MicroBit as BLE gamepad
Fork of nRF51822 by
btle/btle.cpp
- Committer:
- rgrover1
- Date:
- 2015-05-08
- Revision:
- 122:df81fcbfa150
- Parent:
- 112:737b08b3b995
- Child:
- 123:e19f9f7874f9
File content as of revision 122:df81fcbfa150:
/* 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 "GapEvents.h" #include "nRF51Gap.h" #include "nRF51GattServer.h" #include "ble_hci.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); } error_t btle_init(void) { #if defined(TARGET_DELTA_DFCM_NNN40) || defined(TARGET_HRM1017) SOFTDEVICE_HANDLER_INIT(NRF_CLOCK_LFCLKSRC_RC_250_PPM_4000MS_CALIBRATION, NULL); #else SOFTDEVICE_HANDLER_INIT(NRF_CLOCK_LFCLKSRC_XTAL_20_PPM, NULL); #endif // 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 /* 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; nRF51Gap::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; nRF51Gap::getInstance().processConnectionEvent(handle, static_cast<Gap::addr_type_t>(peer->addr_type), peer->addr, static_cast<Gap::addr_type_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 nRF51Gap::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; } nRF51Gap::getInstance().processDisconnectionEvent(handle, reason); break; } case BLE_GAP_EVT_SEC_PARAMS_REQUEST: { ble_gap_sec_params_t sec_params = {0}; sec_params.bond = 1; /**< Perform bonding. */ sec_params.mitm = CFG_BLE_SEC_PARAM_MITM; sec_params.io_caps = CFG_BLE_SEC_PARAM_IO_CAPABILITIES; sec_params.oob = CFG_BLE_SEC_PARAM_OOB; sec_params.min_key_size = CFG_BLE_SEC_PARAM_MIN_KEY_SIZE; sec_params.max_key_size = CFG_BLE_SEC_PARAM_MAX_KEY_SIZE; ble_gap_sec_keyset_t sec_keyset = {0}; ASSERT_STATUS_RET_VOID(sd_ble_gap_sec_params_reply(nRF51Gap::getInstance().getConnectionHandle(), BLE_GAP_SEC_STATUS_SUCCESS, &sec_params, &sec_keyset)); } break; case BLE_GAP_EVT_TIMEOUT: if (p_ble_evt->evt.gap_evt.params.timeout.src == BLE_GAP_TIMEOUT_SRC_ADVERTISING) { nRF51Gap::getInstance().processEvent(GapEvents::GAP_EVENT_TIMEOUT); } 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; default: break; } nRF51GattServer::getInstance().hwCallback(p_ble_evt); } /**************************************************************************/ /*! @brief Callback when an error occurs inside the SoftDevice @param[in] line_num @param[in] p-file_name @returns */ /**************************************************************************/ 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. @param[in] error_code @param[in] line_num @param[in] p-file_name @returns */ /**************************************************************************/ 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(); }