portmacro.h 8.0 KB

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  1. /*
  2. * FreeRTOS Kernel V10.4.6
  3. * Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
  4. *
  5. * SPDX-License-Identifier: MIT
  6. *
  7. * Permission is hereby granted, free of charge, to any person obtaining a copy of
  8. * this software and associated documentation files (the "Software"), to deal in
  9. * the Software without restriction, including without limitation the rights to
  10. * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
  11. * the Software, and to permit persons to whom the Software is furnished to do so,
  12. * subject to the following conditions:
  13. *
  14. * The above copyright notice and this permission notice shall be included in all
  15. * copies or substantial portions of the Software.
  16. *
  17. * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18. * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
  19. * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
  20. * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
  21. * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23. *
  24. * https://www.FreeRTOS.org
  25. * https://github.com/FreeRTOS
  26. *
  27. */
  28. #ifndef PORTMACRO_H
  29. #define PORTMACRO_H
  30. #ifdef __cplusplus
  31. extern "C" {
  32. #endif
  33. /*-----------------------------------------------------------
  34. * Port specific definitions.
  35. *
  36. * The settings in this file configure FreeRTOS correctly for the
  37. * given hardware and compiler.
  38. *
  39. * These settings should not be altered.
  40. *-----------------------------------------------------------
  41. */
  42. /* When the FIT configurator or the Smart Configurator is used, platform.h has to be
  43. * used. */
  44. #ifndef configINCLUDE_PLATFORM_H_INSTEAD_OF_IODEFINE_H
  45. #define configINCLUDE_PLATFORM_H_INSTEAD_OF_IODEFINE_H 0
  46. #endif
  47. /* If configUSE_TASK_DPFPU_SUPPORT is set to 1 (or undefined) then each task will
  48. * be created without a DPFPU context, and a task must call vTaskUsesDPFPU() before
  49. * making use of any DPFPU registers. If configUSE_TASK_DPFPU_SUPPORT is set to 2 then
  50. * tasks are created with a DPFPU context by default, and calling vTaskUsesDPFPU() has
  51. * no effect. If configUSE_TASK_DPFPU_SUPPORT is set to 0 then tasks never take care
  52. * of any DPFPU context (even if DPFPU registers are used). */
  53. #ifndef configUSE_TASK_DPFPU_SUPPORT
  54. #define configUSE_TASK_DPFPU_SUPPORT 1
  55. #endif
  56. /*-----------------------------------------------------------*/
  57. /* Type definitions - these are a bit legacy and not really used now, other than
  58. * portSTACK_TYPE and portBASE_TYPE. */
  59. #define portCHAR char
  60. #define portFLOAT float
  61. #define portDOUBLE double
  62. #define portLONG long
  63. #define portSHORT short
  64. #define portSTACK_TYPE uint32_t
  65. #define portBASE_TYPE long
  66. typedef portSTACK_TYPE StackType_t;
  67. typedef long BaseType_t;
  68. typedef unsigned long UBaseType_t;
  69. #if ( configUSE_16_BIT_TICKS == 1 )
  70. typedef uint16_t TickType_t;
  71. #define portMAX_DELAY ( TickType_t ) 0xffff
  72. #else
  73. typedef uint32_t TickType_t;
  74. #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
  75. /* 32-bit tick type on a 32-bit architecture, so reads of the tick count do
  76. * not need to be guarded with a critical section. */
  77. #define portTICK_TYPE_IS_ATOMIC 1
  78. #endif
  79. /*-----------------------------------------------------------*/
  80. /* Hardware specifics. */
  81. #define portBYTE_ALIGNMENT 8 /* Could make four, according to manual. */
  82. #define portSTACK_GROWTH -1
  83. #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
  84. #define portNOP() __asm volatile ( "NOP" )
  85. /* Yield equivalent to "*portITU_SWINTR = 0x01; ( void ) *portITU_SWINTR;"
  86. * where portITU_SWINTR is the location of the software interrupt register
