/** * Copyright (c) 2017 - 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. * */ /** * @brief BLE Object Transfer Service client application main file. * * This file contains the source code for a sample Object Transfer Service client application. */ #include #include #include #include "nordic_common.h" #include "nrf_sdm.h" #include "ble.h" #include "ble_hci.h" #include "ble_db_discovery.h" #include "app_util.h" #include "app_error.h" #include "boards.h" #include "nrf_gpio.h" #include "nrf_ble_ots_c.h" #include "nrf_ble_ots_c_oacp.h" #include "nrf_ble_ots_c_l2cap.h" #include "app_util.h" #include "app_timer.h" #include "bsp.h" #include "bsp_btn_ble.h" #include "peer_manager.h" #include "fds.h" #include "nrf_fstorage.h" #include "ble_conn_state.h" #include "nrf_ble_gatt.h" #include "nrf_sdh.h" #include "nrf_sdh_ble.h" #include "nrf_sdh_soc.h" #include "ble_advdata.h" #include "nrf_pwr_mgmt.h" #include "nrf_log.h" #include "nrf_log_ctrl.h" #include "nrf_log_default_backends.h" #define APP_BLE_OBSERVER_PRIO 3 /**< Application's BLE observer priority. You shoulnd't need to modify this value. */ #define APP_SOC_OBSERVER_PRIO 1 /**< Applications' SoC observer priority. You shoulnd't need to modify this value. */ #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 SCAN_INTERVAL 0x00A0 /**< Determines scan interval in units of 0.625 millisecond. */ #define SCAN_WINDOW 0x0050 /**< Determines scan window in units of 0.625 millisecond. */ #define SCAN_DURATION 0x0000 /**< Duration of the scanning in units of 10 milliseconds. If set to 0x0000, scanning will continue until it is explicitly disabled. */ #define SCAN_DURATION_WITELIST 3000 /**< Duration of the scanning in units of 10 milliseconds. */ #define MIN_CONNECTION_INTERVAL MSEC_TO_UNITS(7.5, UNIT_1_25_MS) /**< Determines minimum connection interval in millisecond. */ #define MAX_CONNECTION_INTERVAL MSEC_TO_UNITS(30, UNIT_1_25_MS) /**< Determines maximum connection interval in millisecond. */ #define SLAVE_LATENCY 0 /**< Determines slave latency in counts of connection events. */ #define SUPERVISION_TIMEOUT MSEC_TO_UNITS(4000, UNIT_10_MS) /**< Determines supervision time-out in units of 10 millisecond. */ #define TARGET_UUID BLE_UUID_OTS_SERVICE /**< Service UUID that application is looking for. */ #define APP_BLE_CONN_CFG_TAG 1 /**< A tag identifying the SoftDevice BLE configuration. */ #define BLE_OTS_PSM 0x0025 /**< PSM used for L2CAP CoC for Object Transfer. This value is assigned by Bluetooth SIG for Object Transfer Specication.*/ #define OBJECT_SIZE 100 /**< Size of the local object. */ #define L2CAP_RX_MPS 60 /**< Size of L2CAP Rx MPS (must be at least BLE_L2CAP_MPS_MIN).*/ #define L2CAP_TX_MPS 40 /**< Size of L2CAP Tx MPS (must be at least BLE_L2CAP_MPS_MIN).*/ #define L2CAP_RX_MTU 30 /**< Rx L2CAP MTU size (must be at least BLE_L2CAP_MTU_MIN).