2 FreeRTOS V7.4.0 - Copyright (C) 2013 Real Time Engineers Ltd.
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4 FEATURES AND PORTS ARE ADDED TO FREERTOS ALL THE TIME. PLEASE VISIT
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5 http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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7 ***************************************************************************
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9 * FreeRTOS tutorial books are available in pdf and paperback. *
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10 * Complete, revised, and edited pdf reference manuals are also *
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13 * Purchasing FreeRTOS documentation will not only help you, by *
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14 * ensuring you get running as quickly as possible and with an *
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15 * in-depth knowledge of how to use FreeRTOS, it will also help *
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16 * the FreeRTOS project to continue with its mission of providing *
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17 * professional grade, cross platform, de facto standard solutions *
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18 * for microcontrollers - completely free of charge! *
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20 * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
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22 * Thank you for using FreeRTOS, and thank you for your support! *
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24 ***************************************************************************
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27 This file is part of the FreeRTOS distribution.
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29 FreeRTOS is free software; you can redistribute it and/or modify it under
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30 the terms of the GNU General Public License (version 2) as published by the
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31 Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
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33 >>>>>>NOTE<<<<<< The modification to the GPL is included to allow you to
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34 distribute a combined work that includes FreeRTOS without being obliged to
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35 provide the source code for proprietary components outside of the FreeRTOS
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38 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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39 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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40 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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41 details. You should have received a copy of the GNU General Public License
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42 and the FreeRTOS license exception along with FreeRTOS; if not itcan be
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43 viewed here: http://www.freertos.org/a00114.html and also obtained by
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44 writing to Real Time Engineers Ltd., contact details for whom are available
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45 on the FreeRTOS WEB site.
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49 ***************************************************************************
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51 * Having a problem? Start by reading the FAQ "My application does *
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52 * not run, what could be wrong?" *
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54 * http://www.FreeRTOS.org/FAQHelp.html *
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56 ***************************************************************************
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59 http://www.FreeRTOS.org - Documentation, books, training, latest versions,
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60 license and Real Time Engineers Ltd. contact details.
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62 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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63 including FreeRTOS+Trace - an indispensable productivity tool, and our new
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64 fully thread aware and reentrant UDP/IP stack.
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66 http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
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67 Integrity Systems, who sell the code with commercial support,
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68 indemnification and middleware, under the OpenRTOS brand.
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70 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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71 engineered and independently SIL3 certified version for use in safety and
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72 mission critical applications that require provable dependability.
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82 #include <machine/ic.h>
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84 /*-----------------------------------------------------------
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85 * Port specific definitions.
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87 * The settings in this file configure FreeRTOS correctly for the
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88 * given hardware and compiler.
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90 * These settings should not be altered.
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91 *-----------------------------------------------------------
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94 /* Type definitions. */
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95 #define portCHAR char
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96 #define portFLOAT float
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97 #define portDOUBLE double
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98 #define portLONG long
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99 #define portSHORT short
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100 #define portSTACK_TYPE unsigned portLONG
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101 #define portBASE_TYPE portLONG
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103 #if( configUSE_16_BIT_TICKS == 1 )
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104 typedef unsigned portSHORT portTickType;
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105 #define portMAX_DELAY ( portTickType ) 0xffff
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107 typedef unsigned portLONG portTickType;
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108 #define portMAX_DELAY ( portTickType ) 0xffffffff
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110 /*-----------------------------------------------------------*/
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112 /* Architecture specifics. */
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113 #define portSTACK_GROWTH ( -1 )
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114 #define portTICK_RATE_MS ( ( portTickType ) 1000 / configTICK_RATE_HZ )
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115 #define portBYTE_ALIGNMENT 4
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116 #define portNOP() __asm__ volatile ( "mov r0, r0" )
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117 #define portCRITICAL_NESTING_IN_TCB 1
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118 #define portIRQ_TRAP_YIELD 31
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119 #define portKERNEL_INTERRUPT_PRIORITY_LEVEL 0
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120 #define portSYSTEM_INTERRUPT_PRIORITY_LEVEL 0
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121 /*-----------------------------------------------------------*/
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123 /* Task utilities. */
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125 extern void vPortYield( void );
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127 /*---------------------------------------------------------------------------*/
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129 #define portYIELD() asm __volatile__( " trap #%0 "::"i"(portIRQ_TRAP_YIELD):"memory")
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130 /*---------------------------------------------------------------------------*/
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132 extern void vTaskEnterCritical( void );
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133 extern void vTaskExitCritical( void );
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134 #define portENTER_CRITICAL() vTaskEnterCritical()
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135 #define portEXIT_CRITICAL() vTaskExitCritical()
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136 /*---------------------------------------------------------------------------*/
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138 /* Critical section management. */
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139 #define portDISABLE_INTERRUPTS() ic->cpl = ( portSYSTEM_INTERRUPT_PRIORITY_LEVEL + 1 )
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140 #define portENABLE_INTERRUPTS() ic->cpl = portKERNEL_INTERRUPT_PRIORITY_LEVEL
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142 /*---------------------------------------------------------------------------*/
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144 #define portYIELD_FROM_ISR( xHigherPriorityTaskWoken ) if( xHigherPriorityTaskWoken != pdFALSE ) vTaskSwitchContext()
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146 /*---------------------------------------------------------------------------*/
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148 #define portSAVE_CONTEXT() \
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151 "sub r1, #68 \n" /* Make space on the stack for the context. */ \
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152 "std r2, [r1] + 0 \n" \
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153 "stq r4, [r1] + 8 \n" \
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154 "stq r8, [r1] + 24 \n" \
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155 "stq r12, [r1] + 40 \n" \
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158 "std r6, [r1] + 56 \n" \
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159 "movhi r2, #16384 \n" /* Set the pointer to the IC. */ \
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160 "ldub r3, [r2] + 2 \n" /* Load the current interrupt mask. */ \
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161 "st r3, [r1]+ 64 \n" /* Store the interrupt mask on the stack. */ \
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162 "ld r2, [r0]+short(pxCurrentTCB) \n" /* Load the pointer to the TCB. */ \
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163 "st r1, [r2] \n" /* Save the stack pointer into the TCB. */ \
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164 "mov r14, r1 \n" /* Compiler expects r14 to be set to the function stack. */ \
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166 /*---------------------------------------------------------------------------*/
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168 #define portRESTORE_CONTEXT() \
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169 asm __volatile__( \
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170 "ld r2, [r0]+short(pxCurrentTCB) \n" /* Load the TCB to find the stack pointer and context. */ \
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172 "movhi r2, #16384 \n" /* Set the pointer to the IC. */ \
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173 "ld r3, [r1] + 64 \n" /* Load the previous interrupt mask. */ \
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174 "stb r3, [r2] + 2 \n" /* Set the current interrupt mask to be the previous. */ \
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175 "ldd r6, [r1] + 56 \n" /* Restore context. */ \
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178 "ldd r2, [r1] + 0 \n" \
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179 "ldq r4, [r1] + 8 \n" \
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180 "ldq r8, [r1] + 24 \n" \
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181 "ldq r12, [r1] + 40 \n" \
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186 /*---------------------------------------------------------------------------*/
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188 /* Task function macros as described on the FreeRTOS.org WEB site. */
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189 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
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190 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
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191 /*---------------------------------------------------------------------------*/
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197 #endif /* PORTMACRO_H */
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projects / freertos / blob