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app/src/main/java/svenmeier/coxswain/bluetooth/BlueUtils.java
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app/src/main/java/svenmeier/coxswain/bluetooth/BlueWriter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,160 @@ | ||
| package svenmeier.coxswain.bluetooth; | ||
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| import android.annotation.TargetApi; | ||
| import android.bluetooth.BluetoothGatt; | ||
| import android.bluetooth.BluetoothGattCallback; | ||
| import android.bluetooth.BluetoothGattCharacteristic; | ||
| import android.bluetooth.BluetoothGattDescriptor; | ||
| import android.bluetooth.BluetoothGattService; | ||
| import android.os.Build; | ||
| import android.support.annotation.CallSuper; | ||
| import android.util.Log; | ||
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| import java.util.ArrayDeque; | ||
| import java.util.Queue; | ||
| import java.util.UUID; | ||
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| import svenmeier.coxswain.Coxswain; | ||
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| @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR2) | ||
| public class BlueWriter extends BluetoothGattCallback { | ||
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| public static final UUID SERVICE_HEART_RATE = uuid(0x180D); | ||
| public static final UUID CHARACTERISTIC_HEART_RATE_MEASUREMENT = uuid(0x2A37); | ||
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| public static final UUID SERVICE_DEVICE_INFORMATION = uuid(0x180A); | ||
| public static final UUID CHARACTERISTIC_SOFTWARE_REVISION = uuid(0x2A28); | ||
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| public static final UUID SERVICE_FITNESS_MACHINE = uuid(0x1826); | ||
| public static final UUID CHARACTERISTIC_ROWER_DATA = uuid(0x2AD1); | ||
| public static final UUID CHARACTERISTIC_CONTROL_POINT = uuid(0x2AD9); | ||
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| public static final UUID CLIENT_CHARACTERISTIC_DESCIPRTOR = uuid(0x2902); | ||
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| private Queue<Request> requests = new ArrayDeque<>(); | ||
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| private Request current = null; | ||
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| private interface Request { | ||
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| void request(); | ||
| } | ||
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| private void request(Request request) { | ||
| requests.add(request); | ||
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| requestNext(); | ||
| } | ||
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| private void requestNext() { | ||
| if (current != null) { | ||
| return; | ||
| } | ||
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| current = requests.poll(); | ||
| if (current != null) { | ||
| current.request(); | ||
| } | ||
| } | ||
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| public BluetoothGattCharacteristic get(BluetoothGatt gatt, UUID service, UUID characteristic) { | ||
| BluetoothGattService s = gatt.getService(service); | ||
| if (s == null) { | ||
| return null; | ||
| } | ||
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| BluetoothGattCharacteristic c = s.getCharacteristic(characteristic); | ||
| return c; | ||
| } | ||
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| @CallSuper | ||
| @Override | ||
| public void onDescriptorWrite(BluetoothGatt gatt, BluetoothGattDescriptor descriptor, int status) { | ||
| if (current != null) { | ||
| current = null; | ||
| requestNext(); | ||
| } | ||
| } | ||
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| @CallSuper | ||
| @Override | ||
| public void onCharacteristicWrite(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic, int status) { | ||
| if (current != null) { | ||
| current = null; | ||
| requestNext(); | ||
| } | ||
| } | ||
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| @CallSuper | ||
| @Override | ||
| public void onCharacteristicRead(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic, int status) { | ||
| if (current != null) { | ||
| current = null; | ||
| requestNext(); | ||
| } | ||
| } | ||
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| public void enableNotification(final BluetoothGatt gatt, final BluetoothGattCharacteristic characteristic) { | ||
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| request(new Request() { | ||
| @Override | ||
| public void request() { | ||
| gatt.setCharacteristicNotification(characteristic, true); | ||
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| BluetoothGattDescriptor descriptor = characteristic.getDescriptor(CLIENT_CHARACTERISTIC_DESCIPRTOR); | ||
| if (descriptor != null) { | ||
| descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE); | ||
| if (gatt.writeDescriptor(descriptor) == false) { | ||
| Log.e(Coxswain.TAG, "bluetooth enabled notification failed"); | ||
| } | ||
| } | ||
| } | ||
| }); | ||
| } | ||
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| public void enableIndication(final BluetoothGatt gatt, final BluetoothGattCharacteristic characteristic) { | ||
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| request(new Request() { | ||
| @Override | ||
| public void request() { | ||
| gatt.setCharacteristicNotification(characteristic, true); | ||
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| BluetoothGattDescriptor descriptor = characteristic.getDescriptor(CLIENT_CHARACTERISTIC_DESCIPRTOR); | ||
| if (descriptor != null) { | ||
| descriptor.setValue(BluetoothGattDescriptor.ENABLE_INDICATION_VALUE); | ||
| if (gatt.writeDescriptor(descriptor) == false) { | ||
| Log.e(Coxswain.TAG, "bluetooth enabled indication failed"); | ||
| } | ||
| } | ||
| } | ||
| }); | ||
| } | ||
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| public void write(final BluetoothGatt gatt, final BluetoothGattCharacteristic characteristic, final byte value) { | ||
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| request(new Request() { | ||
| @Override | ||
| public void request() { | ||
| characteristic.setValue(value, BluetoothGattCharacteristic.FORMAT_UINT8, 0); | ||
| if (gatt.writeCharacteristic(characteristic) == false) { | ||
| Log.e(Coxswain.TAG, "bluetooth write failed"); | ||
| } | ||
| } | ||
| }); | ||
| } | ||
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| public void read(final BluetoothGatt gatt, final BluetoothGattCharacteristic characteristic) { | ||
| request(new Request() { | ||
| @Override | ||
| public void request() { | ||
| if (gatt.readCharacteristic(characteristic) == false) { | ||
| Log.e(Coxswain.TAG, "bluetooth read failed"); | ||
| } | ||
| } | ||
| }); | ||
| } | ||
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| public static final UUID uuid(int id) { | ||
| return UUID.fromString(String.format("%08X-0000-1000-8000-00805f9b34fb", id)); | ||
| } | ||
| } |
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