/** * Copyright (c) 2014 - 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 * * @defgroup ble_sdk_app_hts_main main.c * @{ * @ingroup ble_sdk_app_hts * @brief Health Thermometer Service Sample Application main file. * * This file contains the source code for a sample application using the Health Thermometer service * It also includes the sample code for Battery and Device Information services. * This application uses the @ref srvlib_conn_params module. */ #include #include #include "nordic_common.h" #include "nrf.h" #include "app_error.h" #include "ble.h" #include "ble_err.h" #include "ble_hci.h" #include "ble_srv_common.h" #include "ble_advdata.h" #include "ble_advertising.h" #include "ble_bas.h" #include "ble_hts.h" #include "ble_dis.h" #include "ble_conn_params.h" #include "sensorsim.h" #include "nrf_sdh.h" #include "nrf_sdh_soc.h" #include "nrf_sdh_ble.h" #include "app_timer.h" #include "peer_manager.h" #include "bsp_btn_ble.h" #include "fds.h" #include "ble_conn_state.h" #include "nrf_ble_gatt.h" #include "nrf_ble_qwr.h" #include "nrf_pwr_mgmt.h" #include "nrf_log.h" #include "nrf_log_ctrl.h" #include "nrf_log_default_backends.h" #define DEVICE_NAME "Nordic_HTS" /**< Name of device. Will be included in the advertising data. */ #define MANUFACTURER_NAME "NordicSemiconductor" /**< Manufacturer. Will be passed to Device Information Service. */ #define MODEL_NUM "NS-HTS-EXAMPLE" /**< Model number. Will be passed to Device Information Service. */ #define MANUFACTURER_ID 0x1122334455 /**< Manufacturer ID, part of System ID. Will be passed to Device Information Service. */ #define ORG_UNIQUE_ID 0x667788 /**< Organizational Unique ID, part of System ID. 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 identifying the SoftDevice BLE 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 TEMP_TYPE_AS_CHARACTERISTIC 0 /**< Determines if temperature type is given as characteristic (1) or as a field of measurement (0). */ #define MIN_CELCIUS_DEGREES 3688 /**< Minimum temperature in celcius for use in the simulated measurement function (multiplied by 100 to avoid floating point arithmetic). */ #define MAX_CELCIUS_DEGRESS 3972 /**< Maximum temperature in celcius for use in the simulated measurement function (multiplied by 100 to avoid floating point arithmetic). */ #define CELCIUS_DEGREES_INCREMENT 36 /**< Value by which temperature is incremented/decremented for each call to the simulated measurement function (multiplied by 100 to avoid floating point arithmetic). */ #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 indication) 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_BOND 1 /**< Perform bonding. */ #define SEC_PARAM_MITM 0 /**< Man In The Middle protection not required. */ #define SEC_PARAM_LESC 0 /**< LE Secure Connections not enabled. */ #define SEC_PARAM_KEYPRESS 0 /**< Keypress notifications not enabled. */ #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. */ #define DEAD_BEEF 0xDEADBEEF /**< Value used as error code on stack dump, can be used to identify stack location on stack unwind. */ APP_TIMER_DEF(m_battery_timer_id); /**< Battery timer. */ BLE_BAS_DEF(m_bas); /**< Structure used to identify the battery service. */ BLE_HTS_DEF(m_hts); /**< Structure used to identify the health thermometer service. */ NRF_BLE_GATT_DEF(m_gatt); /**< GATT module instance. */ NRF_BLE_QWR_DEF(m_qwr); /**< Context for the Queued Write module.*/ BLE_ADVERTISING_DEF(m_advertising); /**< Advertising module instance. */ static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID; /**< Handle of the current connection. */ static bool m_hts_meas_ind_conf_pending = false; /**< Flag to keep track of when an indication confirmation is pending. */ 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_temp_celcius_sim_cfg; /**< Temperature simulator configuration. */ static sensorsim_state_t m_temp_celcius_sim_state; /**< Temperature simulator state. */ static ble_uuid_t m_adv_uuids[] = /**< Universally unique service identifiers. */ { {BLE_UUID_HEALTH_THERMOMETER_SERVICE, BLE_UUID_TYPE_BLE}, {BLE_UUID_BATTERY_SERVICE, BLE_UUID_TYPE_BLE}, {BLE_UUID_DEVICE_INFORMATION_SERVICE, BLE_UUID_TYPE_BLE} }; static void advertising_start(bool erase_bonds); static void temperature_measurement_send(void); /**@brief