--- /dev/null
+/*\r
+ FreeRTOS.org V5.0.4 - Copyright (C) 2003-2008 Richard Barry.\r
+\r
+ This file is part of the FreeRTOS.org distribution.\r
+\r
+ FreeRTOS.org is free software; you can redistribute it and/or modify\r
+ it under the terms of the GNU General Public License as published by\r
+ the Free Software Foundation; either version 2 of the License, or\r
+ (at your option) any later version.\r
+\r
+ FreeRTOS.org is distributed in the hope that it will be useful,\r
+ but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
+ GNU General Public License for more details.\r
+\r
+ You should have received a copy of the GNU General Public License\r
+ along with FreeRTOS.org; if not, write to the Free Software\r
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\r
+\r
+ A special exception to the GPL can be applied should you wish to distribute\r
+ a combined work that includes FreeRTOS.org, without being obliged to provide\r
+ the source code for any proprietary components. See the licensing section\r
+ of http://www.FreeRTOS.org for full details of how and when the exception\r
+ can be applied.\r
+\r
+ ***************************************************************************\r
+ ***************************************************************************\r
+ * *\r
+ * SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *\r
+ * and even write all or part of your application on your behalf. *\r
+ * See http://www.OpenRTOS.com for details of the services we provide to *\r
+ * expedite your project. *\r
+ * *\r
+ ***************************************************************************\r
+ ***************************************************************************\r
+\r
+ Please ensure to read the configuration and relevant port sections of the\r
+ online documentation.\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
+/* Kernel includes. */\r
+#include "FreeRTOS.h"\r
+#include "task.h"\r
+\r
+\r
+#define portINITIAL_FORMAT_VECTOR ( ( portSTACK_TYPE ) 0x4000 )\r
+\r
+/* Supervisor mode set. */\r
+#define portINITIAL_STATUS_REGISTER ( ( portSTACK_TYPE ) 0x2000)\r
+\r
+/* Used to keep track of the number of nested calls to taskENTER_CRITICAL(). This\r
+will be set to 0 prior to the first task being started. */\r
+static unsigned portLONG ulCriticalNesting = 0x9999UL;\r
+\r
+\r
+#define portSAVE_CONTEXT() \\r
+ lea.l (-60, %sp), %sp; \\r
+ movem.l %d0-%fp, (%sp); \\r
+ move.l pxCurrentTCB, %a0; \\r
+ move.l %sp, (%a0);\r
+\r
+#define portRESTORE_CONTEXT() \\r
+ move.l pxCurrentTCB, %a0; \\r
+ move.l (%a0), %sp; \\r
+ movem.l (%sp), %d0-%fp; \\r
+ lea.l %sp@(60), %sp; \\r
+ rte\r
+\r
+\r
+\r
+/*-----------------------------------------------------------*/\r
+\r
+portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE * pxTopOfStack, pdTASK_CODE pxCode, void *pvParameters )\r
+{\r
+ *pxTopOfStack = ( portSTACK_TYPE ) pvParameters;\r
+ pxTopOfStack--;\r
+\r
+ *pxTopOfStack = (portSTACK_TYPE) 0xDEADBEEF;\r
+ pxTopOfStack--;\r
+\r
+ /* Exception stack frame starts with the return address. */\r
+ *pxTopOfStack = ( portSTACK_TYPE ) pxCode;\r
+ pxTopOfStack--;\r
+\r
+ *pxTopOfStack = ( portINITIAL_FORMAT_VECTOR << 16UL ) | ( portINITIAL_STATUS_REGISTER );\r
+ pxTopOfStack--;\r
+\r
+ *pxTopOfStack = ( portSTACK_TYPE ) 0x0; /*FP*/\r
+ pxTopOfStack -= 14; /* A5 to D0. */\r
+\r
+ return pxTopOfStack;\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+portBASE_TYPE xPortStartScheduler( void )\r
+{\r
+extern void vPortStartFirstTask( void );\r
+\r
+ ulCriticalNesting = 0UL;\r
+\r
+ /* Configure the interrupts used by this port. */\r
+ vApplicationSetupInterrupts();\r
+\r
+ /* Start the first task executing. */\r
+ vPortStartFirstTask();\r
+\r
+ return pdFALSE;\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+void vPortEndScheduler( void )\r
+{\r
+ /* Not implemented as there is nothing to return to. */\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+void vPortEnterCritical( void )\r
+{\r
+ if( ulCriticalNesting == 0UL )\r
+ {\r
+ /* Guard against context switches being pended simultaneously with a\r
+ critical section being entered. */\r
+ do\r
+ {\r
+ portDISABLE_INTERRUPTS();\r
+ if( MCF_INTC0_INTFRCH == 0UL )\r
+ {\r
+ break;\r
+ }\r
+\r
+ portENABLE_INTERRUPTS();\r
+\r
+ } while( 1 );\r
+ }\r
+ ulCriticalNesting++;\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+void vPortExitCritical( void )\r
