1/*
2 * Copyright (C) 2010 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#include <stdint.h>
18#include <sys/types.h>
19
20#include <utils/Errors.h>
21#include <utils/RefBase.h>
22#include <utils/Vector.h>
23#include <utils/Timers.h>
24
25#include <binder/Parcel.h>
26#include <binder/IInterface.h>
27
28#include <gui/Sensor.h>
29#include <gui/ISensorServer.h>
30#include <gui/ISensorEventConnection.h>
31
32namespace android {
33// ----------------------------------------------------------------------------
34
35enum {
36    GET_SENSOR_LIST = IBinder::FIRST_CALL_TRANSACTION,
37    CREATE_SENSOR_EVENT_CONNECTION,
38    ENABLE_DATA_INJECTION,
39    GET_DYNAMIC_SENSOR_LIST,
40};
41
42class BpSensorServer : public BpInterface<ISensorServer>
43{
44public:
45    BpSensorServer(const sp<IBinder>& impl)
46        : BpInterface<ISensorServer>(impl)
47    {
48    }
49
50    virtual ~BpSensorServer();
51
52    virtual Vector<Sensor> getSensorList(const String16& opPackageName)
53    {
54        Parcel data, reply;
55        data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
56        data.writeString16(opPackageName);
57        remote()->transact(GET_SENSOR_LIST, data, &reply);
58        Sensor s;
59        Vector<Sensor> v;
60        uint32_t n = reply.readUint32();
61        v.setCapacity(n);
62        while (n--) {
63            reply.read(s);
64            v.add(s);
65        }
66        return v;
67    }
68
69    virtual Vector<Sensor> getDynamicSensorList(const String16& opPackageName)
70    {
71        Parcel data, reply;
72        data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
73        data.writeString16(opPackageName);
74        remote()->transact(GET_DYNAMIC_SENSOR_LIST, data, &reply);
75        Sensor s;
76        Vector<Sensor> v;
77        uint32_t n = reply.readUint32();
78        v.setCapacity(n);
79        while (n--) {
80            reply.read(s);
81            v.add(s);
82        }
83        return v;
84    }
85
86    virtual sp<ISensorEventConnection> createSensorEventConnection(const String8& packageName,
87             int mode, const String16& opPackageName)
88    {
89        Parcel data, reply;
90        data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
91        data.writeString8(packageName);
92        data.writeInt32(mode);
93        data.writeString16(opPackageName);
94        remote()->transact(CREATE_SENSOR_EVENT_CONNECTION, data, &reply);
95        return interface_cast<ISensorEventConnection>(reply.readStrongBinder());
96    }
97
98    virtual int isDataInjectionEnabled() {
99        Parcel data, reply;
100        data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
101        remote()->transact(ENABLE_DATA_INJECTION, data, &reply);
102        return reply.readInt32();
103    }
104};
105
106// Out-of-line virtual method definition to trigger vtable emission in this
107// translation unit (see clang warning -Wweak-vtables)
108BpSensorServer::~BpSensorServer() {}
109
110IMPLEMENT_META_INTERFACE(SensorServer, "android.gui.SensorServer");
111
112// ----------------------------------------------------------------------
113
114status_t BnSensorServer::onTransact(
115    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
116{
117    switch(code) {
118        case GET_SENSOR_LIST: {
119            CHECK_INTERFACE(ISensorServer, data, reply);
120            const String16& opPackageName = data.readString16();
121            Vector<Sensor> v(getSensorList(opPackageName));
122            size_t n = v.size();
123            reply->writeUint32(static_cast<uint32_t>(n));
124            for (size_t i = 0; i < n; i++) {
125                reply->write(v[i]);
126            }
127            return NO_ERROR;
128        }
129        case CREATE_SENSOR_EVENT_CONNECTION: {
130            CHECK_INTERFACE(ISensorServer, data, reply);
131            String8 packageName = data.readString8();
132            int32_t mode = data.readInt32();
133            const String16& opPackageName = data.readString16();
134            sp<ISensorEventConnection> connection(createSensorEventConnection(packageName, mode,
135                    opPackageName));
136            reply->writeStrongBinder(IInterface::asBinder(connection));
137            return NO_ERROR;
138        }
139        case ENABLE_DATA_INJECTION: {
140            CHECK_INTERFACE(ISensorServer, data, reply);
141            int32_t ret = isDataInjectionEnabled();
142            reply->writeInt32(static_cast<int32_t>(ret));
143            return NO_ERROR;
144        }
145        case GET_DYNAMIC_SENSOR_LIST: {
146            CHECK_INTERFACE(ISensorServer, data, reply);
147            const String16& opPackageName = data.readString16();
148            Vector<Sensor> v(getDynamicSensorList(opPackageName));
149            size_t n = v.size();
150            reply->writeUint32(static_cast<uint32_t>(n));
151            for (size_t i = 0; i < n; i++) {
152                reply->write(v[i]);
153            }
154            return NO_ERROR;
155        }
156    }
157    return BBinder::onTransact(code, data, reply, flags);
158}
159
160// ----------------------------------------------------------------------------
161}; // namespace android
162