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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 "sdk_common.h" #if NRF_MODULE_ENABLED(BLE_IAS) #include "ble_ias.h" #include #include "ble_srv_common.h" #define NRF_LOG_MODULE_NAME ble_ias #if BLE_IAS_CONFIG_LOG_ENABLED #define NRF_LOG_LEVEL BLE_IAS_CONFIG_LOG_LEVEL #define NRF_LOG_INFO_COLOR BLE_IAS_CONFIG_INFO_COLOR #define NRF_LOG_DEBUG_COLOR BLE_IAS_CONFIG_DEBUG_COLOR #else // BLE_IAS_CONFIG_LOG_ENABLED #define NRF_LOG_LEVEL 0 #endif // BLE_IAS_CONFIG_LOG_ENABLED #include "nrf_log.h" NRF_LOG_MODULE_REGISTER(); #define INITIAL_ALERT_LEVEL BLE_CHAR_ALERT_LEVEL_NO_ALERT /**@brief Function for handling the Connect event. * * @param[in] p_ias Immediate Alert Service structure. * @param[in] p_ble_evt Event received from the BLE stack. */ static void on_connect(ble_ias_t * p_ias, ble_evt_t const * p_ble_evt) { ret_code_t err_code; ble_ias_client_context_t * p_client = NULL; err_code = blcm_link_ctx_get(p_ias->p_link_ctx_storage, p_ble_evt->evt.gap_evt.conn_handle, (void *) &p_client); if (err_code != NRF_SUCCESS) { NRF_LOG_ERROR("Link context for 0x%02X connection handle could not be fetched.", p_ble_evt->evt.gap_evt.conn_handle); } else { p_client->alert_level = INITIAL_ALERT_LEVEL; } } /**@brief Function for handling the Write event. * * @param[in] p_ias Immediate Alert Service structure. * @param[in] p_ble_evt Event received from the BLE stack. */ static void on_write(ble_ias_t * p_ias, 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_ias->alert_level_handles.value_handle) && (p_evt_write->len == 1)) { // Alert level written, call application event handler ret_code_t err_code; ble_ias_evt_t evt; ble_ias_client_context_t * p_client; err_code = blcm_link_ctx_get(p_ias->p_link_ctx_storage, p_ble_evt->evt.gatts_evt.conn_handle, (void *) &p_client); if (err_code != NRF_SUCCESS) { NRF_LOG_ERROR("Link context for 0x%02X connection handle could not be fetched.", p_ble_evt->evt.gatts_evt.conn_handle); } else { p_client->alert_level = p_evt_write->data[0]; } evt.evt_type = BLE_IAS_EVT_ALERT_LEVEL_UPDATED; evt.conn_handle = p_ble_evt->evt.gatts_evt.conn_handle; evt.p_link_ctx = p_client; p_ias->evt_handler(p_ias, &evt); } } void ble_ias_on_ble_evt(ble_evt_t const * p_ble_evt, void * p_context) { ble_ias_t * p_ias = (ble_ias_t *)p_context; switch (p_ble_evt->header.evt_id) { case BLE_GAP_EVT_CONNECTED: on_connect(p_ias, p_ble_evt); break; case BLE_GATTS_EVT_WRITE: on_write(p_ias, p_ble_evt); break; default: // No implementation needed. break; } } /**@brief Function for adding Alert Level characteristics. * * @param[in] p_ias Immediate Alert Service structure. * @param[in] p_ias_init Information needed to initialize the service. * * @return NRF_SUCCESS on success, otherwise an error code. */ static uint32_t alert_level_char_add(ble_ias_t * p_ias) { 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 initial_alert_level; memset(&char_md, 0, sizeof(char_md)); char_md.char_props.write_wo_resp = 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_ALERT_LEVEL_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_ENC_NO_MITM(&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)); initial_alert_level = INITIAL_ALERT_LEVEL; attr_char_value.p_uuid = &ble_uuid; attr_char_value.p_attr_md = &attr_md; attr_char_value.init_len = sizeof (uint8_t); attr_char_value.init_offs = 0; attr_char_value.max_len = sizeof (uint8_t); attr_char_value.p_value = &initial_alert_level; return sd_ble_gatts_characteristic_add(p_ias->service_handle, &char_md, &attr_char_value, &p_ias->alert_level_handles); } uint32_t ble_ias_init(ble_ias_t * p_ias, const ble_ias_init_t * p_ias_init) { uint32_t err_code; ble_uuid_t ble_uuid; // Initialize service structure if (p_ias_init->evt_handler == NULL) { return NRF_ERROR_INVALID_PARAM; } p_ias->evt_handler = p_ias_init->evt_handler; // Add service BLE_UUID_BLE_ASSIGN(ble_uuid, BLE_UUID_IMMEDIATE_ALERT_SERVICE); err_code = sd_ble_gatts_service_add(BLE_GATTS_SRVC_TYPE_PRIMARY, &ble_uuid, &p_ias->service_handle); VERIFY_SUCCESS(err_code); // Add alert level characteristic err_code = alert_level_char_add(p_ias); VERIFY_SUCCESS(err_code); return err_code; } uint32_t ble_ias_alert_level_get(ble_ias_t * p_ias, uint16_t conn_handle, uint8_t * p_alert_level) { ret_code_t err_code; ble_ias_client_context_t * p_client; err_code = blcm_link_ctx_get(p_ias->p_link_ctx_storage, conn_handle, (void *) &p_client); VERIFY_SUCCESS(err_code); *p_alert_level = p_client->alert_level; return NRF_SUCCESS; } #endif // NRF_MODULE_ENABLED(BLE_IAS)