2 FreeRTOS V7.5.0 - Copyright (C) 2013 Real Time Engineers Ltd.
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4 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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6 ***************************************************************************
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8 * FreeRTOS provides completely free yet professionally developed, *
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9 * robust, strictly quality controlled, supported, and cross *
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10 * platform software that has become a de facto standard. *
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12 * Help yourself get started quickly and support the FreeRTOS *
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13 * project by purchasing a FreeRTOS tutorial book, reference *
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14 * manual, or both from: http://www.FreeRTOS.org/Documentation *
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18 ***************************************************************************
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20 This file is part of the FreeRTOS distribution.
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22 FreeRTOS is free software; you can redistribute it and/or modify it under
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23 the terms of the GNU General Public License (version 2) as published by the
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24 Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
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26 >>! NOTE: The modification to the GPL is included to allow you to distribute
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27 >>! a combined work that includes FreeRTOS without being obliged to provide
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28 >>! the source code for proprietary components outside of the FreeRTOS
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31 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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32 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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33 FOR A PARTICULAR PURPOSE. Full license text is available from the following
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34 link: http://www.freertos.org/a00114.html
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38 ***************************************************************************
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40 * Having a problem? Start by reading the FAQ "My application does *
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41 * not run, what could be wrong?" *
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43 * http://www.FreeRTOS.org/FAQHelp.html *
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45 ***************************************************************************
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47 http://www.FreeRTOS.org - Documentation, books, training, latest versions,
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48 license and Real Time Engineers Ltd. contact details.
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50 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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51 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
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52 compatible FAT file system, and our tiny thread aware UDP/IP stack.
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54 http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
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55 Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
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56 licenses offer ticketed support, indemnification and middleware.
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58 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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59 engineered and independently SIL3 certified version for use in safety and
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60 mission critical applications that require provable dependability.
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65 /*-----------------------------------------------------------
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66 * Implementation of functions defined in portable.h for the ARM CM3 port.
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67 *----------------------------------------------------------*/
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69 /* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE prevents task.h from redefining
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70 all the API functions to use the MPU wrappers. That should only be done when
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71 task.h is included from an application file. */
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72 #define MPU_WRAPPERS_INCLUDED_FROM_API_FILE
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74 /* Scheduler includes. */
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75 #include "FreeRTOS.h"
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79 #undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE
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81 /* Constants required to access and manipulate the NVIC. */
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82 #define portNVIC_SYSTICK_CTRL ( ( volatile unsigned long * ) 0xe000e010 )
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83 #define portNVIC_SYSTICK_LOAD ( ( volatile unsigned long * ) 0xe000e014 )
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84 #define portNVIC_SYSPRI2 ( ( volatile unsigned long * ) 0xe000ed20 )
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85 #define portNVIC_SYSPRI1 ( ( volatile unsigned long * ) 0xe000ed1c )
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86 #define portNVIC_SYS_CTRL_STATE ( ( volatile unsigned long * ) 0xe000ed24 )
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87 #define portNVIC_MEM_FAULT_ENABLE ( 1UL << 16UL )
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89 /* Constants required to access and manipulate the MPU. */
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90 #define portMPU_TYPE ( ( volatile unsigned long * ) 0xe000ed90 )
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91 #define portMPU_REGION_BASE_ADDRESS ( ( volatile unsigned long * ) 0xe000ed9C )
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92 #define portMPU_REGION_ATTRIBUTE ( ( volatile unsigned long * ) 0xe000edA0 )
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93 #define portMPU_CTRL ( ( volatile unsigned long * ) 0xe000ed94 )
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94 #define portEXPECTED_MPU_TYPE_VALUE ( 8UL << 8UL ) /* 8 regions, unified. */
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95 #define portMPU_ENABLE ( 0x01UL )
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96 #define portMPU_BACKGROUND_ENABLE ( 1UL << 2UL )
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97 #define portPRIVILEGED_EXECUTION_START_ADDRESS ( 0UL )
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98 #define portMPU_REGION_VALID ( 0x10UL )
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99 #define portMPU_REGION_ENABLE ( 0x01UL )
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100 #define portPERIPHERALS_START_ADDRESS 0x40000000UL
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101 #define portPERIPHERALS_END_ADDRESS 0x5FFFFFFFUL
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103 /* Constants required to access and manipulate the SysTick. */
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104 #define portNVIC_SYSTICK_CLK ( 0x00000004UL )
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105 #define portNVIC_SYSTICK_INT ( 0x00000002UL )
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106 #define portNVIC_SYSTICK_ENABLE ( 0x00000001UL )
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107 #define portNVIC_PENDSV_PRI ( ( ( unsigned long ) configKERNEL_INTERRUPT_PRIORITY ) << 16UL )
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108 #define portNVIC_SYSTICK_PRI ( ( ( unsigned long ) configKERNEL_INTERRUPT_PRIORITY ) << 24UL )
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109 #define portNVIC_SVC_PRI ( ( ( unsigned long ) configKERNEL_INTERRUPT_PRIORITY ) << 24UL )
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111 /* Constants required to set up the initial stack. */
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112 #define portINITIAL_XPSR ( 0x01000000 )
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113 #define portINITIAL_CONTROL_IF_UNPRIVILEGED ( 0x03 )
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114 #define portINITIAL_CONTROL_IF_PRIVILEGED ( 0x02 )
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116 /* Offsets in the stack to the parameters when inside the SVC handler. */
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117 #define portOFFSET_TO_PC ( 6 )
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119 /* Set the privilege level to user mode if xRunningPrivileged is false. */
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120 #define portRESET_PRIVILEGE( xRunningPrivileged ) if( xRunningPrivileged != pdTRUE ) __asm volatile ( " mrs r0, control \n orr r0, #1 \n msr control, r0" :::"r0" )
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122 /* Each task maintains its own interrupt status in the critical nesting
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123 variable. Note this is not saved as part of the task context as context
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124 switches can only occur when uxCriticalNesting is zero. */
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125 static unsigned portBASE_TYPE uxCriticalNesting = 0xaaaaaaaa;
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128 * Setup the timer to generate the tick interrupts.
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130 static void prvSetupTimerInterrupt( void ) PRIVILEGED_FUNCTION;
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133 * Configure a number of standard MPU regions that are used by all tasks.
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135 static void prvSetupMPU( void ) PRIVILEGED_FUNCTION;
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138 * Return the smallest MPU region size that a given number of bytes will fit
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139 * into. The region size is returned as the value that should be programmed
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140 * into the region attribute register for that region.
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142 static unsigned long prvGetMPURegionSizeSetting( unsigned long ulActualSizeInBytes ) PRIVILEGED_FUNCTION;
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145 * Checks to see if being called from the context of an unprivileged task, and
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146 * if so raises the privilege level and returns false - otherwise does nothing
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147 * other than return true.
