1/*
2**
3** Copyright 2007, The Android Open Source Project
4**
5** Licensed under the Apache License, Version 2.0 (the "License");
6** you may not use this file except in compliance with the License.
7** You may obtain a copy of the License at
8**
9**     http://www.apache.org/licenses/LICENSE-2.0
10**
11** Unless required by applicable law or agreed to in writing, software
12** distributed under the License is distributed on an "AS IS" BASIS,
13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14** See the License for the specific language governing permissions and
15** limitations under the License.
16*/
17
18#define LOG_TAG "IAudioRecord"
19//#define LOG_NDEBUG 0
20#include <utils/Log.h>
21
22#include <stdint.h>
23#include <sys/types.h>
24
25#include <binder/Parcel.h>
26
27#include <media/IAudioRecord.h>
28
29namespace android {
30
31enum {
32    UNUSED_WAS_GET_CBLK = IBinder::FIRST_CALL_TRANSACTION,
33    START,
34    STOP
35};
36
37class BpAudioRecord : public BpInterface<IAudioRecord>
38{
39public:
40    explicit BpAudioRecord(const sp<IBinder>& impl)
41        : BpInterface<IAudioRecord>(impl)
42    {
43    }
44
45    virtual status_t start(int /*AudioSystem::sync_event_t*/ event, audio_session_t triggerSession)
46    {
47        Parcel data, reply;
48        data.writeInterfaceToken(IAudioRecord::getInterfaceDescriptor());
49        data.writeInt32(event);
50        data.writeInt32(triggerSession);
51        status_t status = remote()->transact(START, data, &reply);
52        if (status == NO_ERROR) {
53            status = reply.readInt32();
54        } else {
55            ALOGW("start() error: %s", strerror(-status));
56        }
57        return status;
58    }
59
60    virtual void stop()
61    {
62        Parcel data, reply;
63        data.writeInterfaceToken(IAudioRecord::getInterfaceDescriptor());
64        remote()->transact(STOP, data, &reply);
65    }
66
67};
68
69IMPLEMENT_META_INTERFACE(AudioRecord, "android.media.IAudioRecord");
70
71// ----------------------------------------------------------------------
72
73status_t BnAudioRecord::onTransact(
74    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
75{
76    switch (code) {
77        case START: {
78            CHECK_INTERFACE(IAudioRecord, data, reply);
79            int /*AudioSystem::sync_event_t*/ event = data.readInt32();
80            audio_session_t triggerSession = (audio_session_t) data.readInt32();
81            reply->writeInt32(start(event, triggerSession));
82            return NO_ERROR;
83        } break;
84        case STOP: {
85            CHECK_INTERFACE(IAudioRecord, data, reply);
86            stop();
87            return NO_ERROR;
88        } break;
89        default:
90            return BBinder::onTransact(code, data, reply, flags);
91    }
92}
93
94} // namespace android
95