diff options
Diffstat (limited to 'core/java/android/server/BluetoothAdapterStateMachine.java')
| -rw-r--r-- | core/java/android/server/BluetoothAdapterStateMachine.java | 78 |
1 files changed, 75 insertions, 3 deletions
diff --git a/core/java/android/server/BluetoothAdapterStateMachine.java b/core/java/android/server/BluetoothAdapterStateMachine.java index 69fbca3..ac46ee2 100644 --- a/core/java/android/server/BluetoothAdapterStateMachine.java +++ b/core/java/android/server/BluetoothAdapterStateMachine.java @@ -109,6 +109,8 @@ final class BluetoothAdapterStateMachine extends StateMachine { private static final int DEVICES_DISCONNECT_TIMEOUT = 104; // Prepare Bluetooth timeout happens private static final int PREPARE_BLUETOOTH_TIMEOUT = 105; + // Bluetooth Powerdown timeout happens + private static final int POWER_DOWN_TIMEOUT = 106; private Context mContext; private BluetoothService mBluetoothService; @@ -129,6 +131,8 @@ final class BluetoothAdapterStateMachine extends StateMachine { private static final int PREPARE_BLUETOOTH_TIMEOUT_TIME = 10000; + private static final int POWER_DOWN_TIMEOUT_TIME = 5000; + BluetoothAdapterStateMachine(Context context, BluetoothService bluetoothService, BluetoothAdapter bluetoothAdapter) { super(TAG); @@ -386,6 +390,11 @@ final class BluetoothAdapterStateMachine extends StateMachine { break; case USER_TURN_OFF: // ignore break; + case POWER_STATE_CHANGED: + if ((Boolean) message.obj) { + recoverStateMachine(TURN_HOT, null); + } + break; default: return NOT_HANDLED; } @@ -420,14 +429,27 @@ final class BluetoothAdapterStateMachine extends StateMachine { } break; case POWER_STATE_CHANGED: + removeMessages(POWER_DOWN_TIMEOUT); if (!((Boolean) message.obj)) { - transitionTo(mHotOff); - finishSwitchingOff(); + if (mPublicState == BluetoothAdapter.STATE_TURNING_OFF) { + transitionTo(mHotOff); + finishSwitchingOff(); + } + } else { + if (mPublicState != BluetoothAdapter.STATE_TURNING_ON) { + if (mContext.getResources().getBoolean + (com.android.internal.R.bool.config_bluetooth_adapter_quick_switch)) { + recoverStateMachine(TURN_HOT, null); + } else { + recoverStateMachine(TURN_COLD, null); + } + } } break; case ALL_DEVICES_DISCONNECTED: removeMessages(DEVICES_DISCONNECT_TIMEOUT); mBluetoothService.switchConnectable(false); + sendMessageDelayed(POWER_DOWN_TIMEOUT, POWER_DOWN_TIMEOUT_TIME); break; case DEVICES_DISCONNECT_TIMEOUT: sendMessage(ALL_DEVICES_DISCONNECTED); @@ -439,6 +461,17 @@ final class BluetoothAdapterStateMachine extends StateMachine { deferMessage(obtainMessage(TURN_HOT)); } break; + case POWER_DOWN_TIMEOUT: + transitionTo(mHotOff); + finishSwitchingOff(); + // reset the hardware for error recovery + Log.e(TAG, "Devices failed to power down, reseting..."); + deferMessage(obtainMessage(TURN_COLD)); + if (mContext.getResources().getBoolean + (com.android.internal.R.bool.config_bluetooth_adapter_quick_switch)) { + deferMessage(obtainMessage(TURN_HOT)); + } + break; case USER_TURN_ON: case AIRPLANE_MODE_OFF: case AIRPLANE_MODE_ON: @@ -501,6 +534,7 @@ final class BluetoothAdapterStateMachine extends StateMachine { DEVICES_DISCONNECT_TIMEOUT_TIME); } else { mBluetoothService.switchConnectable(false); + sendMessageDelayed(POWER_DOWN_TIMEOUT, POWER_DOWN_TIMEOUT_TIME); } // we turn all the way to PowerOff with AIRPLANE_MODE_ON @@ -520,6 +554,12 @@ final class BluetoothAdapterStateMachine extends StateMachine { case PER_PROCESS_TURN_OFF: perProcessCallback(false, (IBluetoothStateChangeCallback)message.obj); break; + case POWER_STATE_CHANGED: + if ((Boolean) message.obj) { + // reset the state machine and send it TURN_ON_CONTINUE message + recoverStateMachine(USER_TURN_ON, false); + } + break; default: return NOT_HANDLED; } @@ -540,7 +580,7 @@ final class BluetoothAdapterStateMachine extends StateMachine { if (what == PER_PROCESS_TURN_ON) { isTurningOn = true; - } else if (what == PER_PROCESS_TURN_OFF) { + } else if (what == USER_TURN_OFF) { isTurningOn = false; } else { Log.e(TAG, "enter PerProcessState: wrong msg: " + what); @@ -568,12 +608,31 @@ final class BluetoothAdapterStateMachine extends StateMachine { } break; case POWER_STATE_CHANGED: + removeMessages(POWER_DOWN_TIMEOUT); if (!((Boolean) message.obj)) { transitionTo(mHotOff); if (!mContext.getResources().getBoolean (com.android.internal.R.bool.config_bluetooth_adapter_quick_switch)) { deferMessage(obtainMessage(TURN_COLD)); } + } else { + if (!isTurningOn) { + recoverStateMachine(TURN_COLD, null); + for (IBluetoothStateChangeCallback c: + mBluetoothService.getApplicationStateChangeCallbacks()) { + perProcessCallback(false, c); + deferMessage(obtainMessage(PER_PROCESS_TURN_ON, c)); + } + } + } + break; + case POWER_DOWN_TIMEOUT: + transitionTo(mHotOff); + Log.e(TAG, "Power-down timed out, resetting..."); + deferMessage(obtainMessage(TURN_COLD)); + if (mContext.getResources().getBoolean + (com.android.internal.R.bool.config_bluetooth_adapter_quick_switch)) { + deferMessage(obtainMessage(TURN_HOT)); } break; case USER_TURN_ON: @@ -616,10 +675,12 @@ final class BluetoothAdapterStateMachine extends StateMachine { perProcessCallback(false, (IBluetoothStateChangeCallback)message.obj); if (mBluetoothService.isApplicationStateChangeTrackerEmpty()) { mBluetoothService.switchConnectable(false); + sendMessageDelayed(POWER_DOWN_TIMEOUT, POWER_DOWN_TIMEOUT_TIME); } break; case AIRPLANE_MODE_ON: mBluetoothService.switchConnectable(false); + sendMessageDelayed(POWER_DOWN_TIMEOUT, POWER_DOWN_TIMEOUT_TIME); allProcessesCallback(false); // we turn all the way to PowerOff with AIRPLANE_MODE_ON deferMessage(obtainMessage(AIRPLANE_MODE_ON)); @@ -699,6 +760,17 @@ final class BluetoothAdapterStateMachine extends StateMachine { mContext.sendBroadcast(intent, BluetoothService.BLUETOOTH_PERM); } + /** + * bluetoothd has crashed and recovered, the adapter state machine has to + * reset itself and try to return to previous state + */ + private void recoverStateMachine(int what, Object obj) { + Log.e(TAG, "Get unexpected power on event, reset with: " + what); + transitionTo(mHotOff); + deferMessage(obtainMessage(TURN_COLD)); + deferMessage(obtainMessage(what, obj)); + } + private void dump(PrintWriter pw) { IState currentState = getCurrentState(); if (currentState == mPowerOff) { |