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Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/examples/ble_peripheral/ble_app_cts_c/main.c')
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diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/examples/ble_peripheral/ble_app_cts_c/main.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/examples/ble_peripheral/ble_app_cts_c/main.c new file mode 100644 index 0000000..4c03efe --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/examples/ble_peripheral/ble_app_cts_c/main.c @@ -0,0 +1,1131 @@ +/** + * 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_cts_c_main main.c + * @{ + * @ingroup ble_sdk_app_cts_c + * @brief Current Time Profile sample application. + * + * This file contains the source code for a sample application that uses Current Time Service. + * This is the client role of the profile, implemented on a peripheral device. + * When a central device connects, the application will trigger a security procedure (if this is not done + * by the central side first). Completion of the security procedure will trigger a service + * discovery. When the Current Time Service and Characteristic have been discovered on the + * server, pressing button 1 will trigger a read of the current time and print it on the UART. + * + */ + +#include <stdint.h> +#include <string.h> +#include "nrf.h" +#include "app_error.h" +#include "app_scheduler.h" +#include "app_timer.h" +#include "ble.h" +#include "ble_cts_c.h" +#include "ble_db_discovery.h" +#include "ble_hci.h" +#include "ble_srv_common.h" +#include "ble_advdata.h" +#include "ble_advertising.h" +#include "ble_conn_params.h" +#include "bsp_btn_ble.h" +#include "peer_manager.h" +#include "nordic_common.h" +#include "nrf_sdh.h" +#include "nrf_sdh_soc.h" +#include "nrf_sdh_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_CTS" /**< Name of the device. Will be included in the advertising data. */ + +#define APP_BLE_OBSERVER_PRIO 3 /**< Application's BLE observer priority. You shoulnd't need to modify this value. */ +#define APP_BLE_CONN_CFG_TAG 1 /**< A tag identifying the SoftDevice BLE configuration. */ + +#define APP_ADV_FAST_INTERVAL 0x0028 /**< Fast advertising interval (in units of 0.625 ms). The default value corresponds to 25 ms. */ +#define APP_ADV_SLOW_INTERVAL 0x0C80 /**< Slow advertising interval (in units of 0.625 ms). The default value corresponds to 2 seconds. */ + +#define APP_ADV_FAST_DURATION 3000 /**< The advertising duration of fast advertising in units of 10 milliseconds. */ +#define APP_ADV_SLOW_DURATION 18000 /**< The advertising duration of slow advertising in units of 10 milliseconds. */ + + +#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 time-out (4 seconds). */ +#define FIRST_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(5000) /**< Time from initiating event (connect or start of notification) to first time sd_ble_gap_conn_param_update is called (5 seconds). */ +#define NEXT_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(30000) /**< Time between each call to sd_ble_gap_conn_param_update after the first call (30 seconds). */ +#define MAX_CONN_PARAMS_UPDATE_COUNT 3 /**< Number of attempts before giving up the connection parameter negotiation. */ + +#define SECURITY_REQUEST_DELAY APP_TIMER_TICKS(4000) /**< Delay after connection until security request is sent, if necessary (ticks). */ + +#define SEC_PARAM_TIMEOUT 30 /**< Time-out for pairing request or security request (in seconds). */ +#define SEC_PARAM_BOND 1 /**< Perform bonding. */ +#define SEC_PARAM_MITM 0 /**< Man In The Middle protection requirement. */ +#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 /**< I/O capabilities. */ +#define SEC_PARAM_OOB 0 /**< Out Of Band data availability. */ +#define SEC_PARAM_MIN_KEY_SIZE 7 /**< Minimum encryption key size. */ +#define SEC_PARAM_MAX_KEY_SIZE 16 /**< Maximum encryption key