243 lines
11 KiB
C
243 lines
11 KiB
C
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/**
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* Copyright (c) 2014 - 2020, Nordic Semiconductor ASA
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form, except as embedded into a Nordic
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* Semiconductor ASA integrated circuit in a product or a software update for
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* such product, must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* 4. This software, with or without modification, must only be used with a
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* Nordic Semiconductor ASA integrated circuit.
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*
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* 5. Any software provided in binary form under this license must not be reverse
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* engineered, decompiled, modified and/or disassembled.
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*
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* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/**@file
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*
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* @defgroup ble_l2cap_app L2CAP Application command request encoders and command response decoders
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* @{
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* @ingroup ser_app_s130_codecs
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*
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* @brief L2CAP Application command request encoders and command response decoders.
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*/
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#ifndef BLE_L2CAP_APP_H__
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#define BLE_L2CAP_APP_H__
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#include "ble.h"
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#include "ble_types.h"
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#include "ble_ranges.h"
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#include "ble_err.h"
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#include "ble_l2cap.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if defined(NRF_SD_BLE_API_VERSION) && NRF_SD_BLE_API_VERSION < 4
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/**@brief Register a CID with L2CAP.
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*
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* @details This registers a higher protocol layer with the L2CAP multiplexer, and is required prior to all operations on the CID.
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*
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* @param[in] cid L2CAP CID.
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* @param[in] p_buf Pointer to beginning of command response packet.
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* @param[in,out] p_buf_len \c in: Size of \p p_buf buffer.
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* \c out: Length of encoded command packet.
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*
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* @retval NRF_SUCCESS Encoding success.
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* @retval NRF_ERROR_NULL Encoding failure. NULL pointer supplied.
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* @retval NRF_ERROR_INVALID_LENGTH Encoding failure. Incorrect buffer length.
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*/
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uint32_t ble_l2cap_cid_register_req_enc(uint16_t cid,
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uint8_t * const p_buf,
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uint32_t * const p_buf_len);
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/**
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* @brief Decodes response to @ref sd_ble_l2cap_cid_register command.
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*
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* @sa @ref ble_l2cap_cid_register_req_enc for command request encoder.
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*
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* @param[in] p_buf Pointer to beginning of command response packet.
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* @param[in] packet_len Length (in bytes) of response packet.
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* @param[out] p_result_code Command result code.
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*
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* @retval NRF_SUCCESS Decoding success.
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* @retval NRF_ERROR_NULL Decoding failure. NULL pointer supplied.
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* @retval NRF_ERROR_INVALID_LENGTH Decoding failure. Incorrect buffer length.
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* @retval NRF_ERROR_INVALID_DATA Decoding failure. Decoded operation code does not match
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* expected operation code.
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*/
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uint32_t ble_l2cap_cid_register_rsp_dec(uint8_t const * const p_buf,
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uint32_t packet_len,
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uint32_t * const p_result_code);
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/**@brief Unregister a CID with L2CAP.
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*
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* @details This unregisters a previously registered higher protocol layer with the L2CAP multiplexer.
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*
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* @param[in] cid L2CAP CID.
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* @param[in] p_buf Pointer to beginning of command response packet.
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* @param[in,out] p_buf_len \c in: Size of \p p_buf buffer.
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* \c out: Length of encoded command packet.
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*
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* @retval NRF_SUCCESS Encoding success.
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* @retval NRF_ERROR_NULL Encoding failure. NULL pointer supplied.
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* @retval NRF_ERROR_INVALID_LENGTH Encoding failure. Incorrect buffer length.
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*/
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uint32_t ble_l2cap_cid_unregister_req_enc(uint16_t cid,
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uint8_t * const p_buf,
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uint32_t * const p_buf_len);
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/**
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* @brief Decodes response to @ref sd_ble_l2cap_cid_unregister command.
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*
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* @sa @ref ble_l2cap_cid_unregister_req_enc for command request encoder.
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*
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* @param[in] p_buf Pointer to beginning of command response packet.
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* @param[in] packet_len Length (in bytes) of response packet.
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* @param[out] p_result_code Command result code.
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*
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* @retval NRF_SUCCESS Decoding success.
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* @retval NRF_ERROR_NULL Decoding failure. NULL pointer supplied.
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* @retval NRF_ERROR_INVALID_LENGTH Decoding failure. Incorrect buffer length.
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* @retval NRF_ERROR_INVALID_DATA Decoding failure. Decoded operation code does not match
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* expected operation code.
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*/
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uint32_t ble_l2cap_cid_unregister_rsp_dec(uint8_t const * const p_buf,
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uint32_t packet_len,
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uint32_t * const p_result_code);
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/**@brief Transmit an L2CAP packet.
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*
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* @note It is important to note that a call to this function will <b>consume an application buffer</b>, and will therefore
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* generate a @ref BLE_EVT_TX_COMPLETE event when the packet has been transmitted.
