diff options
Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/ble_cscs/ble_cscs.c')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/ble_cscs/ble_cscs.c | 489 |
1 files changed, 489 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/ble_cscs/ble_cscs.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/ble_cscs/ble_cscs.c new file mode 100644 index 0000000..6e45d0f --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/ble_cscs/ble_cscs.c @@ -0,0 +1,489 @@ +/** + * Copyright (c) 2012 - 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. + * + */ +/* Attention! + * To maintain compliance with Nordic Semiconductor ASA's Bluetooth profile + * qualification listings, this section of source code must not be modified. + */ + +#include "ble_cscs.h" +#include <string.h> +#include "nordic_common.h" +#include "ble.h" +#include "ble_err.h" +#include "ble_srv_common.h" +#include "app_util.h" + +#define OPCODE_LENGTH 1 /**< Length of opcode inside Cycling Speed and Cadence Measurement packet. */ +#define HANDLE_LENGTH 2 /**< Length of handle inside Cycling Speed and Cadence Measurement packet. */ +#define MAX_CSCM_LEN (BLE_GATT_ATT_MTU_DEFAULT - OPCODE_LENGTH - HANDLE_LENGTH) /**< Maximum size of a transmitted Cycling Speed and Cadence Measurement. */ + +// Cycling Speed and Cadence Measurement flag bits +#define CSC_MEAS_FLAG_MASK_WHEEL_REV_DATA_PRESENT (0x01 << 0) /**< Wheel revolution data present flag bit. */ +#define CSC_MEAS_FLAG_MASK_CRANK_REV_DATA_PRESENT (0x01 << 1) /**< Crank revolution data present flag bit. */ + + +/**@brief Function for handling the Connect event. + * + * @param[in] p_cscs Cycling Speed and Cadence Service structure. + * @param[in] p_ble_evt Event received from the BLE stack. + */ +static void on_connect(ble_cscs_t * p_cscs, ble_evt_t const * p_ble_evt) +{ + p_cscs->conn_handle = p_ble_evt->evt.gap_evt.conn_handle; +} + + +/**@brief Function for handling the Disconnect event. + * + * @param[in] p_cscs Cycling Speed and Cadence Service structure. + * @param[in] p_ble_evt Event received from the BLE stack. + */ +static void on_disconnect(ble_cscs_t * p_cscs, ble_evt_t const * p_ble_evt) +{ + UNUSED_PARAMETER(p_ble_evt); + p_cscs->conn_handle = BLE_CONN_HANDLE_INVALID; +} + + +/**@brief Function for handling write events to the CSCS Measurement characteristic. + * + * @param[in] p_cscs Cycling Speed and Cadence Service structure. + * @param[in] p_evt_write Write event received from the BLE stack. + */ +static void on_meas_cccd_write(ble_cscs_t * p_cscs, ble_gatts_evt_write_t const * p_evt_write) +{ + if (p_evt_write->len == 2) + { + // CCCD written, update notification state + if (p_cscs->evt_handler != NULL) + { + ble_cscs_evt_t evt; + + if (ble_srv_is_notification_enabled(p_evt_write->data)) + { + evt.evt_type = BLE_CSCS_EVT_NOTIFICATION_ENABLED; + } + else + { + evt.evt_type = BLE_CSCS_EVT_NOTIFICATION_DISABLED; + } + + p_cscs->evt_handler(p_cscs, &evt); + } + } +} + + +/**@brief Function for handling the Write event. + * + * @param[in] p_cscs Cycling Speed and Cadence Service structure. + * @param[in] p_ble_evt Event received from the BLE stack. + */ +static void on_write(ble_cscs_t * p_cscs, ble_evt_t const * p_ble_evt) +{ + ble_gatts_evt_write_t const * p_evt_write = &p_ble_evt->evt.gatts_evt.params.write; + + if (p_evt_write->handle == p_cscs->meas_handles.cccd_handle) + { + on_meas_cccd_write(p_cscs, p_evt_write); + } +} + + +void