--- /dev/null
+/*\r
+ FreeRTOS V6.0.5 - Copyright (C) 2010 Real Time Engineers Ltd.\r
+\r
+ ***************************************************************************\r
+ * *\r
+ * If you are: *\r
+ * *\r
+ * + New to FreeRTOS, *\r
+ * + Wanting to learn FreeRTOS or multitasking in general quickly *\r
+ * + Looking for basic training, *\r
+ * + Wanting to improve your FreeRTOS skills and productivity *\r
+ * *\r
+ * then take a look at the FreeRTOS eBook *\r
+ * *\r
+ * "Using the FreeRTOS Real Time Kernel - a Practical Guide" *\r
+ * http://www.FreeRTOS.org/Documentation *\r
+ * *\r
+ * A pdf reference manual is also available. Both are usually delivered *\r
+ * to your inbox within 20 minutes to two hours when purchased between 8am *\r
+ * and 8pm GMT (although please allow up to 24 hours in case of *\r
+ * exceptional circumstances). Thank you for your support! *\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 exception to the GPL is included to allow you to distribute\r
+ a combined work that includes FreeRTOS without being obliged to provide the\r
+ source code for proprietary components outside of the FreeRTOS kernel.\r
+ FreeRTOS is distributed in the hope that it will be useful, but WITHOUT\r
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or\r
+ 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
+ * Implementation of functions defined in portable.h for the SH2A port.\r
+ *----------------------------------------------------------*/\r
+\r
+/* Scheduler includes. */\r
+#include "FreeRTOS.h"\r
+#include "task.h"\r
+\r
+/* Library includes. */\r
+#include "string.h"\r
+\r
+/*-----------------------------------------------------------*/\r
+\r
+/* Dimensions the array into which the floating point context is saved. \r
+Allocate enough space for FPR0 to FPR15, FPUL and FPSCR, each of which is 4\r
+bytes big. If this number is changed then the 72 in portasm.src also needs\r
+changing. */\r
+#define portFLOP_REGISTERS_TO_STORE ( 18 )\r
+#define portFLOP_STORAGE_SIZE ( portFLOP_REGISTERS_TO_STORE * 4 )\r
+\r
+/*-----------------------------------------------------------*/\r
+\r
+/*\r
+ * \r
+ */\r
+void vPortYield( void );\r
+\r
+/*\r
+ * Function to start the first task executing.\r
+ */\r
+void vPortStartFirstTask( void );\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
+ return pxTopOfStack;\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+portBASE_TYPE xPortStartScheduler( void )\r
+{\r
+extern void vApplicationSetupTimerInterrupt( void );\r
+\r
+ /* Call an application function to set up the timer that will generate the\r
+ tick interrupt. This way the application can decide which peripheral to \r
+ use. A demo application is provided to show a suitable example. */\r
+ vApplicationSetupTimerInterrupt();\r
+\r
+ /* Start the first task. This will only restore the standard registers and\r
+ not the flop registers. This does not really matter though because the only\r
+ flop register that is initialised to a particular value is fpscr, and it is\r
+ only initialised to the current value, which will still be the current value\r
+ when the first task starts executing. */\r
+ //trapa( portSTART_SCHEDULER_TRAP_NO );\r
+\r
+ /* Should not get here. */\r
+ return pdFAIL;\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+void vPortEndScheduler( void )\r
+{\r
+ /* Not implemented as there is nothing to return to. */\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+void vPortYield( void )\r
+{\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+portBASE_TYPE xPortUsesFloatingPoint( xTaskHandle xTask )\r
+{\r
+unsigned long *pulFlopBuffer;\r
+portBASE_TYPE xReturn;\r
+extern void * volatile pxCurrentTCB;\r
+\r
+ /* This function tells the kernel that the task referenced by xTask is\r
+ going to use the floating point registers and therefore requires the\r
+ floating point registers saved as part of its context. */\r
+\r
+ /* Passing NULL as xTask is used to indicate that the calling task is the\r
+ subject task - so pxCurrentTCB is the task handle. */\r
+ if( xTask == NULL )\r
+ {\r
+ xTask = ( xTaskHandle ) pxCurrentTCB;\r
+ }\r
+\r
+ /* Allocate a buffer large enough to hold all the flop registers. */\r
+ pulFlopBuffer = ( unsigned long * ) pvPortMalloc( portFLOP_STORAGE_SIZE );\r
+ \r
+ if( pulFlopBuffer != NULL )\r
+ {\r
+ /* Start with the registers in a benign state. */\r
+ memset( ( void * ) pulFlopBuffer, 0x00, portFLOP_STORAGE_SIZE );\r
+ \r
+ /* The first thing to get saved in the buffer is the FPSCR value -\r
+ initialise this to the current FPSCR value. */\r
+//_RB_ *pulFlopBuffer = get_fpscr();\r
+ \r
+ /* Use the task tag to point to the flop buffer. Pass pointer to just \r
+ above the buffer because the flop save routine uses a pre-decrement. */\r
