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Merge "Move power HAL interactions to PowerManagerService." into jb-dev

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This commit is contained in:
Jeff Brown
2012-05-11 19:32:56 -07:00
committed by Android (Google) Code Review
parent dca5fb9e7e 7304c34382
commit 5877023221
17 changed files with 221 additions and 311 deletions
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109
core/java/android/os/Power.java
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@@ -1,109 +0,0 @@
/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.os;
import java.io.IOException;
import android.os.ServiceManager;
/**
* Class that provides access to some of the power management functions.
*
* {@hide}
*/
public class Power
{
// can't instantiate this class
private Power()
{
}
/**
* Wake lock that ensures that the CPU is running. The screen might
* not be on.
*/
public static final int PARTIAL_WAKE_LOCK = 1;
/**
* Wake lock that ensures that the screen is on.
*/
public static final int FULL_WAKE_LOCK = 2;
public static native void acquireWakeLock(int lock, String id);
public static native void releaseWakeLock(String id);
/**
* Brightness value for fully off
*/
public static final int BRIGHTNESS_OFF = 0;
/**
* Brightness value for dim backlight
*/
public static final int BRIGHTNESS_DIM = 20;
/**
* Brightness value for fully on
*/
public static final int BRIGHTNESS_ON = 255;
/**
* Brightness value to use when battery is low
*/
public static final int BRIGHTNESS_LOW_BATTERY = 10;
/**
* Threshold for BRIGHTNESS_LOW_BATTERY (percentage)
* Screen will stay dim if battery level is <= LOW_BATTERY_THRESHOLD
*/
public static final int LOW_BATTERY_THRESHOLD = 10;
/**
* Turn the screen on or off
*
* @param on Whether you want the screen on or off
*/
public static native int setScreenState(boolean on);
public static native int setLastUserActivityTimeout(long ms);
/**
* Low-level function turn the device off immediately, without trying
* to be clean. Most people should use
* {@link android.internal.app.ShutdownThread} for a clean shutdown.
*
* @deprecated
* @hide
*/
@Deprecated
public static native void shutdown();
/**
* Reboot the device.
* @param reason code to pass to the kernel (e.g. "recovery"), or null.
*
* @throws IOException if reboot fails for some reason (eg, lack of
* permission)
*/
public static void reboot(String reason) throws IOException
{
rebootNative(reason);
}
private static native void rebootNative(String reason) throws IOException ;
public static native int powerInitNative();
}

26
core/java/android/os/PowerManager.java
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@@ -197,7 +197,31 @@ public class PowerManager
* Does not work with PARTIAL_WAKE_LOCKs.
*/
public static final int ON_AFTER_RELEASE = 0x20000000;
/**
* Brightness value to use when battery is low.
* @hide
*/
public static final int BRIGHTNESS_LOW_BATTERY = 10;
/**
* Brightness value for fully on.
* @hide
*/
public static final int BRIGHTNESS_ON = 255;
/**
* Brightness value for dim backlight.
* @hide
*/
public static final int BRIGHTNESS_DIM = 20;
/**
* Brightness value for fully off.
* @hide
*/
public static final int BRIGHTNESS_OFF = 0;
/**
* Class lets you say that you need to have the device on.
* <p>

3
core/java/android/view/WindowManagerPolicy.java
View File

@@ -397,6 +397,9 @@ public interface WindowManagerPolicy {
* Creates an input channel that will receive all input from the input dispatcher.
*/
public InputChannel monitorInput(String name);
public void shutdown();
public void rebootSafeMode();
}
/**

484
core/java/com/android/internal/app/ShutdownThread.java
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@@ -1,484 +0,0 @@
/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.internal.app;
import android.app.ActivityManagerNative;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.IActivityManager;
import android.app.ProgressDialog;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.IBluetooth;
import android.nfc.NfcAdapter;
import android.nfc.INfcAdapter;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Handler;
import android.os.Power;
import android.os.PowerManager;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.SystemClock;
import android.os.SystemProperties;
import android.os.Vibrator;
import android.os.SystemVibrator;
import android.os.storage.IMountService;
import android.os.storage.IMountShutdownObserver;
import com.android.internal.telephony.ITelephony;
import android.util.Log;
import android.view.WindowManager;
public final class ShutdownThread extends Thread {
// constants
private static final String TAG = "ShutdownThread";
private static final int MAX_NUM_PHONE_STATE_READS = 24;
private static final int PHONE_STATE_POLL_SLEEP_MSEC = 500;
// maximum time we wait for the shutdown broadcast before going on.
