/* Copyright (c) 2014 Nordic Semiconductor. All Rights Reserved. * * The information contained herein is property of Nordic Semiconductor ASA. * Terms and conditions of usage are described in detail in NORDIC * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT. * * Licensees are granted free, non-transferable use of the information. NO * WARRANTY of ANY KIND is provided. This heading must NOT be removed from * the file. * */ /** @file * * @defgroup ble_sdk_app_gls_main main.c * @{ * @ingroup ble_sdk_app_gls * @brief Glucose Meter service Sample Application * * This file contains the source code for a sample application using the Glucose Meter service * (and also 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 "nrf_gpio.h" #include "ble.h" #include "ble_hci.h" #include "ble_srv_common.h" #include "ble_advdata.h" #include "ble_advertising.h" #include "ble_dis.h" #include "ble_bas.h" #include "ble_gls.h" #include "ble_dfu.h" #include "ble_racp.h" #include "ble_conn_params.h" #include "boards.h" #include "sensorsim.h" #include "softdevice_handler.h" #include "app_timer.h" #include "peer_manager.h" #include "app_button.h" #include "app_uart.h" #include "bsp.h" #include "bsp_btn_ble.h" #include "fds.h" #include "fstorage.h" #include "ble_conn_state.h" #define NRF_LOG_MODULE_NAME "APP" #include "nrf_log.h" #include "nrf_log_ctrl.h" #if BUTTONS_NUMBER < 2 #error "Not enough resources on board to run example" #endif #if (NRF_SD_BLE_API_VERSION == 3) #define NRF_BLE_MAX_MTU_SIZE GATT_MTU_SIZE_DEFAULT /**< MTU size used in the softdevice enabling and to reply to a BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST event. */ #endif #define CENTRAL_LINK_COUNT 0 /**< Number of central links used by the application. When changing this number remember to adjust the RAM settings*/ #define PERIPHERAL_LINK_COUNT 1 /**< Number of peripheral links used by the application. When changing this number remember to adjust the RAM settings*/ #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_Glucose" /**< Name of device. Will be included in the advertising data. */ #define MANUFACTURER_NAME "NordicSemiconductor" /**< Manufacturer. Will be passed to Device Information Service. */ #define MODEL_NUMBER "nRF51" /**< Model Number string. Will be passed to Device Information Service. */ #define MANUFACTURER_ID 0x55AA55AA55 /**< DUMMY Manufacturer ID. Will be passed to Device Information Service. You shall use the ID for your Company*/ #define ORG_UNIQUE_ID 0xEEBBEE /**< DUMMY Organisation Unique ID. Will be passed to Device Information Service. You shall use the Organisation Unique ID relevant for your Company */ #define APP_ADV_INTERVAL 40 /**< The advertising interval (in units of 0.625 ms. This value corresponds to 25 ms). */ #define APP_ADV_TIMEOUT_IN_SECONDS 180 /**< The advertising timeout in units of seconds. */ #define APP_TIMER_PRESCALER 0 /**< Value of the RTC1 PRESCALER register. */ #define APP_TIMER_OP_QUEUE_SIZE 4 /**< Size of timer operation queues. */ #define SECURITY_REQUEST_DELAY APP_TIMER_TICKS(400, APP_TIMER_PRESCALER) /**< Delay after connection until Security Request is sent, if necessary (ticks). */ #define BATTERY_LEVEL_MEAS_INTERVAL APP_TIMER_TICKS(10000, APP_TIMER_PRESCALER) /**< 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 MIN_CONN_INTERVAL MSEC_TO_UNITS(10, UNIT_1_25_MS) /**< Minimum acceptable connection interval (10 ms). */ #define MAX_CONN_INTERVAL MSEC_TO_UNITS(100, UNIT_1_25_MS) /**< Maximum acceptable connection interval (100 ms) */ #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, APP_TIMER_PRESCALER) /**< 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, APP_TIMER_PRESCALER) /**< Time