add iBeacon functionality
Dependencies: BLE_API mbed-dev-bin nRF51822
Fork of microbit-dal by
source/bluetooth/MicroBitAccelerometerService.cpp
- Committer:
- bluetooth_kyo
- Date:
- 2017-10-16
- Revision:
- 81:5691aae23431
- Parent:
- 1:8aa5cdb4ab67
File content as of revision 81:5691aae23431:
/* The MIT License (MIT) Copyright (c) 2016 British Broadcasting Corporation. This software is provided by Lancaster University by arrangement with the BBC. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /** * Class definition for the custom MicroBit Accelerometer Service. * Provides a BLE service to remotely read the state of the accelerometer, and configure its behaviour. */ #include "MicroBitConfig.h" #include "ble/UUID.h" #include "MicroBitAccelerometerService.h" /** * Constructor. * Create a representation of the AccelerometerService * @param _ble The instance of a BLE device that we're running on. * @param _accelerometer An instance of MicroBitAccelerometer. */ MicroBitAccelerometerService::MicroBitAccelerometerService(BLEDevice &_ble, MicroBitAccelerometer &_accelerometer) : ble(_ble), accelerometer(_accelerometer) { // Create the data structures that represent each of our characteristics in Soft Device. GattCharacteristic accelerometerDataCharacteristic(MicroBitAccelerometerServiceDataUUID, (uint8_t *)accelerometerDataCharacteristicBuffer, 0, sizeof(accelerometerDataCharacteristicBuffer), GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY); GattCharacteristic accelerometerPeriodCharacteristic(MicroBitAccelerometerServicePeriodUUID, (uint8_t *)&accelerometerPeriodCharacteristicBuffer, 0, sizeof(accelerometerPeriodCharacteristicBuffer), GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE); // Initialise our characteristic values. accelerometerDataCharacteristicBuffer[0] = 0; accelerometerDataCharacteristicBuffer[1] = 0; accelerometerDataCharacteristicBuffer[2] = 0; accelerometerPeriodCharacteristicBuffer = accelerometer.getPeriod(); // Set default security requirements accelerometerDataCharacteristic.requireSecurity(SecurityManager::MICROBIT_BLE_SECURITY_LEVEL); accelerometerPeriodCharacteristic.requireSecurity(SecurityManager::MICROBIT_BLE_SECURITY_LEVEL); GattCharacteristic *characteristics[] = {&accelerometerDataCharacteristic, &accelerometerPeriodCharacteristic}; GattService service(MicroBitAccelerometerServiceUUID, characteristics, sizeof(characteristics) / sizeof(GattCharacteristic *)); ble.addService(service); accelerometerDataCharacteristicHandle = accelerometerDataCharacteristic.getValueHandle(); accelerometerPeriodCharacteristicHandle = accelerometerPeriodCharacteristic.getValueHandle(); ble.gattServer().write(accelerometerDataCharacteristicHandle,(uint8_t *)accelerometerDataCharacteristicBuffer, sizeof(accelerometerDataCharacteristicBuffer)); ble.gattServer().write(accelerometerPeriodCharacteristicHandle, (const uint8_t *)&accelerometerPeriodCharacteristicBuffer, sizeof(accelerometerPeriodCharacteristicBuffer)); ble.onDataWritten(this, &MicroBitAccelerometerService::onDataWritten); if (EventModel::defaultEventBus) EventModel::defaultEventBus->listen(MICROBIT_ID_ACCELEROMETER, MICROBIT_ACCELEROMETER_EVT_DATA_UPDATE, this, &MicroBitAccelerometerService::accelerometerUpdate, MESSAGE_BUS_LISTENER_IMMEDIATE); } /** * Callback. Invoked when any of our attributes are written via BLE. */ void MicroBitAccelerometerService::onDataWritten(const GattWriteCallbackParams *params) { if (params->handle == accelerometerPeriodCharacteristicHandle && params->len >= sizeof(accelerometerPeriodCharacteristicBuffer)) { accelerometerPeriodCharacteristicBuffer = *((uint16_t *)params->data); accelerometer.setPeriod(accelerometerPeriodCharacteristicBuffer); // The accelerometer will choose the nearest period to that requested that it can support // Read back the ACTUAL period it is using, and report this back. accelerometerPeriodCharacteristicBuffer = accelerometer.getPeriod(); ble.gattServer().write(accelerometerPeriodCharacteristicHandle, (const uint8_t *)&accelerometerPeriodCharacteristicBuffer, sizeof(accelerometerPeriodCharacteristicBuffer)); } } /** * Accelerometer update callback */ void MicroBitAccelerometerService::accelerometerUpdate(MicroBitEvent) { if (ble.getGapState().connected) { accelerometerDataCharacteristicBuffer[0] = accelerometer.getX(); accelerometerDataCharacteristicBuffer[1] = accelerometer.getY(); accelerometerDataCharacteristicBuffer[2] = accelerometer.getZ(); ble.gattServer().notify(accelerometerDataCharacteristicHandle,(uint8_t *)accelerometerDataCharacteristicBuffer, sizeof(accelerometerDataCharacteristicBuffer)); } } const uint8_t MicroBitAccelerometerServiceUUID[] = { 0xe9,0x5d,0x07,0x53,0x25,0x1d,0x47,0x0a,0xa0,0x62,0xfa,0x19,0x22,0xdf,0xa9,0xa8 }; const uint8_t MicroBitAccelerometerServiceDataUUID[] = { 0xe9,0x5d,0xca,0x4b,0x25,0x1d,0x47,0x0a,0xa0,0x62,0xfa,0x19,0x22,0xdf,0xa9,0xa8 }; const uint8_t MicroBitAccelerometerServicePeriodUUID[] = { 0xe9,0x5d,0xfb,0x24,0x25,0x1d,0x47,0x0a,0xa0,0x62,0xfa,0x19,0x22,0xdf,0xa9,0xa8 };