private static final int MAX_BROADCAST_TIME = 10*1000;
private static final int MAX_SHUTDOWN_WAIT_TIME = 20*1000;
// length of vibration before shutting down
private static final int SHUTDOWN_VIBRATE_MS = 500;
// state tracking
private static Object sIsStartedGuard = new Object();
private static boolean sIsStarted = false;
private static boolean mReboot;
private static boolean mRebootSafeMode;
private static String mRebootReason;
// Provides shutdown assurance in case the system_server is killed
public static final String SHUTDOWN_ACTION_PROPERTY = "sys.shutdown.requested";
// Indicates whether we are rebooting into safe mode
public static final String REBOOT_SAFEMODE_PROPERTY = "persist.sys.safemode";
// static instance of this thread
private static final ShutdownThread sInstance = new ShutdownThread();
private final Object mActionDoneSync = new Object();
private boolean mActionDone;
private Context mContext;
private PowerManager mPowerManager;
private PowerManager.WakeLock mCpuWakeLock;
private PowerManager.WakeLock mScreenWakeLock;
private Handler mHandler;
private ShutdownThread() {
}
/**
* Request a clean shutdown, waiting for subsystems to clean up their
* state etc. Must be called from a Looper thread in which its UI
* is shown.
*
* @param context Context used to display the shutdown progress dialog.
* @param confirm true if user confirmation is needed before shutting down.
*/
public static void shutdown(final Context context, boolean confirm) {
mReboot = false;
mRebootSafeMode = false;
shutdownInner(context, confirm);
}
static void shutdownInner(final Context context, boolean confirm) {
// ensure that only one thread is trying to power down.
// any additional calls are just returned
synchronized (sIsStartedGuard) {
if (sIsStarted) {
Log.d(TAG, "Request to shutdown already running, returning.");
return;
}
}
final int longPressBehavior = context.getResources().getInteger(
com.android.internal.R.integer.config_longPressOnPowerBehavior);
final int resourceId = mRebootSafeMode
? com.android.internal.R.string.reboot_safemode_confirm
: (longPressBehavior == 2
? com.android.internal.R.string.shutdown_confirm_question
: com.android.internal.R.string.shutdown_confirm);
Log.d(TAG, "Notifying thread to start shutdown longPressBehavior=" + longPressBehavior);
if (confirm) {
final CloseDialogReceiver closer = new CloseDialogReceiver(context);
final AlertDialog dialog = new AlertDialog.Builder(context)
.setTitle(mRebootSafeMode
? com.android.internal.R.string.reboot_safemode_title
: com.android.internal.R.string.power_off)
.setMessage(resourceId)
.setPositiveButton(com.android.internal.R.string.yes, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
beginShutdownSequence(context);
}
})
.setNegativeButton(com.android.internal.R.string.no, null)
.create();
closer.dialog = dialog;
dialog.setOnDismissListener(closer);
dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);
dialog.show();
} else {
beginShutdownSequence(context);
}
}
private static class CloseDialogReceiver extends BroadcastReceiver
implements DialogInterface.OnDismissListener {
private Context mContext;
public Dialog dialog;
CloseDialogReceiver(Context context) {
mContext = context;
IntentFilter filter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
context.registerReceiver(this, filter);
}
@Override
public void onReceive(Context context, Intent intent) {
dialog.cancel();
}
public void onDismiss(DialogInterface unused) {
mContext.unregisterReceiver(this);
}
}
/**
* Request a clean shutdown, waiting for subsystems to clean up their
* state etc. Must be called from a Looper thread in which its UI
* is shown.
*
* @param context Context used to display the shutdown progress dialog.
* @param reason code to pass to the kernel (e.g. "recovery"), or null.
* @param confirm true if user confirmation is needed before shutting down.
*/
public static void reboot(final Context context, String reason, boolean confirm) {
mReboot = true;
mRebootSafeMode = false;
mRebootReason = reason;
shutdownInner(context, confirm);
}
/**
* Request a reboot into safe mode. Must be called from a Looper thread in which its UI
* is shown.
*
* @param context Context used to display the shutdown progress dialog.
* @param confirm true if user confirmation is needed before shutting down.
*/
public static void rebootSafeMode(final Context context, boolean confirm) {
mReboot = true;
mRebootSafeMode = true;
mRebootReason = null;
shutdownInner(context, confirm);
}
private static void beginShutdownSequence(Context context) {
synchronized (sIsStartedGuard) {
if (sIsStarted) {
Log.d(TAG, "Shutdown sequence already running, returning.");
return;
}
sIsStarted = true;
}
// throw up an indeterminate system dialog to indicate radio is
// shutting down.
