) != 0 ) \\r
- { \\r
- vApplicationStackOverflowHook( ( xTaskHandle ) pxCurrentTCB, pxCurrentTCB->pcTaskName ); \\r
- } \\r
- }\r
-\r
-#endif /* #if( configCHECK_FOR_STACK_OVERFLOW > 1 ) */\r
-/*-----------------------------------------------------------*/\r
-\r
-#if( ( configCHECK_FOR_STACK_OVERFLOW > 1 ) && ( portSTACK_GROWTH > 0 ) )\r
-\r
- #define taskSECOND_CHECK_FOR_STACK_OVERFLOW() \\r
- { \\r
- char *pcEndOfStack = ( char * ) pxCurrentTCB->pxEndOfStack; \\r
- static const unsigned char ucExpectedStackBytes[] = { tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \\r
- tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \\r
- tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \\r
- tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \\r
- tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE }; \\r
- \\r
- \\r
- pcEndOfStack -= sizeof( ucExpectedStackBytes ); \\r
- \\r
- /* Has the extremity of the task stack ever been written over? */ \\r
- if( memcmp( ( void * ) pcEndOfStack, ( void * ) ucExpectedStackBytes, sizeof( ucExpectedStackBytes ) ) != 0 ) \\r
- { \\r
- vApplicationStackOverflowHook( ( xTaskHandle ) pxCurrentTCB, pxCurrentTCB->pcTaskName ); \\r
- } \\r
- }\r
-\r
-#endif /* #if( configCHECK_FOR_STACK_OVERFLOW > 1 ) */\r
-/*-----------------------------------------------------------*/\r
-\r
-#endif /* STACK_MACROS_H */\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
-\r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
-\r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- http://www.FreeRTOS.org - Documentation, training, latest information,\r
- license and contact details.\r
-\r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell\r
- the code with commercial support, indemnification, and middleware, under\r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under\r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-/*\r
- * A sample implementation of pvPortMalloc() and vPortFree() that combines \r
- * (coalescences) adjacent memory blocks as they are freed, and in so doing \r
- * limits memory fragmentation.\r
- *\r
- * See heap_1.c, heap_2.c and heap_3.c for alternative implementations, and the \r
- * memory management pages of http://www.FreeRTOS.org for more information.\r
- */\r
-#include <stdlib.h>\r
-\r
-/* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE prevents task.h from redefining\r
-all the API functions to use the MPU wrappers. That should only be done when\r
-task.h is included from an application file. */\r
-#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE\r
-\r
-#include "FreeRTOS.h"\r
-#include "task.h"\r
-\r
-#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE\r
-\r
-/* Block sizes must not get too small. */\r
-#define heapMINIMUM_BLOCK_SIZE ( ( size_t ) ( heapSTRUCT_SIZE * 2 ) )\r
-\r
-/* Allocate the memory for the heap. The struct is used to force byte\r
-alignment without using any non-portable code. */\r
-static union xRTOS_HEAP\r
-{\r
- #if portBYTE_ALIGNMENT == 8\r
- volatile portDOUBLE dDummy;\r
- #else\r
- volatile unsigned long ulDummy;\r
- #endif\r
- unsigned char ucHeap[ configTOTAL_HEAP_SIZE ];\r
-} xHeap;\r
-\r
-/* Define the linked list structure. This is used to link free blocks in order\r
-of their memory address. */\r
-typedef struct A_BLOCK_LINK\r
-{\r
- struct A_BLOCK_LINK *pxNextFreeBlock; /*<< The next free block in the list. */\r
- size_t xBlockSize; /*<< The size of the free block. */\r
-} xBlockLink;\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-/*\r
- * Inserts a block of memory that is being freed into the correct position in \r
- * the list of free memory blocks. The block being freed will be merged with\r
- * the block in front it and/or the block behind it if the memory blocks are\r
- * adjacent to each other.\r
- */\r
-static void prvInsertBlockIntoFreeList( xBlockLink *pxBlockToInsert );\r
-\r
-/*\r
- * Called automatically to setup the required heap structures the first time\r
- * pvPortMalloc() is called.\r
- */\r
-static void prvHeapInit( void );\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-/* The size of the structure placed at the beginning of each allocated memory\r
-block must by correctly byte aligned. */\r
-static const unsigned short heapSTRUCT_SIZE = ( sizeof( xBlockLink ) + portBYTE_ALIGNMENT - ( sizeof( xBlockLink ) % portBYTE_ALIGNMENT ) );\r
-\r
-/* Ensure the pxEnd pointer will end up on the correct byte alignment. */\r
-static const size_t xTotalHeapSize = ( ( size_t ) configTOTAL_HEAP_SIZE ) & ( ( size_t ) ~portBYTE_ALIGNMENT_MASK );\r
-\r
-/* Create a couple of list links to mark the start and end of the list. */\r
-static xBlockLink xStart, *pxEnd = NULL;\r
-\r
-/* Keeps track of the number of free bytes remaining, but says nothing about\r
-fragmentation. */\r
-static size_t xFreeBytesRemaining = ( ( size_t ) configTOTAL_HEAP_SIZE ) & ( ( size_t ) ~portBYTE_ALIGNMENT_MASK );\r
-\r
-/* STATIC FUNCTIONS ARE DEFINED AS MACROS TO MINIMIZE THE FUNCTION CALL DEPTH. */\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-void *pvPortMalloc( size_t xWantedSize )\r
-{\r
-xBlockLink *pxBlock, *pxPreviousBlock, *pxNewBlockLink;\r
-void *pvReturn = NULL;\r
-\r
- vTaskSuspendAll();\r
- {\r
- /* If this is the first call to malloc then the heap will require\r
- initialisation to setup the list of free blocks. */\r
- if( pxEnd == NULL )\r
- {\r
- prvHeapInit();\r
- }\r
-\r
- /* The wanted size is increased so it can contain a xBlockLink\r
- structure in addition to the requested amount of bytes. */\r
- if( xWantedSize > 0 )\r
- {\r
- xWantedSize += heapSTRUCT_SIZE;\r
-\r
- /* Ensure that blocks are always aligned to the required number of \r
- bytes. */\r
- if( xWantedSize & portBYTE_ALIGNMENT_MASK )\r
- {\r
- /* Byte alignment required. */\r
- xWantedSize += ( portBYTE_ALIGNMENT - ( xWantedSize & portBYTE_ALIGNMENT_MASK ) );\r
- }\r
- }\r
-\r
- if( ( xWantedSize > 0 ) && ( xWantedSize < xTotalHeapSize ) )\r
- {\r
- /* Traverse the list from the start (lowest address) block until one\r
- of adequate size is found. */\r
- pxPreviousBlock = &xStart;\r
- pxBlock = xStart.pxNextFreeBlock;\r
- while( ( pxBlock->xBlockSize < xWantedSize ) && ( pxBlock->pxNextFreeBlock != NULL ) )\r
- {\r
- pxPreviousBlock = pxBlock;\r
- pxBlock = pxBlock->pxNextFreeBlock;\r
- }\r
-\r
- /* If the end marker was reached then a block of adequate size was\r
- not found. */\r
- if( pxBlock != pxEnd )\r
- {\r
- /* Return the memory space - jumping over the xBlockLink structure\r
- at its start. */\r
- pvReturn = ( void * ) ( ( ( unsigned char * ) pxPreviousBlock->pxNextFreeBlock ) + heapSTRUCT_SIZE );\r
-\r
- /* This block is being returned for use so must be taken out of\r
- the list of free blocks. */\r
- pxPreviousBlock->pxNextFreeBlock = pxBlock->pxNextFreeBlock;\r
-\r
- /* If the block is larger than required it can be split into two. */\r
- if( ( pxBlock->xBlockSize - xWantedSize ) > heapMINIMUM_BLOCK_SIZE )\r
- {\r
- /* This block is to be split into two. Create a new block\r
- following the number of bytes requested. The void cast is\r
- used to prevent byte alignment warnings from the compiler. */\r
- pxNewBlockLink = ( void * ) ( ( ( unsigned char * ) pxBlock ) + xWantedSize );\r
-\r
- /* Calculate the sizes of two blocks split from the single\r
- block. */\r
- pxNewBlockLink->xBlockSize = pxBlock->xBlockSize - xWantedSize;\r
- pxBlock->xBlockSize = xWantedSize;\r
-\r
- /* Insert the new block into the list of free blocks. */\r
- prvInsertBlockIntoFreeList( ( pxNewBlockLink ) );\r
- }\r
-\r
- xFreeBytesRemaining -= pxBlock->xBlockSize;\r
- }\r
- }\r
- }\r
- xTaskResumeAll();\r
-\r
- #if( configUSE_MALLOC_FAILED_HOOK == 1 )\r
- {\r
- if( pvReturn == NULL )\r
- {\r
- extern void vApplicationMallocFailedHook( void );\r
- vApplicationMallocFailedHook();\r
- }\r
- }\r
- #endif\r
-\r
- return pvReturn;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-void vPortFree( void *pv )\r
-{\r
-unsigned char *puc = ( unsigned char * ) pv;\r
-xBlockLink *pxLink;\r
-\r
- if( pv != NULL )\r
- {\r
- /* The memory being freed will have an xBlockLink structure immediately\r
- before it. */\r
- puc -= heapSTRUCT_SIZE;\r
-\r
- /* This casting is to keep the compiler from issuing warnings. */\r
- pxLink = ( void * ) puc;\r
-\r
- vTaskSuspendAll();\r
- {\r
- /* Add this block to the list of free blocks. */\r
- xFreeBytesRemaining += pxLink->xBlockSize;\r
- prvInsertBlockIntoFreeList( ( ( xBlockLink * ) pxLink ) ); \r
- }\r
- xTaskResumeAll();\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-size_t xPortGetFreeHeapSize( void )\r
-{\r
- return xFreeBytesRemaining;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-void vPortInitialiseBlocks( void )\r
-{\r
- /* This just exists to keep the linker quiet. */\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvHeapInit( void )\r
-{\r
-xBlockLink *pxFirstFreeBlock;\r
-unsigned char *pucHeapEnd;\r
-\r
- /* Ensure the start of the heap is aligned. */\r
- configASSERT( ( ( ( unsigned long ) xHeap.ucHeap ) & ( ( unsigned long ) portBYTE_ALIGNMENT_MASK ) ) == 0UL );\r
-\r
- /* xStart is used to hold a pointer to the first item in the list of free\r
- blocks. The void cast is used to prevent compiler warnings. */\r
- xStart.pxNextFreeBlock = ( void * ) xHeap.ucHeap;\r
- xStart.xBlockSize = ( size_t ) 0;\r
-\r
- /* pxEnd is used to mark the end of the list of free blocks and is inserted\r
- at the end of the heap space. */\r
- pucHeapEnd = xHeap.ucHeap + xTotalHeapSize;\r
- pucHeapEnd -= heapSTRUCT_SIZE;\r
- pxEnd = ( void * ) pucHeapEnd;\r
- configASSERT( ( ( ( unsigned long ) pxEnd ) & ( ( unsigned long ) portBYTE_ALIGNMENT_MASK ) ) == 0UL );\r
- pxEnd->xBlockSize = 0;\r
- pxEnd->pxNextFreeBlock = NULL;\r
-\r
- /* To start with there is a single free block that is sized to take up the\r
- entire heap space, minus the space taken by pxEnd. */\r
- pxFirstFreeBlock = ( void * ) xHeap.ucHeap;\r
- pxFirstFreeBlock->xBlockSize = xTotalHeapSize - heapSTRUCT_SIZE;\r
- pxFirstFreeBlock->pxNextFreeBlock = pxEnd;\r
-\r
- /* The heap now contains pxEnd. */\r
- xFreeBytesRemaining -= heapSTRUCT_SIZE;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvInsertBlockIntoFreeList( xBlockLink *pxBlockToInsert )\r
-{\r
-xBlockLink *pxIterator;\r
-unsigned char *puc;\r
-\r
- /* Iterate through the list until a block is found that has a higher address\r
- than the block being inserted. */\r
- for( pxIterator = &xStart; pxIterator->pxNextFreeBlock < pxBlockToInsert; pxIterator = pxIterator->pxNextFreeBlock )\r
- {\r
- /* Nothing to do here, just iterate to the right position. */\r
- }\r
-\r
- /* Do the block being inserted, and the block it is being inserted after\r
- make a contiguous block of memory? */ \r
- puc = ( unsigned char * ) pxIterator;\r
- if( ( puc + pxIterator->xBlockSize ) == ( unsigned char * ) pxBlockToInsert )\r
- {\r
- pxIterator->xBlockSize += pxBlockToInsert->xBlockSize;\r
- pxBlockToInsert = pxIterator;\r
- }\r
-\r
- /* Do the block being inserted, and the block it is being inserted before\r
- make a contiguous block of memory? */\r
- puc = ( unsigned char * ) pxBlockToInsert;\r
- if( ( puc + pxBlockToInsert->xBlockSize ) == ( unsigned char * ) pxIterator->pxNextFreeBlock )\r
- {\r
- if( pxIterator->pxNextFreeBlock != pxEnd )\r
- {\r
- /* Form one big block from the two blocks. */\r
- pxBlockToInsert->xBlockSize += pxIterator->pxNextFreeBlock->xBlockSize;\r
- pxBlockToInsert->pxNextFreeBlock = pxIterator->pxNextFreeBlock->pxNextFreeBlock;\r
- }\r
- else\r
- {\r
- pxBlockToInsert->pxNextFreeBlock = pxEnd;\r
- }\r
- }\r
- else\r
- {\r
- pxBlockToInsert->pxNextFreeBlock = pxIterator->pxNextFreeBlock; \r
- }\r
-\r
- /* If the block being inserted plugged a gab, so was merged with the block\r
- before and the block after, then it's pxNextFreeBlock pointer will have\r
- already been set, and should not be set here as that would make it point\r
- to itself. */\r
- if( pxIterator != pxBlockToInsert )\r
- {\r
- pxIterator->pxNextFreeBlock = pxBlockToInsert;\r
- }\r
-}\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
-\r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
-\r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- http://www.FreeRTOS.org - Documentation, training, latest information,\r
- license and contact details.\r
-\r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell\r
- the code with commercial support, indemnification, and middleware, under\r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under\r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-\r
-#include <stdlib.h>\r
-#include "FreeRTOS.h"\r
-#include "list.h"\r
-\r
-/*-----------------------------------------------------------\r
- * PUBLIC LIST API documented in list.h\r
- *----------------------------------------------------------*/\r
-\r
-void vListInitialise( xList *pxList )\r
-{\r
- /* The list structure contains a list item which is used to mark the\r
- end of the list. To initialise the list the list end is inserted\r
- as the only list entry. */\r
- pxList->pxIndex = ( xListItem * ) &( pxList->xListEnd );\r
-\r
- /* The list end value is the highest possible value in the list to\r
- ensure it remains at the end of the list. */\r
- pxList->xListEnd.xItemValue = portMAX_DELAY;\r
-\r
- /* The list end next and previous pointers point to itself so we know\r
- when the list is empty. */\r
- pxList->xListEnd.pxNext = ( xListItem * ) &( pxList->xListEnd );\r
- pxList->xListEnd.pxPrevious = ( xListItem * ) &( pxList->xListEnd );\r
-\r
- pxList->uxNumberOfItems = ( unsigned portBASE_TYPE ) 0U;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-void vListInitialiseItem( xListItem *pxItem )\r
-{\r
- /* Make sure the list item is not recorded as being on a list. */\r
- pxItem->pvContainer = NULL;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-void vListInsertEnd( xList *pxList, xListItem *pxNewListItem )\r
-{\r
-volatile xListItem * pxIndex;\r
-\r
- /* Insert a new list item into pxList, but rather than sort the list,\r
- makes the new list item the last item to be removed by a call to\r
- pvListGetOwnerOfNextEntry. This means it has to be the item pointed to by\r
- the pxIndex member. */\r
- pxIndex = pxList->pxIndex;\r
-\r
- pxNewListItem->pxNext = pxIndex->pxNext;\r
- pxNewListItem->pxPrevious = pxList->pxIndex;\r
- pxIndex->pxNext->pxPrevious = ( volatile xListItem * ) pxNewListItem;\r
- pxIndex->pxNext = ( volatile xListItem * ) pxNewListItem;\r
- pxList->pxIndex = ( volatile xListItem * ) pxNewListItem;\r
-\r
- /* Remember which list the item is in. */\r
- pxNewListItem->pvContainer = ( void * ) pxList;\r
-\r
- ( pxList->uxNumberOfItems )++;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-void vListInsert( xList *pxList, xListItem *pxNewListItem )\r
-{\r
-volatile xListItem *pxIterator;\r
-portTickType xValueOfInsertion;\r
-\r
- /* Insert the new list item into the list, sorted in ulListItem order. */\r
- xValueOfInsertion = pxNewListItem->xItemValue;\r
-\r
- /* If the list already contains a list item with the same item value then\r
- the new list item should be placed after it. This ensures that TCB's which\r
- are stored in ready lists (all of which have the same ulListItem value)\r
- get an equal share of the CPU. However, if the xItemValue is the same as\r
- the back marker the iteration loop below will not end. This means we need\r
- to guard against this by checking the value first and modifying the\r
- algorithm slightly if necessary. */\r
- if( xValueOfInsertion == portMAX_DELAY )\r
- {\r
- pxIterator = pxList->xListEnd.pxPrevious;\r
- }\r
- else\r
- {\r
- /* *** NOTE ***********************************************************\r
- If you find your application is crashing here then likely causes are:\r
- 1) Stack overflow -\r
- see http://www.freertos.org/Stacks-and-stack-overflow-checking.html\r
- 2) Incorrect interrupt priority assignment, especially on Cortex-M3\r
- parts where numerically high priority values denote low actual\r
- interrupt priories, which can seem counter intuitive. See\r
- configMAX_SYSCALL_INTERRUPT_PRIORITY on http://www.freertos.org/a00110.html\r
- 3) Calling an API function from within a critical section or when\r
- the scheduler is suspended.\r
- 4) Using a queue or semaphore before it has been initialised or\r
- before the scheduler has been started (are interrupts firing\r
- before vTaskStartScheduler() has been called?).\r
- See http://www.freertos.org/FAQHelp.html for more tips.\r
- **********************************************************************/\r
-\r
- for( pxIterator = ( xListItem * ) &( pxList->xListEnd ); pxIterator->pxNext->xItemValue <= xValueOfInsertion; pxIterator = pxIterator->pxNext )\r
- {\r
- /* There is nothing to do here, we are just iterating to the\r
- wanted insertion position. */\r
- }\r
- }\r
-\r
- pxNewListItem->pxNext = pxIterator->pxNext;\r
- pxNewListItem->pxNext->pxPrevious = ( volatile xListItem * ) pxNewListItem;\r
- pxNewListItem->pxPrevious = pxIterator;\r
- pxIterator->pxNext = ( volatile xListItem * ) pxNewListItem;\r
-\r
- /* Remember which list the item is in. This allows fast removal of the\r
- item later. */\r
- pxNewListItem->pvContainer = ( void * ) pxList;\r
-\r
- ( pxList->uxNumberOfItems )++;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-unsigned portBASE_TYPE uxListRemove( xListItem *pxItemToRemove )\r
-{\r
-xList * pxList;\r
-\r
- pxItemToRemove->pxNext->pxPrevious = pxItemToRemove->pxPrevious;\r
- pxItemToRemove->pxPrevious->pxNext = pxItemToRemove->pxNext;\r
-\r
- /* The list item knows which list it is in. Obtain the list from the list\r
- item. */\r
- pxList = ( xList * ) pxItemToRemove->pvContainer;\r
-\r
- /* Make sure the index is left pointing to a valid item. */\r
- if( pxList->pxIndex == pxItemToRemove )\r
- {\r
- pxList->pxIndex = pxItemToRemove->pxPrevious;\r
- }\r
-\r
- pxItemToRemove->pvContainer = NULL;\r
- ( pxList->uxNumberOfItems )--;\r
-\r
- return pxList->uxNumberOfItems;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
-\r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-/*\r
- * This is the list implementation used by the scheduler. While it is tailored\r
- * heavily for the schedulers needs, it is also available for use by\r
- * application code.\r
- *\r
- * xLists can only store pointers to xListItems. Each xListItem contains a\r
- * numeric value (xItemValue). Most of the time the lists are sorted in\r
- * descending item value order.\r
- *\r
- * Lists are created already containing one list item. The value of this\r
- * item is the maximum possible that can be stored, it is therefore always at\r
- * the end of the list and acts as a marker. The list member pxHead always\r
- * points to this marker - even though it is at the tail of the list. This\r
- * is because the tail contains a wrap back pointer to the true head of\r
- * the list.\r
- *\r
- * In addition to it's value, each list item contains a pointer to the next\r
- * item in the list (pxNext), a pointer to the list it is in (pxContainer)\r
- * and a pointer to back to the object that contains it. These later two\r
- * pointers are included for efficiency of list manipulation. There is\r
- * effectively a two way link between the object containing the list item and\r
- * the list item itself.\r
- *\r
- *\r
- * \page ListIntroduction List Implementation\r
- * \ingroup FreeRTOSIntro\r
- */\r
-\r
-\r
-#ifndef LIST_H\r
-#define LIST_H\r
-\r
-#ifdef __cplusplus\r
-extern "C" {\r
-#endif\r
-/*\r
- * Definition of the only type of object that a list can contain.\r
- */\r
-struct xLIST_ITEM\r
-{\r
- portTickType xItemValue; /*< The value being listed. In most cases this is used to sort the list in descending order. */\r
- volatile struct xLIST_ITEM * pxNext; /*< Pointer to the next xListItem in the list. */\r
- volatile struct xLIST_ITEM * pxPrevious;/*< Pointer to the previous xListItem in the list. */\r
- void * pvOwner; /*< Pointer to the object (normally a TCB) that contains the list item. There is therefore a two way link between the object containing the list item and the list item itself. */\r
- void * pvContainer; /*< Pointer to the list in which this list item is placed (if any). */\r
-};\r
-typedef struct xLIST_ITEM xListItem; /* For some reason lint wants this as two separate definitions. */\r
-\r
-struct xMINI_LIST_ITEM\r
-{\r
- portTickType xItemValue;\r
- volatile struct xLIST_ITEM *pxNext;\r
- volatile struct xLIST_ITEM *pxPrevious;\r
-};\r
-typedef struct xMINI_LIST_ITEM xMiniListItem;\r
-\r
-/*\r
- * Definition of the type of queue used by the scheduler.\r
- */\r
-typedef struct xLIST\r
-{\r
- volatile unsigned portBASE_TYPE uxNumberOfItems;\r
- volatile xListItem * pxIndex; /*< Used to walk through the list. Points to the last item returned by a call to pvListGetOwnerOfNextEntry (). */\r
- volatile xMiniListItem xListEnd; /*< List item that contains the maximum possible item value meaning it is always at the end of the list and is therefore used as a marker. */\r
-} xList;\r
-\r
-/*\r
- * Access macro to set the owner of a list item. The owner of a list item\r
- * is the object (usually a TCB) that contains the list item.\r
- *\r
- * \page listSET_LIST_ITEM_OWNER listSET_LIST_ITEM_OWNER\r
- * \ingroup LinkedList\r
- */\r
-#define listSET_LIST_ITEM_OWNER( pxListItem, pxOwner ) ( pxListItem )->pvOwner = ( void * ) ( pxOwner )\r
-\r
-/*\r
- * Access macro to get the owner of a list item. The owner of a list item\r
- * is the object (usually a TCB) that contains the list item.\r
- *\r
- * \page listSET_LIST_ITEM_OWNER listSET_LIST_ITEM_OWNER\r
- * \ingroup LinkedList\r
- */\r
-#define listGET_LIST_ITEM_OWNER( pxListItem ) ( pxListItem )->pvOwner\r
-\r
-/*\r
- * Access macro to set the value of the list item. In most cases the value is\r
- * used to sort the list in descending order.\r
- *\r
- * \page listSET_LIST_ITEM_VALUE listSET_LIST_ITEM_VALUE\r
- * \ingroup LinkedList\r
- */\r
-#define listSET_LIST_ITEM_VALUE( pxListItem, xValue ) ( pxListItem )->xItemValue = ( xValue )\r
-\r
-/*\r
- * Access macro to retrieve the value of the list item. The value can\r
- * represent anything - for example a the priority of a task, or the time at\r
- * which a task should be unblocked.\r
- *\r
- * \page listGET_LIST_ITEM_VALUE listGET_LIST_ITEM_VALUE\r
- * \ingroup LinkedList\r
- */\r
-#define listGET_LIST_ITEM_VALUE( pxListItem ) ( ( pxListItem )->xItemValue )\r
-\r
-/*\r
- * Access macro the retrieve the value of the list item at the head of a given\r
- * list.\r
- *\r
- * \page listGET_LIST_ITEM_VALUE listGET_LIST_ITEM_VALUE\r
- * \ingroup LinkedList\r
- */\r
-#define listGET_ITEM_VALUE_OF_HEAD_ENTRY( pxList ) ( (&( ( pxList )->xListEnd ))->pxNext->xItemValue )\r
-\r
-/*\r
- * Access macro to determine if a list contains any items. The macro will\r
- * only have the value true if the list is empty.\r
- *\r
- * \page listLIST_IS_EMPTY listLIST_IS_EMPTY\r
- * \ingroup LinkedList\r
- */\r
-#define listLIST_IS_EMPTY( pxList ) ( ( pxList )->uxNumberOfItems == ( unsigned portBASE_TYPE ) 0 )\r
-\r
-/*\r
- * Access macro to return the number of items in the list.\r
- */\r
-#define listCURRENT_LIST_LENGTH( pxList ) ( ( pxList )->uxNumberOfItems )\r
-\r
-/*\r
- * Access function to obtain the owner of the next entry in a list.\r
- *\r
- * The list member pxIndex is used to walk through a list. Calling\r
- * listGET_OWNER_OF_NEXT_ENTRY increments pxIndex to the next item in the list\r
- * and returns that entries pxOwner parameter. Using multiple calls to this\r
- * function it is therefore possible to move through every item contained in\r
- * a list.\r
- *\r
- * The pxOwner parameter of a list item is a pointer to the object that owns\r
- * the list item. In the scheduler this is normally a task control block.\r
- * The pxOwner parameter effectively creates a two way link between the list\r
- * item and its owner.\r
- *\r
- * @param pxList The list from which the next item owner is to be returned.\r
- *\r
- * \page listGET_OWNER_OF_NEXT_ENTRY listGET_OWNER_OF_NEXT_ENTRY\r
- * \ingroup LinkedList\r
- */\r
-#define listGET_OWNER_OF_NEXT_ENTRY( pxTCB, pxList ) \\r
-{ \\r
-xList * const pxConstList = ( pxList ); \\r
- /* Increment the index to the next item and return the item, ensuring */ \\r
- /* we don't return the marker used at the end of the list. */ \\r
- ( pxConstList )->pxIndex = ( pxConstList )->pxIndex->pxNext; \\r
- if( ( pxConstList )->pxIndex == ( xListItem * ) &( ( pxConstList )->xListEnd ) ) \\r
- { \\r
- ( pxConstList )->pxIndex = ( pxConstList )->pxIndex->pxNext; \\r
- } \\r
- ( pxTCB ) = ( pxConstList )->pxIndex->pvOwner; \\r
-}\r
-\r
-\r
-/*\r
- * Access function to obtain the owner of the first entry in a list. Lists\r
- * are normally sorted in ascending item value order.\r
- *\r
- * This function returns the pxOwner member of the first item in the list.\r
- * The pxOwner parameter of a list item is a pointer to the object that owns\r
- * the list item. In the scheduler this is normally a task control block.\r
- * The pxOwner parameter effectively creates a two way link between the list\r
- * item and its owner.\r
- *\r
- * @param pxList The list from which the owner of the head item is to be\r
- * returned.\r
- *\r
- * \page listGET_OWNER_OF_HEAD_ENTRY listGET_OWNER_OF_HEAD_ENTRY\r
- * \ingroup LinkedList\r
- */\r
-#define listGET_OWNER_OF_HEAD_ENTRY( pxList ) ( (&( ( pxList )->xListEnd ))->pxNext->pvOwner )\r
-\r
-/*\r
- * Check to see if a list item is within a list. The list item maintains a\r
- * "container" pointer that points to the list it is in. All this macro does\r
- * is check to see if the container and the list match.\r
- *\r
- * @param pxList The list we want to know if the list item is within.\r
- * @param pxListItem The list item we want to know if is in the list.\r
- * @return pdTRUE is the list item is in the list, otherwise pdFALSE.\r
- * pointer against\r
- */\r
-#define listIS_CONTAINED_WITHIN( pxList, pxListItem ) ( ( pxListItem )->pvContainer == ( void * ) ( pxList ) )\r
-\r
-/*\r
- * Return the list a list item is contained within (referenced from).\r
- *\r
- * @param pxListItem The list item being queried.\r
- * @return A pointer to the xList object that references the pxListItem\r
- */\r
-#define listLIST_ITEM_CONTAINER( pxListItem ) ( ( pxListItem )->pvContainer )\r
-\r
-/*\r
- * This provides a crude means of knowing if a list has been initialised, as\r
- * pxList->xListEnd.xItemValue is set to portMAX_DELAY by the vListInitialise()\r
- * function.\r
- */\r
-#define listLIST_IS_INITIALISED( pxList ) ( ( pxList )->xListEnd.xItemValue == portMAX_DELAY )\r
-\r
-/*\r
- * Must be called before a list is used! This initialises all the members\r
- * of the list structure and inserts the xListEnd item into the list as a\r
- * marker to the back of the list.\r
- *\r
- * @param pxList Pointer to the list being initialised.\r
- *\r
- * \page vListInitialise vListInitialise\r
- * \ingroup LinkedList\r
- */\r
-void vListInitialise( xList *pxList );\r
-\r
-/*\r
- * Must be called before a list item is used. This sets the list container to\r
- * null so the item does not think that it is already contained in a list.\r
- *\r
- * @param pxItem Pointer to the list item being initialised.\r
- *\r
- * \page vListInitialiseItem vListInitialiseItem\r
- * \ingroup LinkedList\r
- */\r
-void vListInitialiseItem( xListItem *pxItem );\r
-\r
-/*\r
- * Insert a list item into a list. The item will be inserted into the list in\r
- * a position determined by its item value (descending item value order).\r
- *\r
- * @param pxList The list into which the item is to be inserted.\r
- *\r
- * @param pxNewListItem The item to that is to be placed in the list.\r
- *\r
- * \page vListInsert vListInsert\r
- * \ingroup LinkedList\r
- */\r
-void vListInsert( xList *pxList, xListItem *pxNewListItem );\r
-\r
-/*\r
- * Insert a list item into a list. The item will be inserted in a position\r
- * such that it will be the last item within the list returned by multiple\r
- * calls to listGET_OWNER_OF_NEXT_ENTRY.\r
- *\r
- * The list member pvIndex is used to walk through a list. Calling\r
- * listGET_OWNER_OF_NEXT_ENTRY increments pvIndex to the next item in the list.\r
- * Placing an item in a list using vListInsertEnd effectively places the item\r
- * in the list position pointed to by pvIndex. This means that every other\r
- * item within the list will be returned by listGET_OWNER_OF_NEXT_ENTRY before\r
- * the pvIndex parameter again points to the item being inserted.\r
- *\r
- * @param pxList The list into which the item is to be inserted.\r
- *\r
- * @param pxNewListItem The list item to be inserted into the list.\r
- *\r
- * \page vListInsertEnd vListInsertEnd\r
- * \ingroup LinkedList\r
- */\r
-void vListInsertEnd( xList *pxList, xListItem *pxNewListItem );\r
-\r
-/*\r
- * Remove an item from a list. The list item has a pointer to the list that\r
- * it is in, so only the list item need be passed into the function.\r
- *\r
- * @param uxListRemove The item to be removed. The item will remove itself from\r
- * the list pointed to by it's pxContainer parameter.\r
- * \r
- * @return The number of items that remain in the list after the list item has\r
- * been removed.\r
- *\r
- * \page uxListRemove uxListRemove\r
- * \ingroup LinkedList\r
- */\r
-unsigned portBASE_TYPE uxListRemove( xListItem *pxItemToRemove );\r
-\r
-#ifdef __cplusplus\r
-}\r
-#endif\r
-\r
-#endif\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
-\r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-#ifndef MPU_WRAPPERS_H\r
-#define MPU_WRAPPERS_H\r
-\r
-/* This file redefines API functions to be called through a wrapper macro, but\r
-only for ports that are using the MPU. */\r
-#ifdef portUSING_MPU_WRAPPERS\r
-\r
- /* MPU_WRAPPERS_INCLUDED_FROM_API_FILE will be defined when this file is\r
- included from queue.c or task.c to prevent it from having an effect within\r
- those files. */\r
- #ifndef MPU_WRAPPERS_INCLUDED_FROM_API_FILE\r
-\r
- #define xTaskGenericCreate MPU_xTaskGenericCreate\r
- #define vTaskAllocateMPURegions MPU_vTaskAllocateMPURegions\r
- #define vTaskDelete MPU_vTaskDelete\r
- #define vTaskDelayUntil MPU_vTaskDelayUntil\r
- #define vTaskDelay MPU_vTaskDelay\r
- #define uxTaskPriorityGet MPU_uxTaskPriorityGet\r
- #define vTaskPrioritySet MPU_vTaskPrioritySet\r
- #define eTaskStateGet MPU_eTaskStateGet\r
- #define vTaskSuspend MPU_vTaskSuspend\r
- #define xTaskIsTaskSuspended MPU_xTaskIsTaskSuspended\r
- #define vTaskResume MPU_vTaskResume\r
- #define vTaskSuspendAll MPU_vTaskSuspendAll\r
- #define xTaskResumeAll MPU_xTaskResumeAll\r
- #define xTaskGetTickCount MPU_xTaskGetTickCount\r
- #define uxTaskGetNumberOfTasks MPU_uxTaskGetNumberOfTasks\r
- #define vTaskList MPU_vTaskList\r
- #define vTaskGetRunTimeStats MPU_vTaskGetRunTimeStats\r
- #define vTaskSetApplicationTaskTag MPU_vTaskSetApplicationTaskTag\r
- #define xTaskGetApplicationTaskTag MPU_xTaskGetApplicationTaskTag\r
- #define xTaskCallApplicationTaskHook MPU_xTaskCallApplicationTaskHook\r
- #define uxTaskGetStackHighWaterMark MPU_uxTaskGetStackHighWaterMark\r
- #define xTaskGetCurrentTaskHandle MPU_xTaskGetCurrentTaskHandle\r
- #define xTaskGetSchedulerState MPU_xTaskGetSchedulerState\r
-\r
- #define xQueueGenericCreate MPU_xQueueGenericCreate\r
- #define xQueueCreateMutex MPU_xQueueCreateMutex\r
- #define xQueueGiveMutexRecursive MPU_xQueueGiveMutexRecursive\r
- #define xQueueTakeMutexRecursive MPU_xQueueTakeMutexRecursive\r
- #define xQueueCreateCountingSemaphore MPU_xQueueCreateCountingSemaphore\r
- #define xQueueGenericSend MPU_xQueueGenericSend\r
- #define xQueueAltGenericSend MPU_xQueueAltGenericSend\r
- #define xQueueAltGenericReceive MPU_xQueueAltGenericReceive\r
- #define xQueueGenericReceive MPU_xQueueGenericReceive\r
- #define uxQueueMessagesWaiting MPU_uxQueueMessagesWaiting\r
- #define vQueueDelete MPU_vQueueDelete\r
-\r
- #define pvPortMalloc MPU_pvPortMalloc\r
- #define vPortFree MPU_vPortFree\r
- #define xPortGetFreeHeapSize MPU_xPortGetFreeHeapSize\r
- #define vPortInitialiseBlocks MPU_vPortInitialiseBlocks\r
-\r
- #if configQUEUE_REGISTRY_SIZE > 0\r
- #define vQueueAddToRegistry MPU_vQueueAddToRegistry\r
- #define vQueueUnregisterQueue MPU_vQueueUnregisterQueue\r
- #endif\r
-\r
- /* Remove the privileged function macro. */\r
- #define PRIVILEGED_FUNCTION\r
-\r
- #else /* MPU_WRAPPERS_INCLUDED_FROM_API_FILE */\r
-\r
- /* Ensure API functions go in the privileged execution section. */\r
- #define PRIVILEGED_FUNCTION __attribute__((section("privileged_functions")))\r
- #define PRIVILEGED_DATA __attribute__((section("privileged_data")))\r
- //#define PRIVILEGED_DATA\r
-\r
- #endif /* MPU_WRAPPERS_INCLUDED_FROM_API_FILE */\r
-\r
-#else /* portUSING_MPU_WRAPPERS */\r
-\r
- #define PRIVILEGED_FUNCTION\r
- #define PRIVILEGED_DATA\r
- #define portUSING_MPU_WRAPPERS 0\r
-\r
-#endif /* portUSING_MPU_WRAPPERS */\r
-\r
-\r
-#endif /* MPU_WRAPPERS_H */\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
-\r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
-\r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- http://www.FreeRTOS.org - Documentation, training, latest information,\r
- license and contact details.\r
-\r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell\r
- the code with commercial support, indemnification, and middleware, under\r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under\r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-/* FreeRTOS includes. */\r
-#include "FreeRTOS.h"\r
-#include "task.h"\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-/* Count of the critical section nesting depth. */\r
-unsigned portLONG ulCriticalNesting = 9999;\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-/* Registers required to configure the RTI. */\r
-#define portRTI_GCTRL_REG ( * ( ( volatile unsigned long * ) 0xFFFFFC00 ) )\r
-#define portRTI_TBCTRL_REG ( * ( ( volatile unsigned long * ) 0xFFFFFC04 ) )\r
-#define portRTI_COMPCTRL_REG ( * ( ( volatile unsigned long * ) 0xFFFFFC0C ) )\r
-#define portRTI_CNT0_FRC0_REG ( * ( ( volatile unsigned long * ) 0xFFFFFC10 ) )\r
-#define portRTI_CNT0_UC0_REG ( * ( ( volatile unsigned long * ) 0xFFFFFC14 ) )\r
-#define portRTI_CNT0_CPUC0_REG ( * ( ( volatile unsigned long * ) 0xFFFFFC18 ) )\r
-#define portRTI_CNT0_COMP0_REG ( * ( ( volatile unsigned long * ) 0xFFFFFC50 ) )\r
-#define portRTI_CNT0_UDCP0_REG ( * ( ( volatile unsigned long * ) 0xFFFFFC54 ) )\r
-#define portRTI_SETINTENA_REG ( * ( ( volatile unsigned long * ) 0xFFFFFC80 ) )\r
-#define portRTI_CLEARINTENA_REG ( * ( ( volatile unsigned long * ) 0xFFFFFC84 ) )\r
-#define portRTI_INTFLAG_REG ( * ( ( volatile unsigned long * ) 0xFFFFFC88 ) )\r
-\r
-\r
-/* Constants required to set up the initial stack of each task. */\r
-#define portINITIAL_SPSR ( ( portSTACK_TYPE ) 0x1F )\r
-#define portINITIAL_FPSCR ( ( portSTACK_TYPE ) 0x00 )\r
-#define portINSTRUCTION_SIZE ( ( portSTACK_TYPE ) 0x04 )\r
-#define portTHUMB_MODE_BIT ( ( portSTACK_TYPE ) 0x20 )\r
-\r
-/* The number of words on the stack frame between the saved Top Of Stack and\r
-R0 (in which the parameters are passed. */\r
-#define portSPACE_BETWEEN_TOS_AND_PARAMETERS ( 12 )\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-/* vPortStartFirstSTask() is defined in portASM.asm */\r
-extern void vPortStartFirstTask( void );\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-/* Saved as part of the task context. Set to pdFALSE if the task does not\r
-require an FPU context. */\r
-unsigned long ulTaskHasFPUContext = 0;\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-\r
-/*\r
- * See header file for description.\r
- */\r
-portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE pxCode, void *pvParameters )\r
-{\r
-portSTACK_TYPE *pxOriginalTOS;\r
-\r
- pxOriginalTOS = pxTopOfStack;\r
-\r
- #if __TI_VFP_SUPPORT__\r
- {\r
- /* Ensure the stack is correctly aligned on exit. */\r
- pxTopOfStack--;\r
- }\r
- #endif\r
-\r
- /* Setup the initial stack of the task. The stack is set exactly as\r
- expected by the portRESTORE_CONTEXT() macro. */\r
-\r
- /* First on the stack is the return address - which is the start of the as\r
- the task has not executed yet. The offset is added to make the return\r
- address appear as it would within an IRQ ISR. */\r
- *pxTopOfStack = ( portSTACK_TYPE ) pxCode + portINSTRUCTION_SIZE;\r
- pxTopOfStack--;\r
-\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0x00000000; /* R14 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) pxOriginalTOS; /* Stack used when task starts goes in R13. */\r
- pxTopOfStack--;\r
-\r
- #ifdef portPRELOAD_TASK_REGISTERS\r
- {\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0x12121212; /* R12 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0x11111111; /* R11 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0x10101010; /* R10 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0x09090909; /* R9 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0x08080808; /* R8 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0x07070707; /* R7 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0x06060606; /* R6 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0x05050505; /* R5 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0x04040404; /* R4 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0x03030303; /* R3 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0x02020202; /* R2 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0x01010101; /* R1 */\r
- pxTopOfStack--;\r
- }\r
- #else\r
- {\r
- pxTopOfStack -= portSPACE_BETWEEN_TOS_AND_PARAMETERS;\r
- }\r
- #endif\r
-\r
- /* Function parameters are passed in R0. */\r
- *pxTopOfStack = ( portSTACK_TYPE ) pvParameters; /* R0 */\r
- pxTopOfStack--;\r
-\r
- /* Set the status register for system mode, with interrupts enabled. */\r
- *pxTopOfStack = ( portSTACK_TYPE ) ( ( _get_CPSR() & ~0xFF ) | portINITIAL_SPSR );\r
-\r
- if( ( ( unsigned long ) pxCode & 0x01UL ) != 0x00 )\r
- {\r
- /* The task will start in thumb mode. */\r
- *pxTopOfStack |= portTHUMB_MODE_BIT;\r
- }\r
-\r
- #ifdef __TI_VFP_SUPPORT__\r
- {\r
- pxTopOfStack--;\r
-\r
- /* The last thing on the stack is the tasks ulUsingFPU value, which by\r
- default is set to indicate that the stack frame does not include FPU\r
- registers. */\r
- *pxTopOfStack = pdFALSE;\r
- }\r
- #endif\r
-\r
- return pxTopOfStack;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvSetupTimerInterrupt(void)\r
-{\r
- /* Disable timer 0. */\r
- portRTI_GCTRL_REG &= 0xFFFFFFFEUL;\r
-\r
- /* Use the internal counter. */\r
- portRTI_TBCTRL_REG = 0x00000000U;\r
-\r
- /* COMPSEL0 will use the RTIFRC0 counter. */\r
- portRTI_COMPCTRL_REG = 0x00000000U;\r
-\r
- /* Initialise the counter and the prescale counter registers. */\r
- portRTI_CNT0_UC0_REG = 0x00000000U;\r
- portRTI_CNT0_FRC0_REG = 0x00000000U;\r
-\r
- /* Set Prescalar for RTI clock. */\r
- portRTI_CNT0_CPUC0_REG = 0x00000001U;\r
- portRTI_CNT0_COMP0_REG = ( configCPU_CLOCK_HZ / 2 ) / configTICK_RATE_HZ;\r
- portRTI_CNT0_UDCP0_REG = ( configCPU_CLOCK_HZ / 2 ) / configTICK_RATE_HZ;\r
-\r
- /* Clear interrupts. */\r
- portRTI_INTFLAG_REG = 0x0007000FU;\r
- portRTI_CLEARINTENA_REG = 0x00070F0FU;\r
-\r
- /* Enable the compare 0 interrupt. */\r
- portRTI_SETINTENA_REG = 0x00000001U;\r
- portRTI_GCTRL_REG |= 0x00000001U;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-/*\r
- * See header file for description.\r
- */\r
-portBASE_TYPE xPortStartScheduler(void)\r
-{\r
- /* Start the timer that generates the tick ISR. */\r
- prvSetupTimerInterrupt();\r
-\r
- /* Reset the critical section nesting count read to execute the first task. */\r
- ulCriticalNesting = 0;\r
-\r
- /* Start the first task. This is done from portASM.asm as ARM mode must be\r
- used. */\r
- vPortStartFirstTask();\r
-\r
- /* Should not get here! */\r
- return pdFAIL;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-/*\r
- * See header file for description.\r
- */\r
-void vPortEndScheduler(void)\r
-{\r
- /* It is unlikely that the port will require this function as there\r
- is nothing to return to. */\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-#if configUSE_PREEMPTION == 0\r
-\r
- /* The cooperative scheduler requires a normal IRQ service routine to\r
- * simply increment the system tick. */\r
- __interrupt void vPortNonPreemptiveTick( void )\r
- {\r
- /* clear clock interrupt flag */\r
- RTI->INTFLAG = 0x00000001;\r
-\r
- /* Increment the tick count - this may make a delaying task ready\r
- to run - but a context switch is not performed. */\r
- vTaskIncrementTick();\r
- }\r
-\r
- #else\r
-\r
- /*\r
- **************************************************************************\r
- * The preemptive scheduler ISR is written in assembler and can be found\r
- * in the portASM.asm file. This will only get used if portUSE_PREEMPTION\r
- * is set to 1 in portmacro.h\r
- **************************************************************************\r
- */\r
- void vPortPreemptiveTick( void );\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-\r
-/*\r
- * Disable interrupts, and keep a count of the nesting depth.\r
- */\r
-void vPortEnterCritical( void )\r
-{\r
- /* Disable interrupts as per portDISABLE_INTERRUPTS(); */\r
- portDISABLE_INTERRUPTS();\r
-\r
- /* Now interrupts are disabled ulCriticalNesting can be accessed\r
- directly. Increment ulCriticalNesting to keep a count of how many times\r
- portENTER_CRITICAL() has been called. */\r
- ulCriticalNesting++;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-/*\r
- * Decrement the critical nesting count, and if it has reached zero, re-enable\r
- * interrupts.\r
- */\r
-void vPortExitCritical( void )\r
-{\r
- if( ulCriticalNesting > 0 )\r
- {\r
- /* Decrement the nesting count as we are leaving a critical section. */\r
- ulCriticalNesting--;\r
-\r
- /* If the nesting level has reached zero then interrupts should be\r
- re-enabled. */\r
- if( ulCriticalNesting == 0 )\r
- {\r
- /* Enable interrupts as per portENABLE_INTERRUPTS(). */\r
- portENABLE_INTERRUPTS();\r
- }\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-#if __TI_VFP_SUPPORT__\r
-\r
- void vPortTaskUsesFPU( void )\r
- {\r
- extern void vPortInitialiseFPSCR( void );\r
-\r
- /* A task is registering the fact that it needs an FPU context. Set the\r
- FPU flag (saved as part of the task context. */\r
- ulTaskHasFPUContext = pdTRUE;\r
-\r
- /* Initialise the floating point status register. */\r
- vPortInitialiseFPSCR();\r
- }\r
-\r
-#endif /* __TI_VFP_SUPPORT__ */\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
+++ /dev/null
-;/*\r
-; FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
-; \r
-;\r
-; ***************************************************************************\r
-; * *\r
-; * FreeRTOS tutorial books are available in pdf and paperback. *\r
-; * Complete, revised, and edited pdf reference manuals are also *\r
-; * available. *\r
-; * *\r
-; * Purchasing FreeRTOS documentation will not only help you, by *\r
-; * ensuring you get running as quickly as possible and with an *\r
-; * in-depth knowledge of how to use FreeRTOS, it will also help *\r
-; * the FreeRTOS project to continue with its mission of providing *\r
-; * professional grade, cross platform, de facto standard solutions *\r
-; * for microcontrollers - completely free of charge! *\r
-; * *\r
-; * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
-; * *\r
-; * Thank you for using FreeRTOS, and thank you for your support! *\r
-; * *\r
-; ***************************************************************************\r
-;\r
-;\r
-; This file is part of the FreeRTOS distribution.\r
-;\r
-; FreeRTOS is free software; you can redistribute it and/or modify it under\r
-; the terms of the GNU General Public License (version 2) as published by the\r
-; Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
-; >>>NOTE<<< The modification to the GPL is included to allow you to\r
-; distribute a combined work that includes FreeRTOS without being obliged to\r
-; provide the source code for proprietary components outside of the FreeRTOS\r
-; kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
-; WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
-; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
-; more details. You should have received a copy of the GNU General Public\r
-; License and the FreeRTOS license exception along with FreeRTOS; if not it\r
-; can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
-; by writing to Richard Barry, contact details for whom are available on the\r
-; FreeRTOS WEB site.\r
-;\r
-; 1 tab == 4 spaces!\r
-;\r
-; http://www.FreeRTOS.org - Documentation, latest information, license and\r
-; contact details.\r
-;\r
-; http://www.SafeRTOS.com - A version that is certified for use in safety\r
-; critical systems.\r
-;\r
-; http://www.OpenRTOS.com - Commercial support, development, porting,\r
-; licensing and training services.\r
-;*/\r
-\r
- .text\r
- .arm\r
- .ref vTaskSwitchContext\r
- .ref vTaskIncrementTick\r
- .ref ulTaskHasFPUContext\r
- .ref pxCurrentTCB\r
-\r
-;/*-----------------------------------------------------------*/\r
-;\r
-; Save Task Context \r
-;\r
-portSAVE_CONTEXT .macro\r
- DSB\r
-\r
- ; Push R0 as we are going to use it\r
- STMDB SP!, {R0}\r
-\r
- ; Set R0 to point to the task stack pointer.\r
- STMDB SP,{SP}^\r
- SUB SP, SP, #4\r
- LDMIA SP!,{R0}\r
-\r
- ; Push the return address onto the stack.\r
- STMDB R0!, {LR}\r
-\r
- ; Now LR has been saved, it can be used instead of R0.\r
- MOV LR, R0\r
-\r
- ; Pop R0 so it can be saved onto the task stack.\r
- LDMIA SP!, {R0}\r
-\r
- ; Push all the system mode registers onto the task stack.\r
- STMDB LR,{R0-LR}^\r
- SUB LR, LR, #60\r
-\r
- ; Push the SPSR onto the task stack.\r
- MRS R0, SPSR\r
- STMDB LR!, {R0}\r
-\r
- .if (__TI_VFP_SUPPORT__)\r
- ;Determine if the task maintains an FPU context.\r
- LDR R0, ulFPUContextConst\r
- LDR R0, [R0]\r
-\r
- ; Test the flag\r
- CMP R0, #0\r
-\r
- ; If the task is not using a floating point context then skip the\r
- ; saving of the FPU registers.\r
- BEQ PC+3\r
- FSTMDBD LR!, {D0-D15}\r
- FMRX R1, FPSCR\r
- STMFD LR!, {R1}\r
-\r
- ; Save the flag\r
- STMDB LR!, {R0}\r
- .endif\r
-\r
- ; Store the new top of stack for the task.\r
- LDR R0, pxCurrentTCBConst\r
- LDR R0, [R0]\r
- STR LR, [R0]\r
-\r
- .endm\r
-\r
-;/*-----------------------------------------------------------*/\r
-;\r
-; Restore Task Context\r
-;\r
-portRESTORE_CONTEXT .macro\r
- LDR R0, pxCurrentTCBConst\r
- LDR R0, [R0]\r
- LDR LR, [R0]\r
-\r
- .if (__TI_VFP_SUPPORT__)\r
- ; The floating point context flag is the first thing on the stack.\r
- LDR R0, ulFPUContextConst\r
- LDMFD LR!, {R1}\r
- STR R1, [R0]\r
-\r
- ; Test the flag\r
- CMP R1, #0\r
-\r
- ; If the task is not using a floating point context then skip the\r
- ; VFP register loads.\r
- BEQ PC+3\r
-\r
- ; Restore the floating point context.\r
- LDMFD LR!, {R0}\r
- FLDMIAD LR!, {D0-D15}\r
- FMXR FPSCR, R0\r
- .endif\r
-\r
- ; Get the SPSR from the stack.\r
- LDMFD LR!, {R0}\r
- MSR SPSR_CF, R0\r
-\r
- ; Restore all system mode registers for the task.\r
- LDMFD LR, {R0-R14}^\r
-\r
- ; Restore the return address.\r
- LDR LR, [LR, #+60]\r
-\r
- ; And return - correcting the offset in the LR to obtain the\r
- ; correct address.\r
- SUBS PC, LR, #4\r
- .endm\r
-\r
-;/*-----------------------------------------------------------*/\r
-; Start the first task by restoring its context.\r
-\r
- .def vPortStartFirstTask\r
-\r
-vPortStartFirstTask:\r
- portRESTORE_CONTEXT\r
-\r
-;/*-----------------------------------------------------------*/\r
-; Yield to another task.\r
-\r
- .def vPortYieldProcessor\r
-\r
-vPortYieldProcessor:\r
- ; Within an IRQ ISR the link register has an offset from the true return\r
- ; address. SWI doesn't do this. Add the offset manually so the ISR\r
- ; return code can be used.\r
- ADD LR, LR, #4\r
-\r
- ; First save the context of the current task.\r
- portSAVE_CONTEXT\r
-\r
- ; Select the next task to execute. */\r
- BL vTaskSwitchContext\r
-\r
- ; Restore the context of the task selected to execute.\r
- portRESTORE_CONTEXT\r
-\r
-;/*-----------------------------------------------------------*/\r
-; Yield to another task from within the FreeRTOS API\r
-\r
- .def vPortYeildWithinAPI\r
-\r
-vPortYeildWithinAPI:\r
- ; Save the context of the current task.\r
-\r
- portSAVE_CONTEXT\r
- ; Clear SSI flag.\r
- MOVW R0, #0xFFF4\r
- MOVT R0, #0xFFFF\r
- LDR R0, [R0]\r
-\r
- ; Select the next task to execute. */\r
- BL vTaskSwitchContext\r
