2 FreeRTOS V8.2.1 - Copyright (C) 2015 Real Time Engineers Ltd.
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5 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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7 This file is part of the FreeRTOS distribution.
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9 FreeRTOS is free software; you can redistribute it and/or modify it under
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10 the terms of the GNU General Public License (version 2) as published by the
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11 Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
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13 ***************************************************************************
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14 >>! NOTE: The modification to the GPL is included to allow you to !<<
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15 >>! distribute a combined work that includes FreeRTOS without being !<<
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16 >>! obliged to provide the source code for proprietary components !<<
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17 >>! outside of the FreeRTOS kernel. !<<
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18 ***************************************************************************
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20 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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21 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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22 FOR A PARTICULAR PURPOSE. Full license text is available on the following
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23 link: http://www.freertos.org/a00114.html
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25 ***************************************************************************
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27 * FreeRTOS provides completely free yet professionally developed, *
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28 * robust, strictly quality controlled, supported, and cross *
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29 * platform software that is more than just the market leader, it *
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30 * is the industry's de facto standard. *
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32 * Help yourself get started quickly while simultaneously helping *
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33 * to support the FreeRTOS project by purchasing a FreeRTOS *
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34 * tutorial book, reference manual, or both: *
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35 * http://www.FreeRTOS.org/Documentation *
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37 ***************************************************************************
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39 http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
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40 the FAQ page "My application does not run, what could be wrong?". Have you
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41 defined configASSERT()?
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43 http://www.FreeRTOS.org/support - In return for receiving this top quality
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44 embedded software for free we request you assist our global community by
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45 participating in the support forum.
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47 http://www.FreeRTOS.org/training - Investing in training allows your team to
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48 be as productive as possible as early as possible. Now you can receive
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49 FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
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50 Ltd, and the world's leading authority on the world's leading RTOS.
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52 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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53 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
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54 compatible FAT file system, and our tiny thread aware UDP/IP stack.
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56 http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
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57 Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
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59 http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
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60 Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
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61 licenses offer ticketed support, indemnification and commercial middleware.
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63 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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64 engineered and independently SIL3 certified version for use in safety and
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65 mission critical applications that require provable dependability.
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77 #include <machine/cpu.h>
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79 /*-----------------------------------------------------------
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80 * Port specific definitions.
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82 * The settings in this file configure FreeRTOS correctly for the
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83 * given hardware and compiler.
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85 * These settings should not be altered.
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86 *-----------------------------------------------------------
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89 /* Type definitions. */
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90 #define portCHAR char
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91 #define portFLOAT float
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92 #define portDOUBLE double
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93 #define portLONG long
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94 #define portSHORT short
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95 #define portSTACK_TYPE uint32_t
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96 #define portBASE_TYPE long
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98 typedef portSTACK_TYPE StackType_t;
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99 typedef long BaseType_t;
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100 typedef unsigned long UBaseType_t;
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102 #if( configUSE_16_BIT_TICKS == 1 )
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103 typedef uint16_t TickType_t;
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104 #define portMAX_DELAY ( TickType_t ) 0xffff
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106 typedef uint32_t TickType_t;
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107 #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
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109 /*-----------------------------------------------------------*/
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111 /* Architecture specifics. */
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112 #define portSTACK_GROWTH ( -1 )
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113 #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
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114 #define portBYTE_ALIGNMENT 4
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115 #define portNOP() __asm__ volatile ( "mov r0, r0" )
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116 #define portCRITICAL_NESTING_IN_TCB 1
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117 #define portIRQ_TRAP_YIELD 31
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118 /*-----------------------------------------------------------*/
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120 /* Task utilities. */
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122 extern void vPortYield( void );
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124 /*---------------------------------------------------------------------------*/
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126 #define portYIELD() asm __volatile__( " trap #%0 "::"i"(portIRQ_TRAP_YIELD):"memory")
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127 /*---------------------------------------------------------------------------*/
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129 extern void vTaskEnterCritical( void );
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130 extern void vTaskExitCritical( void );
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131 #define portENTER_CRITICAL() vTaskEnterCritical()
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132 #define portEXIT_CRITICAL() vTaskExitCritical()
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133 /*---------------------------------------------------------------------------*/
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135 /* Critical section management. */
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136 #define portDISABLE_INTERRUPTS() cpu_int_disable()
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137 #define portENABLE_INTERRUPTS() cpu_int_enable()
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139 /*---------------------------------------------------------------------------*/
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141 #define portYIELD_FROM_ISR( xHigherPriorityTaskWoken ) if( xHigherPriorityTaskWoken != pdFALSE ) vTaskSwitchContext()
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143 /*---------------------------------------------------------------------------*/
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145 #define portSAVE_CONTEXT() \
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148 "sub r1, #68 \n" /* Make space on the stack for the context. */ \
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149 "std r2, [r1] + 0 \n" \
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150 "stq r4, [r1] + 8 \n" \
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151 "stq r8, [r1] + 24 \n" \
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152 "stq r12, [r1] + 40 \n" \
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155 "std r6, [r1] + 56 \n" \
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156 "movhi r2, #16384 \n" /* Set the pointer to the IC. */ \
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157 "ldub r3, [r2] + 2 \n" /* Load the current interrupt mask. */ \
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158 "st r3, [r1]+ 64 \n" /* Store the interrupt mask on the stack. */ \
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159 "ld r2, [r0]+short(pxCurrentTCB) \n" /* Load the pointer to the TCB. */ \
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160 "st r1, [r2] \n" /* Save the stack pointer into the TCB. */ \
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161 "mov r14, r1 \n" /* Compiler expects r14 to be set to the function stack. */ \
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163 /*---------------------------------------------------------------------------*/
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165 #define portRESTORE_CONTEXT() \
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166 asm __volatile__( \
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167 "ld r2, [r0]+short(pxCurrentTCB) \n" /* Load the TCB to find the stack pointer and context. */ \
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169 "movhi r2, #16384 \n" /* Set the pointer to the IC. */ \
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170 "ld r3, [r1] + 64 \n" /* Load the previous interrupt mask. */ \
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171 "stb r3, [r2] + 2 \n" /* Set the current interrupt mask to be the previous. */ \
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172 "ldd r6, [r1] + 56 \n" /* Restore context. */ \
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175 "ldd r2, [r1] + 0 \n" \
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176 "ldq r4, [r1] + 8 \n" \
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177 "ldq r8, [r1] + 24 \n" \
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178 "ldq r12, [r1] + 40 \n" \
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183 /*---------------------------------------------------------------------------*/
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185 /* Task function macros as described on the FreeRTOS.org WEB site. */
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186 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
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187 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
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188 /*---------------------------------------------------------------------------*/
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194 #endif /* PORTMACRO_H */
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projects / freertos / blob