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149 static portBASE_TYPE prvRaisePrivilege( void ) __attribute__(( naked ));
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152 * Standard FreeRTOS exception handlers.
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154 void xPortPendSVHandler( void ) __attribute__ (( naked )) PRIVILEGED_FUNCTION;
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155 void xPortSysTickHandler( void ) __attribute__ ((optimize("3"))) PRIVILEGED_FUNCTION;
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156 void vPortSVCHandler( void ) __attribute__ (( naked )) PRIVILEGED_FUNCTION;
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159 * Starts the scheduler by restoring the context of the first task to run.
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161 static void prvRestoreContextOfFirstTask( void ) __attribute__(( naked )) PRIVILEGED_FUNCTION;
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164 * C portion of the SVC handler. The SVC handler is split between an asm entry
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165 * and a C wrapper for simplicity of coding and maintenance.
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167 static void prvSVCHandler( unsigned long *pulRegisters ) __attribute__(( noinline )) PRIVILEGED_FUNCTION;
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170 * Prototypes for all the MPU wrappers.
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172 signed portBASE_TYPE MPU_xTaskGenericCreate( pdTASK_CODE pvTaskCode, const signed char * const pcName, unsigned short usStackDepth, void *pvParameters, unsigned portBASE_TYPE uxPriority, xTaskHandle *pxCreatedTask, portSTACK_TYPE *puxStackBuffer, const xMemoryRegion * const xRegions );
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173 void MPU_vTaskAllocateMPURegions( xTaskHandle xTask, const xMemoryRegion * const xRegions );
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174 void MPU_vTaskDelete( xTaskHandle pxTaskToDelete );
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175 void MPU_vTaskDelayUntil( portTickType * const pxPreviousWakeTime, portTickType xTimeIncrement );
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176 void MPU_vTaskDelay( portTickType xTicksToDelay );
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177 unsigned portBASE_TYPE MPU_uxTaskPriorityGet( xTaskHandle pxTask );
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178 void MPU_vTaskPrioritySet( xTaskHandle pxTask, unsigned portBASE_TYPE uxNewPriority );
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179 eTaskState MPU_eTaskGetState( xTaskHandle pxTask );
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180 void MPU_vTaskSuspend( xTaskHandle pxTaskToSuspend );
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181 signed portBASE_TYPE MPU_xTaskIsTaskSuspended( xTaskHandle xTask );
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182 void MPU_vTaskResume( xTaskHandle pxTaskToResume );
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183 void MPU_vTaskSuspendAll( void );
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184 signed portBASE_TYPE MPU_xTaskResumeAll( void );
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185 portTickType MPU_xTaskGetTickCount( void );
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186 unsigned portBASE_TYPE MPU_uxTaskGetNumberOfTasks( void );
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187 void MPU_vTaskList( signed char *pcWriteBuffer );
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188 void MPU_vTaskGetRunTimeStats( signed char *pcWriteBuffer );
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189 void MPU_vTaskSetApplicationTaskTag( xTaskHandle xTask, pdTASK_HOOK_CODE pxTagValue );
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190 pdTASK_HOOK_CODE MPU_xTaskGetApplicationTaskTag( xTaskHandle xTask );
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191 portBASE_TYPE MPU_xTaskCallApplicationTaskHook( xTaskHandle xTask, void *pvParameter );
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192 unsigned portBASE_TYPE MPU_uxTaskGetStackHighWaterMark( xTaskHandle xTask );
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193 xTaskHandle MPU_xTaskGetCurrentTaskHandle( void );
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194 portBASE_TYPE MPU_xTaskGetSchedulerState( void );
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195 xTaskHandle MPU_xTaskGetIdleTaskHandle( void );
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196 unsigned portBASE_TYPE MPU_xTaskGetSystemState( xTaskStatusType *pxTaskStatusArray, unsigned portBASE_TYPE uxArraySize, unsigned long *pulTotalRunTime );
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197 xQueueHandle MPU_xQueueGenericCreate( unsigned portBASE_TYPE uxQueueLength, unsigned portBASE_TYPE uxItemSize, unsigned char ucQueueType );
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198 signed portBASE_TYPE MPU_xQueueGenericSend( xQueueHandle xQueue, const void * const pvItemToQueue, portTickType xTicksToWait, portBASE_TYPE xCopyPosition );
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199 portBASE_TYPE MPU_xQueueGenericReset( xQueueHandle pxQueue, portBASE_TYPE xNewQueue );
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200 unsigned portBASE_TYPE MPU_uxQueueMessagesWaiting( const xQueueHandle pxQueue );
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201 signed portBASE_TYPE MPU_xQueueGenericReceive( xQueueHandle pxQueue, void * const pvBuffer, portTickType xTicksToWait, portBASE_TYPE xJustPeeking );
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202 xQueueHandle MPU_xQueueCreateMutex( void );
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203 xQueueHandle MPU_xQueueCreateCountingSemaphore( unsigned portBASE_TYPE uxCountValue, unsigned portBASE_TYPE uxInitialCount );
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204 portBASE_TYPE MPU_xQueueTakeMutexRecursive( xQueueHandle xMutex, portTickType xBlockTime );
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205 portBASE_TYPE MPU_xQueueGiveMutexRecursive( xQueueHandle xMutex );
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206 signed portBASE_TYPE MPU_xQueueAltGenericSend( xQueueHandle pxQueue, const void * const pvItemToQueue, portTickType xTicksToWait, portBASE_TYPE xCopyPosition );
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207 signed portBASE_TYPE MPU_xQueueAltGenericReceive( xQueueHandle pxQueue, void * const pvBuffer, portTickType xTicksToWait, portBASE_TYPE xJustPeeking );
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208 void MPU_vQueueAddToRegistry( xQueueHandle xQueue, signed char *pcName );
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209 void MPU_vQueueDelete( xQueueHandle xQueue );
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210 void *MPU_pvPortMalloc( size_t xSize );
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211 void MPU_vPortFree( void *pv );
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212 void MPU_vPortInitialiseBlocks( void );
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213 size_t MPU_xPortGetFreeHeapSize( void );
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214 xQueueSetHandle MPU_xQueueCreateSet( unsigned portBASE_TYPE uxEventQueueLength );
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215 xQueueSetMemberHandle MPU_xQueueSelectFromSet( xQueueSetHandle xQueueSet, portTickType xBlockTimeTicks );
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216 portBASE_TYPE MPU_xQueueAddToSet( xQueueSetMemberHandle xQueueOrSemaphore, xQueueSetHandle xQueueSet );
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217 portBASE_TYPE MPU_xQueueRemoveFromSet( xQueueSetMemberHandle xQueueOrSemaphore, xQueueSetHandle xQueueSet );
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218 signed portBASE_TYPE MPU_xQueuePeekFromISR( xQueueHandle xQueue, void * const pvBuffer );
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220 /*-----------------------------------------------------------*/
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223 * See header file for description.
