am 03255de3: Merge change 4757 into donut (530b7125) · Commits · e / os / android_frameworks_base

core/java/android/bluetooth/BluetoothHeadset.java

+25 −0

Original line number	Diff line number	Diff line
		@@ -331,6 +331,31 @@ public class BluetoothHeadset {
		return -1;
		}

		/**
		* Get battery usage hint for Bluetooth Headset service.
		* This is a monotonically increasing integer. Wraps to 0 at
		* Integer.MAX_INT, and at boot.
		* Current implementation returns the number of AT commands handled since
		* boot. This is a good indicator for spammy headset/handsfree units that
		* can keep the device awake by polling for cellular status updates. As a
		* rule of thumb, each AT command prevents the CPU from sleeping for 500 ms
		* @return monotonically increasing battery usage hint, or a negative error
		* code on error
		* @hide
		*/
		public int getBatteryUsageHint() {
		if (DBG) log("getBatteryUsageHint()");
		if (mService != null) {
		try {
		return mService.getBatteryUsageHint();
		} catch (RemoteException e) {Log.e(TAG, e.toString());}
		} else {
		Log.w(TAG, "Proxy not attached to service");
		if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable()));
		}
		return -1;
		}

		/**
		* Check class bits for possible HSP or HFP support.
		* This is a simple heuristic that tries to guess if a device with the

+15 −1

Original line number	Diff line number	Diff line
		@@ -40,6 +40,8 @@ public class HeadsetBase {
		public static final int DIRECTION_INCOMING = 1;
		public static final int DIRECTION_OUTGOING = 2;

		private static int sAtInputCount = 0; /* TODO: Consider not using a static variable */

		private final BluetoothDevice mBluetooth;
		private final String mAddress;
		private final int mRfcommChannel;
		@@ -109,6 +111,14 @@ public class HeadsetBase {
		acquireWakeLock();
		long timestamp;

		synchronized(HeadsetBase.class) {
		if (sAtInputCount == Integer.MAX_VALUE) {
		sAtInputCount = 0;
		} else {
		sAtInputCount++;
		}
		}

		if (DBG) timestamp = System.currentTimeMillis();
		AtCommandResult result = mAtParser.process(input);
		if (DBG) Log.d(TAG, "Processing " + input + " took " +
		@@ -279,7 +289,11 @@ public class HeadsetBase {
		}
		}

		private void log(String msg) {
		public static int getAtInputCount() {
		return sAtInputCount;
		}

		private static void log(String msg) {
		Log.d(TAG, msg);
		}
		}

+1 −0

Original line number	Diff line number	Diff line
		@@ -31,4 +31,5 @@ interface IBluetoothHeadset {
		boolean stopVoiceRecognition();
		boolean setPriority(in String address, int priority);
		int getPriority(in String address);
		int getBatteryUsageHint();
		}

+2 −0

Original line number	Diff line number	Diff line
		@@ -1039,6 +1039,8 @@ public class BluetoothDeviceService extends IBluetoothDevice.Stub {
		break;
		}
		pw.println("getHeadsetAddress() = " + headset.getHeadsetAddress());
		pw.println("getBatteryUsageHint() = " + headset.getBatteryUsageHint());

		headset.close();
		}