text: /**
   * Copyright (c) 2014 - 2017, Nordic Semiconductor ASA
   * 
   * All rights reserved.
   * 
   * Redistribution and use in source and binary forms, with or without modification,
   * are permitted provided that the following conditions are met:
   * 
   * 1. Redistributions of source code must retain the above copyright notice, this
   *    list of conditions and the following disclaimer.
   * 
   * 2. Redistributions in binary form, except as embedded into a Nordic
   *    Semiconductor ASA integrated circuit in a product or a software update for
   *    such product, must reproduce the above copyright notice, this list of
   *    conditions and the following disclaimer in the documentation and/or other
   *    materials provided with the distribution.
   * 
   * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
   *    contributors may be used to endorse or promote products derived from this
   *    software without specific prior written permission.
   * 
   * 4. This software, with or without modification, must only be used with a
   *    Nordic Semiconductor ASA integrated circuit.
   * 
   * 5. Any software provided in binary form under this license must not be reverse
   *    engineered, decompiled, modified and/or disassembled.
   * 
   * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
   * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
   * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   * 
   */
  #include "ble_l2cap_conn.h"
  #include "conn_mw_ble_l2cap.h"
  #include "ble_serialization.h"
  
  #if defined(NRF_SD_BLE_API_VERSION) && NRF_SD_BLE_API_VERSION < 4
  uint32_t conn_mw_ble_l2cap_cid_register(uint8_t const * const p_rx_buf,
                                          uint32_t              rx_buf_len,
                                          uint8_t * const       p_tx_buf,
                                          uint32_t * const      p_tx_buf_len)
  {
      SER_ASSERT_NOT_NULL(p_rx_buf);
      SER_ASSERT_NOT_NULL(p_tx_buf);
      SER_ASSERT_NOT_NULL(p_tx_buf_len);
  
      uint16_t cid;
  
      uint32_t err_code = NRF_SUCCESS;
      uint32_t sd_err_code;
  
      err_code = ble_l2cap_cid_register_req_dec(p_rx_buf, rx_buf_len, &cid);
      SER_ASSERT(err_code == NRF_SUCCESS, err_code);
  
      sd_err_code = sd_ble_l2cap_cid_register(cid);
  
      err_code = ble_l2cap_cid_register_rsp_enc(sd_err_code, p_tx_buf, p_tx_buf_len);
      SER_ASSERT(err_code == NRF_SUCCESS, err_code);
  
      return err_code;
  }
  
  uint32_t conn_mw_ble_l2cap_cid_unregister(uint8_t const * const p_rx_buf,
                                            uint32_t              rx_buf_len,
                                            uint8_t * const       p_tx_buf,
                                            uint32_t * const      p_tx_buf_len)
  {
      SER_ASSERT_NOT_NULL(p_rx_buf);
      SER_ASSERT_NOT_NULL(p_tx_buf);
      SER_ASSERT_NOT_NULL(p_tx_buf_len);
  
      uint16_t cid;
  
      uint32_t err_code = NRF_SUCCESS;
      uint32_t sd_err_code;
  
      err_code = ble_l2cap_cid_unregister_req_dec(p_rx_buf, rx_buf_len, &cid);
      SER_ASSERT(err_code == NRF_SUCCESS, err_code);
  
      sd_err_code = sd_ble_l2cap_cid_unregister(cid);
  
      err_code = ble_l2cap_cid_unregister_rsp_enc(sd_err_code, p_tx_buf, p_tx_buf_len);
      SER_ASSERT(err_code == NRF_SUCCESS, err_code);
  
      return err_code;
  }
  
  uint32_t conn_mw_ble_l2cap_tx(uint8_t const * const p_rx_buf,
                                uint32_t              rx_buf_len,
                                uint8_t * const       p_tx_buf,
                                uint32_t * const      p_tx_buf_len)
  {
      SER_ASSERT_NOT_NULL(p_rx_buf);
      SER_ASSERT_NOT_NULL(p_tx_buf);
      SER_ASSERT_NOT_NULL(p_tx_buf_len);
  
