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source/btle/btle.cpp
- Committer:
- rgrover1
- Date:
- 2015-12-02
- Revision:
- 496:08bd8a46630b
- Parent:
- 494:ed0e3d0353e2
- Child:
- 497:4b09b9115685
File content as of revision 496:08bd8a46630b:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "common/common.h" #include "nordic_common.h" #include "btle.h" #include "ble_stack_handler_types.h" #include "ble_flash.h" #include "ble_conn_params.h" #include "btle_gap.h" #include "btle_advertising.h" #include "custom/custom_helper.h" #include "softdevice_handler.h" #include "pstorage.h" #include "ble/GapEvents.h" #include "nRF5xGap.h" #include "nRF5xGattServer.h" #include "nRF5xSecurityManager.h" #include "device_manager.h" #include "ble_hci.h" #include "btle_discovery.h" extern "C" void assert_nrf_callback(uint16_t line_num, const uint8_t *p_file_name); void app_error_handler(uint32_t error_code, uint32_t line_num, const uint8_t *p_file_name); static void btle_handler(ble_evt_t *p_ble_evt); static void sys_evt_dispatch(uint32_t sys_evt) { pstorage_sys_event_handler(sys_evt); } /** * This function is called in interrupt context to handle BLE events; i.e. pull * system and user events out of the pending events-queue of the BLE stack. The * BLE stack signals the availability of events by the triggering the SWI2 * interrupt, which forwards the handling to this function. * * The event processing loop is implemented in intern_softdevice_events_execute(). * * In mbed OS, a callback for intern_softdevice_events_execute() is posted * to the scheduler, which then executes in thread mode. In mbed-classic, * event processing happens right-away in interrupt context (which is more * risk-prone). In either case, the logic of event processing is identical. */ static uint32_t eventHandler() { #ifdef YOTTA_CFG_MBED_OS minar::Scheduler::postCallback(intern_softdevice_events_execute); #else intern_softdevice_events_execute(); #endif return NRF_SUCCESS; } error_t btle_init(void) { nrf_clock_lfclksrc_t clockSource; if (NRF_CLOCK->LFCLKSRC & (CLOCK_LFCLKSRC_SRC_Xtal << CLOCK_LFCLKSRC_SRC_Pos)) { clockSource = NRF_CLOCK_LFCLKSRC_XTAL_20_PPM; } else { clockSource = NRF_CLOCK_LFCLKSRC_RC_250_PPM_4000MS_CALIBRATION; } SOFTDEVICE_HANDLER_INIT(clockSource, eventHandler); // Enable BLE stack /** * Using this call, the application can select whether to include the * Service Changed characteristic in the GATT Server. The default in all * previous releases has been to include the Service Changed characteristic, * but this affects how GATT clients behave. Specifically, it requires * clients to subscribe to this attribute and not to cache attribute handles * between connections unless the devices are bonded. If the application * does not need to change the structure of the GATT server attributes at * runtime this adds unnecessary complexity to the interaction with peer * clients. If the SoftDevice is enabled with the Service Changed * Characteristics turned off, then clients are allowed to cache attribute * handles making applications simpler on both sides. */ static const bool IS_SRVC_CHANGED_CHARACT_PRESENT = true; ble_enable_params_t enableParams = { .gatts_enable_params = { .service_changed = IS_SRVC_CHANGED_CHARACT_PRESENT } }; if (sd_ble_enable(&enableParams) != NRF_SUCCESS) { return ERROR_INVALID_PARAM; } ble_gap_addr_t addr; if (sd_ble_gap_address_get(&addr) != NRF_SUCCESS) { return ERROR_INVALID_PARAM; } if (sd_ble_gap_address_set(BLE_GAP_ADDR_CYCLE_MODE_NONE, &addr) != NRF_SUCCESS) { return ERROR_INVALID_PARAM; } ASSERT_STATUS( softdevice_ble_evt_handler_set(btle_handler)); ASSERT_STATUS( softdevice_sys_evt_handler_set(sys_evt_dispatch)); btle_gap_init(); return