text: /* Copyright (c) 2014 Nordic Semiconductor. All Rights Reserved.
   *
   * The information contained herein is confidential property of Nordic Semiconductor. The use,
   * copying, transfer or disclosure of such information is prohibited except by express written
   * agreement with Nordic Semiconductor.
   *
   */
  
  /**
   * @addtogroup ser_codecs Serialization codecs
   * @ingroup ble_sdk_lib_serialization
   */
  
  /**
   * @addtogroup ser_app_s130_codecs Application S132 codecs
   * @ingroup ser_codecs
   */
  
  /**@file
   *
   * @defgroup ble_l2cap_app L2CAP Application command request encoders and command response decoders
   * @{
   * @ingroup  ser_app_s130_codecs
   *
   * @brief    L2CAP Application command request encoders and command response decoders.
   */
  
  #ifndef BLE_L2CAP_APP_H__
  #define BLE_L2CAP_APP_H__
  
  #include "ble.h"
  #include "ble_types.h"
  #include "ble_ranges.h"
  #include "ble_err.h"
  #include "ble_l2cap.h"
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  /**@brief Register a CID with L2CAP.
   *
   * @details This registers a higher protocol layer with the L2CAP multiplexer, and is required prior to all operations on the CID.
   *
   * @param[in]     cid 			 L2CAP CID.
   * @param[in]     p_buf          Pointer to beginning of command response packet.
   * @param[in,out] p_buf_len      \c in: Size of \p p_buf buffer.
   *                               \c out: Length of encoded command packet.
   *
   * @retval NRF_SUCCESS                Encoding success.
   * @retval NRF_ERROR_NULL             Encoding failure. NULL pointer supplied.
   * @retval NRF_ERROR_INVALID_LENGTH   Encoding failure. Incorrect buffer length.
   */
  uint32_t ble_l2cap_cid_register_req_enc(uint16_t         cid,
                                          uint8_t * const  p_buf,
                                          uint32_t * const p_buf_len);
  
  /**
   * @brief Decodes response to @ref sd_ble_l2cap_cid_register command.
   *
   * @sa @ref ble_l2cap_cid_register_req_enc for command request encoder.
   *
   * @param[in]  p_buf          Pointer to beginning of command response packet.
   * @param[in]  packet_len     Length (in bytes) of response packet.
   * @param[out] p_result_code  Command result code.
   *
   * @retval NRF_SUCCESS               Decoding success.
   * @retval NRF_ERROR_NULL            Decoding failure. NULL pointer supplied.
   * @retval NRF_ERROR_INVALID_LENGTH  Decoding failure. Incorrect buffer length.
   * @retval NRF_ERROR_INVALID_DATA    Decoding failure. Decoded operation code does not match
   *                                   expected operation code.
   */
  uint32_t ble_l2cap_cid_register_rsp_dec(uint8_t const * const p_buf,
                                          uint32_t              packet_len,
                                          uint32_t * const      p_result_code);
  
  /**@brief Unregister a CID with L2CAP.
   *
   * @details This unregisters a previously registered higher protocol layer with the L2CAP multiplexer.
   *
   * @param[in]     cid        L2CAP CID.
   * @param[in]     p_buf      Pointer to beginning of command response packet.
   * @param[in,out] p_buf_len  \c in: Size of \p p_buf buffer.
   *                           \c out: Length of encoded command packet.
   *
   * @retval NRF_SUCCESS                Encoding success.
   * @retval NRF_ERROR_NULL             Encoding failure. NULL pointer supplied.
   * @retval NRF_ERROR_INVALID_LENGTH   Encoding failure. Incorrect buffer length.
   */
  uint32_t ble_l2cap_cid_unregister_req_enc(uint16_t         cid,
                                            uint8_t * const  p_buf,
                                            uint32_t * const p_buf_len);
  
  /**
   * @brief Decodes response to @ref sd_ble_l2cap_cid_unregister command.
   *
   * @sa @ref ble_l2cap_cid_unregister_req_enc for command request encoder.
   *
   * @param[in]  p_buf          Pointer to beginning of command response packet.
   * @param[in]  packet_len     Length (in bytes) of response packet.
   * @param[out] p_result_code  Command result code.
   *
   * @retval NRF_SUCCESS               Decoding success.
   * @retval NRF_ERROR_NULL            Decoding failure. NULL pointer supplied.
   * @retval NRF_ERROR_INVALID_LENGTH  Decoding failure. Incorrect buffer length.
   * @retval NRF_ERROR_INVALID_DATA    Decoding failure. Decoded operation code does not match
   *                                   expected operation code.
   */
  uint32_t ble_l2cap_cid_unregister_rsp_dec(uint8_t const * const p_buf,
                                            uint32_t              packet_len,
                                            uint32_t * const      p_result_code);
  
  /**@brief Transmit an L2CAP packet.
   *
   * @note    It is important to note that a call to this function will <b>consume an application buffer</b>, and will therefore
   *          generate a @ref BLE_EVT_TX_COMPLETE event when the packet has been transmitted.
   *          See the documentation of @ref sd_ble_tx_packet_count_get for more details.
   *
   * @param[in]     conn_handle 		Connection handle.
   * @param[in]     p_l2cap_header    Pointer to a packet header containing length and CID.
   * @param[in]     p_data      		Pointer to the data to be transmitted.
   * @param[in]     p_buf         	Pointer to beginning of command response packet.
   * @param[in,out] p_buf_len 		\c in: Size of \p p_buf buffer.
   *                           		\c out: Length of encoded command packet.
   *
   * @return @ref NRF_SUCCESS Successfully queued an L2CAP packet for transmission.
   * @return @ref NRF_ERROR_INVALID_ADDR Invalid pointer supplied.
   * @return @ref NRF_ERROR_INVALID_PARAM Invalid parameter(s) supplied, CIDs must be registered beforehand with @ref sd_ble_l2cap_cid_register.
   * @return @ref NRF_ERROR_NOT_FOUND CID not found.
   * @return @ref NRF_ERROR_NO_MEM Not enough memory to complete operation.
   * @return @ref NRF_ERROR_DATA_SIZE Invalid data size(s) supplied, see @ref BLE_L2CAP_MTU_DEF.
   */
  uint32_t ble_l2cap_tx_req_enc(uint16_t                         conn_handle,
                                ble_l2cap_header_t const * const p_l2cap_header,
                                uint8_t const * const            p_data,
                                uint8_t * const                  p_buf,
                                uint32_t * const                 p_buf_len);
  
  /**
   * @brief Decodes response to @ref sd_ble_l2cap_tx command.
   *
   * @sa @ref ble_l2cap_tx_req_enc for command request encoder.
   *
   * @param[in]  p_buf          Pointer to beginning of command response packet.
   * @param[in]  packet_len     Length (in bytes) of response packet.
   * @param[out] p_result_code  Command result code.
   *
   * @retval NRF_SUCCESS               Decoding success.
   * @retval NRF_ERROR_NULL            Decoding failure. NULL pointer supplied.
   * @retval NRF_ERROR_INVALID_LENGTH  Decoding failure. Incorrect buffer length.
   * @retval NRF_ERROR_INVALID_DATA    Decoding failure. Decoded operation code does not match
   *                                   expected operation code.
   */
  uint32_t ble_l2cap_tx_rsp_dec(uint8_t const * const p_buf,
                                uint32_t              packet_len,
                                uint32_t * const      p_result_code);
  
  
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif //BLE_L2CAP_APP_H__
  
  /**
     @}
   */
  