-\r
- ; Restore the context of the task selected to execute.\r
- portRESTORE_CONTEXT\r
-\r
-;/*-----------------------------------------------------------*/\r
-; Preemptive Tick\r
-\r
- .def vPortPreemptiveTick\r
-\r
-vPortPreemptiveTick:\r
-\r
- ; Save the context of the current task.\r
- portSAVE_CONTEXT\r
-\r
- ; Clear interrupt flag\r
- MOVW R0, #0xFC88\r
- MOVT R0, #0xFFFF\r
- MOV R1, #1\r
- STR R1, [R0]\r
-\r
- ; Increment the tick count, making any adjustments to the blocked lists\r
- ; that may be necessary.\r
- BL vTaskIncrementTick\r
-\r
- ; Select the next task to execute.\r
- BL vTaskSwitchContext\r
-\r
- ; Restore the context of the task selected to execute.\r
- portRESTORE_CONTEXT\r
-\r
-;-------------------------------------------------------------------------------\r
-\r
- .def ulPortCountLeadingZeros\r
-\r
-ulPortCountLeadingZeros:\r
-\r
- CLZ R0, R0\r
- BX LR\r
-\r
-;-------------------------------------------------------------------------------\r
-\r
- .if (__TI_VFP_SUPPORT__)\r
-\r
- .def vPortInitialiseFPSCR\r
-\r
-vPortInitialiseFPSCR:\r
-\r
- MOV R0, #0\r
- FMXR FPSCR, R0\r
- BX LR\r
-\r
- .endif ;__TI_VFP_SUPPORT__\r
-\r
-\r
-pxCurrentTCBConst .word pxCurrentTCB\r
-ulFPUContextConst .word ulTaskHasFPUContext\r
-;-------------------------------------------------------------------------------\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
-\r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-/*-----------------------------------------------------------\r
- * Portable layer API. Each function must be defined for each port.\r
- *----------------------------------------------------------*/\r
-\r
-#ifndef PORTABLE_H\r
-#define PORTABLE_H\r
-\r
-/* Include the macro file relevant to the port being used. */\r
-\r
-#ifdef OPEN_WATCOM_INDUSTRIAL_PC_PORT\r
- #include "..\..\Source\portable\owatcom\16bitdos\pc\portmacro.h"\r
- typedef void ( __interrupt __far *pxISR )();\r
-#endif\r
-\r
-#ifdef OPEN_WATCOM_FLASH_LITE_186_PORT\r
- #include "..\..\Source\portable\owatcom\16bitdos\flsh186\portmacro.h"\r
- typedef void ( __interrupt __far *pxISR )();\r
-#endif\r
-\r
-#ifdef GCC_MEGA_AVR\r
- #include "../portable/GCC/ATMega323/portmacro.h"\r
-#endif\r
-\r
-#ifdef IAR_MEGA_AVR\r
- #include "../portable/IAR/ATMega323/portmacro.h"\r
-#endif\r
-\r
-#ifdef MPLAB_PIC24_PORT\r
- #include "..\..\Source\portable\MPLAB\PIC24_dsPIC\portmacro.h"\r
-#endif\r
-\r
-#ifdef MPLAB_DSPIC_PORT\r
- #include "..\..\Source\portable\MPLAB\PIC24_dsPIC\portmacro.h"\r
-#endif\r
-\r
-#ifdef MPLAB_PIC18F_PORT\r
- #include "..\..\Source\portable\MPLAB\PIC18F\portmacro.h"\r
-#endif\r
-\r
-#ifdef MPLAB_PIC32MX_PORT\r
- #include "..\..\Source\portable\MPLAB\PIC32MX\portmacro.h"\r
-#endif\r
-\r
-#ifdef _FEDPICC\r
- #include "libFreeRTOS/Include/portmacro.h"\r
-#endif\r
-\r
-#ifdef SDCC_CYGNAL\r
- #include "../../Source/portable/SDCC/Cygnal/portmacro.h"\r
-#endif\r
-\r
-#ifdef GCC_ARM7\r
- #include "../../Source/portable/GCC/ARM7_LPC2000/portmacro.h"\r
-#endif\r
-\r
-#ifdef GCC_ARM7_ECLIPSE\r
- #include "portmacro.h"\r
-#endif\r
-\r
-#ifdef ROWLEY_LPC23xx\r
- #include "../../Source/portable/GCC/ARM7_LPC23xx/portmacro.h"\r
-#endif\r
-\r
-#ifdef IAR_MSP430\r
- #include "..\..\Source\portable\IAR\MSP430\portmacro.h" \r
-#endif\r
- \r
-#ifdef GCC_MSP430\r
- #include "../../Source/portable/GCC/MSP430F449/portmacro.h"\r
-#endif\r
-\r
-#ifdef ROWLEY_MSP430\r
- #include "../../Source/portable/Rowley/MSP430F449/portmacro.h"\r
-#endif\r
-\r
-#ifdef ARM7_LPC21xx_KEIL_RVDS\r
- #include "..\..\Source\portable\RVDS\ARM7_LPC21xx\portmacro.h"\r
-#endif\r
-\r
-#ifdef SAM7_GCC\r
- #include "../../Source/portable/GCC/ARM7_AT91SAM7S/portmacro.h"\r
-#endif\r
-\r
-#ifdef SAM7_IAR\r
- #include "..\..\Source\portable\IAR\AtmelSAM7S64\portmacro.h"\r
-#endif\r
-\r
-#ifdef SAM9XE_IAR\r
- #include "..\..\Source\portable\IAR\AtmelSAM9XE\portmacro.h"\r
-#endif\r
-\r
-#ifdef LPC2000_IAR\r
- #include "..\..\Source\portable\IAR\LPC2000\portmacro.h"\r
-#endif\r
-\r
-#ifdef STR71X_IAR\r
- #include "..\..\Source\portable\IAR\STR71x\portmacro.h"\r
-#endif\r
-\r
-#ifdef STR75X_IAR\r
- #include "..\..\Source\portable\IAR\STR75x\portmacro.h"\r
-#endif\r
- \r
-#ifdef STR75X_GCC\r
- #include "..\..\Source\portable\GCC\STR75x\portmacro.h"\r
-#endif\r
-\r
-#ifdef STR91X_IAR\r
- #include "..\..\Source\portable\IAR\STR91x\portmacro.h"\r
-#endif\r
- \r
-#ifdef GCC_H8S\r
- #include "../../Source/portable/GCC/H8S2329/portmacro.h"\r
-#endif\r
-\r
-#ifdef GCC_AT91FR40008\r
- #include "../../Source/portable/GCC/ARM7_AT91FR40008/portmacro.h"\r
-#endif\r
-\r
-#ifdef RVDS_ARMCM3_LM3S102\r
- #include "../../Source/portable/RVDS/ARM_CM3/portmacro.h"\r
-#endif\r
-\r
-#ifdef GCC_ARMCM3_LM3S102\r
- #include "../../Source/portable/GCC/ARM_CM3/portmacro.h"\r
-#endif\r
-\r
-#ifdef GCC_ARMCM3\r
- #include "../../Source/portable/GCC/ARM_CM3/portmacro.h"\r
-#endif\r
-\r
-#ifdef IAR_ARM_CM3\r
- #include "../../Source/portable/IAR/ARM_CM3/portmacro.h"\r
-#endif\r
-\r
-#ifdef IAR_ARMCM3_LM\r
- #include "../../Source/portable/IAR/ARM_CM3/portmacro.h"\r
-#endif\r
- \r
-#ifdef HCS12_CODE_WARRIOR\r
- #include "../../Source/portable/CodeWarrior/HCS12/portmacro.h"\r
-#endif \r
-\r
-#ifdef MICROBLAZE_GCC\r
- #include "../../Source/portable/GCC/MicroBlaze/portmacro.h"\r
-#endif\r
-\r
-#ifdef TERN_EE\r
- #include "..\..\Source\portable\Paradigm\Tern_EE\small\portmacro.h"\r
-#endif\r
-\r
-#ifdef GCC_HCS12\r
- #include "../../Source/portable/GCC/HCS12/portmacro.h"\r
-#endif\r
-\r
-#ifdef GCC_MCF5235\r
- #include "../../Source/portable/GCC/MCF5235/portmacro.h"\r
-#endif\r
-\r
-#ifdef COLDFIRE_V2_GCC\r
- #include "../../../Source/portable/GCC/ColdFire_V2/portmacro.h"\r
-#endif\r
-\r
-#ifdef COLDFIRE_V2_CODEWARRIOR\r
- #include "../../Source/portable/CodeWarrior/ColdFire_V2/portmacro.h"\r
-#endif\r
-\r
-#ifdef GCC_PPC405\r
- #include "../../Source/portable/GCC/PPC405_Xilinx/portmacro.h"\r
-#endif\r
-\r
-#ifdef GCC_PPC440\r
- #include "../../Source/portable/GCC/PPC440_Xilinx/portmacro.h"\r
-#endif\r
-\r
-#ifdef _16FX_SOFTUNE\r
- #include "..\..\Source\portable\Softune\MB96340\portmacro.h"\r
-#endif\r
-\r
-#ifdef BCC_INDUSTRIAL_PC_PORT\r
- /* A short file name has to be used in place of the normal\r
- FreeRTOSConfig.h when using the Borland compiler. */\r
- #include "frconfig.h"\r
- #include "..\portable\BCC\16BitDOS\PC\prtmacro.h"\r
- typedef void ( __interrupt __far *pxISR )();\r
-#endif\r
-\r
-#ifdef BCC_FLASH_LITE_186_PORT\r
- /* A short file name has to be used in place of the normal\r
- FreeRTOSConfig.h when using the Borland compiler. */\r
- #include "frconfig.h"\r
- #include "..\portable\BCC\16BitDOS\flsh186\prtmacro.h"\r
- typedef void ( __interrupt __far *pxISR )();\r
-#endif\r
-\r
-#ifdef __GNUC__\r
- #ifdef __AVR32_AVR32A__\r
- #include "portmacro.h"\r
- #endif\r
-#endif\r
-\r
-#ifdef __ICCAVR32__\r
- #ifdef __CORE__\r
- #if __CORE__ == __AVR32A__\r
- #include "portmacro.h"\r
- #endif\r
- #endif\r
-#endif\r
-\r
-#ifdef __91467D\r
- #include "portmacro.h"\r
-#endif\r
-\r
-#ifdef __96340\r
- #include "portmacro.h"\r
-#endif\r
-\r
-\r
-#ifdef __IAR_V850ES_Fx3__\r
- #include "../../Source/portable/IAR/V850ES/portmacro.h"\r
-#endif\r
-\r
-#ifdef __IAR_V850ES_Jx3__\r
- #include "../../Source/portable/IAR/V850ES/portmacro.h"\r
-#endif\r
-\r
-#ifdef __IAR_V850ES_Jx3_L__\r
- #include "../../Source/portable/IAR/V850ES/portmacro.h"\r
-#endif\r
-\r
-#ifdef __IAR_V850ES_Jx2__\r
- #include "../../Source/portable/IAR/V850ES/portmacro.h"\r
-#endif\r
-\r
-#ifdef __IAR_V850ES_Hx2__\r
- #include "../../Source/portable/IAR/V850ES/portmacro.h"\r
-#endif\r
-\r
-#ifdef __IAR_78K0R_Kx3__\r
- #include "../../Source/portable/IAR/78K0R/portmacro.h"\r
-#endif\r
- \r
-#ifdef __IAR_78K0R_Kx3L__\r
- #include "../../Source/portable/IAR/78K0R/portmacro.h"\r
-#endif\r
- \r
-/* Catch all to ensure portmacro.h is included in the build. Newer demos\r
-have the path as part of the project options, rather than as relative from\r
-the project location. If portENTER_CRITICAL() has not been defined then\r
-portmacro.h has not yet been included - as every portmacro.h provides a\r
-portENTER_CRITICAL() definition. Check the demo application for your demo\r
-to find the path to the correct portmacro.h file. */\r
-#ifndef portENTER_CRITICAL\r
- #include "portmacro.h" \r
-#endif\r
- \r
-#if portBYTE_ALIGNMENT == 8\r
- #define portBYTE_ALIGNMENT_MASK ( 0x0007 )\r
-#endif\r
-\r
-#if portBYTE_ALIGNMENT == 4\r
- #define portBYTE_ALIGNMENT_MASK ( 0x0003 )\r
-#endif\r
-\r
-#if portBYTE_ALIGNMENT == 2\r
- #define portBYTE_ALIGNMENT_MASK ( 0x0001 )\r
-#endif\r
-\r
-#if portBYTE_ALIGNMENT == 1\r
- #define portBYTE_ALIGNMENT_MASK ( 0x0000 )\r
-#endif\r
-\r
-#ifndef portBYTE_ALIGNMENT_MASK\r
- #error "Invalid portBYTE_ALIGNMENT definition"\r
-#endif\r
-\r
-#ifndef portNUM_CONFIGURABLE_REGIONS\r
- #define portNUM_CONFIGURABLE_REGIONS 1\r
-#endif\r
-\r
-#ifdef __cplusplus\r
-extern "C" {\r
-#endif\r
-\r
-#include "mpu_wrappers.h"\r
-\r
-/*\r
- * Setup the stack of a new task so it is ready to be placed under the\r
- * scheduler control. The registers have to be placed on the stack in\r
- * the order that the port expects to find them.\r
- *\r
- */\r
-#if( portUSING_MPU_WRAPPERS == 1 )\r
- portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE pxCode, void *pvParameters, portBASE_TYPE xRunPrivileged ) PRIVILEGED_FUNCTION;\r
-#else\r
- portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE pxCode, void *pvParameters );\r
-#endif\r
-\r
-/*\r
- * Map to the memory management routines required for the port.\r
- */\r
-void *pvPortMalloc( size_t xSize ) PRIVILEGED_FUNCTION;\r
-void vPortFree( void *pv ) PRIVILEGED_FUNCTION;\r
-void vPortInitialiseBlocks( void ) PRIVILEGED_FUNCTION;\r
-size_t xPortGetFreeHeapSize( void ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * Setup the hardware ready for the scheduler to take control. This generally\r
- * sets up a tick interrupt and sets timers for the correct tick frequency.\r
- */\r
-portBASE_TYPE xPortStartScheduler( void ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * Undo any hardware/ISR setup that was performed by xPortStartScheduler() so\r
- * the hardware is left in its original condition after the scheduler stops\r
- * executing.\r
- */\r
-void vPortEndScheduler( void ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * The structures and methods of manipulating the MPU are contained within the\r
- * port layer.\r
- *\r
- * Fills the xMPUSettings structure with the memory region information\r
- * contained in xRegions.\r
- */\r
-#if( portUSING_MPU_WRAPPERS == 1 ) \r
- struct xMEMORY_REGION;\r
- void vPortStoreTaskMPUSettings( xMPU_SETTINGS *xMPUSettings, const struct xMEMORY_REGION * const xRegions, portSTACK_TYPE *pxBottomOfStack, unsigned short usStackDepth ) PRIVILEGED_FUNCTION;\r
-#endif\r
-\r
-#ifdef __cplusplus\r
-}\r
-#endif\r
-\r
-#endif /* PORTABLE_H */\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
- \r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-#ifndef __PORTMACRO_H__\r
-#define __PORTMACRO_H__\r
-\r
-/*-----------------------------------------------------------\r
- * Port specific definitions.\r
- *\r
- * The settings in this file configure FreeRTOS correctly for the\r
- * given hardware and compiler.\r
- *\r
- * These settings should not be altered.\r
- *-----------------------------------------------------------\r
- */\r
-\r
-/* Type definitions. */\r
-#define portCHAR char\r
-#define portFLOAT float\r
-#define portDOUBLE double\r
-#define portLONG long\r
-#define portSHORT short\r
-#define portSTACK_TYPE unsigned long\r
-#define portBASE_TYPE long\r
-\r
-#if (configUSE_16_BIT_TICKS == 1)\r
- typedef unsigned portSHORT portTickType;\r
- #define portMAX_DELAY (portTickType) 0xFFFF\r
-#else\r
- typedef unsigned portLONG portTickType;\r
- #define portMAX_DELAY (portTickType) 0xFFFFFFFFF\r
-#endif\r
-\r
-\r
-/* Architecture specifics. */\r
-#define portSTACK_GROWTH (-1)\r
-#define portTICK_RATE_MS ((portTickType) 1000 / configTICK_RATE_HZ) \r
-#define portBYTE_ALIGNMENT 8\r
-\r
-/* Critical section handling. */\r
-extern void vPortEnterCritical(void);\r
-extern void vPortExitCritical(void);\r
-#define portENTER_CRITICAL() vPortEnterCritical()\r
-#define portEXIT_CRITICAL() vPortExitCritical()\r
-#define portDISABLE_INTERRUPTS() asm( " CPSID I" )\r
-#define portENABLE_INTERRUPTS() asm( " CPSIE I" )\r
-\r
-/* Scheduler utilities. */\r
-#define portYIELD() _call_swi( 0 )\r
-#define portSYS_SSIR1_REG ( * ( ( volatile unsigned long * ) 0xFFFFFFB0 ) )\r
-#define portSYS_SSIR1_SSKEY ( 0x7500UL )\r
-#define portYIELD_WITHIN_API() { portSYS_SSIR1_REG = portSYS_SSIR1_SSKEY; ( void ) portSYS_SSIR1_REG; }\r
-#define portYIELD_FROM_ISR() { portSYS_SSIR1_REG = portSYS_SSIR1_SSKEY; ( void ) portSYS_SSIR1_REG; }\r
-\r
-/* Architecture specific optimisations. */\r
-#if configUSE_PORT_OPTIMISED_TASK_SELECTION == 1\r
-\r
- /* Generic helper function. */\r
- unsigned long ulPortCountLeadingZeros( unsigned long ulBitmap );\r
-\r
- /* Check the configuration. */\r
- #if( configMAX_PRIORITIES > 32 )\r
- #error configUSE_PORT_OPTIMISED_TASK_SELECTION can only be set to 1 when configMAX_PRIORITIES is less than or equal to 32. It is very rare that a system requires more than 10 to 15 difference priorities as tasks that share a priority will time slice.\r
- #endif\r
-\r
- /* Store/clear the ready priorities in a bit map. */\r
- #define portRECORD_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) |= ( 1UL << ( uxPriority ) )\r
- #define portRESET_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) &= ~( 1UL << ( uxPriority ) )\r
-\r
- /*-----------------------------------------------------------*/\r
-\r
- #define portGET_HIGHEST_PRIORITY( uxTopPriority, uxReadyPriorities ) uxTopPriority = ( 31 - ulPortCountLeadingZeros( ( uxReadyPriorities ) ) )\r
-\r
-#endif /* configUSE_PORT_OPTIMISED_TASK_SELECTION */\r
-\r
-\r
-/* Task function macros as described on the FreeRTOS.org WEB site. */\r
-#define portTASK_FUNCTION(vFunction, pvParameters) void vFunction(void *pvParameters)\r
-#define portTASK_FUNCTION_PROTO(vFunction, pvParameters) void vFunction(void *pvParameters)\r
-\r
-#endif /* __PORTMACRO_H__ */\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
-\r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-#ifndef PROJDEFS_H\r
-#define PROJDEFS_H\r
-\r
-/* Defines the prototype to which task functions must conform. */\r
-typedef void (*pdTASK_CODE)( void * );\r
-\r
-#define pdTRUE ( 1 )\r
-#define pdFALSE ( 0 )\r
-\r
-#define pdPASS ( 1 )\r
-#define pdFAIL ( 0 )\r
-#define errQUEUE_EMPTY ( 0 )\r
-#define errQUEUE_FULL ( 0 )\r
-\r
-/* Error definitions. */\r
-#define errCOULD_NOT_ALLOCATE_REQUIRED_MEMORY ( -1 )\r
-#define errNO_TASK_TO_RUN ( -2 )\r
-#define errQUEUE_BLOCKED ( -4 )\r
-#define errQUEUE_YIELD ( -5 )\r
-\r
-#endif /* PROJDEFS_H */\r
-\r
-\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
-\r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
-\r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- http://www.FreeRTOS.org - Documentation, training, latest information,\r
- license and contact details.\r
-\r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell\r
- the code with commercial support, indemnification, and middleware, under\r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under\r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-#include <stdlib.h>\r
-#include <string.h>\r
-\r
-/* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE prevents task.h from redefining\r
-all the API functions to use the MPU wrappers. That should only be done when\r
-task.h is included from an application file. */\r
-#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE\r
-\r
-#include "FreeRTOS.h"\r
-#include "task.h"\r
-\r
-#if ( configUSE_CO_ROUTINES == 1 )\r
- #include "croutine.h"\r
-#endif\r
-\r
-#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE\r
-\r
-/*-----------------------------------------------------------\r
- * PUBLIC LIST API documented in list.h\r
- *----------------------------------------------------------*/\r
-\r
-/* Constants used with the cRxLock and xTxLock structure members. */\r
-#define queueUNLOCKED ( ( signed portBASE_TYPE ) -1 )\r
-#define queueLOCKED_UNMODIFIED ( ( signed portBASE_TYPE ) 0 )\r
-\r
-#define queueERRONEOUS_UNBLOCK ( -1 )\r
-\r
-/* For internal use only. */\r
-#define queueSEND_TO_BACK ( 0 )\r
-#define queueSEND_TO_FRONT ( 1 )\r
-\r
-/* Effectively make a union out of the xQUEUE structure. */\r
-#define pxMutexHolder pcTail\r
-#define uxQueueType pcHead\r
-#define uxRecursiveCallCount pcReadFrom\r
-#define queueQUEUE_IS_MUTEX NULL\r
-\r
-/* Semaphores do not actually store or copy data, so have an items size of\r
-zero. */\r
-#define queueSEMAPHORE_QUEUE_ITEM_LENGTH ( ( unsigned portBASE_TYPE ) 0 )\r
-#define queueDONT_BLOCK ( ( portTickType ) 0U )\r
-#define queueMUTEX_GIVE_BLOCK_TIME ( ( portTickType ) 0U )\r
-\r
-/* These definitions *must* match those in queue.h. */\r
-#define queueQUEUE_TYPE_BASE ( 0U )\r
-#define queueQUEUE_TYPE_MUTEX ( 1U )\r
-#define queueQUEUE_TYPE_COUNTING_SEMAPHORE ( 2U )\r
-#define queueQUEUE_TYPE_BINARY_SEMAPHORE ( 3U )\r
-#define queueQUEUE_TYPE_RECURSIVE_MUTEX ( 4U )\r
-\r
-/*\r
- * Definition of the queue used by the scheduler.\r
- * Items are queued by copy, not reference.\r
- */\r
-typedef struct QueueDefinition\r
-{\r
- signed char *pcHead; /*< Points to the beginning of the queue storage area. */\r
- signed char *pcTail; /*< Points to the byte at the end of the queue storage area. Once more byte is allocated than necessary to store the queue items, this is used as a marker. */\r
-\r
- signed char *pcWriteTo; /*< Points to the free next place in the storage area. */\r
- signed char *pcReadFrom; /*< Points to the last place that a queued item was read from. */\r
-\r
- xList xTasksWaitingToSend; /*< List of tasks that are blocked waiting to post onto this queue. Stored in priority order. */\r
- xList xTasksWaitingToReceive; /*< List of tasks that are blocked waiting to read from this queue. Stored in priority order. */\r
-\r
- volatile unsigned portBASE_TYPE uxMessagesWaiting;/*< The number of items currently in the queue. */\r
- unsigned portBASE_TYPE uxLength; /*< The length of the queue defined as the number of items it will hold, not the number of bytes. */\r
- unsigned portBASE_TYPE uxItemSize; /*< The size of each items that the queue will hold. */\r
-\r
- volatile signed portBASE_TYPE xRxLock; /*< Stores the number of items received from the queue (removed from the queue) while the queue was locked. Set to queueUNLOCKED when the queue is not locked. */\r
- volatile signed portBASE_TYPE xTxLock; /*< Stores the number of items transmitted to the queue (added to the queue) while the queue was locked. Set to queueUNLOCKED when the queue is not locked. */\r
-\r
- #if ( configUSE_TRACE_FACILITY == 1 )\r
- unsigned char ucQueueNumber;\r
- unsigned char ucQueueType;\r
- #endif\r
-\r
-} xQUEUE;\r
-/*-----------------------------------------------------------*/\r
-\r
-/*\r
- * Inside this file xQueueHandle is a pointer to a xQUEUE structure.\r
- * To keep the definition private the API header file defines it as a\r
- * pointer to void.\r
- */\r
-typedef xQUEUE * xQueueHandle;\r
-\r
-/*\r
- * Prototypes for public functions are included here so we don't have to\r
- * include the API header file (as it defines xQueueHandle differently). These\r
- * functions are documented in the API header file.\r
- */\r
-xQueueHandle xQueueGenericCreate( unsigned portBASE_TYPE uxQueueLength, unsigned portBASE_TYPE uxItemSize, unsigned char ucQueueType ) PRIVILEGED_FUNCTION;\r
-signed portBASE_TYPE xQueueGenericSend( xQueueHandle pxQueue, const void * const pvItemToQueue, portTickType xTicksToWait, portBASE_TYPE xCopyPosition ) PRIVILEGED_FUNCTION;\r
-unsigned portBASE_TYPE uxQueueMessagesWaiting( const xQueueHandle pxQueue ) PRIVILEGED_FUNCTION;\r
-void vQueueDelete( xQueueHandle xQueue ) PRIVILEGED_FUNCTION;\r
-signed portBASE_TYPE xQueueGenericSendFromISR( xQueueHandle pxQueue, const void * const pvItemToQueue, signed portBASE_TYPE *pxHigherPriorityTaskWoken, portBASE_TYPE xCopyPosition ) PRIVILEGED_FUNCTION;\r
-signed portBASE_TYPE xQueueGenericReceive( xQueueHandle pxQueue, void * const pvBuffer, portTickType xTicksToWait, portBASE_TYPE xJustPeeking ) PRIVILEGED_FUNCTION;\r
-signed portBASE_TYPE xQueueReceiveFromISR( xQueueHandle pxQueue, void * const pvBuffer, signed portBASE_TYPE *pxHigherPriorityTaskWoken ) PRIVILEGED_FUNCTION;\r
-xQueueHandle xQueueCreateMutex( unsigned char ucQueueType ) PRIVILEGED_FUNCTION;\r
-xQueueHandle xQueueCreateCountingSemaphore( unsigned portBASE_TYPE uxCountValue, unsigned portBASE_TYPE uxInitialCount ) PRIVILEGED_FUNCTION;\r
-portBASE_TYPE xQueueTakeMutexRecursive( xQueueHandle xMutex, portTickType xBlockTime ) PRIVILEGED_FUNCTION;\r
-portBASE_TYPE xQueueGiveMutexRecursive( xQueueHandle xMutex ) PRIVILEGED_FUNCTION;\r
-signed portBASE_TYPE xQueueAltGenericSend( xQueueHandle pxQueue, const void * const pvItemToQueue, portTickType xTicksToWait, portBASE_TYPE xCopyPosition ) PRIVILEGED_FUNCTION;\r
-signed portBASE_TYPE xQueueAltGenericReceive( xQueueHandle pxQueue, void * const pvBuffer, portTickType xTicksToWait, portBASE_TYPE xJustPeeking ) PRIVILEGED_FUNCTION;\r
-signed portBASE_TYPE xQueueIsQueueEmptyFromISR( const xQueueHandle pxQueue ) PRIVILEGED_FUNCTION;\r
-signed portBASE_TYPE xQueueIsQueueFullFromISR( const xQueueHandle pxQueue ) PRIVILEGED_FUNCTION;\r
-unsigned portBASE_TYPE uxQueueMessagesWaitingFromISR( const xQueueHandle pxQueue ) PRIVILEGED_FUNCTION;\r
-void vQueueWaitForMessageRestricted( xQueueHandle pxQueue, portTickType xTicksToWait ) PRIVILEGED_FUNCTION;\r
-unsigned char ucQueueGetQueueNumber( xQueueHandle pxQueue ) PRIVILEGED_FUNCTION;\r
-void vQueueSetQueueNumber( xQueueHandle pxQueue, unsigned char ucQueueNumber ) PRIVILEGED_FUNCTION;\r
-unsigned char ucQueueGetQueueType( xQueueHandle pxQueue ) PRIVILEGED_FUNCTION;\r
-portBASE_TYPE xQueueGenericReset( xQueueHandle pxQueue, portBASE_TYPE xNewQueue ) PRIVILEGED_FUNCTION;\r
-xTaskHandle xQueueGetMutexHolder( xQueueHandle xSemaphore ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * Co-routine queue functions differ from task queue functions. Co-routines are\r
- * an optional component.\r
- */\r
-#if configUSE_CO_ROUTINES == 1\r
- signed portBASE_TYPE xQueueCRSendFromISR( xQueueHandle pxQueue, const void *pvItemToQueue, signed portBASE_TYPE xCoRoutinePreviouslyWoken ) PRIVILEGED_FUNCTION;\r
- signed portBASE_TYPE xQueueCRReceiveFromISR( xQueueHandle pxQueue, void *pvBuffer, signed portBASE_TYPE *pxTaskWoken ) PRIVILEGED_FUNCTION;\r
- signed portBASE_TYPE xQueueCRSend( xQueueHandle pxQueue, const void *pvItemToQueue, portTickType xTicksToWait ) PRIVILEGED_FUNCTION;\r
- signed portBASE_TYPE xQueueCRReceive( xQueueHandle pxQueue, void *pvBuffer, portTickType xTicksToWait ) PRIVILEGED_FUNCTION;\r
-#endif\r
-\r
-/*\r
- * The queue registry is just a means for kernel aware debuggers to locate\r
- * queue structures. It has no other purpose so is an optional component.\r
- */\r
-#if configQUEUE_REGISTRY_SIZE > 0\r
-\r
- /* The type stored within the queue registry array. This allows a name\r
- to be assigned to each queue making kernel aware debugging a little\r
- more user friendly. */\r
- typedef struct QUEUE_REGISTRY_ITEM\r
- {\r
- signed char *pcQueueName;\r
- xQueueHandle xHandle;\r
- } xQueueRegistryItem;\r
-\r
- /* The queue registry is simply an array of xQueueRegistryItem structures.\r
- The pcQueueName member of a structure being NULL is indicative of the\r
- array position being vacant. */\r
- xQueueRegistryItem xQueueRegistry[ configQUEUE_REGISTRY_SIZE ];\r
-\r
- /* Removes a queue from the registry by simply setting the pcQueueName\r
- member to NULL. */\r
- static void vQueueUnregisterQueue( xQueueHandle xQueue ) PRIVILEGED_FUNCTION;\r
- void vQueueAddToRegistry( xQueueHandle xQueue, signed char *pcQueueName ) PRIVILEGED_FUNCTION;\r
-#endif\r
-\r
-/*\r
- * Unlocks a queue locked by a call to prvLockQueue. Locking a queue does not\r
- * prevent an ISR from adding or removing items to the queue, but does prevent\r
- * an ISR from removing tasks from the queue event lists. If an ISR finds a\r
- * queue is locked it will instead increment the appropriate queue lock count\r
- * to indicate that a task may require unblocking. When the queue in unlocked\r
- * these lock counts are inspected, and the appropriate action taken.\r
- */\r
-static void prvUnlockQueue( xQueueHandle pxQueue ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * Uses a critical section to determine if there is any data in a queue.\r
- *\r
- * @return pdTRUE if the queue contains no items, otherwise pdFALSE.\r
- */\r
-static signed portBASE_TYPE prvIsQueueEmpty( const xQueueHandle pxQueue ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * Uses a critical section to determine if there is any space in a queue.\r
- *\r
- * @return pdTRUE if there is no space, otherwise pdFALSE;\r
- */\r
-static signed portBASE_TYPE prvIsQueueFull( const xQueueHandle pxQueue ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * Copies an item into the queue, either at the front of the queue or the\r
- * back of the queue.\r
- */\r
-static void prvCopyDataToQueue( xQUEUE *pxQueue, const void *pvItemToQueue, portBASE_TYPE xPosition ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * Copies an item out of a queue.\r
- */\r
-static void prvCopyDataFromQueue( xQUEUE * const pxQueue, const void *pvBuffer ) PRIVILEGED_FUNCTION;\r
-/*-----------------------------------------------------------*/\r
-\r
-/*\r
- * Macro to mark a queue as locked. Locking a queue prevents an ISR from\r
- * accessing the queue event lists.\r
- */\r
-#define prvLockQueue( pxQueue ) \\r
- taskENTER_CRITICAL(); \\r
- { \\r
- if( ( pxQueue )->xRxLock == queueUNLOCKED ) \\r
- { \\r
- ( pxQueue )->xRxLock = queueLOCKED_UNMODIFIED; \\r
- } \\r
- if( ( pxQueue )->xTxLock == queueUNLOCKED ) \\r
- { \\r
- ( pxQueue )->xTxLock = queueLOCKED_UNMODIFIED; \\r
- } \\r
- } \\r
- taskEXIT_CRITICAL()\r
-/*-----------------------------------------------------------*/\r
-\r
-\r
-/*-----------------------------------------------------------\r
- * PUBLIC QUEUE MANAGEMENT API documented in queue.h\r
- *----------------------------------------------------------*/\r
-\r
-portBASE_TYPE xQueueGenericReset( xQueueHandle pxQueue, portBASE_TYPE xNewQueue )\r
-{\r
- configASSERT( pxQueue );\r
-\r
- taskENTER_CRITICAL();\r
- {\r
- pxQueue->pcTail = pxQueue->pcHead + ( pxQueue->uxLength * pxQueue->uxItemSize );\r
- pxQueue->uxMessagesWaiting = ( unsigned portBASE_TYPE ) 0U;\r
- pxQueue->pcWriteTo = pxQueue->pcHead;\r
- pxQueue->pcReadFrom = pxQueue->pcHead + ( ( pxQueue->uxLength - ( unsigned portBASE_TYPE ) 1U ) * pxQueue->uxItemSize );\r
- pxQueue->xRxLock = queueUNLOCKED;\r
- pxQueue->xTxLock = queueUNLOCKED;\r
-\r
- if( xNewQueue == pdFALSE )\r
- {\r
- /* If there are tasks blocked waiting to read from the queue, then\r
- the tasks will remain blocked as after this function exits the queue\r
- will still be empty. If there are tasks blocked waiting to write to\r
- the queue, then one should be unblocked as after this function exits\r
- it will be possible to write to it. */\r
- if( listLIST_IS_EMPTY( &( pxQueue->xTasksWaitingToSend ) ) == pdFALSE )\r
- {\r
- if( xTaskRemoveFromEventList( &( pxQueue->xTasksWaitingToSend ) ) == pdTRUE )\r
- {\r
- portYIELD_WITHIN_API();\r
- }\r
- }\r
- }\r
- else\r
- {\r
- /* Ensure the event queues start in the correct state. */\r
- vListInitialise( &( pxQueue->xTasksWaitingToSend ) );\r
- vListInitialise( &( pxQueue->xTasksWaitingToReceive ) );\r
- }\r
- }\r
- taskEXIT_CRITICAL();\r
-\r
- /* A value is returned for calling semantic consistency with previous\r
- versions. */\r
- return pdPASS;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-xQueueHandle xQueueGenericCreate( unsigned portBASE_TYPE uxQueueLength, unsigned portBASE_TYPE uxItemSize, unsigned char ucQueueType )\r
-{\r
-xQUEUE *pxNewQueue;\r
-size_t xQueueSizeInBytes;\r
-xQueueHandle xReturn = NULL;\r
-\r
- /* Remove compiler warnings about unused parameters should\r
- configUSE_TRACE_FACILITY not be set to 1. */\r
- ( void ) ucQueueType;\r
-\r
- /* Allocate the new queue structure. */\r
- if( uxQueueLength > ( unsigned portBASE_TYPE ) 0 )\r
- {\r
- pxNewQueue = ( xQUEUE * ) pvPortMalloc( sizeof( xQUEUE ) );\r
- if( pxNewQueue != NULL )\r
- {\r
- /* Create the list of pointers to queue items. The queue is one byte\r
- longer than asked for to make wrap checking easier/faster. */\r
- xQueueSizeInBytes = ( size_t ) ( uxQueueLength * uxItemSize ) + ( size_t ) 1;\r
-\r
- pxNewQueue->pcHead = ( signed char * ) pvPortMalloc( xQueueSizeInBytes );\r
- if( pxNewQueue->pcHead != NULL )\r
- {\r
- /* Initialise the queue members as described above where the\r
- queue type is defined. */\r
- pxNewQueue->uxLength = uxQueueLength;\r
- pxNewQueue->uxItemSize = uxItemSize;\r
- xQueueGenericReset( pxNewQueue, pdTRUE );\r
- #if ( configUSE_TRACE_FACILITY == 1 )\r
- {\r
- pxNewQueue->ucQueueType = ucQueueType;\r
- }\r
- #endif /* configUSE_TRACE_FACILITY */\r
-\r
- traceQUEUE_CREATE( pxNewQueue );\r
- xReturn = pxNewQueue;\r
- }\r
- else\r
- {\r
- traceQUEUE_CREATE_FAILED( ucQueueType );\r
- vPortFree( pxNewQueue );\r
- }\r
- }\r
- }\r
-\r
- configASSERT( xReturn );\r
-\r
- return xReturn;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( configUSE_MUTEXES == 1 )\r
-\r
- xQueueHandle xQueueCreateMutex( unsigned char ucQueueType )\r
- {\r
- xQUEUE *pxNewQueue;\r
-\r
- /* Prevent compiler warnings about unused parameters if\r
- configUSE_TRACE_FACILITY does not equal 1. */\r
- ( void ) ucQueueType;\r
-\r
- /* Allocate the new queue structure. */\r
- pxNewQueue = ( xQUEUE * ) pvPortMalloc( sizeof( xQUEUE ) );\r
- if( pxNewQueue != NULL )\r
- {\r
- /* Information required for priority inheritance. */\r
- pxNewQueue->pxMutexHolder = NULL;\r
- pxNewQueue->uxQueueType = queueQUEUE_IS_MUTEX;\r
-\r
- /* Queues used as a mutex no data is actually copied into or out\r
- of the queue. */\r
- pxNewQueue->pcWriteTo = NULL;\r
- pxNewQueue->pcReadFrom = NULL;\r
-\r
- /* Each mutex has a length of 1 (like a binary semaphore) and\r
- an item size of 0 as nothing is actually copied into or out\r
- of the mutex. */\r
- pxNewQueue->uxMessagesWaiting = ( unsigned portBASE_TYPE ) 0U;\r
- pxNewQueue->uxLength = ( unsigned portBASE_TYPE ) 1U;\r
- pxNewQueue->uxItemSize = ( unsigned portBASE_TYPE ) 0U;\r
- pxNewQueue->xRxLock = queueUNLOCKED;\r
- pxNewQueue->xTxLock = queueUNLOCKED;\r
-\r
- #if ( configUSE_TRACE_FACILITY == 1 )\r
- {\r
- pxNewQueue->ucQueueType = ucQueueType;\r
- }\r
- #endif\r
-\r
- /* Ensure the event queues start with the correct state. */\r
- vListInitialise( &( pxNewQueue->xTasksWaitingToSend ) );\r
- vListInitialise( &( pxNewQueue->xTasksWaitingToReceive ) );\r
-\r
- traceCREATE_MUTEX( pxNewQueue );\r
-\r
- /* Start with the semaphore in the expected state. */\r
- xQueueGenericSend( pxNewQueue, NULL, ( portTickType ) 0U, queueSEND_TO_BACK );\r
- }\r
- else\r
- {\r
- traceCREATE_MUTEX_FAILED();\r
- }\r
-\r
- configASSERT( pxNewQueue );\r
- return pxNewQueue;\r
- }\r
-\r
-#endif /* configUSE_MUTEXES */\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( ( configUSE_MUTEXES == 1 ) && ( INCLUDE_xQueueGetMutexHolder == 1 ) )\r
-\r
- void* xQueueGetMutexHolder( xQueueHandle xSemaphore )\r
- {\r
- void *pxReturn;\r
-\r
- /* This function is called by xSemaphoreGetMutexHolder(), and should not\r
- be called directly. Note: This is is a good way of determining if the\r
- calling task is the mutex holder, but not a good way of determining the\r
- identity of the mutex holder, as the holder may change between the\r
- following critical section exiting and the function returning. */\r
- taskENTER_CRITICAL();\r
- {\r
- if( xSemaphore->uxQueueType == queueQUEUE_IS_MUTEX )\r
- {\r
- pxReturn = ( void * ) xSemaphore->pxMutexHolder;\r
- }\r
- else\r
- {\r
- pxReturn = NULL;\r
- }\r
- }\r
- taskEXIT_CRITICAL();\r
-\r
- return pxReturn;\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( configUSE_RECURSIVE_MUTEXES == 1 )\r
-\r
- portBASE_TYPE xQueueGiveMutexRecursive( xQueueHandle pxMutex )\r
- {\r
- portBASE_TYPE xReturn;\r
-\r
- configASSERT( pxMutex );\r
-\r
- /* If this is the task that holds the mutex then pxMutexHolder will not\r
- change outside of this task. If this task does not hold the mutex then\r
- pxMutexHolder can never coincidentally equal the tasks handle, and as\r
- this is the only condition we are interested in it does not matter if\r
- pxMutexHolder is accessed simultaneously by another task. Therefore no\r
- mutual exclusion is required to test the pxMutexHolder variable. */\r
- if( pxMutex->pxMutexHolder == xTaskGetCurrentTaskHandle() )\r
- {\r
- traceGIVE_MUTEX_RECURSIVE( pxMutex );\r
-\r
- /* uxRecursiveCallCount cannot be zero if pxMutexHolder is equal to\r
- the task handle, therefore no underflow check is required. Also,\r
- uxRecursiveCallCount is only modified by the mutex holder, and as\r
- there can only be one, no mutual exclusion is required to modify the\r
- uxRecursiveCallCount member. */\r
- ( pxMutex->uxRecursiveCallCount )--;\r
-\r
- /* Have we unwound the call count? */\r
- if( pxMutex->uxRecursiveCallCount == 0 )\r
- {\r
- /* Return the mutex. This will automatically unblock any other\r
- task that might be waiting to access the mutex. */\r
- xQueueGenericSend( pxMutex, NULL, queueMUTEX_GIVE_BLOCK_TIME, queueSEND_TO_BACK );\r
- }\r
-\r
- xReturn = pdPASS;\r
- }\r
- else\r
- {\r
- /* We cannot give the mutex because we are not the holder. */\r
- xReturn = pdFAIL;\r
-\r
- traceGIVE_MUTEX_RECURSIVE_FAILED( pxMutex );\r
- }\r
-\r
- return xReturn;\r
- }\r
-\r
-#endif /* configUSE_RECURSIVE_MUTEXES */\r
-/*-----------------------------------------------------------*/\r
-\r
-#if configUSE_RECURSIVE_MUTEXES == 1\r
-\r
- portBASE_TYPE xQueueTakeMutexRecursive( xQueueHandle pxMutex, portTickType xBlockTime )\r
- {\r
- portBASE_TYPE xReturn;\r
-\r
- configASSERT( pxMutex );\r
-\r
- /* Comments regarding mutual exclusion as per those within\r
- xQueueGiveMutexRecursive(). */\r
-\r
- traceTAKE_MUTEX_RECURSIVE( pxMutex );\r
-\r
- if( pxMutex->pxMutexHolder == xTaskGetCurrentTaskHandle() )\r
- {\r
- ( pxMutex->uxRecursiveCallCount )++;\r
- xReturn = pdPASS;\r
- }\r
- else\r
- {\r
- xReturn = xQueueGenericReceive( pxMutex, NULL, xBlockTime, pdFALSE );\r
-\r
- /* pdPASS will only be returned if we successfully obtained the mutex,\r
- we may have blocked to reach here. */\r
- if( xReturn == pdPASS )\r
- {\r
- ( pxMutex->uxRecursiveCallCount )++;\r
- }\r
- else\r
- {\r
- traceTAKE_MUTEX_RECURSIVE_FAILED( pxMutex );\r
- }\r
- }\r
-\r
- return xReturn;\r
- }\r
-\r
-#endif /* configUSE_RECURSIVE_MUTEXES */\r
-/*-----------------------------------------------------------*/\r
-\r
-#if configUSE_COUNTING_SEMAPHORES == 1\r
-\r
- xQueueHandle xQueueCreateCountingSemaphore( unsigned portBASE_TYPE uxCountValue, unsigned portBASE_TYPE uxInitialCount )\r
- {\r
- xQueueHandle pxHandle;\r
-\r
- pxHandle = xQueueGenericCreate( ( unsigned portBASE_TYPE ) uxCountValue, queueSEMAPHORE_QUEUE_ITEM_LENGTH, queueQUEUE_TYPE_COUNTING_SEMAPHORE );\r
-\r
- if( pxHandle != NULL )\r
- {\r
- pxHandle->uxMessagesWaiting = uxInitialCount;\r
-\r
- traceCREATE_COUNTING_SEMAPHORE();\r
- }\r
- else\r
- {\r
- traceCREATE_COUNTING_SEMAPHORE_FAILED();\r
- }\r
-\r
- configASSERT( pxHandle );\r
- return pxHandle;\r
- }\r
-\r
-#endif /* configUSE_COUNTING_SEMAPHORES */\r
-/*-----------------------------------------------------------*/\r
-\r
-signed portBASE_TYPE xQueueGenericSend( xQueueHandle pxQueue, const void * const pvItemToQueue, portTickType xTicksToWait, portBASE_TYPE xCopyPosition )\r
-{\r
-signed portBASE_TYPE xEntryTimeSet = pdFALSE;\r
-xTimeOutType xTimeOut;\r
-\r
- configASSERT( pxQueue );\r
- configASSERT( !( ( pvItemToQueue == NULL ) && ( pxQueue->uxItemSize != ( unsigned portBASE_TYPE ) 0U ) ) );\r
-\r
- /* This function relaxes the coding standard somewhat to allow return\r
- statements within the function itself. This is done in the interest\r
- of execution time efficiency. */\r
- for( ;; )\r
- {\r
- taskENTER_CRITICAL();\r
- {\r
- /* Is there room on the queue now? To be running we must be\r
- the highest priority task wanting to access the queue. */\r
- if( pxQueue->uxMessagesWaiting < pxQueue->uxLength )\r
- {\r
- traceQUEUE_SEND( pxQueue );\r
- prvCopyDataToQueue( pxQueue, pvItemToQueue, xCopyPosition );\r
-\r
- /* If there was a task waiting for data to arrive on the\r
- queue then unblock it now. */\r
- if( listLIST_IS_EMPTY( &( pxQueue->xTasksWaitingToReceive ) ) == pdFALSE )\r
- {\r
- if( xTaskRemoveFromEventList( &( pxQueue->xTasksWaitingToReceive ) ) == pdTRUE )\r
- {\r
- /* The unblocked task has a priority higher than\r
- our own so yield immediately. Yes it is ok to do\r
- this from within the critical section - the kernel\r
- takes care of that. */\r
- portYIELD_WITHIN_API();\r
- }\r
- }\r
-\r
- taskEXIT_CRITICAL();\r
-\r
- /* Return to the original privilege level before exiting the\r
- function. */\r
- return pdPASS;\r
- }\r
- else\r
- {\r
- if( xTicksToWait == ( portTickType ) 0 )\r
- {\r
- /* The queue was full and no block time is specified (or\r
- the block time has expired) so leave now. */\r
- taskEXIT_CRITICAL();\r
-\r
- /* Return to the original privilege level before exiting\r
- the function. */\r
- traceQUEUE_SEND_FAILED( pxQueue );\r
- return errQUEUE_FULL;\r
- }\r
- else if( xEntryTimeSet == pdFALSE )\r
- {\r
- /* The queue was full and a block time was specified so\r
- configure the timeout structure. */\r
- vTaskSetTimeOutState( &xTimeOut );\r
- xEntryTimeSet = pdTRUE;\r
- }\r
- }\r
- }\r
- taskEXIT_CRITICAL();\r
-\r
- /* Interrupts and other tasks can send to and receive from the queue\r
- now the critical section has been exited. */\r
-\r
- vTaskSuspendAll();\r
- prvLockQueue( pxQueue );\r
-\r
- /* Update the timeout state to see if it has expired yet. */\r
- if( xTaskCheckForTimeOut( &xTimeOut, &xTicksToWait ) == pdFALSE )\r
- {\r
- if( prvIsQueueFull( pxQueue ) != pdFALSE )\r
- {\r
- traceBLOCKING_ON_QUEUE_SEND( pxQueue );\r
- vTaskPlaceOnEventList( &( pxQueue->xTasksWaitingToSend ), xTicksToWait );\r
-\r
- /* Unlocking the queue means queue events can effect the\r
- event list. It is possible that interrupts occurring now\r
- remove this task from the event list again - but as the\r
- scheduler is suspended the task will go onto the pending\r
- ready last instead of the actual ready list. */\r
- prvUnlockQueue( pxQueue );\r
-\r
- /* Resuming the scheduler will move tasks from the pending\r
- ready list into the ready list - so it is feasible that this\r
- task is already in a ready list before it yields - in which\r
- case the yield will not cause a context switch unless there\r
- is also a higher priority task in the pending ready list. */\r
- if( xTaskResumeAll() == pdFALSE )\r
- {\r
- portYIELD_WITHIN_API();\r
- }\r
- }\r
- else\r
- {\r
- /* Try again. */\r
- prvUnlockQueue( pxQueue );\r
- ( void ) xTaskResumeAll();\r
- }\r
- }\r
- else\r
- {\r
- /* The timeout has expired. */\r
- prvUnlockQueue( pxQueue );\r
- ( void ) xTaskResumeAll();\r
-\r
- /* Return to the original privilege level before exiting the\r
- function. */\r
- traceQUEUE_SEND_FAILED( pxQueue );\r
- return errQUEUE_FULL;\r
- }\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-#if configUSE_ALTERNATIVE_API == 1\r
-\r
- signed portBASE_TYPE xQueueAltGenericSend( xQueueHandle pxQueue, const void * const pvItemToQueue, portTickType xTicksToWait, portBASE_TYPE xCopyPosition )\r
- {\r
- signed portBASE_TYPE xEntryTimeSet = pdFALSE;\r
- xTimeOutType xTimeOut;\r
-\r
- configASSERT( pxQueue );\r
- configASSERT( !( ( pvItemToQueue == NULL ) && ( pxQueue->uxItemSize != ( unsigned portBASE_TYPE ) 0U ) ) );\r
-\r
- for( ;; )\r
- {\r
- taskENTER_CRITICAL();\r
- {\r
- /* Is there room on the queue now? To be running we must be\r
- the highest priority task wanting to access the queue. */\r
- if( pxQueue->uxMessagesWaiting < pxQueue->uxLength )\r
- {\r
- traceQUEUE_SEND( pxQueue );\r
- prvCopyDataToQueue( pxQueue, pvItemToQueue, xCopyPosition );\r
-\r
- /* If there was a task waiting for data to arrive on the\r
- queue then unblock it now. */\r
- if( listLIST_IS_EMPTY( &( pxQueue->xTasksWaitingToReceive ) ) == pdFALSE )\r
- {\r
- if( xTaskRemoveFromEventList( &( pxQueue->xTasksWaitingToReceive ) ) == pdTRUE )\r
- {\r
- /* The unblocked task has a priority higher than\r
- our own so yield immediately. */\r
- portYIELD_WITHIN_API();\r
- }\r
- }\r
-\r
- taskEXIT_CRITICAL();\r
- return pdPASS;\r
- }\r
- else\r
- {\r
- if( xTicksToWait == ( portTickType ) 0 )\r
- {\r
- taskEXIT_CRITICAL();\r
- return errQUEUE_FULL;\r
- }\r
- else if( xEntryTimeSet == pdFALSE )\r
- {\r
- vTaskSetTimeOutState( &xTimeOut );\r
- xEntryTimeSet = pdTRUE;\r
- }\r
- }\r
- }\r
- taskEXIT_CRITICAL();\r
-\r
- taskENTER_CRITICAL();\r
- {\r
- if( xTaskCheckForTimeOut( &xTimeOut, &xTicksToWait ) == pdFALSE )\r
- {\r
- if( prvIsQueueFull( pxQueue ) != pdFALSE )\r
- {\r
- traceBLOCKING_ON_QUEUE_SEND( pxQueue );\r
- vTaskPlaceOnEventList( &( pxQueue->xTasksWaitingToSend ), xTicksToWait );\r
- portYIELD_WITHIN_API();\r
- }\r
- }\r
- else\r
- {\r
- taskEXIT_CRITICAL();\r
- traceQUEUE_SEND_FAILED( pxQueue );\r
- return errQUEUE_FULL;\r
- }\r
- }\r
- taskEXIT_CRITICAL();\r
- }\r
- }\r
-\r
-#endif /* configUSE_ALTERNATIVE_API */\r
-/*-----------------------------------------------------------*/\r
-\r
-#if configUSE_ALTERNATIVE_API == 1\r
-\r
- signed portBASE_TYPE xQueueAltGenericReceive( xQueueHandle pxQueue, void * const pvBuffer, portTickType xTicksToWait, portBASE_TYPE xJustPeeking )\r
- {\r
- signed portBASE_TYPE xEntryTimeSet = pdFALSE;\r
- xTimeOutType xTimeOut;\r
- signed char *pcOriginalReadPosition;\r
-\r
- configASSERT( pxQueue );\r
- configASSERT( !( ( pvBuffer == NULL ) && ( pxQueue->uxItemSize != ( unsigned portBASE_TYPE ) 0U ) ) );\r
-\r
- for( ;; )\r
- {\r
- taskENTER_CRITICAL();\r
- {\r
- if( pxQueue->uxMessagesWaiting > ( unsigned portBASE_TYPE ) 0 )\r
- {\r
- /* Remember our read position in case we are just peeking. */\r
- pcOriginalReadPosition = pxQueue->pcReadFrom;\r
-\r
- prvCopyDataFromQueue( pxQueue, pvBuffer );\r
-\r
- if( xJustPeeking == pdFALSE )\r
- {\r
- traceQUEUE_RECEIVE( pxQueue );\r
-\r
- /* We are actually removing data. */\r
- --( pxQueue->uxMessagesWaiting );\r
-\r
- #if ( configUSE_MUTEXES == 1 )\r
- {\r
- if( pxQueue->uxQueueType == queueQUEUE_IS_MUTEX )\r
- {\r
- /* Record the information required to implement\r
- priority inheritance should it become necessary. */\r
- pxQueue->pxMutexHolder = xTaskGetCurrentTaskHandle();\r
- }\r
- }\r
- #endif\r
-\r
- if( listLIST_IS_EMPTY( &( pxQueue->xTasksWaitingToSend ) ) == pdFALSE )\r
- {\r
- if( xTaskRemoveFromEventList( &( pxQueue->xTasksWaitingToSend ) ) == pdTRUE )\r
- {\r
- portYIELD_WITHIN_API();\r
- }\r
- }\r
- }\r
- else\r
- {\r
- traceQUEUE_PEEK( pxQueue );\r
-\r
- /* We are not removing the data, so reset our read\r
- pointer. */\r
- pxQueue->pcReadFrom = pcOriginalReadPosition;\r
-\r
- /* The data is being left in the queue, so see if there are\r
- any other tasks waiting for the data. */\r
- if( listLIST_IS_EMPTY( &( pxQueue->xTasksWaitingToReceive ) ) == pdFALSE )\r
- {\r
- /* Tasks that are removed from the event list will get added to\r
- the pending ready list as the scheduler is still suspended. */\r
- if( xTaskRemoveFromEventList( &( pxQueue->xTasksWaitingToReceive ) ) != pdFALSE )\r
- {\r
- /* The task waiting has a higher priority than this task. */\r
- portYIELD_WITHIN_API();\r
- }\r
- }\r
-\r
- }\r
-\r
- taskEXIT_CRITICAL();\r
- return pdPASS;\r
- }\r
- else\r
- {\r
- if( xTicksToWait == ( portTickType ) 0 )\r
- {\r
- taskEXIT_CRITICAL();\r
- traceQUEUE_RECEIVE_FAILED( pxQueue );\r
- return errQUEUE_EMPTY;\r
- }\r
- else if( xEntryTimeSet == pdFALSE )\r
- {\r
- vTaskSetTimeOutState( &xTimeOut );\r
- xEntryTimeSet = pdTRUE;\r
- }\r
- }\r
- }\r
- taskEXIT_CRITICAL();\r
-\r
- taskENTER_CRITICAL();\r
- {\r
- if( xTaskCheckForTimeOut( &xTimeOut, &xTicksToWait ) == pdFALSE )\r
- {\r
- if( prvIsQueueEmpty( pxQueue ) != pdFALSE )\r
- {\r
- traceBLOCKING_ON_QUEUE_RECEIVE( pxQueue );\r
-\r
- #if ( configUSE_MUTEXES == 1 )\r
- {\r
- if( pxQueue->uxQueueType == queueQUEUE_IS_MUTEX )\r
- {\r
- portENTER_CRITICAL();\r
- {\r
- vTaskPriorityInherit( ( void * ) pxQueue->pxMutexHolder );\r
- }\r
- portEXIT_CRITICAL();\r
- }\r
- }\r
- #endif\r
-\r
- vTaskPlaceOnEventList( &( pxQueue->xTasksWaitingToReceive ), xTicksToWait );\r
- portYIELD_WITHIN_API();\r
- }\r
- }\r
- else\r
- {\r
- taskEXIT_CRITICAL();\r
- traceQUEUE_RECEIVE_FAILED( pxQueue );\r
- return errQUEUE_EMPTY;\r
- }\r
- }\r
- taskEXIT_CRITICAL();\r
- }\r
- }\r
-\r
-\r
-#endif /* configUSE_ALTERNATIVE_API */\r
-/*-----------------------------------------------------------*/\r
-\r
-signed portBASE_TYPE xQueueGenericSendFromISR( xQueueHandle pxQueue, const void * const pvItemToQueue, signed portBASE_TYPE *pxHigherPriorityTaskWoken, portBASE_TYPE xCopyPosition )\r
-{\r
-signed portBASE_TYPE xReturn;\r
-unsigned portBASE_TYPE uxSavedInterruptStatus;\r
-\r
- configASSERT( pxQueue );\r
- configASSERT( !( ( pvItemToQueue == NULL ) && ( pxQueue->uxItemSize != ( unsigned portBASE_TYPE ) 0U ) ) );\r
-\r
- /* Similar to xQueueGenericSend, except we don't block if there is no room\r
- in the queue. Also we don't directly wake a task that was blocked on a\r
- queue read, instead we return a flag to say whether a context switch is\r
- required or not (i.e. has a task with a higher priority than us been woken\r
- by this post). */\r
- uxSavedInterruptStatus = portSET_INTERRUPT_MASK_FROM_ISR();\r
- {\r
- if( pxQueue->uxMessagesWaiting < pxQueue->uxLength )\r
- {\r
- traceQUEUE_SEND_FROM_ISR( pxQueue );\r
-\r
- prvCopyDataToQueue( pxQueue, pvItemToQueue, xCopyPosition );\r
-\r
- /* If the queue is locked we do not alter the event list. This will\r
- be done when the queue is unlocked later. */\r
- if( pxQueue->xTxLock == queueUNLOCKED )\r
- {\r
- if( listLIST_IS_EMPTY( &( pxQueue->xTasksWaitingToReceive ) ) == pdFALSE )\r
- {\r
- if( xTaskRemoveFromEventList( &( pxQueue->xTasksWaitingToReceive ) ) != pdFALSE )\r
- {\r
- /* The task waiting has a higher priority so record that a\r
- context switch is required. */\r
- if( pxHigherPriorityTaskWoken != NULL )\r
- {\r
- *pxHigherPriorityTaskWoken = pdTRUE;\r
- }\r
- }\r
- }\r
- }\r
- else\r
- {\r
- /* Increment the lock count so the task that unlocks the queue\r
- knows that data was posted while it was locked. */\r
- ++( pxQueue->xTxLock );\r
- }\r
-\r
- xReturn = pdPASS;\r
- }\r
- else\r
- {\r
- traceQUEUE_SEND_FROM_ISR_FAILED( pxQueue );\r
- xReturn = errQUEUE_FULL;\r
- }\r
- }\r
- portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus );\r
-\r
- return xReturn;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-signed portBASE_TYPE xQueueGenericReceive( xQueueHandle pxQueue, void * const pvBuffer, portTickType xTicksToWait, portBASE_TYPE xJustPeeking )\r
-{\r
-signed portBASE_TYPE xEntryTimeSet = pdFALSE;\r
-xTimeOutType xTimeOut;\r
-signed char *pcOriginalReadPosition;\r
-\r
- configASSERT( pxQueue );\r
- configASSERT( !( ( pvBuffer == NULL ) && ( pxQueue->uxItemSize != ( unsigned portBASE_TYPE ) 0U ) ) );\r
-\r
- /* This function relaxes the coding standard somewhat to allow return\r
- statements within the function itself. This is done in the interest\r
- of execution time efficiency. */\r
-\r
- for( ;; )\r
- {\r
- taskENTER_CRITICAL();\r
- {\r
- /* Is there data in the queue now? To be running we must be\r
- the highest priority task wanting to access the queue. */\r
- if( pxQueue->uxMessagesWaiting > ( unsigned portBASE_TYPE ) 0 )\r
- {\r
- /* Remember our read position in case we are just peeking. */\r
- pcOriginalReadPosition = pxQueue->pcReadFrom;\r
-\r
- prvCopyDataFromQueue( pxQueue, pvBuffer );\r
-\r
- if( xJustPeeking == pdFALSE )\r
- {\r
- traceQUEUE_RECEIVE( pxQueue );\r
-\r
- /* We are actually removing data. */\r
- --( pxQueue->uxMessagesWaiting );\r
-\r
- #if ( configUSE_MUTEXES == 1 )\r
- {\r
- if( pxQueue->uxQueueType == queueQUEUE_IS_MUTEX )\r
- {\r
- /* Record the information required to implement\r
- priority inheritance should it become necessary. */\r
- pxQueue->pxMutexHolder = xTaskGetCurrentTaskHandle();\r
- }\r
- }\r
- #endif\r
-\r
- if( listLIST_IS_EMPTY( &( pxQueue->xTasksWaitingToSend ) ) == pdFALSE )\r
