Add Api to get profile connection state.
This gets the current connection state of the profile with respect
to the local Bluetooth adapter.
Change-Id: I7cff6c9201d29a8b45413cff7384b7483f21bd5c
diff --git a/core/java/android/bluetooth/BluetoothAdapter.java b/core/java/android/bluetooth/BluetoothAdapter.java
index 28bc424..264db19 100644
--- a/core/java/android/bluetooth/BluetoothAdapter.java
+++ b/core/java/android/bluetooth/BluetoothAdapter.java
@@ -774,6 +774,31 @@
}
/**
+ * Get the current connection state of a profile.
+ * This function can be used to check whether the local Bluetooth adapter
+ * is connected to any remote device for a specific profile.
+ * Profile can be one of {@link BluetoothProfile.HEADSET},
+ * {@link BluetoothProfile.A2DP}.
+ *
+ * <p>Requires {@link android.Manifest.permission#BLUETOOTH}.
+ *
+ * <p> Return value can be one of
+ * {@link * BluetoothProfile.STATE_DISCONNECTED},
+ * {@link * BluetoothProfile.STATE_CONNECTING},
+ * {@link * BluetoothProfile.STATE_CONNECTED},
+ * {@link * BluetoothProfile.STATE_DISCONNECTING}
+ * @hide
+ */
+ public int getProfileConnectionState(int profile) {
+ if (getState() != STATE_ON) return BluetoothProfile.STATE_DISCONNECTED;
+ try {
+ return mService.getProfileConnectionState(profile);
+ } catch (RemoteException e) {Log.e(TAG, "getProfileConnectionState:", e);}
+ return BluetoothProfile.STATE_DISCONNECTED;
+ }
+
+ /**
+ /**
* Picks RFCOMM channels until none are left.
* Avoids reserved channels.
*/
diff --git a/core/java/android/bluetooth/BluetoothProfile.java b/core/java/android/bluetooth/BluetoothProfile.java
index 6cd81fd..58b3868 100644
--- a/core/java/android/bluetooth/BluetoothProfile.java
+++ b/core/java/android/bluetooth/BluetoothProfile.java
@@ -83,6 +83,12 @@
public static final int PAN = 5;
/**
+ * PBAP
+ * @hide
+ */
+ public static final int PBAP = 6;
+
+ /**
* Default priority for devices that we try to auto-connect to and
* and allow incoming connections for the profile
* @hide
diff --git a/core/java/android/bluetooth/IBluetooth.aidl b/core/java/android/bluetooth/IBluetooth.aidl
index 48dfed8..d4e7f7d 100644
--- a/core/java/android/bluetooth/IBluetooth.aidl
+++ b/core/java/android/bluetooth/IBluetooth.aidl
@@ -53,6 +53,7 @@
byte[] readOutOfBandData();
int getAdapterConnectionState();
+ int getProfileConnectionState(int profile);
boolean changeApplicationBluetoothState(boolean on,
in IBluetoothStateChangeCallback callback, in
IBinder b);
@@ -121,5 +122,5 @@
List<BluetoothDevice> getHealthDevicesMatchingConnectionStates(in int[] states);
int getHealthDeviceConnectionState(in BluetoothDevice device);
- void sendConnectionStateChange(in BluetoothDevice device, int state, int prevState);
+ void sendConnectionStateChange(in BluetoothDevice device, int profile, int state, int prevState);
}
diff --git a/core/java/android/server/BluetoothA2dpService.java b/core/java/android/server/BluetoothA2dpService.java
index 8c04853..c4cb3a5 100644
--- a/core/java/android/server/BluetoothA2dpService.java
+++ b/core/java/android/server/BluetoothA2dpService.java
@@ -523,7 +523,8 @@
if (DBG) log("A2DP state : device: " + device + " State:" + prevState + "->" + state);
- mBluetoothService.sendConnectionStateChange(device, state, prevState);
+ mBluetoothService.sendConnectionStateChange(device, BluetoothProfile.A2DP, state,
+ prevState);
}
}
diff --git a/core/java/android/server/BluetoothHealthProfileHandler.java b/core/java/android/server/BluetoothHealthProfileHandler.java
index 105ff33..eafd7bd 100644
--- a/core/java/android/server/BluetoothHealthProfileHandler.java
+++ b/core/java/android/server/BluetoothHealthProfileHandler.java
@@ -20,6 +20,7 @@
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothHealth;
import android.bluetooth.BluetoothHealthAppConfiguration;
+import android.bluetooth.BluetoothProfile;
import android.bluetooth.IBluetoothHealthCallback;
import android.content.Context;
import android.os.Handler;
@@ -567,7 +568,8 @@
private void updateAndSendIntent(BluetoothDevice device, int prevDeviceState,
int newDeviceState) {
mHealthDevices.put(device, newDeviceState);
- mBluetoothService.sendConnectionStateChange(device, prevDeviceState, newDeviceState);
+ mBluetoothService.sendConnectionStateChange(device, BluetoothProfile.HEALTH,
+ prevDeviceState, newDeviceState);
}
/**