Callback function for asserts in the SoftDevice. * * @details This function will be called in case of an assert in the SoftDevice. * * @warning This handler is an example only and does not fit a final product. You need to analyze * how your product is supposed to react in case of Assert. * @warning On assert from the SoftDevice, the system can only recover on reset. * * @param[in] line_num Line number of the failing ASSERT call. * @param[in] file_name File name of the failing ASSERT call. */ void assert_nrf_callback(uint16_t line_num, const uint8_t * p_file_name) { app_error_handler(DEAD_BEEF, line_num, p_file_name); } /**@brief Function for handling Peer Manager events. * * @param[in] p_evt Peer Manager event. */ static void pm_evt_handler(pm_evt_t const * p_evt) { ret_code_t err_code; bool is_indication_enabled; switch (p_evt->evt_id) { case PM_EVT_BONDED_PEER_CONNECTED: { NRF_LOG_INFO("Connected to a previously bonded device."); } break; case PM_EVT_CONN_SEC_SUCCEEDED: { NRF_LOG_INFO("Connection secured: role: %d, conn_handle: 0x%x, procedure: %d.", ble_conn_state_role(p_evt->conn_handle), p_evt->conn_handle, p_evt->params.conn_sec_succeeded.procedure); // Send a single temperature measurement if indication is enabled. // NOTE: For this to work, make sure ble_hts_on_ble_evt() is called before // pm_evt_handler() in ble_evt_dispatch(). err_code = ble_hts_is_indication_enabled(&m_hts, &is_indication_enabled); APP_ERROR_CHECK(err_code); if (is_indication_enabled) { temperature_measurement_send(); } } break; case PM_EVT_CONN_SEC_FAILED: { /* Often, when securing fails, it shouldn't be restarted, for security reasons. * Other times, it can be restarted directly. * Sometimes it can be restarted, but only after changing some Security Parameters. * Sometimes, it cannot be restarted until the link is disconnected and reconnected. * Sometimes it is impossible, to secure the link, or the peer device does not support it. * How to handle this error is highly application dependent. */ } break; case PM_EVT_CONN_SEC_CONFIG_REQ: { // Reject pairing request from an already bonded peer. pm_conn_sec_config_t conn_sec_config = {.allow_repairing = false}; pm_conn_sec_config_reply(p_evt->conn_handle, &conn_sec_config); } break; case PM_EVT_STORAGE_FULL: { // Run garbage collection on the flash. err_code = fds_gc(); if (err_code == FDS_ERR_NO_SPACE_IN_QUEUES) { // Retry. } else { APP_ERROR_CHECK(err_code); } } break; case PM_EVT_PEERS_DELETE_SUCCEEDED: { advertising_start(false); } break; case PM_EVT_PEER_DATA_UPDATE_FAILED: { // Assert. APP_ERROR_CHECK(p_evt->params.peer_data_update_failed.error); } break; case PM_EVT_PEER_DELETE_FAILED: { // Assert. APP_ERROR_CHECK(p_evt->params.peer_delete_failed.error); } break; case PM_EVT_PEERS_DELETE_FAILED: { // Assert. APP_ERROR_CHECK(p_evt->params.peers_delete_failed_evt.error); } break; case PM_EVT_ERROR_UNEXPECTED: { // Assert. APP_ERROR_CHECK(p_evt->params.error_unexpected.error); } break; case PM_EVT_CONN_SEC_START: case PM_EVT_PEER_DATA_UPDATE_SUCCEEDED: case PM_EVT_PEER_DELETE_SUCCEEDED: case PM_EVT_LOCAL_DB_CACHE_APPLIED: case PM_EVT_LOCAL_DB_CACHE_APPLY_FAILED: // This can happen when the local DB has changed. case PM_EVT_SERVICE_CHANGED_IND_SENT: case PM_EVT_SERVICE_CHANGED_IND_CONFIRMED: default: break; } } /**@brief Function for performing a battery measurement, and update the Battery Level characteristic in the Battery Service. */ static void battery_level_update(void) { ret_code_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 != NRF_ERROR_BUSY) && (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 populating simulated health thermometer measurement. */ static void hts_sim_measurement(ble_hts_meas_t * p_meas) { static ble_date_time_t time_stamp = { 2012, 12, 5, 11, 50, 0 }; uint32_t celciusX100; p_meas->temp_in_fahr_units = false; p_meas->time_stamp_present = true; p_meas->temp_type_present = (TEMP_TYPE_AS_CHARACTERISTIC ? false : true); celciusX100 = sensorsim_measure(&m_temp_celcius_sim_state, &m_temp_celcius_sim_cfg); p_meas->temp_in_celcius.exponent = -2; p_meas->temp_in_celcius.mantissa = celciusX100; p_meas->temp_in_fahr.exponent = -2; p_meas->temp_in_fahr.mantissa = (32 * 100) + ((celciusX100 * 9) / 5); p_meas->time_stamp = time_stamp; p_meas->temp_type = BLE_HTS_TEMP_TYPE_FINGER; // update simulated time stamp time_stamp.seconds += 27; if (time_stamp.seconds > 59) { time_stamp.seconds -= 60; time_stamp.minutes++; if (time_stamp.minutes > 59) { time_stamp.minutes = 0; } } } /**@brief Function for the Timer initialization. * * @details Initializes the timer module. This creates and starts application timers. */ static void timers_init(void) { ret_code_t err_code; // Initialize timer module. err_code = app_timer_init(); APP_ERROR_CHECK(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); } /**@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) { ret_code_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_GENERIC_THERMOMETER); 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 GATT module. */ static void gatt_init(void) { ret_code_t err_code = nrf_ble_gatt_init(&m_gatt, NULL); APP_ERROR_CHECK(err_code); } /**@brief Function for simulating and sending one Temperature Measurement. */ static void temperature_measurement_send(void) { ble_hts_meas_t simulated_meas; ret_code_t err_code; if (!m_hts_meas_ind_conf_pending) { hts_sim_measurement(&simulated_meas); err_code = ble_hts_measurement_send(&m_hts, &simulated_meas); switch (err_code) { case NRF_SUCCESS: // Measurement was successfully sent, wait for confirmation. m_hts_meas_ind_conf_pending = true; break; case NRF_ERROR_INVALID_STATE: // Ignore error. break; default: APP_ERROR_HANDLER(err_code); break; } } } /**@brief Function for handling the Health Thermometer Service events. * * @details This function will be called for all Health Thermometer Service events which are passed * to the application. * * @param[in] p_hts Health Thermometer Service structure. * @param[in] p_evt Event received from the Health Thermometer Service. */ static void on_hts_evt(ble_hts_t * p_hts, ble_hts_evt_t * p_evt) { switch (p_evt->evt_type) { case BLE_HTS_EVT_INDICATION_ENABLED: // Indication has been enabled, send a single temperature measurement temperature_measurement_send(); break; case BLE_HTS_EVT_INDICATION_CONFIRMED: m_hts_meas_ind_conf_pending = false; break; default: // No implementation needed. break; } } /**@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 Health Thermometer, Battery and Device Information services. */ static void services_init(void) { ret_code_t err_code; ble_hts_init_t hts_init; ble_bas_init_t bas_init; ble_dis_init_t dis_init; nrf_ble_qwr_init_t qwr_init = {0}; ble_dis_sys_id_t sys_id; // Initialize 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); // Initialize Health Thermometer Service memset(&hts_init, 0, sizeof(hts_init)); hts_init.evt_handler = on_hts_evt; hts_init.temp_type_as_characteristic = TEMP_TYPE_AS_CHARACTERISTIC; hts_init.temp_type = BLE_HTS_TEMP_TYPE_BODY; // Here the sec level for the Health Thermometer Service can be changed/increased. BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&hts_init.hts_meas_attr_md.cccd_write_perm); BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&hts_init.hts_meas_attr_md.read_perm); BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&hts_init.hts_meas_attr_md.write_perm); BLE_GAP_CONN_SEC_MODE_SET_OPEN(&hts_init.hts_temp_type_attr_md.read_perm); BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&hts_init.hts_temp_type_attr_md.write_perm); err_code = ble_hts_init(&m_hts, &hts_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 changed/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_srv_ascii_to_utf8(&dis_init.model_num_str, MODEL_NUM); sys_id.manufacturer_id = MANUFACTURER_ID; sys_id.organizationally_unique_id = ORG_UNIQUE_ID; dis_init.p_sys_id = &sys_id; 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); // Temperature is in celcius (it is multiplied by 100 to avoid floating point arithmetic). m_temp_celcius_sim_cfg.min = MIN_CELCIUS_DEGREES; m_temp_celcius_sim_cfg.max = MAX_CELCIUS_DEGRESS; m_temp_celcius_sim_cfg.incr = CELCIUS_DEGREES_INCREMENT; m_temp_celcius_sim_cfg.start_at_max = false; sensorsim_init(&m_temp_celcius_sim_state, &m_temp_celcius_sim_cfg); } /**@brief Function for starting application timers. */ static void application_timers_start(void) { ret_code_t err_code; // Start application timers. err_code = app_timer_start(m_battery_timer_id, BATTERY_LEVEL_MEAS_INTERVAL, NULL); APP_ERROR_CHECK(err_code); } /**@brief Function for handling the Connection Parameters Module. * * @details This function will be called for all events in the Connection Parameters Module which * are passed to the application. * @note All this function does is to disconnect. This could have been done by simply * setting the disconnect_on_fail config parameter, but instead we use the event * handler mechanism to demonstrate its use. * * @param[in] p_evt Event received from the Connection Parameters Module. */ static void on_conn_params_evt(ble_conn_params_evt_t * p_evt) { ret_code_t err_code; if (p_evt->evt_type == BLE_CONN_PARAMS_EVT_FAILED) { err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_CONN_INTERVAL_UNACCEPTABLE); APP_ERROR_CHECK(err_code); } } /**@brief Function for handling a Connection Parameters error. * * @param[in] nrf_error Error code containing information about what went wrong. */ 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) { ret_code_t err_code; ble_conn_params_init_t cp_init; memset(&cp_init, 0, sizeof(cp_init)); cp_init.p_conn_params = NULL; cp_init.first_conn_params_update_delay = FIRST_CONN_PARAMS_UPDATE_DELAY; cp_init.next_conn_params_update_delay = NEXT_CONN_PARAMS_UPDATE_DELAY; cp_init.max_conn_params_update_count = MAX_CONN_PARAMS_UPDATE_COUNT; cp_init.start_on_notify_cccd_handle = BLE_GATT_HANDLE_INVALID; cp_init.disconnect_on_fail = false; cp_init.evt_handler = on_conn_params_evt; cp_init.error_handler = conn_params_error_handler; err_code = ble_conn_params_init(&cp_init); APP_ERROR_CHECK(err_code); } /**@brief Function for putting the chip into sleep mode. * * @note This function will not return. */ static void sleep_mode_enter(void) { ret_code_t err_code; err_code = bsp_indication_set(BSP_INDICATE_IDLE); APP_ERROR_CHECK(err_code); // Prepare wakeup buttons. err_code = bsp_btn_ble_sleep_mode_prepare(); APP_ERROR_CHECK(err_code); // 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); } /**@brief Function for handling advertising events. * * @details This function will be called for advertising events which are passed to the application. * * @param[in] ble_adv_evt Advertising event. */ static void on_adv_evt(ble_adv_evt_t ble_adv_evt) { ret_code_t err_code; switch (ble_adv_evt) { case BLE_ADV_EVT_FAST: NRF_LOG_INFO("Fast advertising."); err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING); APP_ERROR_CHECK(err_code); break; case BLE_ADV_EVT_IDLE: sleep_mode_enter(); break; default: break; } } /**@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 = NRF_SUCCESS; switch (p_ble_evt->header.evt_id) { case BLE_GAP_EVT_CONNECTED: NRF_LOG_INFO("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: NRF_LOG_INFO("Disconnected."); m_conn_handle = BLE_CONN_HANDLE_INVALID; m_hts_meas_ind_conf_pending = false; break; case BLE_GAP_EVT_PHY_UPDATE_REQUEST: { NRF_LOG_DEBUG("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_GATTC_EVT_TIMEOUT: // Disconnect on GATT Client timeout event. NRF_LOG_DEBUG("GATT Client Timeout."); err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gattc_evt.conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION); APP_ERROR_CHECK(err_code); break; case BLE_GATTS_EVT_TIMEOUT: // Disconnect on GATT Server timeout event. NRF_LOG_DEBUG("GATT Server Timeout."); err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gatts_evt.conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION); APP_ERROR_CHECK(err_code); break; default: // No implementation needed. break; } } /**@brief Function for initializing the BLE stack. * * @details Initializes the SoftDevice and the BLE event interrupt. */ static void ble_stack_init(void) { ret_code_t err_code; err_code = nrf_sdh_enable_request(); APP_ERROR_CHECK(err_code); // 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); } /**@brief Function for handling events from the BSP module. * * @param[in] event Event generated by button press. */ static void bsp_event_handler(bsp_event_t event) { ret_code_t err_code; switch (event) { case BSP_EVENT_SLEEP: sleep_mode_enter(); break; case BSP_EVENT_DISCONNECT: err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION); if (err_code != NRF_ERROR_INVALID_STATE) { APP_ERROR_CHECK(err_code); } break; case