- {\r
- if( xTaskRemoveFromEventList( &( pxQueue->xTasksWaitingToSend ) ) == pdTRUE )\r
- {\r
- portYIELD_WITHIN_API();\r
- }\r
- }\r
- }\r
- else\r
- {\r
- traceQUEUE_PEEK( pxQueue );\r
-\r
- /* We are not removing the data, so reset our read\r
- pointer. */\r
- pxQueue->pcReadFrom = pcOriginalReadPosition;\r
-\r
- /* The data is being left in the queue, so see if there are\r
- any other tasks waiting for the data. */\r
- if( listLIST_IS_EMPTY( &( pxQueue->xTasksWaitingToReceive ) ) == pdFALSE )\r
- {\r
- /* Tasks that are removed from the event list will get added to\r
- the pending ready list as the scheduler is still suspended. */\r
- if( xTaskRemoveFromEventList( &( pxQueue->xTasksWaitingToReceive ) ) != pdFALSE )\r
- {\r
- /* The task waiting has a higher priority than this task. */\r
- portYIELD_WITHIN_API();\r
- }\r
- }\r
- }\r
-\r
- taskEXIT_CRITICAL();\r
- return pdPASS;\r
- }\r
- else\r
- {\r
- if( xTicksToWait == ( portTickType ) 0 )\r
- {\r
- /* The queue was empty and no block time is specified (or\r
- the block time has expired) so leave now. */\r
- taskEXIT_CRITICAL();\r
- traceQUEUE_RECEIVE_FAILED( pxQueue );\r
- return errQUEUE_EMPTY;\r
- }\r
- else if( xEntryTimeSet == pdFALSE )\r
- {\r
- /* The queue was empty and a block time was specified so\r
- configure the timeout structure. */\r
- vTaskSetTimeOutState( &xTimeOut );\r
- xEntryTimeSet = pdTRUE;\r
- }\r
- }\r
- }\r
- taskEXIT_CRITICAL();\r
-\r
- /* Interrupts and other tasks can send to and receive from the queue\r
- now the critical section has been exited. */\r
-\r
- vTaskSuspendAll();\r
- prvLockQueue( pxQueue );\r
-\r
- /* Update the timeout state to see if it has expired yet. */\r
- if( xTaskCheckForTimeOut( &xTimeOut, &xTicksToWait ) == pdFALSE )\r
- {\r
- if( prvIsQueueEmpty( pxQueue ) != pdFALSE )\r
- {\r
- traceBLOCKING_ON_QUEUE_RECEIVE( pxQueue );\r
-\r
- #if ( configUSE_MUTEXES == 1 )\r
- {\r
- if( pxQueue->uxQueueType == queueQUEUE_IS_MUTEX )\r
- {\r
- portENTER_CRITICAL();\r
- {\r
- vTaskPriorityInherit( ( void * ) pxQueue->pxMutexHolder );\r
- }\r
- portEXIT_CRITICAL();\r
- }\r
- }\r
- #endif\r
-\r
- vTaskPlaceOnEventList( &( pxQueue->xTasksWaitingToReceive ), xTicksToWait );\r
- prvUnlockQueue( pxQueue );\r
- if( xTaskResumeAll() == pdFALSE )\r
- {\r
- portYIELD_WITHIN_API();\r
- }\r
- }\r
- else\r
- {\r
- /* Try again. */\r
- prvUnlockQueue( pxQueue );\r
- ( void ) xTaskResumeAll();\r
- }\r
- }\r
- else\r
- {\r
- prvUnlockQueue( pxQueue );\r
- ( void ) xTaskResumeAll();\r
- traceQUEUE_RECEIVE_FAILED( pxQueue );\r
- return errQUEUE_EMPTY;\r
- }\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-signed portBASE_TYPE xQueueReceiveFromISR( xQueueHandle pxQueue, void * const pvBuffer, signed portBASE_TYPE *pxHigherPriorityTaskWoken )\r
-{\r
-signed portBASE_TYPE xReturn;\r
-unsigned portBASE_TYPE uxSavedInterruptStatus;\r
-\r
- configASSERT( pxQueue );\r
- configASSERT( !( ( pvBuffer == NULL ) && ( pxQueue->uxItemSize != ( unsigned portBASE_TYPE ) 0U ) ) );\r
-\r
- uxSavedInterruptStatus = portSET_INTERRUPT_MASK_FROM_ISR();\r
- {\r
- /* We cannot block from an ISR, so check there is data available. */\r
- if( pxQueue->uxMessagesWaiting > ( unsigned portBASE_TYPE ) 0 )\r
- {\r
- traceQUEUE_RECEIVE_FROM_ISR( pxQueue );\r
-\r
- prvCopyDataFromQueue( pxQueue, pvBuffer );\r
- --( pxQueue->uxMessagesWaiting );\r
-\r
- /* If the queue is locked we will not modify the event list. Instead\r
- we update the lock count so the task that unlocks the queue will know\r
- that an ISR has removed data while the queue was locked. */\r
- if( pxQueue->xRxLock == queueUNLOCKED )\r
- {\r
- if( listLIST_IS_EMPTY( &( pxQueue->xTasksWaitingToSend ) ) == pdFALSE )\r
- {\r
- if( xTaskRemoveFromEventList( &( pxQueue->xTasksWaitingToSend ) ) != pdFALSE )\r
- {\r
- /* The task waiting has a higher priority than us so\r
- force a context switch. */\r
- if( pxHigherPriorityTaskWoken != NULL )\r
- {\r
- *pxHigherPriorityTaskWoken = pdTRUE;\r
- }\r
- }\r
- }\r
- }\r
- else\r
- {\r
- /* Increment the lock count so the task that unlocks the queue\r
- knows that data was removed while it was locked. */\r
- ++( pxQueue->xRxLock );\r
- }\r
-\r
- xReturn = pdPASS;\r
- }\r
- else\r
- {\r
- xReturn = pdFAIL;\r
- traceQUEUE_RECEIVE_FROM_ISR_FAILED( pxQueue );\r
- }\r
- }\r
- portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus );\r
-\r
- return xReturn;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-unsigned portBASE_TYPE uxQueueMessagesWaiting( const xQueueHandle pxQueue )\r
-{\r
-unsigned portBASE_TYPE uxReturn;\r
-\r
- configASSERT( pxQueue );\r
-\r
- taskENTER_CRITICAL();\r
- uxReturn = pxQueue->uxMessagesWaiting;\r
- taskEXIT_CRITICAL();\r
-\r
- return uxReturn;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-unsigned portBASE_TYPE uxQueueMessagesWaitingFromISR( const xQueueHandle pxQueue )\r
-{\r
-unsigned portBASE_TYPE uxReturn;\r
-\r
- configASSERT( pxQueue );\r
-\r
- uxReturn = pxQueue->uxMessagesWaiting;\r
-\r
- return uxReturn;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-void vQueueDelete( xQueueHandle pxQueue )\r
-{\r
- configASSERT( pxQueue );\r
-\r
- traceQUEUE_DELETE( pxQueue );\r
- vQueueUnregisterQueue( pxQueue );\r
- vPortFree( pxQueue->pcHead );\r
- vPortFree( pxQueue );\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( configUSE_TRACE_FACILITY == 1 )\r
-\r
- unsigned char ucQueueGetQueueNumber( xQueueHandle pxQueue )\r
- {\r
- return pxQueue->ucQueueNumber;\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( configUSE_TRACE_FACILITY == 1 )\r
-\r
- void vQueueSetQueueNumber( xQueueHandle pxQueue, unsigned char ucQueueNumber )\r
- {\r
- pxQueue->ucQueueNumber = ucQueueNumber;\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( configUSE_TRACE_FACILITY == 1 )\r
-\r
- unsigned char ucQueueGetQueueType( xQueueHandle pxQueue )\r
- {\r
- return pxQueue->ucQueueType;\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvCopyDataToQueue( xQUEUE *pxQueue, const void *pvItemToQueue, portBASE_TYPE xPosition )\r
-{\r
- if( pxQueue->uxItemSize == ( unsigned portBASE_TYPE ) 0 )\r
- {\r
- #if ( configUSE_MUTEXES == 1 )\r
- {\r
- if( pxQueue->uxQueueType == queueQUEUE_IS_MUTEX )\r
- {\r
- /* The mutex is no longer being held. */\r
- vTaskPriorityDisinherit( ( void * ) pxQueue->pxMutexHolder );\r
- pxQueue->pxMutexHolder = NULL;\r
- }\r
- }\r
- #endif\r
- }\r
- else if( xPosition == queueSEND_TO_BACK )\r
- {\r
- memcpy( ( void * ) pxQueue->pcWriteTo, pvItemToQueue, ( unsigned ) pxQueue->uxItemSize );\r
- pxQueue->pcWriteTo += pxQueue->uxItemSize;\r
- if( pxQueue->pcWriteTo >= pxQueue->pcTail )\r
- {\r
- pxQueue->pcWriteTo = pxQueue->pcHead;\r
- }\r
- }\r
- else\r
- {\r
- memcpy( ( void * ) pxQueue->pcReadFrom, pvItemToQueue, ( unsigned ) pxQueue->uxItemSize );\r
- pxQueue->pcReadFrom -= pxQueue->uxItemSize;\r
- if( pxQueue->pcReadFrom < pxQueue->pcHead )\r
- {\r
- pxQueue->pcReadFrom = ( pxQueue->pcTail - pxQueue->uxItemSize );\r
- }\r
- }\r
-\r
- ++( pxQueue->uxMessagesWaiting );\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvCopyDataFromQueue( xQUEUE * const pxQueue, const void *pvBuffer )\r
-{\r
- if( pxQueue->uxQueueType != queueQUEUE_IS_MUTEX )\r
- {\r
- pxQueue->pcReadFrom += pxQueue->uxItemSize;\r
- if( pxQueue->pcReadFrom >= pxQueue->pcTail )\r
- {\r
- pxQueue->pcReadFrom = pxQueue->pcHead;\r
- }\r
- memcpy( ( void * ) pvBuffer, ( void * ) pxQueue->pcReadFrom, ( unsigned ) pxQueue->uxItemSize );\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvUnlockQueue( xQueueHandle pxQueue )\r
-{\r
- /* THIS FUNCTION MUST BE CALLED WITH THE SCHEDULER SUSPENDED. */\r
-\r
- /* The lock counts contains the number of extra data items placed or\r
- removed from the queue while the queue was locked. When a queue is\r
- locked items can be added or removed, but the event lists cannot be\r
- updated. */\r
- taskENTER_CRITICAL();\r
- {\r
- /* See if data was added to the queue while it was locked. */\r
- while( pxQueue->xTxLock > queueLOCKED_UNMODIFIED )\r
- {\r
- /* Data was posted while the queue was locked. Are any tasks\r
- blocked waiting for data to become available? */\r
- if( listLIST_IS_EMPTY( &( pxQueue->xTasksWaitingToReceive ) ) == pdFALSE )\r
- {\r
- /* Tasks that are removed from the event list will get added to\r
- the pending ready list as the scheduler is still suspended. */\r
- if( xTaskRemoveFromEventList( &( pxQueue->xTasksWaitingToReceive ) ) != pdFALSE )\r
- {\r
- /* The task waiting has a higher priority so record that a\r
- context switch is required. */\r
- vTaskMissedYield();\r
- }\r
-\r
- --( pxQueue->xTxLock );\r
- }\r
- else\r
- {\r
- break;\r
- }\r
- }\r
-\r
- pxQueue->xTxLock = queueUNLOCKED;\r
- }\r
- taskEXIT_CRITICAL();\r
-\r
- /* Do the same for the Rx lock. */\r
- taskENTER_CRITICAL();\r
- {\r
- while( pxQueue->xRxLock > queueLOCKED_UNMODIFIED )\r
- {\r
- if( listLIST_IS_EMPTY( &( pxQueue->xTasksWaitingToSend ) ) == pdFALSE )\r
- {\r
- if( xTaskRemoveFromEventList( &( pxQueue->xTasksWaitingToSend ) ) != pdFALSE )\r
- {\r
- vTaskMissedYield();\r
- }\r
-\r
- --( pxQueue->xRxLock );\r
- }\r
- else\r
- {\r
- break;\r
- }\r
- }\r
-\r
- pxQueue->xRxLock = queueUNLOCKED;\r
- }\r
- taskEXIT_CRITICAL();\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static signed portBASE_TYPE prvIsQueueEmpty( const xQueueHandle pxQueue )\r
-{\r
-signed portBASE_TYPE xReturn;\r
-\r
- taskENTER_CRITICAL();\r
- xReturn = ( pxQueue->uxMessagesWaiting == ( unsigned portBASE_TYPE ) 0 );\r
- taskEXIT_CRITICAL();\r
-\r
- return xReturn;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-signed portBASE_TYPE xQueueIsQueueEmptyFromISR( const xQueueHandle pxQueue )\r
-{\r
-signed portBASE_TYPE xReturn;\r
-\r
- configASSERT( pxQueue );\r
- xReturn = ( pxQueue->uxMessagesWaiting == ( unsigned portBASE_TYPE ) 0 );\r
-\r
- return xReturn;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static signed portBASE_TYPE prvIsQueueFull( const xQueueHandle pxQueue )\r
-{\r
-signed portBASE_TYPE xReturn;\r
-\r
- taskENTER_CRITICAL();\r
- xReturn = ( pxQueue->uxMessagesWaiting == pxQueue->uxLength );\r
- taskEXIT_CRITICAL();\r
-\r
- return xReturn;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-signed portBASE_TYPE xQueueIsQueueFullFromISR( const xQueueHandle pxQueue )\r
-{\r
-signed portBASE_TYPE xReturn;\r
-\r
- configASSERT( pxQueue );\r
- xReturn = ( pxQueue->uxMessagesWaiting == pxQueue->uxLength );\r
-\r
- return xReturn;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-#if configUSE_CO_ROUTINES == 1\r
-signed portBASE_TYPE xQueueCRSend( xQueueHandle pxQueue, const void *pvItemToQueue, portTickType xTicksToWait )\r
-{\r
-signed portBASE_TYPE xReturn;\r
-\r
- /* If the queue is already full we may have to block. A critical section\r
- is required to prevent an interrupt removing something from the queue\r
- between the check to see if the queue is full and blocking on the queue. */\r
- portDISABLE_INTERRUPTS();\r
- {\r
- if( prvIsQueueFull( pxQueue ) != pdFALSE )\r
- {\r
- /* The queue is full - do we want to block or just leave without\r
- posting? */\r
- if( xTicksToWait > ( portTickType ) 0 )\r
- {\r
- /* As this is called from a coroutine we cannot block directly, but\r
- return indicating that we need to block. */\r
- vCoRoutineAddToDelayedList( xTicksToWait, &( pxQueue->xTasksWaitingToSend ) );\r
- portENABLE_INTERRUPTS();\r
- return errQUEUE_BLOCKED;\r
- }\r
- else\r
- {\r
- portENABLE_INTERRUPTS();\r
- return errQUEUE_FULL;\r
- }\r
- }\r
- }\r
- portENABLE_INTERRUPTS();\r
-\r
- portNOP();\r
-\r
- portDISABLE_INTERRUPTS();\r
- {\r
- if( pxQueue->uxMessagesWaiting < pxQueue->uxLength )\r
- {\r
- /* There is room in the queue, copy the data into the queue. */\r
- prvCopyDataToQueue( pxQueue, pvItemToQueue, queueSEND_TO_BACK );\r
- xReturn = pdPASS;\r
-\r
- /* Were any co-routines waiting for data to become available? */\r
- if( listLIST_IS_EMPTY( &( pxQueue->xTasksWaitingToReceive ) ) == pdFALSE )\r
- {\r
- /* In this instance the co-routine could be placed directly\r
- into the ready list as we are within a critical section.\r
- Instead the same pending ready list mechanism is used as if\r
- the event were caused from within an interrupt. */\r
- if( xCoRoutineRemoveFromEventList( &( pxQueue->xTasksWaitingToReceive ) ) != pdFALSE )\r
- {\r
- /* The co-routine waiting has a higher priority so record\r
- that a yield might be appropriate. */\r
- xReturn = errQUEUE_YIELD;\r
- }\r
- }\r
- }\r
- else\r
- {\r
- xReturn = errQUEUE_FULL;\r
- }\r
- }\r
- portENABLE_INTERRUPTS();\r
-\r
- return xReturn;\r
-}\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if configUSE_CO_ROUTINES == 1\r
-signed portBASE_TYPE xQueueCRReceive( xQueueHandle pxQueue, void *pvBuffer, portTickType xTicksToWait )\r
-{\r
-signed portBASE_TYPE xReturn;\r
-\r
- /* If the queue is already empty we may have to block. A critical section\r
- is required to prevent an interrupt adding something to the queue\r
- between the check to see if the queue is empty and blocking on the queue. */\r
- portDISABLE_INTERRUPTS();\r
- {\r
- if( pxQueue->uxMessagesWaiting == ( unsigned portBASE_TYPE ) 0 )\r
- {\r
- /* There are no messages in the queue, do we want to block or just\r
- leave with nothing? */\r
- if( xTicksToWait > ( portTickType ) 0 )\r
- {\r
- /* As this is a co-routine we cannot block directly, but return\r
- indicating that we need to block. */\r
- vCoRoutineAddToDelayedList( xTicksToWait, &( pxQueue->xTasksWaitingToReceive ) );\r
- portENABLE_INTERRUPTS();\r
- return errQUEUE_BLOCKED;\r
- }\r
- else\r
- {\r
- portENABLE_INTERRUPTS();\r
- return errQUEUE_FULL;\r
- }\r
- }\r
- }\r
- portENABLE_INTERRUPTS();\r
-\r
- portNOP();\r
-\r
- portDISABLE_INTERRUPTS();\r
- {\r
- if( pxQueue->uxMessagesWaiting > ( unsigned portBASE_TYPE ) 0 )\r
- {\r
- /* Data is available from the queue. */\r
- pxQueue->pcReadFrom += pxQueue->uxItemSize;\r
- if( pxQueue->pcReadFrom >= pxQueue->pcTail )\r
- {\r
- pxQueue->pcReadFrom = pxQueue->pcHead;\r
- }\r
- --( pxQueue->uxMessagesWaiting );\r
- memcpy( ( void * ) pvBuffer, ( void * ) pxQueue->pcReadFrom, ( unsigned ) pxQueue->uxItemSize );\r
-\r
- xReturn = pdPASS;\r
-\r
- /* Were any co-routines waiting for space to become available? */\r
- if( listLIST_IS_EMPTY( &( pxQueue->xTasksWaitingToSend ) ) == pdFALSE )\r
- {\r
- /* In this instance the co-routine could be placed directly\r
- into the ready list as we are within a critical section.\r
- Instead the same pending ready list mechanism is used as if\r
- the event were caused from within an interrupt. */\r
- if( xCoRoutineRemoveFromEventList( &( pxQueue->xTasksWaitingToSend ) ) != pdFALSE )\r
- {\r
- xReturn = errQUEUE_YIELD;\r
- }\r
- }\r
- }\r
- else\r
- {\r
- xReturn = pdFAIL;\r
- }\r
- }\r
- portENABLE_INTERRUPTS();\r
-\r
- return xReturn;\r
-}\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-\r
-\r
-#if configUSE_CO_ROUTINES == 1\r
-signed portBASE_TYPE xQueueCRSendFromISR( xQueueHandle pxQueue, const void *pvItemToQueue, signed portBASE_TYPE xCoRoutinePreviouslyWoken )\r
-{\r
- /* Cannot block within an ISR so if there is no space on the queue then\r
- exit without doing anything. */\r
- if( pxQueue->uxMessagesWaiting < pxQueue->uxLength )\r
- {\r
- prvCopyDataToQueue( pxQueue, pvItemToQueue, queueSEND_TO_BACK );\r
-\r
- /* We only want to wake one co-routine per ISR, so check that a\r
- co-routine has not already been woken. */\r
- if( xCoRoutinePreviouslyWoken == pdFALSE )\r
- {\r
- if( listLIST_IS_EMPTY( &( pxQueue->xTasksWaitingToReceive ) ) == pdFALSE )\r
- {\r
- if( xCoRoutineRemoveFromEventList( &( pxQueue->xTasksWaitingToReceive ) ) != pdFALSE )\r
- {\r
- return pdTRUE;\r
- }\r
- }\r
- }\r
- }\r
-\r
- return xCoRoutinePreviouslyWoken;\r
-}\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if configUSE_CO_ROUTINES == 1\r
-signed portBASE_TYPE xQueueCRReceiveFromISR( xQueueHandle pxQueue, void *pvBuffer, signed portBASE_TYPE *pxCoRoutineWoken )\r
-{\r
-signed portBASE_TYPE xReturn;\r
-\r
- /* We cannot block from an ISR, so check there is data available. If\r
- not then just leave without doing anything. */\r
- if( pxQueue->uxMessagesWaiting > ( unsigned portBASE_TYPE ) 0 )\r
- {\r
- /* Copy the data from the queue. */\r
- pxQueue->pcReadFrom += pxQueue->uxItemSize;\r
- if( pxQueue->pcReadFrom >= pxQueue->pcTail )\r
- {\r
- pxQueue->pcReadFrom = pxQueue->pcHead;\r
- }\r
- --( pxQueue->uxMessagesWaiting );\r
- memcpy( ( void * ) pvBuffer, ( void * ) pxQueue->pcReadFrom, ( unsigned ) pxQueue->uxItemSize );\r
-\r
- if( ( *pxCoRoutineWoken ) == pdFALSE )\r
- {\r
- if( listLIST_IS_EMPTY( &( pxQueue->xTasksWaitingToSend ) ) == pdFALSE )\r
- {\r
- if( xCoRoutineRemoveFromEventList( &( pxQueue->xTasksWaitingToSend ) ) != pdFALSE )\r
- {\r
- *pxCoRoutineWoken = pdTRUE;\r
- }\r
- }\r
- }\r
-\r
- xReturn = pdPASS;\r
- }\r
- else\r
- {\r
- xReturn = pdFAIL;\r
- }\r
-\r
- return xReturn;\r
-}\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if configQUEUE_REGISTRY_SIZE > 0\r
-\r
- void vQueueAddToRegistry( xQueueHandle xQueue, signed char *pcQueueName )\r
- {\r
- unsigned portBASE_TYPE ux;\r
-\r
- /* See if there is an empty space in the registry. A NULL name denotes\r
- a free slot. */\r
- for( ux = ( unsigned portBASE_TYPE ) 0U; ux < ( unsigned portBASE_TYPE ) configQUEUE_REGISTRY_SIZE; ux++ )\r
- {\r
- if( xQueueRegistry[ ux ].pcQueueName == NULL )\r
- {\r
- /* Store the information on this queue. */\r
- xQueueRegistry[ ux ].pcQueueName = pcQueueName;\r
- xQueueRegistry[ ux ].xHandle = xQueue;\r
- break;\r
- }\r
- }\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if configQUEUE_REGISTRY_SIZE > 0\r
-\r
- static void vQueueUnregisterQueue( xQueueHandle xQueue )\r
- {\r
- unsigned portBASE_TYPE ux;\r
-\r
- /* See if the handle of the queue being unregistered in actually in the\r
- registry. */\r
- for( ux = ( unsigned portBASE_TYPE ) 0U; ux < ( unsigned portBASE_TYPE ) configQUEUE_REGISTRY_SIZE; ux++ )\r
- {\r
- if( xQueueRegistry[ ux ].xHandle == xQueue )\r
- {\r
- /* Set the name to NULL to show that this slot if free again. */\r
- xQueueRegistry[ ux ].pcQueueName = NULL;\r
- break;\r
- }\r
- }\r
-\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if configUSE_TIMERS == 1\r
-\r
- void vQueueWaitForMessageRestricted( xQueueHandle pxQueue, portTickType xTicksToWait )\r
- {\r
- /* This function should not be called by application code hence the\r
- 'Restricted' in its name. It is not part of the public API. It is\r
- designed for use by kernel code, and has special calling requirements.\r
- It can result in vListInsert() being called on a list that can only\r
- possibly ever have one item in it, so the list will be fast, but even\r
- so it should be called with the scheduler locked and not from a critical\r
- section. */\r
-\r
- /* Only do anything if there are no messages in the queue. This function\r
- will not actually cause the task to block, just place it on a blocked\r
- list. It will not block until the scheduler is unlocked - at which\r
- time a yield will be performed. If an item is added to the queue while\r
- the queue is locked, and the calling task blocks on the queue, then the\r
- calling task will be immediately unblocked when the queue is unlocked. */\r
- prvLockQueue( pxQueue );\r
- if( pxQueue->uxMessagesWaiting == ( unsigned portBASE_TYPE ) 0U )\r
- {\r
- /* There is nothing in the queue, block for the specified period. */\r
- vTaskPlaceOnEventListRestricted( &( pxQueue->xTasksWaitingToReceive ), xTicksToWait );\r
- }\r
- prvUnlockQueue( pxQueue );\r
- }\r
-\r
-#endif\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
-\r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-\r
-#ifndef QUEUE_H\r
-#define QUEUE_H\r
-\r
-#ifndef INC_FREERTOS_H\r
- #error "include FreeRTOS.h" must appear in source files before "include queue.h"\r
-#endif\r
-\r
-#ifdef __cplusplus\r
-extern "C" {\r
-#endif\r
-\r
-\r
-#include "mpu_wrappers.h"\r
-\r
-/**\r
- * Type by which queues are referenced. For example, a call to xQueueCreate\r
- * returns (via a pointer parameter) an xQueueHandle variable that can then\r
- * be used as a parameter to xQueueSend(), xQueueReceive(), etc.\r
- */\r
-typedef void * xQueueHandle;\r
-\r
-\r
-/* For internal use only. */\r
-#define queueSEND_TO_BACK ( 0 )\r
-#define queueSEND_TO_FRONT ( 1 )\r
-\r
-/* For internal use only. These definitions *must* match those in queue.c. */\r
-#define queueQUEUE_TYPE_BASE ( 0U )\r
-#define queueQUEUE_TYPE_MUTEX ( 1U )\r
-#define queueQUEUE_TYPE_COUNTING_SEMAPHORE ( 2U )\r
-#define queueQUEUE_TYPE_BINARY_SEMAPHORE ( 3U )\r
-#define queueQUEUE_TYPE_RECURSIVE_MUTEX ( 4U )\r
-\r
-/**\r
- * queue. h\r
- * <pre>\r
- xQueueHandle xQueueCreate(\r
- unsigned portBASE_TYPE uxQueueLength,\r
- unsigned portBASE_TYPE uxItemSize\r
- );\r
- * </pre>\r
- *\r
- * Creates a new queue instance. This allocates the storage required by the\r
- * new queue and returns a handle for the queue.\r
- *\r
- * @param uxQueueLength The maximum number of items that the queue can contain.\r
- *\r
- * @param uxItemSize The number of bytes each item in the queue will require.\r
- * Items are queued by copy, not by reference, so this is the number of bytes\r
- * that will be copied for each posted item. Each item on the queue must be\r
- * the same size.\r
- *\r
- * @return If the queue is successfully create then a handle to the newly\r
- * created queue is returned. If the queue cannot be created then 0 is\r
- * returned.\r
- *\r
- * Example usage:\r
- <pre>\r
- struct AMessage\r
- {\r
- char ucMessageID;\r
- char ucData[ 20 ];\r
- };\r
-\r
- void vATask( void *pvParameters )\r
- {\r
- xQueueHandle xQueue1, xQueue2;\r
-\r
- // Create a queue capable of containing 10 unsigned long values.\r
- xQueue1 = xQueueCreate( 10, sizeof( unsigned long ) );\r
- if( xQueue1 == 0 )\r
- {\r
- // Queue was not created and must not be used.\r
- }\r
-\r
- // Create a queue capable of containing 10 pointers to AMessage structures.\r
- // These should be passed by pointer as they contain a lot of data.\r
- xQueue2 = xQueueCreate( 10, sizeof( struct AMessage * ) );\r
- if( xQueue2 == 0 )\r
- {\r
- // Queue was not created and must not be used.\r
- }\r
-\r
- // ... Rest of task code.\r
- }\r
- </pre>\r
- * \defgroup xQueueCreate xQueueCreate\r
- * \ingroup QueueManagement\r
- */\r
-#define xQueueCreate( uxQueueLength, uxItemSize ) xQueueGenericCreate( uxQueueLength, uxItemSize, queueQUEUE_TYPE_BASE )\r
-\r
-/**\r
- * queue. h\r
- * <pre>\r
- portBASE_TYPE xQueueSendToToFront(\r
- xQueueHandle xQueue,\r
- const void * pvItemToQueue,\r
- portTickType xTicksToWait\r
- );\r
- * </pre>\r
- *\r
- * This is a macro that calls xQueueGenericSend().\r
- *\r
- * Post an item to the front of a queue. The item is queued by copy, not by\r
- * reference. This function must not be called from an interrupt service\r
- * routine. See xQueueSendFromISR () for an alternative which may be used\r
- * in an ISR.\r
- *\r
- * @param xQueue The handle to the queue on which the item is to be posted.\r
- *\r
- * @param pvItemToQueue A pointer to the item that is to be placed on the\r
- * queue. The size of the items the queue will hold was defined when the\r
- * queue was created, so this many bytes will be copied from pvItemToQueue\r
- * into the queue storage area.\r
- *\r
- * @param xTicksToWait The maximum amount of time the task should block\r
- * waiting for space to become available on the queue, should it already\r
- * be full. The call will return immediately if this is set to 0 and the\r
- * queue is full. The time is defined in tick periods so the constant\r
- * portTICK_RATE_MS should be used to convert to real time if this is required.\r
- *\r
- * @return pdTRUE if the item was successfully posted, otherwise errQUEUE_FULL.\r
- *\r
- * Example usage:\r
- <pre>\r
- struct AMessage\r
- {\r
- char ucMessageID;\r
- char ucData[ 20 ];\r
- } xMessage;\r
-\r
- unsigned long ulVar = 10UL;\r
-\r
- void vATask( void *pvParameters )\r
- {\r
- xQueueHandle xQueue1, xQueue2;\r
- struct AMessage *pxMessage;\r
-\r
- // Create a queue capable of containing 10 unsigned long values.\r
- xQueue1 = xQueueCreate( 10, sizeof( unsigned long ) );\r
-\r
- // Create a queue capable of containing 10 pointers to AMessage structures.\r
- // These should be passed by pointer as they contain a lot of data.\r
- xQueue2 = xQueueCreate( 10, sizeof( struct AMessage * ) );\r
-\r
- // ...\r
-\r
- if( xQueue1 != 0 )\r
- {\r
- // Send an unsigned long. Wait for 10 ticks for space to become\r
- // available if necessary.\r
- if( xQueueSendToFront( xQueue1, ( void * ) &ulVar, ( portTickType ) 10 ) != pdPASS )\r
- {\r
- // Failed to post the message, even after 10 ticks.\r
- }\r
- }\r
-\r
- if( xQueue2 != 0 )\r
- {\r
- // Send a pointer to a struct AMessage object. Don't block if the\r
- // queue is already full.\r
- pxMessage = & xMessage;\r
- xQueueSendToFront( xQueue2, ( void * ) &pxMessage, ( portTickType ) 0 );\r
- }\r
-\r
- // ... Rest of task code.\r
- }\r
- </pre>\r
- * \defgroup xQueueSend xQueueSend\r
- * \ingroup QueueManagement\r
- */\r
-#define xQueueSendToFront( xQueue, pvItemToQueue, xTicksToWait ) xQueueGenericSend( ( xQueue ), ( pvItemToQueue ), ( xTicksToWait ), queueSEND_TO_FRONT )\r
-\r
-/**\r
- * queue. h\r
- * <pre>\r
- portBASE_TYPE xQueueSendToBack(\r
- xQueueHandle xQueue,\r
- const void * pvItemToQueue,\r
- portTickType xTicksToWait\r
- );\r
- * </pre>\r
- *\r
- * This is a macro that calls xQueueGenericSend().\r
- *\r
- * Post an item to the back of a queue. The item is queued by copy, not by\r
- * reference. This function must not be called from an interrupt service\r
- * routine. See xQueueSendFromISR () for an alternative which may be used\r
- * in an ISR.\r
- *\r
- * @param xQueue The handle to the queue on which the item is to be posted.\r
- *\r
- * @param pvItemToQueue A pointer to the item that is to be placed on the\r
- * queue. The size of the items the queue will hold was defined when the\r
- * queue was created, so this many bytes will be copied from pvItemToQueue\r
- * into the queue storage area.\r
- *\r
- * @param xTicksToWait The maximum amount of time the task should block\r
- * waiting for space to become available on the queue, should it already\r
- * be full. The call will return immediately if this is set to 0 and the queue\r
- * is full. The time is defined in tick periods so the constant\r
- * portTICK_RATE_MS should be used to convert to real time if this is required.\r
- *\r
- * @return pdTRUE if the item was successfully posted, otherwise errQUEUE_FULL.\r
- *\r
- * Example usage:\r
- <pre>\r
- struct AMessage\r
- {\r
- char ucMessageID;\r
- char ucData[ 20 ];\r
- } xMessage;\r
-\r
- unsigned long ulVar = 10UL;\r
-\r
- void vATask( void *pvParameters )\r
- {\r
- xQueueHandle xQueue1, xQueue2;\r
- struct AMessage *pxMessage;\r
-\r
- // Create a queue capable of containing 10 unsigned long values.\r
- xQueue1 = xQueueCreate( 10, sizeof( unsigned long ) );\r
-\r
- // Create a queue capable of containing 10 pointers to AMessage structures.\r
- // These should be passed by pointer as they contain a lot of data.\r
- xQueue2 = xQueueCreate( 10, sizeof( struct AMessage * ) );\r
-\r
- // ...\r
-\r
- if( xQueue1 != 0 )\r
- {\r
- // Send an unsigned long. Wait for 10 ticks for space to become\r
- // available if necessary.\r
- if( xQueueSendToBack( xQueue1, ( void * ) &ulVar, ( portTickType ) 10 ) != pdPASS )\r
- {\r
- // Failed to post the message, even after 10 ticks.\r
- }\r
- }\r
-\r
- if( xQueue2 != 0 )\r
- {\r
- // Send a pointer to a struct AMessage object. Don't block if the\r
- // queue is already full.\r
- pxMessage = & xMessage;\r
- xQueueSendToBack( xQueue2, ( void * ) &pxMessage, ( portTickType ) 0 );\r
- }\r
-\r
- // ... Rest of task code.\r
- }\r
- </pre>\r
- * \defgroup xQueueSend xQueueSend\r
- * \ingroup QueueManagement\r
- */\r
-#define xQueueSendToBack( xQueue, pvItemToQueue, xTicksToWait ) xQueueGenericSend( ( xQueue ), ( pvItemToQueue ), ( xTicksToWait ), queueSEND_TO_BACK )\r
-\r
-/**\r
- * queue. h\r
- * <pre>\r
- portBASE_TYPE xQueueSend(\r
- xQueueHandle xQueue,\r
- const void * pvItemToQueue,\r
- portTickType xTicksToWait\r
- );\r
- * </pre>\r
- *\r
- * This is a macro that calls xQueueGenericSend(). It is included for\r
- * backward compatibility with versions of FreeRTOS.org that did not\r
- * include the xQueueSendToFront() and xQueueSendToBack() macros. It is\r
- * equivalent to xQueueSendToBack().\r
- *\r
- * Post an item on a queue. The item is queued by copy, not by reference.\r
- * This function must not be called from an interrupt service routine.\r
- * See xQueueSendFromISR () for an alternative which may be used in an ISR.\r
- *\r
- * @param xQueue The handle to the queue on which the item is to be posted.\r
- *\r
- * @param pvItemToQueue A pointer to the item that is to be placed on the\r
- * queue. The size of the items the queue will hold was defined when the\r
- * queue was created, so this many bytes will be copied from pvItemToQueue\r
- * into the queue storage area.\r
- *\r
- * @param xTicksToWait The maximum amount of time the task should block\r
- * waiting for space to become available on the queue, should it already\r
- * be full. The call will return immediately if this is set to 0 and the\r
- * queue is full. The time is defined in tick periods so the constant\r
- * portTICK_RATE_MS should be used to convert to real time if this is required.\r
- *\r
- * @return pdTRUE if the item was successfully posted, otherwise errQUEUE_FULL.\r
- *\r
- * Example usage:\r
- <pre>\r
- struct AMessage\r
- {\r
- char ucMessageID;\r
- char ucData[ 20 ];\r
- } xMessage;\r
-\r
- unsigned long ulVar = 10UL;\r
-\r
- void vATask( void *pvParameters )\r
- {\r
- xQueueHandle xQueue1, xQueue2;\r
- struct AMessage *pxMessage;\r
-\r
- // Create a queue capable of containing 10 unsigned long values.\r
- xQueue1 = xQueueCreate( 10, sizeof( unsigned long ) );\r
-\r
- // Create a queue capable of containing 10 pointers to AMessage structures.\r
- // These should be passed by pointer as they contain a lot of data.\r
- xQueue2 = xQueueCreate( 10, sizeof( struct AMessage * ) );\r
-\r
- // ...\r
-\r
- if( xQueue1 != 0 )\r
- {\r
- // Send an unsigned long. Wait for 10 ticks for space to become\r
- // available if necessary.\r
- if( xQueueSend( xQueue1, ( void * ) &ulVar, ( portTickType ) 10 ) != pdPASS )\r
- {\r
- // Failed to post the message, even after 10 ticks.\r
- }\r
- }\r
-\r
- if( xQueue2 != 0 )\r
- {\r
- // Send a pointer to a struct AMessage object. Don't block if the\r
- // queue is already full.\r
- pxMessage = & xMessage;\r
- xQueueSend( xQueue2, ( void * ) &pxMessage, ( portTickType ) 0 );\r
- }\r
-\r
- // ... Rest of task code.\r
- }\r
- </pre>\r
- * \defgroup xQueueSend xQueueSend\r
- * \ingroup QueueManagement\r
- */\r
-#define xQueueSend( xQueue, pvItemToQueue, xTicksToWait ) xQueueGenericSend( ( xQueue ), ( pvItemToQueue ), ( xTicksToWait ), queueSEND_TO_BACK )\r
-\r
-\r
-/**\r
- * queue. h\r
- * <pre>\r
- portBASE_TYPE xQueueGenericSend(\r
- xQueueHandle xQueue,\r
- const void * pvItemToQueue,\r
- portTickType xTicksToWait\r
- portBASE_TYPE xCopyPosition\r
- );\r
- * </pre>\r
- *\r
- * It is preferred that the macros xQueueSend(), xQueueSendToFront() and\r
- * xQueueSendToBack() are used in place of calling this function directly.\r
- *\r
- * Post an item on a queue. The item is queued by copy, not by reference.\r
- * This function must not be called from an interrupt service routine.\r
- * See xQueueSendFromISR () for an alternative which may be used in an ISR.\r
- *\r
- * @param xQueue The handle to the queue on which the item is to be posted.\r
- *\r
- * @param pvItemToQueue A pointer to the item that is to be placed on the\r
- * queue. The size of the items the queue will hold was defined when the\r
- * queue was created, so this many bytes will be copied from pvItemToQueue\r
- * into the queue storage area.\r
- *\r
- * @param xTicksToWait The maximum amount of time the task should block\r
- * waiting for space to become available on the queue, should it already\r
- * be full. The call will return immediately if this is set to 0 and the\r
- * queue is full. The time is defined in tick periods so the constant\r
- * portTICK_RATE_MS should be used to convert to real time if this is required.\r
- *\r
- * @param xCopyPosition Can take the value queueSEND_TO_BACK to place the\r
- * item at the back of the queue, or queueSEND_TO_FRONT to place the item\r
- * at the front of the queue (for high priority messages).\r
- *\r
- * @return pdTRUE if the item was successfully posted, otherwise errQUEUE_FULL.\r
- *\r
- * Example usage:\r
- <pre>\r
- struct AMessage\r
- {\r
- char ucMessageID;\r
- char ucData[ 20 ];\r
- } xMessage;\r
-\r
- unsigned long ulVar = 10UL;\r
-\r
- void vATask( void *pvParameters )\r
- {\r
- xQueueHandle xQueue1, xQueue2;\r
- struct AMessage *pxMessage;\r
-\r
- // Create a queue capable of containing 10 unsigned long values.\r
- xQueue1 = xQueueCreate( 10, sizeof( unsigned long ) );\r
-\r
- // Create a queue capable of containing 10 pointers to AMessage structures.\r
- // These should be passed by pointer as they contain a lot of data.\r
- xQueue2 = xQueueCreate( 10, sizeof( struct AMessage * ) );\r
-\r
- // ...\r
-\r
- if( xQueue1 != 0 )\r
- {\r
- // Send an unsigned long. Wait for 10 ticks for space to become\r
- // available if necessary.\r
- if( xQueueGenericSend( xQueue1, ( void * ) &ulVar, ( portTickType ) 10, queueSEND_TO_BACK ) != pdPASS )\r
- {\r
- // Failed to post the message, even after 10 ticks.\r
- }\r
- }\r
-\r
- if( xQueue2 != 0 )\r
- {\r
- // Send a pointer to a struct AMessage object. Don't block if the\r
- // queue is already full.\r
- pxMessage = & xMessage;\r
- xQueueGenericSend( xQueue2, ( void * ) &pxMessage, ( portTickType ) 0, queueSEND_TO_BACK );\r
- }\r
-\r
- // ... Rest of task code.\r
- }\r
- </pre>\r
- * \defgroup xQueueSend xQueueSend\r
- * \ingroup QueueManagement\r
- */\r
-signed portBASE_TYPE xQueueGenericSend( xQueueHandle pxQueue, const void * const pvItemToQueue, portTickType xTicksToWait, portBASE_TYPE xCopyPosition );\r
-\r
-/**\r
- * queue. h\r
- * <pre>\r
- portBASE_TYPE xQueuePeek(\r
- xQueueHandle xQueue,\r
- void *pvBuffer,\r
- portTickType xTicksToWait\r
- );</pre>\r
- *\r
- * This is a macro that calls the xQueueGenericReceive() function.\r
- *\r
- * Receive an item from a queue without removing the item from the queue.\r
- * The item is received by copy so a buffer of adequate size must be\r
- * provided. The number of bytes copied into the buffer was defined when\r
- * the queue was created.\r
- *\r
- * Successfully received items remain on the queue so will be returned again\r
- * by the next call, or a call to xQueueReceive().\r
- *\r
- * This macro must not be used in an interrupt service routine.\r
- *\r
- * @param pxQueue The handle to the queue from which the item is to be\r
- * received.\r
- *\r
- * @param pvBuffer Pointer to the buffer into which the received item will\r
- * be copied.\r
- *\r
- * @param xTicksToWait The maximum amount of time the task should block\r
- * waiting for an item to receive should the queue be empty at the time\r
- * of the call. The time is defined in tick periods so the constant\r
- * portTICK_RATE_MS should be used to convert to real time if this is required.\r
- * xQueuePeek() will return immediately if xTicksToWait is 0 and the queue\r
- * is empty.\r
- *\r
- * @return pdTRUE if an item was successfully received from the queue,\r
- * otherwise pdFALSE.\r
- *\r
- * Example usage:\r
- <pre>\r
- struct AMessage\r
- {\r
- char ucMessageID;\r
- char ucData[ 20 ];\r
- } xMessage;\r
-\r
- xQueueHandle xQueue;\r
-\r
- // Task to create a queue and post a value.\r
- void vATask( void *pvParameters )\r
- {\r
- struct AMessage *pxMessage;\r
-\r
- // Create a queue capable of containing 10 pointers to AMessage structures.\r
- // These should be passed by pointer as they contain a lot of data.\r
- xQueue = xQueueCreate( 10, sizeof( struct AMessage * ) );\r
- if( xQueue == 0 )\r
- {\r
- // Failed to create the queue.\r
- }\r
-\r
- // ...\r
-\r
- // Send a pointer to a struct AMessage object. Don't block if the\r
- // queue is already full.\r
- pxMessage = & xMessage;\r
- xQueueSend( xQueue, ( void * ) &pxMessage, ( portTickType ) 0 );\r
-\r
- // ... Rest of task code.\r
- }\r
-\r
- // Task to peek the data from the queue.\r
- void vADifferentTask( void *pvParameters )\r
- {\r
- struct AMessage *pxRxedMessage;\r
-\r
- if( xQueue != 0 )\r
- {\r
- // Peek a message on the created queue. Block for 10 ticks if a\r
- // message is not immediately available.\r
- if( xQueuePeek( xQueue, &( pxRxedMessage ), ( portTickType ) 10 ) )\r
- {\r
- // pcRxedMessage now points to the struct AMessage variable posted\r
- // by vATask, but the item still remains on the queue.\r
- }\r
- }\r
-\r
- // ... Rest of task code.\r
- }\r
- </pre>\r
- * \defgroup xQueueReceive xQueueReceive\r
- * \ingroup QueueManagement\r
- */\r
-#define xQueuePeek( xQueue, pvBuffer, xTicksToWait ) xQueueGenericReceive( ( xQueue ), ( pvBuffer ), ( xTicksToWait ), pdTRUE )\r
-\r
-/**\r
- * queue. h\r
- * <pre>\r
- portBASE_TYPE xQueueReceive(\r
- xQueueHandle xQueue,\r
- void *pvBuffer,\r
- portTickType xTicksToWait\r
- );</pre>\r
- *\r
- * This is a macro that calls the xQueueGenericReceive() function.\r
- *\r
- * Receive an item from a queue. The item is received by copy so a buffer of\r
- * adequate size must be provided. The number of bytes copied into the buffer\r
- * was defined when the queue was created.\r
- *\r
- * Successfully received items are removed from the queue.\r
- *\r
- * This function must not be used in an interrupt service routine. See\r
- * xQueueReceiveFromISR for an alternative that can.\r
- *\r
- * @param pxQueue The handle to the queue from which the item is to be\r
- * received.\r
- *\r
- * @param pvBuffer Pointer to the buffer into which the received item will\r
- * be copied.\r
- *\r
- * @param xTicksToWait The maximum amount of time the task should block\r
- * waiting for an item to receive should the queue be empty at the time\r
- * of the call. xQueueReceive() will return immediately if xTicksToWait\r
- * is zero and the queue is empty. The time is defined in tick periods so the\r
- * constant portTICK_RATE_MS should be used to convert to real time if this is\r
- * required.\r
- *\r
- * @return pdTRUE if an item was successfully received from the queue,\r
- * otherwise pdFALSE.\r
- *\r
- * Example usage:\r
- <pre>\r
- struct AMessage\r
- {\r
- char ucMessageID;\r
- char ucData[ 20 ];\r
- } xMessage;\r
-\r
- xQueueHandle xQueue;\r
-\r
- // Task to create a queue and post a value.\r
- void vATask( void *pvParameters )\r
- {\r
- struct AMessage *pxMessage;\r
-\r
- // Create a queue capable of containing 10 pointers to AMessage structures.\r
- // These should be passed by pointer as they contain a lot of data.\r
- xQueue = xQueueCreate( 10, sizeof( struct AMessage * ) );\r
- if( xQueue == 0 )\r
- {\r
- // Failed to create the queue.\r
- }\r
-\r
- // ...\r
-\r
- // Send a pointer to a struct AMessage object. Don't block if the\r
- // queue is already full.\r
- pxMessage = & xMessage;\r
- xQueueSend( xQueue, ( void * ) &pxMessage, ( portTickType ) 0 );\r
-\r
- // ... Rest of task code.\r
- }\r
-\r
- // Task to receive from the queue.\r
- void vADifferentTask( void *pvParameters )\r
- {\r
- struct AMessage *pxRxedMessage;\r
-\r
- if( xQueue != 0 )\r
- {\r
- // Receive a message on the created queue. Block for 10 ticks if a\r
- // message is not immediately available.\r
- if( xQueueReceive( xQueue, &( pxRxedMessage ), ( portTickType ) 10 ) )\r
- {\r
- // pcRxedMessage now points to the struct AMessage variable posted\r
- // by vATask.\r
- }\r
- }\r
-\r
- // ... Rest of task code.\r
- }\r
- </pre>\r
- * \defgroup xQueueReceive xQueueReceive\r
- * \ingroup QueueManagement\r
- */\r
-#define xQueueReceive( xQueue, pvBuffer, xTicksToWait ) xQueueGenericReceive( ( xQueue ), ( pvBuffer ), ( xTicksToWait ), pdFALSE )\r
-\r
-\r
-/**\r
- * queue. h\r
- * <pre>\r
- portBASE_TYPE xQueueGenericReceive(\r
- xQueueHandle xQueue,\r
- void *pvBuffer,\r
- portTickType xTicksToWait\r
- portBASE_TYPE xJustPeek\r
- );</pre>\r
- *\r
- * It is preferred that the macro xQueueReceive() be used rather than calling\r
- * this function directly.\r
- *\r
- * Receive an item from a queue. The item is received by copy so a buffer of\r
- * adequate size must be provided. The number of bytes copied into the buffer\r
- * was defined when the queue was created.\r
- *\r
- * This function must not be used in an interrupt service routine. See\r
- * xQueueReceiveFromISR for an alternative that can.\r
- *\r
- * @param pxQueue The handle to the queue from which the item is to be\r
- * received.\r
- *\r
- * @param pvBuffer Pointer to the buffer into which the received item will\r
- * be copied.\r
- *\r
- * @param xTicksToWait The maximum amount of time the task should block\r
- * waiting for an item to receive should the queue be empty at the time\r
- * of the call. The time is defined in tick periods so the constant\r
- * portTICK_RATE_MS should be used to convert to real time if this is required.\r
- * xQueueGenericReceive() will return immediately if the queue is empty and\r
- * xTicksToWait is 0.\r
- *\r
- * @param xJustPeek When set to true, the item received from the queue is not\r
- * actually removed from the queue - meaning a subsequent call to\r
- * xQueueReceive() will return the same item. When set to false, the item\r
- * being received from the queue is also removed from the queue.\r
- *\r
- * @return pdTRUE if an item was successfully received from the queue,\r
- * otherwise pdFALSE.\r
- *\r
- * Example usage:\r
- <pre>\r
- struct AMessage\r
- {\r
- char ucMessageID;\r
- char ucData[ 20 ];\r
- } xMessage;\r
-\r
- xQueueHandle xQueue;\r
-\r
- // Task to create a queue and post a value.\r
- void vATask( void *pvParameters )\r
- {\r
- struct AMessage *pxMessage;\r
-\r
- // Create a queue capable of containing 10 pointers to AMessage structures.\r
- // These should be passed by pointer as they contain a lot of data.\r
- xQueue = xQueueCreate( 10, sizeof( struct AMessage * ) );\r
- if( xQueue == 0 )\r
- {\r
- // Failed to create the queue.\r
- }\r
-\r
- // ...\r
-\r
- // Send a pointer to a struct AMessage object. Don't block if the\r
- // queue is already full.\r
- pxMessage = & xMessage;\r
- xQueueSend( xQueue, ( void * ) &pxMessage, ( portTickType ) 0 );\r
-\r
- // ... Rest of task code.\r
- }\r
-\r
- // Task to receive from the queue.\r
- void vADifferentTask( void *pvParameters )\r
- {\r
- struct AMessage *pxRxedMessage;\r
-\r
- if( xQueue != 0 )\r
- {\r
- // Receive a message on the created queue. Block for 10 ticks if a\r
- // message is not immediately available.\r
- if( xQueueGenericReceive( xQueue, &( pxRxedMessage ), ( portTickType ) 10 ) )\r
- {\r
- // pcRxedMessage now points to the struct AMessage variable posted\r
- // by vATask.\r
- }\r
- }\r
-\r
- // ... Rest of task code.\r
- }\r
- </pre>\r
- * \defgroup xQueueReceive xQueueReceive\r
- * \ingroup QueueManagement\r
- */\r
-signed portBASE_TYPE xQueueGenericReceive( xQueueHandle xQueue, void * const pvBuffer, portTickType xTicksToWait, portBASE_TYPE xJustPeek );\r
-\r
-/**\r
- * queue. h\r
- * <pre>unsigned portBASE_TYPE uxQueueMessagesWaiting( const xQueueHandle xQueue );</pre>\r
- *\r
- * Return the number of messages stored in a queue.\r
- *\r
- * @param xQueue A handle to the queue being queried.\r
- *\r
- * @return The number of messages available in the queue.\r
- *\r
- * \page uxQueueMessagesWaiting uxQueueMessagesWaiting\r
- * \ingroup QueueManagement\r
- */\r
-unsigned portBASE_TYPE uxQueueMessagesWaiting( const xQueueHandle xQueue );\r
-\r
-/**\r
- * queue. h\r
- * <pre>void vQueueDelete( xQueueHandle xQueue );</pre>\r
- *\r
- * Delete a queue - freeing all the memory allocated for storing of items\r
- * placed on the queue.\r
- *\r
- * @param xQueue A handle to the queue to be deleted.\r
- *\r
- * \page vQueueDelete vQueueDelete\r
- * \ingroup QueueManagement\r
- */\r
-void vQueueDelete( xQueueHandle pxQueue );\r
-\r
-/**\r
- * queue. h\r
- * <pre>\r
- portBASE_TYPE xQueueSendToFrontFromISR(\r
- xQueueHandle pxQueue,\r
- const void *pvItemToQueue,\r
- portBASE_TYPE *pxHigherPriorityTaskWoken\r
- );\r
- </pre>\r
- *\r
- * This is a macro that calls xQueueGenericSendFromISR().\r
- *\r
- * Post an item to the front of a queue. It is safe to use this macro from\r
- * within an interrupt service routine.\r
- *\r
- * Items are queued by copy not reference so it is preferable to only\r
- * queue small items, especially when called from an ISR. In most cases\r
- * it would be preferable to store a pointer to the item being queued.\r
- *\r
- * @param xQueue The handle to the queue on which the item is to be posted.\r
- *\r
- * @param pvItemToQueue A pointer to the item that is to be placed on the\r
- * queue. The size of the items the queue will hold was defined when the\r
- * queue was created, so this many bytes will be copied from pvItemToQueue\r
- * into the queue storage area.\r
- *\r
- * @param pxHigherPriorityTaskWoken xQueueSendToFrontFromISR() will set\r
- * *pxHigherPriorityTaskWoken to pdTRUE if sending to the queue caused a task\r
- * to unblock, and the unblocked task has a priority higher than the currently\r
- * running task. If xQueueSendToFromFromISR() sets this value to pdTRUE then\r
- * a context switch should be requested before the interrupt is exited.\r
- *\r
- * @return pdTRUE if the data was successfully sent to the queue, otherwise\r
- * errQUEUE_FULL.\r
- *\r
- * Example usage for buffered IO (where the ISR can obtain more than one value\r
- * per call):\r
- <pre>\r
- void vBufferISR( void )\r
- {\r
- char cIn;\r
- portBASE_TYPE xHigherPrioritTaskWoken;\r
-\r
- // We have not woken a task at the start of the ISR.\r
- xHigherPriorityTaskWoken = pdFALSE;\r
-\r
- // Loop until the buffer is empty.\r
- do\r
- {\r
- // Obtain a byte from the buffer.\r
- cIn = portINPUT_BYTE( RX_REGISTER_ADDRESS );\r
-\r
- // Post the byte.\r
- xQueueSendToFrontFromISR( xRxQueue, &cIn, &xHigherPriorityTaskWoken );\r
-\r
- } while( portINPUT_BYTE( BUFFER_COUNT ) );\r
-\r
- // Now the buffer is empty we can switch context if necessary.\r
- if( xHigherPriorityTaskWoken )\r
- {\r
- taskYIELD ();\r
- }\r
- }\r
- </pre>\r
- *\r
- * \defgroup xQueueSendFromISR xQueueSendFromISR\r
- * \ingroup QueueManagement\r
- */\r
-#define xQueueSendToFrontFromISR( pxQueue, pvItemToQueue, pxHigherPriorityTaskWoken ) xQueueGenericSendFromISR( ( pxQueue ), ( pvItemToQueue ), ( pxHigherPriorityTaskWoken ), queueSEND_TO_FRONT )\r
-\r
-\r
-/**\r
- * queue. h\r
- * <pre>\r
- portBASE_TYPE xQueueSendToBackFromISR(\r
- xQueueHandle pxQueue,\r
- const void *pvItemToQueue,\r
- portBASE_TYPE *pxHigherPriorityTaskWoken\r
- );\r
- </pre>\r
- *\r
- * This is a macro that calls xQueueGenericSendFromISR().\r
- *\r
- * Post an item to the back of a queue. It is safe to use this macro from\r
- * within an interrupt service routine.\r
- *\r
- * Items are queued by copy not reference so it is preferable to only\r
- * queue small items, especially when called from an ISR. In most cases\r
- * it would be preferable to store a pointer to the item being queued.\r
- *\r
- * @param xQueue The handle to the queue on which the item is to be posted.\r
- *\r
- * @param pvItemToQueue A pointer to the item that is to be placed on the\r
- * queue. The size of the items the queue will hold was defined when the\r
- * queue was created, so this many bytes will be copied from pvItemToQueue\r
- * into the queue storage area.\r
- *\r
- * @param pxHigherPriorityTaskWoken xQueueSendToBackFromISR() will set\r
- * *pxHigherPriorityTaskWoken to pdTRUE if sending to the queue caused a task\r
- * to unblock, and the unblocked task has a priority higher than the currently\r
- * running task. If xQueueSendToBackFromISR() sets this value to pdTRUE then\r
- * a context switch should be requested before the interrupt is exited.\r
- *\r
- * @return pdTRUE if the data was successfully sent to the queue, otherwise\r
- * errQUEUE_FULL.\r
- *\r
- * Example usage for buffered IO (where the ISR can obtain more than one value\r
- * per call):\r
- <pre>\r
- void vBufferISR( void )\r
- {\r
- char cIn;\r
- portBASE_TYPE xHigherPriorityTaskWoken;\r
-\r
- // We have not woken a task at the start of the ISR.\r
- xHigherPriorityTaskWoken = pdFALSE;\r
-\r
- // Loop until the buffer is empty.\r
- do\r
