/** * Copyright (c) 2014 - 2021, 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_uart_over_ble_main main.c * @{ * @ingroup ble_sdk_app_nus_eval * @brief UART over BLE application main file. * * This file contains the source code for a sample application that uses the * Nordic UART service. This application uses the @ref srvlib_conn_params * module. */ #include #include #include "app_scheduler.h" #include "app_timer.h" #include "app_uart.h" #include "app_util_platform.h" #include "ble_advdata.h" #include "ble_advertising.h" #include "ble_conn_params.h" #include "ble_hci.h" #include "ble_nus.h" #include "bsp_btn_ble.h" #include "nordic_common.h" #include "nrf.h" #include "nrf_ble_gatt.h" #include "nrf_ble_qwr.h" #include "nrf_pwr_mgmt.h" #include "nrf_sdh.h" #include "nrf_sdh_ble.h" #include "nrf_sdh_soc.h" #include "peer_manager.h" #include "peer_manager_handler.h" #if defined(UART_PRESENT) #include "nrf_uart.h" #endif #if defined(UARTE_PRESENT) #include "nrf_uarte.h" #endif #include "nrf_log.h" #include "nrf_log_ctrl.h" #include "nrf_log_default_backends.h" #define APP_BLE_CONN_CFG_TAG \ 1 /**< A tag identifying the SoftDevice BLE configuration. */ #define DEVICE_NAME \ "Trezor" /**< Name of device. Will be included in the advertising data. \ */ #define NUS_SERVICE_UUID_TYPE \ BLE_UUID_TYPE_VENDOR_BEGIN /**< UUID type for the Nordic UART Service \ (vendor specific). */ #define APP_BLE_OBSERVER_PRIO \ 3 /**< Application's BLE observer priority. You shouldn't need to modify \ this value. */ #define APP_ADV_INTERVAL \ 64 /**< The advertising interval (in units of 0.625 ms. This value \ corresponds to 40 ms). */ #define APP_ADV_DURATION \ 18000 /**< The advertising duration (180 seconds) in units of 10 \ milliseconds. */ #define MIN_CONN_INTERVAL \ MSEC_TO_UNITS( \ 20, UNIT_1_25_MS) /**< Minimum acceptable connection interval (20 ms), \ Connection interval uses 1.25 ms units. */ #define MAX_CONN_INTERVAL \ MSEC_TO_UNITS( \ 75, UNIT_1_25_MS) /**< Maximum acceptable connection interval (75 ms), \ Connection interval uses 1.25 ms units. */ #define SLAVE_LATENCY 0 /**< Slave latency. */ #define CONN_SUP_TIMEOUT \ MSEC_TO_UNITS(4000, \ UNIT_10_MS) /**< Connection supervisory timeout (4 seconds), \ Supervision Timeout uses 10 ms units. */ #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 DEAD_BEEF \ 0xDEADBEEF /**< Value used as error code on stack dump, can be used to \ identify stack location on stack unwind. */ #define UART_TX_BUF_SIZE 256 /**< UART TX buffer size. */ #define UART_RX_BUF_SIZE 256 /**< UART RX buffer size. */ BLE_NUS_DEF(m_nus, NRF_SDH_BLE_TOTAL_LINK_COUNT); /**< BLE NUS 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. */ static pm_peer_id_t m_peer_id; /**< Device reference handle to the current bonded central. */ static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID; /**< Handle of the current connection. */ static uint16_t m_ble_nus_max_data_len = BLE_GATT_ATT_MTU_DEFAULT - 3; /**< Maximum length of data (in bytes) that can be transmitted to the peer by the Nordic UART service module. */ static ble_uuid_t m_adv_uuids[] = /**< Universally unique service identifier. */ {{BLE_UUID_NUS_SERVICE, NUS_SERVICE_UUID_TYPE}}; static uint8_t m_uart_rx_data[BLE_NUS_MAX_DATA_LEN]; static bool m_uart_rx_data_ready_internal = false; /**@brief Function for assert macro callback. * * @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 analyse 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] p_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 initializing the timer module. */ static void timers_init(void) { ret_code_t err_code = app_timer_init(); APP_ERROR_CHECK(err_code); } /**@brief Function for the GAP initialization. * * @details This function will set up all the necessary GAP (Generic Access * Profile) parameters of the device. It also sets the permissions and * appearance. */ 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_UNKNOWN); 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 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 handling the data from the Nordic UART Service. * * @details This function will process the data