ProgressDialog pd = new ProgressDialog(context);
pd.setTitle(context.getText(com.android.internal.R.string.power_off));
pd.setMessage(context.getText(com.android.internal.R.string.shutdown_progress));
pd.setIndeterminate(true);
pd.setCancelable(false);
pd.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);
pd.show();
sInstance.mContext = context;
sInstance.mPowerManager = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
// make sure we never fall asleep again
sInstance.mCpuWakeLock = null;
try {
sInstance.mCpuWakeLock = sInstance.mPowerManager.newWakeLock(
PowerManager.PARTIAL_WAKE_LOCK, TAG + "-cpu");
sInstance.mCpuWakeLock.setReferenceCounted(false);
sInstance.mCpuWakeLock.acquire();
} catch (SecurityException e) {
Log.w(TAG, "No permission to acquire wake lock", e);
sInstance.mCpuWakeLock = null;
}
// also make sure the screen stays on for better user experience
sInstance.mScreenWakeLock = null;
if (sInstance.mPowerManager.isScreenOn()) {
try {
sInstance.mScreenWakeLock = sInstance.mPowerManager.newWakeLock(
PowerManager.FULL_WAKE_LOCK, TAG + "-screen");
sInstance.mScreenWakeLock.setReferenceCounted(false);
sInstance.mScreenWakeLock.acquire();
} catch (SecurityException e) {
Log.w(TAG, "No permission to acquire wake lock", e);
sInstance.mScreenWakeLock = null;
}
}
// start the thread that initiates shutdown
sInstance.mHandler = new Handler() {
};
sInstance.start();
}
void actionDone() {
synchronized (mActionDoneSync) {
mActionDone = true;
mActionDoneSync.notifyAll();
}
}
/**
* Makes sure we handle the shutdown gracefully.
* Shuts off power regardless of radio and bluetooth state if the alloted time has passed.
*/
public void run() {
boolean nfcOff;
boolean bluetoothOff;
boolean radioOff;
BroadcastReceiver br = new BroadcastReceiver() {
@Override public void onReceive(Context context, Intent intent) {
// We don't allow apps to cancel this, so ignore the result.
actionDone();
}
};
/*
* Write a system property in case the system_server reboots before we
* get to the actual hardware restart. If that happens, we'll retry at
* the beginning of the SystemServer startup.
*/
{
String reason = (mReboot ? "1" : "0") + (mRebootReason != null ? mRebootReason : "");
SystemProperties.set(SHUTDOWN_ACTION_PROPERTY, reason);
}
/*
* If we are rebooting into safe mode, write a system property
* indicating so.
*/
if (mRebootSafeMode) {
SystemProperties.set(REBOOT_SAFEMODE_PROPERTY, "1");
}
Log.i(TAG, "Sending shutdown broadcast...");
// First send the high-level shut down broadcast.
mActionDone = false;
mContext.sendOrderedBroadcast(new Intent(Intent.ACTION_SHUTDOWN), null,
br, mHandler, 0, null, null);
final long endTime = SystemClock.elapsedRealtime() + MAX_BROADCAST_TIME;
synchronized (mActionDoneSync) {
while (!mActionDone) {
long delay = endTime - SystemClock.elapsedRealtime();
if (delay <= 0) {
Log.w(TAG, "Shutdown broadcast timed out");
break;
}
try {
mActionDoneSync.wait(delay);
} catch (InterruptedException e) {
}
}
}
Log.i(TAG, "Shutting down activity manager...");
final IActivityManager am =
ActivityManagerNative.asInterface(ServiceManager.checkService("activity"));
if (am != null) {
try {
am.shutdown(MAX_BROADCAST_TIME);
} catch (RemoteException e) {
}
}
final INfcAdapter nfc =
INfcAdapter.Stub.asInterface(ServiceManager.checkService("nfc"));
final ITelephony phone =
ITelephony.Stub.asInterface(ServiceManager.checkService("phone"));
final IBluetooth bluetooth =
IBluetooth.Stub.asInterface(ServiceManager.checkService(
BluetoothAdapter.BLUETOOTH_SERVICE));
final IMountService mount =
IMountService.Stub.asInterface(
ServiceManager.checkService("mount"));
try {
nfcOff = nfc == null ||
nfc.getState() == NfcAdapter.STATE_OFF;