- {\r
- // Obtain a byte from the buffer.\r
- cIn = portINPUT_BYTE( RX_REGISTER_ADDRESS );\r
-\r
- // Post the byte.\r
- xQueueSendToBackFromISR( xRxQueue, &cIn, &xHigherPriorityTaskWoken );\r
-\r
- } while( portINPUT_BYTE( BUFFER_COUNT ) );\r
-\r
- // Now the buffer is empty we can switch context if necessary.\r
- if( xHigherPriorityTaskWoken )\r
- {\r
- taskYIELD ();\r
- }\r
- }\r
- </pre>\r
- *\r
- * \defgroup xQueueSendFromISR xQueueSendFromISR\r
- * \ingroup QueueManagement\r
- */\r
-#define xQueueSendToBackFromISR( pxQueue, pvItemToQueue, pxHigherPriorityTaskWoken ) xQueueGenericSendFromISR( ( pxQueue ), ( pvItemToQueue ), ( pxHigherPriorityTaskWoken ), queueSEND_TO_BACK )\r
-\r
-/**\r
- * queue. h\r
- * <pre>\r
- portBASE_TYPE xQueueSendFromISR(\r
- xQueueHandle pxQueue,\r
- const void *pvItemToQueue,\r
- portBASE_TYPE *pxHigherPriorityTaskWoken\r
- );\r
- </pre>\r
- *\r
- * This is a macro that calls xQueueGenericSendFromISR(). It is included\r
- * for backward compatibility with versions of FreeRTOS.org that did not\r
- * include the xQueueSendToBackFromISR() and xQueueSendToFrontFromISR()\r
- * macros.\r
- *\r
- * Post an item to the back of a queue. It is safe to use this function from\r
- * within an interrupt service routine.\r
- *\r
- * Items are queued by copy not reference so it is preferable to only\r
- * queue small items, especially when called from an ISR. In most cases\r
- * it would be preferable to store a pointer to the item being queued.\r
- *\r
- * @param xQueue The handle to the queue on which the item is to be posted.\r
- *\r
- * @param pvItemToQueue A pointer to the item that is to be placed on the\r
- * queue. The size of the items the queue will hold was defined when the\r
- * queue was created, so this many bytes will be copied from pvItemToQueue\r
- * into the queue storage area.\r
- *\r
- * @param pxHigherPriorityTaskWoken xQueueSendFromISR() will set\r
- * *pxHigherPriorityTaskWoken to pdTRUE if sending to the queue caused a task\r
- * to unblock, and the unblocked task has a priority higher than the currently\r
- * running task. If xQueueSendFromISR() sets this value to pdTRUE then\r
- * a context switch should be requested before the interrupt is exited.\r
- *\r
- * @return pdTRUE if the data was successfully sent to the queue, otherwise\r
- * errQUEUE_FULL.\r
- *\r
- * Example usage for buffered IO (where the ISR can obtain more than one value\r
- * per call):\r
- <pre>\r
- void vBufferISR( void )\r
- {\r
- char cIn;\r
- portBASE_TYPE xHigherPriorityTaskWoken;\r
-\r
- // We have not woken a task at the start of the ISR.\r
- xHigherPriorityTaskWoken = pdFALSE;\r
-\r
- // Loop until the buffer is empty.\r
- do\r
- {\r
- // Obtain a byte from the buffer.\r
- cIn = portINPUT_BYTE( RX_REGISTER_ADDRESS );\r
-\r
- // Post the byte.\r
- xQueueSendFromISR( xRxQueue, &cIn, &xHigherPriorityTaskWoken );\r
-\r
- } while( portINPUT_BYTE( BUFFER_COUNT ) );\r
-\r
- // Now the buffer is empty we can switch context if necessary.\r
- if( xHigherPriorityTaskWoken )\r
- {\r
- // Actual macro used here is port specific.\r
- taskYIELD_FROM_ISR ();\r
- }\r
- }\r
- </pre>\r
- *\r
- * \defgroup xQueueSendFromISR xQueueSendFromISR\r
- * \ingroup QueueManagement\r
- */\r
-#define xQueueSendFromISR( pxQueue, pvItemToQueue, pxHigherPriorityTaskWoken ) xQueueGenericSendFromISR( ( pxQueue ), ( pvItemToQueue ), ( pxHigherPriorityTaskWoken ), queueSEND_TO_BACK )\r
-\r
-/**\r
- * queue. h\r
- * <pre>\r
- portBASE_TYPE xQueueGenericSendFromISR(\r
- xQueueHandle pxQueue,\r
- const void *pvItemToQueue,\r
- portBASE_TYPE *pxHigherPriorityTaskWoken,\r
- portBASE_TYPE xCopyPosition\r
- );\r
- </pre>\r
- *\r
- * It is preferred that the macros xQueueSendFromISR(),\r
- * xQueueSendToFrontFromISR() and xQueueSendToBackFromISR() be used in place\r
- * of calling this function directly.\r
- *\r
- * Post an item on a queue. It is safe to use this function from within an\r
- * interrupt service routine.\r
- *\r
- * Items are queued by copy not reference so it is preferable to only\r
- * queue small items, especially when called from an ISR. In most cases\r
- * it would be preferable to store a pointer to the item being queued.\r
- *\r
- * @param xQueue The handle to the queue on which the item is to be posted.\r
- *\r
- * @param pvItemToQueue A pointer to the item that is to be placed on the\r
- * queue. The size of the items the queue will hold was defined when the\r
- * queue was created, so this many bytes will be copied from pvItemToQueue\r
- * into the queue storage area.\r
- *\r
- * @param pxHigherPriorityTaskWoken xQueueGenericSendFromISR() will set\r
- * *pxHigherPriorityTaskWoken to pdTRUE if sending to the queue caused a task\r
- * to unblock, and the unblocked task has a priority higher than the currently\r
- * running task. If xQueueGenericSendFromISR() sets this value to pdTRUE then\r
- * a context switch should be requested before the interrupt is exited.\r
- *\r
- * @param xCopyPosition Can take the value queueSEND_TO_BACK to place the\r
- * item at the back of the queue, or queueSEND_TO_FRONT to place the item\r
- * at the front of the queue (for high priority messages).\r
- *\r
- * @return pdTRUE if the data was successfully sent to the queue, otherwise\r
- * errQUEUE_FULL.\r
- *\r
- * Example usage for buffered IO (where the ISR can obtain more than one value\r
- * per call):\r
- <pre>\r
- void vBufferISR( void )\r
- {\r
- char cIn;\r
- portBASE_TYPE xHigherPriorityTaskWokenByPost;\r
-\r
- // We have not woken a task at the start of the ISR.\r
- xHigherPriorityTaskWokenByPost = pdFALSE;\r
-\r
- // Loop until the buffer is empty.\r
- do\r
- {\r
- // Obtain a byte from the buffer.\r
- cIn = portINPUT_BYTE( RX_REGISTER_ADDRESS );\r
-\r
- // Post each byte.\r
- xQueueGenericSendFromISR( xRxQueue, &cIn, &xHigherPriorityTaskWokenByPost, queueSEND_TO_BACK );\r
-\r
- } while( portINPUT_BYTE( BUFFER_COUNT ) );\r
-\r
- // Now the buffer is empty we can switch context if necessary. Note that the\r
- // name of the yield function required is port specific.\r
- if( xHigherPriorityTaskWokenByPost )\r
- {\r
- taskYIELD_YIELD_FROM_ISR();\r
- }\r
- }\r
- </pre>\r
- *\r
- * \defgroup xQueueSendFromISR xQueueSendFromISR\r
- * \ingroup QueueManagement\r
- */\r
-signed portBASE_TYPE xQueueGenericSendFromISR( xQueueHandle pxQueue, const void * const pvItemToQueue, signed portBASE_TYPE *pxHigherPriorityTaskWoken, portBASE_TYPE xCopyPosition );\r
-\r
-/**\r
- * queue. h\r
- * <pre>\r
- portBASE_TYPE xQueueReceiveFromISR(\r
- xQueueHandle pxQueue,\r
- void *pvBuffer,\r
- portBASE_TYPE *pxTaskWoken\r
- );\r
- * </pre>\r
- *\r
- * Receive an item from a queue. It is safe to use this function from within an\r
- * interrupt service routine.\r
- *\r
- * @param pxQueue The handle to the queue from which the item is to be\r
- * received.\r
- *\r
- * @param pvBuffer Pointer to the buffer into which the received item will\r
- * be copied.\r
- *\r
- * @param pxTaskWoken A task may be blocked waiting for space to become\r
- * available on the queue. If xQueueReceiveFromISR causes such a task to\r
- * unblock *pxTaskWoken will get set to pdTRUE, otherwise *pxTaskWoken will\r
- * remain unchanged.\r
- *\r
- * @return pdTRUE if an item was successfully received from the queue,\r
- * otherwise pdFALSE.\r
- *\r
- * Example usage:\r
- <pre>\r
-\r
- xQueueHandle xQueue;\r
-\r
- // Function to create a queue and post some values.\r
- void vAFunction( void *pvParameters )\r
- {\r
- char cValueToPost;\r
- const portTickType xBlockTime = ( portTickType )0xff;\r
-\r
- // Create a queue capable of containing 10 characters.\r
- xQueue = xQueueCreate( 10, sizeof( char ) );\r
- if( xQueue == 0 )\r
- {\r
- // Failed to create the queue.\r
- }\r
-\r
- // ...\r
-\r
- // Post some characters that will be used within an ISR. If the queue\r
- // is full then this task will block for xBlockTime ticks.\r
- cValueToPost = 'a';\r
- xQueueSend( xQueue, ( void * ) &cValueToPost, xBlockTime );\r
- cValueToPost = 'b';\r
- xQueueSend( xQueue, ( void * ) &cValueToPost, xBlockTime );\r
-\r
- // ... keep posting characters ... this task may block when the queue\r
- // becomes full.\r
-\r
- cValueToPost = 'c';\r
- xQueueSend( xQueue, ( void * ) &cValueToPost, xBlockTime );\r
- }\r
-\r
- // ISR that outputs all the characters received on the queue.\r
- void vISR_Routine( void )\r
- {\r
- portBASE_TYPE xTaskWokenByReceive = pdFALSE;\r
- char cRxedChar;\r
-\r
- while( xQueueReceiveFromISR( xQueue, ( void * ) &cRxedChar, &xTaskWokenByReceive) )\r
- {\r
- // A character was received. Output the character now.\r
- vOutputCharacter( cRxedChar );\r
-\r
- // If removing the character from the queue woke the task that was\r
- // posting onto the queue cTaskWokenByReceive will have been set to\r
- // pdTRUE. No matter how many times this loop iterates only one\r
- // task will be woken.\r
- }\r
-\r
- if( cTaskWokenByPost != ( char ) pdFALSE;\r
- {\r
- taskYIELD ();\r
- }\r
- }\r
- </pre>\r
- * \defgroup xQueueReceiveFromISR xQueueReceiveFromISR\r
- * \ingroup QueueManagement\r
- */\r
-signed portBASE_TYPE xQueueReceiveFromISR( xQueueHandle pxQueue, void * const pvBuffer, signed portBASE_TYPE *pxHigherPriorityTaskWoken );\r
-\r
-/*\r
- * Utilities to query queues that are safe to use from an ISR. These utilities\r
- * should be used only from witin an ISR, or within a critical section.\r
- */\r
-signed portBASE_TYPE xQueueIsQueueEmptyFromISR( const xQueueHandle pxQueue );\r
-signed portBASE_TYPE xQueueIsQueueFullFromISR( const xQueueHandle pxQueue );\r
-unsigned portBASE_TYPE uxQueueMessagesWaitingFromISR( const xQueueHandle pxQueue );\r
-\r
-\r
-/*\r
- * xQueueAltGenericSend() is an alternative version of xQueueGenericSend().\r
- * Likewise xQueueAltGenericReceive() is an alternative version of\r
- * xQueueGenericReceive().\r
- *\r
- * The source code that implements the alternative (Alt) API is much\r
- * simpler because it executes everything from within a critical section.\r
- * This is the approach taken by many other RTOSes, but FreeRTOS.org has the\r
- * preferred fully featured API too. The fully featured API has more\r
- * complex code that takes longer to execute, but makes much less use of\r
- * critical sections. Therefore the alternative API sacrifices interrupt\r
- * responsiveness to gain execution speed, whereas the fully featured API\r
- * sacrifices execution speed to ensure better interrupt responsiveness.\r
- */\r
-signed portBASE_TYPE xQueueAltGenericSend( xQueueHandle pxQueue, const void * const pvItemToQueue, portTickType xTicksToWait, portBASE_TYPE xCopyPosition );\r
-signed portBASE_TYPE xQueueAltGenericReceive( xQueueHandle pxQueue, void * const pvBuffer, portTickType xTicksToWait, portBASE_TYPE xJustPeeking );\r
-#define xQueueAltSendToFront( xQueue, pvItemToQueue, xTicksToWait ) xQueueAltGenericSend( ( xQueue ), ( pvItemToQueue ), ( xTicksToWait ), queueSEND_TO_FRONT )\r
-#define xQueueAltSendToBack( xQueue, pvItemToQueue, xTicksToWait ) xQueueAltGenericSend( ( xQueue ), ( pvItemToQueue ), ( xTicksToWait ), queueSEND_TO_BACK )\r
-#define xQueueAltReceive( xQueue, pvBuffer, xTicksToWait ) xQueueAltGenericReceive( ( xQueue ), ( pvBuffer ), ( xTicksToWait ), pdFALSE )\r
-#define xQueueAltPeek( xQueue, pvBuffer, xTicksToWait ) xQueueAltGenericReceive( ( xQueue ), ( pvBuffer ), ( xTicksToWait ), pdTRUE )\r
-\r
-/*\r
- * The functions defined above are for passing data to and from tasks. The\r
- * functions below are the equivalents for passing data to and from\r
- * co-routines.\r
- *\r
- * These functions are called from the co-routine macro implementation and\r
- * should not be called directly from application code. Instead use the macro\r
- * wrappers defined within croutine.h.\r
- */\r
-signed portBASE_TYPE xQueueCRSendFromISR( xQueueHandle pxQueue, const void *pvItemToQueue, signed portBASE_TYPE xCoRoutinePreviouslyWoken );\r
-signed portBASE_TYPE xQueueCRReceiveFromISR( xQueueHandle pxQueue, void *pvBuffer, signed portBASE_TYPE *pxTaskWoken );\r
-signed portBASE_TYPE xQueueCRSend( xQueueHandle pxQueue, const void *pvItemToQueue, portTickType xTicksToWait );\r
-signed portBASE_TYPE xQueueCRReceive( xQueueHandle pxQueue, void *pvBuffer, portTickType xTicksToWait );\r
-\r
-/*\r
- * For internal use only. Use xSemaphoreCreateMutex(), \r
- * xSemaphoreCreateCounting() or xSemaphoreGetMutexHolder() instead of calling \r
- * these functions directly.\r
- */\r
-xQueueHandle xQueueCreateMutex( unsigned char ucQueueType );\r
-xQueueHandle xQueueCreateCountingSemaphore( unsigned portBASE_TYPE uxCountValue, unsigned portBASE_TYPE uxInitialCount );\r
-void* xQueueGetMutexHolder( xQueueHandle xSemaphore );\r
-\r
-/*\r
- * For internal use only. Use xSemaphoreTakeMutexRecursive() or\r
- * xSemaphoreGiveMutexRecursive() instead of calling these functions directly.\r
- */\r
-portBASE_TYPE xQueueTakeMutexRecursive( xQueueHandle pxMutex, portTickType xBlockTime );\r
-portBASE_TYPE xQueueGiveMutexRecursive( xQueueHandle pxMutex );\r
-\r
-/*\r
- * Reset a queue back to its original empty state. pdPASS is returned if the\r
- * queue is successfully reset. pdFAIL is returned if the queue could not be\r
- * reset because there are tasks blocked on the queue waiting to either\r
- * receive from the queue or send to the queue.\r
- */\r
-#define xQueueReset( pxQueue ) xQueueGenericReset( pxQueue, pdFALSE )\r
-\r
-/*\r
- * The registry is provided as a means for kernel aware debuggers to\r
- * locate queues, semaphores and mutexes. Call vQueueAddToRegistry() add\r
- * a queue, semaphore or mutex handle to the registry if you want the handle\r
- * to be available to a kernel aware debugger. If you are not using a kernel\r
- * aware debugger then this function can be ignored.\r
- *\r
- * configQUEUE_REGISTRY_SIZE defines the maximum number of handles the\r
- * registry can hold. configQUEUE_REGISTRY_SIZE must be greater than 0\r
- * within FreeRTOSConfig.h for the registry to be available. Its value\r
- * does not effect the number of queues, semaphores and mutexes that can be\r
- * created - just the number that the registry can hold.\r
- *\r
- * @param xQueue The handle of the queue being added to the registry. This\r
- * is the handle returned by a call to xQueueCreate(). Semaphore and mutex\r
- * handles can also be passed in here.\r
- *\r
- * @param pcName The name to be associated with the handle. This is the\r
- * name that the kernel aware debugger will display.\r
- */\r
-#if configQUEUE_REGISTRY_SIZE > 0U\r
- void vQueueAddToRegistry( xQueueHandle xQueue, signed char *pcName );\r
-#endif\r
-\r
-/*\r
- * Generic version of the queue creation function, which is in turn called by \r
- * any queue, semaphore or mutex creation function or macro.\r
- */\r
-xQueueHandle xQueueGenericCreate( unsigned portBASE_TYPE uxQueueLength, unsigned portBASE_TYPE uxItemSize, unsigned char ucQueueType );\r
-\r
-/* Not public API functions. */\r
-void vQueueWaitForMessageRestricted( xQueueHandle pxQueue, portTickType xTicksToWait );\r
-portBASE_TYPE xQueueGenericReset( xQueueHandle pxQueue, portBASE_TYPE xNewQueue );\r
-\r
-\r
-#ifdef __cplusplus\r
-}\r
-#endif\r
-\r
-#endif /* QUEUE_H */\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
-\r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-#ifndef SEMAPHORE_H\r
-#define SEMAPHORE_H\r
-\r
-#ifndef INC_FREERTOS_H\r
- #error "include FreeRTOS.h" must appear in source files before "include semphr.h"\r
-#endif\r
-\r
-#include "queue.h"\r
-\r
-typedef xQueueHandle xSemaphoreHandle;\r
-\r
-#define semBINARY_SEMAPHORE_QUEUE_LENGTH ( ( unsigned char ) 1U )\r
-#define semSEMAPHORE_QUEUE_ITEM_LENGTH ( ( unsigned char ) 0U )\r
-#define semGIVE_BLOCK_TIME ( ( portTickType ) 0U )\r
-\r
-\r
-/**\r
- * semphr. h\r
- * <pre>vSemaphoreCreateBinary( xSemaphoreHandle xSemaphore )</pre>\r
- *\r
- * <i>Macro</i> that implements a semaphore by using the existing queue mechanism.\r
- * The queue length is 1 as this is a binary semaphore. The data size is 0\r
- * as we don't want to actually store any data - we just want to know if the\r
- * queue is empty or full.\r
- *\r
- * This type of semaphore can be used for pure synchronisation between tasks or\r
- * between an interrupt and a task. The semaphore need not be given back once\r
- * obtained, so one task/interrupt can continuously 'give' the semaphore while\r
- * another continuously 'takes' the semaphore. For this reason this type of\r
- * semaphore does not use a priority inheritance mechanism. For an alternative\r
- * that does use priority inheritance see xSemaphoreCreateMutex().\r
- *\r
- * @param xSemaphore Handle to the created semaphore. Should be of type xSemaphoreHandle.\r
- *\r
- * Example usage:\r
- <pre>\r
- xSemaphoreHandle xSemaphore;\r
-\r
- void vATask( void * pvParameters )\r
- {\r
- // Semaphore cannot be used before a call to vSemaphoreCreateBinary ().\r
- // This is a macro so pass the variable in directly.\r
- vSemaphoreCreateBinary( xSemaphore );\r
-\r
- if( xSemaphore != NULL )\r
- {\r
- // The semaphore was created successfully.\r
- // The semaphore can now be used. \r
- }\r
- }\r
- </pre>\r
- * \defgroup vSemaphoreCreateBinary vSemaphoreCreateBinary\r
- * \ingroup Semaphores\r
- */\r
-#define vSemaphoreCreateBinary( xSemaphore ) \\r
- { \\r
- ( xSemaphore ) = xQueueGenericCreate( ( unsigned portBASE_TYPE ) 1, semSEMAPHORE_QUEUE_ITEM_LENGTH, queueQUEUE_TYPE_BINARY_SEMAPHORE ); \\r
- if( ( xSemaphore ) != NULL ) \\r
- { \\r
- xSemaphoreGive( ( xSemaphore ) ); \\r
- } \\r
- }\r
-\r
-/**\r
- * semphr. h\r
- * <pre>xSemaphoreTake( \r
- * xSemaphoreHandle xSemaphore, \r
- * portTickType xBlockTime \r
- * )</pre>\r
- *\r
- * <i>Macro</i> to obtain a semaphore. The semaphore must have previously been\r
- * created with a call to vSemaphoreCreateBinary(), xSemaphoreCreateMutex() or\r
- * xSemaphoreCreateCounting().\r
- *\r
- * @param xSemaphore A handle to the semaphore being taken - obtained when\r
- * the semaphore was created.\r
- *\r
- * @param xBlockTime The time in ticks to wait for the semaphore to become\r
- * available. The macro portTICK_RATE_MS can be used to convert this to a\r
- * real time. A block time of zero can be used to poll the semaphore. A block\r
- * time of portMAX_DELAY can be used to block indefinitely (provided\r
- * INCLUDE_vTaskSuspend is set to 1 in FreeRTOSConfig.h).\r
- *\r
- * @return pdTRUE if the semaphore was obtained. pdFALSE\r
- * if xBlockTime expired without the semaphore becoming available.\r
- *\r
- * Example usage:\r
- <pre>\r
- xSemaphoreHandle xSemaphore = NULL;\r
-\r
- // A task that creates a semaphore.\r
- void vATask( void * pvParameters )\r
- {\r
- // Create the semaphore to guard a shared resource.\r
- vSemaphoreCreateBinary( xSemaphore );\r
- }\r
-\r
- // A task that uses the semaphore.\r
- void vAnotherTask( void * pvParameters )\r
- {\r
- // ... Do other things.\r
-\r
- if( xSemaphore != NULL )\r
- {\r
- // See if we can obtain the semaphore. If the semaphore is not available\r
- // wait 10 ticks to see if it becomes free. \r
- if( xSemaphoreTake( xSemaphore, ( portTickType ) 10 ) == pdTRUE )\r
- {\r
- // We were able to obtain the semaphore and can now access the\r
- // shared resource.\r
-\r
- // ...\r
-\r
- // We have finished accessing the shared resource. Release the \r
- // semaphore.\r
- xSemaphoreGive( xSemaphore );\r
- }\r
- else\r
- {\r
- // We could not obtain the semaphore and can therefore not access\r
- // the shared resource safely.\r
- }\r
- }\r
- }\r
- </pre>\r
- * \defgroup xSemaphoreTake xSemaphoreTake\r
- * \ingroup Semaphores\r
- */\r
-#define xSemaphoreTake( xSemaphore, xBlockTime ) xQueueGenericReceive( ( xQueueHandle ) ( xSemaphore ), NULL, ( xBlockTime ), pdFALSE )\r
-\r
-/**\r
- * semphr. h\r
- * xSemaphoreTakeRecursive( \r
- * xSemaphoreHandle xMutex, \r
- * portTickType xBlockTime \r
- * )\r
- *\r
- * <i>Macro</i> to recursively obtain, or 'take', a mutex type semaphore. \r
- * The mutex must have previously been created using a call to \r
- * xSemaphoreCreateRecursiveMutex();\r
- * \r
- * configUSE_RECURSIVE_MUTEXES must be set to 1 in FreeRTOSConfig.h for this\r
- * macro to be available.\r
- * \r
- * This macro must not be used on mutexes created using xSemaphoreCreateMutex().\r
- *\r
- * A mutex used recursively can be 'taken' repeatedly by the owner. The mutex \r
- * doesn't become available again until the owner has called \r
- * xSemaphoreGiveRecursive() for each successful 'take' request. For example, \r
- * if a task successfully 'takes' the same mutex 5 times then the mutex will \r
- * not be available to any other task until it has also 'given' the mutex back\r
- * exactly five times.\r
- *\r
- * @param xMutex A handle to the mutex being obtained. This is the\r
- * handle returned by xSemaphoreCreateRecursiveMutex();\r
- *\r
- * @param xBlockTime The time in ticks to wait for the semaphore to become\r
- * available. The macro portTICK_RATE_MS can be used to convert this to a\r
- * real time. A block time of zero can be used to poll the semaphore. If\r
- * the task already owns the semaphore then xSemaphoreTakeRecursive() will\r
- * return immediately no matter what the value of xBlockTime. \r
- *\r
- * @return pdTRUE if the semaphore was obtained. pdFALSE if xBlockTime\r
- * expired without the semaphore becoming available.\r
- *\r
- * Example usage:\r
- <pre>\r
- xSemaphoreHandle xMutex = NULL;\r
-\r
- // A task that creates a mutex.\r
- void vATask( void * pvParameters )\r
- {\r
- // Create the mutex to guard a shared resource.\r
- xMutex = xSemaphoreCreateRecursiveMutex();\r
- }\r
-\r
- // A task that uses the mutex.\r
- void vAnotherTask( void * pvParameters )\r
- {\r
- // ... Do other things.\r
-\r
- if( xMutex != NULL )\r
- {\r
- // See if we can obtain the mutex. If the mutex is not available\r
- // wait 10 ticks to see if it becomes free. \r
- if( xSemaphoreTakeRecursive( xSemaphore, ( portTickType ) 10 ) == pdTRUE )\r
- {\r
- // We were able to obtain the mutex and can now access the\r
- // shared resource.\r
-\r
- // ...\r
- // For some reason due to the nature of the code further calls to \r
- // xSemaphoreTakeRecursive() are made on the same mutex. In real\r
- // code these would not be just sequential calls as this would make\r
- // no sense. Instead the calls are likely to be buried inside\r
- // a more complex call structure.\r
- xSemaphoreTakeRecursive( xMutex, ( portTickType ) 10 );\r
- xSemaphoreTakeRecursive( xMutex, ( portTickType ) 10 );\r
-\r
- // The mutex has now been 'taken' three times, so will not be \r
- // available to another task until it has also been given back\r
- // three times. Again it is unlikely that real code would have\r
- // these calls sequentially, but instead buried in a more complex\r
- // call structure. This is just for illustrative purposes.\r
- xSemaphoreGiveRecursive( xMutex );\r
- xSemaphoreGiveRecursive( xMutex );\r
- xSemaphoreGiveRecursive( xMutex );\r
-\r
- // Now the mutex can be taken by other tasks.\r
- }\r
- else\r
- {\r
- // We could not obtain the mutex and can therefore not access\r
- // the shared resource safely.\r
- }\r
- }\r
- }\r
- </pre>\r
- * \defgroup xSemaphoreTakeRecursive xSemaphoreTakeRecursive\r
- * \ingroup Semaphores\r
- */\r
-#define xSemaphoreTakeRecursive( xMutex, xBlockTime ) xQueueTakeMutexRecursive( ( xMutex ), ( xBlockTime ) )\r
-\r
-\r
-/* \r
- * xSemaphoreAltTake() is an alternative version of xSemaphoreTake().\r
- *\r
- * The source code that implements the alternative (Alt) API is much \r
- * simpler because it executes everything from within a critical section. \r
- * This is the approach taken by many other RTOSes, but FreeRTOS.org has the \r
- * preferred fully featured API too. The fully featured API has more \r
- * complex code that takes longer to execute, but makes much less use of \r
- * critical sections. Therefore the alternative API sacrifices interrupt \r
- * responsiveness to gain execution speed, whereas the fully featured API\r
- * sacrifices execution speed to ensure better interrupt responsiveness.\r
- */\r
-#define xSemaphoreAltTake( xSemaphore, xBlockTime ) xQueueAltGenericReceive( ( xQueueHandle ) ( xSemaphore ), NULL, ( xBlockTime ), pdFALSE )\r
-\r
-/**\r
- * semphr. h\r
- * <pre>xSemaphoreGive( xSemaphoreHandle xSemaphore )</pre>\r
- *\r
- * <i>Macro</i> to release a semaphore. The semaphore must have previously been\r
- * created with a call to vSemaphoreCreateBinary(), xSemaphoreCreateMutex() or\r
- * xSemaphoreCreateCounting(). and obtained using sSemaphoreTake().\r
- *\r
- * This macro must not be used from an ISR. See xSemaphoreGiveFromISR () for\r
- * an alternative which can be used from an ISR.\r
- *\r
- * This macro must also not be used on semaphores created using \r
- * xSemaphoreCreateRecursiveMutex().\r
- *\r
- * @param xSemaphore A handle to the semaphore being released. This is the\r
- * handle returned when the semaphore was created.\r
- *\r
- * @return pdTRUE if the semaphore was released. pdFALSE if an error occurred.\r
- * Semaphores are implemented using queues. An error can occur if there is\r
- * no space on the queue to post a message - indicating that the \r
- * semaphore was not first obtained correctly.\r
- *\r
- * Example usage:\r
- <pre>\r
- xSemaphoreHandle xSemaphore = NULL;\r
-\r
- void vATask( void * pvParameters )\r
- {\r
- // Create the semaphore to guard a shared resource.\r
- vSemaphoreCreateBinary( xSemaphore );\r
-\r
- if( xSemaphore != NULL )\r
- {\r
- if( xSemaphoreGive( xSemaphore ) != pdTRUE )\r
- {\r
- // We would expect this call to fail because we cannot give\r
- // a semaphore without first "taking" it!\r
- }\r
-\r
- // Obtain the semaphore - don't block if the semaphore is not\r
- // immediately available.\r
- if( xSemaphoreTake( xSemaphore, ( portTickType ) 0 ) )\r
- {\r
- // We now have the semaphore and can access the shared resource.\r
-\r
- // ...\r
-\r
- // We have finished accessing the shared resource so can free the\r
- // semaphore.\r
- if( xSemaphoreGive( xSemaphore ) != pdTRUE )\r
- {\r
- // We would not expect this call to fail because we must have\r
- // obtained the semaphore to get here.\r
- }\r
- }\r
- }\r
- }\r
- </pre>\r
- * \defgroup xSemaphoreGive xSemaphoreGive\r
- * \ingroup Semaphores\r
- */\r
-#define xSemaphoreGive( xSemaphore ) xQueueGenericSend( ( xQueueHandle ) ( xSemaphore ), NULL, semGIVE_BLOCK_TIME, queueSEND_TO_BACK )\r
-\r
-/**\r
- * semphr. h\r
- * <pre>xSemaphoreGiveRecursive( xSemaphoreHandle xMutex )</pre>\r
- *\r
- * <i>Macro</i> to recursively release, or 'give', a mutex type semaphore.\r
- * The mutex must have previously been created using a call to \r
- * xSemaphoreCreateRecursiveMutex();\r
- * \r
- * configUSE_RECURSIVE_MUTEXES must be set to 1 in FreeRTOSConfig.h for this\r
- * macro to be available.\r
- *\r
- * This macro must not be used on mutexes created using xSemaphoreCreateMutex().\r
- * \r
- * A mutex used recursively can be 'taken' repeatedly by the owner. The mutex \r
- * doesn't become available again until the owner has called \r
- * xSemaphoreGiveRecursive() for each successful 'take' request. For example, \r
- * if a task successfully 'takes' the same mutex 5 times then the mutex will \r
- * not be available to any other task until it has also 'given' the mutex back\r
- * exactly five times.\r
- *\r
- * @param xMutex A handle to the mutex being released, or 'given'. This is the\r
- * handle returned by xSemaphoreCreateMutex();\r
- *\r
- * @return pdTRUE if the semaphore was given.\r
- *\r
- * Example usage:\r
- <pre>\r
- xSemaphoreHandle xMutex = NULL;\r
-\r
- // A task that creates a mutex.\r
- void vATask( void * pvParameters )\r
- {\r
- // Create the mutex to guard a shared resource.\r
- xMutex = xSemaphoreCreateRecursiveMutex();\r
- }\r
-\r
- // A task that uses the mutex.\r
- void vAnotherTask( void * pvParameters )\r
- {\r
- // ... Do other things.\r
-\r
- if( xMutex != NULL )\r
- {\r
- // See if we can obtain the mutex. If the mutex is not available\r
- // wait 10 ticks to see if it becomes free. \r
- if( xSemaphoreTakeRecursive( xMutex, ( portTickType ) 10 ) == pdTRUE )\r
- {\r
- // We were able to obtain the mutex and can now access the\r
- // shared resource.\r
-\r
- // ...\r
- // For some reason due to the nature of the code further calls to \r
- // xSemaphoreTakeRecursive() are made on the same mutex. In real\r
- // code these would not be just sequential calls as this would make\r
- // no sense. Instead the calls are likely to be buried inside\r
- // a more complex call structure.\r
- xSemaphoreTakeRecursive( xMutex, ( portTickType ) 10 );\r
- xSemaphoreTakeRecursive( xMutex, ( portTickType ) 10 );\r
-\r
- // The mutex has now been 'taken' three times, so will not be \r
- // available to another task until it has also been given back\r
- // three times. Again it is unlikely that real code would have\r
- // these calls sequentially, it would be more likely that the calls\r
- // to xSemaphoreGiveRecursive() would be called as a call stack\r
- // unwound. This is just for demonstrative purposes.\r
- xSemaphoreGiveRecursive( xMutex );\r
- xSemaphoreGiveRecursive( xMutex );\r
- xSemaphoreGiveRecursive( xMutex );\r
-\r
- // Now the mutex can be taken by other tasks.\r
- }\r
- else\r
- {\r
- // We could not obtain the mutex and can therefore not access\r
- // the shared resource safely.\r
- }\r
- }\r
- }\r
- </pre>\r
- * \defgroup xSemaphoreGiveRecursive xSemaphoreGiveRecursive\r
- * \ingroup Semaphores\r
- */\r
-#define xSemaphoreGiveRecursive( xMutex ) xQueueGiveMutexRecursive( ( xMutex ) )\r
-\r
-/* \r
- * xSemaphoreAltGive() is an alternative version of xSemaphoreGive().\r
- *\r
- * The source code that implements the alternative (Alt) API is much \r
- * simpler because it executes everything from within a critical section. \r
- * This is the approach taken by many other RTOSes, but FreeRTOS.org has the \r
- * preferred fully featured API too. The fully featured API has more \r
- * complex code that takes longer to execute, but makes much less use of \r
- * critical sections. Therefore the alternative API sacrifices interrupt \r
- * responsiveness to gain execution speed, whereas the fully featured API\r
- * sacrifices execution speed to ensure better interrupt responsiveness.\r
- */\r
-#define xSemaphoreAltGive( xSemaphore ) xQueueAltGenericSend( ( xQueueHandle ) ( xSemaphore ), NULL, semGIVE_BLOCK_TIME, queueSEND_TO_BACK )\r
-\r
-/**\r
- * semphr. h\r
- * <pre>\r
- xSemaphoreGiveFromISR( \r
- xSemaphoreHandle xSemaphore, \r
- signed portBASE_TYPE *pxHigherPriorityTaskWoken\r
- )</pre>\r
- *\r
- * <i>Macro</i> to release a semaphore. The semaphore must have previously been\r
- * created with a call to vSemaphoreCreateBinary() or xSemaphoreCreateCounting().\r
- *\r
- * Mutex type semaphores (those created using a call to xSemaphoreCreateMutex())\r
- * must not be used with this macro.\r
- *\r
- * This macro can be used from an ISR.\r
- *\r
- * @param xSemaphore A handle to the semaphore being released. This is the\r
- * handle returned when the semaphore was created.\r
- *\r
- * @param pxHigherPriorityTaskWoken xSemaphoreGiveFromISR() will set\r
- * *pxHigherPriorityTaskWoken to pdTRUE if giving the semaphore caused a task\r
- * to unblock, and the unblocked task has a priority higher than the currently\r
- * running task. If xSemaphoreGiveFromISR() sets this value to pdTRUE then\r
- * a context switch should be requested before the interrupt is exited.\r
- *\r
- * @return pdTRUE if the semaphore was successfully given, otherwise errQUEUE_FULL.\r
- *\r
- * Example usage:\r
- <pre>\r
- \#define LONG_TIME 0xffff\r
- \#define TICKS_TO_WAIT 10\r
- xSemaphoreHandle xSemaphore = NULL;\r
-\r
- // Repetitive task.\r
- void vATask( void * pvParameters )\r
- {\r
- for( ;; )\r
- {\r
- // We want this task to run every 10 ticks of a timer. The semaphore \r
- // was created before this task was started.\r
-\r
- // Block waiting for the semaphore to become available.\r
- if( xSemaphoreTake( xSemaphore, LONG_TIME ) == pdTRUE )\r
- {\r
- // It is time to execute.\r
-\r
- // ...\r
-\r
- // We have finished our task. Return to the top of the loop where\r
- // we will block on the semaphore until it is time to execute \r
- // again. Note when using the semaphore for synchronisation with an\r
- // ISR in this manner there is no need to 'give' the semaphore back.\r
- }\r
- }\r
- }\r
-\r
- // Timer ISR\r
- void vTimerISR( void * pvParameters )\r
- {\r
- static unsigned char ucLocalTickCount = 0;\r
- static signed portBASE_TYPE xHigherPriorityTaskWoken;\r
-\r
- // A timer tick has occurred.\r
-\r
- // ... Do other time functions.\r
-\r
- // Is it time for vATask () to run?\r
- xHigherPriorityTaskWoken = pdFALSE;\r
- ucLocalTickCount++;\r
- if( ucLocalTickCount >= TICKS_TO_WAIT )\r
- {\r
- // Unblock the task by releasing the semaphore.\r
- xSemaphoreGiveFromISR( xSemaphore, &xHigherPriorityTaskWoken );\r
-\r
- // Reset the count so we release the semaphore again in 10 ticks time.\r
- ucLocalTickCount = 0;\r
- }\r
-\r
- if( xHigherPriorityTaskWoken != pdFALSE )\r
- {\r
- // We can force a context switch here. Context switching from an\r
- // ISR uses port specific syntax. Check the demo task for your port\r
- // to find the syntax required.\r
- }\r
- }\r
- </pre>\r
- * \defgroup xSemaphoreGiveFromISR xSemaphoreGiveFromISR\r
- * \ingroup Semaphores\r
- */\r
-#define xSemaphoreGiveFromISR( xSemaphore, pxHigherPriorityTaskWoken ) xQueueGenericSendFromISR( ( xQueueHandle ) ( xSemaphore ), NULL, ( pxHigherPriorityTaskWoken ), queueSEND_TO_BACK )\r
-\r
-/**\r
- * semphr. h\r
- * <pre>\r
- xSemaphoreTakeFromISR( \r
- xSemaphoreHandle xSemaphore, \r
- signed portBASE_TYPE *pxHigherPriorityTaskWoken\r
- )</pre>\r
- *\r
- * <i>Macro</i> to take a semaphore from an ISR. The semaphore must have \r
- * previously been created with a call to vSemaphoreCreateBinary() or \r
- * xSemaphoreCreateCounting().\r
- *\r
- * Mutex type semaphores (those created using a call to xSemaphoreCreateMutex())\r
- * must not be used with this macro.\r
- *\r
- * This macro can be used from an ISR, however taking a semaphore from an ISR\r
- * is not a common operation. It is likely to only be useful when taking a\r
- * counting semaphore when an interrupt is obtaining an object from a resource\r
- * pool (when the semaphore count indicates the number of resources available).\r
- *\r
- * @param xSemaphore A handle to the semaphore being taken. This is the\r
- * handle returned when the semaphore was created.\r
- *\r
- * @param pxHigherPriorityTaskWoken xSemaphoreTakeFromISR() will set\r
- * *pxHigherPriorityTaskWoken to pdTRUE if taking the semaphore caused a task\r
- * to unblock, and the unblocked task has a priority higher than the currently\r
- * running task. If xSemaphoreTakeFromISR() sets this value to pdTRUE then\r
- * a context switch should be requested before the interrupt is exited.\r
- *\r
- * @return pdTRUE if the semaphore was successfully taken, otherwise \r
- * pdFALSE\r
- */\r
-#define xSemaphoreTakeFromISR( xSemaphore, pxHigherPriorityTaskWoken ) xQueueReceiveFromISR( ( xQueueHandle ) ( xSemaphore ), NULL, ( pxHigherPriorityTaskWoken ) )\r
-\r
-/**\r
- * semphr. h\r
- * <pre>xSemaphoreHandle xSemaphoreCreateMutex( void )</pre>\r
- *\r
- * <i>Macro</i> that implements a mutex semaphore by using the existing queue \r
- * mechanism.\r
- *\r
- * Mutexes created using this macro can be accessed using the xSemaphoreTake()\r
- * and xSemaphoreGive() macros. The xSemaphoreTakeRecursive() and \r
- * xSemaphoreGiveRecursive() macros should not be used.\r
- * \r
- * This type of semaphore uses a priority inheritance mechanism so a task \r
- * 'taking' a semaphore MUST ALWAYS 'give' the semaphore back once the \r
- * semaphore it is no longer required. \r
- *\r
- * Mutex type semaphores cannot be used from within interrupt service routines. \r
- *\r
- * See vSemaphoreCreateBinary() for an alternative implementation that can be \r
- * used for pure synchronisation (where one task or interrupt always 'gives' the \r
- * semaphore and another always 'takes' the semaphore) and from within interrupt \r
- * service routines.\r
- *\r
- * @return xSemaphore Handle to the created mutex semaphore. Should be of type \r
- * xSemaphoreHandle.\r
- *\r
- * Example usage:\r
- <pre>\r
- xSemaphoreHandle xSemaphore;\r
-\r
- void vATask( void * pvParameters )\r
- {\r
- // Semaphore cannot be used before a call to xSemaphoreCreateMutex().\r
- // This is a macro so pass the variable in directly.\r
- xSemaphore = xSemaphoreCreateMutex();\r
-\r
- if( xSemaphore != NULL )\r
- {\r
- // The semaphore was created successfully.\r
- // The semaphore can now be used. \r
- }\r
- }\r
- </pre>\r
- * \defgroup vSemaphoreCreateMutex vSemaphoreCreateMutex\r
- * \ingroup Semaphores\r
- */\r
-#define xSemaphoreCreateMutex() xQueueCreateMutex( queueQUEUE_TYPE_MUTEX )\r
-\r
-\r
-/**\r
- * semphr. h\r
- * <pre>xSemaphoreHandle xSemaphoreCreateRecursiveMutex( void )</pre>\r
- *\r
- * <i>Macro</i> that implements a recursive mutex by using the existing queue \r
- * mechanism.\r
- *\r
- * Mutexes created using this macro can be accessed using the \r
- * xSemaphoreTakeRecursive() and xSemaphoreGiveRecursive() macros. The \r
- * xSemaphoreTake() and xSemaphoreGive() macros should not be used.\r
- *\r
- * A mutex used recursively can be 'taken' repeatedly by the owner. The mutex \r
- * doesn't become available again until the owner has called \r
- * xSemaphoreGiveRecursive() for each successful 'take' request. For example, \r
- * if a task successfully 'takes' the same mutex 5 times then the mutex will \r
- * not be available to any other task until it has also 'given' the mutex back\r
- * exactly five times.\r
- * \r
- * This type of semaphore uses a priority inheritance mechanism so a task \r
- * 'taking' a semaphore MUST ALWAYS 'give' the semaphore back once the \r
- * semaphore it is no longer required. \r
- *\r
- * Mutex type semaphores cannot be used from within interrupt service routines. \r
- *\r
- * See vSemaphoreCreateBinary() for an alternative implementation that can be \r
- * used for pure synchronisation (where one task or interrupt always 'gives' the \r
- * semaphore and another always 'takes' the semaphore) and from within interrupt \r
- * service routines.\r
- *\r
- * @return xSemaphore Handle to the created mutex semaphore. Should be of type \r
- * xSemaphoreHandle.\r
- *\r
- * Example usage:\r
- <pre>\r
- xSemaphoreHandle xSemaphore;\r
-\r
- void vATask( void * pvParameters )\r
- {\r
- // Semaphore cannot be used before a call to xSemaphoreCreateMutex().\r
- // This is a macro so pass the variable in directly.\r
- xSemaphore = xSemaphoreCreateRecursiveMutex();\r
-\r
- if( xSemaphore != NULL )\r
- {\r
- // The semaphore was created successfully.\r
- // The semaphore can now be used. \r
- }\r
- }\r
- </pre>\r
- * \defgroup vSemaphoreCreateMutex vSemaphoreCreateMutex\r
- * \ingroup Semaphores\r
- */\r
-#define xSemaphoreCreateRecursiveMutex() xQueueCreateMutex( queueQUEUE_TYPE_RECURSIVE_MUTEX )\r
-\r
-/**\r
- * semphr. h\r
- * <pre>xSemaphoreHandle xSemaphoreCreateCounting( unsigned portBASE_TYPE uxMaxCount, unsigned portBASE_TYPE uxInitialCount )</pre>\r
- *\r
- * <i>Macro</i> that creates a counting semaphore by using the existing \r
- * queue mechanism. \r
- *\r
- * Counting semaphores are typically used for two things:\r
- *\r
- * 1) Counting events. \r
- *\r
- * In this usage scenario an event handler will 'give' a semaphore each time\r
- * an event occurs (incrementing the semaphore count value), and a handler \r
- * task will 'take' a semaphore each time it processes an event \r
- * (decrementing the semaphore count value). The count value is therefore \r
- * the difference between the number of events that have occurred and the \r
- * number that have been processed. In this case it is desirable for the \r
- * initial count value to be zero.\r
- *\r
- * 2) Resource management.\r
- *\r
- * In this usage scenario the count value indicates the number of resources\r
- * available. To obtain control of a resource a task must first obtain a \r
- * semaphore - decrementing the semaphore count value. When the count value\r
- * reaches zero there are no free resources. When a task finishes with the\r
- * resource it 'gives' the semaphore back - incrementing the semaphore count\r
- * value. In this case it is desirable for the initial count value to be\r
- * equal to the maximum count value, indicating that all resources are free.\r
- *\r
- * @param uxMaxCount The maximum count value that can be reached. When the \r
- * semaphore reaches this value it can no longer be 'given'.\r
- *\r
- * @param uxInitialCount The count value assigned to the semaphore when it is\r
- * created.\r
- *\r
- * @return Handle to the created semaphore. Null if the semaphore could not be\r
- * created.\r
- * \r
- * Example usage:\r
- <pre>\r
- xSemaphoreHandle xSemaphore;\r
-\r
- void vATask( void * pvParameters )\r
- {\r
- xSemaphoreHandle xSemaphore = NULL;\r
-\r
- // Semaphore cannot be used before a call to xSemaphoreCreateCounting().\r
- // The max value to which the semaphore can count should be 10, and the\r
- // initial value assigned to the count should be 0.\r
- xSemaphore = xSemaphoreCreateCounting( 10, 0 );\r
-\r
- if( xSemaphore != NULL )\r
- {\r
- // The semaphore was created successfully.\r
- // The semaphore can now be used. \r
- }\r
- }\r
- </pre>\r
- * \defgroup xSemaphoreCreateCounting xSemaphoreCreateCounting\r
- * \ingroup Semaphores\r
- */\r
-#define xSemaphoreCreateCounting( uxMaxCount, uxInitialCount ) xQueueCreateCountingSemaphore( ( uxMaxCount ), ( uxInitialCount ) )\r
-\r
-/**\r
- * semphr. h\r
- * <pre>void vSemaphoreDelete( xSemaphoreHandle xSemaphore );</pre>\r
- *\r
- * Delete a semaphore. This function must be used with care. For example,\r
- * do not delete a mutex type semaphore if the mutex is held by a task.\r
- *\r
- * @param xSemaphore A handle to the semaphore to be deleted.\r
- *\r
- * \page vSemaphoreDelete vSemaphoreDelete\r
- * \ingroup Semaphores\r
- */\r
-#define vSemaphoreDelete( xSemaphore ) vQueueDelete( ( xQueueHandle ) ( xSemaphore ) )\r
-\r
-/**\r
- * semphr.h\r
- * <pre>xTaskHandle xSemaphoreGetMutexHolder( xSemaphoreHandle xMutex );</pre>\r
- *\r
- * If xMutex is indeed a mutex type semaphore, return the current mutex holder.\r
- * If xMutex is not a mutex type semaphore, or the mutex is available (not held\r
- * by a task), return NULL.\r
- *\r
- * Note: This Is is a good way of determining if the calling task is the mutex \r
- * holder, but not a good way of determining the identity of the mutex holder as\r
- * the holder may change between the function exiting and the returned value\r
- * being tested.\r
- */\r
-#define xSemaphoreGetMutexHolder( xSemaphore ) xQueueGetMutexHolder( ( xSemaphore ) )\r
-\r
-#endif /* SEMAPHORE_H */\r
-\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
-\r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
-\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - Selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-\r
-#ifndef TASK_H\r
-#define TASK_H\r
-\r
-#ifndef INC_FREERTOS_H\r
- #error "include FreeRTOS.h must appear in source files before include task.h"\r
-#endif\r
-\r
-#include "portable.h"\r
-#include "list.h"\r
-\r
-#ifdef __cplusplus\r
-extern "C" {\r
-#endif\r
-\r
-/*-----------------------------------------------------------\r
- * MACROS AND DEFINITIONS\r
- *----------------------------------------------------------*/\r
-\r
-#define tskKERNEL_VERSION_NUMBER "V7.2.0"\r
-\r
-/**\r
- * task. h\r
- *\r
- * Type by which tasks are referenced. For example, a call to xTaskCreate\r
- * returns (via a pointer parameter) an xTaskHandle variable that can then\r
- * be used as a parameter to vTaskDelete to delete the task.\r
- *\r
- * \page xTaskHandle xTaskHandle\r
- * \ingroup Tasks\r
- */\r
-typedef void * xTaskHandle;\r
-\r
-/*\r
- * Used internally only.\r
- */\r
-typedef struct xTIME_OUT\r
-{\r
- portBASE_TYPE xOverflowCount;\r
- portTickType xTimeOnEntering;\r
-} xTimeOutType;\r
-\r
-/*\r
- * Defines the memory ranges allocated to the task when an MPU is used.\r
- */\r
-typedef struct xMEMORY_REGION\r
-{\r
- void *pvBaseAddress;\r
- unsigned long ulLengthInBytes;\r
- unsigned long ulParameters;\r
-} xMemoryRegion;\r
-\r
-/*\r
- * Parameters required to create an MPU protected task.\r
- */\r
-typedef struct xTASK_PARAMTERS\r
-{\r
- pdTASK_CODE pvTaskCode;\r
- const signed char * const pcName;\r
- unsigned short usStackDepth;\r
- void *pvParameters;\r
- unsigned portBASE_TYPE uxPriority;\r
- portSTACK_TYPE *puxStackBuffer;\r
- xMemoryRegion xRegions[ portNUM_CONFIGURABLE_REGIONS ];\r
-} xTaskParameters;\r
-\r
-/* Task states returned by eTaskStateGet. */\r
-typedef enum\r
-{\r
- eRunning = 0, /* A task is querying the state of itself, so must be running. */\r
- eReady, /* The task being queried is in a read or pending ready list. */\r
- eBlocked, /* The task being queried is in the Blocked state. */\r
- eSuspended, /* The task being queried is in the Suspended state, or is in the Blocked state with an infinite time out. */\r
- eDeleted /* The task being queried has been deleted, but its TCB has not yet been freed. */\r
-} eTaskState;\r
-\r
-/*\r
- * Defines the priority used by the idle task. This must not be modified.\r
- *\r
- * \ingroup TaskUtils\r
- */\r
-#define tskIDLE_PRIORITY ( ( unsigned portBASE_TYPE ) 0U )\r
-\r
-/**\r
- * task. h\r
- *\r
- * Macro for forcing a context switch.\r
- *\r
- * \page taskYIELD taskYIELD\r
- * \ingroup SchedulerControl\r
- */\r
-#define taskYIELD() portYIELD()\r
-\r
-/**\r
- * task. h\r
- *\r
- * Macro to mark the start of a critical code region. Preemptive context\r
- * switches cannot occur when in a critical region.\r
- *\r
- * NOTE: This may alter the stack (depending on the portable implementation)\r
- * so must be used with care!\r
- *\r
- * \page taskENTER_CRITICAL taskENTER_CRITICAL\r
- * \ingroup SchedulerControl\r
- */\r
-#define taskENTER_CRITICAL() portENTER_CRITICAL()\r
-\r
-/**\r
- * task. h\r
- *\r
- * Macro to mark the end of a critical code region. Preemptive context\r
- * switches cannot occur when in a critical region.\r
- *\r
- * NOTE: This may alter the stack (depending on the portable implementation)\r
- * so must be used with care!\r
- *\r
- * \page taskEXIT_CRITICAL taskEXIT_CRITICAL\r
- * \ingroup SchedulerControl\r
- */\r
-#define taskEXIT_CRITICAL() portEXIT_CRITICAL()\r
-\r
-/**\r
- * task. h\r
- *\r
- * Macro to disable all maskable interrupts.\r
- *\r
- * \page taskDISABLE_INTERRUPTS taskDISABLE_INTERRUPTS\r
- * \ingroup SchedulerControl\r
- */\r
-#define taskDISABLE_INTERRUPTS() portDISABLE_INTERRUPTS()\r
-\r
-/**\r
- * task. h\r
- *\r
- * Macro to enable microcontroller interrupts.\r
- *\r
- * \page taskENABLE_INTERRUPTS taskENABLE_INTERRUPTS\r
- * \ingroup SchedulerControl\r
- */\r
-#define taskENABLE_INTERRUPTS() portENABLE_INTERRUPTS()\r
-\r
-/* Definitions returned by xTaskGetSchedulerState(). */\r
-#define taskSCHEDULER_NOT_STARTED 0\r
-#define taskSCHEDULER_RUNNING 1\r
-#define taskSCHEDULER_SUSPENDED 2\r
-\r
-/*-----------------------------------------------------------\r
- * TASK CREATION API\r
- *----------------------------------------------------------*/\r
-\r
-/**\r
- * task. h\r
- *<pre>\r
- portBASE_TYPE xTaskCreate(\r
- pdTASK_CODE pvTaskCode,\r
- const char * const pcName,\r
- unsigned short usStackDepth,\r
- void *pvParameters,\r
- unsigned portBASE_TYPE uxPriority,\r
- xTaskHandle *pvCreatedTask\r
- );</pre>\r
- *\r
- * Create a new task and add it to the list of tasks that are ready to run.\r
- *\r
- * xTaskCreate() can only be used to create a task that has unrestricted\r
- * access to the entire microcontroller memory map. Systems that include MPU\r
- * support can alternatively create an MPU constrained task using\r
- * xTaskCreateRestricted().\r
- *\r
- * @param pvTaskCode Pointer to the task entry function. Tasks\r
- * must be implemented to never return (i.e. continuous loop).\r
- *\r
- * @param pcName A descriptive name for the task. This is mainly used to\r
- * facilitate debugging. Max length defined by tskMAX_TASK_NAME_LEN - default\r
- * is 16.\r
- *\r
- * @param usStackDepth The size of the task stack specified as the number of\r
- * variables the stack can hold - not the number of bytes. For example, if\r
- * the stack is 16 bits wide and usStackDepth is defined as 100, 200 bytes\r
- * will be allocated for stack storage.\r