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225 portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE pxCode, void *pvParameters, portBASE_TYPE xRunPrivileged )
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227 /* Simulate the stack frame as it would be created by a context switch
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229 pxTopOfStack--; /* Offset added to account for the way the MCU uses the stack on entry/exit of interrupts. */
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230 *pxTopOfStack = portINITIAL_XPSR; /* xPSR */
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232 *pxTopOfStack = ( portSTACK_TYPE ) pxCode; /* PC */
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234 *pxTopOfStack = 0; /* LR */
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235 pxTopOfStack -= 5; /* R12, R3, R2 and R1. */
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236 *pxTopOfStack = ( portSTACK_TYPE ) pvParameters; /* R0 */
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237 pxTopOfStack -= 9; /* R11, R10, R9, R8, R7, R6, R5 and R4. */
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239 if( xRunPrivileged == pdTRUE )
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241 *pxTopOfStack = portINITIAL_CONTROL_IF_PRIVILEGED;
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245 *pxTopOfStack = portINITIAL_CONTROL_IF_UNPRIVILEGED;
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248 return pxTopOfStack;
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250 /*-----------------------------------------------------------*/
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252 void vPortSVCHandler( void )
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254 /* Assumes psp was in use. */
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257 #ifndef USE_PROCESS_STACK /* Code should not be required if a main() is using the process stack. */
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260 " mrseq r0, msp \n"
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261 " mrsne r0, psp \n"
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266 ::"i"(prvSVCHandler):"r0"
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269 /*-----------------------------------------------------------*/
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271 static void prvSVCHandler( unsigned long *pulParam )
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273 unsigned char ucSVCNumber;
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275 /* The stack contains: r0, r1, r2, r3, r12, r14, the return address and
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276 xPSR. The first argument (r0) is pulParam[ 0 ]. */
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277 ucSVCNumber = ( ( unsigned char * ) pulParam[ portOFFSET_TO_PC ] )[ -2 ];
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278 switch( ucSVCNumber )
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280 case portSVC_START_SCHEDULER : *(portNVIC_SYSPRI1) |= portNVIC_SVC_PRI;
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281 prvRestoreContextOfFirstTask();
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284 case portSVC_YIELD : *(portNVIC_INT_CTRL) = portNVIC_PENDSVSET;
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285 /* Barriers are normally not required
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286 but do ensure the code is completely
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287 within the specified behaviour for the
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289 __asm volatile( "dsb" );
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290 __asm volatile( "isb" );
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294 case portSVC_RAISE_PRIVILEGE : __asm volatile
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296 " mrs r1, control \n" /* Obtain current control value. */
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297 " bic r1, #1 \n" /* Set privilege bit. */
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298 " msr control, r1 \n" /* Write back new control value. */
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303 default : /* Unknown SVC call. */
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307 /*-----------------------------------------------------------*/
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309 static void prvRestoreContextOfFirstTask( void )
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313 " ldr r0, =0xE000ED08 \n" /* Use the NVIC offset register to locate the stack. */
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316 " msr msp, r0 \n" /* Set the msp back to the start of the stack. */
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317 " ldr r3, pxCurrentTCBConst2 \n" /* Restore the context. */
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319 " ldr r0, [r1] \n" /* The first item in the TCB is the task top of stack. */
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320 " add r1, r1, #4 \n" /* Move onto the second item in the TCB... */
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321 " ldr r2, =0xe000ed9c \n" /* Region Base Address register. */
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322 " ldmia r1!, {r4-r11} \n" /* Read 4 sets of MPU registers. */
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323 " stmia r2!, {r4-r11} \n" /* Write 4 sets of MPU registers. */
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324 " ldmia r0!, {r3, r4-r11} \n" /* Pop the registers that are not automatically saved on exception entry. */
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325 " msr control, r3 \n"
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326 " msr psp, r0 \n" /* Restore the task stack pointer. */
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328 " msr basepri, r0 \n"
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329 " ldr r14, =0xfffffffd \n" /* Load exec return code. */
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333 "pxCurrentTCBConst2: .word pxCurrentTCB \n"
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336 /*-----------------------------------------------------------*/
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339 * See header file for description.
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341 portBASE_TYPE xPortStartScheduler( void )
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343 /* configMAX_SYSCALL_INTERRUPT_PRIORITY must not be set to 0. See
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344 http://www.FreeRTOS.org/RTOS-Cortex-M3-M4.html */
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345 configASSERT( ( configMAX_SYSCALL_INTERRUPT_PRIORITY ) );
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347 /* Make PendSV and SysTick the same priority as the kernel. */
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348 *(portNVIC_SYSPRI2) |= portNVIC_PENDSV_PRI;
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349 *(portNVIC_SYSPRI2) |= portNVIC_SYSTICK_PRI;
