Pimp automatic backlight. (736878a6) · Commits · e / os / android_frameworks_base

core/java/android/os/IPowerManager.aidl

+7 −0

Original line number	Diff line number	Diff line
		@@ -38,4 +38,11 @@ interface IPowerManager
		// sets the brightness of the backlights (screen, keyboard, button) 0-255
		void setBacklightBrightness(int brightness);
		void setAttentionLight(boolean on, int color);

		// custom backlight things
		int getLightSensorValue();
		int getRawLightSensorValue();
		int getLightSensorScreenBrightness();
		int getLightSensorButtonBrightness();
		int getLightSensorKeyboardBrightness();
		}

core/java/android/provider/Settings.java

+130 −0

Original line number	Diff line number	Diff line
		@@ -1270,6 +1270,136 @@ public final class Settings {
		*/
		public static final int SCREEN_BRIGHTNESS_MODE_AUTOMATIC = 1;

		/**
		* Indicates that custom light sensor settings has changed.
		* The value is random and changes reloads light settings.
		*
		* @hide
		*/
		public static final String LIGHTS_CHANGED = "lights_changed";

		/**
		* Whether custom light sensor levels & values are enabled. The value is
		* boolean (1 or 0).
		*
		* @hide
		*/
		public static final String LIGHT_SENSOR_CUSTOM = "light_sensor_custom";

		/**
		* Screen dim value to use if LIGHT_SENSOR_CUSTOM is set. The value is int.
		* Default is android.os.BRIGHTNESS_DIM.
		*
		* @hide
		*/
		public static final String LIGHT_SCREEN_DIM = "light_screen_dim";

		/**
		* Custom light sensor levels. The value is a comma separated int array
		* with length N.
		* Example: "100,300,3000".
		*
		* @hide
		*/
		public static final String LIGHT_SENSOR_LEVELS = "light_sensor_levels";

		/**
		* Custom light sensor lcd values. The value is a comma separated int array
		* with length N+1.
		* Example: "10,50,100,255".
		*
		* @hide
		*/
		public static final String LIGHT_SENSOR_LCD_VALUES = "light_sensor_lcd_values";

		/**
		* Custom light sensor lcd values. The value is a comma separated int array
		* with length N+1.
		* Example: "10,50,100,255".
		*
		* @hide
		*/
		public static final String LIGHT_SENSOR_BUTTON_VALUES = "light_sensor_button_values";

		/**
		* Custom light sensor lcd values. The value is a comma separated int array
		* with length N+1.
		* Example: "10,50,100,255".
		*
		* @hide
		*/
		public static final String LIGHT_SENSOR_KEYBOARD_VALUES = "light_sensor_keyboard_values";

		/**
		* Whether light sensor is allowed to decrease when calculating automatic
		* backlight. The value is boolean (1 or 0).
		*
		* @hide
		*/
		public static final String LIGHT_DECREASE = "light_decrease";

		/**
		* Light sensor hysteresis for decreasing backlight. The value is
		* int (0-99) representing % (0-0.99 as float). Example:
		*
		* Levels Output
		* 0 - 100 50
		* 100 - 200 100
		* 200 - Inf 255
		*
		* Current sensor value is 150 which gives light value 100. Hysteresis is 50.
		* Current level lower bound is 100 and previous lower bound is 0.
		* Sensor value must drop below 100-(100-0)*(50/100)=50 for output to become 50
		* (corresponding to the 0 - 100 level).
		* @hide
		*/
		public static final String LIGHT_HYSTERESIS = "light_hysteresis";

		/**
		* Whether light sensor used when calculating automatic backlight should
		* be filtered through an moving average filter.
		* The value is boolean (1 or 0).
		*
		* @hide
		*/
		public static final String LIGHT_FILTER = "light_filter";

		/**
		* Window length of filter used when calculating automatic backlight.
		* One minute means that the average sensor value last minute is used.
		* The value is integer (milliseconds)
		*
		* @hide
		*/
		public static final String LIGHT_FILTER_WINDOW = "light_filter_window";

		/**
		* Reset threshold of filter used when calculating automatic backlight.
		* Sudden large jumps in sensor value resets the filter. This is used
		* to make the filter respond quickly to large enough changes in input
		* while still filtering small changes. Example:
		*
		* Current filter value (average) is 100 and sensor value is changing to
		* 10, 150, 100, 30, 50. The filter is continously taking the average of
		* the samples. Now the user goes outside and the value jumps over 1000.
		* The difference between current average and new sample is larger than
		* the reset threshold and filter is reset. It begins calculating a new
		* average on samples around 1000 (say, 800, 1200, 1000, 1100 etc.)
		*
		* The value is integer (lux)
		*
		* @hide
		*/
		public static final String LIGHT_FILTER_RESET = "light_filter_reset";

		/**
		* Sample interval of filter used when calculating automatic backlight.
		* The value is integer (milliseconds)
		*
		* @hide
		*/
		public static final String LIGHT_FILTER_INTERVAL = "light_filter_interval";

		/**
		* Control whether the process CPU usage meter should be shown.
		*/

services/java/com/android/server/PowerManagerService.java

+371 −15

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