- *\r
- * @param pvParameters Pointer that will be used as the parameter for the task\r
- * being created.\r
- *\r
- * @param uxPriority The priority at which the task should run. Systems that\r
- * include MPU support can optionally create tasks in a privileged (system)\r
- * mode by setting bit portPRIVILEGE_BIT of the priority parameter. For\r
- * example, to create a privileged task at priority 2 the uxPriority parameter\r
- * should be set to ( 2 | portPRIVILEGE_BIT ).\r
- *\r
- * @param pvCreatedTask Used to pass back a handle by which the created task\r
- * can be referenced.\r
- *\r
- * @return pdPASS if the task was successfully created and added to a ready\r
- * list, otherwise an error code defined in the file errors. h\r
- *\r
- * Example usage:\r
- <pre>\r
- // Task to be created.\r
- void vTaskCode( void * pvParameters )\r
- {\r
- for( ;; )\r
- {\r
- // Task code goes here.\r
- }\r
- }\r
-\r
- // Function that creates a task.\r
- void vOtherFunction( void )\r
- {\r
- static unsigned char ucParameterToPass;\r
- xTaskHandle xHandle;\r
-\r
- // Create the task, storing the handle. Note that the passed parameter ucParameterToPass\r
- // must exist for the lifetime of the task, so in this case is declared static. If it was just an\r
- // an automatic stack variable it might no longer exist, or at least have been corrupted, by the time\r
- // the new task attempts to access it.\r
- xTaskCreate( vTaskCode, "NAME", STACK_SIZE, &ucParameterToPass, tskIDLE_PRIORITY, &xHandle );\r
-\r
- // Use the handle to delete the task.\r
- vTaskDelete( xHandle );\r
- }\r
- </pre>\r
- * \defgroup xTaskCreate xTaskCreate\r
- * \ingroup Tasks\r
- */\r
-#define xTaskCreate( pvTaskCode, pcName, usStackDepth, pvParameters, uxPriority, pxCreatedTask ) xTaskGenericCreate( ( pvTaskCode ), ( pcName ), ( usStackDepth ), ( pvParameters ), ( uxPriority ), ( pxCreatedTask ), ( NULL ), ( NULL ) )\r
-\r
-/**\r
- * task. h\r
- *<pre>\r
- portBASE_TYPE xTaskCreateRestricted( xTaskParameters *pxTaskDefinition, xTaskHandle *pxCreatedTask );</pre>\r
- *\r
- * xTaskCreateRestricted() should only be used in systems that include an MPU\r
- * implementation.\r
- *\r
- * Create a new task and add it to the list of tasks that are ready to run.\r
- * The function parameters define the memory regions and associated access\r
- * permissions allocated to the task.\r
- *\r
- * @param pxTaskDefinition Pointer to a structure that contains a member\r
- * for each of the normal xTaskCreate() parameters (see the xTaskCreate() API\r
- * documentation) plus an optional stack buffer and the memory region\r
- * definitions.\r
- *\r
- * @param pxCreatedTask Used to pass back a handle by which the created task\r
- * can be referenced.\r
- *\r
- * @return pdPASS if the task was successfully created and added to a ready\r
- * list, otherwise an error code defined in the file errors. h\r
- *\r
- * Example usage:\r
- <pre>\r
-// Create an xTaskParameters structure that defines the task to be created.\r
-static const xTaskParameters xCheckTaskParameters =\r
-{\r
- vATask, // pvTaskCode - the function that implements the task.\r
- "ATask", // pcName - just a text name for the task to assist debugging.\r
- 100, // usStackDepth - the stack size DEFINED IN WORDS.\r
- NULL, // pvParameters - passed into the task function as the function parameters.\r
- ( 1UL | portPRIVILEGE_BIT ),// uxPriority - task priority, set the portPRIVILEGE_BIT if the task should run in a privileged state.\r
- cStackBuffer,// puxStackBuffer - the buffer to be used as the task stack.\r
-\r
- // xRegions - Allocate up to three separate memory regions for access by\r
- // the task, with appropriate access permissions. Different processors have\r
- // different memory alignment requirements - refer to the FreeRTOS documentation\r
- // for full information.\r
- { \r
- // Base address Length Parameters\r
- { cReadWriteArray, 32, portMPU_REGION_READ_WRITE },\r
- { cReadOnlyArray, 32, portMPU_REGION_READ_ONLY },\r
- { cPrivilegedOnlyAccessArray, 128, portMPU_REGION_PRIVILEGED_READ_WRITE }\r
- }\r
-};\r
-\r
-int main( void )\r
-{\r
-xTaskHandle xHandle;\r
-\r
- // Create a task from the const structure defined above. The task handle\r
- // is requested (the second parameter is not NULL) but in this case just for\r
- // demonstration purposes as its not actually used.\r
- xTaskCreateRestricted( &xRegTest1Parameters, &xHandle );\r
-\r
- // Start the scheduler.\r
- vTaskStartScheduler();\r
-\r
- // Will only get here if there was insufficient memory to create the idle\r
- // task.\r
- for( ;; );\r
-}\r
- </pre>\r
- * \defgroup xTaskCreateRestricted xTaskCreateRestricted\r
- * \ingroup Tasks\r
- */\r
-#define xTaskCreateRestricted( x, pxCreatedTask ) xTaskGenericCreate( ((x)->pvTaskCode), ((x)->pcName), ((x)->usStackDepth), ((x)->pvParameters), ((x)->uxPriority), (pxCreatedTask), ((x)->puxStackBuffer), ((x)->xRegions) )\r
-\r
-/**\r
- * task. h\r
- *<pre>\r
- void vTaskAllocateMPURegions( xTaskHandle xTask, const xMemoryRegion * const pxRegions );</pre>\r
- *\r
- * Memory regions are assigned to a restricted task when the task is created by\r
- * a call to xTaskCreateRestricted(). These regions can be redefined using\r
- * vTaskAllocateMPURegions().\r
- *\r
- * @param xTask The handle of the task being updated.\r
- *\r
- * @param xRegions A pointer to an xMemoryRegion structure that contains the\r
- * new memory region definitions.\r
- *\r
- * Example usage:\r
- <pre>\r
-// Define an array of xMemoryRegion structures that configures an MPU region\r
-// allowing read/write access for 1024 bytes starting at the beginning of the\r
-// ucOneKByte array. The other two of the maximum 3 definable regions are\r
-// unused so set to zero.\r
-static const xMemoryRegion xAltRegions[ portNUM_CONFIGURABLE_REGIONS ] =\r
-{ \r
- // Base address Length Parameters\r
- { ucOneKByte, 1024, portMPU_REGION_READ_WRITE },\r
- { 0, 0, 0 },\r
- { 0, 0, 0 }\r
-};\r
-\r
-void vATask( void *pvParameters )\r
-{\r
- // This task was created such that it has access to certain regions of\r
- // memory as defined by the MPU configuration. At some point it is\r
- // desired that these MPU regions are replaced with that defined in the\r
- // xAltRegions const struct above. Use a call to vTaskAllocateMPURegions()\r
- // for this purpose. NULL is used as the task handle to indicate that this\r
- // function should modify the MPU regions of the calling task.\r
- vTaskAllocateMPURegions( NULL, xAltRegions );\r
- \r
- // Now the task can continue its function, but from this point on can only\r
- // access its stack and the ucOneKByte array (unless any other statically\r
- // defined or shared regions have been declared elsewhere).\r
-}\r
- </pre>\r
- * \defgroup xTaskCreateRestricted xTaskCreateRestricted\r
- * \ingroup Tasks\r
- */\r
-void vTaskAllocateMPURegions( xTaskHandle xTask, const xMemoryRegion * const pxRegions ) PRIVILEGED_FUNCTION;\r
-\r
-/**\r
- * task. h\r
- * <pre>void vTaskDelete( xTaskHandle pxTask );</pre>\r
- *\r
- * INCLUDE_vTaskDelete must be defined as 1 for this function to be available.\r
- * See the configuration section for more information.\r
- *\r
- * Remove a task from the RTOS real time kernels management. The task being\r
- * deleted will be removed from all ready, blocked, suspended and event lists.\r
- *\r
- * NOTE: The idle task is responsible for freeing the kernel allocated\r
- * memory from tasks that have been deleted. It is therefore important that\r
- * the idle task is not starved of microcontroller processing time if your\r
- * application makes any calls to vTaskDelete (). Memory allocated by the\r
- * task code is not automatically freed, and should be freed before the task\r
- * is deleted.\r
- *\r
- * See the demo application file death.c for sample code that utilises\r
- * vTaskDelete ().\r
- *\r
- * @param pxTask The handle of the task to be deleted. Passing NULL will\r
- * cause the calling task to be deleted.\r
- *\r
- * Example usage:\r
- <pre>\r
- void vOtherFunction( void )\r
- {\r
- xTaskHandle xHandle;\r
-\r
- // Create the task, storing the handle.\r
- xTaskCreate( vTaskCode, "NAME", STACK_SIZE, NULL, tskIDLE_PRIORITY, &xHandle );\r
-\r
- // Use the handle to delete the task.\r
- vTaskDelete( xHandle );\r
- }\r
- </pre>\r
- * \defgroup vTaskDelete vTaskDelete\r
- * \ingroup Tasks\r
- */\r
-void vTaskDelete( xTaskHandle pxTaskToDelete ) PRIVILEGED_FUNCTION;\r
-\r
-/*-----------------------------------------------------------\r
- * TASK CONTROL API\r
- *----------------------------------------------------------*/\r
-\r
-/**\r
- * task. h\r
- * <pre>void vTaskDelay( portTickType xTicksToDelay );</pre>\r
- *\r
- * Delay a task for a given number of ticks. The actual time that the\r
- * task remains blocked depends on the tick rate. The constant\r
- * portTICK_RATE_MS can be used to calculate real time from the tick\r
- * rate - with the resolution of one tick period.\r
- *\r
- * INCLUDE_vTaskDelay must be defined as 1 for this function to be available.\r
- * See the configuration section for more information.\r
- *\r
- *\r
- * vTaskDelay() specifies a time at which the task wishes to unblock relative to\r
- * the time at which vTaskDelay() is called. For example, specifying a block\r
- * period of 100 ticks will cause the task to unblock 100 ticks after\r
- * vTaskDelay() is called. vTaskDelay() does not therefore provide a good method\r
- * of controlling the frequency of a cyclical task as the path taken through the\r
- * code, as well as other task and interrupt activity, will effect the frequency\r
- * at which vTaskDelay() gets called and therefore the time at which the task\r
- * next executes. See vTaskDelayUntil() for an alternative API function designed\r
- * to facilitate fixed frequency execution. It does this by specifying an\r
- * absolute time (rather than a relative time) at which the calling task should\r
- * unblock.\r
- *\r
- * @param xTicksToDelay The amount of time, in tick periods, that\r
- * the calling task should block.\r
- *\r
- * Example usage:\r
-\r
- void vTaskFunction( void * pvParameters )\r
- {\r
- void vTaskFunction( void * pvParameters )\r
- {\r
- // Block for 500ms.\r
- const portTickType xDelay = 500 / portTICK_RATE_MS;\r
-\r
- for( ;; )\r
- {\r
- // Simply toggle the LED every 500ms, blocking between each toggle.\r
- vToggleLED();\r
- vTaskDelay( xDelay );\r
- }\r
- }\r
-\r
- * \defgroup vTaskDelay vTaskDelay\r
- * \ingroup TaskCtrl\r
- */\r
-void vTaskDelay( portTickType xTicksToDelay ) PRIVILEGED_FUNCTION;\r
-\r
-/**\r
- * task. h\r
- * <pre>void vTaskDelayUntil( portTickType *pxPreviousWakeTime, portTickType xTimeIncrement );</pre>\r
- *\r
- * INCLUDE_vTaskDelayUntil must be defined as 1 for this function to be available.\r
- * See the configuration section for more information.\r
- *\r
- * Delay a task until a specified time. This function can be used by cyclical\r
- * tasks to ensure a constant execution frequency.\r
- *\r
- * This function differs from vTaskDelay () in one important aspect: vTaskDelay () will\r
- * cause a task to block for the specified number of ticks from the time vTaskDelay () is\r
- * called. It is therefore difficult to use vTaskDelay () by itself to generate a fixed\r
- * execution frequency as the time between a task starting to execute and that task\r
- * calling vTaskDelay () may not be fixed [the task may take a different path though the\r
- * code between calls, or may get interrupted or preempted a different number of times\r
- * each time it executes].\r
- *\r
- * Whereas vTaskDelay () specifies a wake time relative to the time at which the function\r
- * is called, vTaskDelayUntil () specifies the absolute (exact) time at which it wishes to\r
- * unblock.\r
- *\r
- * The constant portTICK_RATE_MS can be used to calculate real time from the tick\r
- * rate - with the resolution of one tick period.\r
- *\r
- * @param pxPreviousWakeTime Pointer to a variable that holds the time at which the\r
- * task was last unblocked. The variable must be initialised with the current time\r
- * prior to its first use (see the example below). Following this the variable is\r
- * automatically updated within vTaskDelayUntil ().\r
- *\r
- * @param xTimeIncrement The cycle time period. The task will be unblocked at\r
- * time *pxPreviousWakeTime + xTimeIncrement. Calling vTaskDelayUntil with the\r
- * same xTimeIncrement parameter value will cause the task to execute with\r
- * a fixed interface period.\r
- *\r
- * Example usage:\r
- <pre>\r
- // Perform an action every 10 ticks.\r
- void vTaskFunction( void * pvParameters )\r
- {\r
- portTickType xLastWakeTime;\r
- const portTickType xFrequency = 10;\r
-\r
- // Initialise the xLastWakeTime variable with the current time.\r
- xLastWakeTime = xTaskGetTickCount ();\r
- for( ;; )\r
- {\r
- // Wait for the next cycle.\r
- vTaskDelayUntil( &xLastWakeTime, xFrequency );\r
-\r
- // Perform action here.\r
- }\r
- }\r
- </pre>\r
- * \defgroup vTaskDelayUntil vTaskDelayUntil\r
- * \ingroup TaskCtrl\r
- */\r
-void vTaskDelayUntil( portTickType * const pxPreviousWakeTime, portTickType xTimeIncrement ) PRIVILEGED_FUNCTION;\r
-\r
-/**\r
- * task. h\r
- * <pre>unsigned portBASE_TYPE uxTaskPriorityGet( xTaskHandle pxTask );</pre>\r
- *\r
- * INCLUDE_xTaskPriorityGet must be defined as 1 for this function to be available.\r
- * See the configuration section for more information.\r
- *\r
- * Obtain the priority of any task.\r
- *\r
- * @param pxTask Handle of the task to be queried. Passing a NULL\r
- * handle results in the priority of the calling task being returned.\r
- *\r
- * @return The priority of pxTask.\r
- *\r
- * Example usage:\r
- <pre>\r
- void vAFunction( void )\r
- {\r
- xTaskHandle xHandle;\r
-\r
- // Create a task, storing the handle.\r
- xTaskCreate( vTaskCode, "NAME", STACK_SIZE, NULL, tskIDLE_PRIORITY, &xHandle );\r
-\r
- // ...\r
-\r
- // Use the handle to obtain the priority of the created task.\r
- // It was created with tskIDLE_PRIORITY, but may have changed\r
- // it itself.\r
- if( uxTaskPriorityGet( xHandle ) != tskIDLE_PRIORITY )\r
- {\r
- // The task has changed it's priority.\r
- }\r
-\r
- // ...\r
-\r
- // Is our priority higher than the created task?\r
- if( uxTaskPriorityGet( xHandle ) < uxTaskPriorityGet( NULL ) )\r
- {\r
- // Our priority (obtained using NULL handle) is higher.\r
- }\r
- }\r
- </pre>\r
- * \defgroup uxTaskPriorityGet uxTaskPriorityGet\r
- * \ingroup TaskCtrl\r
- */\r
-unsigned portBASE_TYPE uxTaskPriorityGet( xTaskHandle pxTask ) PRIVILEGED_FUNCTION;\r
-\r
-/**\r
- * task. h\r
- * <pre>eTaskState eTaskStateGet( xTaskHandle pxTask );</pre>\r
- *\r
- * INCLUDE_eTaskStateGet must be defined as 1 for this function to be available.\r
- * See the configuration section for more information.\r
- *\r
- * Obtain the state of any task. States are encoded by the eTaskState \r
- * enumerated type.\r
- *\r
- * @param pxTask Handle of the task to be queried.\r
- *\r
- * @return The state of pxTask at the time the function was called. Note the\r
- * state of the task might change between the function being called, and the\r
- * functions return value being tested by the calling task.\r
- */\r
-eTaskState eTaskStateGet( xTaskHandle pxTask ) PRIVILEGED_FUNCTION;\r
-\r
-/**\r
- * task. h\r
- * <pre>void vTaskPrioritySet( xTaskHandle pxTask, unsigned portBASE_TYPE uxNewPriority );</pre>\r
- *\r
- * INCLUDE_vTaskPrioritySet must be defined as 1 for this function to be available.\r
- * See the configuration section for more information.\r
- *\r
- * Set the priority of any task.\r
- *\r
- * A context switch will occur before the function returns if the priority\r
- * being set is higher than the currently executing task.\r
- *\r
- * @param pxTask Handle to the task for which the priority is being set.\r
- * Passing a NULL handle results in the priority of the calling task being set.\r
- *\r
- * @param uxNewPriority The priority to which the task will be set.\r
- *\r
- * Example usage:\r
- <pre>\r
- void vAFunction( void )\r
- {\r
- xTaskHandle xHandle;\r
-\r
- // Create a task, storing the handle.\r
- xTaskCreate( vTaskCode, "NAME", STACK_SIZE, NULL, tskIDLE_PRIORITY, &xHandle );\r
-\r
- // ...\r
-\r
- // Use the handle to raise the priority of the created task.\r
- vTaskPrioritySet( xHandle, tskIDLE_PRIORITY + 1 );\r
-\r
- // ...\r
-\r
- // Use a NULL handle to raise our priority to the same value.\r
- vTaskPrioritySet( NULL, tskIDLE_PRIORITY + 1 );\r
- }\r
- </pre>\r
- * \defgroup vTaskPrioritySet vTaskPrioritySet\r
- * \ingroup TaskCtrl\r
- */\r
-void vTaskPrioritySet( xTaskHandle pxTask, unsigned portBASE_TYPE uxNewPriority ) PRIVILEGED_FUNCTION;\r
-\r
-/**\r
- * task. h\r
- * <pre>void vTaskSuspend( xTaskHandle pxTaskToSuspend );</pre>\r
- *\r
- * INCLUDE_vTaskSuspend must be defined as 1 for this function to be available.\r
- * See the configuration section for more information.\r
- *\r
- * Suspend any task. When suspended a task will never get any microcontroller\r
- * processing time, no matter what its priority.\r
- *\r
- * Calls to vTaskSuspend are not accumulative -\r
- * i.e. calling vTaskSuspend () twice on the same task still only requires one\r
- * call to vTaskResume () to ready the suspended task.\r
- *\r
- * @param pxTaskToSuspend Handle to the task being suspended. Passing a NULL\r
- * handle will cause the calling task to be suspended.\r
- *\r
- * Example usage:\r
- <pre>\r
- void vAFunction( void )\r
- {\r
- xTaskHandle xHandle;\r
-\r
- // Create a task, storing the handle.\r
- xTaskCreate( vTaskCode, "NAME", STACK_SIZE, NULL, tskIDLE_PRIORITY, &xHandle );\r
-\r
- // ...\r
-\r
- // Use the handle to suspend the created task.\r
- vTaskSuspend( xHandle );\r
-\r
- // ...\r
-\r
- // The created task will not run during this period, unless\r
- // another task calls vTaskResume( xHandle ).\r
-\r
- //...\r
-\r
-\r
- // Suspend ourselves.\r
- vTaskSuspend( NULL );\r
-\r
- // We cannot get here unless another task calls vTaskResume\r
- // with our handle as the parameter.\r
- }\r
- </pre>\r
- * \defgroup vTaskSuspend vTaskSuspend\r
- * \ingroup TaskCtrl\r
- */\r
-void vTaskSuspend( xTaskHandle pxTaskToSuspend ) PRIVILEGED_FUNCTION;\r
-\r
-/**\r
- * task. h\r
- * <pre>void vTaskResume( xTaskHandle pxTaskToResume );</pre>\r
- *\r
- * INCLUDE_vTaskSuspend must be defined as 1 for this function to be available.\r
- * See the configuration section for more information.\r
- *\r
- * Resumes a suspended task.\r
- *\r
- * A task that has been suspended by one of more calls to vTaskSuspend ()\r
- * will be made available for running again by a single call to\r
- * vTaskResume ().\r
- *\r
- * @param pxTaskToResume Handle to the task being readied.\r
- *\r
- * Example usage:\r
- <pre>\r
- void vAFunction( void )\r
- {\r
- xTaskHandle xHandle;\r
-\r
- // Create a task, storing the handle.\r
- xTaskCreate( vTaskCode, "NAME", STACK_SIZE, NULL, tskIDLE_PRIORITY, &xHandle );\r
-\r
- // ...\r
-\r
- // Use the handle to suspend the created task.\r
- vTaskSuspend( xHandle );\r
-\r
- // ...\r
-\r
- // The created task will not run during this period, unless\r
- // another task calls vTaskResume( xHandle ).\r
-\r
- //...\r
-\r
-\r
- // Resume the suspended task ourselves.\r
- vTaskResume( xHandle );\r
-\r
- // The created task will once again get microcontroller processing\r
- // time in accordance with it priority within the system.\r
- }\r
- </pre>\r
- * \defgroup vTaskResume vTaskResume\r
- * \ingroup TaskCtrl\r
- */\r
-void vTaskResume( xTaskHandle pxTaskToResume ) PRIVILEGED_FUNCTION;\r
-\r
-/**\r
- * task. h\r
- * <pre>void xTaskResumeFromISR( xTaskHandle pxTaskToResume );</pre>\r
- *\r
- * INCLUDE_xTaskResumeFromISR must be defined as 1 for this function to be\r
- * available. See the configuration section for more information.\r
- *\r
- * An implementation of vTaskResume() that can be called from within an ISR.\r
- *\r
- * A task that has been suspended by one of more calls to vTaskSuspend ()\r
- * will be made available for running again by a single call to\r
- * xTaskResumeFromISR ().\r
- *\r
- * @param pxTaskToResume Handle to the task being readied.\r
- *\r
- * \defgroup vTaskResumeFromISR vTaskResumeFromISR\r
- * \ingroup TaskCtrl\r
- */\r
-portBASE_TYPE xTaskResumeFromISR( xTaskHandle pxTaskToResume ) PRIVILEGED_FUNCTION;\r
-\r
-/*-----------------------------------------------------------\r
- * SCHEDULER CONTROL\r
- *----------------------------------------------------------*/\r
-\r
-/**\r
- * task. h\r
- * <pre>void vTaskStartScheduler( void );</pre>\r
- *\r
- * Starts the real time kernel tick processing. After calling the kernel\r
- * has control over which tasks are executed and when. This function\r
- * does not return until an executing task calls vTaskEndScheduler ().\r
- *\r
- * At least one task should be created via a call to xTaskCreate ()\r
- * before calling vTaskStartScheduler (). The idle task is created\r
- * automatically when the first application task is created.\r
- *\r
- * See the demo application file main.c for an example of creating\r
- * tasks and starting the kernel.\r
- *\r
- * Example usage:\r
- <pre>\r
- void vAFunction( void )\r
- {\r
- // Create at least one task before starting the kernel.\r
- xTaskCreate( vTaskCode, "NAME", STACK_SIZE, NULL, tskIDLE_PRIORITY, NULL );\r
-\r
- // Start the real time kernel with preemption.\r
- vTaskStartScheduler ();\r
-\r
- // Will not get here unless a task calls vTaskEndScheduler ()\r
- }\r
- </pre>\r
- *\r
- * \defgroup vTaskStartScheduler vTaskStartScheduler\r
- * \ingroup SchedulerControl\r
- */\r
-void vTaskStartScheduler( void ) PRIVILEGED_FUNCTION;\r
-\r
-/**\r
- * task. h\r
- * <pre>void vTaskEndScheduler( void );</pre>\r
- *\r
- * Stops the real time kernel tick. All created tasks will be automatically\r
- * deleted and multitasking (either preemptive or cooperative) will\r
- * stop. Execution then resumes from the point where vTaskStartScheduler ()\r
- * was called, as if vTaskStartScheduler () had just returned.\r
- *\r
- * See the demo application file main. c in the demo/PC directory for an\r
- * example that uses vTaskEndScheduler ().\r
- *\r
- * vTaskEndScheduler () requires an exit function to be defined within the\r
- * portable layer (see vPortEndScheduler () in port. c for the PC port). This\r
- * performs hardware specific operations such as stopping the kernel tick.\r
- *\r
- * vTaskEndScheduler () will cause all of the resources allocated by the\r
- * kernel to be freed - but will not free resources allocated by application\r
- * tasks.\r
- *\r
- * Example usage:\r
- <pre>\r
- void vTaskCode( void * pvParameters )\r
- {\r
- for( ;; )\r
- {\r
- // Task code goes here.\r
-\r
- // At some point we want to end the real time kernel processing\r
- // so call ...\r
- vTaskEndScheduler ();\r
- }\r
- }\r
-\r
- void vAFunction( void )\r
- {\r
- // Create at least one task before starting the kernel.\r
- xTaskCreate( vTaskCode, "NAME", STACK_SIZE, NULL, tskIDLE_PRIORITY, NULL );\r
-\r
- // Start the real time kernel with preemption.\r
- vTaskStartScheduler ();\r
-\r
- // Will only get here when the vTaskCode () task has called\r
- // vTaskEndScheduler (). When we get here we are back to single task\r
- // execution.\r
- }\r
- </pre>\r
- *\r
- * \defgroup vTaskEndScheduler vTaskEndScheduler\r
- * \ingroup SchedulerControl\r
- */\r
-void vTaskEndScheduler( void ) PRIVILEGED_FUNCTION;\r
-\r
-/**\r
- * task. h\r
- * <pre>void vTaskSuspendAll( void );</pre>\r
- *\r
- * Suspends all real time kernel activity while keeping interrupts (including the\r
- * kernel tick) enabled.\r
- *\r
- * After calling vTaskSuspendAll () the calling task will continue to execute\r
- * without risk of being swapped out until a call to xTaskResumeAll () has been\r
- * made.\r
- *\r
- * API functions that have the potential to cause a context switch (for example,\r
- * vTaskDelayUntil(), xQueueSend(), etc.) must not be called while the scheduler\r
- * is suspended.\r
- *\r
- * Example usage:\r
- <pre>\r
- void vTask1( void * pvParameters )\r
- {\r
- for( ;; )\r
- {\r
- // Task code goes here.\r
-\r
- // ...\r
-\r
- // At some point the task wants to perform a long operation during\r
- // which it does not want to get swapped out. It cannot use\r
- // taskENTER_CRITICAL ()/taskEXIT_CRITICAL () as the length of the\r
- // operation may cause interrupts to be missed - including the\r
- // ticks.\r
-\r
- // Prevent the real time kernel swapping out the task.\r
- vTaskSuspendAll ();\r
-\r
- // Perform the operation here. There is no need to use critical\r
- // sections as we have all the microcontroller processing time.\r
- // During this time interrupts will still operate and the kernel\r
- // tick count will be maintained.\r
-\r
- // ...\r
-\r
- // The operation is complete. Restart the kernel.\r
- xTaskResumeAll ();\r
- }\r
- }\r
- </pre>\r
- * \defgroup vTaskSuspendAll vTaskSuspendAll\r
- * \ingroup SchedulerControl\r
- */\r
-void vTaskSuspendAll( void ) PRIVILEGED_FUNCTION;\r
-\r
-/**\r
- * task. h\r
- * <pre>char xTaskResumeAll( void );</pre>\r
- *\r
- * Resumes real time kernel activity following a call to vTaskSuspendAll ().\r
- * After a call to vTaskSuspendAll () the kernel will take control of which\r
- * task is executing at any time.\r
- *\r
- * @return If resuming the scheduler caused a context switch then pdTRUE is\r
- * returned, otherwise pdFALSE is returned.\r
- *\r
- * Example usage:\r
- <pre>\r
- void vTask1( void * pvParameters )\r
- {\r
- for( ;; )\r
- {\r
- // Task code goes here.\r
-\r
- // ...\r
-\r
- // At some point the task wants to perform a long operation during\r
- // which it does not want to get swapped out. It cannot use\r
- // taskENTER_CRITICAL ()/taskEXIT_CRITICAL () as the length of the\r
- // operation may cause interrupts to be missed - including the\r
- // ticks.\r
-\r
- // Prevent the real time kernel swapping out the task.\r
- vTaskSuspendAll ();\r
-\r
- // Perform the operation here. There is no need to use critical\r
- // sections as we have all the microcontroller processing time.\r
- // During this time interrupts will still operate and the real\r
- // time kernel tick count will be maintained.\r
-\r
- // ...\r
-\r
- // The operation is complete. Restart the kernel. We want to force\r
- // a context switch - but there is no point if resuming the scheduler\r
- // caused a context switch already.\r
- if( !xTaskResumeAll () )\r
- {\r
- taskYIELD ();\r
- }\r
- }\r
- }\r
- </pre>\r
- * \defgroup xTaskResumeAll xTaskResumeAll\r
- * \ingroup SchedulerControl\r
- */\r
-signed portBASE_TYPE xTaskResumeAll( void ) PRIVILEGED_FUNCTION;\r
-\r
-/**\r
- * task. h\r
- * <pre>signed portBASE_TYPE xTaskIsTaskSuspended( xTaskHandle xTask );</pre>\r
- *\r
- * Utility task that simply returns pdTRUE if the task referenced by xTask is\r
- * currently in the Suspended state, or pdFALSE if the task referenced by xTask\r
- * is in any other state.\r
- *\r
- */\r
-signed portBASE_TYPE xTaskIsTaskSuspended( xTaskHandle xTask ) PRIVILEGED_FUNCTION;\r
-\r
-/*-----------------------------------------------------------\r
- * TASK UTILITIES\r
- *----------------------------------------------------------*/\r
-\r
-/**\r
- * task. h\r
- * <PRE>portTickType xTaskGetTickCount( void );</PRE>\r
- *\r
- * @return The count of ticks since vTaskStartScheduler was called.\r
- *\r
- * \page xTaskGetTickCount xTaskGetTickCount\r
- * \ingroup TaskUtils\r
- */\r
-portTickType xTaskGetTickCount( void ) PRIVILEGED_FUNCTION;\r
-\r
-/**\r
- * task. h\r
- * <PRE>portTickType xTaskGetTickCountFromISR( void );</PRE>\r
- *\r
- * @return The count of ticks since vTaskStartScheduler was called.\r
- *\r
- * This is a version of xTaskGetTickCount() that is safe to be called from an\r
- * ISR - provided that portTickType is the natural word size of the\r
- * microcontroller being used or interrupt nesting is either not supported or\r
- * not being used.\r
- *\r
- * \page xTaskGetTickCount xTaskGetTickCount\r
- * \ingroup TaskUtils\r
- */\r
-portTickType xTaskGetTickCountFromISR( void ) PRIVILEGED_FUNCTION;\r
-\r
-/**\r
- * task. h\r
- * <PRE>unsigned short uxTaskGetNumberOfTasks( void );</PRE>\r
- *\r
- * @return The number of tasks that the real time kernel is currently managing.\r
- * This includes all ready, blocked and suspended tasks. A task that\r
- * has been deleted but not yet freed by the idle task will also be\r
- * included in the count.\r
- *\r
- * \page uxTaskGetNumberOfTasks uxTaskGetNumberOfTasks\r
- * \ingroup TaskUtils\r
- */\r
-unsigned portBASE_TYPE uxTaskGetNumberOfTasks( void ) PRIVILEGED_FUNCTION;\r
-\r
-/**\r
- * task. h\r
- * <PRE>signed char *pcTaskGetTaskName( xTaskHandle xTaskToQuery );</PRE>\r
- *\r
- * @return The text (human readable) name of the task referenced by the handle\r
- * xTaskToQueury. A task can query its own name by either passing in its own\r
- * handle, or by setting xTaskToQuery to NULL. INCLUDE_pcTaskGetTaskName must be\r
- * set to 1 in FreeRTOSConfig.h for pcTaskGetTaskName() to be available.\r
- *\r
- * \page pcTaskGetTaskName pcTaskGetTaskName\r
- * \ingroup TaskUtils\r
- */\r
-signed char *pcTaskGetTaskName( xTaskHandle xTaskToQuery );\r
-\r
-/**\r
- * task. h\r
- * <PRE>void vTaskList( char *pcWriteBuffer );</PRE>\r
- *\r
- * configUSE_TRACE_FACILITY must be defined as 1 for this function to be\r
- * available. See the configuration section for more information.\r
- *\r
- * NOTE: This function will disable interrupts for its duration. It is\r
- * not intended for normal application runtime use but as a debug aid.\r
- *\r
- * Lists all the current tasks, along with their current state and stack\r
- * usage high water mark.\r
- *\r
- * Tasks are reported as blocked ('B'), ready ('R'), deleted ('D') or\r
- * suspended ('S').\r
- *\r
- * @param pcWriteBuffer A buffer into which the above mentioned details\r
- * will be written, in ascii form. This buffer is assumed to be large\r
- * enough to contain the generated report. Approximately 40 bytes per\r
- * task should be sufficient.\r
- *\r
- * \page vTaskList vTaskList\r
- * \ingroup TaskUtils\r
- */\r
-void vTaskList( signed char *pcWriteBuffer ) PRIVILEGED_FUNCTION;\r
-\r
-/**\r
- * task. h\r
- * <PRE>void vTaskGetRunTimeStats( char *pcWriteBuffer );</PRE>\r
- *\r
- * configGENERATE_RUN_TIME_STATS must be defined as 1 for this function\r
- * to be available. The application must also then provide definitions\r
- * for portCONFIGURE_TIMER_FOR_RUN_TIME_STATS() and\r
- * portGET_RUN_TIME_COUNTER_VALUE to configure a peripheral timer/counter\r
- * and return the timers current count value respectively. The counter\r
- * should be at least 10 times the frequency of the tick count.\r
- *\r
- * NOTE: This function will disable interrupts for its duration. It is\r
- * not intended for normal application runtime use but as a debug aid.\r
- *\r
- * Setting configGENERATE_RUN_TIME_STATS to 1 will result in a total\r
- * accumulated execution time being stored for each task. The resolution\r
- * of the accumulated time value depends on the frequency of the timer\r
- * configured by the portCONFIGURE_TIMER_FOR_RUN_TIME_STATS() macro.\r
- * Calling vTaskGetRunTimeStats() writes the total execution time of each\r
- * task into a buffer, both as an absolute count value and as a percentage\r
- * of the total system execution time.\r
- *\r
- * @param pcWriteBuffer A buffer into which the execution times will be\r
- * written, in ascii form. This buffer is assumed to be large enough to\r
- * contain the generated report. Approximately 40 bytes per task should\r
- * be sufficient.\r
- *\r
- * \page vTaskGetRunTimeStats vTaskGetRunTimeStats\r
- * \ingroup TaskUtils\r
- */\r
-void vTaskGetRunTimeStats( signed char *pcWriteBuffer ) PRIVILEGED_FUNCTION;\r
-\r
-/**\r
- * task.h\r
- * <PRE>unsigned portBASE_TYPE uxTaskGetStackHighWaterMark( xTaskHandle xTask );</PRE>\r
- *\r
- * INCLUDE_uxTaskGetStackHighWaterMark must be set to 1 in FreeRTOSConfig.h for\r
- * this function to be available.\r
- *\r
- * Returns the high water mark of the stack associated with xTask. That is,\r
- * the minimum free stack space there has been (in words, so on a 32 bit machine\r
- * a value of 1 means 4 bytes) since the task started. The smaller the returned\r
- * number the closer the task has come to overflowing its stack.\r
- *\r
- * @param xTask Handle of the task associated with the stack to be checked.\r
- * Set xTask to NULL to check the stack of the calling task.\r
- *\r
- * @return The smallest amount of free stack space there has been (in bytes)\r
- * since the task referenced by xTask was created.\r
- */\r
-unsigned portBASE_TYPE uxTaskGetStackHighWaterMark( xTaskHandle xTask ) PRIVILEGED_FUNCTION;\r
-\r
-/* When using trace macros it is sometimes necessary to include tasks.h before\r
-FreeRTOS.h. When this is done pdTASK_HOOK_CODE will not yet have been defined,\r
-so the following two prototypes will cause a compilation error. This can be\r
-fixed by simply guarding against the inclusion of these two prototypes unless\r
-they are explicitly required by the configUSE_APPLICATION_TASK_TAG configuration\r
-constant. */\r
-#ifdef configUSE_APPLICATION_TASK_TAG\r
- #if configUSE_APPLICATION_TASK_TAG == 1\r
- /**\r
- * task.h\r
- * <pre>void vTaskSetApplicationTaskTag( xTaskHandle xTask, pdTASK_HOOK_CODE pxHookFunction );</pre>\r
- *\r
- * Sets pxHookFunction to be the task hook function used by the task xTask.\r
- * Passing xTask as NULL has the effect of setting the calling tasks hook\r
- * function.\r
- */\r
- void vTaskSetApplicationTaskTag( xTaskHandle xTask, pdTASK_HOOK_CODE pxHookFunction ) PRIVILEGED_FUNCTION;\r
-\r
- /**\r
- * task.h\r
- * <pre>void xTaskGetApplicationTaskTag( xTaskHandle xTask );</pre>\r
- *\r
- * Returns the pxHookFunction value assigned to the task xTask.\r
- */\r
- pdTASK_HOOK_CODE xTaskGetApplicationTaskTag( xTaskHandle xTask ) PRIVILEGED_FUNCTION;\r
- #endif /* configUSE_APPLICATION_TASK_TAG ==1 */\r
-#endif /* ifdef configUSE_APPLICATION_TASK_TAG */\r
-\r
-/**\r
- * task.h\r
- * <pre>portBASE_TYPE xTaskCallApplicationTaskHook( xTaskHandle xTask, pdTASK_HOOK_CODE pxHookFunction );</pre>\r
- *\r
- * Calls the hook function associated with xTask. Passing xTask as NULL has\r
- * the effect of calling the Running tasks (the calling task) hook function.\r
- *\r
- * pvParameter is passed to the hook function for the task to interpret as it\r
- * wants.\r
- */\r
-portBASE_TYPE xTaskCallApplicationTaskHook( xTaskHandle xTask, void *pvParameter ) PRIVILEGED_FUNCTION;\r
-\r
-/**\r
- * xTaskGetIdleTaskHandle() is only available if \r
- * INCLUDE_xTaskGetIdleTaskHandle is set to 1 in FreeRTOSConfig.h.\r
- *\r
- * Simply returns the handle of the idle task. It is not valid to call\r
- * xTaskGetIdleTaskHandle() before the scheduler has been started.\r
- */\r
-xTaskHandle xTaskGetIdleTaskHandle( void );\r
-\r
-/*-----------------------------------------------------------\r
- * SCHEDULER INTERNALS AVAILABLE FOR PORTING PURPOSES\r
- *----------------------------------------------------------*/\r
-\r
-/*\r
- * THIS FUNCTION MUST NOT BE USED FROM APPLICATION CODE. IT IS ONLY\r
- * INTENDED FOR USE WHEN IMPLEMENTING A PORT OF THE SCHEDULER AND IS\r
- * AN INTERFACE WHICH IS FOR THE EXCLUSIVE USE OF THE SCHEDULER.\r
- *\r
- * Called from the real time kernel tick (either preemptive or cooperative),\r
- * this increments the tick count and checks if any tasks that are blocked\r
- * for a finite period required removing from a blocked list and placing on\r
- * a ready list.\r
- */\r
-void vTaskIncrementTick( void ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * THIS FUNCTION MUST NOT BE USED FROM APPLICATION CODE. IT IS AN\r
- * INTERFACE WHICH IS FOR THE EXCLUSIVE USE OF THE SCHEDULER.\r
- *\r
- * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED.\r
- *\r
- * Removes the calling task from the ready list and places it both\r
- * on the list of tasks waiting for a particular event, and the\r
- * list of delayed tasks. The task will be removed from both lists\r
- * and replaced on the ready list should either the event occur (and\r
- * there be no higher priority tasks waiting on the same event) or\r
- * the delay period expires.\r
- *\r
- * @param pxEventList The list containing tasks that are blocked waiting\r
- * for the event to occur.\r
- *\r
- * @param xTicksToWait The maximum amount of time that the task should wait\r
- * for the event to occur. This is specified in kernel ticks,the constant\r
- * portTICK_RATE_MS can be used to convert kernel ticks into a real time\r
- * period.\r
- */\r
-void vTaskPlaceOnEventList( const xList * const pxEventList, portTickType xTicksToWait ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * THIS FUNCTION MUST NOT BE USED FROM APPLICATION CODE. IT IS AN\r
- * INTERFACE WHICH IS FOR THE EXCLUSIVE USE OF THE SCHEDULER.\r
- *\r
- * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED.\r
- *\r
- * This function performs nearly the same function as vTaskPlaceOnEventList().\r
- * The difference being that this function does not permit tasks to block\r
- * indefinitely, whereas vTaskPlaceOnEventList() does.\r
- *\r
- * @return pdTRUE if the task being removed has a higher priority than the task\r
- * making the call, otherwise pdFALSE.\r
- */\r
-void vTaskPlaceOnEventListRestricted( const xList * const pxEventList, portTickType xTicksToWait ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * THIS FUNCTION MUST NOT BE USED FROM APPLICATION CODE. IT IS AN\r
- * INTERFACE WHICH IS FOR THE EXCLUSIVE USE OF THE SCHEDULER.\r
- *\r
- * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED.\r
- *\r
- * Removes a task from both the specified event list and the list of blocked\r
- * tasks, and places it on a ready queue.\r
- *\r
- * xTaskRemoveFromEventList () will be called if either an event occurs to\r
- * unblock a task, or the block timeout period expires.\r
- *\r
- * @return pdTRUE if the task being removed has a higher priority than the task\r
- * making the call, otherwise pdFALSE.\r
- */\r
-signed portBASE_TYPE xTaskRemoveFromEventList( const xList * const pxEventList ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * THIS FUNCTION MUST NOT BE USED FROM APPLICATION CODE. IT IS ONLY\r
- * INTENDED FOR USE WHEN IMPLEMENTING A PORT OF THE SCHEDULER AND IS\r
- * AN INTERFACE WHICH IS FOR THE EXCLUSIVE USE OF THE SCHEDULER.\r
- *\r
- * Sets the pointer to the current TCB to the TCB of the highest priority task\r
- * that is ready to run.\r
- */\r
-void vTaskSwitchContext( void ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * Return the handle of the calling task.\r
- */\r
-xTaskHandle xTaskGetCurrentTaskHandle( void ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * Capture the current time status for future reference.\r
- */\r
-void vTaskSetTimeOutState( xTimeOutType * const pxTimeOut ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * Compare the time status now with that previously captured to see if the\r
- * timeout has expired.\r
- */\r
-portBASE_TYPE xTaskCheckForTimeOut( xTimeOutType * const pxTimeOut, portTickType * const pxTicksToWait ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * Shortcut used by the queue implementation to prevent unnecessary call to\r
- * taskYIELD();\r
- */\r
-void vTaskMissedYield( void ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * Returns the scheduler state as taskSCHEDULER_RUNNING,\r
- * taskSCHEDULER_NOT_STARTED or taskSCHEDULER_SUSPENDED.\r
- */\r
-portBASE_TYPE xTaskGetSchedulerState( void ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * Raises the priority of the mutex holder to that of the calling task should\r
- * the mutex holder have a priority less than the calling task.\r
- */\r
-void vTaskPriorityInherit( xTaskHandle * const pxMutexHolder ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * Set the priority of a task back to its proper priority in the case that it\r
- * inherited a higher priority while it was holding a semaphore.\r
- */\r
-void vTaskPriorityDisinherit( xTaskHandle * const pxMutexHolder ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * Generic version of the task creation function which is in turn called by the\r
- * xTaskCreate() and xTaskCreateRestricted() macros.\r
- */\r
-signed portBASE_TYPE xTaskGenericCreate( pdTASK_CODE pxTaskCode, const signed char * const pcName, unsigned short usStackDepth, void *pvParameters, unsigned portBASE_TYPE uxPriority, xTaskHandle *pxCreatedTask, portSTACK_TYPE *puxStackBuffer, const xMemoryRegion * const xRegions ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * Get the uxTCBNumber assigned to the task referenced by the xTask parameter.\r
- */\r
-unsigned portBASE_TYPE uxTaskGetTaskNumber( xTaskHandle xTask );\r
-\r
-/* \r
- * Set the uxTCBNumber of the task referenced by the xTask parameter to\r
- * ucHandle.\r
- */\r
-void vTaskSetTaskNumber( xTaskHandle xTask, unsigned portBASE_TYPE uxHandle );\r
-\r
-/*\r
- * Return the amount of time, in ticks, that will pass before the kernel will\r
- * next move a task from the Blocked state to the Running state.\r
- */\r
-portTickType xTaskGetExpectedIdleTime( void );\r
-\r
-/*\r
- * If tickless mode is being used, or a low power mode is implemented, then\r
- * the tick interrupt will not execute during idle periods. When this is the\r
- * case, the tick count value maintained by the scheduler needs to be kept up\r
- * to date with the actual execution time by being skipped forward by the by\r
- * a time equal to the idle period.\r
- */\r
-void vTaskStepTick( portTickType xTicksToJump );\r
-\r
-/*\r
- * Returns the number of tick interrupts that have occurred while the scheduler \r
- * has been suspended. The count pending ticks is reset if xResetOnExit is set\r
- * to pdTRUE.\r
- */\r
-unsigned portBASE_TYPE uxTaskPendingTicksGet( portBASE_TYPE xResetOnExit );\r
-\r
-#ifdef __cplusplus\r
-}\r
-#endif\r
-#endif /* TASK_H */\r
-\r
-\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
-\r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
-\r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- http://www.FreeRTOS.org - Documentation, training, latest information,\r
- license and contact details.\r
-\r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell\r
- the code with commercial support, indemnification, and middleware, under\r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under\r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-/* Standard includes. */\r
-#include <stdio.h>\r
-#include <stdlib.h>\r
-#include <string.h>\r
-\r
-/* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE prevents task.h from redefining\r
-all the API functions to use the MPU wrappers. That should only be done when\r
-task.h is included from an application file. */\r
-#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE\r
-\r
-/* FreeRTOS includes. */\r
-#include "FreeRTOS.h"\r
-#include "task.h"\r
-#include "timers.h"\r
-#include "StackMacros.h"\r
-\r
-#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE\r
-\r
-/*\r
- * Defines the size, in words, of the stack allocated to the idle task.\r
- */\r
-#define tskIDLE_STACK_SIZE configMINIMAL_STACK_SIZE\r
-\r
-/*\r
- * Task control block. A task control block (TCB) is allocated for each task,\r
- * and stores task state information, including a pointer to the task's context\r
- * (the task's run time environment, including register values)\r
- */\r
-typedef struct tskTaskControlBlock\r
-{\r
- volatile portSTACK_TYPE *pxTopOfStack; /*< Points to the location of the last item placed on the tasks stack. THIS MUST BE THE FIRST MEMBER OF THE TCB STRUCT. */\r
-\r
- #if ( portUSING_MPU_WRAPPERS == 1 )\r
- xMPU_SETTINGS xMPUSettings; /*< The MPU settings are defined as part of the port layer. THIS MUST BE THE SECOND MEMBER OF THE TCB STRUCT. */\r
- #endif\r
-\r
- xListItem xGenericListItem; /*< The list that the state list item of a task is reference from denotes the state of that task (Ready, Blocked, Suspended ). */\r
- xListItem xEventListItem; /*< Used to reference a task from an event list. */\r
- unsigned portBASE_TYPE uxPriority; /*< The priority of the task. 0 is the lowest priority. */\r
- portSTACK_TYPE *pxStack; /*< Points to the start of the stack. */\r
- signed char pcTaskName[ configMAX_TASK_NAME_LEN ];/*< Descriptive name given to the task when created. Facilitates debugging only. */\r
-\r
- #if ( portSTACK_GROWTH > 0 )\r
- portSTACK_TYPE *pxEndOfStack; /*< Points to the end of the stack on architectures where the stack grows up from low memory. */\r
- #endif\r
-\r
- #if ( portCRITICAL_NESTING_IN_TCB == 1 )\r
- unsigned portBASE_TYPE uxCriticalNesting; /*< Holds the critical section nesting depth for ports that do not maintain their own count in the port layer. */\r
- #endif\r
-\r
- #if ( configUSE_TRACE_FACILITY == 1 )\r
- unsigned portBASE_TYPE uxTCBNumber; /*< Stores a number that increments each time a TCB is created. It allows debuggers to determine when a task has been deleted and then recreated. */\r
- unsigned portBASE_TYPE uxTaskNumber; /*< Stores a number specifically for use by third party trace code. */\r
- #endif\r
-\r
- #if ( configUSE_MUTEXES == 1 )\r
- unsigned portBASE_TYPE uxBasePriority; /*< The priority last assigned to the task - used by the priority inheritance mechanism. */\r
- #endif\r
-\r
- #if ( configUSE_APPLICATION_TASK_TAG == 1 )\r
- pdTASK_HOOK_CODE pxTaskTag;\r
- #endif\r
-\r
- #if ( configGENERATE_RUN_TIME_STATS == 1 )\r
- unsigned long ulRunTimeCounter; /*< Stores the amount of time the task has spent in the Running state. */\r
- #endif\r
-\r
-} tskTCB;\r
-\r
-\r
-/*\r
- * Some kernel aware debuggers require the data the debugger needs access to to\r
- * be global, rather than file scope.\r
- */\r
-#ifdef portREMOVE_STATIC_QUALIFIER\r
- #define static\r
-#endif\r
-\r
-/*lint -e956 */\r
-PRIVILEGED_DATA tskTCB * volatile pxCurrentTCB = NULL;\r
-\r
-/* Lists for ready and blocked tasks. --------------------*/\r
-PRIVILEGED_DATA static xList pxReadyTasksLists[ configMAX_PRIORITIES ]; /*< Prioritised ready tasks. */\r
-PRIVILEGED_DATA static xList xDelayedTaskList1; /*< Delayed tasks. */\r
-PRIVILEGED_DATA static xList xDelayedTaskList2; /*< Delayed tasks (two lists are used - one for delays that have overflowed the current tick count. */\r
-PRIVILEGED_DATA static xList * volatile pxDelayedTaskList ; /*< Points to the delayed task list currently being used. */\r
-PRIVILEGED_DATA static xList * volatile pxOverflowDelayedTaskList; /*< Points to the delayed task list currently being used to hold tasks that have overflowed the current tick count. */\r
-PRIVILEGED_DATA static xList xPendingReadyList; /*< Tasks that have been readied while the scheduler was suspended. They will be moved to the ready queue when the scheduler is resumed. */\r
-\r
-#if ( INCLUDE_vTaskDelete == 1 )\r
-\r
- PRIVILEGED_DATA static xList xTasksWaitingTermination; /*< Tasks that have been deleted - but the their memory not yet freed. */\r
- PRIVILEGED_DATA static volatile unsigned portBASE_TYPE uxTasksDeleted = ( unsigned portBASE_TYPE ) 0U;\r
-\r
-#endif\r
-\r
-#if ( INCLUDE_vTaskSuspend == 1 )\r
-\r
- PRIVILEGED_DATA static xList xSuspendedTaskList; /*< Tasks that are currently suspended. */\r
-\r
-#endif\r
-\r
-#if ( INCLUDE_xTaskGetIdleTaskHandle == 1 )\r
-\r
- PRIVILEGED_DATA static xTaskHandle xIdleTaskHandle = NULL; /*< Holds the handle of the idle task. The idle task is created automatically when the scheduler is started. */\r
-\r
-#endif\r
-\r
-/* File private variables. --------------------------------*/\r
-PRIVILEGED_DATA static volatile unsigned portBASE_TYPE uxCurrentNumberOfTasks = ( unsigned portBASE_TYPE ) 0U;\r
-PRIVILEGED_DATA static volatile portTickType xTickCount = ( portTickType ) 0U;\r
-PRIVILEGED_DATA static unsigned portBASE_TYPE uxTopUsedPriority = tskIDLE_PRIORITY;\r
-PRIVILEGED_DATA static volatile unsigned portBASE_TYPE uxTopReadyPriority = tskIDLE_PRIORITY;\r
-PRIVILEGED_DATA static volatile signed portBASE_TYPE xSchedulerRunning = pdFALSE;\r
-PRIVILEGED_DATA static volatile unsigned portBASE_TYPE uxSchedulerSuspended = ( unsigned portBASE_TYPE ) pdFALSE;\r
-PRIVILEGED_DATA static volatile unsigned portBASE_TYPE uxMissedTicks = ( unsigned portBASE_TYPE ) 0U;\r
-PRIVILEGED_DATA static volatile portBASE_TYPE xMissedYield = ( portBASE_TYPE ) pdFALSE;\r
-PRIVILEGED_DATA static volatile portBASE_TYPE xNumOfOverflows = ( portBASE_TYPE ) 0;\r
