portmacro.h 4.5 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. /*-----------------------------------------------------------
  31. * Port specific definitions.
  32. *
  33. * The settings in this file configure FreeRTOS correctly for the
  34. * given hardware and compiler.
  35. *
  36. * These settings should not be altered.
  37. *-----------------------------------------------------------
  38. */
  39. /* Type definitions. */
  40. #define portCHAR char
  41. #define portFLOAT float
  42. #define portDOUBLE double
  43. #define portLONG long
  44. #define portSHORT short
  45. #define portSTACK_TYPE uint16_t
  46. #define portBASE_TYPE short
  47. #define portPOINTER_SIZE_TYPE uint16_t
  48. typedef portSTACK_TYPE StackType_t;
  49. typedef short BaseType_t;
  50. typedef unsigned short UBaseType_t;
  51. #if( configUSE_16_BIT_TICKS == 1 )
  52. typedef uint16_t TickType_t;
  53. #define portMAX_DELAY ( TickType_t ) 0xffff
  54. #else
  55. typedef uint32_t TickType_t;
  56. #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
  57. #endif
  58. /*-----------------------------------------------------------*/
  59. /* Interrupt control macros. */
  60. #define portDISABLE_INTERRUPTS() __asm volatile ( "DI" )
  61. #define portENABLE_INTERRUPTS() __asm volatile ( "EI" )
  62. /*-----------------------------------------------------------*/
  63. /* Critical section control macros. */
  64. #define portNO_CRITICAL_SECTION_NESTING ( ( unsigned short ) 0 )
  65. #define portENTER_CRITICAL() \
  66. { \
  67. extern volatile uint16_t usCriticalNesting; \
  68. \
  69. portDISABLE_INTERRUPTS(); \
  70. \
  71. /* Now interrupts are disabled ulCriticalNesting can be accessed */ \
  72. /* directly. Increment ulCriticalNesting to keep a count of how many */ \
  73. /* times portENTER_CRITICAL() has been called. */ \
  74. usCriticalNesting++; \
  75. }
  76. #define portEXIT_CRITICAL() \
  77. { \
  78. extern volatile uint16_t usCriticalNesting; \
  79. \
  80. if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING ) \
  81. { \
  82. /* Decrement the nesting count as we are leaving a critical section. */ \
  83. usCriticalNesting--; \
  84. \
  85. /* If the nesting level has reached zero then interrupts should be */ \
  86. /* re-enabled. */ \
  87. if( usCriticalNesting == portNO_CRITICAL_SECTION_NESTING ) \
  88. { \
  89. portENABLE_INTERRUPTS(); \
  90. } \
  91. } \
  92. }
  93. /*-----------------------------------------------------------*/
  94. /* Task utilities. */
  95. #define portYIELD() __asm volatile ( "BRK" )
  96. #define portYIELD_FROM_ISR( xHigherPriorityTaskWoken ) do { if( xHigherPriorityTaskWoken ) vTaskSwitchContext(); } while( 0 )
  97. #define portNOP() __asm volatile ( "NOP" )
  98. /*-----------------------------------------------------------*/
  99. /* Hardwware specifics. */
  100. #define portBYTE_ALIGNMENT 2
  101. #define portSTACK_GROWTH ( -1 )
  102. #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
  103. /*-----------------------------------------------------------*/
  104. /* Task function macros as described on the FreeRTOS.org WEB site. */
  105. #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
  106. #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
  107. #endif /* PORTMACRO_H */