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351 /* Configure the regions in the MPU that are common to all tasks. */
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354 /* Start the timer that generates the tick ISR. Interrupts are disabled
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356 prvSetupTimerInterrupt();
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358 /* Initialise the critical nesting count ready for the first task. */
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359 uxCriticalNesting = 0;
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361 /* Start the first task. */
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362 __asm volatile( " svc %0 \n"
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363 :: "i" (portSVC_START_SCHEDULER) );
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365 /* Should not get here! */
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368 /*-----------------------------------------------------------*/
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370 void vPortEndScheduler( void )
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372 /* It is unlikely that the CM3 port will require this function as there
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373 is nothing to return to. */
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375 /*-----------------------------------------------------------*/
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377 void vPortEnterCritical( void )
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379 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
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381 portDISABLE_INTERRUPTS();
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382 uxCriticalNesting++;
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384 portRESET_PRIVILEGE( xRunningPrivileged );
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386 /*-----------------------------------------------------------*/
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388 void vPortExitCritical( void )
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390 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
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392 uxCriticalNesting--;
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393 if( uxCriticalNesting == 0 )
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395 portENABLE_INTERRUPTS();
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397 portRESET_PRIVILEGE( xRunningPrivileged );
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399 /*-----------------------------------------------------------*/
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401 void xPortPendSVHandler( void )
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403 /* This is a naked function. */
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409 " ldr r3, pxCurrentTCBConst \n" /* Get the location of the current TCB. */
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412 " mrs r1, control \n"
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413 " stmdb r0!, {r1, r4-r11} \n" /* Save the remaining registers. */
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414 " str r0, [r2] \n" /* Save the new top of stack into the first member of the TCB. */
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416 " stmdb sp!, {r3, r14} \n"
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418 " msr basepri, r0 \n"
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419 " bl vTaskSwitchContext \n"
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421 " msr basepri, r0 \n"
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422 " ldmia sp!, {r3, r14} \n"
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423 " \n" /* Restore the context. */
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425 " ldr r0, [r1] \n" /* The first item in the TCB is the task top of stack. */
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426 " add r1, r1, #4 \n" /* Move onto the second item in the TCB... */
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427 " ldr r2, =0xe000ed9c \n" /* Region Base Address register. */
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428 " ldmia r1!, {r4-r11} \n" /* Read 4 sets of MPU registers. */
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429 " stmia r2!, {r4-r11} \n" /* Write 4 sets of MPU registers. */
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430 " ldmia r0!, {r3, r4-r11} \n" /* Pop the registers that are not automatically saved on exception entry. */
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431 " msr control, r3 \n"
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437 "pxCurrentTCBConst: .word pxCurrentTCB \n"
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438 ::"i"(configMAX_SYSCALL_INTERRUPT_PRIORITY)
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441 /*-----------------------------------------------------------*/
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443 void xPortSysTickHandler( void )
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445 unsigned long ulDummy;
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447 ulDummy = portSET_INTERRUPT_MASK_FROM_ISR();
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449 /* Increment the RTOS tick. */
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450 if( xTaskIncrementTick() != pdFALSE )
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452 /* Pend a context switch. */
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453 *(portNVIC_INT_CTRL) = portNVIC_PENDSVSET;
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456 portCLEAR_INTERRUPT_MASK_FROM_ISR( ulDummy );
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458 /*-----------------------------------------------------------*/
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461 * Setup the systick timer to generate the tick interrupts at the required
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464 static void prvSetupTimerInterrupt( void )
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466 /* Configure SysTick to interrupt at the requested rate. */
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467 *(portNVIC_SYSTICK_LOAD) = ( configCPU_CLOCK_HZ / configTICK_RATE_HZ ) - 1UL;
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468 *(portNVIC_SYSTICK_CTRL) = portNVIC_SYSTICK_CLK | portNVIC_SYSTICK_INT | portNVIC_SYSTICK_ENABLE;
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470 /*-----------------------------------------------------------*/
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472 static void prvSetupMPU( void )
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474 extern unsigned long __privileged_functions_end__[];
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475 extern unsigned long __FLASH_segment_start__[];
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476 extern unsigned long __FLASH_segment_end__[];
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477 extern unsigned long __privileged_data_start__[];
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478 extern unsigned long __privileged_data_end__[];