ble_cscs_on_ble_evt(ble_evt_t const * p_ble_evt, void * p_context) +{ + ble_cscs_t * p_cscs = (ble_cscs_t *)p_context; + + if (p_cscs == NULL || p_ble_evt == NULL) + { + return; + } + + + ble_sc_ctrlpt_on_ble_evt(&(p_cscs->ctrl_pt), p_ble_evt); + + switch (p_ble_evt->header.evt_id) + { + case BLE_GAP_EVT_CONNECTED: + on_connect(p_cscs, p_ble_evt); + break; + + case BLE_GAP_EVT_DISCONNECTED: + on_disconnect(p_cscs, p_ble_evt); + break; + + case BLE_GATTS_EVT_WRITE: + on_write(p_cscs, p_ble_evt); + break; + + default: + // No implementation needed. + break; + } +} + + +/**@brief Function for encoding a CSCS Measurement. + * + * @param[in] p_cscs Cycling Speed and Cadence Service structure. + * @param[in] p_csc_measurement Measurement to be encoded. + * @param[out] p_encoded_buffer Buffer where the encoded data will be written. + * + * @return Size of encoded data. + */ +static uint8_t csc_measurement_encode(ble_cscs_t * p_cscs, + ble_cscs_meas_t * p_csc_measurement, + uint8_t * p_encoded_buffer) +{ + uint8_t flags = 0; + uint8_t len = 1; + + // Cumulative Wheel Revolutions and Last Wheel Event Time Fields + if (p_cscs->feature & BLE_CSCS_FEATURE_WHEEL_REV_BIT) + { + if (p_csc_measurement->is_wheel_rev_data_present) + { + flags |= CSC_MEAS_FLAG_MASK_WHEEL_REV_DATA_PRESENT; + len += uint32_encode(p_csc_measurement->cumulative_wheel_revs, &p_encoded_buffer[len]); + len += uint16_encode(p_csc_measurement->last_wheel_event_time, &p_encoded_buffer[len]); + } + } + + // Cumulative Crank Revolutions and Last Crank Event Time Fields + if (p_cscs->feature & BLE_CSCS_FEATURE_CRANK_REV_BIT) + { + if (p_csc_measurement->is_crank_rev_data_present) + { + flags |= CSC_MEAS_FLAG_MASK_CRANK_REV_DATA_PRESENT; + len += uint16_encode(p_csc_measurement->cumulative_crank_revs, &p_encoded_buffer[len]); + len += uint16_encode(p_csc_measurement->last_crank_event_time, &p_encoded_buffer[len]); + } + } + + // Flags Field + p_encoded_buffer[0] = flags; + + return len; +} + + +/**@brief Function for adding CSC Measurement characteristics. + * + * @param[in] p_cscs Cycling Speed and Cadence Service structure. + * @param[in] p_cscs_init Information needed to initialize the service. + * + * @return NRF_SUCCESS on success, otherwise an error code. + */ +static uint32_t csc_measurement_char_add(ble_cscs_t * p_cscs, ble_cscs_init_t const * p_cscs_init) +{ + ble_gatts_char_md_t char_md; + ble_gatts_attr_md_t cccd_md; + ble_gatts_attr_t attr_char_value; + ble_uuid_t ble_uuid; + ble_gatts_attr_md_t attr_md; + ble_cscs_meas_t initial_scm = {0}; + uint8_t encoded_scm[MAX_CSCM_LEN]; + memset(&cccd_md, 0, sizeof(cccd_md)); + + BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.read_perm); + cccd_md.write_perm = p_cscs_init->csc_meas_attr_md.cccd_write_perm; + cccd_md.vloc = BLE_GATTS_VLOC_STACK; + + memset(&char_md, 0, sizeof(char_md)); + + char_md.char_props.notify = 1; + char_md.p_char_user_desc = NULL; + char_md.p_char_pf = NULL; + char_md.p_user_desc_md = NULL; + char_md.p_cccd_md = &cccd_md; + char_md.p_sccd_md = NULL; + + BLE_UUID_BLE_ASSIGN(ble_uuid, BLE_UUID_CSC_MEASUREMENT_CHAR); + + memset(&attr_md, 0, sizeof(attr_md)); + + BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&attr_md.read_perm ); + + BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&attr_md.write_perm); + attr_md.vloc = BLE_GATTS_VLOC_STACK; + attr_md.rd_auth = 0; + attr_md.wr_auth = 0; + attr_md.vlen = 1; + + memset(&attr_char_value, 