Merge changes from topic 'brightness' into mnc-dev

* changes:
  Add code to collect data about auto-brightness adjustments.
  Add float support to binary event log.

2 files changed, 22 insertions, 3 deletions

diff --git a/core/java/android/hardware/display/DisplayManagerInternal.java b/core/java/android/hardware/display/DisplayManagerInternal.java
index adab9be..02793f1 100644
--- a/core/java/android/hardware/display/DisplayManagerInternal.java
+++ b/core/java/android/hardware/display/DisplayManagerInternal.java
@@ -182,6 +182,10 @@ public abstract class DisplayManagerInternal {
         // The screen auto-brightness adjustment factor in the range -1 (dimmer) to 1 (brighter).
         public float screenAutoBrightnessAdjustment;
 
+        // Set to true if screenBrightness and screenAutoBrightnessAdjustment were both
+        // set by the user as opposed to being programmatically controlled by apps.
+        public boolean brightnessSetByUser;
+
         // If true, enables automatic brightness control.
         public boolean useAutoBrightness;
 
@@ -229,6 +233,7 @@ public abstract class DisplayManagerInternal {
             useProximitySensor = other.useProximitySensor;
             screenBrightness = other.screenBrightness;
             screenAutoBrightnessAdjustment = other.screenAutoBrightnessAdjustment;
+            brightnessSetByUser = other.brightnessSetByUser;
             useAutoBrightness = other.useAutoBrightness;
             blockScreenOn = other.blockScreenOn;
             lowPowerMode = other.lowPowerMode;
@@ -249,6 +254,7 @@ public abstract class DisplayManagerInternal {
                     && useProximitySensor == other.useProximitySensor
                     && screenBrightness == other.screenBrightness
                     && screenAutoBrightnessAdjustment == other.screenAutoBrightnessAdjustment
+                    && brightnessSetByUser == other.brightnessSetByUser
                     && useAutoBrightness == other.useAutoBrightness
                     && blockScreenOn == other.blockScreenOn
                     && lowPowerMode == other.lowPowerMode
@@ -268,6 +274,7 @@ public abstract class DisplayManagerInternal {
                     + ", useProximitySensor=" + useProximitySensor
                     + ", screenBrightness=" + screenBrightness
                     + ", screenAutoBrightnessAdjustment=" + screenAutoBrightnessAdjustment
+                    + ", brightnessSetByUser=" + brightnessSetByUser
                     + ", useAutoBrightness=" + useAutoBrightness
                     + ", blockScreenOn=" + blockScreenOn
                     + ", lowPowerMode=" + lowPowerMode
diff --git a/core/java/android/util/EventLog.java b/core/java/android/util/EventLog.java
index aefced8..558b8f5 100644
--- a/core/java/android/util/EventLog.java
+++ b/core/java/android/util/EventLog.java
@@ -74,6 +74,7 @@ public class EventLog {
         private static final byte LONG_TYPE   = 1;
         private static final byte STRING_TYPE = 2;
         private static final byte LIST_TYPE   = 3;
+        private static final byte FLOAT_TYPE = 4;
 
         /** @param data containing event, read from the system */
         /*package*/ Event(byte[] data) {
@@ -106,7 +107,7 @@ public class EventLog {
             return mBuffer.getInt(offset);
         }
 
-        /** @return one of Integer, Long, String, null, or Object[] of same. */
+        /** @return one of Integer, Long, Float, String, null, or Object[] of same. */
         public synchronized Object getData() {
             try {
                 int offset = mBuffer.getShort(HEADER_SIZE_OFFSET);
@@ -130,10 +131,13 @@ public class EventLog {
             byte type = mBuffer.get();
             switch (type) {
             case INT_TYPE:
-                return (Integer) mBuffer.getInt();
+                return mBuffer.getInt();
 
             case LONG_TYPE:
-                return (Long) mBuffer.getLong();
+                return mBuffer.getLong();
+
+            case FLOAT_TYPE:
+                return mBuffer.getFloat();
 
             case STRING_TYPE:
                 try {
@@ -180,6 +184,14 @@ public class EventLog {
     /**
      * Record an event log message.
      * @param tag The event type tag code
+     * @param value A value to log
+     * @return The number of bytes written
+     */
+    public static native int writeEvent(int tag, float value);
+
+    /**
+     * Record an event log message.
+     * @param tag The event type tag code
      * @param str A value to log
      * @return The number of bytes written
      */