-PRIVILEGED_DATA static unsigned portBASE_TYPE uxTaskNumber = ( unsigned portBASE_TYPE ) 0U;\r
-PRIVILEGED_DATA static volatile portTickType xNextTaskUnblockTime = ( portTickType ) portMAX_DELAY;\r
-\r
-#if ( configGENERATE_RUN_TIME_STATS == 1 )\r
-\r
- PRIVILEGED_DATA static char pcStatsString[ 50 ] ;\r
- PRIVILEGED_DATA static unsigned long ulTaskSwitchedInTime = 0UL; /*< Holds the value of a timer/counter the last time a task was switched in. */\r
- static void prvGenerateRunTimeStatsForTasksInList( const signed char *pcWriteBuffer, xList *pxList, unsigned long ulTotalRunTime ) PRIVILEGED_FUNCTION;\r
-\r
-#endif\r
-\r
-/* Debugging and trace facilities private variables and macros. ------------*/\r
-\r
-/*\r
- * The value used to fill the stack of a task when the task is created. This\r
- * is used purely for checking the high water mark for tasks.\r
- */\r
-#define tskSTACK_FILL_BYTE ( 0xa5U )\r
-\r
-/*\r
- * Macros used by vListTask to indicate which state a task is in.\r
- */\r
-#define tskBLOCKED_CHAR ( ( signed char ) 'B' )\r
-#define tskREADY_CHAR ( ( signed char ) 'R' )\r
-#define tskDELETED_CHAR ( ( signed char ) 'D' )\r
-#define tskSUSPENDED_CHAR ( ( signed char ) 'S' )\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-#if configUSE_PORT_OPTIMISED_TASK_SELECTION == 0\r
-\r
- /* If configUSE_PORT_OPTIMISED_TASK_SELECTION is 0 then task selection is\r
- performed in a generic way that is not optimised to any particular\r
- microcontroller architecture. */\r
-\r
- /* uxTopReadyPriority holds the priority of the highest priority ready\r
- state task. */\r
- #define taskRECORD_READY_PRIORITY( uxPriority ) \\r
- { \\r
- if( ( uxPriority ) > uxTopReadyPriority ) \\r
- { \\r
- uxTopReadyPriority = ( uxPriority ); \\r
- } \\r
- } /* taskRECORD_READY_PRIORITY */\r
-\r
- /*-----------------------------------------------------------*/\r
-\r
- #define taskSELECT_HIGHEST_PRIORITY_TASK() \\r
- { \\r
- /* Find the highest priority queue that contains ready tasks. */ \\r
- while( listLIST_IS_EMPTY( &( pxReadyTasksLists[ uxTopReadyPriority ] ) ) ) \\r
- { \\r
- configASSERT( uxTopReadyPriority ); \\r
- --uxTopReadyPriority; \\r
- } \\r
- \\r
- /* listGET_OWNER_OF_NEXT_ENTRY indexes through the list, so the tasks of \\r
- the same priority get an equal share of the processor time. */ \\r
- listGET_OWNER_OF_NEXT_ENTRY( pxCurrentTCB, &( pxReadyTasksLists[ uxTopReadyPriority ] ) ); \\r
- } /* taskSELECT_HIGHEST_PRIORITY_TASK */\r
-\r
- /*-----------------------------------------------------------*/\r
-\r
- /* Define away taskRESET_READY_PRIORITY() and portRESET_READY_PRIORITY() as\r
- they are only required when a port optimised method of task selection is\r
- being used. */\r
- #define taskRESET_READY_PRIORITY( uxPriority )\r
- #define portRESET_READY_PRIORITY( uxPriority, uxTopReadyPriority )\r
-\r
-#else /* configUSE_PORT_OPTIMISED_TASK_SELECTION */\r
-\r
- /* If configUSE_PORT_OPTIMISED_TASK_SELECTION is 1 then task selection is\r
- performed in a way that is tailored to the particular microcontroller\r
- architecture being used. */\r
-\r
- /* A port optimised version is provided. Call the port defined macros. */\r
- #define taskRECORD_READY_PRIORITY( uxPriority ) portRECORD_READY_PRIORITY( uxPriority, uxTopReadyPriority )\r
-\r
- /*-----------------------------------------------------------*/\r
-\r
- #define taskSELECT_HIGHEST_PRIORITY_TASK() \\r
- { \\r
- unsigned portBASE_TYPE uxTopPriority; \\r
- \\r
- /* Find the highest priority queue that contains ready tasks. */ \\r
- portGET_HIGHEST_PRIORITY( uxTopPriority, uxTopReadyPriority ); \\r
- configASSERT( listCURRENT_LIST_LENGTH( &( pxReadyTasksLists[ uxTopPriority ] ) ) > 0 ); \\r
- listGET_OWNER_OF_NEXT_ENTRY( pxCurrentTCB, &( pxReadyTasksLists[ uxTopPriority ] ) ); \\r
- } /* taskSELECT_HIGHEST_PRIORITY_TASK() */\r
-\r
- /*-----------------------------------------------------------*/\r
-\r
- /* A port optimised version is provided, call it only if the TCB being reset\r
- is being referenced from a ready list. If it is referenced from a delayed\r
- or suspended list then it won't be in a ready list. */\r
- #define taskRESET_READY_PRIORITY( uxPriority ) \\r
- { \\r
- if( listCURRENT_LIST_LENGTH( &( pxReadyTasksLists[ ( uxPriority ) ] ) ) == 0 ) \\r
- { \\r
- portRESET_READY_PRIORITY( ( uxPriority ), ( uxTopReadyPriority ) ); \\r
- } \\r
- }\r
-\r
-#endif /* configUSE_PORT_OPTIMISED_TASK_SELECTION */\r
-\r
-/*\r
- * Place the task represented by pxTCB into the appropriate ready queue for\r
- * the task. It is inserted at the end of the list. One quirk of this is\r
- * that if the task being inserted is at the same priority as the currently\r
- * executing task, then it will only be rescheduled after the currently\r
- * executing task has been rescheduled.\r
- */\r
-#define prvAddTaskToReadyQueue( pxTCB ) \\r
- traceMOVED_TASK_TO_READY_STATE( pxTCB ) \\r
- taskRECORD_READY_PRIORITY( ( pxTCB )->uxPriority ); \\r
- vListInsertEnd( ( xList * ) &( pxReadyTasksLists[ ( pxTCB )->uxPriority ] ), &( ( pxTCB )->xGenericListItem ) )\r
-/*-----------------------------------------------------------*/\r
-\r
-/*\r
- * Macro that looks at the list of tasks that are currently delayed to see if\r
- * any require waking.\r
- *\r
- * Tasks are stored in the queue in the order of their wake time - meaning\r
- * once one tasks has been found whose timer has not expired we need not look\r
- * any further down the list.\r
- */\r
-#define prvCheckDelayedTasks() \\r
-{ \\r
-portTickType xItemValue; \\r
- \\r
- /* Is the tick count greater than or equal to the wake time of the first \\r
- task referenced from the delayed tasks list? */ \\r
- if( xTickCount >= xNextTaskUnblockTime ) \\r
- { \\r
- for( ;; ) \\r
- { \\r
- if( listLIST_IS_EMPTY( pxDelayedTaskList ) != pdFALSE ) \\r
- { \\r
- /* The delayed list is empty. Set xNextTaskUnblockTime to the \\r
- maximum possible value so it is extremely unlikely that the \\r
- if( xTickCount >= xNextTaskUnblockTime ) test will pass next \\r
- time through. */ \\r
- xNextTaskUnblockTime = portMAX_DELAY; \\r
- break; \\r
- } \\r
- else \\r
- { \\r
- /* The delayed list is not empty, get the value of the item at \\r
- the head of the delayed list. This is the time at which the \\r
- task at the head of the delayed list should be removed from \\r
- the Blocked state. */ \\r
- pxTCB = ( tskTCB * ) listGET_OWNER_OF_HEAD_ENTRY( pxDelayedTaskList ); \\r
- xItemValue = listGET_LIST_ITEM_VALUE( &( pxTCB->xGenericListItem ) ); \\r
- \\r
- if( xTickCount < xItemValue ) \\r
- { \\r
- /* It is not time to unblock this item yet, but the item \\r
- value is the time at which the task at the head of the \\r
- blocked list should be removed from the Blocked state - \\r
- so record the item value in xNextTaskUnblockTime. */ \\r
- xNextTaskUnblockTime = xItemValue; \\r
- break; \\r
- } \\r
- \\r
- /* It is time to remove the item from the Blocked state. */ \\r
- uxListRemove( &( pxTCB->xGenericListItem ) ); \\r
- \\r
- /* Is the task waiting on an event also? */ \\r
- if( pxTCB->xEventListItem.pvContainer != NULL ) \\r
- { \\r
- uxListRemove( &( pxTCB->xEventListItem ) ); \\r
- } \\r
- prvAddTaskToReadyQueue( pxTCB ); \\r
- } \\r
- } \\r
- } \\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-/*\r
- * Several functions take an xTaskHandle parameter that can optionally be NULL,\r
- * where NULL is used to indicate that the handle of the currently executing\r
- * task should be used in place of the parameter. This macro simply checks to\r
- * see if the parameter is NULL and returns a pointer to the appropriate TCB.\r
- */\r
-#define prvGetTCBFromHandle( pxHandle ) ( ( ( pxHandle ) == NULL ) ? ( tskTCB * ) pxCurrentTCB : ( tskTCB * ) ( pxHandle ) )\r
-\r
-/* Callback function prototypes. --------------------------*/\r
-extern void vApplicationStackOverflowHook( xTaskHandle pxTask, signed char *pcTaskName );\r
-extern void vApplicationTickHook( void );\r
-\r
-/* File private functions. --------------------------------*/\r
-\r
-/*\r
- * Utility to ready a TCB for a given task. Mainly just copies the parameters\r
- * into the TCB structure.\r
- */\r
-static void prvInitialiseTCBVariables( tskTCB *pxTCB, const signed char * const pcName, unsigned portBASE_TYPE uxPriority, const xMemoryRegion * const xRegions, unsigned short usStackDepth ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * Utility to ready all the lists used by the scheduler. This is called\r
- * automatically upon the creation of the first task.\r
- */\r
-static void prvInitialiseTaskLists( void ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * The idle task, which as all tasks is implemented as a never ending loop.\r
- * The idle task is automatically created and added to the ready lists upon\r
- * creation of the first user task.\r
- *\r
- * The portTASK_FUNCTION_PROTO() macro is used to allow port/compiler specific\r
- * language extensions. The equivalent prototype for this function is:\r
- *\r
- * void prvIdleTask( void *pvParameters );\r
- *\r
- */\r
-static portTASK_FUNCTION_PROTO( prvIdleTask, pvParameters );\r
-\r
-/*\r
- * Utility to free all memory allocated by the scheduler to hold a TCB,\r
- * including the stack pointed to by the TCB.\r
- *\r
- * This does not free memory allocated by the task itself (i.e. memory\r
- * allocated by calls to pvPortMalloc from within the tasks application code).\r
- */\r
-#if ( INCLUDE_vTaskDelete == 1 )\r
-\r
- static void prvDeleteTCB( tskTCB *pxTCB ) PRIVILEGED_FUNCTION;\r
-\r
-#endif\r
-\r
-/*\r
- * Used only by the idle task. This checks to see if anything has been placed\r
- * in the list of tasks waiting to be deleted. If so the task is cleaned up\r
- * and its TCB deleted.\r
- */\r
-static void prvCheckTasksWaitingTermination( void ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * The currently executing task is entering the Blocked state. Add the task to\r
- * either the current or the overflow delayed task list.\r
- */\r
-static void prvAddCurrentTaskToDelayedList( portTickType xTimeToWake ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * Allocates memory from the heap for a TCB and associated stack. Checks the\r
- * allocation was successful.\r
- */\r
-static tskTCB *prvAllocateTCBAndStack( unsigned short usStackDepth, portSTACK_TYPE *puxStackBuffer ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * Called from vTaskList. vListTasks details all the tasks currently under\r
- * control of the scheduler. The tasks may be in one of a number of lists.\r
- * prvListTaskWithinSingleList accepts a list and details the tasks from\r
- * within just that list.\r
- *\r
- * THIS FUNCTION IS INTENDED FOR DEBUGGING ONLY, AND SHOULD NOT BE CALLED FROM\r
- * NORMAL APPLICATION CODE.\r
- */\r
-#if ( configUSE_TRACE_FACILITY == 1 )\r
-\r
- static void prvListTaskWithinSingleList( const signed char *pcWriteBuffer, xList *pxList, signed char cStatus ) PRIVILEGED_FUNCTION;\r
-\r
-#endif\r
-\r
-/*\r
- * When a task is created, the stack of the task is filled with a known value.\r
- * This function determines the 'high water mark' of the task stack by\r
- * determining how much of the stack remains at the original preset value.\r
- */\r
-#if ( ( configUSE_TRACE_FACILITY == 1 ) || ( INCLUDE_uxTaskGetStackHighWaterMark == 1 ) )\r
-\r
- static unsigned short usTaskCheckFreeStackSpace( const unsigned char * pucStackByte ) PRIVILEGED_FUNCTION;\r
-\r
-#endif\r
-\r
-\r
-/*lint +e956 */\r
-\r
-\r
-\r
-/*-----------------------------------------------------------\r
- * TASK CREATION API documented in task.h\r
- *----------------------------------------------------------*/\r
-\r
-signed portBASE_TYPE xTaskGenericCreate( pdTASK_CODE pxTaskCode, const signed char * const pcName, unsigned short usStackDepth, void *pvParameters, unsigned portBASE_TYPE uxPriority, xTaskHandle *pxCreatedTask, portSTACK_TYPE *puxStackBuffer, const xMemoryRegion * const xRegions )\r
-{\r
-signed portBASE_TYPE xReturn;\r
-tskTCB * pxNewTCB;\r
-\r
- configASSERT( pxTaskCode );\r
- configASSERT( ( ( uxPriority & ( ~portPRIVILEGE_BIT ) ) < configMAX_PRIORITIES ) );\r
-\r
- /* Allocate the memory required by the TCB and stack for the new task,\r
- checking that the allocation was successful. */\r
- pxNewTCB = prvAllocateTCBAndStack( usStackDepth, puxStackBuffer );\r
-\r
- if( pxNewTCB != NULL )\r
- {\r
- portSTACK_TYPE *pxTopOfStack;\r
-\r
- #if( portUSING_MPU_WRAPPERS == 1 )\r
- /* Should the task be created in privileged mode? */\r
- portBASE_TYPE xRunPrivileged;\r
- if( ( uxPriority & portPRIVILEGE_BIT ) != 0U )\r
- {\r
- xRunPrivileged = pdTRUE;\r
- }\r
- else\r
- {\r
- xRunPrivileged = pdFALSE;\r
- }\r
- uxPriority &= ~portPRIVILEGE_BIT;\r
- #endif /* portUSING_MPU_WRAPPERS == 1 */\r
-\r
- /* Calculate the top of stack address. This depends on whether the\r
- stack grows from high memory to low (as per the 80x86) or visa versa.\r
- portSTACK_GROWTH is used to make the result positive or negative as\r
- required by the port. */\r
- #if( portSTACK_GROWTH < 0 )\r
- {\r
- pxTopOfStack = pxNewTCB->pxStack + ( usStackDepth - ( unsigned short ) 1 );\r
- pxTopOfStack = ( portSTACK_TYPE * ) ( ( ( portPOINTER_SIZE_TYPE ) pxTopOfStack ) & ( ( portPOINTER_SIZE_TYPE ) ~portBYTE_ALIGNMENT_MASK ) );\r
-\r
- /* Check the alignment of the calculated top of stack is correct. */\r
- configASSERT( ( ( ( unsigned long ) pxTopOfStack & ( unsigned long ) portBYTE_ALIGNMENT_MASK ) == 0UL ) );\r
- }\r
- #else\r
- {\r
- pxTopOfStack = pxNewTCB->pxStack;\r
-\r
- /* Check the alignment of the stack buffer is correct. */\r
- configASSERT( ( ( ( unsigned long ) pxNewTCB->pxStack & ( unsigned long ) portBYTE_ALIGNMENT_MASK ) == 0UL ) );\r
-\r
- /* If we want to use stack checking on architectures that use\r
- a positive stack growth direction then we also need to store the\r
- other extreme of the stack space. */\r
- pxNewTCB->pxEndOfStack = pxNewTCB->pxStack + ( usStackDepth - 1 );\r
- }\r
- #endif\r
-\r
- /* Setup the newly allocated TCB with the initial state of the task. */\r
- prvInitialiseTCBVariables( pxNewTCB, pcName, uxPriority, xRegions, usStackDepth );\r
-\r
- /* Initialize the TCB stack to look as if the task was already running,\r
- but had been interrupted by the scheduler. The return address is set\r
- to the start of the task function. Once the stack has been initialised\r
- the top of stack variable is updated. */\r
- #if( portUSING_MPU_WRAPPERS == 1 )\r
- {\r
- pxNewTCB->pxTopOfStack = pxPortInitialiseStack( pxTopOfStack, pxTaskCode, pvParameters, xRunPrivileged );\r
- }\r
- #else\r
- {\r
- pxNewTCB->pxTopOfStack = pxPortInitialiseStack( pxTopOfStack, pxTaskCode, pvParameters );\r
- }\r
- #endif\r
-\r
- /* Check the alignment of the initialised stack. */\r
- portALIGNMENT_ASSERT_pxCurrentTCB( ( ( ( unsigned long ) pxNewTCB->pxTopOfStack & ( unsigned long ) portBYTE_ALIGNMENT_MASK ) == 0UL ) );\r
-\r
- if( ( void * ) pxCreatedTask != NULL )\r
- {\r
- /* Pass the TCB out - in an anonymous way. The calling function/\r
- task can use this as a handle to delete the task later if\r
- required.*/\r
- *pxCreatedTask = ( xTaskHandle ) pxNewTCB;\r
- }\r
-\r
- /* We are going to manipulate the task queues to add this task to a\r
- ready list, so must make sure no interrupts occur. */\r
- taskENTER_CRITICAL();\r
- {\r
- uxCurrentNumberOfTasks++;\r
- if( pxCurrentTCB == NULL )\r
- {\r
- /* There are no other tasks, or all the other tasks are in\r
- the suspended state - make this the current task. */\r
- pxCurrentTCB = pxNewTCB;\r
-\r
- if( uxCurrentNumberOfTasks == ( unsigned portBASE_TYPE ) 1 )\r
- {\r
- /* This is the first task to be created so do the preliminary\r
- initialisation required. We will not recover if this call\r
- fails, but we will report the failure. */\r
- prvInitialiseTaskLists();\r
- }\r
- }\r
- else\r
- {\r
- /* If the scheduler is not already running, make this task the\r
- current task if it is the highest priority task to be created\r
- so far. */\r
- if( xSchedulerRunning == pdFALSE )\r
- {\r
- if( pxCurrentTCB->uxPriority <= uxPriority )\r
- {\r
- pxCurrentTCB = pxNewTCB;\r
- }\r
- }\r
- }\r
-\r
- /* Remember the top priority to make context switching faster. Use\r
- the priority in pxNewTCB as this has been capped to a valid value. */\r
- if( pxNewTCB->uxPriority > uxTopUsedPriority )\r
- {\r
- uxTopUsedPriority = pxNewTCB->uxPriority;\r
- }\r
-\r
- #if ( configUSE_TRACE_FACILITY == 1 )\r
- {\r
- /* Add a counter into the TCB for tracing only. */\r
- pxNewTCB->uxTCBNumber = uxTaskNumber;\r
- }\r
- #endif\r
- uxTaskNumber++;\r
-\r
- prvAddTaskToReadyQueue( pxNewTCB );\r
-\r
- xReturn = pdPASS;\r
- portSETUP_TCB( pxNewTCB );\r
- traceTASK_CREATE( pxNewTCB );\r
- }\r
- taskEXIT_CRITICAL();\r
- }\r
- else\r
- {\r
- xReturn = errCOULD_NOT_ALLOCATE_REQUIRED_MEMORY;\r
- traceTASK_CREATE_FAILED();\r
- }\r
-\r
- if( xReturn == pdPASS )\r
- {\r
- if( xSchedulerRunning != pdFALSE )\r
- {\r
- /* If the created task is of a higher priority than the current task\r
- then it should run now. */\r
- if( pxCurrentTCB->uxPriority < uxPriority )\r
- {\r
- portYIELD_WITHIN_API();\r
- }\r
- }\r
- }\r
-\r
- return xReturn;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( INCLUDE_vTaskDelete == 1 )\r
-\r
- void vTaskDelete( xTaskHandle pxTaskToDelete )\r
- {\r
- tskTCB *pxTCB;\r
-\r
- taskENTER_CRITICAL();\r
- {\r
- /* Ensure a yield is performed if the current task is being\r
- deleted. */\r
- if( pxTaskToDelete == pxCurrentTCB )\r
- {\r
- pxTaskToDelete = NULL;\r
- }\r
-\r
- /* If null is passed in here then we are deleting ourselves. */\r
- pxTCB = prvGetTCBFromHandle( pxTaskToDelete );\r
-\r
- /* Remove task from the ready list and place in the termination list.\r
- This will stop the task from be scheduled. The idle task will check\r
- the termination list and free up any memory allocated by the\r
- scheduler for the TCB and stack. */\r
- if( uxListRemove( ( xListItem * ) &( pxTCB->xGenericListItem ) ) == 0 )\r
- {\r
- taskRESET_READY_PRIORITY( pxTCB->uxPriority );\r
- }\r
-\r
- /* Is the task waiting on an event also? */\r
- if( pxTCB->xEventListItem.pvContainer != NULL )\r
- {\r
- uxListRemove( &( pxTCB->xEventListItem ) );\r
- }\r
-\r
- vListInsertEnd( ( xList * ) &xTasksWaitingTermination, &( pxTCB->xGenericListItem ) );\r
-\r
- /* Increment the ucTasksDeleted variable so the idle task knows\r
- there is a task that has been deleted and that it should therefore\r
- check the xTasksWaitingTermination list. */\r
- ++uxTasksDeleted;\r
-\r
- /* Increment the uxTaskNumberVariable also so kernel aware debuggers\r
- can detect that the task lists need re-generating. */\r
- uxTaskNumber++;\r
-\r
- traceTASK_DELETE( pxTCB );\r
- }\r
- taskEXIT_CRITICAL();\r
-\r
- /* Force a reschedule if we have just deleted the current task. */\r
- if( xSchedulerRunning != pdFALSE )\r
- {\r
- if( ( void * ) pxTaskToDelete == NULL )\r
- {\r
- portYIELD_WITHIN_API();\r
- }\r
- }\r
- }\r
-\r
-#endif\r
-\r
-\r
-\r
-\r
-\r
-\r
-/*-----------------------------------------------------------\r
- * TASK CONTROL API documented in task.h\r
- *----------------------------------------------------------*/\r
-\r
-#if ( INCLUDE_vTaskDelayUntil == 1 )\r
-\r
- void vTaskDelayUntil( portTickType * const pxPreviousWakeTime, portTickType xTimeIncrement )\r
- {\r
- portTickType xTimeToWake;\r
- portBASE_TYPE xAlreadyYielded, xShouldDelay = pdFALSE;\r
-\r
- configASSERT( pxPreviousWakeTime );\r
- configASSERT( ( xTimeIncrement > 0U ) );\r
-\r
- vTaskSuspendAll();\r
- {\r
- /* Generate the tick time at which the task wants to wake. */\r
- xTimeToWake = *pxPreviousWakeTime + xTimeIncrement;\r
-\r
- if( xTickCount < *pxPreviousWakeTime )\r
- {\r
- /* The tick count has overflowed since this function was\r
- lasted called. In this case the only time we should ever\r
- actually delay is if the wake time has also overflowed,\r
- and the wake time is greater than the tick time. When this\r
- is the case it is as if neither time had overflowed. */\r
- if( ( xTimeToWake < *pxPreviousWakeTime ) && ( xTimeToWake > xTickCount ) )\r
- {\r
- xShouldDelay = pdTRUE;\r
- }\r
- }\r
- else\r
- {\r
- /* The tick time has not overflowed. In this case we will\r
- delay if either the wake time has overflowed, and/or the\r
- tick time is less than the wake time. */\r
- if( ( xTimeToWake < *pxPreviousWakeTime ) || ( xTimeToWake > xTickCount ) )\r
- {\r
- xShouldDelay = pdTRUE;\r
- }\r
- }\r
-\r
- /* Update the wake time ready for the next call. */\r
- *pxPreviousWakeTime = xTimeToWake;\r
-\r
- if( xShouldDelay != pdFALSE )\r
- {\r
- traceTASK_DELAY_UNTIL();\r
-\r
- /* We must remove ourselves from the ready list before adding\r
- ourselves to the blocked list as the same list item is used for\r
- both lists. */\r
- if( uxListRemove( ( xListItem * ) &( pxCurrentTCB->xGenericListItem ) ) == 0 )\r
- {\r
- /* The current task must be in a ready list, so there is\r
- no need to check, and the port reset macro can be called\r
- directly. */\r
- portRESET_READY_PRIORITY( pxCurrentTCB->uxPriority, uxTopReadyPriority );\r
- }\r
-\r
- prvAddCurrentTaskToDelayedList( xTimeToWake );\r
- }\r
- }\r
- xAlreadyYielded = xTaskResumeAll();\r
-\r
- /* Force a reschedule if xTaskResumeAll has not already done so, we may\r
- have put ourselves to sleep. */\r
- if( xAlreadyYielded == pdFALSE )\r
- {\r
- portYIELD_WITHIN_API();\r
- }\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( INCLUDE_vTaskDelay == 1 )\r
-\r
- void vTaskDelay( portTickType xTicksToDelay )\r
- {\r
- portTickType xTimeToWake;\r
- signed portBASE_TYPE xAlreadyYielded = pdFALSE;\r
-\r
- /* A delay time of zero just forces a reschedule. */\r
- if( xTicksToDelay > ( portTickType ) 0U )\r
- {\r
- vTaskSuspendAll();\r
- {\r
- traceTASK_DELAY();\r
-\r
- /* A task that is removed from the event list while the\r
- scheduler is suspended will not get placed in the ready\r
- list or removed from the blocked list until the scheduler\r
- is resumed.\r
-\r
- This task cannot be in an event list as it is the currently\r
- executing task. */\r
-\r
- /* Calculate the time to wake - this may overflow but this is\r
- not a problem. */\r
- xTimeToWake = xTickCount + xTicksToDelay;\r
-\r
- /* We must remove ourselves from the ready list before adding\r
- ourselves to the blocked list as the same list item is used for\r
- both lists. */\r
- if( uxListRemove( ( xListItem * ) &( pxCurrentTCB->xGenericListItem ) ) == 0 )\r
- {\r
- /* The current task must be in a ready list, so there is\r
- no need to check, and the port reset macro can be called\r
- directly. */\r
- portRESET_READY_PRIORITY( pxCurrentTCB->uxPriority, uxTopReadyPriority );\r
- }\r
- prvAddCurrentTaskToDelayedList( xTimeToWake );\r
- }\r
- xAlreadyYielded = xTaskResumeAll();\r
- }\r
-\r
- /* Force a reschedule if xTaskResumeAll has not already done so, we may\r
- have put ourselves to sleep. */\r
- if( xAlreadyYielded == pdFALSE )\r
- {\r
- portYIELD_WITHIN_API();\r
- }\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( INCLUDE_eTaskStateGet == 1 )\r
-\r
- eTaskState eTaskStateGet( xTaskHandle pxTask )\r
- {\r
- eTaskState eReturn;\r
- xList *pxStateList;\r
- tskTCB *pxTCB;\r
-\r
- pxTCB = ( tskTCB * ) pxTask;\r
-\r
- if( pxTCB == pxCurrentTCB )\r
- {\r
- /* The task calling this function is querying its own state. */\r
- eReturn = eRunning;\r
- }\r
- else\r
- {\r
- taskENTER_CRITICAL();\r
- {\r
- pxStateList = ( xList * ) listLIST_ITEM_CONTAINER( &( pxTCB->xGenericListItem ) );\r
- }\r
- taskEXIT_CRITICAL();\r
-\r
- if( ( pxStateList == pxDelayedTaskList ) || ( pxStateList == pxOverflowDelayedTaskList ) )\r
- {\r
- /* The task being queried is referenced from one of the Blocked\r
- lists. */\r
- eReturn = eBlocked;\r
- }\r
-\r
- #if ( INCLUDE_vTaskSuspend == 1 )\r
- else if( pxStateList == &xSuspendedTaskList )\r
- {\r
- /* The task being queried is referenced from the suspended\r
- list. */\r
- eReturn = eSuspended;\r
- }\r
- #endif\r
-\r
- #if ( INCLUDE_vTaskDelete == 1 )\r
- else if( pxStateList == &xTasksWaitingTermination )\r
- {\r
- /* The task being queried is referenced from the deleted\r
- tasks list. */\r
- eReturn = eDeleted;\r
- }\r
- #endif\r
-\r
- else\r
- {\r
- /* If the task is not in any other state, it must be in the\r
- Ready (including pending ready) state. */\r
- eReturn = eReady;\r
- }\r
- }\r
-\r
- return eReturn;\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( INCLUDE_uxTaskPriorityGet == 1 )\r
-\r
- unsigned portBASE_TYPE uxTaskPriorityGet( xTaskHandle pxTask )\r
- {\r
- tskTCB *pxTCB;\r
- unsigned portBASE_TYPE uxReturn;\r
-\r
- taskENTER_CRITICAL();\r
- {\r
- /* If null is passed in here then we are changing the\r
- priority of the calling function. */\r
- pxTCB = prvGetTCBFromHandle( pxTask );\r
- uxReturn = pxTCB->uxPriority;\r
- }\r
- taskEXIT_CRITICAL();\r
-\r
- return uxReturn;\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( INCLUDE_vTaskPrioritySet == 1 )\r
-\r
- void vTaskPrioritySet( xTaskHandle pxTask, unsigned portBASE_TYPE uxNewPriority )\r
- {\r
- tskTCB *pxTCB;\r
- unsigned portBASE_TYPE uxCurrentPriority, uxPriorityUsedOnEntry;\r
- portBASE_TYPE xYieldRequired = pdFALSE;\r
-\r
- configASSERT( ( uxNewPriority < configMAX_PRIORITIES ) );\r
-\r
- /* Ensure the new priority is valid. */\r
- if( uxNewPriority >= configMAX_PRIORITIES )\r
- {\r
- uxNewPriority = configMAX_PRIORITIES - ( unsigned portBASE_TYPE ) 1U;\r
- }\r
-\r
- taskENTER_CRITICAL();\r
- {\r
- if( pxTask == pxCurrentTCB )\r
- {\r
- pxTask = NULL;\r
- }\r
-\r
- /* If null is passed in here then we are changing the\r
- priority of the calling function. */\r
- pxTCB = prvGetTCBFromHandle( pxTask );\r
-\r
- traceTASK_PRIORITY_SET( pxTCB, uxNewPriority );\r
-\r
- #if ( configUSE_MUTEXES == 1 )\r
- {\r
- uxCurrentPriority = pxTCB->uxBasePriority;\r
- }\r
- #else\r
- {\r
- uxCurrentPriority = pxTCB->uxPriority;\r
- }\r
- #endif\r
-\r
- if( uxCurrentPriority != uxNewPriority )\r
- {\r
- /* The priority change may have readied a task of higher\r
- priority than the calling task. */\r
- if( uxNewPriority > uxCurrentPriority )\r
- {\r
- if( pxTask != NULL )\r
- {\r
- /* The priority of another task is being raised. If we\r
- were raising the priority of the currently running task\r
- there would be no need to switch as it must have already\r
- been the highest priority task. */\r
- xYieldRequired = pdTRUE;\r
- }\r
- }\r
- else if( pxTask == NULL )\r
- {\r
- /* Setting our own priority down means there may now be another\r
- task of higher priority that is ready to execute. */\r
- xYieldRequired = pdTRUE;\r
- }\r
-\r
- #if configUSE_PORT_OPTIMISED_TASK_SELECTION == 1\r
- {\r
- /* Remember the ready list the task might be referenced from\r
- before its uxPriority member is changed so the\r
- taskRESET_READY_PRIORITY() macro can function correctly. */\r
- uxPriorityUsedOnEntry = pxTCB->uxPriority;\r
- }\r
- #endif\r
-\r
- #if ( configUSE_MUTEXES == 1 )\r
- {\r
- /* Only change the priority being used if the task is not\r
- currently using an inherited priority. */\r
- if( pxTCB->uxBasePriority == pxTCB->uxPriority )\r
- {\r
- pxTCB->uxPriority = uxNewPriority;\r
- }\r
-\r
- /* The base priority gets set whatever. */\r
- pxTCB->uxBasePriority = uxNewPriority;\r
- }\r
- #else\r
- {\r
- pxTCB->uxPriority = uxNewPriority;\r
- }\r
- #endif\r
-\r
- listSET_LIST_ITEM_VALUE( &( pxTCB->xEventListItem ), ( configMAX_PRIORITIES - ( portTickType ) uxNewPriority ) );\r
-\r
- /* If the task is in the blocked or suspended list we need do\r
- nothing more than change it's priority variable. However, if\r
- the task is in a ready list it needs to be removed and placed\r
- in the queue appropriate to its new priority. */\r
- if( listIS_CONTAINED_WITHIN( &( pxReadyTasksLists[ uxCurrentPriority ] ), &( pxTCB->xGenericListItem ) ) )\r
- {\r
- /* The task is currently in its ready list - remove before adding\r
- it to it's new ready list. As we are in a critical section we\r
- can do this even if the scheduler is suspended. */\r
- if( uxListRemove( ( xListItem * ) &( pxTCB->xGenericListItem ) ) == 0 )\r
- {\r
- taskRESET_READY_PRIORITY( uxPriorityUsedOnEntry );\r
- }\r
- prvAddTaskToReadyQueue( pxTCB );\r
- }\r
-\r
- if( xYieldRequired == pdTRUE )\r
- {\r
- portYIELD_WITHIN_API();\r
- }\r
- }\r
- }\r
- taskEXIT_CRITICAL();\r
-\r
- /* Remove compiler warning about unused parameter when the port\r
- optimised task selection is not being used. */\r
- ( void ) uxPriorityUsedOnEntry;\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( INCLUDE_vTaskSuspend == 1 )\r
-\r
- void vTaskSuspend( xTaskHandle pxTaskToSuspend )\r
- {\r
- tskTCB *pxTCB;\r
-\r
- taskENTER_CRITICAL();\r
- {\r
- /* Ensure a yield is performed if the current task is being\r
- suspended. */\r
- if( pxTaskToSuspend == pxCurrentTCB )\r
- {\r
- pxTaskToSuspend = NULL;\r
- }\r
-\r
- /* If null is passed in here then we are suspending ourselves. */\r
- pxTCB = prvGetTCBFromHandle( pxTaskToSuspend );\r
-\r
- traceTASK_SUSPEND( pxTCB );\r
-\r
- /* Remove task from the ready/delayed list and place in the suspended list. */\r
- if( uxListRemove( ( xListItem * ) &( pxTCB->xGenericListItem ) ) == 0 )\r
- {\r
- taskRESET_READY_PRIORITY( pxTCB->uxPriority );\r
- }\r
-\r
- /* Is the task waiting on an event also? */\r
- if( pxTCB->xEventListItem.pvContainer != NULL )\r
- {\r
- uxListRemove( &( pxTCB->xEventListItem ) );\r
- }\r
-\r
- vListInsertEnd( ( xList * ) &xSuspendedTaskList, &( pxTCB->xGenericListItem ) );\r
- }\r
- taskEXIT_CRITICAL();\r
-\r
- if( ( void * ) pxTaskToSuspend == NULL )\r
- {\r
- if( xSchedulerRunning != pdFALSE )\r
- {\r
- /* We have just suspended the current task. */\r
- portYIELD_WITHIN_API();\r
- }\r
- else\r
- {\r
- /* The scheduler is not running, but the task that was pointed\r
- to by pxCurrentTCB has just been suspended and pxCurrentTCB\r
- must be adjusted to point to a different task. */\r
- if( listCURRENT_LIST_LENGTH( &xSuspendedTaskList ) == uxCurrentNumberOfTasks )\r
- {\r
- /* No other tasks are ready, so set pxCurrentTCB back to\r
- NULL so when the next task is created pxCurrentTCB will\r
- be set to point to it no matter what its relative priority\r
- is. */\r
- pxCurrentTCB = NULL;\r
- }\r
- else\r
- {\r
- vTaskSwitchContext();\r
- }\r
- }\r
- }\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( INCLUDE_vTaskSuspend == 1 )\r
-\r
- signed portBASE_TYPE xTaskIsTaskSuspended( xTaskHandle xTask )\r
- {\r
- portBASE_TYPE xReturn = pdFALSE;\r
- const tskTCB * const pxTCB = ( tskTCB * ) xTask;\r
-\r
- /* It does not make sense to check if the calling task is suspended. */\r
- configASSERT( xTask );\r
-\r
- /* Is the task we are attempting to resume actually in the\r
- suspended list? */\r
- if( listIS_CONTAINED_WITHIN( &xSuspendedTaskList, &( pxTCB->xGenericListItem ) ) != pdFALSE )\r
- {\r
- /* Has the task already been resumed from within an ISR? */\r
- if( listIS_CONTAINED_WITHIN( &xPendingReadyList, &( pxTCB->xEventListItem ) ) != pdTRUE )\r
- {\r
- /* Is it in the suspended list because it is in the\r
- Suspended state? It is possible to be in the suspended\r
- list because it is blocked on a task with no timeout\r
- specified. */\r
- if( listIS_CONTAINED_WITHIN( NULL, &( pxTCB->xEventListItem ) ) == pdTRUE )\r
- {\r
- xReturn = pdTRUE;\r
- }\r
- }\r
- }\r
-\r
- return xReturn;\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( INCLUDE_vTaskSuspend == 1 )\r
-\r
- void vTaskResume( xTaskHandle pxTaskToResume )\r
- {\r
- tskTCB *pxTCB;\r
-\r
- /* It does not make sense to resume the calling task. */\r
- configASSERT( pxTaskToResume );\r
-\r
- /* Remove the task from whichever list it is currently in, and place\r
- it in the ready list. */\r
- pxTCB = ( tskTCB * ) pxTaskToResume;\r
-\r
- /* The parameter cannot be NULL as it is impossible to resume the\r
- currently executing task. */\r
- if( ( pxTCB != NULL ) && ( pxTCB != pxCurrentTCB ) )\r
- {\r
- taskENTER_CRITICAL();\r
- {\r
- if( xTaskIsTaskSuspended( pxTCB ) == pdTRUE )\r
- {\r
- traceTASK_RESUME( pxTCB );\r
-\r
- /* As we are in a critical section we can access the ready\r
- lists even if the scheduler is suspended. */\r
- uxListRemove( &( pxTCB->xGenericListItem ) );\r
- prvAddTaskToReadyQueue( pxTCB );\r
-\r
- /* We may have just resumed a higher priority task. */\r
- if( pxTCB->uxPriority >= pxCurrentTCB->uxPriority )\r
- {\r
- /* This yield may not cause the task just resumed to run, but\r
- will leave the lists in the correct state for the next yield. */\r
- portYIELD_WITHIN_API();\r
- }\r
- }\r
- }\r
- taskEXIT_CRITICAL();\r
- }\r
- }\r
-\r
-#endif\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( ( INCLUDE_xTaskResumeFromISR == 1 ) && ( INCLUDE_vTaskSuspend == 1 ) )\r
-\r
- portBASE_TYPE xTaskResumeFromISR( xTaskHandle pxTaskToResume )\r
- {\r
- portBASE_TYPE xYieldRequired = pdFALSE;\r
- tskTCB *pxTCB;\r
- unsigned portBASE_TYPE uxSavedInterruptStatus;\r
-\r
- configASSERT( pxTaskToResume );\r
-\r
- pxTCB = ( tskTCB * ) pxTaskToResume;\r
-\r
- uxSavedInterruptStatus = portSET_INTERRUPT_MASK_FROM_ISR();\r
- {\r
- if( xTaskIsTaskSuspended( pxTCB ) == pdTRUE )\r
- {\r
- traceTASK_RESUME_FROM_ISR( pxTCB );\r
-\r
- if( uxSchedulerSuspended == ( unsigned portBASE_TYPE ) pdFALSE )\r
- {\r
- xYieldRequired = ( pxTCB->uxPriority >= pxCurrentTCB->uxPriority );\r
- uxListRemove( &( pxTCB->xGenericListItem ) );\r
- prvAddTaskToReadyQueue( pxTCB );\r
- }\r
- else\r
- {\r
- /* We cannot access the delayed or ready lists, so will hold this\r
- task pending until the scheduler is resumed, at which point a\r
- yield will be performed if necessary. */\r
- vListInsertEnd( ( xList * ) &( xPendingReadyList ), &( pxTCB->xEventListItem ) );\r
- }\r
- }\r
- }\r
- portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus );\r
-\r
- return xYieldRequired;\r
- }\r
-\r
-#endif\r
-\r
-\r
-\r
-\r
-/*-----------------------------------------------------------\r
- * PUBLIC SCHEDULER CONTROL documented in task.h\r
- *----------------------------------------------------------*/\r
-\r
-\r
-void vTaskStartScheduler( void )\r
-{\r
-portBASE_TYPE xReturn;\r
-\r
- /* Add the idle task at the lowest priority. */\r
- #if ( INCLUDE_xTaskGetIdleTaskHandle == 1 )\r
- {\r
- /* Create the idle task, storing its handle in xIdleTaskHandle so it can\r
- be returned by the xTaskGetIdleTaskHandle() function. */\r
- xReturn = xTaskCreate( prvIdleTask, ( signed char * ) "IDLE", tskIDLE_STACK_SIZE, ( void * ) NULL, ( tskIDLE_PRIORITY | portPRIVILEGE_BIT ), &xIdleTaskHandle );\r
- }\r
- #else\r
- {\r
- /* Create the idle task without storing its handle. */\r
- xReturn = xTaskCreate( prvIdleTask, ( signed char * ) "IDLE", tskIDLE_STACK_SIZE, ( void * ) NULL, ( tskIDLE_PRIORITY | portPRIVILEGE_BIT ), NULL );\r
- }\r
- #endif\r
-\r
- #if ( configUSE_TIMERS == 1 )\r
- {\r
- if( xReturn == pdPASS )\r
- {\r
- xReturn = xTimerCreateTimerTask();\r
- }\r
- }\r
- #endif\r
-\r
- if( xReturn == pdPASS )\r
- {\r
- /* Interrupts are turned off here, to ensure a tick does not occur\r
- before or during the call to xPortStartScheduler(). The stacks of\r
- the created tasks contain a status word with interrupts switched on\r
- so interrupts will automatically get re-enabled when the first task\r
- starts to run.\r
-\r
- STEPPING THROUGH HERE USING A DEBUGGER CAN CAUSE BIG PROBLEMS IF THE\r
- DEBUGGER ALLOWS INTERRUPTS TO BE PROCESSED. */\r
- portDISABLE_INTERRUPTS();\r
-\r
- xSchedulerRunning = pdTRUE;\r
- xTickCount = ( portTickType ) 0U;\r
-\r
- /* If configGENERATE_RUN_TIME_STATS is defined then the following\r
- macro must be defined to configure the timer/counter used to generate\r
- the run time counter time base. */\r
- portCONFIGURE_TIMER_FOR_RUN_TIME_STATS();\r
-\r
- /* Setting up the timer tick is hardware specific and thus in the\r
- portable interface. */\r
- if( xPortStartScheduler() != pdFALSE )\r
- {\r
- /* Should not reach here as if the scheduler is running the\r
- function will not return. */\r
- }\r
- else\r
- {\r
- /* Should only reach here if a task calls xTaskEndScheduler(). */\r
- }\r
- }\r
-\r
- /* This line will only be reached if the kernel could not be started. */\r
- configASSERT( xReturn );\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-void vTaskEndScheduler( void )\r
-{\r
- /* Stop the scheduler interrupts and call the portable scheduler end\r
- routine so the original ISRs can be restored if necessary. The port\r
- layer must ensure interrupts enable bit is left in the correct state. */\r
- portDISABLE_INTERRUPTS();\r
- xSchedulerRunning = pdFALSE;\r
- vPortEndScheduler();\r
-}\r
-/*----------------------------------------------------------*/\r
-\r
-void vTaskSuspendAll( void )\r
-{\r
- /* A critical section is not required as the variable is of type\r
- portBASE_TYPE. */\r
- ++uxSchedulerSuspended;\r
-}\r
-/*----------------------------------------------------------*/\r
-\r
-portTickType xTaskGetExpectedIdleTime( void )\r
-{\r
-portTickType xReturn;\r
-\r
- if( pxCurrentTCB->uxPriority > tskIDLE_PRIORITY )\r
- {\r
- xReturn = 0;\r
- }\r
- else if( listCURRENT_LIST_LENGTH( &( pxReadyTasksLists[ tskIDLE_PRIORITY ] ) ) > 1 )\r
- {\r
- /* There are other idle priority tasks in the ready state. If\r
- time slicing is used then the very next tick interrupt must be\r
- processed. */\r
- xReturn = 0;\r
- }\r
- else\r
- {\r
- xReturn = xNextTaskUnblockTime - xTickCount;\r
- }\r
-\r
- return xReturn;\r
-}\r
-/*----------------------------------------------------------*/\r
-\r
-signed portBASE_TYPE xTaskResumeAll( void )\r
-{\r
-register tskTCB *pxTCB;\r
-signed portBASE_TYPE xAlreadyYielded = pdFALSE;\r
-\r
- /* If uxSchedulerSuspended is zero then this function does not match a\r
- previous call to vTaskSuspendAll(). */\r
- configASSERT( uxSchedulerSuspended );\r
-\r
- /* It is possible that an ISR caused a task to be removed from an event\r
- list while the scheduler was suspended. If this was the case then the\r
- removed task will have been added to the xPendingReadyList. Once the\r
- scheduler has been resumed it is safe to move all the pending ready\r
- tasks from this list into their appropriate ready list. */\r
- taskENTER_CRITICAL();\r
- {\r
- --uxSchedulerSuspended;\r
-\r
- if( uxSchedulerSuspended == ( unsigned portBASE_TYPE ) pdFALSE )\r
- {\r
- if( uxCurrentNumberOfTasks > ( unsigned portBASE_TYPE ) 0U )\r
- {\r
- portBASE_TYPE xYieldRequired = pdFALSE;\r
-\r
- /* Move any readied tasks from the pending list into the\r
- appropriate ready list. */\r
- while( listLIST_IS_EMPTY( ( xList * ) &xPendingReadyList ) == pdFALSE )\r
- {\r
- pxTCB = ( tskTCB * ) listGET_OWNER_OF_HEAD_ENTRY( ( ( xList * ) &xPendingReadyList ) );\r
- uxListRemove( &( pxTCB->xEventListItem ) );\r
- uxListRemove( &( pxTCB->xGenericListItem ) );\r
- prvAddTaskToReadyQueue( pxTCB );\r
-\r
- /* If we have moved a task that has a priority higher than\r
- the current task then we should yield. */\r
- if( pxTCB->uxPriority >= pxCurrentTCB->uxPriority )\r
- {\r
- xYieldRequired = pdTRUE;\r
- }\r
- }\r
-\r
- /* If any ticks occurred while the scheduler was suspended then\r
- they should be processed now. This ensures the tick count does not\r
- slip, and that any delayed tasks are resumed at the correct time. */\r
- if( uxMissedTicks > ( unsigned portBASE_TYPE ) 0U )\r
- {\r
- while( uxMissedTicks > ( unsigned portBASE_TYPE ) 0U )\r
- {\r
- vTaskIncrementTick();\r
- --uxMissedTicks;\r
- }\r
-\r
- /* As we have processed some ticks it is appropriate to yield\r
- to ensure the highest priority task that is ready to run is\r
- the task actually running. */\r
- #if configUSE_PREEMPTION == 1\r
- {\r
- xYieldRequired = pdTRUE;\r
- }\r
- #endif\r
- }\r
-\r
- if( ( xYieldRequired == pdTRUE ) || ( xMissedYield == pdTRUE ) )\r
- {\r
- xAlreadyYielded = pdTRUE;\r
- xMissedYield = pdFALSE;\r
- portYIELD_WITHIN_API();\r
- }\r
- }\r
- }\r
- }\r
- taskEXIT_CRITICAL();\r
-\r
- return xAlreadyYielded;\r
-}\r
-\r
-\r
-\r
-\r
-\r
-\r
-/*-----------------------------------------------------------\r
- * PUBLIC TASK UTILITIES documented in task.h\r
- *----------------------------------------------------------*/\r
-\r
-\r
-\r
-portTickType xTaskGetTickCount( void )\r
-{\r
-portTickType xTicks;\r
-\r
- /* Critical section required if running on a 16 bit processor. */\r
- taskENTER_CRITICAL();\r
- {\r
- xTicks = xTickCount;\r
- }\r
- taskEXIT_CRITICAL();\r
-\r
- return xTicks;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-portTickType xTaskGetTickCountFromISR( void )\r
-{\r
-portTickType xReturn;\r
-unsigned portBASE_TYPE uxSavedInterruptStatus;\r
-\r
- uxSavedInterruptStatus = portSET_INTERRUPT_MASK_FROM_ISR();\r
- xReturn = xTickCount;\r
- portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus );\r
-\r
- return xReturn;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-unsigned portBASE_TYPE uxTaskGetNumberOfTasks( void )\r
-{\r
- /* A critical section is not required because the variables are of type\r
- portBASE_TYPE. */\r
- return uxCurrentNumberOfTasks;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( INCLUDE_pcTaskGetTaskName == 1 )\r
-\r
- signed char *pcTaskGetTaskName( xTaskHandle xTaskToQuery )\r
- {\r
- tskTCB *pxTCB;\r
-\r
- /* If null is passed in here then the name of the calling task is being queried. */\r
- pxTCB = prvGetTCBFromHandle( xTaskToQuery );\r
- configASSERT( pxTCB );\r
- return &( pxTCB->pcTaskName[ 0 ] );\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( configUSE_TRACE_FACILITY == 1 )\r
-\r
- void vTaskList( signed char *pcWriteBuffer )\r
- {\r
- unsigned portBASE_TYPE uxQueue;\r
-\r
- /* This is a VERY costly function that should be used for debug only.\r
- It leaves interrupts disabled for a LONG time. */\r
-\r
- vTaskSuspendAll();\r
- {\r
- /* Run through all the lists that could potentially contain a TCB and\r
- report the task name, state and stack high water mark. */\r
-\r
- *pcWriteBuffer = ( signed char ) 0x00;\r
- strcat( ( char * ) pcWriteBuffer, ( const char * ) "\r\n" );\r
-\r
- uxQueue = uxTopUsedPriority + ( unsigned portBASE_TYPE ) 1U;\r
-\r
- do\r
- {\r
- uxQueue--;\r
-\r
- if( listLIST_IS_EMPTY( &( pxReadyTasksLists[ uxQueue ] ) ) == pdFALSE )\r
- {\r
- prvListTaskWithinSingleList( pcWriteBuffer, ( xList * ) &( pxReadyTasksLists[ uxQueue ] ), tskREADY_CHAR );\r
- }\r
- }while( uxQueue > ( unsigned short ) tskIDLE_PRIORITY );\r
-\r
- if( listLIST_IS_EMPTY( pxDelayedTaskList ) == pdFALSE )\r
- {\r
- prvListTaskWithinSingleList( pcWriteBuffer, ( xList * ) pxDelayedTaskList, tskBLOCKED_CHAR );\r
- }\r
-\r
- if( listLIST_IS_EMPTY( pxOverflowDelayedTaskList ) == pdFALSE )\r
- {\r
- prvListTaskWithinSingleList( pcWriteBuffer, ( xList * ) pxOverflowDelayedTaskList, tskBLOCKED_CHAR );\r
- }\r
-\r
- #if( INCLUDE_vTaskDelete == 1 )\r
- {\r
- if( listLIST_IS_EMPTY( &xTasksWaitingTermination ) == pdFALSE )\r
- {\r
- prvListTaskWithinSingleList( pcWriteBuffer, &xTasksWaitingTermination, tskDELETED_CHAR );\r
- }\r
- }\r
- #endif\r
-\r
- #if ( INCLUDE_vTaskSuspend == 1 )\r
- {\r
- if( listLIST_IS_EMPTY( &xSuspendedTaskList ) == pdFALSE )\r
- {\r
- prvListTaskWithinSingleList( pcWriteBuffer, &xSuspendedTaskList, tskSUSPENDED_CHAR );\r
- }\r
- }\r
- #endif\r
- }\r
- xTaskResumeAll();\r
- }\r
-\r
-#endif\r
-/*----------------------------------------------------------*/\r
-\r
-#if ( configGENERATE_RUN_TIME_STATS == 1 )\r
-\r
- void vTaskGetRunTimeStats( signed char *pcWriteBuffer )\r
- {\r
- unsigned portBASE_TYPE uxQueue;\r
- unsigned long ulTotalRunTime;\r
-\r
- /* This is a VERY costly function that should be used for debug only.\r
- It leaves interrupts disabled for a LONG time. */\r
-\r
- vTaskSuspendAll();\r
- {\r
- #ifdef portALT_GET_RUN_TIME_COUNTER_VALUE\r
- portALT_GET_RUN_TIME_COUNTER_VALUE( ulTotalRunTime );\r
- #else\r
- ulTotalRunTime = portGET_RUN_TIME_COUNTER_VALUE();\r
- #endif\r
-\r
- /* Divide ulTotalRunTime by 100 to make the percentage caluclations\r
- simpler in the prvGenerateRunTimeStatsForTasksInList() function. */\r
- ulTotalRunTime /= 100UL;\r
-\r
- /* Run through all the lists that could potentially contain a TCB,\r
- generating a table of run timer percentages in the provided\r
- buffer. */\r
-\r
- *pcWriteBuffer = ( signed char ) 0x00;\r
- strcat( ( char * ) pcWriteBuffer, ( const char * ) "\r\n" );\r
-\r
- uxQueue = uxTopUsedPriority + ( unsigned portBASE_TYPE ) 1U;\r
-\r
- do\r
- {\r
- uxQueue--;\r
-\r
- if( listLIST_IS_EMPTY( &( pxReadyTasksLists[ uxQueue ] ) ) == pdFALSE )\r
- {\r
- prvGenerateRunTimeStatsForTasksInList( pcWriteBuffer, ( xList * ) &( pxReadyTasksLists[ uxQueue ] ), ulTotalRunTime );\r
- }\r
- }while( uxQueue > ( unsigned short ) tskIDLE_PRIORITY );\r
-\r
- if( listLIST_IS_EMPTY( pxDelayedTaskList ) == pdFALSE )\r
- {\r
- prvGenerateRunTimeStatsForTasksInList( pcWriteBuffer, ( xList * ) pxDelayedTaskList, ulTotalRunTime );\r
- }\r
-\r
- if( listLIST_IS_EMPTY( pxOverflowDelayedTaskList ) == pdFALSE )\r
- {\r
- prvGenerateRunTimeStatsForTasksInList( pcWriteBuffer, ( xList * ) pxOverflowDelayedTaskList, ulTotalRunTime );\r
- }\r
-\r
- #if ( INCLUDE_vTaskDelete == 1 )\r
- {\r
- if( listLIST_IS_EMPTY( &xTasksWaitingTermination ) == pdFALSE )\r
- {\r
- prvGenerateRunTimeStatsForTasksInList( pcWriteBuffer, &xTasksWaitingTermination, ulTotalRunTime );\r
- }\r
- }\r
- #endif\r
-\r
- #if ( INCLUDE_vTaskSuspend == 1 )\r
- {\r
- if( listLIST_IS_EMPTY( &xSuspendedTaskList ) == pdFALSE )\r
- {\r
- prvGenerateRunTimeStatsForTasksInList( pcWriteBuffer, &xSuspendedTaskList, ulTotalRunTime );\r
- }\r
- }\r
- #endif\r
- }\r
- xTaskResumeAll();\r
- }\r
-\r
-#endif\r
-/*----------------------------------------------------------*/\r
-\r
-#if ( INCLUDE_xTaskGetIdleTaskHandle == 1 )\r
-\r
- xTaskHandle xTaskGetIdleTaskHandle( void )\r
- {\r
- /* If xTaskGetIdleTaskHandle() is called before the scheduler has been\r
- started, then xIdleTaskHandle will be NULL. */\r
- configASSERT( ( xIdleTaskHandle != NULL ) );\r
- return xIdleTaskHandle;\r
- }\r
-\r
-#endif\r
-/*----------------------------------------------------------*/\r
-\r
-void vTaskStepTick( portTickType xTicksToJump )\r
-{\r
- configASSERT( xTicksToJump <= xNextTaskUnblockTime );\r
- xTickCount += xTicksToJump;\r
-}\r
-\r
-/*-----------------------------------------------------------\r
- * SCHEDULER INTERNALS AVAILABLE FOR PORTING PURPOSES\r
- * documented in task.h\r
- *----------------------------------------------------------*/\r
-\r
-void vTaskIncrementTick( void )\r
-{\r
-tskTCB * pxTCB;\r
-\r
- /* Called by the portable layer each time a tick interrupt occurs.\r
- Increments the tick then checks to see if the new tick value will cause any\r
- tasks to be unblocked. */\r
- traceTASK_INCREMENT_TICK( xTickCount );\r
- if( uxSchedulerSuspended == ( unsigned portBASE_TYPE ) pdFALSE )\r
- {\r
- ++xTickCount;\r
- if( xTickCount == ( portTickType ) 0U )\r
- {\r
- xList *pxTemp;\r
-\r
- /* Tick count has overflowed so we need to swap the delay lists.\r
- If there are any items in pxDelayedTaskList here then there is\r
- an error! */\r
- configASSERT( ( listLIST_IS_EMPTY( pxDelayedTaskList ) ) );\r
-\r
- pxTemp = pxDelayedTaskList;\r
- pxDelayedTaskList = pxOverflowDelayedTaskList;\r
- pxOverflowDelayedTaskList = pxTemp;\r
- xNumOfOverflows++;\r
-\r
- if( listLIST_IS_EMPTY( pxDelayedTaskList ) != pdFALSE )\r
- {\r
- /* The new current delayed list is empty. Set\r
- xNextTaskUnblockTime to the maximum possible value so it is\r
- extremely unlikely that the\r
- if( xTickCount >= xNextTaskUnblockTime ) test will pass until\r
- there is an item in the delayed list. */\r
- xNextTaskUnblockTime = portMAX_DELAY;\r
- }\r
- else\r
- {\r
- /* The new current delayed list is not empty, get the value of\r
- the item at the head of the delayed list. This is the time at\r
- which the task at the head of the delayed list should be removed\r
- from the Blocked state. */\r
- pxTCB = ( tskTCB * ) listGET_OWNER_OF_HEAD_ENTRY( pxDelayedTaskList );\r
- xNextTaskUnblockTime = listGET_LIST_ITEM_VALUE( &( pxTCB->xGenericListItem ) );\r
- }\r
- }\r
-\r
- /* See if this tick has made a timeout expire. */\r
- prvCheckDelayedTasks();\r
- }\r
- else\r
- {\r
- ++uxMissedTicks;\r
-\r
- /* The tick hook gets called at regular intervals, even if the\r
- scheduler is locked. */\r
- #if ( configUSE_TICK_HOOK == 1 )\r
- {\r
- vApplicationTickHook();\r
- }\r
- #endif\r
- }\r
-\r
- #if ( configUSE_TICK_HOOK == 1 )\r
- {\r
- /* Guard against the tick hook being called when the missed tick\r
- count is being unwound (when the scheduler is being unlocked. */\r
- if( uxMissedTicks == ( unsigned portBASE_TYPE ) 0U )\r
- {\r
- vApplicationTickHook();\r
- }\r