+ vTaskSetApplicationTaskTag( xTask, ( void * ) ( pulFlopBuffer + portFLOP_REGISTERS_TO_STORE ) ); \r
+ xReturn = pdPASS;\r
+ }\r
+ else\r
+ {\r
+ xReturn = pdFAIL;\r
+ }\r
+ \r
+ return xReturn;\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+void vPortSaveFlopRegisters( void *pvBuffer )\r
+{\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+void vPortRestoreFlopRegisters( void *pvBuffer )\r
+{\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
--- /dev/null
+/*\r
+ FreeRTOS V6.0.5 - Copyright (C) 2010 Real Time Engineers Ltd.\r
+\r
+ ***************************************************************************\r
+ * *\r
+ * If you are: *\r
+ * *\r
+ * + New to FreeRTOS, *\r
+ * + Wanting to learn FreeRTOS or multitasking in general quickly *\r
+ * + Looking for basic training, *\r
+ * + Wanting to improve your FreeRTOS skills and productivity *\r
+ * *\r
+ * then take a look at the FreeRTOS eBook *\r
+ * *\r
+ * "Using the FreeRTOS Real Time Kernel - a Practical Guide" *\r
+ * http://www.FreeRTOS.org/Documentation *\r
+ * *\r
+ * A pdf reference manual is also available. Both are usually delivered *\r
+ * to your inbox within 20 minutes to two hours when purchased between 8am *\r
+ * and 8pm GMT (although please allow up to 24 hours in case of *\r
+ * exceptional circumstances). Thank you for your support! *\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 exception to the GPL is included to allow you to distribute\r
+ a combined work that includes FreeRTOS without being obliged to provide the\r
+ source code for proprietary components outside of the FreeRTOS kernel.\r
+ FreeRTOS is distributed in the hope that it will be useful, but WITHOUT\r
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or\r
+ 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 PORTMACRO_H\r
+#define PORTMACRO_H\r
+\r
+#ifdef __cplusplus\r
+extern "C" {\r
+#endif\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 - these are a bit legacy and not really used now, other than\r
+portSTACK_TYPE and portBASE_TYPE. */\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 portLONG\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 ) 0xffffffff\r
+#endif\r
+/*-----------------------------------------------------------*/\r
+\r
+/* Hardware specifics. */\r
+#define portBYTE_ALIGNMENT 8\r
+#define portSTACK_GROWTH -1\r
+#define portTICK_RATE_MS ( ( portTickType ) 1000 / configTICK_RATE_HZ ) \r
+#define portNOP() nop()\r
+#define portSTART_SCHEDULER_TRAP_NO ( 32 )\r
+#define portKERNEL_INTERRUPT_PRIORITY ( 1 )\r
+\r
+void vPortYield( void );\r
+#define portYIELD() vPortYield()\r
+\r
+extern void vTaskSwitchContext( void );\r
+#define portYIELD_FROM_ISR( x ) if( x != pdFALSE ) vTaskSwitchContext()\r
+\r
+/* \r
+ * This function tells the kernel that the task referenced by xTask is going to \r
+ * use the floating point registers and therefore requires the floating point \r
+ * registers saved as part of its context. \r
+ */\r
+portBASE_TYPE xPortUsesFloatingPoint( void* xTask );\r
+\r
+/*\r
+ * The flop save and restore functions are defined in portasm.src and called by\r
+ * the trace "task switched in" and "trace task switched out" macros. \r
+ */\r
+void vPortSaveFlopRegisters( void *pulBuffer );\r
+void vPortRestoreFlopRegisters( void *pulBuffer );\r
+\r
+/*\r
+ * pxTaskTag is used to point to the buffer into which the floating point \r
+ * context should be saved. If pxTaskTag is NULL then the task does not use\r
+ * a floating point context.\r
+ */\r
+#define traceTASK_SWITCHED_OUT() if( pxCurrentTCB->pxTaskTag != NULL ) vPortSaveFlopRegisters( pxCurrentTCB->pxTaskTag )\r
+#define traceTASK_SWITCHED_IN() if( pxCurrentTCB->pxTaskTag != NULL ) vPortRestoreFlopRegisters( pxCurrentTCB->pxTaskTag )\r
+\r
+/*\r
+ * These macros should be called directly, but through the taskENTER_CRITICAL()\r
+ * and taskEXIT_CRITICAL() macros.\r
+ */\r
+#define portENABLE_INTERRUPTS() \r
+#define portDISABLE_INTERRUPTS() \r
+\r
+/* Critical nesting counts are stored in the TCB. */\r
+#define portCRITICAL_NESTING_IN_TCB ( 1 )\r
+\r
+/* The critical nesting functions defined within tasks.c. */\r
+extern void vTaskEnterCritical( void );\r
+extern void vTaskExitCritical( void );\r
+#define portENTER_CRITICAL() vTaskEnterCritical();\r
+#define portEXIT_CRITICAL() vTaskExitCritical();\r
+\r
+/*-----------------------------------------------------------*/\r
+\r
+/* Task function macros as described on the FreeRTOS.org WEB site. */\r
+#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
+#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
+\r
+#ifdef __cplusplus\r
+}\r
+#endif\r
+\r
+#endif /* PORTMACRO_H */\r
+\r
projects / freertos / commitdiff