From 3061ecca3d0fdfb87dabbf5f63c9e06c2a30f53a Mon Sep 17 00:00:00 2001 From: Trygve Laugstøl Date: Thu, 23 Aug 2018 17:08:59 +0200 Subject: o Initial import. --- .../experimental_ble_ots/ble_ots_l2cap.c | 437 +++++++++++++++++++++ 1 file changed, 437 insertions(+) create mode 100644 thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/experimental_ble_ots/ble_ots_l2cap.c (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/experimental_ble_ots/ble_ots_l2cap.c') diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/experimental_ble_ots/ble_ots_l2cap.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/experimental_ble_ots/ble_ots_l2cap.c new file mode 100644 index 0000000..b51e086 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/experimental_ble_ots/ble_ots_l2cap.c @@ -0,0 +1,437 @@ +/** + * Copyright (c) 2017 - 2018, 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_ots_l2cap.h" + +#include +#include "ble_l2cap.h" + +#include "ble_ots.h" +#include "ble_ots_oacp.h" + +#define NRF_LOG_MODULE_NAME ble_ots_l2cap +#include "nrf_log.h" +NRF_LOG_MODULE_REGISTER(); + +#define SDU_SIZE 256 + + +static uint8_t data[SDU_SIZE]; +static ble_data_t m_sdu_buf = +{ + .p_data = data, + .len = SDU_SIZE +}; + +bool ble_ots_l2cap_is_channel_available(ble_ots_l2cap_t * p_ots_l2cap) +{ + return p_ots_l2cap->state == CONNECTED; +} + +uint32_t ble_ots_l2cap_abort_transmission(ble_ots_l2cap_t * p_ots_l2cap) +{ + if (p_ots_l2cap == NULL) + { + return NRF_ERROR_NULL; + } + return NRF_ERROR_INVALID_PARAM; +} + +uint32_t ble_ots_l2cap_init(ble_ots_l2cap_t * p_ots_l2cap, ble_ots_l2cap_init_t * p_ots_l2cap_init) +{ + if (p_ots_l2cap == NULL || p_ots_l2cap_init == NULL) + { + return NRF_ERROR_NULL; + } + if (p_ots_l2cap_init->p_transfer_buffer == NULL || p_ots_l2cap_init->buffer_len == 0) + { + return NRF_ERROR_INVALID_PARAM; + } + if (p_ots_l2cap_init->p_ots_oacp == NULL) + { + return NRF_ERROR_INVALID_PARAM; + } + if (p_ots_l2cap_init->evt_handler == NULL) + { + return NRF_ERROR_INVALID_PARAM; + } + + memset(p_ots_l2cap, 0, sizeof(ble_ots_l2cap_t)); + + p_ots_l2cap->local_cid = BLE_OTS_INVALID_CID; + + p_ots_l2cap->p_ots_oacp = p_ots_l2cap_init->p_ots_oacp; + p_ots_l2cap->evt_handler = p_ots_l2cap_init->evt_handler; + p_ots_l2cap->rx_params.sdu_buf.len = m_sdu_buf.len; + p_ots_l2cap->rx_params.sdu_buf.p_data = m_sdu_buf.p_data; + + p_ots_l2cap->state = NOT_CONNECTED; + + return NRF_SUCCESS; +} + + + +/**@brief This function resumes sending data after an interrupt in the transfer. + * + * @param[in] p_ots_l2cap Object Transfer Service structure. + */ +static void ble_ots_l2cap_resume_send(ble_ots_l2cap_t * p_ots_l2cap) +{ + uint16_t transmit_size; + ble_data_t data_buf; + + transmit_size = MIN(p_ots_l2cap->tx_params.tx_mtu, p_ots_l2cap->remaining_bytes); + + data_buf.p_data = &p_ots_l2cap->tx_transfer_buffer.p_data[p_ots_l2cap->transfer_len - p_ots_l2cap->remaining_bytes]; + data_buf.len = transmit_size; + + + uint32_t err_code = sd_ble_l2cap_ch_tx(p_ots_l2cap->p_ots_oacp->p_ots->conn_handle, + p_ots_l2cap->local_cid, + &data_buf); + + if (err_code != NRF_SUCCESS && err_code != NRF_ERROR_BUSY) + { + if (p_ots_l2cap->p_ots_oacp->p_ots->error_handler != NULL) + { + p_ots_l2cap->p_ots_oacp->p_ots->error_handler(err_code); + return; + } + } +} + + +uint32_t ble_ots_l2cap_start_send(ble_ots_l2cap_t * p_ots_l2cap, uint8_t * p_data, uint16_t data_len) +{ + if (p_ots_l2cap == NULL) + { + return NRF_ERROR_NULL; + } + if (p_data == NULL) + { + return NRF_ERROR_NULL; + } + if (data_len == 0) + { + return NRF_ERROR_INVALID_LENGTH; + } + if (p_ots_l2cap->local_cid == BLE_L2CAP_CID_INVALID) + { + return NRF_ERROR_INVALID_STATE; + } + if (p_ots_l2cap->state != CONNECTED) + { + return NRF_ERROR_INVALID_STATE; + } + + p_ots_l2cap->tx_transfer_buffer.p_data = p_data; + p_ots_l2cap->tx_transfer_buffer.len = data_len; + + p_ots_l2cap->remaining_bytes = data_len; + p_ots_l2cap->transfer_len = data_len; + + p_ots_l2cap->state = SENDING; + + ble_ots_l2cap_resume_send(p_ots_l2cap); + + return NRF_SUCCESS; +} + +uint32_t ble_ots_l2cap_start_recv(ble_ots_l2cap_t * p_ots_l2cap, uint16_t len) +{ + uint32_t err_code; + + if (p_ots_l2cap == NULL) + { + return NRF_ERROR_NULL; + } + if (p_ots_l2cap->state != CONNECTED) + { + return NRF_ERROR_INVALID_STATE; + } + if (p_ots_l2cap->local_cid == BLE_L2CAP_CID_INVALID) + { + return NRF_ERROR_INVALID_STATE; + } + p_ots_l2cap->transfered_bytes = 0; + p_ots_l2cap->remaining_bytes = len; + p_ots_l2cap->transfer_len = len; + + err_code = sd_ble_l2cap_ch_rx(p_ots_l2cap->p_ots_oacp->p_ots->conn_handle, + p_ots_l2cap->local_cid, + &p_ots_l2cap->rx_params.sdu_buf); + if (err_code == NRF_SUCCESS) + { + p_ots_l2cap->state = RECEIVING; + } + + return err_code; +} + +/**@brief This function is called on a channel setup request. It responds with the connection parameters. + * @param[in] p_ots_l2cap Object transfer service l2cap module structure. + * @param[in] p_ble_evt Event received from the BLE stack. + */ +static inline void on_l2cap_ch_setup_request(ble_ots_l2cap_t * p_ots_l2cap, ble_evt_t const * p_ble_evt) +{ + uint32_t err_code; + ble_l2cap_ch_setup_params_t ch_setup_params = {{0}}; + + if (p_ble_evt->evt.l2cap_evt.params.ch_setup_request.le_psm != BLE_OTS_PSM) + { + ch_setup_params.status = BLE_L2CAP_CH_STATUS_CODE_LE_PSM_NOT_SUPPORTED; + NRF_LOG_WARNING("l2cap setup request for PSM 0x%x, rejecting since OTS PSM is 0x%x", + p_ble_evt->evt.l2cap_evt.params.ch_setup_request.le_psm, + BLE_L2CAP_CH_STATUS_CODE_LE_PSM_NOT_SUPPORTED); + } + + else + { + ch_setup_params.status = BLE_L2CAP_CH_STATUS_CODE_SUCCESS; + + ch_setup_params.rx_params.rx_mps = p_ots_l2cap->conn_mps; + if (ch_setup_params.rx_params.rx_mps < BLE_L2CAP_MPS_MIN) + { + ch_setup_params.rx_params.rx_mps = BLE_L2CAP_MPS_MIN; + } + ch_setup_params.rx_params.rx_mtu = p_ots_l2cap->conn_mtu; + if (ch_setup_params.rx_params.rx_mtu < BLE_L2CAP_MTU_MIN) + { + ch_setup_params.rx_params.rx_mtu = BLE_L2CAP_MTU_MIN; + } + ch_setup_params.rx_params.sdu_buf.p_data = NULL; + } + + p_ots_l2cap->local_cid = p_ble_evt->evt.l2cap_evt.local_cid; + + err_code = sd_ble_l2cap_ch_setup(p_ots_l2cap->p_ots_oacp->p_ots->conn_handle, + &p_ots_l2cap->local_cid, + &ch_setup_params); + if (err_code != NRF_SUCCESS) + { + if (p_ots_l2cap->p_ots_oacp->p_ots->error_handler != NULL) + { + p_ots_l2cap->p_ots_oacp->p_ots->error_handler(err_code); + } + + } + NRF_LOG_INFO("Accepted L2CAP Channel"); +} + + +/**@brief This function is called on a channel setup request. The parameters are stored. Events are forwarded. + * + * @param[in] p_ots_l2cap Object transfer service l2cap module structure. + * @param[in] p_ble_evt Event received from the BLE stack. + */ +static inline void on_l2cap_ch_setup(ble_ots_l2cap_t * p_ots_l2cap, ble_evt_t const * p_ble_evt) +{ + p_ots_l2cap->local_cid = p_ble_evt->evt.l2cap_evt.local_cid; + p_ots_l2cap->tx_params.credits = p_ble_evt->evt.l2cap_evt.params.ch_setup.tx_params.credits; + p_ots_l2cap->tx_params.tx_mps = p_ble_evt->evt.l2cap_evt.params.ch_setup.tx_params.tx_mps; + p_ots_l2cap->tx_params.tx_mtu = p_ble_evt->evt.l2cap_evt.params.ch_setup.tx_params.tx_mtu; + ble_ots_l2cap_evt_t evt; + + evt.type = BLE_OTS_L2CAP_EVT_CH_CONNECTED; + + p_ots_l2cap->state = CONNECTED; + p_ots_l2cap->evt_handler(p_ots_l2cap, &evt); +} + + +/**@brief Function for handling the BLE_L2CAP_EVT_CH_RELEASED event. + * + * @param[in] p_ots_l2cap Object transfer service l2cap module structure. + * @param[in] p_ble_evt Pointer to the event received from BLE stack. + */ +static inline void on_l2cap_ch_released(ble_ots_l2cap_t * p_ots_l2cap, ble_evt_t const * p_ble_evt) +{ + if(p_ots_l2cap->local_cid != p_ble_evt->evt.l2cap_evt.local_cid) + { + return; + } + ble_ots_l2cap_evt_t evt; + + evt.type = BLE_OTS_L2CAP_EVT_CH_DISCONNECTED; + + p_ots_l2cap->evt_handler(p_ots_l2cap, &evt); + + p_ots_l2cap->state = NOT_CONNECTED; + + p_ots_l2cap->local_cid = BLE_OTS_INVALID_CID; + +} + + +/**@brief This function ois called tx is completet. It continues to send if necessary. + * + * @param[in] p_ots_l2cap Object transfer service l2cap module structure. + * @param[in] p_ble_evt Pointer to the event received from BLE stack. + */ +static void on_tx_complete(ble_ots_l2cap_t * p_ots_l2cap, ble_evt_t const * p_ble_evt) +{ + if(p_ots_l2cap->local_cid != p_ble_evt->evt.l2cap_evt.local_cid) + { + return; + } + + p_ots_l2cap->remaining_bytes -= p_ble_evt->evt.l2cap_evt.params.tx.sdu_buf.len; + + if (p_ots_l2cap->remaining_bytes == 0) + { + ble_ots_l2cap_evt_t evt; + + evt.type = BLE_OTS_L2CAP_EVT_SEND_COMPLETE; + evt.param.len = p_ots_l2cap->transfer_len; + evt.param.p_data = p_ots_l2cap->tx_transfer_buffer.p_data; + evt.param.len = p_ots_l2cap->tx_transfer_buffer.len; + + p_ots_l2cap->evt_handler(p_ots_l2cap, &evt); + + p_ots_l2cap->state = CONNECTED; + + p_ots_l2cap->transfer_len = 0; + } + else + { + ble_ots_l2cap_resume_send(p_ots_l2cap); + } +} + + +static void on_l2cap_ch_rx(ble_ots_l2cap_t * p_ots_l2cap, ble_evt_t const * p_ble_evt) +{ + if(p_ots_l2cap->local_cid != p_ble_evt->evt.l2cap_evt.local_cid) + { + return; + } + + ble_ots_l2cap_evt_t evt; + + memcpy(&p_ots_l2cap->p_ots_oacp->p_ots->p_current_object->data[p_ots_l2cap->transfered_bytes], + p_ble_evt->evt.l2cap_evt.params.rx.sdu_buf.p_data, + p_ble_evt->evt.l2cap_evt.params.rx.sdu_len); + NRF_LOG_DEBUG("Object buffer dump"); + NRF_LOG_HEXDUMP_DEBUG(p_ots_l2cap->rx_params.sdu_buf.p_data , p_ots_l2cap->rx_params.sdu_buf.len); + p_ots_l2cap->transfered_bytes += p_ble_evt->evt.l2cap_evt.params.rx.sdu_len; + p_ots_l2cap->remaining_bytes -= p_ble_evt->evt.l2cap_evt.params.rx.sdu_len; + NRF_LOG_INFO("Bytes remaining to receive: %i", p_ots_l2cap->remaining_bytes); + p_ots_l2cap->state = CONNECTED; + + p_ots_l2cap->transfer_len = 0; + + if(p_ots_l2cap->remaining_bytes <= 0) + { + evt.type = BLE_OTS_L2CAP_EVT_RECV_COMPLETE; + evt.param.len = p_ots_l2cap->rx_params.sdu_buf.len; + evt.param.p_data = p_ots_l2cap->rx_params.sdu_buf.p_data; + p_ots_l2cap->evt_handler(p_ots_l2cap, &evt); + } + else + { + ret_code_t err_code; + + ble_data_t sdu_buf; + sdu_buf.p_data = &p_ots_l2cap->rx_params.sdu_buf.p_data[p_ots_l2cap->transfered_bytes]; + sdu_buf.len = p_ots_l2cap->rx_params.sdu_buf.len; + + err_code = sd_ble_l2cap_ch_rx(p_ots_l2cap->p_ots_oacp->p_ots->conn_handle, + p_ots_l2cap->local_cid, + &sdu_buf); + if (err_code == NRF_SUCCESS) + { + p_ots_l2cap->state = RECEIVING; + } + else + { + p_ots_l2cap->state = CONNECTED; + } + } +} + + + +void ble_ots_l2cap_on_ble_evt(ble_ots_l2cap_t * p_ots_l2cap, ble_evt_t const * p_ble_evt) +{ + if ((p_ots_l2cap == NULL) || (p_ble_evt == NULL)) + { + return; + } + + switch (p_ble_evt->header.evt_id) + { + case BLE_L2CAP_EVT_CH_SETUP_REQUEST: + on_l2cap_ch_setup_request(p_ots_l2cap, p_ble_evt); + break; + + case BLE_L2CAP_EVT_CH_SETUP_REFUSED: + // This should not happen because the client should be the initiator. + if (p_ots_l2cap->p_ots_oacp->p_ots->error_handler != NULL) + { + p_ots_l2cap->p_ots_oacp->p_ots->error_handler(NRF_ERROR_INVALID_STATE); + } + break; + + case BLE_L2CAP_EVT_CH_SETUP: + on_l2cap_ch_setup(p_ots_l2cap, p_ble_evt); + break; + + case BLE_L2CAP_EVT_CH_RELEASED: + on_l2cap_ch_released(p_ots_l2cap, p_ble_evt); + break; + case BLE_L2CAP_EVT_CH_SDU_BUF_RELEASED: + break; + case BLE_L2CAP_EVT_CH_CREDIT: + break; + case BLE_L2CAP_EVT_CH_RX: + on_l2cap_ch_rx(p_ots_l2cap, p_ble_evt); + break; + + case BLE_L2CAP_EVT_CH_TX: + on_tx_complete(p_ots_l2cap, p_ble_evt); + break; + default: + // No implementation needed. + break; + } +} + + + -- cgit v1.2.3