/** * 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. * */ /** @file * * @{ * @ingroup ble_app_gzll_bluetooth_part */ #include "ble_app_gzll_hr.h" #include #include "nordic_common.h" #include "nrf.h" #include "app_error.h" #include "nrf_gpio.h" #include "ble.h" #include "ble_srv_common.h" #include "ble_advdata.h" #include "ble_bas.h" #include "ble_hrs.h" #include "ble_dis.h" #include "ble_conn_params.h" #include "sensorsim.h" #include "nrf_sdh.h" #include "nrf_sdh_ble.h" #include "nrf_ble_qwr.h" #include "app_timer.h" #include "ble_app_gzll_ui.h" #include "app_button.h" #include "ble_app_gzll_common.h" #include "nrf_sdm.h" #define IS_SRVC_CHANGED_CHARACT_PRESENT 0 /**< Include or not the service_changed characteristic. if not enabled, the server's database cannot be changed for the lifetime of the device*/ #define DEVICE_NAME "Nordic_BLE_GZL" /**< Name of device. Will be included in the advertising data. */ #define MANUFACTURER_NAME "NordicSemiconductor" /**< Manufacturer. Will be passed to Device Information Service. */ #define APP_BLE_OBSERVER_PRIO 3 /**< Application's BLE observer priority. You shouldn't need to modify this value. */ #define APP_BLE_CONN_CFG_TAG 1 /**< A tag for a Bluetooth stack configuration. */ #define APP_ADV_INTERVAL 40 /**< The advertising interval (in units of 0.625 ms. This value corresponds to 25 ms). */ #define APP_ADV_DURATION 18000 /**< The advertising duration (180 seconds) in units of 10 milliseconds. */ #define BATTERY_LEVEL_MEAS_INTERVAL APP_TIMER_TICKS(2000) /**< Battery level measurement interval (ticks). */ #define MIN_BATTERY_LEVEL 81 /**< Minimum battery level as returned by the simulated measurement function. */ #define MAX_BATTERY_LEVEL 100 /**< Maximum battery level as returned by the simulated measurement function. */ #define BATTERY_LEVEL_INCREMENT 1 /**< Value by which the battery level is incremented/decremented for each call to the simulated measurement function. */ #define HEART_RATE_MEAS_INTERVAL APP_TIMER_TICKS(1000) /**< Heart rate measurement interval (ticks). */ #define MIN_HEART_RATE 140 /**< Minimum heart rate as returned by the simulated measurement function. */ #define MAX_HEART_RATE 160 /**< Maximum heart rate as returned by the simulated measurement function. */ #define HEART_RATE_INCREMENT 1 /**< Value by which the heart rate is incremented/decremented for each call to the simulated measurement function. */ #define RR_INTERVAL_INTERVAL APP_TIMER_TICKS(300) /**< RR interval interval (ticks). */ #define MIN_RR_INTERVAL 100 /**< Minimum RR interval as returned by the simulated measurement function. */ #define MAX_RR_INTERVAL 500 /**< Maximum RR interval as returned by the simulated measurement function. */ #define RR_INTERVAL_INCREMENT 1 /**< Value by which the RR interval is incremented/decremented for each call to the simulated measurement function. */ #define SENSOR_CONTACT_DETECTED_INTERVAL APP_TIMER_TICKS(5000) /**< Sensor Contact Detected toggle interval (ticks). */ #define MIN_CONN_INTERVAL MSEC_TO_UNITS(500, UNIT_1_25_MS) /**< Minimum acceptable connection interval (0.5 seconds). */ #define MAX_CONN_INTERVAL MSEC_TO_UNITS(1000, UNIT_1_25_MS) /**< Maximum acceptable connection interval (1 second). */ #define SLAVE_LATENCY 0 /**< Slave latency. */ #define CONN_SUP_TIMEOUT