/**
 * Copyright (c) 2013 - 2020, 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
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 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 */
#ifndef BLE_APP_H__
#define BLE_APP_H__

/**
 * @addtogroup ser_codecs Serialization codecs
 * @ingroup ble_sdk_lib_serialization
 */

/**
 * @addtogroup ser_app_s130_codecs Application codecs for S132 and S140
 * @ingroup ser_codecs_app
 */

/**@file
 *
 * @defgroup ble_app Application command request encoders and command response decoders
 * @{
 * @ingroup  ser_app_s130_codecs
 *
 * @brief    Application command request encoders and command response decoders.
 */
#include "ble.h"

#ifdef __cplusplus
extern "C" {
#endif
#if defined(NRF_SD_BLE_API_VERSION) && NRF_SD_BLE_API_VERSION < 4
/**
 * @brief Encodes @ref sd_ble_tx_packet_count_get command request.
 *
 * @sa @ref ble_tx_packet_count_get_rsp_dec for command response decoder.
 *
 * @param[in] conn_handle    Connection handle.
 * @param[in] p_count        Pointer to count value to be filled.
 * @param[in] p_buf          Pointer to buffer where encoded data command will be returned.
 * @param[in,out] p_buf_len  \c in: Size of \p p_buf buffer.
 *                           \c out: Length of the encoded command packet.
 *
 * @note  \p p_count will not be updated by the command
 *        request encoder. Updated values are set by @ref ble_tx_packet_count_get_rsp_dec.
 *
 * @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_tx_packet_count_get_req_enc(uint16_t              conn_handle,
                                         uint8_t const * const p_count,
                                         uint8_t * const       p_buf,
                                         uint32_t * const      p_buf_len);

/**
 * @brief Decodes a response to @ref sd_ble_tx_packet_count_get command.
 *
 * @sa @ref ble_tx_packet_count_get_req_enc for command request encoder.
 *
 * @param[in] p_buf           Pointer to the beginning of a command response packet.
 * @param[in] packet_len      Length (in bytes) of the response packet.
 * @param[out] pp_count       Pointer to the pointer to count value.
 * @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_tx_packet_count_get_rsp_dec(uint8_t const * const p_buf,
                                         uint32_t              packet_len,
                                         uint8_t * * const     pp_count,
                                         uint32_t * const      p_result_code);
#endif
/**@brief Encodes the @ref sd_ble_uuid_encode command request.
 *
 * @sa @ref ble_uuid_encode_rsp_dec for command response decoder.
 *
 * @param[in] p_uuid         Pointer to a @ref ble_uuid_t structure that will be encoded into bytes.
 * @param[in] p_uuid_le_len  Size of \p p_uuid_le, if \p p_uuid_le is not NULL
 * @param[in] p_uuid_le      Pointer to a buffer where the little endian raw UUID bytes(2 or 16)
 *                           will be stored. Can be NULL to calculate the required size.
 * @param[in] p_buf          Pointer to a buffer where the encoded data command will be returned.
 * @param[in,out] p_buf_len  \c in: Size of \p p_buf buffer.
 *                           \c out: Length of the encoded command packet.
 *
 * @note  \p p_uuid_le_len and \p p_uuid_le will not be updated by the command
 *        request encoder. Updated values are set by @ref ble_uuid_encode_rsp_dec.
 *
 * @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_uuid_encode_req_enc(ble_uuid_t const * const p_uuid,
                                 uint8_t const * const    p_uuid_le_len,
                                 uint8_t const * const    p_uuid_le,
                                 uint8_t * const          p_buf,
                                 uint32_t * const         p_buf_len);

