CMSdk : Add ThermalMonitor

Change-Id: Iafc87cf4c79feac5e2c66bb3d1945da6d0b742da

src/java/cyanogenmod/hardware/CMHardwareManager.java

@@ -119,6 +119,11 @@ public final class CMHardwareManager {
      */
     public static final int FEATURE_PERSISTENT_STORAGE = 0x4000;
 
+    /**
+     * Thermal change monitor
+     */
+    public static final int FEATURE_THERMAL_MONITOR = 0x8000;
+
     private static final List<Integer> BOOLEAN_FEATURES = Arrays.asList(
         FEATURE_ADAPTIVE_BACKLIGHT,
         FEATURE_COLOR_ENHANCEMENT,
@@ -127,7 +132,8 @@ public final class CMHardwareManager {
         FEATURE_SUNLIGHT_ENHANCEMENT,
         FEATURE_TAP_TO_WAKE,
         FEATURE_TOUCH_HOVERING,
-        FEATURE_AUTO_CONTRAST
+        FEATURE_AUTO_CONTRAST,
+        FEATURE_THERMAL_MONITOR
     );
 
     private static CMHardwareManager sCMHardwareManagerInstance;
@@ -769,4 +775,45 @@ public final class CMHardwareManager {
         }
         return true;
     }
+
+    /**
+     * @return current thermal {@link cyanogenmod.hardware.ThermalListenerCallback.State}
+     */
+    public int getThermalState() {
+        try {
+            if (checkService()) {
+                return sService.getThermalState();
+            }
+        } catch (RemoteException e) {
+        }
+        return ThermalListenerCallback.State.STATE_UNKNOWN;
+    }
+
+   /**
+    * Register a callback to be notified of thermal state changes
+    * @return boolean indicating whether register succeeded or failed
+    */
+    public boolean registerThermalListener(ThermalListenerCallback thermalCallback) {
+        try {
+            if (checkService()) {
+                return sService.registerThermalListener(thermalCallback);
+            }
+        } catch (RemoteException e) {
+        }
+        return false;
+    }
+
+   /**
+    * Unregister a callback previously registered to be notified of thermal state changes
+    * @return boolean indicating whether un-registering succeeded or failed
+    */
+    public boolean unRegisterThermalListener(ThermalListenerCallback thermalCallback) {
+        try {
+            if (checkService()) {
+                return sService.unRegisterThermalListener(thermalCallback);
+            }
+        } catch (RemoteException e) {
+        }
+        return false;
+    }
 }

src/java/cyanogenmod/hardware/ICMHardwareService.aidl

@@ -17,6 +17,7 @@
 package cyanogenmod.hardware;
 
 import cyanogenmod.hardware.DisplayMode;
+import cyanogenmod.hardware.IThermalListenerCallback;
 
 /** @hide */
 interface ICMHardwareService {
@@ -50,4 +51,8 @@ interface ICMHardwareService {
 
     boolean writePersistentBytes(String key, in byte[] bytes);
     byte[] readPersistentBytes(String key);
+
+    int getThermalState();
+    boolean registerThermalListener(IThermalListenerCallback callback);
+    boolean unRegisterThermalListener(IThermalListenerCallback callback);
 }

src/java/cyanogenmod/hardware/IThermalListenerCallback.aidl

@@ -0,0 +1,21 @@
+/**
+ * Copyright (C) 2015 The CyanogenMod Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package cyanogenmod.hardware;
+
+interface IThermalListenerCallback {
+    void onThermalChanged(int state);
+}

src/java/cyanogenmod/hardware/ThermalListenerCallback.java

@@ -0,0 +1,44 @@
+/**
+ * Copyright (C) 2015 The CyanogenMod Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package cyanogenmod.hardware;
+
+/**
+ * Callback class to register for thermal state changes
+ */
+public abstract class ThermalListenerCallback extends IThermalListenerCallback.Stub {
+    public static final class State {
+        public static final int STATE_UNKNOWN = -1;
+        public static final int STATE_COOL = 0;
+        public static final int STATE_NORMAL = 1;
+        public static final int STATE_HIGH = 2;
+        public static final int STATE_EXTREME = 3;
+        public static final String toString(int state) {
+            switch (state) {
+                case STATE_COOL:
+                    return "STATE_COOL";
+                case STATE_NORMAL:
+                    return "STATE_NORMAL";
+                case STATE_HIGH:
+                    return "STATE_HIGH";
+                case STATE_EXTREME:
+                    return "STATE_EXTREME";
+                default:
+                    return "STATE_UNKNOWN";
+            }
+        }
+    }
+}