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480 /* Check the expected MPU is present. */
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481 if( *portMPU_TYPE == portEXPECTED_MPU_TYPE_VALUE )
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483 /* First setup the entire flash for unprivileged read only access. */
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484 *portMPU_REGION_BASE_ADDRESS = ( ( unsigned long ) __FLASH_segment_start__ ) | /* Base address. */
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485 ( portMPU_REGION_VALID ) |
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486 ( portUNPRIVILEGED_FLASH_REGION );
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488 *portMPU_REGION_ATTRIBUTE = ( portMPU_REGION_READ_ONLY ) |
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489 ( portMPU_REGION_CACHEABLE_BUFFERABLE ) |
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490 ( prvGetMPURegionSizeSetting( ( unsigned long ) __FLASH_segment_end__ - ( unsigned long ) __FLASH_segment_start__ ) ) |
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491 ( portMPU_REGION_ENABLE );
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493 /* Setup the first 16K for privileged only access (even though less
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494 than 10K is actually being used). This is where the kernel code is
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496 *portMPU_REGION_BASE_ADDRESS = ( ( unsigned long ) __FLASH_segment_start__ ) | /* Base address. */
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497 ( portMPU_REGION_VALID ) |
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498 ( portPRIVILEGED_FLASH_REGION );
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500 *portMPU_REGION_ATTRIBUTE = ( portMPU_REGION_PRIVILEGED_READ_ONLY ) |
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501 ( portMPU_REGION_CACHEABLE_BUFFERABLE ) |
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502 ( prvGetMPURegionSizeSetting( ( unsigned long ) __privileged_functions_end__ - ( unsigned long ) __FLASH_segment_start__ ) ) |
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503 ( portMPU_REGION_ENABLE );
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505 /* Setup the privileged data RAM region. This is where the kernel data
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507 *portMPU_REGION_BASE_ADDRESS = ( ( unsigned long ) __privileged_data_start__ ) | /* Base address. */
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508 ( portMPU_REGION_VALID ) |
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509 ( portPRIVILEGED_RAM_REGION );
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511 *portMPU_REGION_ATTRIBUTE = ( portMPU_REGION_PRIVILEGED_READ_WRITE ) |
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512 ( portMPU_REGION_CACHEABLE_BUFFERABLE ) |
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513 prvGetMPURegionSizeSetting( ( unsigned long ) __privileged_data_end__ - ( unsigned long ) __privileged_data_start__ ) |
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514 ( portMPU_REGION_ENABLE );
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516 /* By default allow everything to access the general peripherals. The
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517 system peripherals and registers are protected. */
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518 *portMPU_REGION_BASE_ADDRESS = ( portPERIPHERALS_START_ADDRESS ) |
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519 ( portMPU_REGION_VALID ) |
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520 ( portGENERAL_PERIPHERALS_REGION );
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522 *portMPU_REGION_ATTRIBUTE = ( portMPU_REGION_READ_WRITE | portMPU_REGION_EXECUTE_NEVER ) |
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523 ( prvGetMPURegionSizeSetting( portPERIPHERALS_END_ADDRESS - portPERIPHERALS_START_ADDRESS ) ) |
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524 ( portMPU_REGION_ENABLE );
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526 /* Enable the memory fault exception. */
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527 *portNVIC_SYS_CTRL_STATE |= portNVIC_MEM_FAULT_ENABLE;
\r
529 /* Enable the MPU with the background region configured. */
\r
530 *portMPU_CTRL |= ( portMPU_ENABLE | portMPU_BACKGROUND_ENABLE );
\r
533 /*-----------------------------------------------------------*/
\r
535 static unsigned long prvGetMPURegionSizeSetting( unsigned long ulActualSizeInBytes )
\r
537 unsigned long ulRegionSize, ulReturnValue = 4;
\r
539 /* 32 is the smallest region size, 31 is the largest valid value for
\r
541 for( ulRegionSize = 32UL; ulReturnValue < 31UL; ( ulRegionSize <<= 1UL ) )
\r
543 if( ulActualSizeInBytes <= ulRegionSize )
\r
553 /* Shift the code by one before returning so it can be written directly
\r
554 into the the correct bit position of the attribute register. */
\r
555 return ( ulReturnValue << 1UL );
\r
557 /*-----------------------------------------------------------*/
\r
559 static portBASE_TYPE prvRaisePrivilege( void )
\r
563 " mrs r0, control \n"
\r
564 " tst r0, #1 \n" /* Is the task running privileged? */
\r
566 " movne r0, #0 \n" /* CONTROL[0]!=0, return false. */
\r
567 " svcne %0 \n" /* Switch to privileged. */
\r
568 " moveq r0, #1 \n" /* CONTROL[0]==0, return true. */
\r
570 :: "i" (portSVC_RAISE_PRIVILEGE) : "r0"
\r
575 /*-----------------------------------------------------------*/
\r
577 void vPortStoreTaskMPUSettings( xMPU_SETTINGS *xMPUSettings, const struct xMEMORY_REGION * const xRegions, portSTACK_TYPE *pxBottomOfStack, unsigned short usStackDepth )
\r
579 extern unsigned long __SRAM_segment_start__[];
\r
580 extern unsigned long __SRAM_segment_end__[];
\r
581 extern unsigned long __privileged_data_start__[];
\r
582 extern unsigned long __privileged_data_end__[];
\r
586 if( xRegions == NULL )
\r
588 /* No MPU regions are specified so allow access to all RAM. */
\r
589 xMPUSettings->xRegion[ 0 ].ulRegionBaseAddress =
\r
590 ( ( unsigned long ) __SRAM_segment_start__ ) | /* Base address. */
\r
591 ( portMPU_REGION_VALID ) |
\r
592 ( portSTACK_REGION );
\r
594 xMPUSettings->xRegion[ 0 ].ulRegionAttribute =
\r
595 ( portMPU_REGION_READ_WRITE ) |
\r
596 ( portMPU_REGION_CACHEABLE_BUFFERABLE ) |
\r
597 ( prvGetMPURegionSizeSetting( ( unsigned long ) __SRAM_segment_end__ - ( unsigned long ) __SRAM_segment_start__ ) ) |
\r
598 ( portMPU_REGION_ENABLE );
\r
600 /* Re-instate the privileged only RAM region as xRegion[ 0 ] will have
\r
601 just removed the privileged only parameters. */
\r
602 xMPUSettings->xRegion[ 1 ].ulRegionBaseAddress =
\r
603 ( ( unsigned long ) __privileged_data_start__ ) | /* Base address. */
\r
604 ( portMPU_REGION_VALID ) |
\r
605 ( portSTACK_REGION + 1 );
\r
607 xMPUSettings->xRegion[ 1 ].ulRegionAttribute =
\r
608 ( portMPU_REGION_PRIVILEGED_READ_WRITE ) |
\r
609 ( portMPU_REGION_CACHEABLE_BUFFERABLE ) |
\r
610 prvGetMPURegionSizeSetting( ( unsigned long ) __privileged_data_end__ - ( unsigned long ) __privileged_data_start__ ) |