diff --git a/core/java/android/server/BluetoothInputProfileHandler.java b/core/java/android/server/BluetoothInputProfileHandler.java
index 247e297..31764b0 100644
--- a/core/java/android/server/BluetoothInputProfileHandler.java
+++ b/core/java/android/server/BluetoothInputProfileHandler.java
@@ -20,6 +20,7 @@
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothDeviceProfileState;
import android.bluetooth.BluetoothInputDevice;
+import android.bluetooth.BluetoothProfile;
import android.bluetooth.BluetoothProfileState;
import android.content.Context;
import android.content.Intent;
@@ -191,7 +192,8 @@
mContext.sendBroadcast(intent, BluetoothService.BLUETOOTH_PERM);
debugLog("InputDevice state : device: " + device + " State:" + prevState + "->" + state);
- mBluetoothService.sendConnectionStateChange(device, state, prevState);
+ mBluetoothService.sendConnectionStateChange(device, BluetoothProfile.INPUT_DEVICE, state,
+ prevState);
}
void handleInputDevicePropertyChange(String address, boolean connected) {
diff --git a/core/java/android/server/BluetoothPanProfileHandler.java b/core/java/android/server/BluetoothPanProfileHandler.java
index 37cfdc4..bfad747 100644
--- a/core/java/android/server/BluetoothPanProfileHandler.java
+++ b/core/java/android/server/BluetoothPanProfileHandler.java
@@ -19,6 +19,7 @@
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothPan;
+import android.bluetooth.BluetoothProfile;
import android.bluetooth.BluetoothTetheringDataTracker;
import android.content.BroadcastReceiver;
import android.content.Context;
@@ -303,7 +304,8 @@
mContext.sendBroadcast(intent, BluetoothService.BLUETOOTH_PERM);
debugLog("Pan Device state : device: " + device + " State:" + prevState + "->" + state);
- mBluetoothService.sendConnectionStateChange(device, state, prevState);
+ mBluetoothService.sendConnectionStateChange(device, BluetoothProfile.PAN, state,
+ prevState);
}
private class BluetoothPanDevice {
diff --git a/core/java/android/server/BluetoothService.java b/core/java/android/server/BluetoothService.java
index ee14673..9f435fd 100755
--- a/core/java/android/server/BluetoothService.java
+++ b/core/java/android/server/BluetoothService.java
@@ -166,6 +166,7 @@
private static final String INCOMING_CONNECTION_FILE =
"/data/misc/bluetooth/incoming_connection.conf";
private HashMap<String, Pair<Integer, String>> mIncomingConnections;
+ private HashMap<Integer, Pair<Integer, Integer>> mProfileConnectionState;
private static class RemoteService {
public String address;
@@ -237,6 +238,7 @@
mBluetoothPanProfileHandler = BluetoothPanProfileHandler.getInstance(mContext, this);
mBluetoothHealthProfileHandler = BluetoothHealthProfileHandler.getInstance(mContext, this);
mIncomingConnections = new HashMap<String, Pair<Integer, String>>();
+ mProfileConnectionState = new HashMap<Integer, Pair<Integer, Integer>>();
}
public static synchronized String readDockBluetoothAddress() {
@@ -1742,6 +1744,19 @@
dumpInputDeviceProfile(pw);
dumpPanProfile(pw);
dumpApplicationServiceRecords(pw);
+ dumpProfileState(pw);
+ }
+
+ private void dumpProfileState(PrintWriter pw) {
+ pw.println("\n--Profile State dump--");
+ pw.println("\n Headset profile state:" +
+ mAdapter.getProfileConnectionState(BluetoothProfile.HEADSET));
+ pw.println("\n A2dp profile state:" +
+ mAdapter.getProfileConnectionState(BluetoothProfile.A2DP));
+ pw.println("\n HID profile state:" +
+ mAdapter.getProfileConnectionState(BluetoothProfile.INPUT_DEVICE));
+ pw.println("\n PAN profile state:" +
+ mAdapter.getProfileConnectionState(BluetoothProfile.PAN));
}
private void dumpHeadsetService(PrintWriter pw) {
@@ -2443,23 +2458,85 @@
return mAdapterConnectionState;
}
- public synchronized void sendConnectionStateChange(BluetoothDevice device, int state,
- int prevState) {
+ public int getProfileConnectionState(int profile) {
+ mContext.enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");
+
+ Pair<Integer, Integer> state = mProfileConnectionState.get(profile);
+ if (state == null) return BluetoothProfile.STATE_DISCONNECTED;
+
+ return state.first;
+ }
+
+ private void updateProfileConnectionState(int profile, int newState, int oldState) {
+ // mProfileConnectionState is a hashmap -
+ // <Integer, Pair<Integer, Integer>>
+ // The key is the profile, the value is a pair. first element
+ // is the state and the second element is the number of devices
+ // in that state.