/**@brief Decodes a response to the @ref sd_ble_uuid_encode command.
 *
 * @sa @ref ble_uuid_encode_req_enc for command request encoder.
 *
 * @param[in] p_buf              Pointer to the beginning of a command response packet.
 * @param[in] packet_len         Length (in bytes) of a response packet.
 * @param[in,out] p_uuid_le_len  \c in: Size (in bytes) of \p p_uuid_le buffer.
 *                               \c out: Length of decoded contents of \p p_uuid_le.
 * @param[out] p_uuid_le         Pointer to a buffer where the encoded UUID will be stored.
 * @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_DATA_SIZE       Length of \p p_uuid_le is too small to hold the decoded
 *                                   value from response.
 * @retval NRF_ERROR_INVALID_DATA    Decoding failure. Decoded operation code does not match the expected
 *                                   operation code.
 */
uint32_t ble_uuid_encode_rsp_dec(uint8_t const * const p_buf,
                                 uint32_t              packet_len,
                                 uint8_t * const       p_uuid_le_len,
                                 uint8_t * const       p_uuid_le,
                                 uint32_t * const      p_result_code);

/**@brief Encodes @ref sd_ble_uuid_decode command request.
 *
 * @sa @ref ble_uuid_decode_rsp_dec for command response decoder.
 *
 * @param[in] uuid_le_len    Size of \p p_uuid_le if \p p_uuid_le is not NULL.
 * @param[in] p_uuid_le      Pointer to a buffer where the little endian raw UUID bytes(2 or 16)
 *                           are stored.
 * @param[out] p_uuid        Pointer to a @ref ble_uuid_t structure were the raw UUID will be decoded.
 * @param[in]  p_buf         Pointer to the buffer where encoded data command will be returned.
 * @param[in,out] p_buf_len  \c in: Size of \p p_buf buffer.
 *                           \c out: Length of the encoded command packet.
 *
 * @note  \p p_uuid will not be updated by the command request encoder.
 *           Updated values are set by @ref ble_uuid_decode_rsp_dec.
 *
 * @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_uuid_decode_req_enc(uint8_t               uuid_le_len,
                                 uint8_t const * const p_uuid_le,
                                 ble_uuid_t * const    p_uuid,
                                 uint8_t * const       p_buf,
                                 uint32_t * const      p_buf_len);

/**@brief Decodes a response to the @ref sd_ble_uuid_decode command.
 *
 * @sa @ref ble_uuid_decode_req_enc for command request encoder.
 *
 * @param[in] p_buf              Pointer to the beginning of command response packet.
 * @param[in] packet_len         Length (in bytes) of the response packet.
 * @param[out] p_uuid            Pointer to a buffer where the decoded UUID will be stored.
 * @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 the expected
 *                                   operation code.
 */
uint32_t ble_uuid_decode_rsp_dec(uint8_t const * const p_buf,
                                 uint32_t              packet_len,
                                 ble_uuid_t * * const  p_uuid,
                                 uint32_t * const      p_result_code);

/**@brief Encodes the @ref sd_ble_uuid_vs_add command request.
 *
 * @sa @ref ble_uuid_vs_add_rsp_dec for command response decoder.
 *
 * @param[in] p_vs_uuid     Pointer to a @ref ble_uuid128_t structure.
 * @param[in] p_uuid_type   Pointer to uint8_t where UUID type will be returned.
 * @param[in] p_buf         Pointer to buffer where the encoded data command will be returned.
 * @param[in,out] p_buf_len \c in: Size of \p p_buf buffer.
 *                          \c out: Length of encoded command packet.
 *
 * @note  \p p_uuid_type will not be updated by the command request encoder.
 *           Updated values are set by @ref ble_uuid_vs_add_rsp_dec.
 *
 * @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_uuid_vs_add_req_enc(ble_uuid128_t const * const p_vs_uuid,
                                 uint8_t * const             p_uuid_type,
                                 uint8_t * const             p_buf,
                                 uint32_t * const            p_buf_len);

/**@brief Decodes response to the @ref sd_ble_uuid_vs_add command.
 *
 * @sa @ref ble_uuid_vs_add_req_enc for command request encoder.
 *
 * @param[in] p_buf          Pointer to the beginning of command response packet.
 * @param[in] packet_len     Length (in bytes) of a response packet.
 * @param[out] pp_uuid_type  Pointer to a pointer to uint8_t where the decoded UUID type will be stored.
 * @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_uuid_vs_add_rsp_dec(uint8_t const * const p_buf,
                                 uint32_t              packet_len,
                                 uint8_t * * const     pp_uuid_type,
                                 uint32_t * const      p_result_code);