  87. * (0x000872E0). Don't rely on the assembler to select a register, so instead
  88. * save and restore clobbered registers manually. */
  89. #define portYIELD() \
  90. __asm volatile \
  91. ( \
  92. "PUSH.L R10 \n"\
  93. "MOV.L #0x872E0, R10 \n"\
  94. "MOV.B #0x1, [R10] \n"\
  95. "CMP [R10].UB, R10 \n"\
  96. "POP R10 \n"\
  97. :::"cc" \
  98. )
  99. #define portYIELD_FROM_ISR( x ) do { if( ( x ) != pdFALSE ) portYIELD(); } while( 0 )
  100. /* Workaround to reduce errors/warnings caused by e2 studio CDT's INDEXER and CODAN. */
  101. #ifdef __CDT_PARSER__
  102. #ifndef __asm
  103. #define __asm asm
  104. #endif
  105. #ifndef __attribute__
  106. #define __attribute__( ... )
  107. #endif
  108. #endif
  109. /* These macros should not be called directly, but through the
  110. * taskENTER_CRITICAL() and taskEXIT_CRITICAL() macros. An extra check is
  111. * performed if configASSERT() is defined to ensure an assertion handler does not
  112. * inadvertently attempt to lower the IPL when the call to assert was triggered
  113. * because the IPL value was found to be above configMAX_SYSCALL_INTERRUPT_PRIORITY
  114. * when an ISR safe FreeRTOS API function was executed. ISR safe FreeRTOS API
  115. * functions are those that end in FromISR. FreeRTOS maintains a separate
  116. * interrupt API to ensure API function and interrupt entry is as fast and as
  117. * simple as possible. */
  118. #define portENABLE_INTERRUPTS() __asm volatile ( "MVTIPL #0")
  119. #ifdef configASSERT
  120. #define portASSERT_IF_INTERRUPT_PRIORITY_INVALID() configASSERT( ( ulPortGetIPL() <= configMAX_SYSCALL_INTERRUPT_PRIORITY ) )
  121. #define portDISABLE_INTERRUPTS() if( ulPortGetIPL() < configMAX_SYSCALL_INTERRUPT_PRIORITY ) __asm volatile ( "MVTIPL %0"::"i" ( configMAX_SYSCALL_INTERRUPT_PRIORITY ) )
  122. #else
  123. #define portDISABLE_INTERRUPTS() __asm volatile ( "MVTIPL %0"::"i" ( configMAX_SYSCALL_INTERRUPT_PRIORITY ) )
  124. #endif
  125. /* Critical nesting counts are stored in the TCB. */
  126. #define portCRITICAL_NESTING_IN_TCB ( 1 )
  127. /* The critical nesting functions defined within tasks.c. */
  128. extern void vTaskEnterCritical( void );
  129. extern void vTaskExitCritical( void );
  130. #define portENTER_CRITICAL() vTaskEnterCritical()
  131. #define portEXIT_CRITICAL() vTaskExitCritical()
  132. /* As this port allows interrupt nesting... */
  133. uint32_t ulPortGetIPL( void ) __attribute__( ( naked ) );
  134. void vPortSetIPL( uint32_t ulNewIPL ) __attribute__( ( naked ) );
  135. #define portSET_INTERRUPT_MASK_FROM_ISR() ulPortGetIPL(); portDISABLE_INTERRUPTS()
  136. #define portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus ) vPortSetIPL( uxSavedInterruptStatus )
  137. /*-----------------------------------------------------------*/
  138. /* Task function macros as described on the FreeRTOS.org WEB site. */
  139. #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters )
  140. #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters )
  141. /*-----------------------------------------------------------*/
  142. /* If configUSE_TASK_DPFPU_SUPPORT is set to 1 (or left undefined) then tasks are
  143. * created without a DPFPU context and must call vPortTaskUsesDPFPU() to give
  144. * themselves a DPFPU context before using any DPFPU instructions. If
  145. * configUSE_TASK_DPFPU_SUPPORT is set to 2 then all tasks will have a DPFPU context
  146. * by default. */
  147. #if( configUSE_TASK_DPFPU_SUPPORT == 1 )
  148. void vPortTaskUsesDPFPU( void );
  149. #else
  150. /* Each task has a DPFPU context already, so define this function away to
  151. * nothing to prevent it being called accidentally. */
  152. #define vPortTaskUsesDPFPU()
  153. #endif
  154. #define portTASK_USES_DPFPU() vPortTaskUsesDPFPU()
  155. /* Definition to allow compatibility with existing FreeRTOS Demo using flop.c. */
  156. #define portTASK_USES_FLOATING_POINT() vPortTaskUsesDPFPU()
  157. #ifdef __cplusplus
  158. }
  159. #endif
  160. #endif /* PORTMACRO_H */