+{\r
+ ulCriticalNesting--;\r
+ if( ulCriticalNesting == 0 )\r
+ {\r
+ portENABLE_INTERRUPTS();\r
+ }\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+void vPortYieldHandler( void )\r
+{\r
+unsigned portLONG ulSavedInterruptMask;\r
+\r
+ ulSavedInterruptMask = portSET_INTERRUPT_MASK_FROM_ISR();\r
+ /* Note this will clear all forced interrupts - this is done for speed. */\r
+ MCF_INTC0_INTFRCL = 0;\r
+ vTaskSwitchContext();\r
+ portCLEAR_INTERRUPT_MASK_FROM_ISR( ulSavedInterruptMask );\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
--- /dev/null
+/*\r
+ FreeRTOS.org V5.0.4 - Copyright (C) 2003-2008 Richard Barry.\r
+\r
+ This file is part of the FreeRTOS.org distribution.\r
+\r
+ FreeRTOS.org is free software; you can redistribute it and/or modify\r
+ it under the terms of the GNU General Public License as published by\r
+ the Free Software Foundation; either version 2 of the License, or\r
+ (at your option) any later version.\r
+\r
+ FreeRTOS.org is distributed in the hope that it will be useful,\r
+ but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
+ GNU General Public License for more details.\r
+\r
+ You should have received a copy of the GNU General Public License\r
+ along with FreeRTOS.org; if not, write to the Free Software\r
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\r
+\r
+ A special exception to the GPL can be applied should you wish to distribute\r
+ a combined work that includes FreeRTOS.org, without being obliged to provide\r
+ the source code for any proprietary components. See the licensing section\r
+ of http://www.FreeRTOS.org for full details of how and when the exception\r
+ can be applied.\r
+\r
+ ***************************************************************************\r
+ ***************************************************************************\r
+ * *\r
+ * SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *\r
+ * and even write all or part of your application on your behalf. *\r
+ * See http://www.OpenRTOS.com for details of the services we provide to *\r
+ * expedite your project. *\r
+ * *\r
+ ***************************************************************************\r
+ ***************************************************************************\r
+\r
+ Please ensure to read the configuration and relevant port sections of the\r
+ online documentation.\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
+ * Purpose: Lowest level routines for all ColdFire processors.\r
+ *\r
+ * Notes:\r
+ * \r
+ * ulPortSetIPL() and mcf5xxx_wr_cacr() copied with permission from FreeScale\r
+ * supplied source files.\r
+ */\r
+\r
+ .global ulPortSetIPL\r
+ .global _ulPortSetIPL\r
+ .global mcf5xxx_wr_cacrx\r
+ .global _mcf5xxx_wr_cacrx\r
+ .global vPortYieldISR\r
+ .global _vPortYieldISR\r
+ .global vPortStartFirstTask\r
+ .global _vPortStartFirstTask\r
+ .extern _pxCurrentTCB\r
+ .extern _vPortYieldHandler\r
+\r
+ .text\r
+\r
+.macro portSAVE_CONTEXT\r
+\r
+ lea.l (-60, sp), sp\r
+ movem.l d0-a6, (sp)\r
+ move.l _pxCurrentTCB, a0\r
+ move.l sp, (a0)\r
+\r
+ .endm\r
+\r
+.macro portRESTORE_CONTEXT\r
+\r
+ move.l _pxCurrentTCB, a0\r
+ move.l (a0), sp\r
+ movem.l (sp), d0-a6\r
+ lea.l (60, sp), sp\r
+ rte\r
+\r
+ .endm\r
+\r
+/********************************************************************/\r
+/*\r
+ * This routines changes the IPL to the value passed into the routine.\r
+ * It also returns the old IPL value back.\r
+ * Calling convention from C:\r
+ * old_ipl = asm_set_ipl(new_ipl);\r
+ * For the Diab Data C compiler, it passes return value thru D0.\r
+ * Note that only the least significant three bits of the passed\r
+ * value are used.\r
+ */\r
+\r
+ulPortSetIPL:\r
+_ulPortSetIPL:\r
+ link A6,#-8\r
+ movem.l D6-D7,(SP)\r
+\r
+ move.w SR,D7 /* current sr */\r
+\r
+ move.l D7,D0 /* prepare return value */\r
+ andi.l #0x0700,D0 /* mask out IPL */\r
+ lsr.l #8,D0 /* IPL */\r
+\r
+ move.l 8(A6),D6 /* get argument */\r
+ andi.l #0x07,D6 /* least significant three bits */\r
+ lsl.l #8,D6 /* move over to make mask */\r
+\r
+ andi.l #0x0000F8FF,D7 /* zero out current IPL */\r
+ or.l D6,D7 /* place new IPL in sr */\r
+ move.w D7,SR\r
+\r
+ movem.l (SP),D6-D7\r
+ lea 8(SP),SP\r
+ unlk A6\r
+ rts\r
+/********************************************************************/\r
+\r
+mcf5xxx_wr_cacrx:\r
+_mcf5xxx_wr_cacrx:\r
+ move.l 4(sp),d0\r
