1/*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#define LOG_TAG "IBatteryPropertiesRegistrar"
18//#define LOG_NDEBUG 0
19#include <utils/Log.h>
20
21#include <batteryservice/IBatteryPropertiesListener.h>
22#include <batteryservice/IBatteryPropertiesRegistrar.h>
23#include <stdint.h>
24#include <sys/types.h>
25#include <binder/Parcel.h>
26
27namespace android {
28
29class BpBatteryPropertiesRegistrar : public BpInterface<IBatteryPropertiesRegistrar> {
30public:
31    explicit BpBatteryPropertiesRegistrar(const sp<IBinder>& impl)
32        : BpInterface<IBatteryPropertiesRegistrar>(impl) {}
33
34        void registerListener(const sp<IBatteryPropertiesListener>& listener) {
35            Parcel data;
36            data.writeInterfaceToken(IBatteryPropertiesRegistrar::getInterfaceDescriptor());
37            data.writeStrongBinder(IInterface::asBinder(listener));
38            remote()->transact(REGISTER_LISTENER, data, NULL);
39        }
40
41        void unregisterListener(const sp<IBatteryPropertiesListener>& listener) {
42            Parcel data;
43            data.writeInterfaceToken(IBatteryPropertiesRegistrar::getInterfaceDescriptor());
44            data.writeStrongBinder(IInterface::asBinder(listener));
45            remote()->transact(UNREGISTER_LISTENER, data, NULL);
46        }
47
48        status_t getProperty(int id, struct BatteryProperty *val) {
49            Parcel data, reply;
50            data.writeInterfaceToken(IBatteryPropertiesRegistrar::getInterfaceDescriptor());
51            data.writeInt32(id);
52            remote()->transact(GET_PROPERTY, data, &reply);
53            int32_t ret = reply.readExceptionCode();
54            if (ret != 0) {
55                return ret;
56            }
57            ret = reply.readInt32();
58            int parcelpresent = reply.readInt32();
59            if (parcelpresent)
60                val->readFromParcel(&reply);
61            return ret;
62        }
63
64        void scheduleUpdate() {
65            Parcel data;
66            data.writeInterfaceToken(IBatteryPropertiesRegistrar::getInterfaceDescriptor());
67            remote()->transact(SCHEDULE_UPDATE, data, NULL);
68        }
69};
70
71IMPLEMENT_META_INTERFACE(BatteryPropertiesRegistrar, "android.os.IBatteryPropertiesRegistrar");
72
73status_t BnBatteryPropertiesRegistrar::onTransact(uint32_t code,
74                                                  const Parcel& data,
75                                                  Parcel* reply,
76                                                  uint32_t flags)
77{
78    switch(code) {
79        case REGISTER_LISTENER: {
80            CHECK_INTERFACE(IBatteryPropertiesRegistrar, data, reply);
81            sp<IBatteryPropertiesListener> listener =
82                interface_cast<IBatteryPropertiesListener>(data.readStrongBinder());
83            registerListener(listener);
84            return OK;
85        }
86
87        case UNREGISTER_LISTENER: {
88            CHECK_INTERFACE(IBatteryPropertiesRegistrar, data, reply);
89            sp<IBatteryPropertiesListener> listener =
90                interface_cast<IBatteryPropertiesListener>(data.readStrongBinder());
91            unregisterListener(listener);
92            return OK;
93        }
94
95        case GET_PROPERTY: {
96            CHECK_INTERFACE(IBatteryPropertiesRegistrar, data, reply);
97            int id = data.readInt32();
98            struct BatteryProperty val;
99            status_t result = getProperty(id, &val);
100            reply->writeNoException();
101            reply->writeInt32(result);
102            reply->writeInt32(1);
103            val.writeToParcel(reply);
104            return OK;
105        }
106
107        case SCHEDULE_UPDATE: {
108            CHECK_INTERFACE(IBatteryPropertiesRegistrar, data, reply);
109            scheduleUpdate();
110            return OK;
111        }
112    }
113    return BBinder::onTransact(code, data, reply, flags);
114};
115
116// ----------------------------------------------------------------------------
117
118}; // namespace android
119