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diff --git a/code/temperature/main.c b/code/temperature/main.c new file mode 100644 index 0000000..3409aa0 --- /dev/null +++ b/code/temperature/main.c @@ -0,0 +1,1013 @@ +/** + * 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 <stdint.h> +#include <string.h> +#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(); + } +} + + +/** + * @} + */ |