Modify Bluetooth Class of Device from Android stack (4729ea80) · Commits · e / os / android_packages_modules_Bluetooth

framework/java/android/bluetooth/BluetoothAdapter.java

+23 −0

Original line number	Diff line number	Diff line
		@@ -1133,6 +1133,29 @@ public final class BluetoothAdapter {
		return false;
		}

		/**
		* Sets the {@link BluetoothClass} Bluetooth Class of Device (CoD) of
		* the local Bluetooth adapter.
		*
		* @param bluetoothClass {@link BluetoothClass} to set the local Bluetooth adapter to.
		* @return true if successful, false if unsuccessful.
		*
		* @hide
		*/
		@RequiresPermission(Manifest.permission.BLUETOOTH_PRIVILEGED)
		public boolean setBluetoothClass(BluetoothClass bluetoothClass) {
		if (getState() != STATE_ON) return false;
		try {
		mServiceLock.readLock().lock();
		if (mService != null) return mService.setBluetoothClass(bluetoothClass);
		} catch (RemoteException e) {
		Log.e(TAG, "", e);
		} finally {
		mServiceLock.readLock().unlock();
		}
		return false;
		}

		/**
		* Get the current Bluetooth scan mode of the local Bluetooth adapter.
		* <p>The Bluetooth scan mode determines if the local adapter is

framework/java/android/bluetooth/BluetoothClass.java

+46 −0

Original line number	Diff line number	Diff line
		@@ -19,6 +19,10 @@ package android.bluetooth;
		import android.os.Parcel;
		import android.os.Parcelable;

		import java.nio.ByteBuffer;
		import java.nio.ByteOrder;
		import java.util.Arrays;

		/**
		* Represents a Bluetooth class, which describes general characteristics
		* and capabilities of a device. For example, a Bluetooth class will
		@@ -275,6 +279,48 @@ public final class BluetoothClass implements Parcelable {
		return (mClass & Device.BITMASK);
		}

		/**
		* Return the Bluetooth Class of Device (CoD) value including the
		* {@link BluetoothClass.Service}, {@link BluetoothClass.Device.Major} and
		* minor device fields.
		*
		* <p>This value is an integer representation of Bluetooth CoD as in
		* Bluetooth specification.
		*
		* @see <a href="Bluetooth CoD">https://www.bluetooth.com/specifications/assigned-numbers/baseband</a>
		*
		* @hide
		*/
		public int getClassOfDevice() {
		return mClass;
		}

		/**
		* Return the Bluetooth Class of Device (CoD) value including the
		* {@link BluetoothClass.Service}, {@link BluetoothClass.Device.Major} and
		* minor device fields.
		*
		* <p>This value is a byte array representation of Bluetooth CoD as in
		* Bluetooth specification.
		*
		* <p>Bluetooth COD information is 3 bytes, but stored as an int. Hence the
		* MSB is useless and needs to be thrown away. The lower 3 bytes are
		* converted into a byte array MSB to LSB. Hence, using BIG_ENDIAN.
		*
		* @see <a href="Bluetooth CoD">https://www.bluetooth.com/specifications/assigned-numbers/baseband</a>
		*
		* @hide
		*/
		public byte[] getClassOfDeviceBytes() {
		byte[] bytes = ByteBuffer.allocate(4)
		.order(ByteOrder.BIG_ENDIAN)
		.putInt(mClass)
		.array();

		// Discard the top byte
		return Arrays.copyOfRange(bytes, 1, bytes.length);
		}

		/** @hide */
		public static final int PROFILE_HEADSET = 0;
		/** @hide */