/**@brief Encodes the @ref sd_ble_version_get command request.
 *
 * @sa @ref ble_version_get_rsp_dec for command response decoder.
 *
 * @param[in] p_version      Pointer to a @ref ble_version_t structure to be filled by the response.
 * @param[in] p_buf          Pointer to a buffer where the encoded data command will be returned.
 * @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_version_get_req_enc(ble_version_t const * const p_version,
                                 uint8_t * const             p_buf,
                                 uint32_t * const            p_buf_len);

/**@brief Decodes response to the @ref sd_ble_version_get command.
 *
 * @sa @ref ble_version_get_req_enc for command request encoder.
 *
 * @param[in] p_buf             Pointer to the beginning of a command response packet.
 * @param[in] packet_len        Length (in bytes) of the response packet.
 * @param[out] p_version        Pointer to a @ref ble_version_t where the decoded version will be stored.
 * @param[out] p_result_code    Command result code.
 *
 * @retval NRF_SUCCESS              Version information stored successfully.
 * @retval NRF_ERROR_INVALID_LENGTH Decoding failure. Incorrect buffer length.
 * @retval NRF_ERROR_DATA_SIZE      Decoding failure. Length of \p p_event is too small to
 *                                  hold the decoded event.
 */
uint32_t ble_version_get_rsp_dec(uint8_t const * const p_buf,
                                 uint32_t              packet_len,
                                 ble_version_t *       p_version,
                                 uint32_t * const      p_result_code);


/**@brief Encodes the @ref sd_ble_opt_set command request.
 *
 * @sa @ref ble_opt_set_rsp_dec for command response decoder.
 *
 * @param[in] opt_id         Identifies type of parameter in ble_opt_t union.
 * @param[in] p_opt          Pointer to the ble_opt_t union.
 * @param[in] p_buf          Pointer to a buffer where the encoded data command will be returned.
 * @param[in,out] p_buf_len  \c in: Size of \p p_buf buffer.
 *                           \c out: Length of the 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.
 * @retval NRF_ERROR_INVALID_PARAM    Invalid opt id.
 */
uint32_t ble_opt_set_req_enc(uint32_t const          opt_id,
                             ble_opt_t const * const p_opt,
                             uint8_t * const         p_buf,
                             uint32_t * const        p_buf_len);

/**@brief Decodes response to the @ref sd_ble_opt_set command.
 *
 * @sa @ref ble_opt_set_req_enc for command request encoder.
 *
 * @param[in] p_buf              Pointer to the beginning of a command response packet.
 * @param[in] packet_len         Length (in bytes) of the response packet.
 * @param[out] p_result_code     Command result code.
 *
 * @retval NRF_SUCCESS              Version information stored successfully.
 * @retval NRF_ERROR_INVALID_LENGTH Decoding failure. Incorrect buffer length.
 */
uint32_t ble_opt_set_rsp_dec(uint8_t const * const p_buf,
                             uint32_t              packet_len,
                             uint32_t * const      p_result_code);

#if defined(NRF_SD_BLE_API_VERSION) && NRF_SD_BLE_API_VERSION < 4
/**@brief Encodes the @ref sd_ble_enable command request.
 *
 * @sa @ref ble_enable_rsp_dec for command response decoder.
 *
 * @param[in] p_ble_enable_params     Pointer to the @ref ble_enable_params_t structure.
 * @param[in] p_buf                   Pointer to the buffer where encoded data command will be returned.
 * @param[in,out] p_buf_len           \c in: Size of \p p_buf buffer.
 *                                    \c out: Length of the 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_enable_req_enc(ble_enable_params_t * p_ble_enable_params,
                            uint8_t * const       p_buf,
                            uint32_t * const      p_buf_len);
#else
/**@brief Encodes the @ref sd_ble_enable command request.
 *
 * @sa @ref ble_enable_rsp_dec for command response decoder.
 *
 * @param[in] p_buf                     Pointer to the buffer where encoded data command will be returned.
 * @param[in,out] p_buf_len             \c in: Size of \p p_buf buffer.
 *                                      \c out: Length of the 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_enable_req_enc(uint8_t * const       p_buf,
                            uint32_t * const      p_buf_len);

