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Backlight settings, preliminary, but works

based on CM9 code

Change-Id: Iddcbee98f6588bba428c4059e786d946d7ce2298
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1 parent d40edab commit a790e784e173e513db20423a9a4609c2ee195139 @tpruvot tpruvot committed with Whitehawkx Jul 25, 2012
@@ -46,4 +46,11 @@ interface IPowerManager
void setBacklightBrightness(int brightness);
void setAttentionLight(boolean on, int color);
void setAutoBrightnessAdjustment(float adj);
+
+ // custom backlight things
+ int getLightSensorValue();
+ int getRawLightSensorValue();
+ int getLightSensorScreenBrightness();
+ int getLightSensorButtonBrightness();
+ int getLightSensorKeyboardBrightness();
}
@@ -1469,6 +1469,136 @@ public static void setShowGTalkServiceStatus(ContentResolver cr, boolean flag) {
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.
*/
public static final String SHOW_PROCESSES = "show_processes";
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