size. */ + +#define SCHED_MAX_EVENT_DATA_SIZE APP_TIMER_SCHED_EVENT_DATA_SIZE /**< Maximum size of scheduler events. Note that scheduler BLE stack events do not contain any data, as the events are being pulled from the stack in the event handler. */ +#ifdef SVCALL_AS_NORMAL_FUNCTION +#define SCHED_QUEUE_SIZE 20 /**< Maximum number of events in the scheduler queue. More is needed in case of Serialization. */ +#else +#define SCHED_QUEUE_SIZE 10 /**< Maximum number of events in the scheduler queue. */ +#endif + +#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_sec_req_timer_id); /**< Security request timer. */ +BLE_CTS_C_DEF(m_cts_c); /**< Current Time service instance. */ +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. */ +BLE_DB_DISCOVERY_DEF(m_ble_db_discovery); /**< DB discovery module instance. */ + +static pm_peer_id_t m_peer_id; /**< Device reference handle to the current bonded central. */ +static uint16_t m_cur_conn_handle = BLE_CONN_HANDLE_INVALID; /**< Handle of the current connection. */ + +static pm_peer_id_t m_whitelist_peers[BLE_GAP_WHITELIST_ADDR_MAX_COUNT]; /**< List of peers currently in the whitelist. */ +static uint32_t m_whitelist_peer_cnt; /**< Number of peers currently in the whitelist. */ + +static ble_uuid_t m_adv_uuids[] = {{BLE_UUID_CURRENT_TIME_SERVICE, BLE_UUID_TYPE_BLE}}; + +static char const * day_of_week[] = +{ + "Unknown", + "Monday", + "Tuesday", + "Wednesday", + "Thursday", + "Friday", + "Saturday", + "Sunday" +}; + +static char const * month_of_year[] = +{ + "Unknown", + "January", + "February", + "March", + "April", + "May", + "June", + "July", + "August", + "September", + "October", + "November", + "December" +}; + + +/**@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 Fetch the list of peer manager peer IDs. + * + * @param[inout] p_peers The buffer where to store the list of peer IDs. + * @param[inout] p_size In: The size of the @p p_peers buffer. + * Out: The number of peers copied in the buffer. + */ +static void peer_list_get(pm_peer_id_t * p_peers, uint32_t * p_size) +{ + pm_peer_id_t peer_id; + uint32_t peers_to_copy; + + peers_to_copy = (*p_size < BLE_GAP_WHITELIST_ADDR_MAX_COUNT) ? + *p_size : BLE_GAP_WHITELIST_ADDR_MAX_COUNT; + + peer_id = pm_next_peer_id_get(PM_PEER_ID_INVALID); + *p_size = 0; + + while ((peer_id != PM_PEER_ID_INVALID) && (peers_to_copy--)) + { + p_peers[(*p_size)++] = peer_id; + peer_id = pm_next_peer_id_get(peer_id); + } +} + + +/**@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 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 + { + ret_code_t ret; + + memset(m_whitelist_peers, PM_PEER_ID_INVALID, sizeof(m_whitelist_peers)); + m_whitelist_peer_cnt = (sizeof(m_whitelist_peers) / sizeof(pm_peer_id_t)); + + peer_list_get(m_whitelist_peers, &m_whitelist_peer_cnt); + + ret = pm_whitelist_set(m_whitelist_peers, m_whitelist_peer_cnt); + APP_ERROR_CHECK(ret); + + // Setup the device identies list. + // Some SoftDevices do not support this feature. + ret = pm_device_identities_list_set(m_whitelist_peers, m_whitelist_peer_cnt); + if (ret != NRF_ERROR_NOT_SUPPORTED) + { + APP_ERROR_CHECK(ret); + } + + ret = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST); + APP_ERROR_CHECK(ret); + } +} + + +/**@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."); + err_code = pm_peer_rank_highest(p_evt->peer_id); + if (err_code != NRF_ERROR_BUSY) + { + APP_ERROR_CHECK(err_code); + } + } 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); + + m_peer_id = p_evt->peer_id; + + // Discover peer's services. + err_code = ble_db_discovery_start(&m_ble_db_discovery, p_evt->conn_handle); + APP_ERROR_CHECK(err_code); + + if (p_evt->params.conn_sec_succeeded.procedure == PM_CONN_SEC_PROCEDURE_BONDING) + { + err_code = pm_peer_rank_highest(p_evt->peer_id); + if (err_code != NRF_ERROR_BUSY) + { + APP_ERROR_CHECK(err_code); + } + } + } 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_SUCCEEDED: + { + // Note: You should check on what kind of white list policy your application should use. + if ( p_evt->params.peer_data_update_succeeded.flash_changed + && (p_evt->params.peer_data_update_succeeded.data_id == PM_PEER_DATA_ID_BONDING)) + { + NRF_LOG_DEBUG("New Bond, add the peer to the whitelist if possible"); + NRF_LOG_DEBUG("\tm_whitelist_peer_cnt %d, MAX_PEERS_WLIST %d", + m_whitelist_peer_cnt + 1, + BLE_GAP_WHITELIST_ADDR_MAX_COUNT); + + if (m_whitelist_peer_cnt < BLE_GAP_WHITELIST_ADDR_MAX_COUNT) + { + // Bonded to a new peer, add it to the whitelist. + m_whitelist_peers[m_whitelist_peer_cnt++] = m_peer_id; + + // The whitelist has been modified, update it in the Peer Manager. + err_code = pm_device_identities_list_set(m_whitelist_peers, m_whitelist_peer_cnt); + if (err_code != NRF_ERROR_NOT_SUPPORTED) + { + APP_ERROR_CHECK(err_code); + } + + err_code = pm_whitelist_set(m_whitelist_peers, m_whitelist_peer_cnt); + APP_ERROR_CHECK(err_code); + } + } + } 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_DELETE_SUCCEEDED: + case PM_EVT_LOCAL_DB_CACHE_APPLIED: + case PM_EVT_LOCAL_DB_CACHE_APPLY_FAILED: + case PM_EVT_SERVICE_CHANGED_IND_SENT: + case PM_EVT_SERVICE_CHANGED_IND_CONFIRMED: + default: + break; + } +} + + +/**@brief Function for handling the Current Time Service errors. + * + * @param[in] nrf_error Error code containing information about what went wrong. + */ +static void current_time_error_handler(uint32_t nrf_error) +{ + APP_ERROR_HANDLER(nrf_error); +} + + +/**@brief Function for handling the security request timer time-out. + * + * @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 time-out handler. + */ +static void sec_req_timeout_handler(void * p_context) +{ + ret_code_t err_code; + pm_conn_sec_status_t status; + + if (m_cur_conn_handle != BLE_CONN_HANDLE_INVALID) + { + err_code = pm_conn_sec_status_get(m_cur_conn_handle, &status); + APP_ERROR_CHECK(err_code); + + // If the link is still not secured by the peer, initiate security procedure. + if (!status.encrypted) + { + err_code = pm_conn_secure(m_cur_conn_handle, false); + APP_ERROR_CHECK(err_code); + } + } +} + + +/**@brief Function for handling the Current Time Service errors. + * + * @param[in] p_evt Event received from the Current Time Service client. + */ +static void current_time_print(ble_cts_c_evt_t * p_evt) +{ + NRF_LOG_INFO("\r\nCurrent Time:"); + NRF_LOG_INFO("\r\nDate:"); + + NRF_LOG_INFO("\tDay of week %s", (uint32_t)day_of_week[p_evt-> + params. + current_time. + exact_time_256. + day_date_time. + day_of_week]); + + if (p_evt->params.current_time.exact_time_256.day_date_time.date_time.day == 0) + { + NRF_LOG_INFO("\tDay of month Unknown"); + } + else + { + NRF_LOG_INFO("\tDay of month %i", + p_evt->params.current_time.exact_time_256.day_date_time.date_time.day); + } + + NRF_LOG_INFO("\tMonth of year %s", + (uint32_t)month_of_year[p_evt->params.current_time.exact_time_256.day_date_time.date_time.month]); + if (p_evt->params.current_time.exact_time_256.day_date_time.date_time.year == 0) + { + NRF_LOG_INFO("\tYear Unknown"); + } + else + { + NRF_LOG_INFO("\tYear %i", + p_evt->params.current_time.exact_time_256.day_date_time.date_time.year); + } + NRF_LOG_INFO("\r\nTime:"); + NRF_LOG_INFO("\tHours %i", + p_evt->params.current_time.exact_time_256.day_date_time.date_time.hours); + NRF_LOG_INFO("\tMinutes %i", + p_evt->params.current_time.exact_time_256.day_date_time.date_time.minutes); + NRF_LOG_INFO("\tSeconds %i", + p_evt->params.current_time.exact_time_256.day_date_time.date_time.seconds); + NRF_LOG_INFO("\tFractions %i/256 of a second", + p_evt->params.current_time.exact_time_256.fractions256); + + NRF_LOG_INFO("\r\nAdjust reason:\r"); + NRF_LOG_INFO("\tDaylight savings %x", + p_evt->params.current_time.adjust_reason.change_of_daylight_savings_time); + NRF_LOG_INFO("\tTime zone %x", + p_evt->params.current_time.adjust_reason.change_of_time_zone); + NRF_LOG_INFO("\tExternal update %x", + p_evt->params.current_time.adjust_reason.external_reference_time_update); + NRF_LOG_INFO("\tManual update %x", + p_evt->params.current_time.adjust_reason.manual_time_update); +} + + +/**@brief Function for the timer initialization. + * + * @details Initializes the timer module. + */ +static void timers_init(void) +{ + ret_code_t err_code; + + err_code = app_timer_init(); + 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 handling the Current Time Service client events. + * + * @details This function will be called for all events in the Current Time Service client that + * are passed to the application. + * + * @param[in] p_evt Event received from the Current Time Service client. + */ +static void on_cts_c_evt(ble_cts_c_t * p_cts, ble_cts_c_evt_t * p_evt) +{ + ret_code_t err_code; + + switch (p_evt->evt_type) + { + case BLE_CTS_C_EVT_DISCOVERY_COMPLETE: + NRF_LOG_INFO("Current Time Service discovered on server."); + err_code = ble_cts_c_handles_assign(&m_cts_c, + p_evt->conn_handle, + &p_evt->params.char_handles); + APP_ERROR_CHECK(err_code); + break; + + case BLE_CTS_C_EVT_DISCOVERY_FAILED: + NRF_LOG_INFO("Current Time Service not found on server. "); + // CTS not found in this case we just disconnect. There is no reason to stay + // in the connection for this simple app since it all wants is to interact with CT + if (p_evt->conn_handle != BLE_CONN_HANDLE_INVALID) + { + err_code = sd_ble_gap_disconnect(p_evt->conn_handle, + BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION); + APP_ERROR_CHECK(err_code); + } + break; + + case BLE_CTS_C_EVT_DISCONN_COMPLETE: + NRF_LOG_INFO("Disconnect Complete."); + break; + + case BLE_CTS_C_EVT_CURRENT_TIME: + NRF_LOG_INFO("Current Time received."); + current_time_print(p_evt); + break; + + case BLE_CTS_C_EVT_INVALID_TIME: + NRF_LOG_INFO("Invalid Time received."); + break; + + default: + break; + } +} + + +/**@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); + + 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 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. + */ +static void services_init(void) +{ + ret_code_t err_code; + ble_cts_c_init_t cts_init = {0}; + nrf_ble_qwr_init_t qwr_init = {0}; + + // 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 CTS. + cts_init.evt_handler = on_cts_c_evt; + cts_init.error_handler = current_time_error_handler; + err_code = ble_cts_c_init(&m_cts_c, &cts_init); + 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 that + * 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_cur_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 handling Database Discovery events. + * + * @details This function is a callback function to handle events from the database discovery module. + * Depending on the UUIDs that are discovered, this function should forward the events + * to their respective service instances. + * + * @param[in] p_event Pointer to the database discovery event. + */ +static void db_disc_handler(ble_db_discovery_evt_t * p_evt) +{ + ble_cts_c_on_db_disc_evt(&m_cts_c, p_evt); +} + + +/**@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 = 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_SLOW: + NRF_LOG_INFO("Slow advertising"); + err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING_SLOW); + APP_ERROR_CHECK(err_code); + break; + + case BLE_ADV_EVT_FAST_WHITELIST: + NRF_LOG_INFO("Fast advertising with WhiteList"); + err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING_WHITELIST); + APP_ERROR_CHECK(err_code); + break; + + case BLE_ADV_EVT_SLOW_WHITELIST: + NRF_LOG_INFO("Slow advertising with WhiteList"); + err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING_WHITELIST); + APP_ERROR_CHECK(err_code); + err_code = ble_advertising_restart_without_whitelist(&m_advertising); + APP_ERROR_CHECK(err_code); + break; + + case BLE_ADV_EVT_IDLE: + sleep_mode_enter(); + break; + + case BLE_ADV_EVT_WHITELIST_REQUEST: + { + ble_gap_addr_t whitelist_addrs[BLE_GAP_WHITELIST_ADDR_MAX_COUNT]; + ble_gap_irk_t whitelist_irks[BLE_GAP_WHITELIST_ADDR_MAX_COUNT]; + uint32_t addr_cnt = BLE_GAP_WHITELIST_ADDR_MAX_COUNT; + uint32_t irk_cnt = BLE_GAP_WHITELIST_ADDR_MAX_COUNT; + + err_code = pm_whitelist_get(whitelist_addrs, &addr_cnt, + whitelist_irks, &irk_cnt); + APP_ERROR_CHECK(err_code); + NRF_LOG_DEBUG("pm_whitelist_get returns %d addr in whitelist and %d irk whitelist", + addr_cnt, + irk_cnt); + + // Apply the whitelist. + err_code = ble_advertising_whitelist_reply(&m_advertising, + whitelist_addrs, + addr_cnt, + whitelist_irks, + irk_cnt); + APP_ERROR_CHECK(err_code); + } + 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) +{ + ret_code_t err_code; + + 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_cur_conn_handle = p_ble_evt->evt.gap_evt.conn_handle; + err_code = nrf_ble_qwr_conn_handle_assign(&m_qwr, m_cur_conn_handle); + APP_ERROR_CHECK(err_code); + err_code = app_timer_start(m_sec_req_timer_id, SECURITY_REQUEST_DELAY, NULL); + APP_ERROR_CHECK(err_code); + break; + + case BLE_GAP_EVT_DISCONNECTED: + NRF_LOG_INFO("Disconnected."); + m_cur_conn_handle = BLE_CONN_HANDLE_INVALID; + if (p_ble_evt->evt.gap_evt.conn_handle == m_cts_c.conn_handle) + { + m_cts_c.conn_handle = BLE_CONN_HANDLE_INVALID; + } + break; // BLE_GAP_EVT_DISCONNECTED + + 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 handling events from the BSP module. + * + * @param[in] event Event generated by button press. + */ +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_cur_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_cts_c.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_cts_c.conn_handle != BLE_CONN_HANDLE_INVALID) + { + err_code = ble_cts_c_current_time_read(&m_cts_c); + if (err_code == NRF_ERROR_NOT_FOUND) + { + NRF_LOG_INFO("Current Time Service is not discovered."); + } + } + 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 the Event Scheduler initialization. + */ +static void scheduler_init(void) +{ + APP_SCHED_INIT(SCHED_MAX_EVENT_DATA_SIZE, SCHED_QUEUE_SIZE); +} + + +/**@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 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 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() +{ + 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_LIMITED_DISC_MODE; + init.advdata.uuids_solicited.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]); + init.advdata.uuids_solicited.p_uuids = m_adv_uuids; + + init.config.ble_adv_whitelist_enabled = true; + init.config.ble_adv_fast_enabled = true; + init.config.ble_adv_fast_interval = APP_ADV_FAST_INTERVAL; + init.config.ble_adv_fast_timeout = APP_ADV_FAST_DURATION; + init.config.ble_adv_slow_enabled = true; + init.config.ble_adv_slow_interval = APP_ADV_SLOW_INTERVAL; + init.config.ble_adv_slow_timeout = APP_ADV_SLOW_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 Database discovery collector initialization. + */ +static void db_discovery_init(void) +{ + ret_code_t err_code = ble_db_discovery_init(db_disc_handler); + APP_ERROR_CHECK(err_code); +} + + +/**@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) +{ + app_sched_execute(); + if (NRF_LOG_PROCESS() == false) + { + nrf_pwr_mgmt_run(); + } +} + + +/**@brief Function for application main entry. + */ +int main(void) +{ + bool erase_bonds; + + // Initialize. + log_init(); + timers_init(); + buttons_leds_init(&erase_bonds); + scheduler_init(); + power_management_init(); + ble_stack_init(); + gap_params_init(); + gatt_init(); + db_discovery_init(); + advertising_init(); + peer_manager_init(); + services_init(); + conn_params_init(); + + // Start execution. + NRF_LOG_INFO("Current Time service client started."); + + advertising_start(erase_bonds); + + // Enter main loop. + for (;;) + { + idle_state_handle(); + } +} + + +/** + * @} + */ |