0, sizeof(attr_char_value)); + + attr_char_value.p_uuid = &ble_uuid; + attr_char_value.p_attr_md = &attr_md; + attr_char_value.init_len = csc_measurement_encode(p_cscs, &initial_scm, encoded_scm); + attr_char_value.init_offs = 0; + attr_char_value.max_len = MAX_CSCM_LEN; + attr_char_value.p_value = encoded_scm; + + return sd_ble_gatts_characteristic_add(p_cscs->service_handle, + &char_md, + &attr_char_value, + &p_cscs->meas_handles); +} + + +/**@brief Function for adding CSC Feature characteristics. + * + * @param[in] p_cscs Cycling Speed and Cadence Service structure. + * @param[in] p_cscs_init Information needed to initialize the service. + * + * @return NRF_SUCCESS on success, otherwise an error code. + */ +static uint32_t csc_feature_char_add(ble_cscs_t * p_cscs, ble_cscs_init_t const * p_cscs_init) +{ + ble_gatts_char_md_t char_md; + ble_gatts_attr_t attr_char_value; + ble_uuid_t ble_uuid; + ble_gatts_attr_md_t attr_md; + uint8_t init_value_encoded[2]; + uint8_t init_value_len; + + memset(&char_md, 0, sizeof(char_md)); + + char_md.char_props.read = 1; + char_md.p_char_user_desc = NULL; + char_md.p_char_pf = NULL; + char_md.p_user_desc_md = NULL; + char_md.p_cccd_md = NULL; + char_md.p_sccd_md = NULL; + + BLE_UUID_BLE_ASSIGN(ble_uuid, BLE_UUID_CSC_FEATURE_CHAR); + + memset(&attr_md, 0, sizeof(attr_md)); + + attr_md.read_perm = p_cscs_init->csc_feature_attr_md.read_perm; + + BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&attr_md.write_perm); + attr_md.vloc = BLE_GATTS_VLOC_STACK; + attr_md.rd_auth = 0; + attr_md.wr_auth = 0; + attr_md.vlen = 0; + + memset(&attr_char_value, 0, sizeof(attr_char_value)); + + init_value_len = uint16_encode(p_cscs_init->feature, &init_value_encoded[0]); + + attr_char_value.p_uuid = &ble_uuid; + attr_char_value.p_attr_md = &attr_md; + attr_char_value.init_len = init_value_len; + attr_char_value.init_offs = 0; + attr_char_value.max_len = init_value_len; + attr_char_value.p_value = init_value_encoded; + + return sd_ble_gatts_characteristic_add(p_cscs->service_handle, + &char_md, + &attr_char_value, + &p_cscs->feature_handles); +} + + +/**@brief Function for adding CSC Sensor Location characteristic. + * + * @param[in] p_cscs Cycling Speed and Cadence Service structure. + * @param[in] p_cscs_init Information needed to initialize the service. + * + * @return NRF_SUCCESS on success, otherwise an error code. + */ +static uint32_t csc_sensor_loc_char_add(ble_cscs_t * p_cscs, ble_cscs_init_t const * p_cscs_init) +{ + ble_gatts_char_md_t char_md; + ble_gatts_attr_t attr_char_value; + ble_uuid_t ble_uuid; + ble_gatts_attr_md_t attr_md; + uint8_t init_value_len; + uint8_t encoded_init_value[1]; + + memset(&char_md, 0, sizeof(char_md)); + + char_md.char_props.read = 1; + char_md.p_char_user_desc = NULL; + char_md.p_char_pf = NULL; + char_md.p_user_desc_md = NULL; + char_md.p_cccd_md = NULL; + char_md.p_sccd_md = NULL; + + BLE_UUID_BLE_ASSIGN(ble_uuid, BLE_UUID_SENSOR_LOCATION_CHAR); + + memset(&attr_md, 0, sizeof(attr_md)); + + attr_md.read_perm = p_cscs_init->csc_sensor_loc_attr_md.read_perm; + BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&attr_md.write_perm); + attr_md.vloc = BLE_GATTS_VLOC_STACK; + attr_md.rd_auth = 0; + attr_md.wr_auth = 0; + attr_md.vlen = 0; + + memset(&attr_char_value, 0, sizeof(attr_char_value)); + + init_value_len = sizeof(uint8_t); + if (p_cscs_init->sensor_location != NULL) + { + encoded_init_value[0] = *p_cscs_init->sensor_location; + } + + attr_char_value.p_uuid = &ble_uuid; + attr_char_value.p_attr_md = &attr_md; + attr_char_value.init_len = init_value_len; + attr_char_value.init_offs = 0; + attr_char_value.max_len = init_value_len; + attr_char_value.p_value = encoded_init_value; + + return sd_ble_gatts_characteristic_add(p_cscs->service_handle, + &char_md, + &attr_char_value, + &p_cscs->sensor_loc_handles); +} + + +uint32_t ble_cscs_init(ble_cscs_t * p_cscs, ble_cscs_init_t const * p_cscs_init) +{ + if (p_cscs == NULL || p_cscs_init == NULL) + { + return NRF_ERROR_NULL; + } + + uint32_t err_code; + ble_uuid_t ble_uuid; + ble_cs_ctrlpt_init_t sc_ctrlpt_init; + + // Initialize service structure + p_cscs->evt_handler = p_cscs_init->evt_handler; + p_cscs->conn_handle = BLE_CONN_HANDLE_INVALID; + p_cscs->feature = p_cscs_init->feature; + + // Add service + BLE_UUID_BLE_ASSIGN(ble_uuid, BLE_UUID_CYCLING_SPEED_AND_CADENCE); + + err_code = sd_ble_gatts_service_add(BLE_GATTS_SRVC_TYPE_PRIMARY, + &ble_uuid, + &p_cscs->service_handle); + + if (err_code != NRF_SUCCESS) + { + return err_code; + } + + // Add cycling speed and cadence measurement characteristic + err_code = csc_measurement_char_add(p_cscs, p_cscs_init); + + if (err_code != NRF_SUCCESS) + { + return err_code; + } + + // Add cycling speed and cadence feature characteristic + err_code = csc_feature_char_add(p_cscs, p_cscs_init); + + if (err_code != NRF_SUCCESS) + { + return err_code; + } + + // Add Sensor Location characteristic (optional) + if (p_cscs_init->sensor_location != NULL) + { + err_code = csc_sensor_loc_char_add(p_cscs, p_cscs_init); + + if (err_code != NRF_SUCCESS) + { + return err_code; + } + } + + + // Add speed and cadence control point characteristic + sc_ctrlpt_init.error_handler = p_cscs_init->error_handler; + sc_ctrlpt_init.size_list_supported_locations = p_cscs_init->size_list_supported_locations; + sc_ctrlpt_init.supported_functions = p_cscs_init->ctrplt_supported_functions; + sc_ctrlpt_init.evt_handler = p_cscs_init->ctrlpt_evt_handler; + sc_ctrlpt_init.list_supported_locations = p_cscs_init->list_supported_locations; + sc_ctrlpt_init.sc_ctrlpt_attr_md = p_cscs_init->csc_ctrlpt_attr_md; + sc_ctrlpt_init.sensor_location_handle = p_cscs->sensor_loc_handles.value_handle; + sc_ctrlpt_init.service_handle = p_cscs->service_handle; + + return ble_sc_ctrlpt_init(&p_cscs->ctrl_pt, &sc_ctrlpt_init); +} + + +uint32_t ble_cscs_measurement_send(ble_cscs_t * p_cscs, ble_cscs_meas_t * p_measurement) +{ + if (p_cscs == NULL || p_measurement == NULL) + { + return NRF_ERROR_NULL; + } + + uint32_t err_code; + + // Send value if connected and notifying + if (p_cscs->conn_handle != BLE_CONN_HANDLE_INVALID) + { + uint8_t encoded_csc_meas[MAX_CSCM_LEN]; + uint16_t len; + uint16_t hvx_len; + ble_gatts_hvx_params_t hvx_params; + + len = csc_measurement_encode(p_cscs, p_measurement, encoded_csc_meas); + hvx_len = len; + + memset(&hvx_params, 0, sizeof(hvx_params)); + + hvx_params.handle = p_cscs->meas_handles.value_handle; + hvx_params.type = BLE_GATT_HVX_NOTIFICATION; + hvx_params.offset = 0; + hvx_params.p_len = &hvx_len; + hvx_params.p_data = encoded_csc_meas; + + err_code = sd_ble_gatts_hvx(p_cscs->conn_handle, &hvx_params); + if ((err_code == NRF_SUCCESS) && (hvx_len != len)) + { + err_code = NRF_ERROR_DATA_SIZE; + } + } + else + { + err_code = NRF_ERROR_INVALID_STATE; + } + + return err_code; +} |