\r
611 ( portMPU_REGION_ENABLE );
\r
613 /* Invalidate all other regions. */
\r
614 for( ul = 2; ul <= portNUM_CONFIGURABLE_REGIONS; ul++ )
\r
616 xMPUSettings->xRegion[ ul ].ulRegionBaseAddress = ( portSTACK_REGION + ul ) | portMPU_REGION_VALID;
\r
617 xMPUSettings->xRegion[ ul ].ulRegionAttribute = 0UL;
\r
622 /* This function is called automatically when the task is created - in
\r
623 which case the stack region parameters will be valid. At all other
\r
624 times the stack parameters will not be valid and it is assumed that the
\r
625 stack region has already been configured. */
\r
626 if( usStackDepth > 0 )
\r
628 /* Define the region that allows access to the stack. */
\r
629 xMPUSettings->xRegion[ 0 ].ulRegionBaseAddress =
\r
630 ( ( unsigned long ) pxBottomOfStack ) |
\r
631 ( portMPU_REGION_VALID ) |
\r
632 ( portSTACK_REGION ); /* Region number. */
\r
634 xMPUSettings->xRegion[ 0 ].ulRegionAttribute =
\r
635 ( portMPU_REGION_READ_WRITE ) | /* Read and write. */
\r
636 ( prvGetMPURegionSizeSetting( ( unsigned long ) usStackDepth * ( unsigned long ) sizeof( portSTACK_TYPE ) ) ) |
\r
637 ( portMPU_REGION_CACHEABLE_BUFFERABLE ) |
\r
638 ( portMPU_REGION_ENABLE );
\r
643 for( ul = 1; ul <= portNUM_CONFIGURABLE_REGIONS; ul++ )
\r
645 if( ( xRegions[ lIndex ] ).ulLengthInBytes > 0UL )
\r
647 /* Translate the generic region definition contained in
\r
648 xRegions into the CM3 specific MPU settings that are then
\r
649 stored in xMPUSettings. */
\r
650 xMPUSettings->xRegion[ ul ].ulRegionBaseAddress =
\r
651 ( ( unsigned long ) xRegions[ lIndex ].pvBaseAddress ) |
\r
652 ( portMPU_REGION_VALID ) |
\r
653 ( portSTACK_REGION + ul ); /* Region number. */
\r
655 xMPUSettings->xRegion[ ul ].ulRegionAttribute =
\r
656 ( prvGetMPURegionSizeSetting( xRegions[ lIndex ].ulLengthInBytes ) ) |
\r
657 ( xRegions[ lIndex ].ulParameters ) |
\r
658 ( portMPU_REGION_ENABLE );
\r
662 /* Invalidate the region. */
\r
663 xMPUSettings->xRegion[ ul ].ulRegionBaseAddress = ( portSTACK_REGION + ul ) | portMPU_REGION_VALID;
\r
664 xMPUSettings->xRegion[ ul ].ulRegionAttribute = 0UL;
\r
671 /*-----------------------------------------------------------*/
\r
673 signed portBASE_TYPE MPU_xTaskGenericCreate( pdTASK_CODE pvTaskCode, const signed char * const pcName, unsigned short usStackDepth, void *pvParameters, unsigned portBASE_TYPE uxPriority, xTaskHandle *pxCreatedTask, portSTACK_TYPE *puxStackBuffer, const xMemoryRegion * const xRegions )
\r
675 signed portBASE_TYPE xReturn;
\r
676 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
678 xReturn = xTaskGenericCreate( pvTaskCode, pcName, usStackDepth, pvParameters, uxPriority, pxCreatedTask, puxStackBuffer, xRegions );
\r
679 portRESET_PRIVILEGE( xRunningPrivileged );
\r
682 /*-----------------------------------------------------------*/
\r
684 void MPU_vTaskAllocateMPURegions( xTaskHandle xTask, const xMemoryRegion * const xRegions )
\r
686 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
688 vTaskAllocateMPURegions( xTask, xRegions );
\r
689 portRESET_PRIVILEGE( xRunningPrivileged );
\r
691 /*-----------------------------------------------------------*/
\r
693 #if ( INCLUDE_vTaskDelete == 1 )
\r
694 void MPU_vTaskDelete( xTaskHandle pxTaskToDelete )
\r
696 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
698 vTaskDelete( pxTaskToDelete );
\r
699 portRESET_PRIVILEGE( xRunningPrivileged );
\r
702 /*-----------------------------------------------------------*/
\r
704 #if ( INCLUDE_vTaskDelayUntil == 1 )
\r
705 void MPU_vTaskDelayUntil( portTickType * const pxPreviousWakeTime, portTickType xTimeIncrement )
\r
707 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
709 vTaskDelayUntil( pxPreviousWakeTime, xTimeIncrement );
\r
710 portRESET_PRIVILEGE( xRunningPrivileged );
\r
713 /*-----------------------------------------------------------*/
\r
715 #if ( INCLUDE_vTaskDelay == 1 )
\r
716 void MPU_vTaskDelay( portTickType xTicksToDelay )
\r
718 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
720 vTaskDelay( xTicksToDelay );
\r
721 portRESET_PRIVILEGE( xRunningPrivileged );
\r
724 /*-----------------------------------------------------------*/
\r
726 #if ( INCLUDE_uxTaskPriorityGet == 1 )
\r
727 unsigned portBASE_TYPE MPU_uxTaskPriorityGet( xTaskHandle pxTask )
\r
729 unsigned portBASE_TYPE uxReturn;
\r
730 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
732 uxReturn = uxTaskPriorityGet( pxTask );
\r
733 portRESET_PRIVILEGE( xRunningPrivileged );
\r
737 /*-----------------------------------------------------------*/
\r
739 #if ( INCLUDE_vTaskPrioritySet == 1 )
\r
740 void MPU_vTaskPrioritySet( xTaskHandle pxTask, unsigned portBASE_TYPE uxNewPriority )
\r
742 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
744 vTaskPrioritySet( pxTask, uxNewPriority );
\r
745 portRESET_PRIVILEGE( xRunningPrivileged );
\r
748 /*-----------------------------------------------------------*/
\r
750 #if ( INCLUDE_eTaskGetState == 1 )
\r
751 eTaskState MPU_eTaskGetState( xTaskHandle pxTask )
\r
753 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
754 eTaskState eReturn;
\r
756 eReturn = eTaskGetState( pxTask );
\r
757 portRESET_PRIVILEGE( xRunningPrivileged );
\r
761 /*-----------------------------------------------------------*/
\r
763 #if ( INCLUDE_xTaskGetIdleTaskHandle == 1 )
\r
764 xTaskHandle MPU_xTaskGetIdleTaskHandle( void )
\r
766 xTaskHandle xReturn;
\r
767 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
769 xReturn = xTaskGetIdleTaskHandle();
\r
770 portRESET_PRIVILEGE( xRunningPrivileged );
\r
774 /*-----------------------------------------------------------*/
\r
776 #if ( INCLUDE_vTaskSuspend == 1 )
\r
777 void MPU_vTaskSuspend( xTaskHandle pxTaskToSuspend )
\r
779 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
781 vTaskSuspend( pxTaskToSuspend );
\r
782 portRESET_PRIVILEGE( xRunningPrivileged );
\r
785 /*-----------------------------------------------------------*/
\r
787 #if ( INCLUDE_vTaskSuspend == 1 )
\r
788 signed portBASE_TYPE MPU_xTaskIsTaskSuspended( xTaskHandle xTask )
\r
790 signed portBASE_TYPE xReturn;
\r
791 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
793 xReturn = xTaskIsTaskSuspended( xTask );
\r
794 portRESET_PRIVILEGE( xRunningPrivileged );
\r
798 /*-----------------------------------------------------------*/
\r
800 #if ( INCLUDE_vTaskSuspend == 1 )
\r
801 void MPU_vTaskResume( xTaskHandle pxTaskToResume )
\r
803 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
805 vTaskResume( pxTaskToResume );
\r
806 portRESET_PRIVILEGE( xRunningPrivileged );
\r
809 /*-----------------------------------------------------------*/
\r
811 void MPU_vTaskSuspendAll( void )
\r
813 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
816 portRESET_PRIVILEGE( xRunningPrivileged );
\r
818 /*-----------------------------------------------------------*/
\r
820 signed portBASE_TYPE MPU_xTaskResumeAll( void )
\r
822 signed portBASE_TYPE xReturn;
\r
823 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
825 xReturn = xTaskResumeAll();
\r
826 portRESET_PRIVILEGE( xRunningPrivileged );
\r
829 /*-----------------------------------------------------------*/