MSEC_TO_UNITS(4000, UNIT_10_MS) /**< Connection supervisory timeout (4 seconds). */ #define FIRST_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(5000) /**< Time from initiating event (connect or start of notification) to first time sd_ble_gap_conn_param_update is called (5 seconds). */ #define NEXT_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(30000) /**< Time between each call to sd_ble_gap_conn_param_update after the first call (30 seconds). */ #define MAX_CONN_PARAMS_UPDATE_COUNT 3 /**< Number of attempts before giving up the connection parameter negotiation. */ #define SEC_PARAM_TIMEOUT 30 /**< Timeout for Pairing Request or Security Request (in seconds). */ #define SEC_PARAM_BOND 1 /**< Perform bonding. */ #define SEC_PARAM_MITM 0 /**< Man In The Middle protection not required. */ #define SEC_PARAM_IO_CAPABILITIES BLE_GAP_IO_CAPS_NONE /**< No I/O capabilities. */ #define SEC_PARAM_OOB 0 /**< Out Of Band data not available. */ #define SEC_PARAM_MIN_KEY_SIZE 7 /**< Minimum encryption key size. */ #define SEC_PARAM_MAX_KEY_SIZE 16 /**< Maximum encryption key size. */ NRF_BLE_QWR_DEF(m_qwr); /**< Context for the Queued Write module.*/ static ble_gap_sec_params_t m_sec_params; /**< Security requirements for this application. */ static ble_gap_adv_params_t m_adv_params; /**< Parameters to be passed to the stack when starting advertising. */ BLE_BAS_DEF(m_bas); /**< Structure used to identify the battery service. */ BLE_HRS_DEF(m_hrs); /**< Heart rate service instance. */ static bool m_rr_interval_enabled = true; /**< Flag for enabling and disabling the registration of new RR interval measurements (the purpose of disabling this is just to test sending HRM without RR interval data. */ static sensorsim_cfg_t m_battery_sim_cfg; /**< Battery Level sensor simulator configuration. */ static sensorsim_state_t m_battery_sim_state; /**< Battery Level sensor simulator state. */ static sensorsim_cfg_t m_heart_rate_sim_cfg; /**< Heart Rate sensor simulator configuration. */ static sensorsim_state_t m_heart_rate_sim_state; /**< Heart Rate sensor simulator state. */ static sensorsim_cfg_t m_rr_interval_sim_cfg; /**< RR Interval sensor simulator configuration. */ static sensorsim_state_t m_rr_interval_sim_state; /**< RR Interval sensor simulator state. */ static uint8_t m_adv_handle = BLE_GAP_ADV_SET_HANDLE_NOT_SET; /**< Advertising handle used to identify an advertising set. */ static uint8_t m_enc_advdata[BLE_GAP_ADV_SET_DATA_SIZE_MAX]; /**< Buffer for storing an encoded advertising set. */ /**@brief Struct that contains pointers to the encoded advertising data. */ static ble_gap_adv_data_t m_adv_data = { .adv_data = { .p_data = m_enc_advdata, .len = BLE_GAP_ADV_SET_DATA_SIZE_MAX }, .scan_rsp_data = { .p_data = NULL, .len = 0 } }; APP_TIMER_DEF(m_battery_timer_id); /**< Battery timer. */ APP_TIMER_DEF(m_heart_rate_timer_id); /**< Heart rate measurement timer. */ APP_TIMER_DEF(m_rr_interval_timer_id); /**< RR interval timer. */ APP_TIMER_DEF(m_sensor_contact_timer_id); /**< Sensor contact detected timer. */ /**@brief Function for performing a battery measurement and updating * the Battery Level characteristic in the Battery Service. */ static void battery_level_update(void) { uint32_t err_code; uint8_t battery_level; battery_level = (uint8_t)sensorsim_measure(&m_battery_sim_state, &m_battery_sim_cfg); err_code = ble_bas_battery_level_update(&m_bas, battery_level, BLE_CONN_HANDLE_ALL); if ((err_code != NRF_SUCCESS) && (err_code != NRF_ERROR_INVALID_STATE) && (err_code != NRF_ERROR_RESOURCES) && (err_code != BLE_ERROR_GATTS_SYS_ATTR_MISSING) ) { APP_ERROR_HANDLER(err_code); } } /**@brief Function for handling the Battery measurement timer timeout. * * @details This function will be called each time the battery level measurement timer expires. * * @param[in] p_context Pointer used for passing some arbitrary information (context) from the * app_start_timer() call to the timeout handler. */ static void battery_level_meas_timeout_handler(void * p_context) { UNUSED_PARAMETER(p_context); battery_level_update(); } /**@brief Function for handling the Heart rate measurement timer timeout. * * @details This function will be called each time the heart rate measurement timer expires. * It will exclude RR Interval data from every third measurement. * * @param[in] p_context Pointer used for passing some arbitrary information (context) from the * app_start_timer() call to the timeout handler. */ static void heart_rate_meas_timeout_handler(void * p_context) { static uint32_t cnt = 0; uint32_t err_code; uint16_t heart_rate; UNUSED_PARAMETER(p_context); heart_rate = (uint16_t)sensorsim_measure(&m_heart_rate_sim_state, &m_heart_rate_sim_cfg); cnt++; err_code = ble_hrs_heart_rate_measurement_send(&m_hrs, heart_rate); if ((err_code != NRF_SUCCESS) && (err_code != NRF_ERROR_INVALID_STATE) && (err_code != NRF_ERROR_RESOURCES) && (err_code != NRF_ERROR_BUSY) && (err_code != BLE_ERROR_GATTS_SYS_ATTR_MISSING) ) { APP_ERROR_HANDLER(err_code); } // Disable RR Interval recording every third heart rate measurement. // NOTE: An application will normally not do this. It is done here just for testing generation // of messages without RR Interval measurements. m_rr_interval_enabled = ((cnt % 3) != 0); } /**@brief Function for handling the RR interval timer timeout. * * @details This function will be called each time the RR interval timer expires. * * @param[in] p_context Pointer used for passing some arbitrary information (context) from the * app_start_timer() call to the timeout handler. */ static void rr_interval_timeout_handler(void * p_context) { UNUSED_PARAMETER(p_context); if (m_rr_interval_enabled) { uint16_t rr_interval; rr_interval = (uint16_t)sensorsim_measure(&m_rr_interval_sim_state, &m_rr_interval_sim_cfg); ble_hrs_rr_interval_add(&m_hrs, rr_interval); } } /**@brief Function for handling the Sensor Contact Detected timer timeout. * * @details This function will be called each time the Sensor Contact Detected timer expires. * * @param[in] p_context Pointer used for passing some arbitrary information (context) from the * app_start_timer() call to the timeout handler. */ static void sensor_contact_detected_timeout_handler(void * p_context) { static bool sensor_contact_detected = false; UNUSED_PARAMETER(p_context); sensor_contact_detected = !sensor_contact_detected; ble_hrs_sensor_contact_detected_update(&m_hrs, sensor_contact_detected); } /**@brief Function for the GAP initialization. * * @details This function sets up all the necessary GAP (Generic Access Profile) parameters of the * device including the device