between each call to sd_ble_gap_conn_param_update after the first call (30 seconds). */ #define MAX_CONN_PARAM_UPDATE_COUNT 3 /**< Number of attempts before giving up the connection parameter negotiation. */ #define SEC_PARAM_BOND 1 /**< Perform bonding. */ #define SEC_PARAM_MITM 1 /**< Man In The Middle protection required (applicable when display module is detected). */ #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_DISPLAY_ONLY /**< Display 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 PASSKEY_TXT "Passkey:" /**< Message to be displayed together with the pass-key. */ #define PASSKEY_TXT_LENGTH 8 /**< Length of message to be displayed together with the pass-key. */ #define PASSKEY_LENGTH 6 /**< Length of pass-key received by the stack for display. */ #define DEAD_BEEF 0xDEADBEEF /**< Value used as error code on stack dump, can be used to identify stack location on stack unwind. */ #define APP_FEATURE_NOT_SUPPORTED BLE_GATT_STATUS_ATTERR_APP_BEGIN + 2 /**< Reply when unsupported features are requested. */ static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID; /**< Handle of the current connection. */ static ble_bas_t m_bas; /**< Structure used to identify the battery service. */ static ble_gls_t m_gls; /**< Structure used to identify the glucose service. */ static ble_dfu_t m_dfus; /**< Structure used to identify the DFU service. */ 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. */ APP_TIMER_DEF(m_battery_timer_id); /**< Battery timer. */ APP_TIMER_DEF(m_sec_req_timer_id); /**< Security Request timer. */ static ble_uuid_t m_adv_uuids[] = {{BLE_UUID_GLUCOSE_SERVICE, BLE_UUID_TYPE_BLE}, {BLE_UUID_BATTERY_SERVICE, BLE_UUID_TYPE_BLE}, {BLE_UUID_DEVICE_INFORMATION_SERVICE, BLE_UUID_TYPE_BLE}}; /**< Universally unique service identifiers. */ pm_peer_id_t m_peer_to_be_deleted = PM_PEER_ID_INVALID; static void advertising_start(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; switch (p_evt->evt_id) { case PM_EVT_BONDED_PEER_CONNECTED: { NRF_LOG_INFO("Connected to a previously bonded device.\r\n"); // Start Security Request timer. err_code = app_timer_start(m_sec_req_timer_id, SECURITY_REQUEST_DELAY, NULL); APP_ERROR_CHECK(err_code); } break; case PM_EVT_CONN_SEC_SUCCEEDED: { pm_conn_sec_status_t conn_sec_status; // Check if the link is authenticated (meaning at least MITM). err_code = pm_conn_sec_status_get(p_evt->conn_handle, &conn_sec_status); APP_ERROR_CHECK(err_code); if (conn_sec_status.mitm_protected) { NRF_LOG_INFO("Link secured. Role: %d. conn_handle: %d, Procedure: %d\r\n", ble_conn_state_role(p_evt->conn_handle), p_evt->conn_handle, p_evt->params.conn_sec_succeeded.procedure); } else { // The peer did not use MITM, disconnect. NRF_LOG_INFO("Collector did not use MITM, disconnecting\r\n"); err_code = pm_peer_id_get(m_conn_handle, &m_peer_to_be_deleted); APP_ERROR_CHECK(err_code); err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION); APP_ERROR_CHECK(err_code); } } break; case PM_EVT_CONN_SEC_FAILED: { NRF_LOG_INFO("Failed to secure connection. Disconnecting.\r\n"); m_conn_handle = BLE_CONN_HANDLE_INVALID; err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION); APP_ERROR_CHECK(err_code); } 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_BUSY || err_code == FDS_ERR_NO_SPACE_IN_QUEUES) { // Retry. } else { APP_ERROR_CHECK(err_code); } } break; case PM_EVT_PEERS_DELETE_SUCCEEDED: { advertising_start(); } break; case PM_EVT_LOCAL_DB_CACHE_APPLY_FAILED: { // The local database has likely changed, send service changed indications. pm_local_database_has_changed(); } 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_SERVICE_CHANGED_IND_SENT: case PM_EVT_SERVICE_CHANGED_IND_CONFIRMED: default: break; } } /**@brief Function for handling Service 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 service_error_handler(uint32_t nrf_error) { APP_ERROR_HANDLER(nrf_error); } /**@brief Function for performing battery measurement and updating the Battery Level characteristic * in 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); if ((err_code != NRF_SUCCESS) && (err_code != NRF_ERROR_INVALID_STATE) && (err_code != BLE_ERROR_NO_TX_PACKETS) && (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 Security Request timer timeout. * * @details This function will be called each time the Security Request 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 sec_req_timeout_handler(void * p_context) { uint32_t err_code; if (m_conn_handle != BLE_CONN_HANDLE_INVALID) { // Initiate bonding. NRF_LOG_DEBUG("Start encryption\r\n"); err_code = pm_conn_secure(m_conn_handle, false); if (err_code != NRF_ERROR_INVALID_STATE) { APP_ERROR_CHECK(err_code); } } } /**@brief Function for updating glucose measurement and updating glucose characteristic in Glucose. Service. */ static void read_glucose_measurement(void) { ble_gls_rec_t rec; uint32_t err_code; static int16_t s_mantissa = 550; static int16_t s_exponent = -3; static uint8_t s_secs = 5; // simulate the reading of a glucose measurement. rec.meas.flags = BLE_GLS_MEAS_FLAG_TIME_OFFSET | BLE_GLS_MEAS_FLAG_CONC_TYPE_LOC | BLE_GLS_MEAS_FLAG_UNITS_MOL_L; rec.meas.base_time.year = 2012; rec.meas.base_time.month = 1; rec.meas.base_time.day = 1; rec.meas.base_time.hours = 12; rec.meas.base_time.minutes = 30; rec.meas.base_time.seconds = 15; rec.meas.glucose_concentration.exponent = s_exponent; rec.meas.glucose_concentration.mantissa = s_mantissa; rec.meas.time_offset = 0; rec.meas.type = BLE_GLS_MEAS_TYPE_CAP_BLOOD; rec.meas.sample_location = BLE_GLS_MEAS_LOC_FINGER; rec.meas.sensor_status_annunciation = 0; // change values for next read. s_mantissa += 23; if (s_mantissa > 939) { s_mantissa -= 434; } s_secs += 3; if (s_secs > 59) { s_secs = 0; } err_code = ble_gls_glucose_new_meas(&m_gls, &rec); if (err_code != NRF_SUCCESS) { // Do nothing. } } /**@brief Function for the Timer initialization. * * @details Initializes the timer module. This creates and starts application timers. */ static void timers_init(void) { uint32_t err_code; // Initialize timer module. APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_OP_QUEUE_SIZE, false); // 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); // Create Security Request timer. err_code = app_timer_create(&m_sec_req_timer_id, APP_TIMER_MODE_SINGLE_SHOT, sec_req_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) { 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_GENERIC_GLUCOSE_METER); 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); } static void ble_dfu_evt_handler(ble_dfu_t * p_dfu, ble_dfu_evt_t * p_evt) { switch (p_evt->type) { case BLE_DFU_EVT_INDICATION_DISABLED: NRF_LOG_INFO("Indication for BLE_DFU is disabled\r\n"); break; case BLE_DFU_EVT_INDICATION_ENABLED: NRF_LOG_INFO("Indication for BLE_DFU is enabled\r\n"); break; case BLE_DFU_EVT_ENTERING_BOOTLOADER: NRF_LOG_INFO("Device is entering bootloader mode!