portmacro.h 4.2 KB

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  1. /*
  2. * FreeRTOS Kernel <DEVELOPMENT BRANCH>
  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. /*
  29. * Changes from V1.2.3
  30. *
  31. + portCPU_CLOCK_HZ definition changed to 8MHz base 10, previously it
  32. + base 16.
  33. */
  34. #ifndef PORTMACRO_H
  35. #define PORTMACRO_H
  36. /* *INDENT-OFF* */
  37. #ifdef __cplusplus
  38. extern "C" {
  39. #endif
  40. /* *INDENT-ON* */
  41. /*-----------------------------------------------------------
  42. * Port specific definitions.
  43. *
  44. * The settings in this file configure FreeRTOS correctly for the
  45. * given hardware and compiler.
  46. *
  47. * These settings should not be altered.
  48. *-----------------------------------------------------------
  49. */
  50. /* Type definitions. */
  51. #define portCHAR char
  52. #define portFLOAT float
  53. #define portDOUBLE double
  54. #define portLONG long
  55. #define portSHORT int
  56. #define portSTACK_TYPE uint8_t
  57. #define portBASE_TYPE char
  58. #define portPOINTER_SIZE_TYPE uint16_t
  59. typedef portSTACK_TYPE StackType_t;
  60. typedef signed char BaseType_t;
  61. typedef unsigned char UBaseType_t;
  62. #if ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_16_BITS )
  63. typedef uint16_t TickType_t;
  64. #define portMAX_DELAY ( TickType_t ) 0xffff
  65. #elif ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_32_BITS )
  66. typedef uint32_t TickType_t;
  67. #define portMAX_DELAY ( TickType_t ) ( 0xFFFFFFFFUL )
  68. #else
  69. #error configTICK_TYPE_WIDTH_IN_BITS set to unsupported tick type width.
  70. #endif
  71. /*-----------------------------------------------------------*/
  72. /* Critical section management. */
  73. #define portENTER_CRITICAL() \
  74. asm volatile ( "in __tmp_reg__, __SREG__" ::); \
  75. asm volatile ( "cli" ::); \
  76. asm volatile ( "push __tmp_reg__" ::)
  77. #define portEXIT_CRITICAL() \
  78. asm volatile ( "pop __tmp_reg__" ::); \
  79. asm volatile ( "out __SREG__, __tmp_reg__" ::)
  80. #define portDISABLE_INTERRUPTS() asm volatile ( "cli" ::);
  81. #define portENABLE_INTERRUPTS() asm volatile ( "sei" ::);
  82. /*-----------------------------------------------------------*/
  83. /* Architecture specifics. */
  84. #define portSTACK_GROWTH ( -1 )
  85. #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
  86. #define portBYTE_ALIGNMENT 1
  87. #define portNOP() asm volatile ( "nop" );
  88. /*-----------------------------------------------------------*/
  89. /* Kernel utilities. */
  90. extern void vPortYield( void ) __attribute__( ( naked ) );
  91. #define portYIELD() vPortYield()
  92. /*-----------------------------------------------------------*/
  93. /* Task function macros as described on the FreeRTOS.org WEB site. */
  94. #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters )
  95. #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters )
  96. /* *INDENT-OFF* */
  97. #ifdef __cplusplus
  98. }
  99. #endif
  100. /* *INDENT-ON* */
  101. #endif /* PORTMACRO_H */