diff options
Diffstat (limited to 'services/java/com/android/server/PowerManagerService.java')
| -rw-r--r-- | services/java/com/android/server/PowerManagerService.java | 87 |
1 files changed, 57 insertions, 30 deletions
diff --git a/services/java/com/android/server/PowerManagerService.java b/services/java/com/android/server/PowerManagerService.java index 289ab2a..2cc2704 100644 --- a/services/java/com/android/server/PowerManagerService.java +++ b/services/java/com/android/server/PowerManagerService.java @@ -17,8 +17,8 @@ package com.android.server; import com.android.internal.app.IBatteryStats; -import com.android.internal.app.ShutdownThread; import com.android.server.am.BatteryStatsService; +import com.android.server.pm.ShutdownThread; import android.app.ActivityManagerNative; import android.app.IActivityManager; @@ -47,7 +47,6 @@ import android.os.IBinder; import android.os.IPowerManager; import android.os.LocalPowerManager; import android.os.Message; -import android.os.Power; import android.os.PowerManager; import android.os.Process; import android.os.RemoteException; @@ -71,6 +70,7 @@ import static android.provider.Settings.System.WINDOW_ANIMATION_SCALE; import static android.provider.Settings.System.TRANSITION_ANIMATION_SCALE; import java.io.FileDescriptor; +import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; import java.util.HashMap; @@ -84,6 +84,12 @@ public class PowerManagerService extends IPowerManager.Stub private static final String TAG = "PowerManagerService"; static final String PARTIAL_NAME = "PowerManagerService"; + // Wake lock that ensures that the CPU is running. The screen might not be on. + private static final int PARTIAL_WAKE_LOCK_ID = 1; + + // Wake lock that ensures that the screen is on. + private static final int FULL_WAKE_LOCK_ID = 2; + static final boolean DEBUG_SCREEN_ON = false; private static final boolean LOG_PARTIAL_WL = false; @@ -134,6 +140,10 @@ public class PowerManagerService extends IPowerManager.Stub // Screen brightness should always have a value, but just in case... private static final int DEFAULT_SCREEN_BRIGHTNESS = 192; + // Threshold for BRIGHTNESS_LOW_BATTERY (percentage) + // Screen will stay dim if battery level is <= LOW_BATTERY_THRESHOLD + private static final int LOW_BATTERY_THRESHOLD = 10; + // flags for setPowerState private static final int ALL_LIGHTS_OFF = 0x00000000; private static final int SCREEN_ON_BIT = 0x00000001; @@ -175,8 +185,8 @@ public class PowerManagerService extends IPowerManager.Stub // we should read them from the driver, but our current hardware returns 0 // for the initial value. Oops! static final int INITIAL_SCREEN_BRIGHTNESS = 255; - static final int INITIAL_BUTTON_BRIGHTNESS = Power.BRIGHTNESS_OFF; - static final int INITIAL_KEYBOARD_BRIGHTNESS = Power.BRIGHTNESS_OFF; + static final int INITIAL_BUTTON_BRIGHTNESS = PowerManager.BRIGHTNESS_OFF; + static final int INITIAL_KEYBOARD_BRIGHTNESS = PowerManager.BRIGHTNESS_OFF; private final int MY_UID; private final int MY_PID; @@ -296,6 +306,11 @@ public class PowerManagerService extends IPowerManager.Stub private native void nativeInit(); private native void nativeSetPowerState(boolean screenOn, boolean screenBright); private native void nativeStartSurfaceFlingerAnimation(int mode); + private static native void nativeAcquireWakeLock(int lock, String id); + private