From b4aa2e9c37881197fa939d8ee29d21dfdc962e40 Mon Sep 17 00:00:00 2001
From: Ruchi Kandoi <kandoiruchi@google.com>
Date: Wed, 30 Mar 2016 12:07:31 -0700
Subject: [PATCH] PowerManager: Adds isSustainedPerformanceModeSupported()

isSustainedPerformanceModeSupported() returns true if the device
supports the mode. It checks for the boolean config
"config_sustainedPerformanceModeSupported" to be set.

Bug: 22864186
Change-Id: I0f9f0bcbb8c02b19f37e9c87570d88e8f78f7992
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>
---
 api/current.txt                        |  1 +
 api/system-current.txt                 |  1 +
 api/test-current.txt                   |  1 +
 core/java/android/os/PowerManager.java | 10 ++++++++++
 core/res/res/values/config.xml         |  3 +++
 core/res/res/values/symbols.xml        |  2 ++
 6 files changed, 18 insertions(+)

diff --git a/api/current.txt b/api/current.txt
index 1b331ac3f07d6..051ad92630f8f 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -29074,6 +29074,7 @@ package android.os {
     method public boolean isInteractive();
     method public boolean isPowerSaveMode();
     method public deprecated boolean isScreenOn();
+    method public boolean isSustainedPerformanceModeSupported();
     method public boolean isWakeLockLevelSupported(int);
     method public android.os.PowerManager.WakeLock newWakeLock(int, java.lang.String);
     method public void reboot(java.lang.String);
diff --git a/api/system-current.txt b/api/system-current.txt
index 867675c337ee5..b21a7842eba5e 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -31307,6 +31307,7 @@ package android.os {
     method public boolean isPowerSaveMode();
     method public boolean isScreenBrightnessBoosted();
     method public deprecated boolean isScreenOn();
+    method public boolean isSustainedPerformanceModeSupported();
     method public boolean isWakeLockLevelSupported(int);
     method public android.os.PowerManager.WakeLock newWakeLock(int, java.lang.String);
     method public void reboot(java.lang.String);
diff --git a/api/test-current.txt b/api/test-current.txt
index f60aab14c1723..2165b327f6cf6 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -29139,6 +29139,7 @@ package android.os {
     method public boolean isInteractive();
     method public boolean isPowerSaveMode();
     method public deprecated boolean isScreenOn();
+    method public boolean isSustainedPerformanceModeSupported();
     method public boolean isWakeLockLevelSupported(int);
     method public android.os.PowerManager.WakeLock newWakeLock(int, java.lang.String);
     method public void reboot(java.lang.String);
diff --git a/core/java/android/os/PowerManager.java b/core/java/android/os/PowerManager.java
index a0a16f1a89305..ce176a3691867 100644
--- a/core/java/android/os/PowerManager.java
+++ b/core/java/android/os/PowerManager.java
@@ -1030,6 +1030,16 @@ public final class PowerManager {
         }
     }
 
+    /**
+     * Returns True if the device supports Sustained Performance Mode.
+     * Applications Should check if the device supports this mode, before
+     * using {@link #SUSTAINED_PERFORMANCE_WAKE_LOCK}.
+     */
+    public boolean isSustainedPerformanceModeSupported() {
+        return mContext.getResources().getBoolean(
+                com.android.internal.R.bool.config_sustainedPerformanceModeSupported);
+    }
+
     /**
      * Intent that is broadcast when the state of {@link #isPowerSaveMode()} changes.
      * This broadcast is only sent to registered receivers.
diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index dbe3dcaa6344e..cae04adfb8b21 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -2504,4 +2504,7 @@
     <!-- True if the device requires AppWidgetService even if it does not have
          the PackageManager.FEATURE_APP_WIDGETS feature -->
     <bool name="config_enableAppWidgetService">false</bool>
+
+    <!-- True if the device supports Sustained Performance Mode-->
+    <bool name="config_sustainedPerformanceModeSupported">false</bool>
 </resources>
diff --git a/core/res/res/values/symbols.xml b/core/res/res/values/symbols.xml
index 7d19e99f65eb7..1e10f863f0fbe 100644
--- a/core/res/res/values/symbols.xml
+++ b/core/res/res/values/symbols.xml
@@ -2542,4 +2542,6 @@
 
   <java-symbol type="id" name="textSpacerNoTitle" />
   <java-symbol type="id" name="titleDividerNoCustom" />
+
+  <java-symbol type="bool" name="config_sustainedPerformanceModeSupported" />
 </resources>