\r\n"); break; default: NRF_LOG_INFO("Unknown event from ble_dfu\r\n"); break; } } /**@brief Function for initializing services that will be used by the application. * * @details Initialize the Glucose, Battery and Device Information services. */ static void services_init(void) { uint32_t err_code; ble_gls_init_t gls_init; ble_dis_init_t dis_init; ble_bas_init_t bas_init; ble_dfu_init_t dfus_init; // Initialize Glucose Service - sample selection of feature bits. memset(&gls_init, 0, sizeof(gls_init)); gls_init.evt_handler = NULL; gls_init.error_handler = service_error_handler; gls_init.feature = 0; gls_init.feature |= BLE_GLS_FEATURE_LOW_BATT; gls_init.feature |= BLE_GLS_FEATURE_TEMP_HIGH_LOW; gls_init.feature |= BLE_GLS_FEATURE_GENERAL_FAULT; gls_init.is_context_supported = false; err_code = ble_gls_init(&m_gls, &gls_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.serial_num_str, MODEL_NUMBER); ble_dis_sys_id_t system_id; system_id.manufacturer_id = MANUFACTURER_ID; system_id.organizationally_unique_id = ORG_UNIQUE_ID; dis_init.p_sys_id = &system_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); // Initialize the Device Firmware Update Service. memset(&dfus_init, 0, sizeof(dfus_init)); dfus_init.evt_handler = ble_dfu_evt_handler; dfus_init.ctrl_point_security_req_write_perm = SEC_SIGNED; dfus_init.ctrl_point_security_req_cccd_write_perm = SEC_SIGNED; err_code = ble_dfu_init(&m_dfus, &dfus_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); } /**@brief Function for starting application timers. */ static void application_timers_start(void) { uint32_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 Parameter events. * * @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 configuration 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) { uint32_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) { uint32_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_PARAM_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) { uint32_t 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 the Application's BLE Stack 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) { uint32_t err_code; switch (ble_adv_evt) { case BLE_ADV_EVT_FAST: NRF_LOG_INFO("Fast advertising\r\n"); err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING); APP_ERROR_CHECK(err_code); break; // BLE_ADV_EVT_FAST case BLE_ADV_EVT_IDLE: sleep_mode_enter(); break; // BLE_ADV_EVT_IDLE default: break; } } /**@brief Function for handling the Application's BLE Stack events. * * @param[in] p_ble_evt Bluetooth stack event. */ static void on_ble_evt(ble_evt_t * p_ble_evt) { uint32_t err_code = NRF_SUCCESS; // lint -save -e438 // Last value assigned to variable 'err_code' not used switch (p_ble_evt->header.evt_id) { case BLE_GAP_EVT_DISCONNECTED: { NRF_LOG_INFO("Disconnected\r\n"); m_conn_handle = BLE_CONN_HANDLE_INVALID; /*check if the last connected peer had not used MITM, if so, delete its bond information*/ if (m_peer_to_be_deleted != PM_PEER_ID_INVALID) { ret_code_t ret_val = pm_peer_delete(m_peer_to_be_deleted); APP_ERROR_CHECK(ret_val); NRF_LOG_DEBUG("Collector's bond deleted\r\n"); m_peer_to_be_deleted = PM_PEER_ID_INVALID; } } break; // BLE_GAP_EVT_DISCONNECTED case BLE_GAP_EVT_CONNECTED: { m_peer_to_be_deleted = PM_PEER_ID_INVALID; NRF_LOG_INFO("Connected\r\n"); err_code = bsp_indication_set(BSP_INDICATE_CONNECTED); APP_ERROR_CHECK(err_code); m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle; // Start Security Request timer. err_code = app_timer_start(m_sec_req_timer_id, SECURITY_REQUEST_DELAY, NULL); APP_ERROR_CHECK(err_code); } break; // BLE_GAP_EVT_CONNECTED case BLE_GATTC_EVT_TIMEOUT: // Disconnect on GATT Client timeout event. NRF_LOG_DEBUG("GATT Client Timeout.\r\n"); 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; // BLE_GATTC_EVT_TIMEOUT case BLE_GATTS_EVT_TIMEOUT: // Disconnect on GATT Server timeout event. NRF_LOG_DEBUG("GATT Server Timeout.