\r
831 portTickType MPU_xTaskGetTickCount( void )
\r
833 portTickType xReturn;
\r
834 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
836 xReturn = xTaskGetTickCount();
\r
837 portRESET_PRIVILEGE( xRunningPrivileged );
\r
840 /*-----------------------------------------------------------*/
\r
842 unsigned portBASE_TYPE MPU_uxTaskGetNumberOfTasks( void )
\r
844 unsigned portBASE_TYPE uxReturn;
\r
845 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
847 uxReturn = uxTaskGetNumberOfTasks();
\r
848 portRESET_PRIVILEGE( xRunningPrivileged );
\r
851 /*-----------------------------------------------------------*/
\r
853 #if ( configUSE_TRACE_FACILITY == 1 )
\r
854 void MPU_vTaskList( signed char *pcWriteBuffer )
\r
856 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
858 vTaskList( pcWriteBuffer );
\r
859 portRESET_PRIVILEGE( xRunningPrivileged );
\r
862 /*-----------------------------------------------------------*/
\r
864 #if ( configGENERATE_RUN_TIME_STATS == 1 )
\r
865 void MPU_vTaskGetRunTimeStats( signed char *pcWriteBuffer )
\r
867 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
869 vTaskGetRunTimeStats( pcWriteBuffer );
\r
870 portRESET_PRIVILEGE( xRunningPrivileged );
\r
873 /*-----------------------------------------------------------*/
\r
875 #if ( configUSE_APPLICATION_TASK_TAG == 1 )
\r
876 void MPU_vTaskSetApplicationTaskTag( xTaskHandle xTask, pdTASK_HOOK_CODE pxTagValue )
\r
878 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
880 vTaskSetApplicationTaskTag( xTask, pxTagValue );
\r
881 portRESET_PRIVILEGE( xRunningPrivileged );
\r
884 /*-----------------------------------------------------------*/
\r
886 #if ( configUSE_APPLICATION_TASK_TAG == 1 )
\r
887 pdTASK_HOOK_CODE MPU_xTaskGetApplicationTaskTag( xTaskHandle xTask )
\r
889 pdTASK_HOOK_CODE xReturn;
\r
890 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
892 xReturn = xTaskGetApplicationTaskTag( xTask );
\r
893 portRESET_PRIVILEGE( xRunningPrivileged );
\r
897 /*-----------------------------------------------------------*/
\r
899 #if ( configUSE_APPLICATION_TASK_TAG == 1 )
\r
900 portBASE_TYPE MPU_xTaskCallApplicationTaskHook( xTaskHandle xTask, void *pvParameter )
\r
902 portBASE_TYPE xReturn;
\r
903 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
905 xReturn = xTaskCallApplicationTaskHook( xTask, pvParameter );
\r
906 portRESET_PRIVILEGE( xRunningPrivileged );
\r
910 /*-----------------------------------------------------------*/
\r
912 #if ( configUSE_TRACE_FACILITY == 1 )
\r
913 unsigned portBASE_TYPE MPU_xTaskGetSystemState( xTaskStatusType *pxTaskStatusArray, unsigned portBASE_TYPE uxArraySize, unsigned long *pulTotalRunTime )
\r
915 unsigned portBASE_TYPE uxReturn;
\r
916 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
918 uxReturn = xTaskGetSystemState( pxTaskStatusArray, uxArraySize, pulTotalRunTime );
\r
919 portRESET_PRIVILEGE( xRunningPrivileged );
\r
923 /*-----------------------------------------------------------*/
\r
925 #if ( INCLUDE_uxTaskGetStackHighWaterMark == 1 )
\r
926 unsigned portBASE_TYPE MPU_uxTaskGetStackHighWaterMark( xTaskHandle xTask )
\r
928 unsigned portBASE_TYPE uxReturn;
\r
929 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
931 uxReturn = uxTaskGetStackHighWaterMark( xTask );
\r
932 portRESET_PRIVILEGE( xRunningPrivileged );
\r
936 /*-----------------------------------------------------------*/
\r
938 #if ( INCLUDE_xTaskGetCurrentTaskHandle == 1 )
\r
939 xTaskHandle MPU_xTaskGetCurrentTaskHandle( void )
\r
941 xTaskHandle xReturn;
\r
942 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
944 xReturn = xTaskGetCurrentTaskHandle();
\r
945 portRESET_PRIVILEGE( xRunningPrivileged );
\r
949 /*-----------------------------------------------------------*/
\r
951 #if ( INCLUDE_xTaskGetSchedulerState == 1 )
\r
952 portBASE_TYPE MPU_xTaskGetSchedulerState( void )
\r
954 portBASE_TYPE xReturn;
\r
955 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
957 xReturn = xTaskGetSchedulerState();
\r
958 portRESET_PRIVILEGE( xRunningPrivileged );
\r
962 /*-----------------------------------------------------------*/
\r
964 xQueueHandle MPU_xQueueGenericCreate( unsigned portBASE_TYPE uxQueueLength, unsigned portBASE_TYPE uxItemSize, unsigned char ucQueueType )
\r
966 xQueueHandle xReturn;
\r
967 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
969 xReturn = xQueueGenericCreate( uxQueueLength, uxItemSize, ucQueueType );
\r
970 portRESET_PRIVILEGE( xRunningPrivileged );
\r
973 /*-----------------------------------------------------------*/
\r
975 portBASE_TYPE MPU_xQueueGenericReset( xQueueHandle pxQueue, portBASE_TYPE xNewQueue )
\r
977 portBASE_TYPE xReturn;
\r
978 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
980 xReturn = xQueueGenericReset( pxQueue, xNewQueue );
\r
981 portRESET_PRIVILEGE( xRunningPrivileged );
\r
984 /*-----------------------------------------------------------*/
\r
986 signed portBASE_TYPE MPU_xQueueGenericSend( xQueueHandle xQueue, const void * const pvItemToQueue, portTickType xTicksToWait, portBASE_TYPE xCopyPosition )
\r
988 signed portBASE_TYPE xReturn;
\r
989 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
991 xReturn = xQueueGenericSend( xQueue, pvItemToQueue, xTicksToWait, xCopyPosition );
\r
992 portRESET_PRIVILEGE( xRunningPrivileged );
\r
995 /*-----------------------------------------------------------*/
\r
997 unsigned portBASE_TYPE MPU_uxQueueMessagesWaiting( const xQueueHandle pxQueue )
\r
999 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
1000 unsigned portBASE_TYPE uxReturn;
\r
1002 uxReturn = uxQueueMessagesWaiting( pxQueue );
\r
1003 portRESET_PRIVILEGE( xRunningPrivileged );
\r
1006 /*-----------------------------------------------------------*/
\r
1008 signed portBASE_TYPE MPU_xQueueGenericReceive( xQueueHandle pxQueue, void * const pvBuffer, portTickType xTicksToWait, portBASE_TYPE xJustPeeking )
\r
1010 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
1011 signed portBASE_TYPE xReturn;
\r
1013 xReturn = xQueueGenericReceive( pxQueue, pvBuffer, xTicksToWait, xJustPeeking );
\r
1014 portRESET_PRIVILEGE( xRunningPrivileged );
\r
1017 /*-----------------------------------------------------------*/
\r
1019 signed portBASE_TYPE MPU_xQueuePeekFromISR( xQueueHandle pxQueue, void * const pvBuffer )
\r
1021 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
1022 signed portBASE_TYPE xReturn;
\r
1024 xReturn = xQueuePeekFromISR( pxQueue, pvBuffer );
\r
1025 portRESET_PRIVILEGE( xRunningPrivileged );
\r
1028 /*-----------------------------------------------------------*/
\r
1030 #if ( configUSE_MUTEXES == 1 )
\r
1031 xQueueHandle MPU_xQueueCreateMutex( void )
\r
1033 xQueueHandle xReturn;
\r
1034 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
1036 xReturn = xQueueCreateMutex( queueQUEUE_TYPE_MUTEX );
\r
1037 portRESET_PRIVILEGE( xRunningPrivileged );
\r
1041 /*-----------------------------------------------------------*/
\r
1043 #if configUSE_COUNTING_SEMAPHORES == 1
\r
1044 xQueueHandle MPU_xQueueCreateCountingSemaphore( unsigned portBASE_TYPE uxCountValue, unsigned portBASE_TYPE uxInitialCount )