+ .long 0x4e7b0002 /* movec d0,cacr */\r
+ nop\r
+ rts\r
+\r
+/********************************************************************/\r
+\r
+/* Yield interrupt. */\r
+_vPortYieldISR:\r
+vPortYieldISR:\r
+ portSAVE_CONTEXT\r
+ jsr _vPortYieldHandler\r
+ portRESTORE_CONTEXT\r
+\r
+/********************************************************************/\r
+\r
+\r
+vPortStartFirstTask:\r
+_vPortStartFirstTask:\r
+ portRESTORE_CONTEXT\r
+\r
+ .end\r
+\r
+\r
--- /dev/null
+/*\r
+ FreeRTOS.org V5.0.4 - Copyright (C) 2003-2008 Richard Barry.\r
+\r
+ This file is part of the FreeRTOS.org distribution.\r
+\r
+ FreeRTOS.org is free software; you can redistribute it and/or modify\r
+ it under the terms of the GNU General Public License as published by\r
+ the Free Software Foundation; either version 2 of the License, or\r
+ (at your option) any later version.\r
+\r
+ FreeRTOS.org is distributed in the hope that it will be useful,\r
+ but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
+ GNU General Public License for more details.\r
+\r
+ You should have received a copy of the GNU General Public License\r
+ along with FreeRTOS.org; if not, write to the Free Software\r
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\r
+\r
+ A special exception to the GPL can be applied should you wish to distribute\r
+ a combined work that includes FreeRTOS.org, without being obliged to provide\r
+ the source code for any proprietary components. See the licensing section\r
+ of http://www.FreeRTOS.org for full details of how and when the exception\r
+ can be applied.\r
+\r
+ ***************************************************************************\r
+ ***************************************************************************\r
+ * *\r
+ * SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *\r
+ * and even write all or part of your application on your behalf. *\r
+ * See http://www.OpenRTOS.com for details of the services we provide to *\r
+ * expedite your project. *\r
+ * *\r
+ ***************************************************************************\r
+ ***************************************************************************\r
+\r
+ Please ensure to read the configuration and relevant port sections of the\r
+ online documentation.\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 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. */\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 ) 0xffffffff\r
+#endif\r
+/*-----------------------------------------------------------*/\r
+\r
+/* Hardware specifics. */\r
+#define portBYTE_ALIGNMENT 4\r
+#define portSTACK_GROWTH -1\r
+#define portTICK_RATE_MS ( ( portTickType ) 1000 / configTICK_RATE_HZ )\r
+/*-----------------------------------------------------------*/\r
+unsigned portLONG ulPortSetIPL( unsigned portLONG );\r
+#define portDISABLE_INTERRUPTS() ulPortSetIPL( configMAX_SYSCALL_INTERRUPT_PRIORITY )\r
+#define portENABLE_INTERRUPTS() ulPortSetIPL( 0 )\r
+\r
+\r
+extern void vPortEnterCritical( void );\r
+extern void vPortExitCritical( void );\r
+#define portENTER_CRITICAL() vPortEnterCritical()\r
+#define portEXIT_CRITICAL() vPortExitCritical()\r
+\r
+extern unsigned portBASE_TYPE uxPortSetInterruptMaskFromISR( void );\r
+extern void vPortClearInterruptMaskFromISR( unsigned portBASE_TYPE );\r
+#define portSET_INTERRUPT_MASK_FROM_ISR() ulPortSetIPL( configMAX_SYSCALL_INTERRUPT_PRIORITY )\r
+#define portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedStatusRegister ) ulPortSetIPL( uxSavedStatusRegister )\r
+\r
+/*-----------------------------------------------------------*/\r
+\r
+/* Task utilities. */\r
+\r
+#define portNOP() asm volatile ( "nop" )\r
+\r
+/* Note this will overwrite all other bits in the force register, it is done this way for speed. */\r
+#define portYIELD() MCF_INTC0_INTFRCL = ( 1UL << configYIELD_INTERRUPT_VECTOR ); portNOP(); portNOP() /* -32 as we are using the high word of the 64bit mask. */\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 ) __attribute__((noreturn))\r
+#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
+/*-----------------------------------------------------------*/\r
+\r
+#define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired != pdFALSE ) \\r
+ { \\r
+ portYIELD(); \\r
+ }\r
+\r
+\r
+#ifdef __cplusplus\r
+}\r
+#endif\r
+\r
+#endif /* PORTMACRO_H */\r
+\r
projects / freertos / commitdiff