\r\n"); 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; // BLE_GATTS_EVT_TIMEOUT case BLE_GAP_EVT_SEC_PARAMS_REQUEST: NRF_LOG_DEBUG("BLE_GAP_EVT_SEC_PARAMS_REQUEST\r\n"); break; // BLE_GAP_EVT_SEC_PARAMS_REQUEST case BLE_GAP_EVT_PASSKEY_DISPLAY: { char passkey[PASSKEY_LENGTH + 1]; memcpy(passkey, p_ble_evt->evt.gap_evt.params.passkey_display.passkey, PASSKEY_LENGTH); passkey[PASSKEY_LENGTH] = 0; // Don't send delayed Security Request if security procedure is already in progress. err_code = app_timer_stop(m_sec_req_timer_id); APP_ERROR_CHECK(err_code); NRF_LOG_INFO("Passkey: %s\r\n", nrf_log_push(passkey)); } break; // BLE_GAP_EVT_PASSKEY_DISPLAY case BLE_EVT_USER_MEM_REQUEST: err_code = sd_ble_user_mem_reply(m_conn_handle, NULL); APP_ERROR_CHECK(err_code); break; // BLE_EVT_USER_MEM_REQUEST case BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST: { ble_gatts_evt_rw_authorize_request_t req; ble_gatts_rw_authorize_reply_params_t auth_reply; req = p_ble_evt->evt.gatts_evt.params.authorize_request; if (req.type != BLE_GATTS_AUTHORIZE_TYPE_INVALID) { if ((req.request.write.op == BLE_GATTS_OP_PREP_WRITE_REQ) || (req.request.write.op == BLE_GATTS_OP_EXEC_WRITE_REQ_NOW) || (req.request.write.op == BLE_GATTS_OP_EXEC_WRITE_REQ_CANCEL)) { if (req.type == BLE_GATTS_AUTHORIZE_TYPE_WRITE) { auth_reply.type = BLE_GATTS_AUTHORIZE_TYPE_WRITE; } else { auth_reply.type = BLE_GATTS_AUTHORIZE_TYPE_READ; } auth_reply.params.write.gatt_status = APP_FEATURE_NOT_SUPPORTED; err_code = sd_ble_gatts_rw_authorize_reply(p_ble_evt->evt.gatts_evt.conn_handle, &auth_reply); APP_ERROR_CHECK(err_code); } } } break; // BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST #if (NRF_SD_BLE_API_VERSION == 3) case BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST: err_code = sd_ble_gatts_exchange_mtu_reply(p_ble_evt->evt.gatts_evt.conn_handle, NRF_BLE_MAX_MTU_SIZE); APP_ERROR_CHECK(err_code); break; // BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST #endif default: // No implementation needed. break; } } /**@brief Function for dispatching a BLE stack event to all modules with a BLE stack event handler. * * @details This function is called from the BLE Stack event interrupt handler after a BLE stack * event has been received. * * @param[in] p_ble_evt Bluetooth stack event. */ static void ble_evt_dispatch(ble_evt_t * p_ble_evt) { ble_conn_state_on_ble_evt(p_ble_evt); pm_on_ble_evt(p_ble_evt); ble_gls_on_ble_evt(&m_gls, p_ble_evt); ble_bas_on_ble_evt(&m_bas, p_ble_evt); ble_conn_params_on_ble_evt(p_ble_evt); bsp_btn_ble_on_ble_evt(p_ble_evt); on_ble_evt(p_ble_evt); ble_advertising_on_ble_evt(p_ble_evt); ble_dfu_on_ble_evt(&m_dfus, p_ble_evt); } /**@brief Function for dispatching a system event to interested modules. * * @details This function is called from the System event interrupt handler after a system * event has been received. * * @param[in] sys_evt System stack event. */ static void sys_evt_dispatch(uint32_t sys_evt) { // Dispatch the system event to the fstorage module, where it will be // dispatched to the Flash Data Storage (FDS) module. fs_sys_event_handler(sys_evt); // Dispatch to the Advertising module last, since it will check if there are any // pending flash operations in fstorage. Let fstorage process system events first, // so that it can report correctly to the Advertising module. ble_advertising_on_sys_evt(sys_evt); } /**@brief Function for initializing the BLE stack. * * @details Initializes the SoftDevice and the BLE event interrupt. */ static void ble_stack_init(void) { uint32_t err_code; nrf_clock_lf_cfg_t clock_lf_cfg = NRF_CLOCK_LFCLKSRC; // Initialize the SoftDevice handler module. SOFTDEVICE_HANDLER_INIT(&clock_lf_cfg, NULL); ble_enable_params_t ble_enable_params; err_code = softdevice_enable_get_default_config(CENTRAL_LINK_COUNT, PERIPHERAL_LINK_COUNT, &ble_enable_params); APP_ERROR_CHECK(err_code); // Check