\r
1046 xQueueHandle xReturn;
\r
1047 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
1049 xReturn = xQueueCreateCountingSemaphore( uxCountValue, uxInitialCount );
\r
1050 portRESET_PRIVILEGE( xRunningPrivileged );
\r
1054 /*-----------------------------------------------------------*/
\r
1056 #if ( configUSE_MUTEXES == 1 )
\r
1057 portBASE_TYPE MPU_xQueueTakeMutexRecursive( xQueueHandle xMutex, portTickType xBlockTime )
\r
1059 portBASE_TYPE xReturn;
\r
1060 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
1062 xReturn = xQueueTakeMutexRecursive( xMutex, xBlockTime );
\r
1063 portRESET_PRIVILEGE( xRunningPrivileged );
\r
1067 /*-----------------------------------------------------------*/
\r
1069 #if ( configUSE_MUTEXES == 1 )
\r
1070 portBASE_TYPE MPU_xQueueGiveMutexRecursive( xQueueHandle xMutex )
\r
1072 portBASE_TYPE xReturn;
\r
1073 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
1075 xReturn = xQueueGiveMutexRecursive( xMutex );
\r
1076 portRESET_PRIVILEGE( xRunningPrivileged );
\r
1080 /*-----------------------------------------------------------*/
\r
1082 #if ( configUSE_QUEUE_SETS == 1 )
\r
1083 xQueueSetHandle MPU_xQueueCreateSet( unsigned portBASE_TYPE uxEventQueueLength )
\r
1085 xQueueSetHandle xReturn;
\r
1086 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
1088 xReturn = xQueueCreateSet( uxEventQueueLength );
\r
1089 portRESET_PRIVILEGE( xRunningPrivileged );
\r
1093 /*-----------------------------------------------------------*/
\r
1095 #if ( configUSE_QUEUE_SETS == 1 )
\r
1096 xQueueSetMemberHandle MPU_xQueueSelectFromSet( xQueueSetHandle xQueueSet, portTickType xBlockTimeTicks )
\r
1098 xQueueSetMemberHandle xReturn;
\r
1099 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
1101 xReturn = xQueueSelectFromSet( xQueueSet, xBlockTimeTicks );
\r
1102 portRESET_PRIVILEGE( xRunningPrivileged );
\r
1106 /*-----------------------------------------------------------*/
\r
1108 #if ( configUSE_QUEUE_SETS == 1 )
\r
1109 portBASE_TYPE MPU_xQueueAddToSet( xQueueSetMemberHandle xQueueOrSemaphore, xQueueSetHandle xQueueSet )
\r
1111 portBASE_TYPE xReturn;
\r
1112 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
1114 xReturn = xQueueAddToSet( xQueueOrSemaphore, xQueueSet );
\r
1115 portRESET_PRIVILEGE( xRunningPrivileged );
\r
1119 /*-----------------------------------------------------------*/
\r
1121 #if ( configUSE_QUEUE_SETS == 1 )
\r
1122 portBASE_TYPE MPU_xQueueRemoveFromSet( xQueueSetMemberHandle xQueueOrSemaphore, xQueueSetHandle xQueueSet )
\r
1124 portBASE_TYPE xReturn;
\r
1125 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
1127 xReturn = xQueueRemoveFromSet( xQueueOrSemaphore, xQueueSet );
\r
1128 portRESET_PRIVILEGE( xRunningPrivileged );
\r
1132 /*-----------------------------------------------------------*/
\r
1134 #if configUSE_ALTERNATIVE_API == 1
\r
1135 signed portBASE_TYPE MPU_xQueueAltGenericSend( xQueueHandle pxQueue, const void * const pvItemToQueue, portTickType xTicksToWait, portBASE_TYPE xCopyPosition )
\r
1137 signed portBASE_TYPE xReturn;
\r
1138 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
1140 xReturn = signed portBASE_TYPE xQueueAltGenericSend( pxQueue, pvItemToQueue, xTicksToWait, xCopyPosition );
\r
1141 portRESET_PRIVILEGE( xRunningPrivileged );
\r
1145 /*-----------------------------------------------------------*/
\r
1147 #if configUSE_ALTERNATIVE_API == 1
\r
1148 signed portBASE_TYPE MPU_xQueueAltGenericReceive( xQueueHandle pxQueue, void * const pvBuffer, portTickType xTicksToWait, portBASE_TYPE xJustPeeking )
\r
1150 signed portBASE_TYPE xReturn;
\r
1151 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
1153 xReturn = xQueueAltGenericReceive( pxQueue, pvBuffer, xTicksToWait, xJustPeeking );
\r
1154 portRESET_PRIVILEGE( xRunningPrivileged );
\r
1158 /*-----------------------------------------------------------*/
\r
1160 #if configQUEUE_REGISTRY_SIZE > 0
\r
1161 void MPU_vQueueAddToRegistry( xQueueHandle xQueue, signed char *pcName )
\r
1163 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
1165 vQueueAddToRegistry( xQueue, pcName );
\r
1167 portRESET_PRIVILEGE( xRunningPrivileged );
\r
1170 /*-----------------------------------------------------------*/
\r
1172 void MPU_vQueueDelete( xQueueHandle xQueue )
\r
1174 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
1176 vQueueDelete( xQueue );
\r
1178 portRESET_PRIVILEGE( xRunningPrivileged );
\r
1180 /*-----------------------------------------------------------*/
\r
1182 void *MPU_pvPortMalloc( size_t xSize )
\r
1185 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
1187 pvReturn = pvPortMalloc( xSize );
\r
1189 portRESET_PRIVILEGE( xRunningPrivileged );
\r
1193 /*-----------------------------------------------------------*/
\r
1195 void MPU_vPortFree( void *pv )
\r
1197 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
\r
1201 portRESET_PRIVILEGE( xRunningPrivileged );
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1203 /*-----------------------------------------------------------*/
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1205 void MPU_vPortInitialiseBlocks( void )
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1207 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
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1209 vPortInitialiseBlocks();
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1211 portRESET_PRIVILEGE( xRunningPrivileged );
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1213 /*-----------------------------------------------------------*/
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1215 size_t MPU_xPortGetFreeHeapSize( void )
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1218 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
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1220 xReturn = xPortGetFreeHeapSize();
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1222 portRESET_PRIVILEGE( xRunningPrivileged );
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1227 /* Functions that the application writer wants to execute in privileged mode
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1228 can be defined in application_defined_privileged_functions.h. The functions
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1229 must take the same format as those above whereby the privilege state on exit
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1230 equals the privilege state on entry. For example:
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1232 void MPU_FunctionName( [parameters ] )
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1234 portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
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1236 FunctionName( [parameters ] );
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1238 portRESET_PRIVILEGE( xRunningPrivileged );
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1242 #if configINCLUDE_APPLICATION_DEFINED_PRIVILEGED_FUNCTIONS == 1
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1243 #include "application_defined_privileged_functions.h"
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