*/ NRF_BLE_GATT_DEF(m_gatt); /**< GATT module instance. */ BLE_DB_DISCOVERY_DEF(m_db_disc); /**< DB Discovery module instance. */ NRF_BLE_OTS_C_DEF(m_ots_c); /**< Object transfer service client instance. */ static uint8_t m_object_rx[OBJECT_SIZE] = {0}; /**< An empty buffer for the data of an object, we can receive the object on the peer side into this buffer. */ static uint16_t m_conn_handle; /**< Current connection handle. */ static bool m_whitelist_disabled; /**< True if whitelist has been temporarily disabled. */ static bool m_memory_access_in_progress; /**< Flag to keep track of ongoing operations on persistent memory. */ static ble_gap_scan_params_t m_scan_param; /**< Scan parameters requested for scanning and connection. */ static uint8_t m_scan_buffer_data[BLE_GAP_SCAN_BUFFER_MIN]; /**< buffer where advertising reports will be stored by the SoftDevice. */ /**@brief Pointer to the buffer where advertising reports will be stored by the SoftDevice. */ static ble_data_t m_scan_buffer = { m_scan_buffer_data, BLE_GAP_SCAN_BUFFER_MIN }; static ble_data_t m_sdu_buf; static uint8_t m_object[OBJECT_SIZE] = { 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x31, 0x32, 0x33, 0x34 }; /**@brief String literals for the OACP result codes. Used for logging output. */ static const char * lit_request[] = { "RFU", "Create", "Delete", "Calculate Checksum", "Execute", "Read", "Write", "Abort", }; /**@brief String literals for the OACP result codes. Used for logging output. */ static const char * lit_result[] = { "RFU", "Success", "Op Code Not Supported", "Invalid Parameter", "Insufficient Resources", "Invalid Object", "Channel Unavailable", "Unsuported Type", "Procedure Not Permitted", "Object Locked", "Operation Failed" }; /** * @brief Connection parameters requested for connection. */ static ble_gap_conn_params_t const m_connection_param = { (uint16_t)MIN_CONNECTION_INTERVAL, // Minimum connection. (uint16_t)MAX_CONNECTION_INTERVAL, // Maximum connection. (uint16_t)SLAVE_LATENCY, // Slave latency. (uint16_t)SUPERVISION_TIMEOUT // Supervision time-out. }; static void scan_start(void); /**@brief 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] 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(0xDEADBEEF, line_num, p_file_name); } /**@brief Function for handling database discovery events. * * @details This function is 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 services. * * @param[in] p_event Pointer to the database discovery event. * */ static void db_disc_handler(ble_db_discovery_evt_t * p_evt) { nrf_ble_ots_c_on_db_disc_evt(&m_ots_c, p_evt); } /**@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."); } 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); } 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: { scan_start(); } 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 handling the advertising report BLE event. * * @param[in] p_adv_report Advertising report from the SoftDevice. */ static void on_adv_report(ble_gap_evt_adv_report_t const * p_adv_report) { ret_code_t err_code; ble_uuid_t target_uuid = {.uuid = TARGET_UUID, .type = BLE_UUID_TYPE_BLE}; if (ble_advdata_uuid_find(p_adv_report->data.p_data, p_adv_report->data.len, &target_uuid)) { // Stop scanning. err_code = bsp_indication_set(BSP_INDICATE_IDLE); APP_ERROR_CHECK(err_code); // Initiate connection. err_code = sd_ble_gap_connect(&p_adv_report->peer_addr, &m_scan_param, &m_connection_param, APP_BLE_CONN_CFG_TAG); m_whitelist_disabled = false; if (err_code != NRF_SUCCESS) { NRF_LOG_DEBUG("Connection Request Failed, reason 0x%x", err_code); } } else { err_code = sd_ble_gap_scan_start(NULL, &m_scan_buffer); 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 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; ble_gap_evt_t