1/*
2 * Copyright (C) 2009 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 "IAudioPolicyServiceClient"
18#include <utils/Log.h>
19
20#include <stdint.h>
21#include <sys/types.h>
22
23#include <binder/Parcel.h>
24
25#include <media/IAudioPolicyServiceClient.h>
26#include <media/AudioSystem.h>
27
28namespace android {
29
30enum {
31    PORT_LIST_UPDATE = IBinder::FIRST_CALL_TRANSACTION,
32    PATCH_LIST_UPDATE,
33    MIX_STATE_UPDATE,
34    RECORDING_CONFIGURATION_UPDATE
35};
36
37// ----------------------------------------------------------------------
38inline void readAudioConfigBaseFromParcel(const Parcel& data, audio_config_base_t *config) {
39    config->sample_rate = data.readUint32();
40    config->channel_mask = (audio_channel_mask_t) data.readInt32();
41    config->format = (audio_format_t) data.readInt32();
42}
43
44inline void writeAudioConfigBaseToParcel(Parcel& data, const audio_config_base_t *config)
45{
46    data.writeUint32(config->sample_rate);
47    data.writeInt32((int32_t) config->channel_mask);
48    data.writeInt32((int32_t) config->format);
49}
50
51inline void readRecordClientInfoFromParcel(const Parcel& data, record_client_info_t *clientInfo) {
52    clientInfo->uid = (uid_t) data.readUint32();
53    clientInfo->session = (audio_session_t) data.readInt32();
54    clientInfo->source = (audio_source_t) data.readInt32();
55}
56
57inline void writeRecordClientInfoFromParcel(Parcel& data, const record_client_info_t *clientInfo) {
58    data.writeUint32((uint32_t) clientInfo->uid);
59    data.writeInt32((int32_t) clientInfo->session);
60    data.writeInt32((int32_t) clientInfo->source);
61}
62
63// ----------------------------------------------------------------------
64class BpAudioPolicyServiceClient : public BpInterface<IAudioPolicyServiceClient>
65{
66public:
67    explicit BpAudioPolicyServiceClient(const sp<IBinder>& impl)
68        : BpInterface<IAudioPolicyServiceClient>(impl)
69    {
70    }
71
72    void onAudioPortListUpdate()
73    {
74        Parcel data, reply;
75        data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
76        remote()->transact(PORT_LIST_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
77    }
78
79    void onAudioPatchListUpdate()
80    {
81        Parcel data, reply;
82        data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
83        remote()->transact(PATCH_LIST_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
84    }
85
86    void onDynamicPolicyMixStateUpdate(String8 regId, int32_t state)
87    {
88        Parcel data, reply;
89        data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
90        data.writeString8(regId);
91        data.writeInt32(state);
92        remote()->transact(MIX_STATE_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
93    }
94
95    void onRecordingConfigurationUpdate(int event, const record_client_info_t *clientInfo,
96            const audio_config_base_t *clientConfig,
97            const audio_config_base_t *deviceConfig, audio_patch_handle_t patchHandle) {
98        Parcel data, reply;
99        data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
100        data.writeInt32(event);
101        writeRecordClientInfoFromParcel(data, clientInfo);
102        writeAudioConfigBaseToParcel(data, clientConfig);
103        writeAudioConfigBaseToParcel(data, deviceConfig);
104        data.writeInt32(patchHandle);
105        remote()->transact(RECORDING_CONFIGURATION_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
106    }
107};
108
109IMPLEMENT_META_INTERFACE(AudioPolicyServiceClient, "android.media.IAudioPolicyServiceClient");
110
111// ----------------------------------------------------------------------
112
113status_t BnAudioPolicyServiceClient::onTransact(
114    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
115{
116    switch (code) {
117    case PORT_LIST_UPDATE: {
118            CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
119            onAudioPortListUpdate();
120            return NO_ERROR;
121        } break;
122    case PATCH_LIST_UPDATE: {
123            CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
124            onAudioPatchListUpdate();
125            return NO_ERROR;
126        } break;
127    case MIX_STATE_UPDATE: {
128            CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
129            String8 regId = data.readString8();
130            int32_t state = data.readInt32();
131            onDynamicPolicyMixStateUpdate(regId, state);
132            return NO_ERROR;
133        } break;
134    case RECORDING_CONFIGURATION_UPDATE: {
135            CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
136            int event = (int) data.readInt32();
137            record_client_info_t clientInfo;
138            audio_config_base_t clientConfig;
139            audio_config_base_t deviceConfig;
140            readRecordClientInfoFromParcel(data, &clientInfo);
141            readAudioConfigBaseFromParcel(data, &clientConfig);
142            readAudioConfigBaseFromParcel(data, &deviceConfig);
143            audio_patch_handle_t patchHandle = (audio_patch_handle_t) data.readInt32();
144            onRecordingConfigurationUpdate(event, &clientInfo, &clientConfig, &deviceConfig,
145                    patchHandle);
146            return NO_ERROR;
147        } break;
148    default:
149        return BBinder::onTransact(code, data, reply, flags);
150    }
151}
152
153// ----------------------------------------------------------------------------
154
155} // namespace android
156