ERROR_NONE; } static void btle_handler(ble_evt_t *p_ble_evt) { /* Library service handlers */ #if SDK_CONN_PARAMS_MODULE_ENABLE ble_conn_params_on_ble_evt(p_ble_evt); #endif dm_ble_evt_handler(p_ble_evt); #if !defined(TARGET_MCU_NRF51_16K_S110) && !defined(TARGET_MCU_NRF51_32K_S110) bleGattcEventHandler(p_ble_evt); #endif /* Custom event handler */ switch (p_ble_evt->header.evt_id) { case BLE_GAP_EVT_CONNECTED: { Gap::Handle_t handle = p_ble_evt->evt.gap_evt.conn_handle; #if defined(TARGET_MCU_NRF51_16K_S110) || defined(TARGET_MCU_NRF51_32K_S110) /* Only peripheral role is supported by S110 */ Gap::Role_t role = Gap::PERIPHERAL; #else Gap::Role_t role = static_cast<Gap::Role_t>(p_ble_evt->evt.gap_evt.params.connected.role); #endif nRF5xGap::getInstance().setConnectionHandle(handle); const Gap::ConnectionParams_t *params = reinterpret_cast<Gap::ConnectionParams_t *>(&(p_ble_evt->evt.gap_evt.params.connected.conn_params)); const ble_gap_addr_t *peer = &p_ble_evt->evt.gap_evt.params.connected.peer_addr; const ble_gap_addr_t *own = &p_ble_evt->evt.gap_evt.params.connected.own_addr; nRF5xGap::getInstance().processConnectionEvent(handle, role, static_cast<Gap::AddressType_t>(peer->addr_type), peer->addr, static_cast<Gap::AddressType_t>(own->addr_type), own->addr, params); break; } case BLE_GAP_EVT_DISCONNECTED: { Gap::Handle_t handle = p_ble_evt->evt.gap_evt.conn_handle; // Since we are not in a connection and have not started advertising, // store bonds nRF5xGap::getInstance().setConnectionHandle (BLE_CONN_HANDLE_INVALID); Gap::DisconnectionReason_t reason; switch (p_ble_evt->evt.gap_evt.params.disconnected.reason) { case BLE_HCI_LOCAL_HOST_TERMINATED_CONNECTION: reason = Gap::LOCAL_HOST_TERMINATED_CONNECTION; break; case BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION: reason = Gap::REMOTE_USER_TERMINATED_CONNECTION; break; case BLE_HCI_CONN_INTERVAL_UNACCEPTABLE: reason = Gap::CONN_INTERVAL_UNACCEPTABLE; break; default: /* Please refer to the underlying transport library for an * interpretion of this reason's value. */ reason = static_cast<Gap::DisconnectionReason_t>(p_ble_evt->evt.gap_evt.params.disconnected.reason); break; } nRF5xGap::getInstance().processDisconnectionEvent(handle, reason); break; } case BLE_GAP_EVT_PASSKEY_DISPLAY: nRF5xSecurityManager::getInstance().processPasskeyDisplayEvent(p_ble_evt->evt.gap_evt.conn_handle, p_ble_evt->evt.gap_evt.params.passkey_display.passkey); break; case BLE_GAP_EVT_TIMEOUT: nRF5xGap::getInstance().processTimeoutEvent(static_cast<Gap::TimeoutSource_t>(p_ble_evt->evt.gap_evt.params.timeout.src)); break; case BLE_GATTC_EVT_TIMEOUT: case BLE_GATTS_EVT_TIMEOUT: // Disconnect on GATT Server and Client timeout events. // ASSERT_STATUS_RET_VOID (sd_ble_gap_disconnect(m_conn_handle, // BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION)); break; case BLE_GAP_EVT_ADV_REPORT: { const ble_gap_evt_adv_report_t *advReport = &p_ble_evt->evt.gap_evt.params.adv_report; nRF5xGap::getInstance().processAdvertisementReport(advReport->peer_addr.addr, advReport->rssi, advReport->scan_rsp, static_cast<GapAdvertisingParams::AdvertisingType_t>(advReport->type), advReport->dlen, advReport->data); break; } default: break; } nRF5xGattServer::getInstance().hwCallback(p_ble_evt); } /*! @brief Callback when an error occurs inside the SoftDevice */ void assert_nrf_callback(uint16_t line_num, const uint8_t *p_file_name) { ASSERT(false, (void) 0); } /*! @brief Handler for general errors above the SoftDevice layer. Typically we can' recover from this so we do a reset. */ void app_error_handler(uint32_t error_code, uint32_t line_num, const uint8_t *p_file_name) { ASSERT_STATUS_RET_VOID( error_code ); NVIC_SystemReset(); }