HFP 1.7 profile update (3/4)

-> Android Framework changes to add support for
   an API to send indicator change in AG.
-> Added a system intent for broadcasting assigned number(ID)
   of the supported HF indicators and their values (if received)

Bug: 19983867
Change-Id: If26a7ae5da5686da72ebca9ec3decfe086e2ffb6

core/java/android/bluetooth/BluetoothHeadset.java

@@ -220,6 +220,46 @@ public final class BluetoothHeadset implements BluetoothProfile {
      * {@link #EXTRA_STATE} or {@link #EXTRA_PREVIOUS_STATE} of
      * {@link #ACTION_AUDIO_STATE_CHANGED} intent.
      */
+
+    /**
+     * Intent used to broadcast the headset's indicator status
+     *
+     * <p>This intent will have 3 extras:
+     * <ul>
+     *   <li> {@link #EXTRA_IND_ID} - The Assigned number of headset Indicator which is supported by
+                                        the headset ( as indicated by AT+BIND
+                                        command in the SLC sequence).or whose value
+                                        is changed (indicated by AT+BIEV command)</li>
+     *   <li> {@link #EXTRA_IND_VALUE}- The updated value of headset indicator. </li>
+     *   <li> {@link BluetoothDevice#EXTRA_DEVICE} - The remote device. </li>
+     * </ul>
+     * <p>{@link #EXTRA_IND_ID} is defined by Bluetooth SIG and each of the indicators are
+     * given an assigned number. Below shows the assigned number of Indicator added so far
+     * - Enhanced Safety - 1
+     * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission to
+     * receive.
+     * @hide
+     */
+    public static final String ACTION_HF_INDICATORS_VALUE_CHANGED =
+            "android.bluetooth.headset.action.HF_INDICATORS_VALUE_CHANGED";
+
+    /**
+     * A String extra field in {@link #ACTION_HF_INDICATORS_VALUE_CHANGED}
+     * intents that contains the UUID of the headset  indicator (as defined by Bluetooth SIG)
+     * that is being sent.
+     * @hide
+     */
+    public static final String EXTRA_HF_INDICATORS_IND_ID =
+            "android.bluetooth.headset.extra.HF_INDICATORS_IND_ID";
+
+    /**
+     * A int  extra field in {@link #ACTION_HF_INDICATORS_VALUE_CHANGED}
+     * intents that contains the value of the Headset indicator that is being sent.
+     * @hide
+     */
+    public static final String EXTRA_HF_INDICATORS_IND_VALUE =
+            "android.bluetooth.headset.extra.HF_INDICATORS_IND_VALUE";
+
     public static final int STATE_AUDIO_CONNECTED = 12;
 
     private static final int MESSAGE_HEADSET_SERVICE_CONNECTED = 100;
@@ -969,6 +1009,29 @@ public final class BluetoothHeadset implements BluetoothProfile {
         return false;
     }
 
+    /**
+     * Send Headset the BIND response from AG to report change in the status of the
+     * HF indicators to the headset
+     *
+     * @param ind_id Assigned Number of the indicator (defined by SIG)
+     * @param ind_status
+     * possible values- false-Indicator is disabled, no value changes shall be sent for this indicator
+     *                  true-Indicator is enabled, value changes may be sent for this indicator
+     * @hide
+     */
+    public void bindResponse(int ind_id, boolean ind_status) {
+        if (mService != null && isEnabled()) {
+            try {
+                mService.bindResponse(ind_id, ind_status);
+            } 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()));
+        }
+    }
+
     private final IBluetoothProfileServiceConnection mConnection
             = new IBluetoothProfileServiceConnection.Stub()  {
         @Override

core/java/android/bluetooth/IBluetoothHeadset.aidl

@@ -59,4 +59,5 @@ interface IBluetoothHeadset {
                       String number, int type);
     boolean enableWBS();
     boolean disableWBS();
+    void bindResponse(int ind_id, boolean ind_status);
 }