portmacro.h 4.4 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. /* Type definitions. */
  43. #define portCHAR char
  44. #define portFLOAT float
  45. #define portDOUBLE double
  46. #define portLONG long
  47. #define portSHORT int
  48. #define portSTACK_TYPE uint16_t
  49. #define portBASE_TYPE short
  50. typedef portSTACK_TYPE StackType_t;
  51. typedef short BaseType_t;
  52. typedef unsigned short UBaseType_t;
  53. #if( configUSE_16_BIT_TICKS == 1 )
  54. typedef uint16_t TickType_t;
  55. #define portMAX_DELAY ( TickType_t ) 0xffff
  56. #else
  57. typedef uint32_t TickType_t;
  58. #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
  59. #endif
  60. /*-----------------------------------------------------------*/
  61. /* Interrupt control macros. */
  62. #define portDISABLE_INTERRUPTS() asm volatile ( "DINT" ); asm volatile ( "NOP" )
  63. #define portENABLE_INTERRUPTS() asm volatile ( "EINT" ); asm volatile ( "NOP" )
  64. /*-----------------------------------------------------------*/
  65. /* Critical section control macros. */
  66. #define portNO_CRITICAL_SECTION_NESTING ( ( uint16_t ) 0 )
  67. #define portENTER_CRITICAL() \
  68. { \
  69. extern volatile uint16_t usCriticalNesting; \
  70. \
  71. portDISABLE_INTERRUPTS(); \
  72. \
  73. /* Now interrupts are disabled ulCriticalNesting can be accessed */ \
  74. /* directly. Increment ulCriticalNesting to keep a count of how many */ \
  75. /* times portENTER_CRITICAL() has been called. */ \
  76. usCriticalNesting++; \
  77. }
  78. #define portEXIT_CRITICAL() \
  79. { \
  80. extern volatile uint16_t usCriticalNesting; \
  81. \
  82. if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING ) \
  83. { \
  84. /* Decrement the nesting count as we are leaving a critical section. */ \
  85. usCriticalNesting--; \
  86. \
  87. /* If the nesting level has reached zero then interrupts should be */ \
  88. /* re-enabled. */ \
  89. if( usCriticalNesting == portNO_CRITICAL_SECTION_NESTING ) \
  90. { \
  91. portENABLE_INTERRUPTS(); \
  92. } \
  93. } \
  94. }
  95. /*-----------------------------------------------------------*/
  96. /* Task utilities. */
  97. extern void vPortYield( void ) __attribute__ ( ( naked ) );
  98. #define portYIELD() vPortYield()
  99. #define portNOP() asm volatile ( "NOP" )
  100. /*-----------------------------------------------------------*/
  101. /* Hardwware specifics. */
  102. #define portBYTE_ALIGNMENT 2
  103. #define portSTACK_GROWTH ( -1 )
  104. #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
  105. /*-----------------------------------------------------------*/
  106. /* Task function macros as described on the FreeRTOS.org WEB site. */
  107. #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
  108. #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
  109. #ifdef __cplusplus
  110. }
  111. #endif
  112. #endif /* PORTMACRO_H */