BSP_EVENT_WHITELIST_OFF: if (m_conn_handle == BLE_CONN_HANDLE_INVALID) { err_code = ble_advertising_restart_without_whitelist(&m_advertising); if (err_code != NRF_ERROR_INVALID_STATE) { APP_ERROR_CHECK(err_code); } } break; case BSP_EVENT_KEY_0: if (m_conn_handle != BLE_CONN_HANDLE_INVALID) { temperature_measurement_send(); } break; default: break; } } /**@brief Function for the Peer Manager initialization. */ static void peer_manager_init(void) { ble_gap_sec_params_t sec_param; ret_code_t err_code; err_code = pm_init(); APP_ERROR_CHECK(err_code); memset(&sec_param, 0, sizeof(ble_gap_sec_params_t)); // Security parameters to be used for all security procedures. sec_param.bond = SEC_PARAM_BOND; sec_param.mitm = SEC_PARAM_MITM; sec_param.lesc = SEC_PARAM_LESC; sec_param.keypress = SEC_PARAM_KEYPRESS; sec_param.io_caps = SEC_PARAM_IO_CAPABILITIES; sec_param.oob = SEC_PARAM_OOB; sec_param.min_key_size = SEC_PARAM_MIN_KEY_SIZE; sec_param.max_key_size = SEC_PARAM_MAX_KEY_SIZE; sec_param.kdist_own.enc = 1; sec_param.kdist_own.id = 1; sec_param.kdist_peer.enc = 1; sec_param.kdist_peer.id = 1; err_code = pm_sec_params_set(&sec_param); APP_ERROR_CHECK(err_code); err_code = pm_register(pm_evt_handler); APP_ERROR_CHECK(err_code); } /**@brief Clear bond information from persistent storage. */ static void delete_bonds(void) { ret_code_t err_code; NRF_LOG_INFO("Erase bonds!"); err_code = pm_peers_delete(); 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 to be passed to the stack when starting advertising. */ static void advertising_init(void) { ret_code_t err_code; ble_advertising_init_t init; memset(&init, 0, sizeof(init)); init.advdata.name_type = BLE_ADVDATA_FULL_NAME; init.advdata.include_appearance = true; init.advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE; init.advdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]); init.advdata.uuids_complete.p_uuids = m_adv_uuids; init.config.ble_adv_fast_enabled = true; init.config.ble_adv_fast_interval = APP_ADV_INTERVAL; init.config.ble_adv_fast_timeout = APP_ADV_DURATION; init.evt_handler = on_adv_evt; err_code = ble_advertising_init(&m_advertising, &init); APP_ERROR_CHECK(err_code); ble_advertising_conn_cfg_tag_set(&m_advertising, APP_BLE_CONN_CFG_TAG); } /**@brief Function for initializing buttons and leds. * * @param[out] p_erase_bonds Will be true if the clear bonding button was pressed to wake the application up. */ static void buttons_leds_init(bool * p_erase_bonds) { ret_code_t err_code; bsp_event_t startup_event; err_code = bsp_init(BSP_INIT_LEDS | BSP_INIT_BUTTONS, bsp_event_handler); APP_ERROR_CHECK(err_code); err_code = bsp_btn_ble_init(NULL, &startup_event); APP_ERROR_CHECK(err_code); *p_erase_bonds = (startup_event == BSP_EVENT_CLEAR_BONDING_DATA); } /**@brief Function for initializing the nrf log module. */ static void log_init(void) { ret_code_t err_code = NRF_LOG_INIT(NULL); APP_ERROR_CHECK(err_code); NRF_LOG_DEFAULT_BACKENDS_INIT(); } /**@brief Function for initializing power management. */ static void power_management_init(void) { ret_code_t err_code; err_code = nrf_pwr_mgmt_init(); APP_ERROR_CHECK(err_code); } /**@brief Function for handling the idle state (main loop). * * @details If there is no pending log operation, then sleep until next the next event occurs. */ static void idle_state_handle(void) { if (NRF_LOG_PROCESS() == false) { nrf_pwr_mgmt_run(); } } /**@brief Function for starting advertising. */ static void advertising_start(bool erase_bonds) { if (erase_bonds == true) { delete_bonds(); // Advertising is started by PM_EVT_PEERS_DELETE_SUCCEEDED event. } else { uint32_t err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST); APP_ERROR_CHECK(err_code); } } /**@brief Function for application main entry. */ int main(void) { bool erase_bonds; // Initialize. log_init(); timers_init(); buttons_leds_init(&erase_bonds); power_management_init(); ble_stack_init(); gap_params_init(); gatt_init(); advertising_init(); services_init(); sensor_simulator_init(); conn_params_init(); peer_manager_init(); // Start execution. NRF_LOG_INFO("Health Thermometer example started."); application_timers_start(); advertising_start(erase_bonds); // Enter main loop. for (;;) { idle_state_handle(); } } /** * @} */