static native void nativeReleaseWakeLock(String id); + private static native int nativeSetScreenState(boolean on); + private static native void nativeShutdown(); + private static native void nativeReboot(String reason) throws IOException; /* static PrintStream mLog; @@ -515,14 +530,13 @@ public class PowerManagerService extends IPowerManager.Stub MY_PID = Process.myPid(); Binder.restoreCallingIdentity(token); - // XXX remove this when the kernel doesn't timeout wake locks - Power.setLastUserActivityTimeout(7*24*3600*1000); // one week - // assume nothing is on yet mUserState = mPowerState = 0; // Add ourself to the Watchdog monitors. Watchdog.getInstance().addMonitor(this); + + nativeInit(); } private ContentQueryMap mSettings; @@ -541,11 +555,6 @@ public class PowerManagerService extends IPowerManager.Stub mAttentionLight = lights.getLight(LightsService.LIGHT_ID_ATTENTION); mHeadless = "1".equals(SystemProperties.get("ro.config.headless", "0")); - nativeInit(); - synchronized (mLocks) { - updateNativePowerStateLocked(); - } - mInitComplete = false; mScreenBrightnessAnimator = new ScreenBrightnessAnimator("mScreenBrightnessUpdaterThread", Process.THREAD_PRIORITY_DISPLAY); @@ -581,8 +590,6 @@ public class PowerManagerService extends IPowerManager.Stub } } - nativeInit(); - Power.powerInitNative(); synchronized (mLocks) { updateNativePowerStateLocked(); // We make sure to start out with the screen on due to user activity. @@ -686,6 +693,26 @@ public class PowerManagerService extends IPowerManager.Stub } } + /** + * Low-level function turn the device off immediately, without trying + * to be clean. Most people should use + * {@link com.android.server.pm.internal.app.ShutdownThread} for a clean shutdown. + */ + public static void lowLevelShutdown() { + nativeShutdown(); + } + + /** + * Low-level function to 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 lowLevelReboot(String reason) throws IOException { + nativeReboot(reason); + } + private class WakeLock implements IBinder.DeathRecipient { WakeLock(int f, IBinder b, String t, int u, int p) { @@ -926,7 +953,7 @@ public class PowerManagerService extends IPowerManager.Stub if (LOG_PARTIAL_WL) EventLog.writeEvent(EventLogTags.POWER_PARTIAL_WAKE_STATE, 1, tag); } } - Power.acquireWakeLock(Power.PARTIAL_WAKE_LOCK,PARTIAL_NAME); + nativeAcquireWakeLock(PARTIAL_WAKE_LOCK_ID, PARTIAL_NAME); } if (diffsource) { @@ -1010,7 +1037,7 @@ public class PowerManagerService extends IPowerManager.Stub mPartialCount--; if (mPartialCount == 0) { if (LOG_PARTIAL_WL) EventLog.writeEvent(EventLogTags.POWER_PARTIAL_WAKE_STATE, 0, wl.tag); - Power.releaseWakeLock(PARTIAL_NAME); + nativeReleaseWakeLock(PARTIAL_NAME); } } // Unlink the lock from the binder. @@ -1719,10 +1746,10 @@ public class PowerManagerService extends IPowerManager.Stub + " mSkippedScreenOn=" + mSkippedScreenOn); } mScreenBrightnessHandler.removeMessages(ScreenBrightnessAnimator.ANIMATE_LIGHTS); - mScreenBrightnessAnimator.animateTo(Power.BRIGHTNESS_OFF, SCREEN_BRIGHT_BIT, 0); + mScreenBrightnessAnimator.animateTo(PowerManager.BRIGHTNESS_OFF, SCREEN_BRIGHT_BIT, 0); } } - int err = Power.setScreenState(on); + int err = nativeSetScreenState(on); if (err == 0) { mLastScreenOnTime = (on ? SystemClock.elapsedRealtime() : 0); if (mUseSoftwareAutoBrightness) { @@ -1934,7 +1961,7 @@ public class