+ int numDev = 1;
+ int newHashState = newState;
+ boolean update = true;
+
+ // The following conditions are considered in this function:
+ // 1. If there is no record of profile and state - update
+ // 2. If a new device's state is current hash state - increment
+ // number of devices in the state.
+ // 3. If a state change has happened to Connected or Connecting
+ // (if current state is not connected), update.
+ // 4. If numDevices is 1 and that device state is being updated, update
+ // 5. If numDevices is > 1 and one of the devices is changing state,
+ // decrement numDevices but maintain oldState if it is Connected or
+ // Connecting
+ Pair<Integer, Integer> stateNumDev = mProfileConnectionState.get(profile);
+ if (stateNumDev != null) {
+ int currHashState = stateNumDev.first;
+ numDev = stateNumDev.second;
+
+ if (newState == currHashState) {
+ numDev ++;
+ } else if (newState == BluetoothProfile.STATE_CONNECTED ||
+ (newState == BluetoothProfile.STATE_CONNECTING &&
+ currHashState != BluetoothProfile.STATE_CONNECTED)) {
+ numDev = 1;
+ } else if (numDev == 1 && oldState == currHashState) {
+ update = true;
+ } else if (numDev > 1 && oldState == currHashState) {
+ numDev --;
+
+ if (currHashState == BluetoothProfile.STATE_CONNECTED ||
+ currHashState == BluetoothProfile.STATE_CONNECTING) {
+ newHashState = currHashState;
+ }
+ } else {
+ update = false;
+ }
+ }
+
+ if (update) {
+ mProfileConnectionState.put(profile, new Pair<Integer, Integer>(newHashState,
+ numDev));
+ }
+ }
+
+ public synchronized void sendConnectionStateChange(BluetoothDevice
+ device, int profile, int state, int prevState) {
// Since this is a binder call check if Bluetooth is on still
if (getBluetoothStateInternal() == BluetoothAdapter.STATE_OFF) return;
- if (updateCountersAndCheckForConnectionStateChange(state, prevState)) {
- if (!validateProfileConnectionState(state) ||
- !validateProfileConnectionState(prevState)) {
- // Previously, an invalid state was broadcast anyway,
- // with the invalid state converted to -1 in the intent.
- // Better to log an error and not send an intent with
- // invalid contents or set mAdapterConnectionState to -1.
- Log.e(TAG, "Error in sendConnectionStateChange: "
- + "prevState " + prevState + " state " + state);
- return;
- }
+ if (!validateProfileConnectionState(state) ||
+ !validateProfileConnectionState(prevState)) {
+ // Previously, an invalid state was broadcast anyway,
+ // with the invalid state converted to -1 in the intent.
+ // Better to log an error and not send an intent with
+ // invalid contents or set mAdapterConnectionState to -1.
+ Log.e(TAG, "Error in sendConnectionStateChange: "
+ + "prevState " + prevState + " state " + state);
+ return;
+ }
+ updateProfileConnectionState(profile, state, prevState);
+
+ if (updateCountersAndCheckForConnectionStateChange(state, prevState)) {
mAdapterConnectionState = state;
if (state == BluetoothProfile.STATE_DISCONNECTED) {