- }\r
- #endif\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( configUSE_APPLICATION_TASK_TAG == 1 )\r
-\r
- void vTaskSetApplicationTaskTag( xTaskHandle xTask, pdTASK_HOOK_CODE pxHookFunction )\r
- {\r
- tskTCB *xTCB;\r
-\r
- /* If xTask is NULL then we are setting our own task hook. */\r
- if( xTask == NULL )\r
- {\r
- xTCB = ( tskTCB * ) pxCurrentTCB;\r
- }\r
- else\r
- {\r
- xTCB = ( tskTCB * ) xTask;\r
- }\r
-\r
- /* Save the hook function in the TCB. A critical section is required as\r
- the value can be accessed from an interrupt. */\r
- taskENTER_CRITICAL();\r
- xTCB->pxTaskTag = pxHookFunction;\r
- taskEXIT_CRITICAL();\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( configUSE_APPLICATION_TASK_TAG == 1 )\r
-\r
- pdTASK_HOOK_CODE xTaskGetApplicationTaskTag( xTaskHandle xTask )\r
- {\r
- tskTCB *xTCB;\r
- pdTASK_HOOK_CODE xReturn;\r
-\r
- /* If xTask is NULL then we are setting our own task hook. */\r
- if( xTask == NULL )\r
- {\r
- xTCB = ( tskTCB * ) pxCurrentTCB;\r
- }\r
- else\r
- {\r
- xTCB = ( tskTCB * ) xTask;\r
- }\r
-\r
- /* Save the hook function in the TCB. A critical section is required as\r
- the value can be accessed from an interrupt. */\r
- taskENTER_CRITICAL();\r
- xReturn = xTCB->pxTaskTag;\r
- taskEXIT_CRITICAL();\r
-\r
- return xReturn;\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( configUSE_APPLICATION_TASK_TAG == 1 )\r
-\r
- portBASE_TYPE xTaskCallApplicationTaskHook( xTaskHandle xTask, void *pvParameter )\r
- {\r
- tskTCB *xTCB;\r
- portBASE_TYPE xReturn;\r
-\r
- /* If xTask is NULL then we are calling our own task hook. */\r
- if( xTask == NULL )\r
- {\r
- xTCB = ( tskTCB * ) pxCurrentTCB;\r
- }\r
- else\r
- {\r
- xTCB = ( tskTCB * ) xTask;\r
- }\r
-\r
- if( xTCB->pxTaskTag != NULL )\r
- {\r
- xReturn = xTCB->pxTaskTag( pvParameter );\r
- }\r
- else\r
- {\r
- xReturn = pdFAIL;\r
- }\r
-\r
- return xReturn;\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-void vTaskSwitchContext( void )\r
-{\r
- if( uxSchedulerSuspended != ( unsigned portBASE_TYPE ) pdFALSE )\r
- {\r
- /* The scheduler is currently suspended - do not allow a context\r
- switch. */\r
- xMissedYield = pdTRUE;\r
- }\r
- else\r
- {\r
- traceTASK_SWITCHED_OUT();\r
-\r
- #if ( configGENERATE_RUN_TIME_STATS == 1 )\r
- {\r
- unsigned long ulTempCounter;\r
-\r
- #ifdef portALT_GET_RUN_TIME_COUNTER_VALUE\r
- portALT_GET_RUN_TIME_COUNTER_VALUE( ulTempCounter );\r
- #else\r
- ulTempCounter = portGET_RUN_TIME_COUNTER_VALUE();\r
- #endif\r
-\r
- /* Add the amount of time the task has been running to the accumulated\r
- time so far. The time the task started running was stored in\r
- ulTaskSwitchedInTime. Note that there is no overflow protection here\r
- so count values are only valid until the timer overflows. Generally\r
- this will be about 1 hour assuming a 1uS timer increment. */\r
- pxCurrentTCB->ulRunTimeCounter += ( ulTempCounter - ulTaskSwitchedInTime );\r
- ulTaskSwitchedInTime = ulTempCounter;\r
- }\r
- #endif\r
-\r
- taskFIRST_CHECK_FOR_STACK_OVERFLOW();\r
- taskSECOND_CHECK_FOR_STACK_OVERFLOW();\r
-\r
- taskSELECT_HIGHEST_PRIORITY_TASK();\r
-\r
- traceTASK_SWITCHED_IN();\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-void vTaskPlaceOnEventList( const xList * const pxEventList, portTickType xTicksToWait )\r
-{\r
-portTickType xTimeToWake;\r
-\r
- configASSERT( pxEventList );\r
-\r
- /* THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED OR THE\r
- SCHEDULER SUSPENDED. */\r
-\r
- /* Place the event list item of the TCB in the appropriate event list.\r
- This is placed in the list in priority order so the highest priority task\r
- is the first to be woken by the event. */\r
- vListInsert( ( xList * ) pxEventList, ( xListItem * ) &( pxCurrentTCB->xEventListItem ) );\r
-\r
- /* We must remove ourselves from the ready list before adding ourselves\r
- to the blocked list as the same list item is used for both lists. We have\r
- exclusive access to the ready lists as the scheduler is locked. */\r
- if( uxListRemove( ( xListItem * ) &( pxCurrentTCB->xGenericListItem ) ) == 0 )\r
- {\r
- /* The current task must be in a ready list, so there is no need to\r
- check, and the port reset macro can be called directly. */\r
- portRESET_READY_PRIORITY( pxCurrentTCB->uxPriority, uxTopReadyPriority );\r
- }\r
-\r
- #if ( INCLUDE_vTaskSuspend == 1 )\r
- {\r
- if( xTicksToWait == portMAX_DELAY )\r
- {\r
- /* Add ourselves to the suspended task list instead of a delayed task\r
- list to ensure we are not woken by a timing event. We will block\r
- indefinitely. */\r
- vListInsertEnd( ( xList * ) &xSuspendedTaskList, ( xListItem * ) &( pxCurrentTCB->xGenericListItem ) );\r
- }\r
- else\r
- {\r
- /* Calculate the time at which the task should be woken if the event does\r
- not occur. This may overflow but this doesn't matter. */\r
- xTimeToWake = xTickCount + xTicksToWait;\r
- prvAddCurrentTaskToDelayedList( xTimeToWake );\r
- }\r
- }\r
- #else\r
- {\r
- /* Calculate the time at which the task should be woken if the event does\r
- not occur. This may overflow but this doesn't matter. */\r
- xTimeToWake = xTickCount + xTicksToWait;\r
- prvAddCurrentTaskToDelayedList( xTimeToWake );\r
- }\r
- #endif\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-#if configUSE_TIMERS == 1\r
-\r
- void vTaskPlaceOnEventListRestricted( const xList * const pxEventList, portTickType xTicksToWait )\r
- {\r
- portTickType xTimeToWake;\r
-\r
- configASSERT( pxEventList );\r
-\r
- /* This function should not be called by application code hence the\r
- 'Restricted' in its name. It is not part of the public API. It is\r
- designed for use by kernel code, and has special calling requirements -\r
- it should be called from a critical section. */\r
-\r
-\r
- /* Place the event list item of the TCB in the appropriate event list.\r
- In this case it is assume that this is the only task that is going to\r
- be waiting on this event list, so the faster vListInsertEnd() function\r
- can be used in place of vListInsert. */\r
- vListInsertEnd( ( xList * ) pxEventList, ( xListItem * ) &( pxCurrentTCB->xEventListItem ) );\r
-\r
- /* We must remove this task from the ready list before adding it to the\r
- blocked list as the same list item is used for both lists. This\r
- function is called form a critical section. */\r
- if( uxListRemove( ( xListItem * ) &( pxCurrentTCB->xGenericListItem ) ) == 0 )\r
- {\r
- /* The current task must be in a ready list, so there is no need to\r
- check, and the port reset macro can be called directly. */\r
- portRESET_READY_PRIORITY( pxCurrentTCB->uxPriority, uxTopReadyPriority );\r
- }\r
-\r
- /* Calculate the time at which the task should be woken if the event does\r
- not occur. This may overflow but this doesn't matter. */\r
- xTimeToWake = xTickCount + xTicksToWait;\r
- prvAddCurrentTaskToDelayedList( xTimeToWake );\r
- }\r
-\r
-#endif /* configUSE_TIMERS */\r
-/*-----------------------------------------------------------*/\r
-\r
-signed portBASE_TYPE xTaskRemoveFromEventList( const xList * const pxEventList )\r
-{\r
-tskTCB *pxUnblockedTCB;\r
-portBASE_TYPE xReturn;\r
-\r
- /* THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED OR THE\r
- SCHEDULER SUSPENDED. It can also be called from within an ISR. */\r
-\r
- /* The event list is sorted in priority order, so we can remove the\r
- first in the list, remove the TCB from the delayed list, and add\r
- it to the ready list.\r
-\r
- If an event is for a queue that is locked then this function will never\r
- get called - the lock count on the queue will get modified instead. This\r
- means we can always expect exclusive access to the event list here.\r
-\r
- This function assumes that a check has already been made to ensure that\r
- pxEventList is not empty. */\r
- pxUnblockedTCB = ( tskTCB * ) listGET_OWNER_OF_HEAD_ENTRY( pxEventList );\r
- configASSERT( pxUnblockedTCB );\r
- uxListRemove( &( pxUnblockedTCB->xEventListItem ) );\r
-\r
- if( uxSchedulerSuspended == ( unsigned portBASE_TYPE ) pdFALSE )\r
- {\r
- uxListRemove( &( pxUnblockedTCB->xGenericListItem ) );\r
- prvAddTaskToReadyQueue( pxUnblockedTCB );\r
- }\r
- else\r
- {\r
- /* We cannot access the delayed or ready lists, so will hold this\r
- task pending until the scheduler is resumed. */\r
- vListInsertEnd( ( xList * ) &( xPendingReadyList ), &( pxUnblockedTCB->xEventListItem ) );\r
- }\r
-\r
- if( pxUnblockedTCB->uxPriority >= pxCurrentTCB->uxPriority )\r
- {\r
- /* Return true if the task removed from the event list has\r
- a higher priority than the calling task. This allows\r
- the calling task to know if it should force a context\r
- switch now. */\r
- xReturn = pdTRUE;\r
- }\r
- else\r
- {\r
- xReturn = pdFALSE;\r
- }\r
-\r
- return xReturn;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-void vTaskSetTimeOutState( xTimeOutType * const pxTimeOut )\r
-{\r
- configASSERT( pxTimeOut );\r
- pxTimeOut->xOverflowCount = xNumOfOverflows;\r
- pxTimeOut->xTimeOnEntering = xTickCount;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-portBASE_TYPE xTaskCheckForTimeOut( xTimeOutType * const pxTimeOut, portTickType * const pxTicksToWait )\r
-{\r
-portBASE_TYPE xReturn;\r
-\r
- configASSERT( pxTimeOut );\r
- configASSERT( pxTicksToWait );\r
-\r
- taskENTER_CRITICAL();\r
- {\r
- #if ( INCLUDE_vTaskSuspend == 1 )\r
- /* If INCLUDE_vTaskSuspend is set to 1 and the block time specified is\r
- the maximum block time then the task should block indefinitely, and\r
- therefore never time out. */\r
- if( *pxTicksToWait == portMAX_DELAY )\r
- {\r
- xReturn = pdFALSE;\r
- }\r
- else /* We are not blocking indefinitely, perform the checks below. */\r
- #endif\r
-\r
- if( ( xNumOfOverflows != pxTimeOut->xOverflowCount ) && ( ( portTickType ) xTickCount >= ( portTickType ) pxTimeOut->xTimeOnEntering ) )\r
- {\r
- /* The tick count is greater than the time at which vTaskSetTimeout()\r
- was called, but has also overflowed since vTaskSetTimeOut() was called.\r
- It must have wrapped all the way around and gone past us again. This\r
- passed since vTaskSetTimeout() was called. */\r
- xReturn = pdTRUE;\r
- }\r
- else if( ( ( portTickType ) ( ( portTickType ) xTickCount - ( portTickType ) pxTimeOut->xTimeOnEntering ) ) < ( portTickType ) *pxTicksToWait )\r
- {\r
- /* Not a genuine timeout. Adjust parameters for time remaining. */\r
- *pxTicksToWait -= ( ( portTickType ) xTickCount - ( portTickType ) pxTimeOut->xTimeOnEntering );\r
- vTaskSetTimeOutState( pxTimeOut );\r
- xReturn = pdFALSE;\r
- }\r
- else\r
- {\r
- xReturn = pdTRUE;\r
- }\r
- }\r
- taskEXIT_CRITICAL();\r
-\r
- return xReturn;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-void vTaskMissedYield( void )\r
-{\r
- xMissedYield = pdTRUE;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( configUSE_TRACE_FACILITY == 1 )\r
- unsigned portBASE_TYPE uxTaskGetTaskNumber( xTaskHandle xTask )\r
- {\r
- unsigned portBASE_TYPE uxReturn;\r
- tskTCB *pxTCB;\r
-\r
- if( xTask != NULL )\r
- {\r
- pxTCB = ( tskTCB * ) xTask;\r
- uxReturn = pxTCB->uxTaskNumber;\r
- }\r
- else\r
- {\r
- uxReturn = 0U;\r
- }\r
-\r
- return uxReturn;\r
- }\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( configUSE_TRACE_FACILITY == 1 )\r
- void vTaskSetTaskNumber( xTaskHandle xTask, unsigned portBASE_TYPE uxHandle )\r
- {\r
- tskTCB *pxTCB;\r
-\r
- if( xTask != NULL )\r
- {\r
- pxTCB = ( tskTCB * ) xTask;\r
- pxTCB->uxTaskNumber = uxHandle;\r
- }\r
- }\r
-#endif\r
-\r
-\r
-/*\r
- * -----------------------------------------------------------\r
- * The Idle task.\r
- * ----------------------------------------------------------\r
- *\r
- * The portTASK_FUNCTION() macro is used to allow port/compiler specific\r
- * language extensions. The equivalent prototype for this function is:\r
- *\r
- * void prvIdleTask( void *pvParameters );\r
- *\r
- */\r
-static portTASK_FUNCTION( prvIdleTask, pvParameters )\r
-{\r
- /* Stop warnings. */\r
- ( void ) pvParameters;\r
-\r
- for( ;; )\r
- {\r
- /* See if any tasks have been deleted. */\r
- prvCheckTasksWaitingTermination();\r
-\r
- #if ( configUSE_PREEMPTION == 0 )\r
- {\r
- /* If we are not using preemption we keep forcing a task switch to\r
- see if any other task has become available. If we are using\r
- preemption we don't need to do this as any task becoming available\r
- will automatically get the processor anyway. */\r
- taskYIELD();\r
- }\r
- #endif\r
-\r
- #if ( ( configUSE_PREEMPTION == 1 ) && ( configIDLE_SHOULD_YIELD == 1 ) )\r
- {\r
- /* When using preemption tasks of equal priority will be\r
- timesliced. If a task that is sharing the idle priority is ready\r
- to run then the idle task should yield before the end of the\r
- timeslice.\r
-\r
- A critical region is not required here as we are just reading from\r
- the list, and an occasional incorrect value will not matter. If\r
- the ready list at the idle priority contains more than one task\r
- then a task other than the idle task is ready to execute. */\r
- if( listCURRENT_LIST_LENGTH( &( pxReadyTasksLists[ tskIDLE_PRIORITY ] ) ) > ( unsigned portBASE_TYPE ) 1 )\r
- {\r
- taskYIELD();\r
- }\r
- }\r
- #endif\r
-\r
- #if ( configUSE_IDLE_HOOK == 1 )\r
- {\r
- extern void vApplicationIdleHook( void );\r
-\r
- /* Call the user defined function from within the idle task. This\r
- allows the application designer to add background functionality\r
- without the overhead of a separate task.\r
- NOTE: vApplicationIdleHook() MUST NOT, UNDER ANY CIRCUMSTANCES,\r
- CALL A FUNCTION THAT MIGHT BLOCK. */\r
- vApplicationIdleHook();\r
- }\r
- #endif\r
-\r
- #if ( configUSE_TICKLESS_IDLE == 1 )\r
- {\r
- portTickType xExpectedIdleTime;\r
- /* If the expected idle time is 1 then the idle time would end at\r
- the end of the current time slice. The idle time must be at least\r
- 2 to ensure any pended ticks between this point and the tick being\r
- stopped can be legitimately stepped over when the tick suppression\r
- routines returns. */\r
- const portTickType xMinimumExpectedIdleTime = ( portTickType ) 2;\r
-\r
- /* Don't enter low power if there are still tasks waiting\r
- deletion. */\r
- if( uxTasksDeleted == 0 )\r
- {\r
- /* It is not desirable to suspend then resume the scheduler on\r
- each iteration of the idle task. Therefore, a preliminary\r
- test of the expected idle time is performed without the\r
- scheduler suspended. The result here is not necessarily\r
- valid. */\r
- xExpectedIdleTime = xTaskGetExpectedIdleTime();\r
-\r
- if( xExpectedIdleTime >= xMinimumExpectedIdleTime )\r
- {\r
- vTaskSuspendAll();\r
- {\r
- /* Now the scheduler is suspended, the expected idle\r
- time can be sampled again, and this time its value can\r
- be used. */\r
- configASSERT( xNextTaskUnblockTime >= xTickCount );\r
- xExpectedIdleTime = xTaskGetExpectedIdleTime();\r
-\r
- if( xExpectedIdleTime >= xMinimumExpectedIdleTime )\r
- {\r
- portSUPPRESS_TICKS_AND_SLEEP( xExpectedIdleTime );\r
- }\r
- }\r
- xTaskResumeAll();\r
- }\r
- }\r
- }\r
- #endif\r
- }\r
-} /*lint !e715 pvParameters is not accessed but all task functions require the same prototype. */\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-/*-----------------------------------------------------------\r
- * File private functions documented at the top of the file.\r
- *----------------------------------------------------------*/\r
-\r
-\r
-\r
-static void prvInitialiseTCBVariables( tskTCB *pxTCB, const signed char * const pcName, unsigned portBASE_TYPE uxPriority, const xMemoryRegion * const xRegions, unsigned short usStackDepth )\r
-{\r
- /* Store the function name in the TCB. */\r
- #if configMAX_TASK_NAME_LEN > 1\r
- {\r
- /* Don't bring strncpy into the build unnecessarily. */\r
- strncpy( ( char * ) pxTCB->pcTaskName, ( const char * ) pcName, ( unsigned short ) configMAX_TASK_NAME_LEN );\r
- }\r
- #endif\r
- pxTCB->pcTaskName[ ( unsigned short ) configMAX_TASK_NAME_LEN - ( unsigned short ) 1 ] = ( signed char ) '\0';\r
-\r
- /* This is used as an array index so must ensure it's not too large. First\r
- remove the privilege bit if one is present. */\r
- if( uxPriority >= configMAX_PRIORITIES )\r
- {\r
- uxPriority = configMAX_PRIORITIES - ( unsigned portBASE_TYPE ) 1U;\r
- }\r
-\r
- pxTCB->uxPriority = uxPriority;\r
- #if ( configUSE_MUTEXES == 1 )\r
- {\r
- pxTCB->uxBasePriority = uxPriority;\r
- }\r
- #endif\r
-\r
- vListInitialiseItem( &( pxTCB->xGenericListItem ) );\r
- vListInitialiseItem( &( pxTCB->xEventListItem ) );\r
-\r
- /* Set the pxTCB as a link back from the xListItem. This is so we can get\r
- back to the containing TCB from a generic item in a list. */\r
- listSET_LIST_ITEM_OWNER( &( pxTCB->xGenericListItem ), pxTCB );\r
-\r
- /* Event lists are always in priority order. */\r
- listSET_LIST_ITEM_VALUE( &( pxTCB->xEventListItem ), configMAX_PRIORITIES - ( portTickType ) uxPriority );\r
- listSET_LIST_ITEM_OWNER( &( pxTCB->xEventListItem ), pxTCB );\r
-\r
- #if ( portCRITICAL_NESTING_IN_TCB == 1 )\r
- {\r
- pxTCB->uxCriticalNesting = ( unsigned portBASE_TYPE ) 0U;\r
- }\r
- #endif\r
-\r
- #if ( configUSE_APPLICATION_TASK_TAG == 1 )\r
- {\r
- pxTCB->pxTaskTag = NULL;\r
- }\r
- #endif\r
-\r
- #if ( configGENERATE_RUN_TIME_STATS == 1 )\r
- {\r
- pxTCB->ulRunTimeCounter = 0UL;\r
- }\r
- #endif\r
-\r
- #if ( portUSING_MPU_WRAPPERS == 1 )\r
- {\r
- vPortStoreTaskMPUSettings( &( pxTCB->xMPUSettings ), xRegions, pxTCB->pxStack, usStackDepth );\r
- }\r
- #else\r
- {\r
- ( void ) xRegions;\r
- ( void ) usStackDepth;\r
- }\r
- #endif\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( portUSING_MPU_WRAPPERS == 1 )\r
-\r
- void vTaskAllocateMPURegions( xTaskHandle xTaskToModify, const xMemoryRegion * const xRegions )\r
- {\r
- tskTCB *pxTCB;\r
-\r
- if( xTaskToModify == pxCurrentTCB )\r
- {\r
- xTaskToModify = NULL;\r
- }\r
-\r
- /* If null is passed in here then we are deleting ourselves. */\r
- pxTCB = prvGetTCBFromHandle( xTaskToModify );\r
-\r
- vPortStoreTaskMPUSettings( &( pxTCB->xMPUSettings ), xRegions, NULL, 0 );\r
- }\r
- /*-----------------------------------------------------------*/\r
-#endif\r
-\r
-static void prvInitialiseTaskLists( void )\r
-{\r
-unsigned portBASE_TYPE uxPriority;\r
-\r
- for( uxPriority = ( unsigned portBASE_TYPE ) 0U; uxPriority < configMAX_PRIORITIES; uxPriority++ )\r
- {\r
- vListInitialise( ( xList * ) &( pxReadyTasksLists[ uxPriority ] ) );\r
- }\r
-\r
- vListInitialise( ( xList * ) &xDelayedTaskList1 );\r
- vListInitialise( ( xList * ) &xDelayedTaskList2 );\r
- vListInitialise( ( xList * ) &xPendingReadyList );\r
-\r
- #if ( INCLUDE_vTaskDelete == 1 )\r
- {\r
- vListInitialise( ( xList * ) &xTasksWaitingTermination );\r
- }\r
- #endif\r
-\r
- #if ( INCLUDE_vTaskSuspend == 1 )\r
- {\r
- vListInitialise( ( xList * ) &xSuspendedTaskList );\r
- }\r
- #endif\r
-\r
- /* Start with pxDelayedTaskList using list1 and the pxOverflowDelayedTaskList\r
- using list2. */\r
- pxDelayedTaskList = &xDelayedTaskList1;\r
- pxOverflowDelayedTaskList = &xDelayedTaskList2;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvCheckTasksWaitingTermination( void )\r
-{\r
- #if ( INCLUDE_vTaskDelete == 1 )\r
- {\r
- portBASE_TYPE xListIsEmpty;\r
-\r
- /* ucTasksDeleted is used to prevent vTaskSuspendAll() being called\r
- too often in the idle task. */\r
- if( uxTasksDeleted > ( unsigned portBASE_TYPE ) 0U )\r
- {\r
- vTaskSuspendAll();\r
- xListIsEmpty = listLIST_IS_EMPTY( &xTasksWaitingTermination );\r
- xTaskResumeAll();\r
-\r
- if( xListIsEmpty == pdFALSE )\r
- {\r
- tskTCB *pxTCB;\r
-\r
- taskENTER_CRITICAL();\r
- {\r
- pxTCB = ( tskTCB * ) listGET_OWNER_OF_HEAD_ENTRY( ( ( xList * ) &xTasksWaitingTermination ) );\r
- uxListRemove( &( pxTCB->xGenericListItem ) );\r
- --uxCurrentNumberOfTasks;\r
- --uxTasksDeleted;\r
- }\r
- taskEXIT_CRITICAL();\r
-\r
- prvDeleteTCB( pxTCB );\r
- }\r
- }\r
- }\r
- #endif\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvAddCurrentTaskToDelayedList( portTickType xTimeToWake )\r
-{\r
- /* The list item will be inserted in wake time order. */\r
- listSET_LIST_ITEM_VALUE( &( pxCurrentTCB->xGenericListItem ), xTimeToWake );\r
-\r
- if( xTimeToWake < xTickCount )\r
- {\r
- /* Wake time has overflowed. Place this item in the overflow list. */\r
- vListInsert( ( xList * ) pxOverflowDelayedTaskList, ( xListItem * ) &( pxCurrentTCB->xGenericListItem ) );\r
- }\r
- else\r
- {\r
- /* The wake time has not overflowed, so we can use the current block list. */\r
- vListInsert( ( xList * ) pxDelayedTaskList, ( xListItem * ) &( pxCurrentTCB->xGenericListItem ) );\r
-\r
- /* If the task entering the blocked state was placed at the head of the\r
- list of blocked tasks then xNextTaskUnblockTime needs to be updated\r
- too. */\r
- if( xTimeToWake < xNextTaskUnblockTime )\r
- {\r
- xNextTaskUnblockTime = xTimeToWake;\r
- }\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static tskTCB *prvAllocateTCBAndStack( unsigned short usStackDepth, portSTACK_TYPE *puxStackBuffer )\r
-{\r
-tskTCB *pxNewTCB;\r
-\r
- /* Allocate space for the TCB. Where the memory comes from depends on\r
- the implementation of the port malloc function. */\r
- pxNewTCB = ( tskTCB * ) pvPortMalloc( sizeof( tskTCB ) );\r
-\r
- if( pxNewTCB != NULL )\r
- {\r
- /* Allocate space for the stack used by the task being created.\r
- The base of the stack memory stored in the TCB so the task can\r
- be deleted later if required. */\r
- pxNewTCB->pxStack = ( portSTACK_TYPE * ) pvPortMallocAligned( ( ( ( size_t )usStackDepth ) * sizeof( portSTACK_TYPE ) ), puxStackBuffer );\r
-\r
- if( pxNewTCB->pxStack == NULL )\r
- {\r
- /* Could not allocate the stack. Delete the allocated TCB. */\r
- vPortFree( pxNewTCB );\r
- pxNewTCB = NULL;\r
- }\r
- else\r
- {\r
- /* Just to help debugging. */\r
- memset( pxNewTCB->pxStack, ( int ) tskSTACK_FILL_BYTE, ( size_t ) usStackDepth * sizeof( portSTACK_TYPE ) );\r
- }\r
- }\r
-\r
- return pxNewTCB;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( configUSE_TRACE_FACILITY == 1 )\r
-\r
- static void prvListTaskWithinSingleList( const signed char *pcWriteBuffer, xList *pxList, signed char cStatus )\r
- {\r
- volatile tskTCB *pxNextTCB, *pxFirstTCB;\r
- unsigned short usStackRemaining;\r
- PRIVILEGED_DATA static char pcStatusString[ configMAX_TASK_NAME_LEN + 30 ];\r
-\r
- /* Write the details of all the TCB's in pxList into the buffer. */\r
- listGET_OWNER_OF_NEXT_ENTRY( pxFirstTCB, pxList );\r
- do\r
- {\r
- listGET_OWNER_OF_NEXT_ENTRY( pxNextTCB, pxList );\r
- #if ( portSTACK_GROWTH > 0 )\r
- {\r
- usStackRemaining = usTaskCheckFreeStackSpace( ( unsigned char * ) pxNextTCB->pxEndOfStack );\r
- }\r
- #else\r
- {\r
- usStackRemaining = usTaskCheckFreeStackSpace( ( unsigned char * ) pxNextTCB->pxStack );\r
- }\r
- #endif\r
-\r
- sprintf( pcStatusString, ( char * ) "%s\t\t%c\t%u\t%u\t%u\r\n", pxNextTCB->pcTaskName, cStatus, ( unsigned int ) pxNextTCB->uxPriority, usStackRemaining, ( unsigned int ) pxNextTCB->uxTCBNumber );\r
- strcat( ( char * ) pcWriteBuffer, ( char * ) pcStatusString );\r
-\r
- } while( pxNextTCB != pxFirstTCB );\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( configGENERATE_RUN_TIME_STATS == 1 )\r
-\r
- static void prvGenerateRunTimeStatsForTasksInList( const signed char *pcWriteBuffer, xList *pxList, unsigned long ulTotalRunTime )\r
- {\r
- volatile tskTCB *pxNextTCB, *pxFirstTCB;\r
- unsigned long ulStatsAsPercentage;\r
-\r
- /* Write the run time stats of all the TCB's in pxList into the buffer. */\r
- listGET_OWNER_OF_NEXT_ENTRY( pxFirstTCB, pxList );\r
- do\r
- {\r
- /* Get next TCB in from the list. */\r
- listGET_OWNER_OF_NEXT_ENTRY( pxNextTCB, pxList );\r
-\r
- /* Divide by zero check. */\r
- if( ulTotalRunTime > 0UL )\r
- {\r
- /* Has the task run at all? */\r
- if( pxNextTCB->ulRunTimeCounter == 0UL )\r
- {\r
- /* The task has used no CPU time at all. */\r
- sprintf( pcStatsString, ( char * ) "%s\t\t0\t\t0%%\r\n", pxNextTCB->pcTaskName );\r
- }\r
- else\r
- {\r
- /* What percentage of the total run time has the task used?\r
- This will always be rounded down to the nearest integer.\r
- ulTotalRunTime has already been divided by 100. */\r
- ulStatsAsPercentage = pxNextTCB->ulRunTimeCounter / ulTotalRunTime;\r
-\r
- if( ulStatsAsPercentage > 0UL )\r
- {\r
- #ifdef portLU_PRINTF_SPECIFIER_REQUIRED\r
- {\r
- sprintf( pcStatsString, ( char * ) "%s\t\t%lu\t\t%lu%%\r\n", pxNextTCB->pcTaskName, pxNextTCB->ulRunTimeCounter, ulStatsAsPercentage );\r
- }\r
- #else\r
- {\r
- /* sizeof( int ) == sizeof( long ) so a smaller\r
- printf() library can be used. */\r
- sprintf( pcStatsString, ( char * ) "%s\t\t%u\t\t%u%%\r\n", pxNextTCB->pcTaskName, ( unsigned int ) pxNextTCB->ulRunTimeCounter, ( unsigned int ) ulStatsAsPercentage );\r
- }\r
- #endif\r
- }\r
- else\r
- {\r
- /* If the percentage is zero here then the task has\r
- consumed less than 1% of the total run time. */\r
- #ifdef portLU_PRINTF_SPECIFIER_REQUIRED\r
- {\r
- sprintf( pcStatsString, ( char * ) "%s\t\t%lu\t\t<1%%\r\n", pxNextTCB->pcTaskName, pxNextTCB->ulRunTimeCounter );\r
- }\r
- #else\r
- {\r
- /* sizeof( int ) == sizeof( long ) so a smaller\r
- printf() library can be used. */\r
- sprintf( pcStatsString, ( char * ) "%s\t\t%u\t\t<1%%\r\n", pxNextTCB->pcTaskName, ( unsigned int ) pxNextTCB->ulRunTimeCounter );\r
- }\r
- #endif\r
- }\r
- }\r
-\r
- strcat( ( char * ) pcWriteBuffer, ( char * ) pcStatsString );\r
- }\r
-\r
- } while( pxNextTCB != pxFirstTCB );\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( ( configUSE_TRACE_FACILITY == 1 ) || ( INCLUDE_uxTaskGetStackHighWaterMark == 1 ) )\r
-\r
- static unsigned short usTaskCheckFreeStackSpace( const unsigned char * pucStackByte )\r
- {\r
- register unsigned short usCount = 0U;\r
-\r
- while( *pucStackByte == tskSTACK_FILL_BYTE )\r
- {\r
- pucStackByte -= portSTACK_GROWTH;\r
- usCount++;\r
- }\r
-\r
- usCount /= sizeof( portSTACK_TYPE );\r
-\r
- return usCount;\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( INCLUDE_uxTaskGetStackHighWaterMark == 1 )\r
-\r
- unsigned portBASE_TYPE uxTaskGetStackHighWaterMark( xTaskHandle xTask )\r
- {\r
- tskTCB *pxTCB;\r
- unsigned char *pcEndOfStack;\r
- unsigned portBASE_TYPE uxReturn;\r
-\r
- pxTCB = prvGetTCBFromHandle( xTask );\r
-\r
- #if portSTACK_GROWTH < 0\r
- {\r
- pcEndOfStack = ( unsigned char * ) pxTCB->pxStack;\r
- }\r
- #else\r
- {\r
- pcEndOfStack = ( unsigned char * ) pxTCB->pxEndOfStack;\r
- }\r
- #endif\r
-\r
- uxReturn = ( unsigned portBASE_TYPE ) usTaskCheckFreeStackSpace( pcEndOfStack );\r
-\r
- return uxReturn;\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( INCLUDE_vTaskDelete == 1 )\r
-\r
- static void prvDeleteTCB( tskTCB *pxTCB )\r
- {\r
- /* This call is required specifically for the TriCore port. It must be\r
- above the vPortFree() calls. The call is also used by ports/demos that\r
- want to allocate and clean RAM statically. */\r
- portCLEAN_UP_TCB( pxTCB );\r
-\r
- /* Free up the memory allocated by the scheduler for the task. It is up to\r
- the task to free any memory allocated at the application level. */\r
- vPortFreeAligned( pxTCB->pxStack );\r
- vPortFree( pxTCB );\r
- }\r
-\r
-#endif\r
-\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( ( INCLUDE_xTaskGetCurrentTaskHandle == 1 ) || ( configUSE_MUTEXES == 1 ) )\r
-\r
- xTaskHandle xTaskGetCurrentTaskHandle( void )\r
- {\r
- xTaskHandle xReturn;\r
-\r
- /* A critical section is not required as this is not called from\r
- an interrupt and the current TCB will always be the same for any\r
- individual execution thread. */\r
- xReturn = pxCurrentTCB;\r
-\r
- return xReturn;\r
- }\r
-\r
-#endif\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( ( INCLUDE_xTaskGetSchedulerState == 1 ) || ( configUSE_TIMERS == 1 ) )\r
-\r
- portBASE_TYPE xTaskGetSchedulerState( void )\r
- {\r
- portBASE_TYPE xReturn;\r
-\r
- if( xSchedulerRunning == pdFALSE )\r
- {\r
- xReturn = taskSCHEDULER_NOT_STARTED;\r
- }\r
- else\r
- {\r
- if( uxSchedulerSuspended == ( unsigned portBASE_TYPE ) pdFALSE )\r
- {\r
- xReturn = taskSCHEDULER_RUNNING;\r
- }\r
- else\r
- {\r
- xReturn = taskSCHEDULER_SUSPENDED;\r
- }\r
- }\r
-\r
- return xReturn;\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( configUSE_MUTEXES == 1 )\r
-\r
- void vTaskPriorityInherit( xTaskHandle * const pxMutexHolder )\r
- {\r
- tskTCB * const pxTCB = ( tskTCB * ) pxMutexHolder;\r
-\r
- /* If the mutex was given back by an interrupt while the queue was\r
- locked then the mutex holder might now be NULL. */\r
- if( pxMutexHolder != NULL )\r
- {\r
- if( pxTCB->uxPriority < pxCurrentTCB->uxPriority )\r
- {\r
- /* Adjust the mutex holder state to account for its new priority. */\r
- listSET_LIST_ITEM_VALUE( &( pxTCB->xEventListItem ), configMAX_PRIORITIES - ( portTickType ) pxCurrentTCB->uxPriority );\r
-\r
- /* If the task being modified is in the ready state it will need to\r
- be moved into a new list. */\r
- if( listIS_CONTAINED_WITHIN( &( pxReadyTasksLists[ pxTCB->uxPriority ] ), &( pxTCB->xGenericListItem ) ) != pdFALSE )\r
- {\r
- if( uxListRemove( ( xListItem * ) &( pxTCB->xGenericListItem ) ) == 0 )\r
- {\r
- taskRESET_READY_PRIORITY( pxTCB->uxPriority );\r
- }\r
-\r
- /* Inherit the priority before being moved into the new list. */\r
- pxTCB->uxPriority = pxCurrentTCB->uxPriority;\r
- prvAddTaskToReadyQueue( pxTCB );\r
- }\r
- else\r
- {\r
- /* Just inherit the priority. */\r
- pxTCB->uxPriority = pxCurrentTCB->uxPriority;\r
- }\r
-\r
- traceTASK_PRIORITY_INHERIT( pxTCB, pxCurrentTCB->uxPriority );\r
- }\r
- }\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( configUSE_MUTEXES == 1 )\r
-\r
- void vTaskPriorityDisinherit( xTaskHandle * const pxMutexHolder )\r
- {\r
- tskTCB * const pxTCB = ( tskTCB * ) pxMutexHolder;\r
-\r
- if( pxMutexHolder != NULL )\r
- {\r
- if( pxTCB->uxPriority != pxTCB->uxBasePriority )\r
- {\r
- /* We must be the running task to be able to give the mutex back.\r
- Remove ourselves from the ready list we currently appear in. */\r
- if( uxListRemove( ( xListItem * ) &( pxTCB->xGenericListItem ) ) == 0 )\r
- {\r
- taskRESET_READY_PRIORITY( pxTCB->uxPriority );\r
- }\r
-\r
- /* Disinherit the priority before adding the task into the new\r
- ready list. */\r
- traceTASK_PRIORITY_DISINHERIT( pxTCB, pxTCB->uxBasePriority );\r
- pxTCB->uxPriority = pxTCB->uxBasePriority;\r
- listSET_LIST_ITEM_VALUE( &( pxTCB->xEventListItem ), configMAX_PRIORITIES - ( portTickType ) pxTCB->uxPriority );\r
- prvAddTaskToReadyQueue( pxTCB );\r
- }\r
- }\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( portCRITICAL_NESTING_IN_TCB == 1 )\r
-\r
- void vTaskEnterCritical( void )\r
- {\r
- portDISABLE_INTERRUPTS();\r
-\r
- if( xSchedulerRunning != pdFALSE )\r
- {\r
- ( pxCurrentTCB->uxCriticalNesting )++;\r
- }\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( portCRITICAL_NESTING_IN_TCB == 1 )\r
-\r
- void vTaskExitCritical( void )\r
- {\r
- if( xSchedulerRunning != pdFALSE )\r
- {\r
- if( pxCurrentTCB->uxCriticalNesting > 0U )\r
- {\r
- ( pxCurrentTCB->uxCriticalNesting )--;\r
-\r
- if( pxCurrentTCB->uxCriticalNesting == 0U )\r
- {\r
- portENABLE_INTERRUPTS();\r
- }\r
- }\r
- }\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( configUSE_TICKLESS_IDLE == 1 )\r
-\r
- unsigned portBASE_TYPE uxTaskPendingTicksGet( portBASE_TYPE xResetOnExit )\r
- {\r
- unsigned portBASE_TYPE uxReturn;\r
-\r
- uxReturn = uxMissedTicks;\r
-\r
- if( xResetOnExit == pdTRUE )\r
- {\r
- uxMissedTicks = 0;\r
- }\r
-\r
- return uxReturn;\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-\r
-\r
-\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
-\r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
-\r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- http://www.FreeRTOS.org - Documentation, training, latest information,\r
- license and contact details.\r
-\r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell\r
- the code with commercial support, indemnification, and middleware, under\r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under\r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-/* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE prevents task.h from redefining\r
-all the API functions to use the MPU wrappers. That should only be done when\r
-task.h is included from an application file. */\r
-#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE\r
-\r
-#include "FreeRTOS.h"\r
-#include "task.h"\r
-#include "queue.h"\r
-#include "timers.h"\r
-\r
-#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE\r
-\r
-/* This entire source file will be skipped if the application is not configured\r
-to include software timer functionality. This #if is closed at the very bottom\r
-of this file. If you want to include software timer functionality then ensure\r
-configUSE_TIMERS is set to 1 in FreeRTOSConfig.h. */\r
-#if ( configUSE_TIMERS == 1 )\r
-\r
-/* Misc definitions. */\r
-#define tmrNO_DELAY ( portTickType ) 0U\r
-\r
-/* The definition of the timers themselves. */\r
-typedef struct tmrTimerControl\r
-{\r
- const signed char *pcTimerName; /*<< Text name. This is not used by the kernel, it is included simply to make debugging easier. */\r
- xListItem xTimerListItem; /*<< Standard linked list item as used by all kernel features for event management. */\r
- portTickType xTimerPeriodInTicks;/*<< How quickly and often the timer expires. */\r
- unsigned portBASE_TYPE uxAutoReload; /*<< Set to pdTRUE if the timer should be automatically restarted once expired. Set to pdFALSE if the timer is, in effect, a one shot timer. */\r
- void *pvTimerID; /*<< An ID to identify the timer. This allows the timer to be identified when the same callback is used for multiple timers. */\r
- tmrTIMER_CALLBACK pxCallbackFunction; /*<< The function that will be called when the timer expires. */\r
-} xTIMER;\r
-\r
-/* The definition of messages that can be sent and received on the timer\r
-queue. */\r
-typedef struct tmrTimerQueueMessage\r
-{\r
- portBASE_TYPE xMessageID; /*<< The command being sent to the timer service task. */\r
- portTickType xMessageValue; /*<< An optional value used by a subset of commands, for example, when changing the period of a timer. */\r
- xTIMER * pxTimer; /*<< The timer to which the command will be applied. */\r
-} xTIMER_MESSAGE;\r
-\r
-\r
-/* The list in which active timers are stored. Timers are referenced in expire\r
-time order, with the nearest expiry time at the front of the list. Only the\r
-timer service task is allowed to access xActiveTimerList. */\r
-PRIVILEGED_DATA static xList xActiveTimerList1;\r
-PRIVILEGED_DATA static xList xActiveTimerList2;\r
-PRIVILEGED_DATA static xList *pxCurrentTimerList;\r
-PRIVILEGED_DATA static xList *pxOverflowTimerList;\r
-\r
-/* A queue that is used to send commands to the timer service task. */\r
-PRIVILEGED_DATA static xQueueHandle xTimerQueue = NULL;\r
-\r
-#if ( INCLUDE_xTimerGetTimerDaemonTaskHandle == 1 )\r
-\r
- PRIVILEGED_DATA static xTaskHandle xTimerTaskHandle = NULL;\r
-\r
-#endif\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-/*\r
- * Initialise the infrastructure used by the timer service task if it has not\r
- * been initialised already.\r
- */\r
-static void prvCheckForValidListAndQueue( void ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * The timer service task (daemon). Timer functionality is controlled by this\r
- * task. Other tasks communicate with the timer service task using the\r
- * xTimerQueue queue.\r
- */\r
-static void prvTimerTask( void *pvParameters ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * Called by the timer service task to interpret and process a command it\r
- * received on the timer queue.\r
- */\r
-static void prvProcessReceivedCommands( void ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * Insert the timer into either xActiveTimerList1, or xActiveTimerList2,\r
- * depending on if the expire time causes a timer counter overflow.\r
- */\r
-static portBASE_TYPE prvInsertTimerInActiveList( xTIMER *pxTimer, portTickType xNextExpiryTime, portTickType xTimeNow, portTickType xCommandTime ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * An active timer has reached its expire time. Reload the timer if it is an\r
- * auto reload timer, then call its callback.\r
- */\r
-static void prvProcessExpiredTimer( portTickType xNextExpireTime, portTickType xTimeNow ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * The tick count has overflowed. Switch the timer lists after ensuring the\r
- * current timer list does not still reference some timers.\r
- */\r
-static void prvSwitchTimerLists( portTickType xLastTime ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * Obtain the current tick count, setting *pxTimerListsWereSwitched to pdTRUE\r
- * if a tick count overflow occurred since prvSampleTimeNow() was last called.\r
- */\r
-static portTickType prvSampleTimeNow( portBASE_TYPE *pxTimerListsWereSwitched ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * If the timer list contains any active timers then return the expire time of\r
- * the timer that will expire first and set *pxListWasEmpty to false. If the\r
- * timer list does not contain any timers then return 0 and set *pxListWasEmpty\r
- * to pdTRUE.\r
- */\r
-static portTickType prvGetNextExpireTime( portBASE_TYPE *pxListWasEmpty ) PRIVILEGED_FUNCTION;\r
-\r
-/*\r
- * If a timer has expired, process it. Otherwise, block the timer service task\r
- * until either a timer does expire or a command is received.\r
- */\r
-static void prvProcessTimerOrBlockTask( portTickType xNextExpireTime, portBASE_TYPE xListWasEmpty ) PRIVILEGED_FUNCTION;\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-portBASE_TYPE xTimerCreateTimerTask( void )\r
-{\r
-portBASE_TYPE xReturn = pdFAIL;\r
-\r
- /* This function is called when the scheduler is started if\r
- configUSE_TIMERS is set to 1. Check that the infrastructure used by the\r
- timer service task has been created/initialised. If timers have already\r
- been created then the initialisation will already have been performed. */\r
- prvCheckForValidListAndQueue();\r
-\r
- if( xTimerQueue != NULL )\r
- {\r
- #if ( INCLUDE_xTimerGetTimerDaemonTaskHandle == 1 )\r
- {\r
- /* Create the timer task, storing its handle in xTimerTaskHandle so\r
- it can be returned by the xTimerGetTimerDaemonTaskHandle() function. */\r
- xReturn = xTaskCreate( prvTimerTask, ( const signed char * ) "Tmr Svc", ( unsigned short ) configTIMER_TASK_STACK_DEPTH, NULL, ( ( unsigned portBASE_TYPE ) configTIMER_TASK_PRIORITY ) | portPRIVILEGE_BIT, &xTimerTaskHandle );\r
- }\r
- #else\r
- {\r
- /* Create the timer task without storing its handle. */\r
- xReturn = xTaskCreate( prvTimerTask, ( const signed char * ) "Tmr Svc", ( unsigned short ) configTIMER_TASK_STACK_DEPTH, NULL, ( ( unsigned portBASE_TYPE ) configTIMER_TASK_PRIORITY ) | portPRIVILEGE_BIT, NULL);\r
- }\r
- #endif\r
- }\r
-\r
- configASSERT( xReturn );\r
- return xReturn;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-xTimerHandle xTimerCreate( const signed char *pcTimerName, portTickType xTimerPeriodInTicks, unsigned portBASE_TYPE uxAutoReload, void *pvTimerID, tmrTIMER_CALLBACK pxCallbackFunction )\r
-{\r
-xTIMER *pxNewTimer;\r
-\r
- /* Allocate the timer structure. */\r
- if( xTimerPeriodInTicks == ( portTickType ) 0U )\r
- {\r
- pxNewTimer = NULL;\r
- configASSERT( ( xTimerPeriodInTicks > 0 ) );\r
- }\r
- else\r
- {\r
- pxNewTimer = ( xTIMER * ) pvPortMalloc( sizeof( xTIMER ) );\r
- if( pxNewTimer != NULL )\r
- {\r
- /* Ensure the infrastructure used by the timer service task has been\r
- created/initialised. */\r
- prvCheckForValidListAndQueue();\r
-\r
- /* Initialise the timer structure members using the function parameters. */\r
- pxNewTimer->pcTimerName = pcTimerName;\r
- pxNewTimer->xTimerPeriodInTicks = xTimerPeriodInTicks;\r
- pxNewTimer->uxAutoReload = uxAutoReload;\r
- pxNewTimer->pvTimerID = pvTimerID;\r
- pxNewTimer->pxCallbackFunction = pxCallbackFunction;\r
- vListInitialiseItem( &( pxNewTimer->xTimerListItem ) );\r
-\r
- traceTIMER_CREATE( pxNewTimer );\r
- }\r
- else\r
- {\r
- traceTIMER_CREATE_FAILED();\r
- }\r
- }\r
-\r
- return ( xTimerHandle ) pxNewTimer;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-portBASE_TYPE xTimerGenericCommand( xTimerHandle xTimer, portBASE_TYPE xCommandID, portTickType xOptionalValue, signed portBASE_TYPE *pxHigherPriorityTaskWoken, portTickType xBlockTime )\r
-{\r
-portBASE_TYPE xReturn = pdFAIL;\r
-xTIMER_MESSAGE xMessage;\r
-\r
- /* Send a message to the timer service task to perform a particular action\r
- on a particular timer definition. */\r
- if( xTimerQueue != NULL )\r
- {\r
- /* Send a command to the timer service task to start the xTimer timer. */\r
- xMessage.xMessageID = xCommandID;\r
- xMessage.xMessageValue = xOptionalValue;\r
- xMessage.pxTimer = ( xTIMER * ) xTimer;\r
-\r
- if( pxHigherPriorityTaskWoken == NULL )\r
- {\r
- if( xTaskGetSchedulerState() == taskSCHEDULER_RUNNING )\r
- {\r
- xReturn = xQueueSendToBack( xTimerQueue, &xMessage, xBlockTime );\r
- }\r
- else\r
- {\r
- xReturn = xQueueSendToBack( xTimerQueue, &xMessage, tmrNO_DELAY );\r
- }\r
- }\r
- else\r
- {\r
- xReturn = xQueueSendToBackFromISR( xTimerQueue, &xMessage, pxHigherPriorityTaskWoken );\r
- }\r
-\r
- traceTIMER_COMMAND_SEND( xTimer, xCommandID, xOptionalValue, xReturn );\r
- }\r
-\r
- return xReturn;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-#if ( INCLUDE_xTimerGetTimerDaemonTaskHandle == 1 )\r
-\r
- xTaskHandle xTimerGetTimerDaemonTaskHandle( void )\r
- {\r
- /* If xTimerGetTimerDaemonTaskHandle() is called before the scheduler has been\r
- started, then xTimerTaskHandle will be NULL. */\r
- configASSERT( ( xTimerTaskHandle != NULL ) );\r
- return xTimerTaskHandle;\r
- }\r
-\r
-#endif\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvProcessExpiredTimer( portTickType xNextExpireTime, portTickType xTimeNow )\r
-{\r
-xTIMER *pxTimer;\r
-portBASE_TYPE xResult;\r
-\r
- /* Remove the timer from the list of active timers. A check has already\r
- been performed to ensure the list is not empty. */\r
- pxTimer = ( xTIMER * ) listGET_OWNER_OF_HEAD_ENTRY( pxCurrentTimerList );\r
- uxListRemove( &( pxTimer->xTimerListItem ) );\r
- traceTIMER_EXPIRED( pxTimer );\r
-\r
- /* If the timer is an auto reload timer then calculate the next\r
- expiry time and re-insert the timer in the list of active timers. */\r
- if( pxTimer->uxAutoReload == ( unsigned portBASE_TYPE ) pdTRUE )\r
- {\r
- /* This is the only time a timer is inserted into a list using\r
- a time relative to anything other than the current time. It\r
- will therefore be inserted into the correct list relative to\r
- the time this task thinks it is now, even if a command to\r
- switch lists due to a tick count overflow is already waiting in\r
- the timer queue. */\r
- if( prvInsertTimerInActiveList( pxTimer, ( xNextExpireTime + pxTimer->xTimerPeriodInTicks ), xTimeNow, xNextExpireTime ) == pdTRUE )\r
- {\r
- /* The timer expired before it was added to the active timer\r
- list. Reload it now. */\r
- xResult = xTimerGenericCommand( pxTimer, tmrCOMMAND_START, xNextExpireTime, NULL, tmrNO_DELAY );\r
- configASSERT( xResult );\r
- ( void ) xResult;\r
- }\r
- }\r
-\r
- /* Call the timer callback. */\r
- pxTimer->pxCallbackFunction( ( xTimerHandle ) pxTimer );\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvTimerTask( void *pvParameters )\r
-{\r
-portTickType xNextExpireTime;\r
-portBASE_TYPE xListWasEmpty;\r
-\r
- /* Just to avoid compiler warnings. */\r
- ( void ) pvParameters;\r
-\r
- for( ;; )\r
- {\r
- /* Query the timers list to see if it contains any timers, and if so,\r
- obtain the time at which the next timer will expire. */\r
- xNextExpireTime = prvGetNextExpireTime( &xListWasEmpty );\r
-\r
- /* If a timer has expired, process it. Otherwise, block this task\r
- until either a timer does expire, or a command is received. */\r
- prvProcessTimerOrBlockTask( xNextExpireTime, xListWasEmpty );\r
-\r
- /* Empty the command queue. */\r
- prvProcessReceivedCommands();\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvProcessTimerOrBlockTask( portTickType xNextExpireTime, portBASE_TYPE xListWasEmpty )\r
-{\r
-portTickType xTimeNow;\r
-portBASE_TYPE xTimerListsWereSwitched;\r
-\r
- vTaskSuspendAll();\r
- {\r
- /* Obtain the time now to make an assessment as to whether the timer\r
- has expired or not. If obtaining the time causes the lists to switch\r
- then don't process this timer as any timers that remained in the list\r
- when the lists were switched will have been processed within the\r
- prvSampelTimeNow() function. */\r
- xTimeNow = prvSampleTimeNow( &xTimerListsWereSwitched );\r
- if( xTimerListsWereSwitched == pdFALSE )\r
- {\r
- /* The tick count has not overflowed, has the timer expired? */\r
- if( ( xListWasEmpty == pdFALSE ) && ( xNextExpireTime <= xTimeNow ) )\r
- {\r
- xTaskResumeAll();\r
- prvProcessExpiredTimer( xNextExpireTime, xTimeNow );\r
- }\r
- else\r
- {\r
- /* The tick count has not overflowed, and the next expire\r
- time has not been reached yet. This task should therefore\r
- block to wait for the next expire time or a command to be\r
- received - whichever comes first. The following line cannot\r
- be reached unless xNextExpireTime > xTimeNow, except in the\r
- case when the current timer list is empty. */\r
- vQueueWaitForMessageRestricted( xTimerQueue, ( xNextExpireTime - xTimeNow ) );\r
-\r
- if( xTaskResumeAll() == pdFALSE )\r
- {\r
- /* Yield to wait for either a command to arrive, or the block time\r
- to expire. If a command arrived between the critical section being\r
- exited and this yield then the yield will not cause the task\r
- to block. */\r
- portYIELD_WITHIN_API();\r
- }\r
- }\r
- }\r
- else\r
- {\r
- xTaskResumeAll();\r
- }\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static portTickType prvGetNextExpireTime( portBASE_TYPE *pxListWasEmpty )\r
-{\r
-portTickType xNextExpireTime;\r
-\r
- /* Timers are listed in expiry time order, with the head of the list\r
- referencing the task that will expire first. Obtain the time at which\r
- the timer with the nearest expiry time will expire. If there are no\r
- active timers then just set the next expire time to 0. That will cause\r
- this task to unblock when the tick count overflows, at which point the\r
- timer lists will be switched and the next expiry time can be\r
- re-assessed. */\r
- *pxListWasEmpty = listLIST_IS_EMPTY( pxCurrentTimerList );\r
- if( *pxListWasEmpty == pdFALSE )\r
- {\r
- xNextExpireTime = listGET_ITEM_VALUE_OF_HEAD_ENTRY( pxCurrentTimerList );\r
- }\r
- else\r
- {\r
- /* Ensure the task unblocks when the tick count rolls over. */\r
- xNextExpireTime = ( portTickType ) 0U;\r
- }\r
-\r
- return xNextExpireTime;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static portTickType prvSampleTimeNow( portBASE_TYPE *pxTimerListsWereSwitched )\r
-{\r
-portTickType xTimeNow;\r
-PRIVILEGED_DATA static portTickType xLastTime = ( portTickType ) 0U;\r
-\r
- xTimeNow = xTaskGetTickCount();\r
-\r
- if( xTimeNow < xLastTime )\r
- {\r
- prvSwitchTimerLists( xLastTime );\r
- *pxTimerListsWereSwitched = pdTRUE;\r
- }\r
- else\r
- {\r
- *pxTimerListsWereSwitched = pdFALSE;\r
- }\r
-\r
- xLastTime = xTimeNow;\r
-\r
- return xTimeNow;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static portBASE_TYPE prvInsertTimerInActiveList( xTIMER *pxTimer, portTickType xNextExpiryTime, portTickType xTimeNow, portTickType xCommandTime )\r
-{\r
-portBASE_TYPE xProcessTimerNow = pdFALSE;\r
-\r
- listSET_LIST_ITEM_VALUE( &( pxTimer->xTimerListItem ), xNextExpiryTime );\r
- listSET_LIST_ITEM_OWNER( &( pxTimer->xTimerListItem ), pxTimer );\r
-\r
- if( xNextExpiryTime <= xTimeNow )\r
- {\r
- /* Has the expiry time elapsed between the command to start/reset a\r
- timer was issued, and the time the command was processed? */\r
- if( ( ( portTickType ) ( xTimeNow - xCommandTime ) ) >= pxTimer->xTimerPeriodInTicks )\r
- {\r
- /* The time between a command being issued and the command being\r
- processed actually exceeds the timers period. */\r
- xProcessTimerNow = pdTRUE;\r
- }\r
- else\r
- {\r
- vListInsert( pxOverflowTimerList, &( pxTimer->xTimerListItem ) );\r
- }\r
- }\r
- else\r
- {\r
- if( ( xTimeNow < xCommandTime ) && ( xNextExpiryTime >= xCommandTime ) )\r
- {\r
- /* If, since the command was issued, the tick count has overflowed\r
- but the expiry time has not, then the timer must have already passed\r
- its expiry time and should be processed immediately. */\r
- xProcessTimerNow = pdTRUE;\r
- }\r
- else\r
- {\r
- vListInsert( pxCurrentTimerList, &( pxTimer->xTimerListItem ) );\r
- }\r
- }\r
-\r
