Adding support for adaptive battery saver.

Adaptive battery saver is a state that can be entered into dynamically
without the user turning on full EBS. With this, some features of
battery saver can be enabled to save power before the user needs to have
EBS turned on.

Bug: 119261320
Bug: 32423528
Test: atest android.provider.SettingsBackupTest
Test: atest com.android.server.power.PowerManagerServiceTest
Test: atest com.android.server.power.batterysaver.BatterySaverPolicyTest
Test: atest com.android.server.power.batterysaver.BatterySaverStateMachineTest
Test: atest com.android.server.power.batterysaver.BatterySavingStatsTest
Test: atest CtsBatterySavingTestCases
Change-Id: Ib11ea069828275d788e20cd2e858375eaaea888e

1 files changed, 45 insertions, 0 deletions

diff --git a/core/java/android/os/PowerManager.java b/core/java/android/os/PowerManager.java
index 7f4254e29aaa..0441ba27dcd4 100644
--- a/core/java/android/os/PowerManager.java
+++ b/core/java/android/os/PowerManager.java
@@ -640,6 +640,9 @@ public final class PowerManager {
      */
     public static final int LOCATION_MODE_FOREGROUND_ONLY = 3;
 
+    static final int MIN_LOCATION_MODE = LOCATION_MODE_NO_CHANGE;
+    static final int MAX_LOCATION_MODE = LOCATION_MODE_FOREGROUND_ONLY;
+
     /**
      * @hide
      */
@@ -1272,6 +1275,48 @@ public final class PowerManager {
     }
 
     /**
+     * Sets the policy for adaptive power save.
+     *
+     * @return true if there was an effectual change. If full battery saver is enabled or the
+     * adaptive policy is not enabled, then this will return false.
+     *
+     * @hide
+     */
+    @SystemApi
+    @RequiresPermission(anyOf = {
+            android.Manifest.permission.DEVICE_POWER,
+            android.Manifest.permission.POWER_SAVER
+    })
+    public boolean setAdaptivePowerSavePolicy(@NonNull BatterySaverPolicyConfig config) {
+        try {
+            return mService.setAdaptivePowerSavePolicy(config);
+        } catch (RemoteException e) {
+            throw e.rethrowFromSystemServer();
+        }
+    }
+
+    /**
+     * Enables or disables adaptive power save.
+     *
+     * @return true if there was an effectual change. If full battery saver is enabled, then this
+     * will return false.
+     *
+     * @hide
+     */
+    @SystemApi
+    @RequiresPermission(anyOf = {
+            android.Manifest.permission.DEVICE_POWER,
+            android.Manifest.permission.POWER_SAVER
+    })
+    public boolean setAdaptivePowerSaveEnabled(boolean enabled) {
+        try {
+            return mService.setAdaptivePowerSaveEnabled(enabled);
+        } catch (RemoteException e) {
+            throw e.rethrowFromSystemServer();
+        }
+    }
+
+    /**
      * Indicates automatic battery saver toggling by the system will be based on percentage.
      *
      * @see PowerManager#getPowerSaveMode()