Joe Finney / Mbed 2 deprecated BLETEST

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Dependencies:   BLE_API BLE_HeartRate mbed nRF51822

Fork of BLE_HeartRate by Bluetooth Low Energy

MicroBitAccelerometerService.cpp@77:d0c01a3d966f, 2015-11-30 (annotated)

Committer:
finneyj
Date:
Mon Nov 30 13:37:37 2015 +0000
Revision:
77:d0c01a3d966f
Repro of BLE disconnect bug under pure mbed

Who changed what in which revision?

UserRevisionLine numberNew contents of line
finneyj 77:d0c01a3d966f 1 /**
finneyj 77:d0c01a3d966f 2 * Class definition for the custom MicroBit Accelerometer Service.
finneyj 77:d0c01a3d966f 3 * Provides a BLE service to remotely read the state of the accelerometer, and configure its behaviour.
finneyj 77:d0c01a3d966f 4 */
finneyj 77:d0c01a3d966f 5
finneyj 77:d0c01a3d966f 6 #include "mbed.h"
finneyj 77:d0c01a3d966f 7 #include "ble/BLE.h"
finneyj 77:d0c01a3d966f 8 #include "ble/UUID.h"
finneyj 77:d0c01a3d966f 9 #include "MicroBitAccelerometerService.h"
finneyj 77:d0c01a3d966f 10
finneyj 77:d0c01a3d966f 11 GattAttribute::Handle_t accelerometerDataCharacteristicHandleGlobal;
finneyj 77:d0c01a3d966f 12
finneyj 77:d0c01a3d966f 13 /**
finneyj 77:d0c01a3d966f 14 * Constructor.
finneyj 77:d0c01a3d966f 15 * Create a representation of the AccelerometerService
finneyj 77:d0c01a3d966f 16 * @param _ble The instance of a BLE device that we're running on.
finneyj 77:d0c01a3d966f 17 */
finneyj 77:d0c01a3d966f 18 MicroBitAccelerometerService::MicroBitAccelerometerService(BLEDevice &_ble) :
finneyj 77:d0c01a3d966f 19 ble(_ble)
finneyj 77:d0c01a3d966f 20 {
finneyj 77:d0c01a3d966f 21 // Create the data structures that represent each of our characteristics in Soft Device.
finneyj 77:d0c01a3d966f 22 GattCharacteristic *accelerometerDataCharacteristic = new GattCharacteristic(MicroBitAccelerometerServiceDataUUID, (uint8_t *)accelerometerDataCharacteristicBuffer, 0,
finneyj 77:d0c01a3d966f 23 sizeof(accelerometerDataCharacteristicBuffer), GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
finneyj 77:d0c01a3d966f 24
finneyj 77:d0c01a3d966f 25 GattCharacteristic *accelerometerPeriodCharacteristic = new GattCharacteristic(MicroBitAccelerometerServicePeriodUUID, (uint8_t *)&accelerometerPeriodCharacteristicBuffer, 0,
finneyj 77:d0c01a3d966f 26 sizeof(accelerometerPeriodCharacteristicBuffer),
finneyj 77:d0c01a3d966f 27 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE);
finneyj 77:d0c01a3d966f 28
finneyj 77:d0c01a3d966f 29 // Initialise our characteristic values.
finneyj 77:d0c01a3d966f 30 accelerometerDataCharacteristicBuffer[0] = 0;
finneyj 77:d0c01a3d966f 31 accelerometerDataCharacteristicBuffer[1] = 0;
finneyj 77:d0c01a3d966f 32 accelerometerDataCharacteristicBuffer[2] = 0;
finneyj 77:d0c01a3d966f 33 accelerometerPeriodCharacteristicBuffer = 0;
finneyj 77:d0c01a3d966f 34
finneyj 77:d0c01a3d966f 35 // Set default security requirements
finneyj 77:d0c01a3d966f 36 accelerometerDataCharacteristic->requireSecurity(SecurityManager::SECURITY_MODE_ENCRYPTION_WITH_MITM);
