1 files changed, 130 insertions, 0 deletions
diff --git a/core/java/android/os/Power.java b/core/java/android/os/Power.java
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+++ b/core/java/android/os/Power.java
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+/*
+ * 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;
+
+/**
+ * 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);
+
+    /**
+     * Flag to turn on and off the keyboard light.
+     */
+    public static final int KEYBOARD_LIGHT = 0x00000001;
+
+    /**
+     * Flag to turn on and off the screen backlight.
+     */
+    public static final int SCREEN_LIGHT = 0x00000002;
+
+    /**
+     * Flag to turn on and off the button backlight.
+     */
+    public static final int BUTTON_LIGHT = 0x00000004;
+
+    /**
+     * Flags to turn on and off all the backlights.
+     */
+    public static final int ALL_LIGHTS = (KEYBOARD_LIGHT|SCREEN_LIGHT|BUTTON_LIGHT);
+
+    /**
+     * 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;
+
+    /**
+     * Set the brightness for one or more lights
+     *
+     * @param mask flags indicating which lights to change brightness
+     * @param brightness new brightness value (0 = off, 255 = fully bright)
+     */
+    public static native int setLightBrightness(int mask, int brightness);
+
+    /**
+     * 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);
+
+    /**
+     * Turn the device off.
+     *
+     * This method is considered deprecated in favor of
+     * {@link android.policy.ShutdownThread.shutdownAfterDisablingRadio()}.
+     *
+     * @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 native void reboot(String reason) throws IOException;
+}