portmacro.h 5.1 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. #if __DATA_MODEL__ == __DATA_MODEL_FAR__ && __CODE_MODEL__ == __CODE_MODEL_NEAR__
  43. #warning This port has not been tested with your selected memory model combination. If a far data model is required it is recommended to also use a far code model.
  44. #endif
  45. #if __DATA_MODEL__ == __DATA_MODEL_NEAR__ && __CODE_MODEL__ == __CODE_MODEL_FAR__
  46. #warning This port has not been tested with your selected memory model combination. If a far code model is required it is recommended to also use a far data model.
  47. #endif
  48. /* Type definitions. */
  49. #define portCHAR char
  50. #define portFLOAT float
  51. #define portDOUBLE double
  52. #define portLONG long
  53. #define portSHORT short
  54. #define portSTACK_TYPE uint16_t
  55. #define portBASE_TYPE short
  56. typedef portSTACK_TYPE StackType_t;
  57. typedef short BaseType_t;
  58. typedef unsigned short UBaseType_t;
  59. #if __DATA_MODEL__ == __DATA_MODEL_FAR__
  60. #define portPOINTER_SIZE_TYPE uint32_t
  61. #else
  62. #define portPOINTER_SIZE_TYPE uint16_t
  63. #endif
  64. #if ( configUSE_16_BIT_TICKS == 1 )
  65. typedef unsigned int TickType_t;
  66. #define portMAX_DELAY ( TickType_t ) 0xffff
  67. #else
  68. typedef uint32_t TickType_t;
  69. #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
  70. #endif
  71. /*-----------------------------------------------------------*/
  72. /* Interrupt control macros. */
  73. #define portDISABLE_INTERRUPTS() __asm ( "DI" )
  74. #define portENABLE_INTERRUPTS() __asm ( "EI" )
  75. /*-----------------------------------------------------------*/
  76. /* Critical section control macros. */
  77. #define portNO_CRITICAL_SECTION_NESTING ( ( uint16_t ) 0 )
  78. #define portENTER_CRITICAL() \
  79. { \
  80. extern volatile uint16_t usCriticalNesting; \
  81. \
  82. portDISABLE_INTERRUPTS(); \
  83. \
  84. /* Now interrupts are disabled ulCriticalNesting can be accessed */ \
  85. /* directly. Increment ulCriticalNesting to keep a count of how many */ \
  86. /* times portENTER_CRITICAL() has been called. */ \
  87. usCriticalNesting++; \
  88. }
  89. #define portEXIT_CRITICAL() \
  90. { \
  91. extern volatile uint16_t usCriticalNesting; \
  92. \
  93. if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING ) \
  94. { \
  95. /* Decrement the nesting count as we are leaving a critical section. */ \
  96. usCriticalNesting--; \
  97. \
  98. /* If the nesting level has reached zero then interrupts should be */ \
  99. /* re-enabled. */ \
  100. if( usCriticalNesting == portNO_CRITICAL_SECTION_NESTING ) \
  101. { \
  102. portENABLE_INTERRUPTS(); \
  103. } \
  104. } \
  105. }
  106. /*-----------------------------------------------------------*/
  107. /* Task utilities. */
  108. #define portYIELD() __asm( "BRK" )
  109. #define portYIELD_FROM_ISR( xHigherPriorityTaskWoken ) do { if( xHigherPriorityTaskWoken ) vTaskSwitchContext(); } while( 0 )
  110. #define portNOP() __asm( "NOP" )
  111. /*-----------------------------------------------------------*/
  112. /* Hardwware specifics. */
  113. #define portBYTE_ALIGNMENT 2
  114. #define portSTACK_GROWTH ( -1 )
  115. #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
  116. /*-----------------------------------------------------------*/
  117. /* Task function macros as described on the FreeRTOS.org WEB site. */
  118. #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
  119. #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
  120. #ifdef __cplusplus
  121. }
  122. #endif
  123. #endif /* PORTMACRO_H */