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* See the documentation of @ref sd_ble_tx_packet_count_get for more details.
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*
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* @param[in] conn_handle Connection handle.
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* @param[in] p_l2cap_header Pointer to a packet header containing length and CID.
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* @param[in] p_data Pointer to the data to be transmitted.
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* @param[in] p_buf Pointer to beginning of command response packet.
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* @param[in,out] p_buf_len\ c in: Size of \p p_buf buffer.
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* \c out: Length of encoded command packet.
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*
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* @retval NRF_SUCCESS Successfully queued an L2CAP packet for transmission.
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* @retval NRF_ERROR_INVALID_ADDR Invalid pointer supplied.
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* @retval NRF_ERROR_INVALID_PARAM Invalid parameter(s) supplied, CIDs must be registered beforehand with @ref sd_ble_l2cap_cid_register.
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* @retval NRF_ERROR_NOT_FOUND CID not found.
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* @retval NRF_ERROR_NO_MEM Not enough memory to complete operation.
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* @retval NRF_ERROR_DATA_SIZE Invalid data size(s) supplied, see @ref BLE_L2CAP_MTU_DEF.
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*/
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uint32_t ble_l2cap_tx_req_enc(uint16_t conn_handle,
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ble_l2cap_header_t const * const p_l2cap_header,
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uint8_t const * const p_data,
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uint8_t * const p_buf,
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uint32_t * const p_buf_len);
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/**
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* @brief Decodes response to @ref sd_ble_l2cap_tx command.
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*
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* @sa @ref ble_l2cap_tx_req_enc for command request encoder.
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*
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* @param[in] p_buf Pointer to beginning of command response packet.
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* @param[in] packet_len Length (in bytes) of response packet.
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* @param[out] p_result_code Command result code.
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*
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* @retval NRF_SUCCESS Decoding success.
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* @retval NRF_ERROR_NULL Decoding failure. NULL pointer supplied.
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* @retval NRF_ERROR_INVALID_LENGTH Decoding failure. Incorrect buffer length.
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* @retval NRF_ERROR_INVALID_DATA Decoding failure. Decoded operation code does not match
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* expected operation code.
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*/
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uint32_t ble_l2cap_tx_rsp_dec(uint8_t const * const p_buf,
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uint32_t packet_len,
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uint32_t * const p_result_code);
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#endif
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#if NRF_SD_BLE_API_VERSION >= 5
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uint32_t ble_l2cap_ch_setup_req_enc(uint16_t conn_handle,
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uint16_t * p_local_cid,
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ble_l2cap_ch_setup_params_t const *p_params,
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uint8_t * const p_buf,
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uint32_t * const p_buf_len);
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uint32_t ble_l2cap_ch_setup_rsp_dec(uint8_t const * const p_buf,
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uint32_t packet_len,
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uint16_t * p_local_cid,
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uint32_t * const p_result_code);
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uint32_t ble_l2cap_ch_release_req_enc(uint16_t conn_handle,
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uint16_t local_cid,
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uint8_t * const p_buf,
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uint32_t * const p_buf_len);
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uint32_t ble_l2cap_ch_release_rsp_dec(uint8_t const * const p_buf,
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uint32_t packet_len,
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uint32_t * const p_result_code);
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uint32_t ble_l2cap_ch_rx_req_enc(uint16_t conn_handle,
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uint16_t local_cid,
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ble_data_t const *p_sdu_buf,
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uint8_t * const p_buf,
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uint32_t * const p_buf_len);
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uint32_t ble_l2cap_ch_rx_rsp_dec(uint8_t const * const p_buf,
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uint32_t packet_len,
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uint32_t * const p_result_code);
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uint32_t ble_l2cap_ch_tx_req_enc(uint16_t conn_handle,
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uint16_t local_cid,
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ble_data_t const *p_sdu_buf,
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uint8_t * const p_buf,
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uint32_t * const p_buf_len);
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uint32_t ble_l2cap_ch_tx_rsp_dec(uint8_t const * const p_buf,
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uint32_t packet_len,
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uint32_t * const p_result_code);
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uint32_t ble_l2cap_ch_flow_control_req_enc(uint16_t conn_handle,
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uint16_t local_cid,
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uint16_t credits,
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uint16_t *p_credits,
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uint8_t * const p_buf,
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uint32_t * const p_buf_len);
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uint32_t ble_l2cap_ch_flow_control_rsp_dec(uint8_t const * const p_buf,
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uint32_t packet_len,
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uint16_t * p_credits,
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uint32_t * const p_result_code);
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#endif //NRF_SD_BLE_API_VERSION >= 5
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#ifdef __cplusplus
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}
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#endif
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#endif //BLE_L2CAP_APP_H__
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/**
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@}
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*/
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