nrf_nvic.c 3.6 KB

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  1. /**
  2. * Copyright (c) 2016 - 2020, Nordic Semiconductor ASA
  3. *
  4. * All rights reserved.
  5. *
  6. * Redistribution and use in source and binary forms, with or without modification,
  7. * are permitted provided that the following conditions are met:
  8. *
  9. * 1. Redistributions of source code must retain the above copyright notice, this
  10. * list of conditions and the following disclaimer.
  11. *
  12. * 2. Redistributions in binary form, except as embedded into a Nordic
  13. * Semiconductor ASA integrated circuit in a product or a software update for
  14. * such product, must reproduce the above copyright notice, this list of
  15. * conditions and the following disclaimer in the documentation and/or other
  16. * materials provided with the distribution.
  17. *
  18. * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
  19. * contributors may be used to endorse or promote products derived from this
  20. * software without specific prior written permission.
  21. *
  22. * 4. This software, with or without modification, must only be used with a
  23. * Nordic Semiconductor ASA integrated circuit.
  24. *
  25. * 5. Any software provided in binary form under this license must not be reverse
  26. * engineered, decompiled, modified and/or disassembled.
  27. *
  28. * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
  29. * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  30. * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
  31. * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
  32. * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  33. * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  34. * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  35. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  36. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  37. * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  38. *
  39. */
  40. #include <stdlib.h>
  41. #include "nrf_soc.h"
  42. #include "nrf_error.h"
  43. static uint8_t m_in_critical_region = 0;
  44. uint32_t sd_nvic_EnableIRQ(IRQn_Type IRQn)
  45. {
  46. NVIC_EnableIRQ(IRQn);
  47. return NRF_SUCCESS;
  48. }
  49. uint32_t sd_nvic_DisableIRQ(IRQn_Type IRQn)
  50. {
  51. NVIC_DisableIRQ(IRQn);
  52. return NRF_SUCCESS;
  53. }
  54. uint32_t sd_nvic_GetPendingIRQ(IRQn_Type IRQn, uint32_t * p_pending_irq)
  55. {
  56. if (p_pending_irq != NULL)
  57. {
  58. *p_pending_irq = NVIC_GetPendingIRQ(IRQn);
  59. return NRF_SUCCESS;
  60. }
  61. return NRF_ERROR_NULL;
  62. }
  63. uint32_t sd_nvic_SetPendingIRQ(IRQn_Type IRQn)
  64. {
  65. NVIC_SetPendingIRQ(IRQn);
  66. return NRF_SUCCESS;
  67. }
  68. uint32_t sd_nvic_ClearPendingIRQ(IRQn_Type IRQn)
  69. {
  70. NVIC_ClearPendingIRQ(IRQn);
  71. return NRF_SUCCESS;
  72. }
  73. uint32_t sd_nvic_SetPriority(IRQn_Type IRQn, uint32_t priority)
  74. {
  75. NVIC_SetPriority(IRQn, priority);
  76. return NRF_SUCCESS;
  77. }
  78. uint32_t sd_nvic_GetPriority(IRQn_Type IRQn, uint32_t * p_priority)
  79. {
  80. if (p_priority != NULL)
  81. {
  82. *p_priority = NVIC_GetPriority(IRQn);
  83. return NRF_SUCCESS;
  84. }
  85. return NRF_ERROR_NULL;
  86. }
  87. uint32_t sd_nvic_SystemReset(void)
  88. {
  89. NVIC_SystemReset();
  90. return NRF_SUCCESS;
  91. }
  92. uint32_t sd_nvic_critical_region_enter(uint8_t * p_is_nested_critical_region)
  93. {
  94. __disable_irq();
  95. *p_is_nested_critical_region = (m_in_critical_region != 0);
  96. m_in_critical_region++;
  97. return NRF_SUCCESS;
  98. }
  99. uint32_t sd_nvic_critical_region_exit(uint8_t is_nested_critical_region)
  100. {
  101. m_in_critical_region--;
  102. if (is_nested_critical_region == 0)
  103. {
  104. m_in_critical_region = 0;
  105. __enable_irq();
  106. }
  107. return NRF_SUCCESS;
  108. }