const * p_gap_evt = &p_ble_evt->evt.gap_evt; switch (p_ble_evt->header.evt_id) { case BLE_GAP_EVT_CONNECTED: { NRF_LOG_INFO("Peer Connected. "); // Discover peer's services. err_code = ble_db_discovery_start(&m_db_disc, p_ble_evt->evt.gap_evt.conn_handle); APP_ERROR_CHECK(err_code); err_code = bsp_indication_set(BSP_INDICATE_CONNECTED); APP_ERROR_CHECK(err_code); } break; case BLE_GAP_EVT_ADV_REPORT: { on_adv_report(&p_gap_evt->params.adv_report); } break; // BLE_GAP_EVT_ADV_REPORT case BLE_GAP_EVT_TIMEOUT: { if (p_gap_evt->params.timeout.src == BLE_GAP_TIMEOUT_SRC_SCAN) { NRF_LOG_INFO("Scan timed out."); scan_start(); } else if (p_gap_evt->params.timeout.src == BLE_GAP_TIMEOUT_SRC_CONN) { NRF_LOG_DEBUG("Connection Request timed out."); } } break; case BLE_GAP_EVT_CONN_PARAM_UPDATE_REQUEST: { // Accepting parameters requested by peer. err_code = sd_ble_gap_conn_param_update(p_gap_evt->conn_handle, &p_gap_evt->params.conn_param_update_request.conn_params); APP_ERROR_CHECK(err_code); } break; case BLE_GAP_EVT_DISCONNECTED: { NRF_LOG_INFO("Peer Disconnected."); if (ble_conn_state_central_conn_count() < NRF_SDH_BLE_CENTRAL_LINK_COUNT) { scan_start(); } } 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: break; } } /**@brief Function for handling the Application's system events. * * @param[in] sys_evt system event. * @param[in] p_context Unused. */ static void soc_evt_handler(uint32_t sys_evt, void * p_context) { switch (sys_evt) { case NRF_EVT_FLASH_OPERATION_SUCCESS: /* fall through */ case NRF_EVT_FLASH_OPERATION_ERROR: if (m_memory_access_in_progress) { m_memory_access_in_progress = false; scan_start(); } 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); 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); // Overwrite some of the default configurations for the BLE stack. ble_cfg_t ble_cfg; // Set l2cap channel configuration ble_cfg.conn_cfg.conn_cfg_tag = APP_BLE_CONN_CFG_TAG; ble_cfg.conn_cfg.params.l2cap_conn_cfg.rx_mps = L2CAP_RX_MPS; ble_cfg.conn_cfg.params.l2cap_conn_cfg.rx_queue_size = 1; ble_cfg.conn_cfg.params.l2cap_conn_cfg.tx_mps = L2CAP_TX_MPS; ble_cfg.conn_cfg.params.l2cap_conn_cfg.tx_queue_size = 1; ble_cfg.conn_cfg.params.l2cap_conn_cfg.ch_count = 1; err_code = sd_ble_cfg_set(BLE_CONN_CFG_L2CAP, &ble_cfg, ram_start); APP_ERROR_CHECK(err_code); // Enable BLE stack. err_code = nrf_sdh_ble_enable(&ram_start); APP_ERROR_CHECK(err_code); // Register handlers for BLE and SoC events. NRF_SDH_BLE_OBSERVER(m_ble_observer, APP_BLE_OBSERVER_PRIO, ble_evt_handler, NULL); NRF_SDH_SOC_OBSERVER(m_soc_observer, APP_SOC_OBSERVER_PRIO, soc_evt_handler, NULL); } /**@brief Function for disabling the use of whitelist for scanning. */ static void whitelist_disable(void) { if (!m_whitelist_disabled) { NRF_LOG_INFO("Whitelist temporarily disabled."); m_whitelist_disabled = true; (void) sd_ble_gap_scan_stop(); scan_start(); } } /**@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) { switch (event) { case BSP_EVENT_KEY_0: { ret_code_t err_code; err_code = nrf_ble_ots_c_oacp_write_object(&m_ots_c, 0, OBJECT_SIZE, 0); APP_ERROR_CHECK(err_code); NRF_LOG_INFO("Write object command sent to server Obejct Action Control Point."); } break; case BSP_EVENT_KEY_1: { ret_code_t err_code; NRF_LOG_INFO("Read the size of the selected