if (!nfcOff) {
Log.w(TAG, "Turning off NFC...");
nfc.disable(false); // Don't persist new state
}
} catch (RemoteException ex) {
Log.e(TAG, "RemoteException during NFC shutdown", ex);
nfcOff = true;
}
try {
bluetoothOff = bluetooth == null ||
bluetooth.getBluetoothState() == BluetoothAdapter.STATE_OFF;
if (!bluetoothOff) {
Log.w(TAG, "Disabling Bluetooth...");
bluetooth.disable(false); // disable but don't persist new state
}
} catch (RemoteException ex) {
Log.e(TAG, "RemoteException during bluetooth shutdown", ex);
bluetoothOff = true;
}
try {
radioOff = phone == null || !phone.isRadioOn();
if (!radioOff) {
Log.w(TAG, "Turning off radio...");
phone.setRadio(false);
}
} catch (RemoteException ex) {
Log.e(TAG, "RemoteException during radio shutdown", ex);
radioOff = true;
}
Log.i(TAG, "Waiting for NFC, Bluetooth and Radio...");
// Wait a max of 32 seconds for clean shutdown
for (int i = 0; i < MAX_NUM_PHONE_STATE_READS; i++) {
if (!bluetoothOff) {
try {
bluetoothOff =
bluetooth.getBluetoothState() == BluetoothAdapter.STATE_OFF;
} catch (RemoteException ex) {
Log.e(TAG, "RemoteException during bluetooth shutdown", ex);
bluetoothOff = true;
}
}
if (!radioOff) {
try {
radioOff = !phone.isRadioOn();
} catch (RemoteException ex) {
Log.e(TAG, "RemoteException during radio shutdown", ex);
radioOff = true;
}
}
if (!nfcOff) {
try {
nfcOff = nfc.getState() == NfcAdapter.STATE_OFF;
} catch (RemoteException ex) {
Log.e(TAG, "RemoteException during NFC shutdown", ex);
nfcOff = true;
}
}
if (radioOff && bluetoothOff && nfcOff) {
Log.i(TAG, "NFC, Radio and Bluetooth shutdown complete.");
break;
}
SystemClock.sleep(PHONE_STATE_POLL_SLEEP_MSEC);
}
// Shutdown MountService to ensure media is in a safe state
IMountShutdownObserver observer = new IMountShutdownObserver.Stub() {
public void onShutDownComplete(int statusCode) throws RemoteException {
Log.w(TAG, "Result code " + statusCode + " from MountService.shutdown");
actionDone();
}
};
Log.i(TAG, "Shutting down MountService");
// Set initial variables and time out time.
mActionDone = false;
final long endShutTime = SystemClock.elapsedRealtime() + MAX_SHUTDOWN_WAIT_TIME;
synchronized (mActionDoneSync) {
try {
if (mount != null) {
mount.shutdown(observer);
} else {
Log.w(TAG, "MountService unavailable for shutdown");
}
} catch (Exception e) {
Log.e(TAG, "Exception during MountService shutdown", e);
}
while (!mActionDone) {
long delay = endShutTime - SystemClock.elapsedRealtime();
if (delay <= 0) {
Log.w(TAG, "Shutdown wait timed out");
break;
}
try {
mActionDoneSync.wait(delay);
} catch (InterruptedException e) {
}
}
}
rebootOrShutdown(mReboot, mRebootReason);
}
/**
* Do not call this directly. Use {@link #reboot(Context, String, boolean)}
* or {@link #shutdown(Context, boolean)} instead.
*
* @param reboot true to reboot or false to shutdown
* @param reason reason for reboot
*/
public static void rebootOrShutdown(boolean reboot, String reason) {
if (reboot) {
Log.i(TAG, "Rebooting, reason: " + reason);
try {
Power.reboot(reason);
} catch (Exception e) {
Log.e(TAG, "Reboot failed, will attempt shutdown instead", e);
}
} else if (SHUTDOWN_VIBRATE_MS > 0) {
// vibrate before shutting down
Vibrator vibrator = new SystemVibrator();
try {
vibrator.vibrate(SHUTDOWN_VIBRATE_MS);
} catch (Exception e) {
// Failure to vibrate shouldn't interrupt shutdown. Just log it.
Log.w(TAG, "Failed to vibrate during shutdown.", e);
}
// vibrator is asynchronous so we need to wait to avoid shutting down too soon.
try {
Thread.sleep(SHUTDOWN_VIBRATE_MS);
} catch (InterruptedException unused) {
}
}
// Shutdown power
Log.i(TAG, "Performing low-level shutdown...");
Power.shutdown();
}
}