name, appearance, and the preferred connection parameters. */ static void gap_params_init(void) { uint32_t err_code; ble_gap_conn_params_t gap_conn_params; ble_gap_conn_sec_mode_t sec_mode; BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode); err_code = sd_ble_gap_device_name_set(&sec_mode, (const uint8_t *)DEVICE_NAME, strlen(DEVICE_NAME)); APP_ERROR_CHECK(err_code); err_code = sd_ble_gap_appearance_set(BLE_APPEARANCE_HEART_RATE_SENSOR_HEART_RATE_BELT); APP_ERROR_CHECK(err_code); memset(&gap_conn_params, 0, sizeof(gap_conn_params)); gap_conn_params.min_conn_interval = MIN_CONN_INTERVAL; gap_conn_params.max_conn_interval = MAX_CONN_INTERVAL; gap_conn_params.slave_latency = SLAVE_LATENCY; gap_conn_params.conn_sup_timeout = CONN_SUP_TIMEOUT; err_code = sd_ble_gap_ppcp_set(&gap_conn_params); APP_ERROR_CHECK(err_code); } /**@brief Function for initializing the Advertising functionality. * * @details Encodes the required advertising data and passes it to the stack. * Also builds a structure, m_adv_params, to be passed to the stack * when starting advertising. */ static void advertising_init(void) { uint32_t err_code; ble_advdata_t advdata; uint8_t flags = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE; ble_uuid_t adv_uuids[] = { {BLE_UUID_HEART_RATE_SERVICE, BLE_UUID_TYPE_BLE}, {BLE_UUID_BATTERY_SERVICE, BLE_UUID_TYPE_BLE}, {BLE_UUID_DEVICE_INFORMATION_SERVICE, BLE_UUID_TYPE_BLE} }; // Build and set advertising data. memset(&advdata, 0, sizeof(advdata)); advdata.name_type = BLE_ADVDATA_FULL_NAME; advdata.include_appearance = true; advdata.flags = flags; advdata.uuids_complete.uuid_cnt = sizeof(adv_uuids) / sizeof(adv_uuids[0]); advdata.uuids_complete.p_uuids = adv_uuids; err_code = ble_advdata_encode(&advdata, m_adv_data.adv_data.p_data, &m_adv_data.adv_data.len); APP_ERROR_CHECK(err_code); // Initialize advertising parameters (used when starting advertising). memset(&m_adv_params, 0, sizeof(m_adv_params)); m_adv_params.properties.type = BLE_GAP_ADV_TYPE_CONNECTABLE_SCANNABLE_UNDIRECTED; m_adv_params.p_peer_addr = NULL; // Undirected advertisement. m_adv_params.filter_policy = BLE_GAP_ADV_FP_ANY; m_adv_params.interval = APP_ADV_INTERVAL; m_adv_params.duration = APP_ADV_DURATION; err_code = sd_ble_gap_adv_set_configure(&m_adv_handle, &m_adv_data, &m_adv_params); APP_ERROR_CHECK(err_code); } /**@brief Function for handling Queued Write Module errors. * * @details A pointer to this function will be passed to each service which may need to inform the * application about an error. * * @param[in] nrf_error Error code containing information about what went wrong. */ static void nrf_qwr_error_handler(uint32_t nrf_error) { APP_ERROR_HANDLER(nrf_error); } /**@brief Function for initializing services that will be used by the application. * * @details Initialize the Heart Rate, Battery and Device Information services. */ static void services_init(void) { // Flag that prevents from Queued Write module reinitialization. static bool qwr_initialized = false; uint32_t err_code; ble_hrs_init_t hrs_init; ble_bas_init_t bas_init; ble_dis_init_t dis_init; nrf_ble_qwr_init_t qwr_init = {0}; uint8_t body_sensor_location; if (!qwr_initialized) { // Initialize the Queued Write module. qwr_init.error_handler = nrf_qwr_error_handler; err_code = nrf_ble_qwr_init(&m_qwr, &qwr_init); APP_ERROR_CHECK(err_code); qwr_initialized = true; } // Initialize Heart Rate Service. body_sensor_location = BLE_HRS_BODY_SENSOR_LOCATION_FINGER; memset(&hrs_init, 0, sizeof(hrs_init)); hrs_init.is_sensor_contact_supported = true; hrs_init.p_body_sensor_location = &body_sensor_location; // Here the sec level for the Heart Rate Service can be changed/increased. BLE_GAP_CONN_SEC_MODE_SET_OPEN(&hrs_init.hrs_hrm_attr_md.cccd_write_perm); BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&hrs_init.hrs_hrm_attr_md.read_perm); BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&hrs_init.hrs_hrm_attr_md.write_perm); BLE_GAP_CONN_SEC_MODE_SET_OPEN(&hrs_init.hrs_bsl_attr_md.read_perm); BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&hrs_init.hrs_bsl_attr_md.write_perm); err_code = ble_hrs_init(&m_hrs, &hrs_init); APP_ERROR_CHECK(err_code); // Initialize Battery Service. memset(&bas_init, 0, sizeof(bas_init)); // Here the sec level for the Battery Service can be increased. BLE_GAP_CONN_SEC_MODE_SET_OPEN(&bas_init.battery_level_char_attr_md.cccd_write_perm); BLE_GAP_CONN_SEC_MODE_SET_OPEN(&bas_init.battery_level_char_attr_md.read_perm); BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&bas_init.battery_level_char_attr_md.write_perm); BLE_GAP_CONN_SEC_MODE_SET_OPEN(&bas_init.battery_level_report_read_perm); bas_init.evt_handler = NULL; bas_init.support_notification = true; bas_init.p_report_ref = NULL; bas_init.initial_batt_level = 100; err_code = ble_bas_init(&m_bas, &bas_init); APP_ERROR_CHECK(err_code); // Initialize Device Information Service. memset(&dis_init, 0, sizeof(dis_init)); ble_srv_ascii_to_utf8(&dis_init.manufact_name_str, MANUFACTURER_NAME); BLE_GAP_CONN_SEC_MODE_SET_OPEN(&dis_init.dis_attr_md.read_perm); BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&dis_init.dis_attr_md.write_perm); err_code = ble_dis_init(&dis_init); APP_ERROR_CHECK(err_code); } /**@brief Function for initializing the sensor simulators. */ static void sensor_simulator_init(void) { m_battery_sim_cfg.min = MIN_BATTERY_LEVEL; m_battery_sim_cfg.max = MAX_BATTERY_LEVEL; m_battery_sim_cfg.incr = BATTERY_LEVEL_INCREMENT; m_battery_sim_cfg.start_at_max = true; sensorsim_init(&m_battery_sim_state, &m_battery_sim_cfg); m_heart_rate_sim_cfg.min = MIN_HEART_RATE; m_heart_rate_sim_cfg.max = MAX_HEART_RATE; m_heart_rate_sim_cfg.incr = HEART_RATE_INCREMENT; m_heart_rate_sim_cfg.start_at_max = false; sensorsim_init(&m_heart_rate_sim_state, &m_heart_rate_sim_cfg); m_rr_interval_sim_cfg.min = MIN_RR_INTERVAL; m_rr_interval_sim_cfg.max = MAX_RR_INTERVAL; m_rr_interval_sim_cfg.incr = RR_INTERVAL_INCREMENT; m_rr_interval_sim_cfg.start_at_max = false; sensorsim_init(&m_rr_interval_sim_state, &m_rr_interval_sim_cfg); } /**@brief Function for initializing security parameters. */ static void sec_params_init(void) { m_sec_params.bond = SEC_PARAM_BOND; m_sec_params.mitm = SEC_PARAM_MITM; m_sec_params.io_caps = SEC_PARAM_IO_CAPABILITIES; m_sec_params.oob = SEC_PARAM_OOB; m_sec_params.min_key_size = SEC_PARAM_MIN_KEY_SIZE; m_sec_params.max_key_size = SEC_PARAM_MAX_KEY_SIZE; } /**@brief Function for starting application timers. */ static void application_timers_start(void) { uint32_t err_code; // Create timers. err_code = app_timer_create(&m_battery_timer_id, APP_TIMER_MODE_REPEATED, battery_level_meas_timeout_handler); APP_ERROR_CHECK(err_code); err_code = app_timer_create(&m_heart_rate_timer_id, APP_TIMER_MODE_REPEATED, heart_rate_meas_timeout_handler); APP_ERROR_CHECK(err_code); err_code = app_timer_create(&m_rr_interval_timer_id, APP_TIMER_MODE_REPEATED, rr_interval_timeout_handler); APP_ERROR_CHECK(err_code); err_code = app_timer_create(&m_sensor_contact_timer_id, APP_TIMER_MODE_REPEATED, sensor_contact_detected_timeout_handler); APP_ERROR_CHECK(err_code); // Start timers. err_code = app_timer_start(m_battery_timer_id, BATTERY_LEVEL_MEAS_INTERVAL, NULL); APP_ERROR_CHECK(err_code); err_code = app_timer_start(m_heart_rate_timer_id, HEART_RATE_MEAS_INTERVAL, NULL); APP_ERROR_CHECK(err_code); err_code = app_timer_start(m_rr_interval_timer_id, RR_INTERVAL_INTERVAL, NULL); APP_ERROR_CHECK(err_code); err_code = app_timer_start(m_sensor_contact_timer_id, SENSOR_CONTACT_DETECTED_INTERVAL, NULL); APP_ERROR_CHECK(err_code); } /**@brief Function for starting advertising. */ static void advertising_start(void) { uint32_t err_code; err_code = sd_ble_gap_adv_start(m_adv_handle, APP_BLE_CONN_CFG_TAG); APP_ERROR_CHECK(err_code); err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING); APP_ERROR_CHECK(err_code); } /**@brief Function for handling a Connection Parameters error. * * @param[in] nrf_error Error code containing fault information. */ static void conn_params_error_handler(uint32_t nrf_error) { APP_ERROR_HANDLER(nrf_error); } /**@brief Function for initializing the Connection Parameters module. */ static void conn_params_init(void) { uint32_t err_code; ble_conn_params_init_t connection_params_init; memset(&connection_params_init, 0, sizeof(connection_params_init)); connection_params_init.p_conn_params = NULL; connection_params_init.first_conn_params_update_delay = FIRST_CONN_PARAMS_UPDATE_DELAY; connection_params_init.next_conn_params_update_delay = NEXT_CONN_PARAMS_UPDATE_DELAY; connection_params_init.max_conn_params_update_count = MAX_CONN_PARAMS_UPDATE_COUNT; connection_params_init.start_on_notify_cccd_handle = m_hrs.hrm_handles.cccd_handle; connection_params_init.disconnect_on_fail = true; connection_params_init.evt_handler = NULL; connection_params_init.error_handler = conn_params_error_handler; err_code = ble_conn_params_init(&connection_params_init); APP_ERROR_CHECK(err_code); } /**@brief Function for handling BLE events. * * @param[in] p_ble_evt Bluetooth stack event. * @param[in] p_context Unused. */ static void ble_evt_handler(ble_evt_t const * p_ble_evt, void * p_context) { uint32_t err_code; static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID; static ble_gap_sec_keyset_t s_sec_keyset; ble_gap_enc_info_t * p_enc_info; switch (p_ble_evt->header.evt_id) { case BLE_GAP_EVT_CONNECTED: err_code = bsp_indication_set(BSP_INDICATE_CONNECTED); APP_ERROR_CHECK(err_code); m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle; err_code = nrf_ble_qwr_conn_handle_assign(&m_qwr, m_conn_handle); APP_ERROR_CHECK(err_code); break; case BLE_GAP_EVT_DISCONNECTED: err_code = bsp_indication_set(BSP_INDICATE_IDLE); APP_ERROR_CHECK(err_code); advertising_start(); break; case BLE_GAP_EVT_SEC_PARAMS_REQUEST: s_sec_keyset.keys_peer.p_enc_key = NULL; s_sec_keyset.keys_peer.p_id_key = NULL; s_sec_keyset.keys_peer.p_sign_key = NULL; err_code = sd_ble_gap_sec_params_reply(m_conn_handle, BLE_GAP_SEC_STATUS_SUCCESS, &m_sec_params, &s_sec_keyset); APP_ERROR_CHECK(err_code); break; case BLE_GAP_EVT_AUTH_STATUS: break; case BLE_GAP_EVT_DATA_LENGTH_UPDATE_REQUEST: { ble_gap_data_length_params_t dl_params; // Clearing the struct will effectivly set members to @ref BLE_GAP_DATA_LENGTH_AUTO. memset(&dl_params, 0, sizeof(ble_gap_data_length_params_t)); err_code = sd_ble_gap_data_length_update(p_ble_evt->evt.gap_evt.conn_handle, &dl_params, NULL); APP_ERROR_CHECK(err_code); } break; case BLE_GATTS_EVT_SYS_ATTR_MISSING: err_code = sd_ble_gatts_sys_attr_set(m_conn_handle, NULL, 0, 0); APP_ERROR_CHECK(err_code); break; case BLE_GAP_EVT_SEC_INFO_REQUEST: if (s_sec_keyset.keys_own.p_enc_key != NULL) { p_enc_info = &s_sec_keyset.keys_own.p_enc_key->enc_info; err_code = sd_ble_gap_sec_info_reply(m_conn_handle, p_enc_info, NULL, NULL); APP_ERROR_CHECK(err_code); } else { // No keys found for this device. err_code = sd_ble_gap_sec_info_reply(m_conn_handle, NULL, NULL, NULL); APP_ERROR_CHECK(err_code); } break; case BLE_GAP_EVT_PHY_UPDATE_REQUEST: { ble_gap_phys_t const phys = { .rx_phys = BLE_GAP_PHY_AUTO, .tx_phys = BLE_GAP_PHY_AUTO, }; err_code = sd_ble_gap_phy_update(p_ble_evt->evt.gap_evt.conn_handle, &phys); APP_ERROR_CHECK(err_code); } break; case BLE_GAP_EVT_ADV_SET_TERMINATED: if (p_ble_evt->evt.gap_evt.params.adv_set_terminated.reason == BLE_GAP_EVT_ADV_SET_TERMINATED_REASON_TIMEOUT) { err_code = bsp_indication_set(BSP_INDICATE_IDLE); APP_ERROR_CHECK(err_code); err_code = app_button_disable(); APP_ERROR_CHECK(err_code); if (err_code == NRF_SUCCESS) { // Go to system-off mode. // (this function will not return; wakeup will cause a reset) err_code = sd_power_system_off(); APP_ERROR_CHECK(err_code); } } break; default: // No implementation needed. break; } } void ble_stack_start(void) { ret_code_t err_code; err_code = nrf_sdh_enable_request(); APP_ERROR_CHECK(err_code); ASSERT(nrf_sdh_is_enabled()); // Configure the BLE stack using the default settings. // Fetch the start address of the application RAM. uint32_t ram_start = 0; err_code = nrf_sdh_ble_default_cfg_set(APP_BLE_CONN_CFG_TAG, &ram_start); APP_ERROR_CHECK(err_code); // Enable BLE stack. err_code = nrf_sdh_ble_enable(&ram_start); APP_ERROR_CHECK(err_code); // Register a handler for BLE events. NRF_SDH_BLE_OBSERVER(m_ble_observer, APP_BLE_OBSERVER_PRIO, ble_evt_handler, NULL); } void ble_stack_stop(void) { uint32_t err_code; err_code = nrf_sdh_disable_request(); APP_ERROR_CHECK(err_code); ASSERT(!nrf_sdh_is_enabled()); } void ble_hrs_app_start(void) { gap_params_init(); advertising_init(); services_init(); sensor_simulator_init(); conn_params_init(); application_timers_start(); sec_params_init(); advertising_start(); } void ble_hrs_app_stop(void) { uint32_t err_code; // Stop any impending connection parameters update. err_code = ble_conn_params_stop(); APP_ERROR_CHECK(err_code); // Stop application timers. err_code = app_timer_stop(m_battery_timer_id); APP_ERROR_CHECK(err_code); err_code = app_timer_stop(m_heart_rate_timer_id); APP_ERROR_CHECK(err_code); err_code = app_timer_stop(m_rr_interval_timer_id); APP_ERROR_CHECK(err_code); err_code = app_timer_stop(m_sensor_contact_timer_id); APP_ERROR_CHECK(err_code); } /** * @} */