object."); err_code = nrf_ble_ots_c_obj_size_read(&m_ots_c); APP_ERROR_CHECK(err_code); }break; case BSP_EVENT_SLEEP: sleep_mode_enter(); break; case BSP_EVENT_DISCONNECT: { ret_code_t err_code; 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: whitelist_disable(); break; default: break; } } static void print_feature(nrf_ble_ots_c_feature_t const * const p_feature) { if (p_feature->oacp_create == 1) { NRF_LOG_INFO("\tCreate OP Code Supported"); } if (p_feature->oacp_delete == 1) { NRF_LOG_INFO("\tDelete OP Code Supported"); } if (p_feature->oacp_crc == 1) { NRF_LOG_INFO("\tCalculate Checksum OP Code Supported."); } if (p_feature->oacp_execute == 1) { NRF_LOG_INFO("\tExecute OP Code Supported."); } if (p_feature->oacp_read == 1) { NRF_LOG_INFO("\tRead OP Code Supported."); } if (p_feature->oacp_write == 1) { NRF_LOG_INFO("\tWrite OP Code Supported."); } if (p_feature->oacp_append == 1) { NRF_LOG_INFO("\tAppend Additional Data to Objects Supported."); } if (p_feature->oacp_truncate == 1) { NRF_LOG_INFO("\tTruncation of Objects Supported."); } if (p_feature->oacp_patch == 1) { NRF_LOG_INFO("\tPatching of Objects Supported."); } if (p_feature->oacp_abort == 1) { NRF_LOG_INFO("\tAbort OP Code Supported."); } // PRINT OLCP FEATURES if (p_feature->olcp_goto == 1) { NRF_LOG_INFO("\tGoto OP Code Supported."); } if (p_feature->olcp_order == 1) { NRF_LOG_INFO("\tOrder OP Code Supported."); } if (p_feature->olcp_req_num == 1) { NRF_LOG_INFO("\tRequest Number OP Code Supported."); } if (p_feature->olcp_req_num == 1) { NRF_LOG_INFO("\tClear Marking OP Code Supported."); } NRF_LOG_INFO("\r\n"); } static void print_response(nrf_ble_ots_c_oacp_response_t * response) { NRF_LOG_INFO("Request OP Code: %s", (uint32_t)lit_request[response->request_op_code]); NRF_LOG_INFO("Result Code : %s", (uint32_t)lit_result[response->result_code]); } static bool peer_ready_for_object_write(nrf_ble_ots_c_evt_t const * const p_ots_c_evt) { if (p_ots_c_evt->params.response.request_op_code == NRF_BLE_OTS_C_OACP_PROC_WRITE && p_ots_c_evt->params.response.result_code == NRF_BLE_OTS_C_OACP_RES_SUCCESS) { return true; } return false; } static bool peer_ready_for_object_read(nrf_ble_ots_c_evt_t const * const p_ots_c_evt) { if (p_ots_c_evt->params.response.request_op_code == NRF_BLE_OTS_C_OACP_PROC_READ && p_ots_c_evt->params.response.result_code == NRF_BLE_OTS_C_OACP_RES_SUCCESS) { return true; } return false; } /**@brief Object Transfer Service event handler. */ static void ots_c_evt_handler(nrf_ble_ots_c_evt_t * p_ots_c_evt) { ret_code_t err_code; switch (p_ots_c_evt->evt_type) { case NRF_BLE_OTS_C_EVT_DISCOVERY_COMPLETE: { err_code = nrf_ble_ots_c_handles_assign(&m_ots_c, p_ots_c_evt->conn_handle, &p_ots_c_evt->params.handles); APP_ERROR_CHECK(err_code); NRF_LOG_INFO("Object Transfer Service discovered."); NRF_LOG_DEBUG("L2CAP channel setup."); ble_l2cap_ch_setup_params_t params; params.rx_params.rx_mps = L2CAP_RX_MPS; params.rx_params.rx_mtu = L2CAP_RX_MTU; params.rx_params.sdu_buf.p_data = NULL; params.le_psm = BLE_OTS_PSM; // Used when requesting setup of an L2CAP channel, ignored otherwise. params.status = 0; // Used when requesting setup of an L2CAP channel, ignored otherwise. uint16_t cid = BLE_L2CAP_CID_INVALID; err_code = sd_ble_l2cap_ch_setup(m_ots_c.conn_handle, &cid, ¶ms); APP_ERROR_CHECK(err_code); m_ots_c.local_cid = cid; // Set the local Channel ID of the Object Transfer Client Module. NRF_LOG_DEBUG("Read the features of the peer:"); err_code = nrf_ble_ots_c_feature_read(&m_ots_c); APP_ERROR_CHECK(err_code); } break; case NRF_BLE_OTS_C_EVT_FEATURE_READ_RESP: NRF_LOG_INFO("\r\n"); NRF_LOG_INFO("Supported features on the connected Server:"); print_feature(&p_ots_c_evt->params.feature); err_code = nrf_ble_ots_c_indication_enable(&m_ots_c, true); APP_ERROR_CHECK(err_code); NRF_LOG_INFO("Indications enabled."); break; case NRF_BLE_OTS_C_EVT_SIZE_READ_RESP: NRF_LOG_INFO("Selected object: current size %i, allocated size %i", p_ots_c_evt->params.size.current_size, p_ots_c_evt->params.size.allocated_size); if (p_ots_c_evt->params.size.current_size > 0) { if (p_ots_c_evt->params.size.current_size > OBJECT_SIZE) { p_ots_c_evt->params.size.current_size = OBJECT_SIZE; } NRF_LOG_INFO("Read %i bytes from the object.", p_ots_c_evt->params.size.current_size); err_code = nrf_ble_ots_c_oacp_read_object(&m_ots_c, 0, p_ots_c_evt->params.size.current_size); APP_ERROR_CHECK(err_code); } break; case NRF_BLE_OTS_C_EVT_OACP_RESP: NRF_LOG_INFO("Response received on Object Action Control Point."); print_response(&p_ots_c_evt->params.response); if (peer_ready_for_object_write(p_ots_c_evt)) { m_sdu_buf.p_data = m_object; m_sdu_buf.len = OBJECT_SIZE; err_code = nrf_ble_ots_c_l2cap_obj_send(&m_ots_c, &m_sdu_buf); APP_ERROR_CHECK(err_code); } if (peer_ready_for_object_read(p_ots_c_evt)) { m_sdu_buf.p_data = m_object_rx; m_sdu_buf.len = OBJECT_SIZE; err_code = nrf_ble_ots_c_l2cap_obj_receive(&m_ots_c, &m_sdu_buf); APP_ERROR_CHECK(err_code); } break; case NRF_BLE_OTS_C_EVT_DISCONN_COMPLETE: NRF_LOG_INFO("NRF_BLE_OTS_C_EVT_DISCONN_COMPLETE."); print_response(&p_ots_c_evt->params.response); break; case NRF_BLE_OTS_C_EVT_CHANNEL_RELEASED: NRF_LOG_INFO("NRF_BLE_OTS_C_EVT_CHANNEL_RELEASED."); break; case NRF_BLE_OTS_C_EVT_OBJ_READ: NRF_LOG_INFO("NRF_BLE_OTS_C_EVT_OBJ_READ."); break; default: break; } } /**@brief Function for filling an array with ascending and looping numbers from 0 to FF. * * @param[in] erase_bonds Indicates whether bonding information should be cleared from * persistent storage during initialization of the Peer Manager. */ void fill_array(uint8_t * data, uint32_t len) { for (uint32_t i = 0; i < len; i++) { data[i] = (uint8_t) i; } } /** * @brief Function for filling our object with numbers before sending it. */ void fill_current_object(void) { fill_array(m_object, OBJECT_SIZE); } /** * @brief initialization. */ static void ots_c_init(void) { fill_current_object(); nrf_ble_ots_c_init_t init; init.evt_handler = ots_c_evt_handler; ret_code_t err_code = nrf_ble_ots_c_init(&m_ots_c, &init); APP_ERROR_CHECK(err_code); } /**@brief Function for the Peer Manager initialization. * * @param[in] erase_bonds Indicates whether bonding information should be cleared from * persistent storage during initialization of the Peer Manager. */ static void peer_manager_init() { 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 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 Retrive a 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); } } static void whitelist_load() { ret_code_t ret; pm_peer_id_t peers[8]; uint32_t