add libbatteryservice

IBatteryPropertiesListener is used by clients such as BatteryService to
receive notifications of changed battery/power status (from healthd).

IBatteryPropertiesRegistrar manages registrations of
IBatteryPropertiesListener clients.

Add BatteryService native header with defines from BatteryManager, and
class BatteryProperties to pass battery/power status around.

Change-Id: I44e2736e503b586794097b7b9d31d07fefd9b15a
diff --git a/services/batteryservice/BatteryProperties.cpp b/services/batteryservice/BatteryProperties.cpp
new file mode 100644
index 0000000..ab636a9
--- /dev/null
+++ b/services/batteryservice/BatteryProperties.cpp
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2013 The Android Open Source 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.
+ */
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <batteryservice/BatteryService.h>
+#include <binder/Parcel.h>
+#include <utils/Errors.h>
+#include <utils/String8.h>
+#include <utils/String16.h>
+
+namespace android {
+
+/*
+ * Parcel read/write code must be kept in sync with
+ * frameworks/base/core/java/android/os/BatteryProperties.java
+ */
+
+status_t BatteryProperties::readFromParcel(Parcel* p) {
+    chargerAcOnline = p->readInt32() == 1 ? true : false;
+    chargerUsbOnline = p->readInt32() == 1 ? true : false;
+    chargerWirelessOnline = p->readInt32() == 1 ? true : false;
+    batteryStatus = p->readInt32();
+    batteryHealth = p->readInt32();
+    batteryPresent = p->readInt32() == 1 ? true : false;
+    batteryLevel = p->readInt32();
+    batteryVoltage = p->readInt32();
+    batteryTemperature = p->readInt32();
+    batteryTechnology = String8((p->readString16()).string());
+    return OK;
+}
+
+status_t BatteryProperties::writeToParcel(Parcel* p) const {
+    p->writeInt32(chargerAcOnline ? 1 : 0);
+    p->writeInt32(chargerUsbOnline ? 1 : 0);
+    p->writeInt32(chargerWirelessOnline ? 1 : 0);
+    p->writeInt32(batteryStatus);
+    p->writeInt32(batteryHealth);
+    p->writeInt32(batteryPresent ? 1 : 0);
+    p->writeInt32(batteryLevel);
+    p->writeInt32(batteryVoltage);
+    p->writeInt32(batteryTemperature);
+    p->writeString16(String16(batteryTechnology));
+    return OK;
+}
+
+}; // namespace android