received from the Nordic UART * BLE Service and send it to the UART module. * * @param[in] p_evt Nordic UART Service event. */ /**@snippet [Handling the data received over BLE] */ static void nus_data_handler(ble_nus_evt_t *p_evt) { if (p_evt->type == BLE_NUS_EVT_RX_DATA) { uint32_t err_code; NRF_LOG_DEBUG("Received data from BLE NUS. Writing data on UART."); NRF_LOG_HEXDUMP_DEBUG(p_evt->params.rx_data.p_data, p_evt->params.rx_data.length); if (p_evt->params.rx_data.length != 64) { return; } app_uart_put(0xA1); // external message app_uart_put(0x00); // len - HI app_uart_put(0x44); // len - LO for (uint32_t i = 0; i < p_evt->params.rx_data.length; i++) { do { err_code = app_uart_put(p_evt->params.rx_data.p_data[i]); if ((err_code != NRF_SUCCESS) && (err_code != NRF_ERROR_BUSY)) { NRF_LOG_ERROR("Failed receiving NUS message. Error 0x%x. ", err_code); APP_ERROR_CHECK(err_code); } } while (err_code == NRF_ERROR_BUSY); } app_uart_put(0x55); // EOM } } /**@snippet [Handling the data received over BLE] */ /**@brief Function for initializing services that will be used by the * application. */ static void services_init(void) { uint32_t err_code; ble_nus_init_t nus_init; 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 NUS. memset(&nus_init, 0, sizeof(nus_init)); nus_init.data_handler = nus_data_handler; err_code = ble_nus_init(&m_nus, &nus_init); APP_ERROR_CHECK(err_code); } /**@brief Function for handling errors from the Connection Parameters module. * * @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_PARAMS_UPDATE_COUNT; cp_init.start_on_notify_cccd_handle = BLE_GATT_HANDLE_INVALID; cp_init.disconnect_on_fail = false; cp_init.evt_handler = NULL; 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 setting filtered device identities. * * @param[in] skip Filter passed to @ref pm_peer_id_list. */ static void identities_set(pm_peer_id_list_skip_t skip) { pm_peer_id_t peer_ids[BLE_GAP_DEVICE_IDENTITIES_MAX_COUNT]; uint32_t peer_id_count = BLE_GAP_DEVICE_IDENTITIES_MAX_COUNT; ret_code_t err_code = pm_peer_id_list(peer_ids, &peer_id_count, PM_PEER_ID_INVALID, skip); APP_ERROR_CHECK(err_code); err_code = pm_device_identities_list_set(peer_ids, peer_id_count); 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) { uint32_t err_code; switch (ble_adv_evt) { case BLE_ADV_EVT_DIRECTED_HIGH_DUTY: NRF_LOG_INFO("High Duty Directed advertising."); err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING_DIRECTED); APP_ERROR_CHECK(err_code); break; case BLE_ADV_EVT_DIRECTED: NRF_LOG_INFO("Directed advertising."); err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING_DIRECTED); APP_ERROR_CHECK(err_code); break; 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); 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); // Set the correct identities list (no excluding peers with no Central // Address Resolution). identities_set(PM_PEER_ID_LIST_SKIP_NO_IRK); // 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; // BLE_ADV_EVT_WHITELIST_REQUEST case BLE_ADV_EVT_PEER_ADDR_REQUEST: { pm_peer_data_bonding_t peer_bonding_data; // Only Give peer address if we have a handle to the bonded peer. if (m_peer_id != PM_PEER_ID_INVALID) { err_code = pm_peer_data_bonding_load(m_peer_id, &peer_bonding_data); if (err_code != NRF_ERROR_NOT_FOUND) { APP_ERROR_CHECK(err_code); // Manipulate identities to exclude peers with no Central Address // Resolution. identities_set(PM_PEER_ID_LIST_SKIP_ALL); ble_gap_addr_t *p_peer_addr = &(peer_bonding_data.peer_ble_id.id_addr_info); err_code = ble_advertising_peer_addr_reply(&m_advertising, p_peer_addr); APP_ERROR_CHECK(err_code); } } } break; // BLE_ADV_EVT_PEER_ADDR_REQUEST 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; 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"); // LED indication will be changed when advertising starts. m_conn_handle = BLE_CONN_HANDLE_INVALID; 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_GAP_EVT_AUTH_KEY_REQUEST: { NRF_LOG_INFO("Key requested."); uint8_t tx_data[] = { 0xA0, // internal message 0x00, // length - HI 0x0D, // length - LO 0x3F, 0x23, 0x23, 0x1F, 0x43, 0x00, 0x00, 0x00, 0x00, 0x55, // EOM }; for (uint32_t i = 0; i < sizeof(tx_data); i++) { do { err_code = app_uart_put(tx_data[i]); if ((err_code != NRF_SUCCESS) && (err_code != NRF_ERROR_BUSY)) { NRF_LOG_ERROR("Failed receiving NUS message. Error 0x%x. ", err_code); APP_ERROR_CHECK(err_code); } } while (err_code == NRF_ERROR_BUSY); } uint8_t p_key[6] = {0}; while (!m_uart_rx_data_ready_internal) ; for (int i = 0; i < 6; i++) { p_key[i] = m_uart_rx_data[i + 11]; } m_uart_rx_data_ready_internal = false; NRF_LOG_INFO("Received data: %c", p_key); err_code = sd_ble_gap_auth_key_reply(p_ble_evt->evt.gap_evt.conn_handle, BLE_GAP_AUTH_KEY_TYPE_PASSKEY, p_key); // APP_ERROR_CHECK(err_code); break; } case BLE_GATTC_EVT_TIMEOUT: // Disconnect on GATT Client timeout event. 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. 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 the SoftDevice initialization. * * @details This function 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 GATT library. */ void gatt_evt_handler(nrf_ble_gatt_t *p_gatt, nrf_ble_gatt_evt_t const *p_evt) { if ((m_conn_handle == p_evt->conn_handle) && (p_evt->evt_id == NRF_BLE_GATT_EVT_ATT_MTU_UPDATED)) { m_ble_nus_max_data_len = p_evt->params.att_mtu_effective - OPCODE_LENGTH - HANDLE_LENGTH; NRF_LOG_INFO("Data len is set to 0x%X(%d)", m_ble_nus_max_data_len, m_ble_nus_max_data_len); } NRF_LOG_DEBUG("ATT MTU exchange completed. central 0x%x peripheral 0x%x", p_gatt->att_mtu_desired_central, p_gatt->att_mtu_desired_periph); } /**@brief Function for initializing the GATT library. */ void gatt_init(void) { ret_code_t err_code; err_code = nrf_ble_gatt_init(&m_gatt, gatt_evt_handler); APP_ERROR_CHECK(err_code); err_code = nrf_ble_gatt_att_mtu_periph_set(&m_gatt, NRF_SDH_BLE_GATT_MAX_MTU_SIZE); APP_ERROR_CHECK(err_code); } /**@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) { uint32_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; default: break; } } /**@brief Function for handling app_uart events. * * @details This function will receive a single character from the app_uart * module and append it to a string. The string will be be sent over BLE when * the last character received was a 'new line' '\n' (hex 0x0A) or if the string * has reached the maximum data length. */ /**@snippet [Handling the data received over UART] */ void uart_event_handle(app_uart_evt_t *p_event) { static uint8_t index = 0; static uint8_t external = 0; static uint16_t len = 0; uint32_t err_code; uint8_t rx_byte = 0; switch (p_event->evt_type) { case APP_UART_DATA_READY: while (app_uart_get(&rx_byte) == NRF_SUCCESS) { if (index == 0) { // decide destination if (rx_byte == 0xA0) { // internal message external = 0; index += 1; continue; } else if (rx_byte == 0xA1) { // external message external = 1; index += 1; continue; } else { // unknown message continue; } } if (index == 1) { // len HI len = rx_byte << 8; index += 1; continue; } if (index == 2) { // len LO len |= rx_byte; index += 1; continue; } if (index < (len - 1)) { // command m_uart_rx_data[index - 3] = rx_byte; index += 1; continue; } if (index >= (len - 1)) { { if (rx_byte == 0x55) { if (external) { NRF_LOG_DEBUG("Ready to send data over BLE NUS"); NRF_LOG_HEXDUMP_DEBUG(m_uart_rx_data, index); do { uint16_t length = (uint16_t)len - 4; err_code = ble_nus_data_send(&m_nus, m_uart_rx_data, &length, m_conn_handle); if ((err_code != NRF_ERROR_INVALID_STATE) && (err_code != NRF_ERROR_RESOURCES) && (err_code != NRF_ERROR_NOT_FOUND)) { APP_ERROR_CHECK(err_code); } } while (err_code == NRF_ERROR_RESOURCES); } else { m_uart_rx_data_ready_internal = true; } } index = 0; } } } break; // case APP_UART_COMMUNICATION_ERROR: // APP_ERROR_HANDLER(p_event->data.error_communication); // break; // // case APP_UART_FIFO_ERROR: // APP_ERROR_HANDLER(p_event->data.error_code); // break; default: break; } } /**@snippet [Handling the data received over UART] */ /**@brief Function for initializing the UART module. */ /**@snippet [UART Initialization] */ static void uart_init(void) { uint32_t err_code; app_uart_comm_params_t const comm_params = { .rx_pin_no = RX_PIN_NUMBER, .tx_pin_no = TX_PIN_NUMBER, .rts_pin_no = RTS_PIN_NUMBER, .cts_pin_no = CTS_PIN_NUMBER, .flow_control = APP_UART_FLOW_CONTROL_ENABLED, .use_parity = false, #if defined(UART_PRESENT) .baud_rate = NRF_UART_BAUDRATE_1000000 #else .baud_rate = NRF_UARTE_BAUDRATE_1000000 #endif }; APP_UART_FIFO_INIT(&comm_params, UART_RX_BUF_SIZE, UART_TX_BUF_SIZE, uart_event_handle, APP_IRQ_PRIORITY_LOWEST, err_code); APP_ERROR_CHECK(err_code); } /**@snippet [UART Initialization] */ /**@brief Function for initializing the Advertising functionality. */ // static void advertising_init(void) { // uint32_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 = false; // init.advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE; // // init.srdata.uuids_complete.uuid_cnt = // sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]); // init.srdata.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); //} static void advertising_init(void) { uint32_t err_code; uint8_t adv_flags; ble_advertising_init_t init; memset(&init, 0, sizeof(init)); adv_flags = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE; init.advdata.name_type = BLE_ADVDATA_FULL_NAME; init.advdata.include_appearance = true; init.advdata.flags = adv_flags; 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_whitelist_enabled = true; init.config.ble_adv_directed_high_duty_enabled = true; init.config.ble_adv_directed_enabled = false; init.config.ble_adv_directed_interval = 0; init.config.ble_adv_directed_timeout = 0; 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) { bsp_event_t startup_event; uint32_t 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) { app_sched_execute(); if (NRF_LOG_PROCESS() == false) { nrf_pwr_mgmt_run(); } } /**@brief Function for setting filtered whitelist. * * @param[in] skip Filter passed to @ref pm_peer_id_list. */ static void whitelist_set(pm_peer_id_list_skip_t skip) { pm_peer_id_t peer_ids[BLE_GAP_WHITELIST_ADDR_MAX_COUNT]; uint32_t peer_id_count = BLE_GAP_WHITELIST_ADDR_MAX_COUNT; ret_code_t err_code = pm_peer_id_list(peer_ids, &peer_id_count, PM_PEER_ID_INVALID, skip); APP_ERROR_CHECK(err_code); NRF_LOG_INFO("\tm_whitelist_peer_cnt %d, MAX_PEERS_WLIST %d", peer_id_count + 1, BLE_GAP_WHITELIST_ADDR_MAX_COUNT); err_code = pm_whitelist_set(peer_ids, peer_id_count); 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); } static void advertising_start(bool erase_bonds) { if (erase_bonds == true) { delete_bonds(); // Advertising is started by PM_EVT_PEERS_DELETE_SUCCEEDED event. } else { whitelist_set(PM_PEER_ID_LIST_SKIP_NO_ID_ADDR); ret_code_t ret = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST); APP_ERROR_CHECK(ret); } } #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_KEYBOARD_DISPLAY /**< 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 SCHED_MAX_EVENT_DATA_SIZE \ APP_TIMER_SCHED_EVENT_DATA_SIZE /**< Maximum size of scheduler events. */ #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 /**@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) { pm_handler_on_pm_evt(p_evt); pm_handler_disconnect_on_sec_failure(p_evt); pm_handler_flash_clean(p_evt); switch (p_evt->evt_id) { case PM_EVT_CONN_SEC_SUCCEEDED: m_peer_id = p_evt->peer_id; break; case PM_EVT_PEERS_DELETE_SUCCEEDED: advertising_start(false); break; case PM_EVT_PEER_DATA_UPDATE_SUCCEEDED: 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_INFO("New Bond, add the peer to the whitelist if possible"); // Note: You should check on what kind of white list policy your // application should use. whitelist_set(PM_PEER_ID_LIST_SKIP_NO_ID_ADDR); } 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 Function for the Event Scheduler initialization. */ static void scheduler_init(void) { APP_SCHED_INIT(SCHED_MAX_EVENT_DATA_SIZE, SCHED_QUEUE_SIZE); } /**@brief Application main function. */ int main(void) { bool erase_bonds; // Initialize. uart_init(); log_init(); timers_init(); buttons_leds_init(&erase_bonds); power_management_init(); ble_stack_init(); scheduler_init(); gap_params_init(); gatt_init(); services_init(); advertising_init(); conn_params_init(); peer_manager_init(); // Start execution. advertising_start(true); // Enter main loop. for (;;) { idle_state_handle(); } } /** * @} */