peer_cnt; memset(peers, PM_PEER_ID_INVALID, sizeof(peers)); peer_cnt = (sizeof(peers) / sizeof(pm_peer_id_t)); // Load all peers from flash and whitelist them. peer_list_get(peers, &peer_cnt); ret = pm_whitelist_set(peers, peer_cnt); APP_ERROR_CHECK(ret); // Setup the device identies list. // Some SoftDevices do not support this feature. ret = pm_device_identities_list_set(peers, peer_cnt); if (ret != NRF_ERROR_NOT_SUPPORTED) { APP_ERROR_CHECK(ret); } } /**@brief Function to start scanning. */ static void scan_start(void) { // If there is any pending write to flash, defer scanning until it completes. if (nrf_fstorage_is_busy(NULL)) { m_memory_access_in_progress = true; return; } // Whitelist buffers. ble_gap_addr_t whitelist_addrs[8]; ble_gap_irk_t whitelist_irks[8]; memset(whitelist_addrs, 0x00, sizeof(whitelist_addrs)); memset(whitelist_irks, 0x00, sizeof(whitelist_irks)); uint32_t addr_cnt = (sizeof(whitelist_addrs) / sizeof(ble_gap_addr_t)); uint32_t irk_cnt = (sizeof(whitelist_irks) / sizeof(ble_gap_irk_t)); // Reload the whitelist and whitelist all peers. whitelist_load(); ret_code_t ret; // Get the whitelist previously set using pm_whitelist_set(). ret = pm_whitelist_get(whitelist_addrs, &addr_cnt, whitelist_irks, &irk_cnt); m_scan_param.active = 0; m_scan_param.interval = SCAN_INTERVAL; m_scan_param.window = SCAN_WINDOW; if (((addr_cnt == 0) && (irk_cnt == 0)) || (m_whitelist_disabled)) { // Don't use whitelist. m_scan_param.timeout = SCAN_DURATION; m_scan_param.scan_phys = BLE_GAP_PHY_1MBPS; m_scan_param.filter_policy = BLE_GAP_SCAN_FP_ACCEPT_ALL; } else { // Use whitelist. m_scan_param.scan_phys = BLE_GAP_PHY_1MBPS; m_scan_param.filter_policy = BLE_GAP_SCAN_FP_WHITELIST; m_scan_param.timeout = SCAN_DURATION_WITELIST; } NRF_LOG_INFO("Starting scan."); ret = sd_ble_gap_scan_start(&m_scan_param, &m_scan_buffer); APP_ERROR_CHECK(ret); ret = bsp_indication_set(BSP_INDICATE_SCANNING); APP_ERROR_CHECK(ret); } /**@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 logging. */ 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 the timer. */ static void timer_init(void) { ret_code_t err_code = app_timer_init(); 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 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 Handle any pending log operation(s), then sleep until the next event occurs. */ static void idle_state_handle(void) { if (NRF_LOG_PROCESS() == false) { nrf_pwr_mgmt_run(); } } /**@brief Function for starting a scan, or instead trigger it from peer manager (after * deleting bonds). * * @param[in] p_erase_bonds Pointer to a bool to determine if bonds will be deleted before scanning. */ void scanning_start(bool * p_erase_bonds) { // Start scanning for peripherals and initiate connection // with devices that advertise GATT Service UUID. if (*p_erase_bonds == true) { // Scan is started by the PM_EVT_PEERS_DELETE_SUCCEEDED event. delete_bonds(); } else { scan_start(); } } int main(void) { bool erase_bonds; // Initialize. log_init(); timer_init(); buttons_leds_init(&erase_bonds); power_management_init(); ble_stack_init(); gatt_init(); peer_manager_init(); db_discovery_init(); ots_c_init(); whitelist_load(); // Start execution. NRF_LOG_INFO("Object Transfer client example started."); scanning_start(&erase_bonds); // Enter main loop. for (;;) { idle_state_handle(); } }