ser_conn_dtm_cmd_decoder.c 4.4 KB

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  1. /**
  2. * Copyright (c) 2014 - 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 "app_util.h"
  41. #include "ble_dtm_conn.h"
  42. #include "ble_serialization.h"
  43. #include "nrf_error.h"
  44. #include "nrf_sdm.h"
  45. #include "ser_conn_dtm_cmd_decoder.h"
  46. #include "ser_conn_handlers.h"
  47. #include "ser_hal_transport.h"
  48. static bool m_is_ready_to_enter_dtm = false;
  49. static app_uart_stream_comm_params_t m_comm_params = { 0 };
  50. uint32_t ser_conn_dtm_command_process(uint8_t * p_command, uint16_t command_len)
  51. {
  52. SER_ASSERT_NOT_NULL(p_command);
  53. uint32_t err_code = NRF_SUCCESS;
  54. uint8_t * p_tx_buf = NULL;
  55. uint32_t tx_buf_len = 0;
  56. /* Allocate a memory buffer from HAL Transport layer for transmitting the Command Response.
  57. * Loop until a buffer is available. */
  58. do
  59. {
  60. err_code = ser_hal_transport_tx_pkt_alloc(&p_tx_buf, (uint16_t *)&tx_buf_len);
  61. if (err_code == NRF_ERROR_NO_MEM)
  62. {
  63. ser_conn_on_no_mem_handler();
  64. }
  65. }
  66. while (NRF_ERROR_NO_MEM == err_code);
  67. if (err_code == NRF_SUCCESS)
  68. {
  69. p_tx_buf[SER_PKT_TYPE_POS] = SER_PKT_TYPE_DTM_RESP;
  70. tx_buf_len -= SER_PKT_TYPE_SIZE;
  71. err_code = ble_dtm_init_req_dec(p_command, command_len, &m_comm_params);
  72. if (NRF_SUCCESS == err_code)
  73. {
  74. err_code = ble_dtm_init_rsp_enc(NRF_SUCCESS,
  75. &p_tx_buf[SER_PKT_TYPE_SIZE],
  76. &tx_buf_len);
  77. if (err_code != NRF_SUCCESS)
  78. {
  79. return NRF_ERROR_INTERNAL;
  80. }
  81. tx_buf_len += SER_PKT_TYPE_SIZE;
  82. /* Set a flag that device is ready to enter DTM mode. */
  83. m_is_ready_to_enter_dtm = true;
  84. err_code = ser_hal_transport_tx_pkt_send(p_tx_buf, (uint16_t)tx_buf_len);
  85. if (err_code != NRF_SUCCESS)
  86. {
  87. err_code = NRF_ERROR_INTERNAL;
  88. }
  89. /* TX buffer is going to be freed automatically in the HAL Transport layer. */
  90. }
  91. else
  92. {
  93. err_code = NRF_ERROR_INTERNAL;
  94. }
  95. }
  96. return err_code;
  97. }
  98. void ser_conn_is_ready_to_enter_dtm(void)
  99. {
  100. if (m_is_ready_to_enter_dtm)
  101. {
  102. /* Disable SoftDevice. */
  103. (void)sd_softdevice_disable();
  104. /* Close HAL Transport Layer. */
  105. ser_hal_transport_close();
  106. /* Start DTM mode. */
  107. (void)dtm_start(m_comm_params);
  108. }
  109. }