finneyj 77:d0c01a3d966f 37 accelerometerPeriodCharacteristic->requireSecurity(SecurityManager::SECURITY_MODE_ENCRYPTION_WITH_MITM);
finneyj 77:d0c01a3d966f 38
finneyj 77:d0c01a3d966f 39 GattCharacteristic *characteristics[] = {accelerometerDataCharacteristic, accelerometerPeriodCharacteristic};
finneyj 77:d0c01a3d966f 40 GattService service(MicroBitAccelerometerServiceUUID, characteristics, sizeof(characteristics) / sizeof(GattCharacteristic *));
finneyj 77:d0c01a3d966f 41
finneyj 77:d0c01a3d966f 42 ble.addService(service);
finneyj 77:d0c01a3d966f 43
finneyj 77:d0c01a3d966f 44 accelerometerDataCharacteristicHandle = accelerometerDataCharacteristic->getValueHandle();
finneyj 77:d0c01a3d966f 45 accelerometerDataCharacteristicHandleGlobal = accelerometerDataCharacteristic->getValueHandle();
finneyj 77:d0c01a3d966f 46 accelerometerPeriodCharacteristicHandle = accelerometerPeriodCharacteristic->getValueHandle();
finneyj 77:d0c01a3d966f 47
finneyj 77:d0c01a3d966f 48 ble.gattServer().write(accelerometerDataCharacteristicHandle,(uint8_t *)accelerometerDataCharacteristicBuffer, sizeof(accelerometerDataCharacteristicBuffer));
finneyj 77:d0c01a3d966f 49 ble.gattServer().write(accelerometerPeriodCharacteristicHandle, (const uint8_t *)&accelerometerPeriodCharacteristicBuffer, sizeof(accelerometerPeriodCharacteristicBuffer));
finneyj 77:d0c01a3d966f 50
finneyj 77:d0c01a3d966f 51 ble.onDataWritten(this, &MicroBitAccelerometerService::onDataWritten);
finneyj 77:d0c01a3d966f 52 }
finneyj 77:d0c01a3d966f 53
finneyj 77:d0c01a3d966f 54 /**
finneyj 77:d0c01a3d966f 55 * Callback. Invoked when any of our attributes are written via BLE.
finneyj 77:d0c01a3d966f 56 */
finneyj 77:d0c01a3d966f 57 void MicroBitAccelerometerService::onDataWritten(const GattWriteCallbackParams *params)
finneyj 77:d0c01a3d966f 58 {
finneyj 77:d0c01a3d966f 59 if (params->handle == accelerometerPeriodCharacteristicHandle && params->len >= sizeof(accelerometerPeriodCharacteristicBuffer))
finneyj 77:d0c01a3d966f 60 {
finneyj 77:d0c01a3d966f 61 accelerometerPeriodCharacteristicBuffer = *((uint16_t *)params->data);
finneyj 77:d0c01a3d966f 62 }
finneyj 77:d0c01a3d966f 63 }
finneyj 77:d0c01a3d966f 64
finneyj 77:d0c01a3d966f 65 const uint8_t MicroBitAccelerometerServiceUUID[] = {
finneyj 77:d0c01a3d966f 66 0xe9,0x5d,0x07,0x53,0x25,0x1d,0x47,0x0a,0xa0,0x62,0xfa,0x19,0x22,0xdf,0xa9,0xa8
finneyj 77:d0c01a3d966f 67 };
finneyj 77:d0c01a3d966f 68
finneyj 77:d0c01a3d966f 69 const uint8_t MicroBitAccelerometerServiceDataUUID[] = {
finneyj 77:d0c01a3d966f 70 0xe9,0x5d,0xca,0x4b,0x25,0x1d,0x47,0x0a,0xa0,0x62,0xfa,0x19,0x22,0xdf,0xa9,0xa8
finneyj 77:d0c01a3d966f 71 };
finneyj 77:d0c01a3d966f 72
finneyj 77:d0c01a3d966f 73 const uint8_t MicroBitAccelerometerServicePeriodUUID[] = {
finneyj 77:d0c01a3d966f 74 0xe9,0x5d,0xfb,0x24,0x25,0x1d,0x47,0x0a,0xa0,0x62,0xfa,0x19,0x22,0xdf,0xa9,0xa8
finneyj 77:d0c01a3d966f 75 };
finneyj 77:d0c01a3d966f 76