#endif

/**@brief Decodes response to the @ref sd_ble_enable command.
 *
 * @sa @ref ble_enable_req_enc for command request encoder.
 *
 * @param[in] p_buf          Pointer to the beginning of a command response packet.
 * @param[in] packet_len     Length (in bytes) of the response packet.
 * @param[out] p_result_code Command result code.
 *
 * @retval NRF_SUCCESS              Success.
 * @retval NRF_ERROR_INVALID_LENGTH Decoding failure. Incorrect buffer length.
 * @retval NRF_ERROR_DATA_SIZE      Decoding failure. Length of \p p_event is too small to
 *                                  hold the decoded event.
 */
uint32_t ble_enable_rsp_dec(uint8_t const * const p_buf,
                            uint32_t              packet_len,
                            uint32_t * const      p_result_code);
/**@brief Encodes the @ref sd_ble_opt_get command request.
 *
 * @sa @ref ble_opt_get_rsp_dec for command response decoder.
 *
 * @param[in] opt_id         Identifies the type of parameter in the ble_opt_t union.
 * @param[in] p_opt          Pointer to the @ref ble_opt_t union to be filled by the response.
 * @param[in] p_buf          Pointer to the buffer where the encoded data command will be returned.
 * @param[in,out] p_buf_len  \c in: Size of \p p_buf buffer.
 *                           \c out: Length of the 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.
 * @retval NRF_ERROR_INVALID_PARAM    Invalid opt id.
 */
uint32_t ble_opt_get_req_enc(uint32_t                opt_id,
                             ble_opt_t const * const p_opt,
                             uint8_t * const         p_buf,
                             uint32_t * const        p_buf_len);

/**@brief Decodes response to the @ref sd_ble_opt_get command.
 *
 * @sa @ref ble_opt_get_req_enc for command request encoder.
 *
 * @param[in] p_buf               Pointer to the beginning of a command response packet.
 * @param[in] packet_len          Length (in bytes) of the response packet.
 * @param[out] p_opt_id           Pointer to the decoded opt_id.
 * @param[out] p_opt              Pointer to the decoded @ref ble_opt_t union.
 * @param[out] p_result_code      Command result code.
 *
 * @retval NRF_SUCCESS              Opt stored successfully.
 * @retval NRF_ERROR_INVALID_LENGTH Decoding failure. Incorrect buffer length.
 * @retval NRF_ERROR_DATA_SIZE      Decoding failure. Length of \p p_event is too small to
 *                                  hold the decoded event.
 * @retval NRF_ERROR_INVALID_PARAM  Invalid opt id.
 */

uint32_t ble_opt_get_rsp_dec(uint8_t const * const p_buf,
                             uint32_t              packet_len,
                             uint32_t      * const p_opt_id,
                             ble_opt_t     * const p_opt,
                             uint32_t      * const p_result_code);

/**@brief Encodes the @ref sd_ble_user_mem_reply command request.
 *
 * @sa @ref ble_user_mem_reply_rsp_dec for command response decoder.
 *
 * @param[in] conn_handle    Connection handle.
 * @param[in] p_block        Pointer to the @ref ble_user_mem_block_t structure.
 * @param[in] p_buf          Pointer to the buffer where the encoded data command will be returned.
 * @param[in,out] p_buf_len  \c in: Size of \p p_buf buffer.
 *                           \c out: Length of the 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.
 * @retval NRF_ERROR_INVALID_PARAM    Invalid opt id.
 */
uint32_t ble_user_mem_reply_req_enc(uint16_t                     conn_handle,
                                    ble_user_mem_block_t const * p_block,
                                    uint8_t * const              p_buf,
                                    uint32_t * const             p_buf_len);