- return xProcessTimerNow;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvProcessReceivedCommands( void )\r
-{\r
-xTIMER_MESSAGE xMessage;\r
-xTIMER *pxTimer;\r
-portBASE_TYPE xTimerListsWereSwitched, xResult;\r
-portTickType xTimeNow;\r
-\r
- /* In this case the xTimerListsWereSwitched parameter is not used, but it\r
- must be present in the function call. */\r
- xTimeNow = prvSampleTimeNow( &xTimerListsWereSwitched );\r
-\r
- while( xQueueReceive( xTimerQueue, &xMessage, tmrNO_DELAY ) != pdFAIL )\r
- {\r
- pxTimer = xMessage.pxTimer;\r
-\r
- /* Is the timer already in a list of active timers? When the command\r
- is trmCOMMAND_PROCESS_TIMER_OVERFLOW, the timer will be NULL as the\r
- command is to the task rather than to an individual timer. */\r
- if( pxTimer != NULL )\r
- {\r
- if( listIS_CONTAINED_WITHIN( NULL, &( pxTimer->xTimerListItem ) ) == pdFALSE )\r
- {\r
- /* The timer is in a list, remove it. */\r
- uxListRemove( &( pxTimer->xTimerListItem ) );\r
- }\r
- }\r
-\r
- traceTIMER_COMMAND_RECEIVED( pxTimer, xMessage.xMessageID, xMessage.xMessageValue );\r
-\r
- switch( xMessage.xMessageID )\r
- {\r
- case tmrCOMMAND_START :\r
- /* Start or restart a timer. */\r
- if( prvInsertTimerInActiveList( pxTimer, xMessage.xMessageValue + pxTimer->xTimerPeriodInTicks, xTimeNow, xMessage.xMessageValue ) == pdTRUE )\r
- {\r
- /* The timer expired before it was added to the active timer\r
- list. Process it now. */\r
- pxTimer->pxCallbackFunction( ( xTimerHandle ) pxTimer );\r
-\r
- if( pxTimer->uxAutoReload == ( unsigned portBASE_TYPE ) pdTRUE )\r
- {\r
- xResult = xTimerGenericCommand( pxTimer, tmrCOMMAND_START, xMessage.xMessageValue + pxTimer->xTimerPeriodInTicks, NULL, tmrNO_DELAY );\r
- configASSERT( xResult );\r
- ( void ) xResult;\r
- }\r
- }\r
- break;\r
-\r
- case tmrCOMMAND_STOP :\r
- /* The timer has already been removed from the active list.\r
- There is nothing to do here. */\r
- break;\r
-\r
- case tmrCOMMAND_CHANGE_PERIOD :\r
- pxTimer->xTimerPeriodInTicks = xMessage.xMessageValue;\r
- configASSERT( ( pxTimer->xTimerPeriodInTicks > 0 ) );\r
- prvInsertTimerInActiveList( pxTimer, ( xTimeNow + pxTimer->xTimerPeriodInTicks ), xTimeNow, xTimeNow );\r
- break;\r
-\r
- case tmrCOMMAND_DELETE :\r
- /* The timer has already been removed from the active list,\r
- just free up the memory. */\r
- vPortFree( pxTimer );\r
- break;\r
-\r
- default :\r
- /* Don't expect to get here. */\r
- break;\r
- }\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvSwitchTimerLists( portTickType xLastTime )\r
-{\r
-portTickType xNextExpireTime, xReloadTime;\r
-xList *pxTemp;\r
-xTIMER *pxTimer;\r
-portBASE_TYPE xResult;\r
-\r
- /* Remove compiler warnings if configASSERT() is not defined. */\r
- ( void ) xLastTime;\r
-\r
- /* The tick count has overflowed. The timer lists must be switched.\r
- If there are any timers still referenced from the current timer list\r
- then they must have expired and should be processed before the lists\r
- are switched. */\r
- while( listLIST_IS_EMPTY( pxCurrentTimerList ) == pdFALSE )\r
- {\r
- xNextExpireTime = listGET_ITEM_VALUE_OF_HEAD_ENTRY( pxCurrentTimerList );\r
-\r
- /* Remove the timer from the list. */\r
- pxTimer = ( xTIMER * ) listGET_OWNER_OF_HEAD_ENTRY( pxCurrentTimerList );\r
- uxListRemove( &( pxTimer->xTimerListItem ) );\r
-\r
- /* Execute its callback, then send a command to restart the timer if\r
- it is an auto-reload timer. It cannot be restarted here as the lists\r
- have not yet been switched. */\r
- pxTimer->pxCallbackFunction( ( xTimerHandle ) pxTimer );\r
-\r
- if( pxTimer->uxAutoReload == ( unsigned portBASE_TYPE ) pdTRUE )\r
- {\r
- /* Calculate the reload value, and if the reload value results in\r
- the timer going into the same timer list then it has already expired\r
- and the timer should be re-inserted into the current list so it is\r
- processed again within this loop. Otherwise a command should be sent\r
- to restart the timer to ensure it is only inserted into a list after\r
- the lists have been swapped. */\r
- xReloadTime = ( xNextExpireTime + pxTimer->xTimerPeriodInTicks );\r
- if( xReloadTime > xNextExpireTime )\r
- {\r
- listSET_LIST_ITEM_VALUE( &( pxTimer->xTimerListItem ), xReloadTime );\r
- listSET_LIST_ITEM_OWNER( &( pxTimer->xTimerListItem ), pxTimer );\r
- vListInsert( pxCurrentTimerList, &( pxTimer->xTimerListItem ) );\r
- }\r
- else\r
- {\r
- xResult = xTimerGenericCommand( pxTimer, tmrCOMMAND_START, xNextExpireTime, NULL, tmrNO_DELAY );\r
- configASSERT( xResult );\r
- ( void ) xResult;\r
- }\r
- }\r
- }\r
-\r
- pxTemp = pxCurrentTimerList;\r
- pxCurrentTimerList = pxOverflowTimerList;\r
- pxOverflowTimerList = pxTemp;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvCheckForValidListAndQueue( void )\r
-{\r
- /* Check that the list from which active timers are referenced, and the\r
- queue used to communicate with the timer service, have been\r
- initialised. */\r
- taskENTER_CRITICAL();\r
- {\r
- if( xTimerQueue == NULL )\r
- {\r
- vListInitialise( &xActiveTimerList1 );\r
- vListInitialise( &xActiveTimerList2 );\r
- pxCurrentTimerList = &xActiveTimerList1;\r
- pxOverflowTimerList = &xActiveTimerList2;\r
- xTimerQueue = xQueueCreate( ( unsigned portBASE_TYPE ) configTIMER_QUEUE_LENGTH, sizeof( xTIMER_MESSAGE ) );\r
- }\r
- }\r
- taskEXIT_CRITICAL();\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer )\r
-{\r
-portBASE_TYPE xTimerIsInActiveList;\r
-xTIMER *pxTimer = ( xTIMER * ) xTimer;\r
-\r
- /* Is the timer in the list of active timers? */\r
- taskENTER_CRITICAL();\r
- {\r
- /* Checking to see if it is in the NULL list in effect checks to see if\r
- it is referenced from either the current or the overflow timer lists in\r
- one go, but the logic has to be reversed, hence the '!'. */\r
- xTimerIsInActiveList = !( listIS_CONTAINED_WITHIN( NULL, &( pxTimer->xTimerListItem ) ) );\r
- }\r
- taskEXIT_CRITICAL();\r
-\r
- return xTimerIsInActiveList;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-void *pvTimerGetTimerID( xTimerHandle xTimer )\r
-{\r
-xTIMER *pxTimer = ( xTIMER * ) xTimer;\r
-\r
- return pxTimer->pvTimerID;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-/* This entire source file will be skipped if the application is not configured\r
-to include software timer functionality. If you want to include software timer\r
-functionality then ensure configUSE_TIMERS is set to 1 in FreeRTOSConfig.h. */\r
-#endif /* configUSE_TIMERS == 1 */\r
+++ /dev/null
-/*\r
- FreeRTOS V7.2.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
-\r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong? *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest information, \r
- license and contact details.\r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
-\r
-\r
-#ifndef TIMERS_H\r
-#define TIMERS_H\r
-\r
-#ifndef INC_FREERTOS_H\r
- #error "include FreeRTOS.h must appear in source files before include timers.h"\r
-#endif\r
-\r
-#include "portable.h"\r
-#include "list.h"\r
-#include "task.h"\r
-\r
-#ifdef __cplusplus\r
-extern "C" {\r
-#endif\r
-\r
-/* IDs for commands that can be sent/received on the timer queue. These are to\r
-be used solely through the macros that make up the public software timer API,\r
-as defined below. */\r
-#define tmrCOMMAND_START 0\r
-#define tmrCOMMAND_STOP 1\r
-#define tmrCOMMAND_CHANGE_PERIOD 2\r
-#define tmrCOMMAND_DELETE 3\r
-\r
-/*-----------------------------------------------------------\r
- * MACROS AND DEFINITIONS\r
- *----------------------------------------------------------*/\r
-\r
- /**\r
- * Type by which software timers are referenced. For example, a call to\r
- * xTimerCreate() returns an xTimerHandle variable that can then be used to\r
- * reference the subject timer in calls to other software timer API functions\r
- * (for example, xTimerStart(), xTimerReset(), etc.).\r
- */\r
-typedef void * xTimerHandle;\r
-\r
-/* Define the prototype to which timer callback functions must conform. */\r
-typedef void (*tmrTIMER_CALLBACK)( xTimerHandle xTimer );\r
-\r
-/**\r
- * xTimerHandle xTimerCreate( const signed char *pcTimerName,\r
- * portTickType xTimerPeriodInTicks,\r
- * unsigned portBASE_TYPE uxAutoReload,\r
- * void * pvTimerID,\r
- * tmrTIMER_CALLBACK pxCallbackFunction );\r
- *\r
- * Creates a new software timer instance. This allocates the storage required\r
- * by the new timer, initialises the new timers internal state, and returns a\r
- * handle by which the new timer can be referenced.\r
- *\r
- * Timers are created in the dormant state. The xTimerStart(), xTimerReset(),\r
- * xTimerStartFromISR(), xTimerResetFromISR(), xTimerChangePeriod() and\r
- * xTimerChangePeriodFromISR() API functions can all be used to transition a timer into the\r
- * active state.\r
- *\r
- * @param pcTimerName A text name that is assigned to the timer. This is done\r
- * purely to assist debugging. The kernel itself only ever references a timer by\r
- * its handle, and never by its name.\r
- *\r
- * @param xTimerPeriodInTicks The timer period. The time is defined in tick periods so\r
- * the constant portTICK_RATE_MS can be used to convert a time that has been\r
- * specified in milliseconds. For example, if the timer must expire after 100\r
- * ticks, then xTimerPeriodInTicks should be set to 100. Alternatively, if the timer\r
- * must expire after 500ms, then xPeriod can be set to ( 500 / portTICK_RATE_MS )\r
- * provided configTICK_RATE_HZ is less than or equal to 1000.\r
- *\r
- * @param uxAutoReload If uxAutoReload is set to pdTRUE then the timer will\r
- * expire repeatedly with a frequency set by the xTimerPeriodInTicks parameter. If\r
- * uxAutoReload is set to pdFALSE then the timer will be a one-shot timer and\r
- * enter the dormant state after it expires.\r
- *\r
- * @param pvTimerID An identifier that is assigned to the timer being created.\r
- * Typically this would be used in the timer callback function to identify which\r
- * timer expired when the same callback function is assigned to more than one\r
- * timer.\r
- *\r
- * @param pxCallbackFunction The function to call when the timer expires.\r
- * Callback functions must have the prototype defined by tmrTIMER_CALLBACK,\r
- * which is "void vCallbackFunction( xTimerHandle xTimer );".\r
- *\r
- * @return If the timer is successfully create then a handle to the newly\r
- * created timer is returned. If the timer cannot be created (because either\r
- * there is insufficient FreeRTOS heap remaining to allocate the timer\r
- * structures, or the timer period was set to 0) then 0 is returned.\r
- *\r
- * Example usage:\r
- *\r
- * #define NUM_TIMERS 5\r
- *\r
- * // An array to hold handles to the created timers.\r
- * xTimerHandle xTimers[ NUM_TIMERS ];\r
- *\r
- * // An array to hold a count of the number of times each timer expires.\r
- * long lExpireCounters[ NUM_TIMERS ] = { 0 };\r
- *\r
- * // Define a callback function that will be used by multiple timer instances.\r
- * // The callback function does nothing but count the number of times the\r
- * // associated timer expires, and stop the timer once the timer has expired\r
- * // 10 times.\r
- * void vTimerCallback( xTimerHandle pxTimer )\r
- * {\r
- * long lArrayIndex;\r
- * const long xMaxExpiryCountBeforeStopping = 10;\r
- *\r
- * // Optionally do something if the pxTimer parameter is NULL.\r
- * configASSERT( pxTimer );\r
- * \r
- * // Which timer expired?\r
- * lArrayIndex = ( long ) pvTimerGetTimerID( pxTimer );\r
- *\r
- * // Increment the number of times that pxTimer has expired.\r
- * lExpireCounters[ lArrayIndex ] += 1;\r
- *\r
- * // If the timer has expired 10 times then stop it from running.\r
- * if( lExpireCounters[ lArrayIndex ] == xMaxExpiryCountBeforeStopping )\r
- * {\r
- * // Do not use a block time if calling a timer API function from a\r
- * // timer callback function, as doing so could cause a deadlock!\r
- * xTimerStop( pxTimer, 0 );\r
- * }\r
- * }\r
- *\r
- * void main( void )\r
- * {\r
- * long x;\r
- *\r
- * // Create then start some timers. Starting the timers before the scheduler\r
- * // has been started means the timers will start running immediately that\r
- * // the scheduler starts.\r
- * for( x = 0; x < NUM_TIMERS; x++ )\r
- * {\r
- * xTimers[ x ] = xTimerCreate( "Timer", // Just a text name, not used by the kernel.\r
- * ( 100 * x ), // The timer period in ticks.\r
- * pdTRUE, // The timers will auto-reload themselves when they expire.\r
- * ( void * ) x, // Assign each timer a unique id equal to its array index.\r
- * vTimerCallback // Each timer calls the same callback when it expires.\r
- * );\r
- *\r
- * if( xTimers[ x ] == NULL )\r
- * {\r
- * // The timer was not created.\r
- * }\r
- * else\r
- * {\r
- * // Start the timer. No block time is specified, and even if one was\r
- * // it would be ignored because the scheduler has not yet been\r
- * // started.\r
- * if( xTimerStart( xTimers[ x ], 0 ) != pdPASS )\r
- * {\r
- * // The timer could not be set into the Active state.\r
- * }\r
- * }\r
- * }\r
- *\r
- * // ...\r
- * // Create tasks here.\r
- * // ...\r
- *\r
- * // Starting the scheduler will start the timers running as they have already\r
- * // been set into the active state.\r
- * xTaskStartScheduler();\r
- *\r
- * // Should not reach here.\r
- * for( ;; );\r
- * }\r
- */\r
-xTimerHandle xTimerCreate( const signed char *pcTimerName, portTickType xTimerPeriodInTicks, unsigned portBASE_TYPE uxAutoReload, void * pvTimerID, tmrTIMER_CALLBACK pxCallbackFunction ) PRIVILEGED_FUNCTION;\r
-\r
-/**\r
- * void *pvTimerGetTimerID( xTimerHandle xTimer );\r
- *\r
- * Returns the ID assigned to the timer.\r
- *\r
- * IDs are assigned to timers using the pvTimerID parameter of the call to\r
- * xTimerCreated() that was used to create the timer.\r
- *\r
- * If the same callback function is assigned to multiple timers then the timer\r
- * ID can be used within the callback function to identify which timer actually\r
- * expired.\r
- *\r
- * @param xTimer The timer being queried.\r
- *\r
- * @return The ID assigned to the timer being queried.\r
- *\r
- * Example usage:\r
- *\r
- * See the xTimerCreate() API function example usage scenario.\r
- */\r
-void *pvTimerGetTimerID( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;\r
-\r
-/**\r
- * portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer );\r
- *\r
- * Queries a timer to see if it is active or dormant.\r
- *\r
- * A timer will be dormant if:\r
- * 1) It has been created but not started, or\r
- * 2) It is an expired on-shot timer that has not been restarted.\r
- *\r
- * Timers are created in the dormant state. The xTimerStart(), xTimerReset(),\r
- * xTimerStartFromISR(), xTimerResetFromISR(), xTimerChangePeriod() and\r
- * xTimerChangePeriodFromISR() API functions can all be used to transition a timer into the\r
- * active state.\r
- *\r
- * @param xTimer The timer being queried.\r
- *\r
- * @return pdFALSE will be returned if the timer is dormant. A value other than\r
- * pdFALSE will be returned if the timer is active.\r
- *\r
- * Example usage:\r
- *\r
- * // This function assumes xTimer has already been created.\r
- * void vAFunction( xTimerHandle xTimer )\r
- * {\r
- * if( xTimerIsTimerActive( xTimer ) != pdFALSE ) // or more simply and equivalently "if( xTimerIsTimerActive( xTimer ) )"\r
- * {\r
- * // xTimer is active, do something.\r
- * }\r
- * else\r
- * {\r
- * // xTimer is not active, do something else.\r
- * }\r
- * }\r
- */\r
-portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;\r
-\r
-/**\r
- * xTimerGetTimerDaemonTaskHandle() is only available if \r
- * INCLUDE_xTimerGetTimerDaemonTaskHandle is set to 1 in FreeRTOSConfig.h.\r
- *\r
- * Simply returns the handle of the timer service/daemon task. It it not valid\r
- * to call xTimerGetTimerDaemonTaskHandle() before the scheduler has been started.\r
- */\r
-xTaskHandle xTimerGetTimerDaemonTaskHandle( void );\r
-\r
-/**\r
- * portBASE_TYPE xTimerStart( xTimerHandle xTimer, portTickType xBlockTime );\r
- *\r
- * Timer functionality is provided by a timer service/daemon task. Many of the\r
- * public FreeRTOS timer API functions send commands to the timer service task\r
- * though a queue called the timer command queue. The timer command queue is\r
- * private to the kernel itself and is not directly accessible to application\r
- * code. The length of the timer command queue is set by the\r
- * configTIMER_QUEUE_LENGTH configuration constant.\r
- *\r
- * xTimerStart() starts a timer that was previously created using the\r
- * xTimerCreate() API function. If the timer had already been started and was\r
- * already in the active state, then xTimerStart() has equivalent functionality\r
- * to the xTimerReset() API function.\r
- *\r
- * Starting a timer ensures the timer is in the active state. If the timer\r
- * is not stopped, deleted, or reset in the mean time, the callback function\r
- * associated with the timer will get called 'n' ticks after xTimerStart() was\r
- * called, where 'n' is the timers defined period.\r
- *\r
- * It is valid to call xTimerStart() before the scheduler has been started, but\r
- * when this is done the timer will not actually start until the scheduler is\r
- * started, and the timers expiry time will be relative to when the scheduler is\r
- * started, not relative to when xTimerStart() was called.\r
- *\r
- * The configUSE_TIMERS configuration constant must be set to 1 for xTimerStart()\r
- * to be available.\r
- *\r
- * @param xTimer The handle of the timer being started/restarted.\r
- *\r
- * @param xBlockTime Specifies the time, in ticks, that the calling task should\r
- * be held in the Blocked state to wait for the start command to be successfully\r
- * sent to the timer command queue, should the queue already be full when\r
- * xTimerStart() was called. xBlockTime is ignored if xTimerStart() is called\r
- * before the scheduler is started.\r
- *\r
- * @return pdFAIL will be returned if the start command could not be sent to\r
- * the timer command queue even after xBlockTime ticks had passed. pdPASS will\r
- * be returned if the command was successfully sent to the timer command queue.\r
- * When the command is actually processed will depend on the priority of the\r
- * timer service/daemon task relative to other tasks in the system, although the\r
- * timers expiry time is relative to when xTimerStart() is actually called. The\r
- * timer service/daemon task priority is set by the configTIMER_TASK_PRIORITY\r
- * configuration constant.\r
- *\r
- * Example usage:\r
- *\r
- * See the xTimerCreate() API function example usage scenario.\r
- *\r
- */\r
-#define xTimerStart( xTimer, xBlockTime ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_START, ( xTaskGetTickCount() ), NULL, ( xBlockTime ) )\r
-\r
-/**\r
- * portBASE_TYPE xTimerStop( xTimerHandle xTimer, portTickType xBlockTime );\r
- *\r
- * Timer functionality is provided by a timer service/daemon task. Many of the\r
- * public FreeRTOS timer API functions send commands to the timer service task\r
- * though a queue called the timer command queue. The timer command queue is\r
- * private to the kernel itself and is not directly accessible to application\r
- * code. The length of the timer command queue is set by the\r
- * configTIMER_QUEUE_LENGTH configuration constant.\r
- *\r
- * xTimerStop() stops a timer that was previously started using either of the\r
- * The xTimerStart(), xTimerReset(), xTimerStartFromISR(), xTimerResetFromISR(),\r
- * xTimerChangePeriod() or xTimerChangePeriodFromISR() API functions.\r
- *\r
- * Stopping a timer ensures the timer is not in the active state.\r
- *\r
- * The configUSE_TIMERS configuration constant must be set to 1 for xTimerStop()\r
- * to be available.\r
- *\r
- * @param xTimer The handle of the timer being stopped.\r
- *\r
- * @param xBlockTime Specifies the time, in ticks, that the calling task should\r
- * be held in the Blocked state to wait for the stop command to be successfully\r
- * sent to the timer command queue, should the queue already be full when\r
- * xTimerStop() was called. xBlockTime is ignored if xTimerStop() is called\r
- * before the scheduler is started.\r
- *\r
- * @return pdFAIL will be returned if the stop command could not be sent to\r
- * the timer command queue even after xBlockTime ticks had passed. pdPASS will\r
- * be returned if the command was successfully sent to the timer command queue.\r
- * When the command is actually processed will depend on the priority of the\r
- * timer service/daemon task relative to other tasks in the system. The timer\r
- * service/daemon task priority is set by the configTIMER_TASK_PRIORITY\r
- * configuration constant.\r
- *\r
- * Example usage:\r
- *\r
- * See the xTimerCreate() API function example usage scenario.\r
- *\r
- */\r
-#define xTimerStop( xTimer, xBlockTime ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_STOP, 0U, NULL, ( xBlockTime ) )\r
-\r
-/**\r
- * portBASE_TYPE xTimerChangePeriod( xTimerHandle xTimer,\r
- * portTickType xNewPeriod,\r
- * portTickType xBlockTime );\r
- *\r
- * Timer functionality is provided by a timer service/daemon task. Many of the\r
- * public FreeRTOS timer API functions send commands to the timer service task\r
- * though a queue called the timer command queue. The timer command queue is\r
- * private to the kernel itself and is not directly accessible to application\r
- * code. The length of the timer command queue is set by the\r
- * configTIMER_QUEUE_LENGTH configuration constant.\r
- *\r
- * xTimerChangePeriod() changes the period of a timer that was previously\r
- * created using the xTimerCreate() API function.\r
- *\r
- * xTimerChangePeriod() can be called to change the period of an active or\r
- * dormant state timer.\r
- *\r
- * The configUSE_TIMERS configuration constant must be set to 1 for\r
- * xTimerChangePeriod() to be available.\r
- *\r
- * @param xTimer The handle of the timer that is having its period changed.\r
- *\r
- * @param xNewPeriod The new period for xTimer. Timer periods are specified in\r
- * tick periods, so the constant portTICK_RATE_MS can be used to convert a time\r
- * that has been specified in milliseconds. For example, if the timer must\r
- * expire after 100 ticks, then xNewPeriod should be set to 100. Alternatively,\r
- * if the timer must expire after 500ms, then xNewPeriod can be set to\r
- * ( 500 / portTICK_RATE_MS ) provided configTICK_RATE_HZ is less than\r
- * or equal to 1000.\r
- *\r
- * @param xBlockTime Specifies the time, in ticks, that the calling task should\r
- * be held in the Blocked state to wait for the change period command to be\r
- * successfully sent to the timer command queue, should the queue already be\r
- * full when xTimerChangePeriod() was called. xBlockTime is ignored if\r
- * xTimerChangePeriod() is called before the scheduler is started.\r
- *\r
- * @return pdFAIL will be returned if the change period command could not be\r
- * sent to the timer command queue even after xBlockTime ticks had passed.\r
- * pdPASS will be returned if the command was successfully sent to the timer\r
- * command queue. When the command is actually processed will depend on the\r
- * priority of the timer service/daemon task relative to other tasks in the\r
- * system. The timer service/daemon task priority is set by the\r
- * configTIMER_TASK_PRIORITY configuration constant.\r
- *\r
- * Example usage:\r
- *\r
- * // This function assumes xTimer has already been created. If the timer\r
- * // referenced by xTimer is already active when it is called, then the timer\r
- * // is deleted. If the timer referenced by xTimer is not active when it is\r
- * // called, then the period of the timer is set to 500ms and the timer is\r
- * // started.\r
- * void vAFunction( xTimerHandle xTimer )\r
- * {\r
- * if( xTimerIsTimerActive( xTimer ) != pdFALSE ) // or more simply and equivalently "if( xTimerIsTimerActive( xTimer ) )"\r
- * {\r
- * // xTimer is already active - delete it.\r
- * xTimerDelete( xTimer );\r
- * }\r
- * else\r
- * {\r
- * // xTimer is not active, change its period to 500ms. This will also\r
- * // cause the timer to start. Block for a maximum of 100 ticks if the\r
- * // change period command cannot immediately be sent to the timer\r
- * // command queue.\r
- * if( xTimerChangePeriod( xTimer, 500 / portTICK_RATE_MS, 100 ) == pdPASS )\r
- * {\r
- * // The command was successfully sent.\r
- * }\r
- * else\r
- * {\r
- * // The command could not be sent, even after waiting for 100 ticks\r
- * // to pass. Take appropriate action here.\r
- * }\r
- * }\r
- * }\r
- */\r
- #define xTimerChangePeriod( xTimer, xNewPeriod, xBlockTime ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_CHANGE_PERIOD, ( xNewPeriod ), NULL, ( xBlockTime ) )\r
-\r
-/**\r
- * portBASE_TYPE xTimerDelete( xTimerHandle xTimer, portTickType xBlockTime );\r
- *\r
- * Timer functionality is provided by a timer service/daemon task. Many of the\r
- * public FreeRTOS timer API functions send commands to the timer service task\r
- * though a queue called the timer command queue. The timer command queue is\r
- * private to the kernel itself and is not directly accessible to application\r
- * code. The length of the timer command queue is set by the\r
- * configTIMER_QUEUE_LENGTH configuration constant.\r
- *\r
- * xTimerDelete() deletes a timer that was previously created using the\r
- * xTimerCreate() API function.\r
- *\r
- * The configUSE_TIMERS configuration constant must be set to 1 for\r
- * xTimerDelete() to be available.\r
- *\r
- * @param xTimer The handle of the timer being deleted.\r
- *\r
- * @param xBlockTime Specifies the time, in ticks, that the calling task should\r
- * be held in the Blocked state to wait for the delete command to be\r
- * successfully sent to the timer command queue, should the queue already be\r
- * full when xTimerDelete() was called. xBlockTime is ignored if xTimerDelete()\r
- * is called before the scheduler is started.\r
- *\r
- * @return pdFAIL will be returned if the delete command could not be sent to\r
- * the timer command queue even after xBlockTime ticks had passed. pdPASS will\r
- * be returned if the command was successfully sent to the timer command queue.\r
- * When the command is actually processed will depend on the priority of the\r
- * timer service/daemon task relative to other tasks in the system. The timer\r
- * service/daemon task priority is set by the configTIMER_TASK_PRIORITY\r
- * configuration constant.\r
- *\r
- * Example usage:\r
- *\r
- * See the xTimerChangePeriod() API function example usage scenario.\r
- */\r
-#define xTimerDelete( xTimer, xBlockTime ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_DELETE, 0U, NULL, ( xBlockTime ) )\r
-\r
-/**\r
- * portBASE_TYPE xTimerReset( xTimerHandle xTimer, portTickType xBlockTime );\r
- *\r
- * Timer functionality is provided by a timer service/daemon task. Many of the\r
- * public FreeRTOS timer API functions send commands to the timer service task\r
- * though a queue called the timer command queue. The timer command queue is\r
- * private to the kernel itself and is not directly accessible to application\r
- * code. The length of the timer command queue is set by the\r
- * configTIMER_QUEUE_LENGTH configuration constant.\r
- *\r
- * xTimerReset() re-starts a timer that was previously created using the\r
- * xTimerCreate() API function. If the timer had already been started and was\r
- * already in the active state, then xTimerReset() will cause the timer to\r
- * re-evaluate its expiry time so that it is relative to when xTimerReset() was\r
- * called. If the timer was in the dormant state then xTimerReset() has\r
- * equivalent functionality to the xTimerStart() API function.\r
- *\r
- * Resetting a timer ensures the timer is in the active state. If the timer\r
- * is not stopped, deleted, or reset in the mean time, the callback function\r
- * associated with the timer will get called 'n' ticks after xTimerReset() was\r
- * called, where 'n' is the timers defined period.\r
- *\r
- * It is valid to call xTimerReset() before the scheduler has been started, but\r
- * when this is done the timer will not actually start until the scheduler is\r
- * started, and the timers expiry time will be relative to when the scheduler is\r
- * started, not relative to when xTimerReset() was called.\r
- *\r
- * The configUSE_TIMERS configuration constant must be set to 1 for xTimerReset()\r
- * to be available.\r
- *\r
- * @param xTimer The handle of the timer being reset/started/restarted.\r
- *\r
- * @param xBlockTime Specifies the time, in ticks, that the calling task should\r
- * be held in the Blocked state to wait for the reset command to be successfully\r
- * sent to the timer command queue, should the queue already be full when\r
- * xTimerReset() was called. xBlockTime is ignored if xTimerReset() is called\r
- * before the scheduler is started.\r
- *\r
- * @return pdFAIL will be returned if the reset command could not be sent to\r
- * the timer command queue even after xBlockTime ticks had passed. pdPASS will\r
- * be returned if the command was successfully sent to the timer command queue.\r
- * When the command is actually processed will depend on the priority of the\r
- * timer service/daemon task relative to other tasks in the system, although the\r
- * timers expiry time is relative to when xTimerStart() is actually called. The\r
- * timer service/daemon task priority is set by the configTIMER_TASK_PRIORITY\r
- * configuration constant.\r
- *\r
- * Example usage:\r
- *\r
- * // When a key is pressed, an LCD back-light is switched on. If 5 seconds pass\r
- * // without a key being pressed, then the LCD back-light is switched off. In\r
- * // this case, the timer is a one-shot timer.\r
- *\r
- * xTimerHandle xBacklightTimer = NULL;\r
- *\r
- * // The callback function assigned to the one-shot timer. In this case the\r
- * // parameter is not used.\r
- * void vBacklightTimerCallback( xTimerHandle pxTimer )\r
- * {\r
- * // The timer expired, therefore 5 seconds must have passed since a key\r
- * // was pressed. Switch off the LCD back-light.\r
- * vSetBacklightState( BACKLIGHT_OFF );\r
- * }\r
- *\r
- * // The key press event handler.\r
- * void vKeyPressEventHandler( char cKey )\r
- * {\r
- * // Ensure the LCD back-light is on, then reset the timer that is\r
- * // responsible for turning the back-light off after 5 seconds of\r
- * // key inactivity. Wait 10 ticks for the command to be successfully sent\r
- * // if it cannot be sent immediately.\r
- * vSetBacklightState( BACKLIGHT_ON );\r
- * if( xTimerReset( xBacklightTimer, 100 ) != pdPASS )\r
- * {\r
- * // The reset command was not executed successfully. Take appropriate\r
- * // action here.\r
- * }\r
- *\r
- * // Perform the rest of the key processing here.\r
- * }\r
- *\r
- * void main( void )\r
- * {\r
- * long x;\r
- *\r
- * // Create then start the one-shot timer that is responsible for turning\r
- * // the back-light off if no keys are pressed within a 5 second period.\r
- * xBacklightTimer = xTimerCreate( "BacklightTimer", // Just a text name, not used by the kernel.\r
- * ( 5000 / portTICK_RATE_MS), // The timer period in ticks.\r
- * pdFALSE, // The timer is a one-shot timer.\r
- * 0, // The id is not used by the callback so can take any value.\r
- * vBacklightTimerCallback // The callback function that switches the LCD back-light off.\r
- * );\r
- *\r
- * if( xBacklightTimer == NULL )\r
- * {\r
- * // The timer was not created.\r
- * }\r
- * else\r
- * {\r
- * // Start the timer. No block time is specified, and even if one was\r
- * // it would be ignored because the scheduler has not yet been\r
- * // started.\r
- * if( xTimerStart( xBacklightTimer, 0 ) != pdPASS )\r
- * {\r
- * // The timer could not be set into the Active state.\r
- * }\r
- * }\r
- *\r
- * // ...\r
- * // Create tasks here.\r
- * // ...\r
- *\r
- * // Starting the scheduler will start the timer running as it has already\r
- * // been set into the active state.\r
- * xTaskStartScheduler();\r
- *\r
- * // Should not reach here.\r
- * for( ;; );\r
- * }\r
- */\r
-#define xTimerReset( xTimer, xBlockTime ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_START, ( xTaskGetTickCount() ), NULL, ( xBlockTime ) )\r
-\r
-/**\r
- * portBASE_TYPE xTimerStartFromISR( xTimerHandle xTimer,\r
- * portBASE_TYPE *pxHigherPriorityTaskWoken );\r
- *\r
- * A version of xTimerStart() that can be called from an interrupt service\r
- * routine.\r
- *\r
- * @param xTimer The handle of the timer being started/restarted.\r
- *\r
- * @param pxHigherPriorityTaskWoken The timer service/daemon task spends most\r
- * of its time in the Blocked state, waiting for messages to arrive on the timer\r
- * command queue. Calling xTimerStartFromISR() writes a message to the timer\r
- * command queue, so has the potential to transition the timer service/daemon\r
- * task out of the Blocked state. If calling xTimerStartFromISR() causes the\r
- * timer service/daemon task to leave the Blocked state, and the timer service/\r
- * daemon task has a priority equal to or greater than the currently executing\r
- * task (the task that was interrupted), then *pxHigherPriorityTaskWoken will\r
- * get set to pdTRUE internally within the xTimerStartFromISR() function. If\r
- * xTimerStartFromISR() sets this value to pdTRUE then a context switch should\r
- * be performed before the interrupt exits.\r
- *\r
- * @return pdFAIL will be returned if the start command could not be sent to\r
- * the timer command queue. pdPASS will be returned if the command was\r
- * successfully sent to the timer command queue. When the command is actually\r
- * processed will depend on the priority of the timer service/daemon task\r
- * relative to other tasks in the system, although the timers expiry time is\r
- * relative to when xTimerStartFromISR() is actually called. The timer service/daemon\r
- * task priority is set by the configTIMER_TASK_PRIORITY configuration constant.\r
- *\r
- * Example usage:\r
- *\r
- * // This scenario assumes xBacklightTimer has already been created. When a\r
- * // key is pressed, an LCD back-light is switched on. If 5 seconds pass\r
- * // without a key being pressed, then the LCD back-light is switched off. In\r
- * // this case, the timer is a one-shot timer, and unlike the example given for\r
- * // the xTimerReset() function, the key press event handler is an interrupt\r
- * // service routine.\r
- *\r
- * // The callback function assigned to the one-shot timer. In this case the\r
- * // parameter is not used.\r
- * void vBacklightTimerCallback( xTimerHandle pxTimer )\r
- * {\r
- * // The timer expired, therefore 5 seconds must have passed since a key\r
- * // was pressed. Switch off the LCD back-light.\r
- * vSetBacklightState( BACKLIGHT_OFF );\r
- * }\r
- *\r
- * // The key press interrupt service routine.\r
- * void vKeyPressEventInterruptHandler( void )\r
- * {\r
- * portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;\r
- *\r
- * // Ensure the LCD back-light is on, then restart the timer that is\r
- * // responsible for turning the back-light off after 5 seconds of\r
- * // key inactivity. This is an interrupt service routine so can only\r
- * // call FreeRTOS API functions that end in "FromISR".\r
- * vSetBacklightState( BACKLIGHT_ON );\r
- *\r
- * // xTimerStartFromISR() or xTimerResetFromISR() could be called here\r
- * // as both cause the timer to re-calculate its expiry time.\r
- * // xHigherPriorityTaskWoken was initialised to pdFALSE when it was\r
- * // declared (in this function).\r
- * if( xTimerStartFromISR( xBacklightTimer, &xHigherPriorityTaskWoken ) != pdPASS )\r
- * {\r
- * // The start command was not executed successfully. Take appropriate\r
- * // action here.\r
- * }\r
- *\r
- * // Perform the rest of the key processing here.\r
- *\r
- * // If xHigherPriorityTaskWoken equals pdTRUE, then a context switch\r
- * // should be performed. The syntax required to perform a context switch\r
- * // from inside an ISR varies from port to port, and from compiler to\r
- * // compiler. Inspect the demos for the port you are using to find the\r
- * // actual syntax required.\r
- * if( xHigherPriorityTaskWoken != pdFALSE )\r
- * {\r
- * // Call the interrupt safe yield function here (actual function\r
- * // depends on the FreeRTOS port being used.\r
- * }\r
- * }\r
- */\r
-#define xTimerStartFromISR( xTimer, pxHigherPriorityTaskWoken ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_START, ( xTaskGetTickCountFromISR() ), ( pxHigherPriorityTaskWoken ), 0U )\r
-\r
-/**\r
- * portBASE_TYPE xTimerStopFromISR( xTimerHandle xTimer,\r
- * portBASE_TYPE *pxHigherPriorityTaskWoken );\r
- *\r
- * A version of xTimerStop() that can be called from an interrupt service\r
- * routine.\r
- *\r
- * @param xTimer The handle of the timer being stopped.\r
- *\r
- * @param pxHigherPriorityTaskWoken The timer service/daemon task spends most\r
- * of its time in the Blocked state, waiting for messages to arrive on the timer\r
- * command queue. Calling xTimerStopFromISR() writes a message to the timer\r
- * command queue, so has the potential to transition the timer service/daemon\r
- * task out of the Blocked state. If calling xTimerStopFromISR() causes the\r
- * timer service/daemon task to leave the Blocked state, and the timer service/\r
- * daemon task has a priority equal to or greater than the currently executing\r
- * task (the task that was interrupted), then *pxHigherPriorityTaskWoken will\r
- * get set to pdTRUE internally within the xTimerStopFromISR() function. If\r
- * xTimerStopFromISR() sets this value to pdTRUE then a context switch should\r
- * be performed before the interrupt exits.\r
- *\r
- * @return pdFAIL will be returned if the stop command could not be sent to\r
- * the timer command queue. pdPASS will be returned if the command was\r
- * successfully sent to the timer command queue. When the command is actually\r
- * processed will depend on the priority of the timer service/daemon task\r
- * relative to other tasks in the system. The timer service/daemon task\r
- * priority is set by the configTIMER_TASK_PRIORITY configuration constant.\r
- *\r
- * Example usage:\r
- *\r
- * // This scenario assumes xTimer has already been created and started. When\r
- * // an interrupt occurs, the timer should be simply stopped.\r
- *\r
- * // The interrupt service routine that stops the timer.\r
- * void vAnExampleInterruptServiceRoutine( void )\r
- * {\r
- * portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;\r
- *\r
- * // The interrupt has occurred - simply stop the timer.\r
- * // xHigherPriorityTaskWoken was set to pdFALSE where it was defined\r
- * // (within this function). As this is an interrupt service routine, only\r
- * // FreeRTOS API functions that end in "FromISR" can be used.\r
- * if( xTimerStopFromISR( xTimer, &xHigherPriorityTaskWoken ) != pdPASS )\r
- * {\r
- * // The stop command was not executed successfully. Take appropriate\r
- * // action here.\r
- * }\r
- *\r
- * // If xHigherPriorityTaskWoken equals pdTRUE, then a context switch\r
- * // should be performed. The syntax required to perform a context switch\r
- * // from inside an ISR varies from port to port, and from compiler to\r
- * // compiler. Inspect the demos for the port you are using to find the\r
- * // actual syntax required.\r
- * if( xHigherPriorityTaskWoken != pdFALSE )\r
- * {\r
- * // Call the interrupt safe yield function here (actual function\r
- * // depends on the FreeRTOS port being used.\r
- * }\r
- * }\r
- */\r
-#define xTimerStopFromISR( xTimer, pxHigherPriorityTaskWoken ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_STOP, 0, ( pxHigherPriorityTaskWoken ), 0U )\r
-\r
-/**\r
- * portBASE_TYPE xTimerChangePeriodFromISR( xTimerHandle xTimer,\r
- * portTickType xNewPeriod,\r
- * portBASE_TYPE *pxHigherPriorityTaskWoken );\r
- *\r
- * A version of xTimerChangePeriod() that can be called from an interrupt\r
- * service routine.\r
- *\r
- * @param xTimer The handle of the timer that is having its period changed.\r
- *\r
- * @param xNewPeriod The new period for xTimer. Timer periods are specified in\r
- * tick periods, so the constant portTICK_RATE_MS can be used to convert a time\r
- * that has been specified in milliseconds. For example, if the timer must\r
- * expire after 100 ticks, then xNewPeriod should be set to 100. Alternatively,\r
- * if the timer must expire after 500ms, then xNewPeriod can be set to\r
- * ( 500 / portTICK_RATE_MS ) provided configTICK_RATE_HZ is less than\r
- * or equal to 1000.\r
- *\r
- * @param pxHigherPriorityTaskWoken The timer service/daemon task spends most\r
- * of its time in the Blocked state, waiting for messages to arrive on the timer\r
- * command queue. Calling xTimerChangePeriodFromISR() writes a message to the\r
- * timer command queue, so has the potential to transition the timer service/\r
- * daemon task out of the Blocked state. If calling xTimerChangePeriodFromISR()\r
- * causes the timer service/daemon task to leave the Blocked state, and the\r
- * timer service/daemon task has a priority equal to or greater than the\r
- * currently executing task (the task that was interrupted), then\r
- * *pxHigherPriorityTaskWoken will get set to pdTRUE internally within the\r
- * xTimerChangePeriodFromISR() function. If xTimerChangePeriodFromISR() sets\r
- * this value to pdTRUE then a context switch should be performed before the\r
- * interrupt exits.\r
- *\r
- * @return pdFAIL will be returned if the command to change the timers period\r
- * could not be sent to the timer command queue. pdPASS will be returned if the\r
- * command was successfully sent to the timer command queue. When the command\r
- * is actually processed will depend on the priority of the timer service/daemon\r
- * task relative to other tasks in the system. The timer service/daemon task\r
- * priority is set by the configTIMER_TASK_PRIORITY configuration constant.\r
- *\r
- * Example usage:\r
- *\r
- * // This scenario assumes xTimer has already been created and started. When\r
- * // an interrupt occurs, the period of xTimer should be changed to 500ms.\r
- *\r
- * // The interrupt service routine that changes the period of xTimer.\r
- * void vAnExampleInterruptServiceRoutine( void )\r
- * {\r
- * portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;\r
- *\r
- * // The interrupt has occurred - change the period of xTimer to 500ms.\r
- * // xHigherPriorityTaskWoken was set to pdFALSE where it was defined\r
- * // (within this function). As this is an interrupt service routine, only\r
- * // FreeRTOS API functions that end in "FromISR" can be used.\r
- * if( xTimerChangePeriodFromISR( xTimer, &xHigherPriorityTaskWoken ) != pdPASS )\r
- * {\r
- * // The command to change the timers period was not executed\r
- * // successfully. Take appropriate action here.\r
- * }\r
- *\r
- * // If xHigherPriorityTaskWoken equals pdTRUE, then a context switch\r
- * // should be performed. The syntax required to perform a context switch\r
- * // from inside an ISR varies from port to port, and from compiler to\r
- * // compiler. Inspect the demos for the port you are using to find the\r
- * // actual syntax required.\r
- * if( xHigherPriorityTaskWoken != pdFALSE )\r
- * {\r
- * // Call the interrupt safe yield function here (actual function\r
- * // depends on the FreeRTOS port being used.\r
- * }\r
- * }\r
- */\r
-#define xTimerChangePeriodFromISR( xTimer, xNewPeriod, pxHigherPriorityTaskWoken ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_CHANGE_PERIOD, ( xNewPeriod ), ( pxHigherPriorityTaskWoken ), 0U )\r
-\r
-/**\r
- * portBASE_TYPE xTimerResetFromISR( xTimerHandle xTimer,\r
- * portBASE_TYPE *pxHigherPriorityTaskWoken );\r
- *\r
- * A version of xTimerReset() that can be called from an interrupt service\r
- * routine.\r
- *\r
- * @param xTimer The handle of the timer that is to be started, reset, or\r
- * restarted.\r
- *\r
- * @param pxHigherPriorityTaskWoken The timer service/daemon task spends most\r
- * of its time in the Blocked state, waiting for messages to arrive on the timer\r
- * command queue. Calling xTimerResetFromISR() writes a message to the timer\r
- * command queue, so has the potential to transition the timer service/daemon\r
- * task out of the Blocked state. If calling xTimerResetFromISR() causes the\r
- * timer service/daemon task to leave the Blocked state, and the timer service/\r
- * daemon task has a priority equal to or greater than the currently executing\r
- * task (the task that was interrupted), then *pxHigherPriorityTaskWoken will\r
- * get set to pdTRUE internally within the xTimerResetFromISR() function. If\r
- * xTimerResetFromISR() sets this value to pdTRUE then a context switch should\r
- * be performed before the interrupt exits.\r
- *\r
- * @return pdFAIL will be returned if the reset command could not be sent to\r
- * the timer command queue. pdPASS will be returned if the command was\r
- * successfully sent to the timer command queue. When the command is actually\r
- * processed will depend on the priority of the timer service/daemon task\r
- * relative to other tasks in the system, although the timers expiry time is\r
- * relative to when xTimerResetFromISR() is actually called. The timer service/daemon\r
- * task priority is set by the configTIMER_TASK_PRIORITY configuration constant.\r
- *\r
- * Example usage:\r
- *\r
- * // This scenario assumes xBacklightTimer has already been created. When a\r
- * // key is pressed, an LCD back-light is switched on. If 5 seconds pass\r
- * // without a key being pressed, then the LCD back-light is switched off. In\r
- * // this case, the timer is a one-shot timer, and unlike the example given for\r
- * // the xTimerReset() function, the key press event handler is an interrupt\r
- * // service routine.\r
- *\r
- * // The callback function assigned to the one-shot timer. In this case the\r
- * // parameter is not used.\r
- * void vBacklightTimerCallback( xTimerHandle pxTimer )\r
- * {\r
- * // The timer expired, therefore 5 seconds must have passed since a key\r
- * // was pressed. Switch off the LCD back-light.\r
- * vSetBacklightState( BACKLIGHT_OFF );\r
- * }\r
- *\r
- * // The key press interrupt service routine.\r
- * void vKeyPressEventInterruptHandler( void )\r
- * {\r
- * portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;\r
- *\r
- * // Ensure the LCD back-light is on, then reset the timer that is\r
- * // responsible for turning the back-light off after 5 seconds of\r
- * // key inactivity. This is an interrupt service routine so can only\r
- * // call FreeRTOS API functions that end in "FromISR".\r
- * vSetBacklightState( BACKLIGHT_ON );\r
- *\r
- * // xTimerStartFromISR() or xTimerResetFromISR() could be called here\r
- * // as both cause the timer to re-calculate its expiry time.\r
- * // xHigherPriorityTaskWoken was initialised to pdFALSE when it was\r
- * // declared (in this function).\r
- * if( xTimerResetFromISR( xBacklightTimer, &xHigherPriorityTaskWoken ) != pdPASS )\r
- * {\r
- * // The reset command was not executed successfully. Take appropriate\r
- * // action here.\r
- * }\r
- *\r
- * // Perform the rest of the key processing here.\r
- *\r
- * // If xHigherPriorityTaskWoken equals pdTRUE, then a context switch\r
- * // should be performed. The syntax required to perform a context switch\r
- * // from inside an ISR varies from port to port, and from compiler to\r
- * // compiler. Inspect the demos for the port you are using to find the\r
- * // actual syntax required.\r
- * if( xHigherPriorityTaskWoken != pdFALSE )\r
- * {\r
- * // Call the interrupt safe yield function here (actual function\r
- * // depends on the FreeRTOS port being used.\r
- * }\r
- * }\r
- */\r
-#define xTimerResetFromISR( xTimer, pxHigherPriorityTaskWoken ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_START, ( xTaskGetTickCountFromISR() ), ( pxHigherPriorityTaskWoken ), 0U )\r
-\r
-/*\r
- * Functions beyond this part are not part of the public API and are intended\r
- * for use by the kernel only.\r
- */\r
-portBASE_TYPE xTimerCreateTimerTask( void ) PRIVILEGED_FUNCTION;\r
-portBASE_TYPE xTimerGenericCommand( xTimerHandle xTimer, portBASE_TYPE xCommandID, portTickType xOptionalValue, signed portBASE_TYPE *pxHigherPriorityTaskWoken, portTickType xBlockTime ) PRIVILEGED_FUNCTION;\r
-\r
-#ifdef __cplusplus\r
-}\r
-#endif\r
-#endif /* TIMERS_H */\r
-\r
-\r
-\r
projects / freertos / commitdiff