      uint16_t             conn_handle;
      ble_l2cap_header_t   l2cap_header;
      ble_l2cap_header_t * p_l2cap_header = &l2cap_header;
      uint32_t             err_code       = NRF_SUCCESS;
      uint32_t             sd_err_code;
      uint8_t const *      p_data = NULL;
  
      err_code = ble_l2cap_tx_req_dec(p_rx_buf, rx_buf_len, &conn_handle, &p_l2cap_header, &p_data);
      SER_ASSERT(err_code == NRF_SUCCESS, err_code);
  
      sd_err_code = sd_ble_l2cap_tx(conn_handle, p_l2cap_header, p_data);
  
      err_code = ble_l2cap_tx_rsp_enc(sd_err_code, p_tx_buf, p_tx_buf_len);
      SER_ASSERT(err_code == NRF_SUCCESS, err_code);
  
      return err_code;
  }
  #endif
  
  #if NRF_SD_BLE_API_VERSION >= 5
  uint32_t conn_mw_l2cap_ch_setup(uint8_t const * const p_rx_buf,
                                  uint32_t              rx_buf_len,
                                  uint8_t * const       p_tx_buf,
                                  uint32_t * const      p_tx_buf_len)
  {
      SER_ASSERT_NOT_NULL(p_rx_buf);
      SER_ASSERT_NOT_NULL(p_tx_buf);
      SER_ASSERT_NOT_NULL(p_tx_buf_len);
  
      uint16_t                      conn_handle;
      uint16_t                      local_cid;
      uint16_t * p_local_cid = &local_cid;
      ble_l2cap_ch_setup_params_t   params;
      ble_l2cap_ch_setup_params_t * p_params = &params;
      uint32_t                      sd_err_code;
      uint32_t                      err_code = NRF_SUCCESS;
  
      err_code = ble_l2cap_ch_setup_req_dec(p_rx_buf, rx_buf_len, &conn_handle, &p_local_cid, &p_params);
      SER_ASSERT(err_code == NRF_SUCCESS, err_code);
  
      sd_err_code = sd_ble_l2cap_ch_setup(conn_handle, p_local_cid, p_params);
  
      err_code = ble_l2cap_ch_setup_rsp_enc(sd_err_code, p_tx_buf, p_tx_buf_len, p_local_cid);
      SER_ASSERT(err_code == NRF_SUCCESS, err_code);
  
      return err_code;
  }
  
  uint32_t conn_mw_l2cap_ch_release(uint8_t const * const p_rx_buf,
                                    uint32_t              rx_buf_len,
                                    uint8_t * const       p_tx_buf,
                                    uint32_t * const      p_tx_buf_len)
  {
      SER_ASSERT_NOT_NULL(p_rx_buf);
      SER_ASSERT_NOT_NULL(p_tx_buf);
      SER_ASSERT_NOT_NULL(p_tx_buf_len);
  
      uint16_t conn_handle;
      uint16_t local_cid;
      uint32_t sd_err_code;
      uint32_t err_code = NRF_SUCCESS;
  
      err_code = ble_l2cap_ch_release_req_dec(p_rx_buf, rx_buf_len, &conn_handle, &local_cid);
      SER_ASSERT(err_code == NRF_SUCCESS, err_code);
  
      sd_err_code = sd_ble_l2cap_ch_release(conn_handle, local_cid);
  
      err_code = ble_l2cap_ch_release_rsp_enc(sd_err_code, p_tx_buf, p_tx_buf_len);
      SER_ASSERT(err_code == NRF_SUCCESS, err_code);
  