/**@brief Decodes response to the @ref sd_ble_user_mem_reply command.
 *
 * @sa @ref ble_user_mem_reply_req_enc for command request encoder.
 *
 * @param[in] p_buf                 Pointer to the beginning of a command response packet.
 * @param[in] packet_len            Length (in bytes) of the response packet.
 * @param[out] p_result_code        Command result code.
 *
 * @retval NRF_SUCCESS              Opt stored successfully.
 * @retval NRF_ERROR_INVALID_LENGTH Decoding failure. Incorrect buffer length.
 * @retval NRF_ERROR_DATA_SIZE      Decoding failure. Length of \p p_event is too small to
 *                                  hold the decoded event.
 * @retval NRF_ERROR_INVALID_PARAM  Invalid opt id.
 */
uint32_t ble_user_mem_reply_rsp_dec(uint8_t const * const p_buf,
                                    uint32_t              packet_len,
                                    uint32_t      * const p_result_code);
#if NRF_SD_BLE_API_VERSION >= 4
/**@brief Encodes the @ref sd_ble_cfg_set command request.
 *
 * @sa @ref ble_cfg_set_rsp_dec for command response decoder.
 *
 * @param[in] cfg_id         Configuratio id.
 * @param[in] p_cfg          Pointer to the configuration.
 * @param[in] p_buf          Pointer to the buffer where the encoded data command will be returned.
 * @param[in,out] p_buf_len  \c in: Size of \p p_buf buffer.
 *                           \c out: Length of the 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.
 * @retval NRF_ERROR_INVALID_PARAM    Invalid opt id.
 */
uint32_t ble_cfg_set_req_enc(uint32_t          cfg_id,
                             ble_cfg_t const * p_cfg,
                             uint8_t * const   p_buf,
                             uint32_t * const  p_buf_len);

/**@brief Decodes response to the @ref sd_ble_cfg_set command.
 *
 * @sa @ref ble_cfg_set_req_enc for command request encoder.
 *
 * @param[in] p_buf                 Pointer to the beginning of a command response packet.
 * @param[in] packet_len            Length (in bytes) of the response packet.
 * @param[out] p_result_code        Command result code.
 *
 * @retval NRF_SUCCESS              Opt stored successfully.
 * @retval NRF_ERROR_INVALID_LENGTH Decoding failure. Incorrect buffer length.
 * @retval NRF_ERROR_DATA_SIZE      Decoding failure. Length of \p p_event is too small to
 *                                  hold the decoded event.
 * @retval NRF_ERROR_INVALID_PARAM  Invalid opt id.
 */
uint32_t ble_cfg_set_rsp_dec(uint8_t const * const p_buf,
                             uint32_t              packet_len,
                             uint32_t * const      p_result_code);
#endif //NRF_SD_BLE_API_VERSION >= 4

/**@brief Event decoding dispatcher.
 *
 * The event decoding dispatcher will route the event packet to the correct decoder, which in turn
 * decodes the contents of the event and updates the \p p_event struct.
 *
 * If \p p_event is null, the required length of \p p_event is returned in \p p_event_len.
 *
 * @param[in] p_buf            Pointer to the beginning of the event packet.
 * @param[in] packet_len       Length (in bytes) of the event packet.
 * @param[in,out] p_event      Pointer to the \ref ble_evt_t buffer where the decoded event will be
 *                             stored. If NULL, the required length will be returned in \p p_event_len.
 * @param[in,out] p_event_len  \c in: Size (in bytes) of \p p_event buffer.
 *                             \c out: Length of the decoded contents of \p p_event.
 *
 * @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_DATA_SIZE       Decoding failure. Length of \p p_event is too small to
 *                                   hold the decoded event.
 * @retval NRF_ERROR_NOT_FOUND       Decoding failure. No event decoder is available.
 */
uint32_t ble_event_dec(uint8_t const * const p_buf,
                       uint32_t              packet_len,
                       ble_evt_t * const     p_event,
                       uint32_t * const      p_event_len);

/** @} */

#ifdef __cplusplus
}
#endif

#endif