the ram settings against the used number of links CHECK_RAM_START_ADDR(CENTRAL_LINK_COUNT, PERIPHERAL_LINK_COUNT); // Enable BLE stack. #if (NRF_SD_BLE_API_VERSION == 3) ble_enable_params.gatt_enable_params.att_mtu = NRF_BLE_MAX_MTU_SIZE; #endif err_code = softdevice_enable(&ble_enable_params); APP_ERROR_CHECK(err_code); // Register with the SoftDevice handler module for BLE events. err_code = softdevice_ble_evt_handler_set(ble_evt_dispatch); APP_ERROR_CHECK(err_code); // Register with the SoftDevice handler module for BLE events. err_code = softdevice_sys_evt_handler_set(sys_evt_dispatch); APP_ERROR_CHECK(err_code); } /**@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) { uint32_t err_code; switch (event) { case BSP_EVENT_SLEEP: sleep_mode_enter(); break; // BSP_EVENT_SLEEP 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; // BSP_EVENT_DISCONNECT case BSP_EVENT_WHITELIST_OFF: if (m_conn_handle == BLE_CONN_HANDLE_INVALID) { err_code = ble_advertising_restart_without_whitelist(); if (err_code != NRF_ERROR_INVALID_STATE) { APP_ERROR_CHECK(err_code); } } break; // BSP_EVENT_WHITELIST_OFF case BSP_EVENT_KEY_1: read_glucose_measurement(); break; // BSP_EVENT_KEY_1 default: break; } } /**@brief Function for the Peer Manager initialization. * * @param[in] erase_bonds Indicates whether bonding information should be cleared from * persistent storage during initialization of the Peer Manager. */ static void peer_manager_init(bool erase_bonds) { ble_gap_sec_params_t sec_param; ret_code_t err_code; err_code = pm_init(); APP_ERROR_CHECK(err_code); if (erase_bonds) { err_code = pm_peers_delete(); 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 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) { uint32_t err_code; ble_advdata_t advdata; ble_adv_modes_config_t options; // Build and set advertising data. memset(&advdata, 0, sizeof(advdata)); advdata.name_type = BLE_ADVDATA_FULL_NAME; advdata.include_appearance = true; advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE;; advdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]); advdata.uuids_complete.p_uuids = m_adv_uuids; memset(&options, 0, sizeof(options)); options.ble_adv_fast_enabled = true; options.ble_adv_fast_interval = APP_ADV_INTERVAL; options.ble_adv_fast_timeout = APP_ADV_TIMEOUT_IN_SECONDS; err_code = ble_advertising_init(&advdata, NULL, &options, on_adv_evt, NULL); APP_ERROR_CHECK(err_code); } /**@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) { bsp_event_t startup_event; uint32_t err_code = bsp_init(BSP_INIT_LED | BSP_INIT_BUTTONS, APP_TIMER_TICKS(100, APP_TIMER_PRESCALER), 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 the Power manager. */ static void power_manage(void) { uint32_t err_code = sd_app_evt_wait(); APP_ERROR_CHECK(err_code); } /**@brief Function for starting advertising. */ static void advertising_start(void) { uint32_t err_code = ble_advertising_start(BLE_ADV_MODE_FAST); APP_ERROR_CHECK(err_code); } /**@brief Function for application main entry. */ int main(void) { uint32_t err_code; bool erase_bonds; // Initialize. err_code = NRF_LOG_INIT(NULL); APP_ERROR_CHECK(err_code); timers_init(); buttons_leds_init(&erase_bonds); ble_stack_init(); peer_manager_init(erase_bonds); if (erase_bonds == true) { NRF_LOG_INFO("Bonds erased!\r\n"); } gap_params_init(); advertising_init(); services_init(); sensor_simulator_init(); conn_params_init(); // Start execution. application_timers_start(); NRF_LOG_INFO("GLS Start!\r\n"); advertising_start(); // Enter main loop. for (;;) { if (NRF_LOG_PROCESS() == false) { power_manage(); } } } /** * @} */