PowerManagerService extends IPowerManager.Stub private boolean batteryIsLow() { return (!mIsPowered && - mBatteryService.getBatteryLevel() <= Power.LOW_BATTERY_THRESHOLD); + mBatteryService.getBatteryLevel() <= LOW_BATTERY_THRESHOLD); } private boolean shouldDeferScreenOnLocked() { @@ -2024,7 +2051,7 @@ public class PowerManagerService extends IPowerManager.Stub nominalCurrentValue = mScreenBrightnessDim; break; case 0: - nominalCurrentValue = Power.BRIGHTNESS_OFF; + nominalCurrentValue = PowerManager.BRIGHTNESS_OFF; break; case SCREEN_BRIGHT_BIT: default: @@ -2050,7 +2077,7 @@ public class PowerManagerService extends IPowerManager.Stub // was dim steps = (int)(ANIM_STEPS*ratio*scale); } - brightness = Power.BRIGHTNESS_OFF; + brightness = PowerManager.BRIGHTNESS_OFF; } else { if ((oldState & SCREEN_ON_BIT) != 0) { // was bright @@ -2101,13 +2128,13 @@ public class PowerManagerService extends IPowerManager.Stub if (offMask != 0) { if (mSpew) Slog.i(TAG, "Setting brightess off: " + offMask); - setLightBrightness(offMask, Power.BRIGHTNESS_OFF); + setLightBrightness(offMask, PowerManager.BRIGHTNESS_OFF); } if (dimMask != 0) { int brightness = mScreenBrightnessDim; if ((newState & BATTERY_LOW_BIT) != 0 && - brightness > Power.BRIGHTNESS_LOW_BATTERY) { - brightness = Power.BRIGHTNESS_LOW_BATTERY; + brightness > PowerManager.BRIGHTNESS_LOW_BATTERY) { + brightness = PowerManager.BRIGHTNESS_LOW_BATTERY; } if (mSpew) Slog.i(TAG, "Setting brightess dim " + brightness + ": " + dimMask); setLightBrightness(dimMask, brightness); @@ -2115,8 +2142,8 @@ public class PowerManagerService extends IPowerManager.Stub if (onMask != 0) { int brightness = getPreferredBrightness(); if ((newState & BATTERY_LOW_BIT) != 0 && - brightness > Power.BRIGHTNESS_LOW_BATTERY) { - brightness = Power.BRIGHTNESS_LOW_BATTERY; + brightness > PowerManager.BRIGHTNESS_LOW_BATTERY) { + brightness = PowerManager.BRIGHTNESS_LOW_BATTERY; } if (mSpew) Slog.i(TAG, "Setting brightess on " + brightness + ": " + onMask); setLightBrightness(onMask, brightness); @@ -2198,8 +2225,8 @@ public class PowerManagerService extends IPowerManager.Stub if (elapsed < duration) { int delta = endValue - startValue; newValue = startValue + delta * elapsed / duration; - newValue = Math.max(Power.BRIGHTNESS_OFF, newValue); - newValue = Math.min(Power.BRIGHTNESS_ON, newValue); + newValue = Math.max(PowerManager.BRIGHTNESS_OFF, newValue); + newValue = Math.min(PowerManager.BRIGHTNESS_ON, newValue); } else { newValue = endValue; mInitialAnimation = false; @@ -2249,7 +2276,7 @@ public class PowerManagerService extends IPowerManager.Stub if (target != currentValue) { final boolean doScreenAnim = (mask & (SCREEN_BRIGHT_BIT | SCREEN_ON_BIT)) != 0; - final boolean turningOff = endValue == Power.BRIGHTNESS_OFF; + final boolean turningOff = endValue == PowerManager.BRIGHTNESS_OFF; if (turningOff && doScreenAnim) { // Cancel all pending animations since we're turning off mScreenBrightnessHandler.removeCallbacksAndMessages(null); @@ -2353,7 +2380,7 @@ public class PowerManagerService extends IPowerManager.Stub private boolean isScreenTurningOffLocked() { return (mScreenBrightnessAnimator.isAnimating() - && mScreenBrightnessAnimator.endValue == Power.BRIGHTNESS_OFF); + && mScreenBrightnessAnimator.endValue == PowerManager.BRIGHTNESS_OFF); } private boolean shouldLog(long time) { |