      return err_code;
  }
  
  uint32_t conn_mw_l2cap_ch_rx(uint8_t const * const p_rx_buf,
                               uint32_t              rx_buf_len,
                               uint8_t * const       p_tx_buf,
                               uint32_t * const      p_tx_buf_len)
  {
      SER_ASSERT_NOT_NULL(p_rx_buf);
      SER_ASSERT_NOT_NULL(p_tx_buf);
      SER_ASSERT_NOT_NULL(p_tx_buf_len);
  
      uint16_t     conn_handle;
      uint16_t     local_cid;
      ble_data_t   ble_data;
      ble_data_t * p_ble_data = &ble_data;
      uint32_t     sd_err_code;
      uint32_t     err_code = NRF_SUCCESS;
  
      err_code = ble_l2cap_ch_rx_req_dec(p_rx_buf, rx_buf_len, &conn_handle, &local_cid, &p_ble_data);
      SER_ASSERT(err_code == NRF_SUCCESS, err_code);
  
      sd_err_code = sd_ble_l2cap_ch_rx(conn_handle, local_cid, p_ble_data);
  
      err_code = ble_l2cap_ch_rx_rsp_enc(sd_err_code, p_tx_buf, p_tx_buf_len);
      SER_ASSERT(err_code == NRF_SUCCESS, err_code);
  
      return err_code;
  }
  
  uint32_t conn_mw_l2cap_ch_tx(uint8_t const * const p_rx_buf,
                               uint32_t              rx_buf_len,
                               uint8_t * const       p_tx_buf,
                               uint32_t * const      p_tx_buf_len)
  {
      SER_ASSERT_NOT_NULL(p_rx_buf);
      SER_ASSERT_NOT_NULL(p_tx_buf);
      SER_ASSERT_NOT_NULL(p_tx_buf_len);
  
      uint16_t     conn_handle;
      uint16_t     local_cid;
      ble_data_t   ble_data;
      ble_data_t * p_ble_data = &ble_data;
      uint32_t     sd_err_code;
      uint32_t     err_code = NRF_SUCCESS;
  
      err_code = ble_l2cap_ch_tx_req_dec(p_rx_buf, rx_buf_len, &conn_handle, &local_cid, &p_ble_data);
      SER_ASSERT(err_code == NRF_SUCCESS, err_code);
  
      sd_err_code = sd_ble_l2cap_ch_tx(conn_handle, local_cid, p_ble_data);
  
      err_code = ble_l2cap_ch_tx_rsp_enc(sd_err_code, p_tx_buf, p_tx_buf_len);
      SER_ASSERT(err_code == NRF_SUCCESS, err_code);
  
      return err_code;
  }
  
  uint32_t conn_mw_l2cap_ch_flow_control(uint8_t const * const p_rx_buf,
                                         uint32_t              rx_buf_len,
                                         uint8_t * const       p_tx_buf,
                                         uint32_t * const      p_tx_buf_len)
  {
      SER_ASSERT_NOT_NULL(p_rx_buf);
      SER_ASSERT_NOT_NULL(p_tx_buf);
      SER_ASSERT_NOT_NULL(p_tx_buf_len);
  
      uint16_t   conn_handle;
      uint16_t   local_cid;
      uint16_t   credits;
      uint16_t   out_credits;
      uint16_t * p_out_credits = &out_credits;
      uint32_t   sd_err_code;
      uint32_t   err_code = NRF_SUCCESS;
  
      err_code = ble_l2cap_ch_flow_control_req_dec(p_rx_buf, rx_buf_len,
                                                  &conn_handle, &local_cid, &credits, &p_out_credits);
      SER_ASSERT(err_code == NRF_SUCCESS, err_code);
  
      sd_err_code = sd_ble_l2cap_ch_flow_control(conn_handle, local_cid, credits, p_out_credits);
  
      err_code = ble_l2cap_ch_flow_control_rsp_enc(sd_err_code, p_tx_buf, p_tx_buf_len, p_out_credits);
      SER_ASSERT(err_code == NRF_SUCCESS, err_code);
  
      return err_code;
  }
  
  #endif
  