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
28 namespace android {
29
30 enum {
31 PORT_LIST_UPDATE = IBinder::FIRST_CALL_TRANSACTION,
32 PATCH_LIST_UPDATE,
33 MIX_STATE_UPDATE,
34 RECORDING_CONFIGURATION_UPDATE
35 };
36
37 // ----------------------------------------------------------------------
readAudioConfigBaseFromParcel(const Parcel & data,audio_config_base_t * config)38 inline 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
writeAudioConfigBaseToParcel(Parcel & data,const audio_config_base_t * config)44 inline 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
51 // ----------------------------------------------------------------------
52 class BpAudioPolicyServiceClient : public BpInterface<IAudioPolicyServiceClient>
53 {
54 public:
BpAudioPolicyServiceClient(const sp<IBinder> & impl)55 explicit BpAudioPolicyServiceClient(const sp<IBinder>& impl)
56 : BpInterface<IAudioPolicyServiceClient>(impl)
57 {
58 }
59
onAudioPortListUpdate()60 void onAudioPortListUpdate()
61 {
62 Parcel data, reply;
63 data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
64 remote()->transact(PORT_LIST_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
65 }
66
onAudioPatchListUpdate()67 void onAudioPatchListUpdate()
68 {
69 Parcel data, reply;
70 data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
71 remote()->transact(PATCH_LIST_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
72 }
73
onDynamicPolicyMixStateUpdate(String8 regId,int32_t state)74 void onDynamicPolicyMixStateUpdate(String8 regId, int32_t state)
75 {
76 Parcel data, reply;
77 data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
78 data.writeString8(regId);
79 data.writeInt32(state);
80 remote()->transact(MIX_STATE_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
81 }
82
onRecordingConfigurationUpdate(int event,audio_session_t session,audio_source_t source,const audio_config_base_t * clientConfig,const audio_config_base_t * deviceConfig,audio_patch_handle_t patchHandle)83 void onRecordingConfigurationUpdate(int event, audio_session_t session,
84 audio_source_t source, const audio_config_base_t *clientConfig,
85 const audio_config_base_t *deviceConfig, audio_patch_handle_t patchHandle) {
86 Parcel data, reply;
87 data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
88 data.writeInt32(event);
89 data.writeInt32(session);
90 data.writeInt32(source);
91 writeAudioConfigBaseToParcel(data, clientConfig);
92 writeAudioConfigBaseToParcel(data, deviceConfig);
93 data.writeInt32(patchHandle);
94 remote()->transact(RECORDING_CONFIGURATION_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
95 }
96 };
97
98 IMPLEMENT_META_INTERFACE(AudioPolicyServiceClient, "android.media.IAudioPolicyServiceClient");
99
100 // ----------------------------------------------------------------------
101
onTransact(uint32_t code,const Parcel & data,Parcel * reply,uint32_t flags)102 status_t BnAudioPolicyServiceClient::onTransact(
103 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
104 {
105 switch (code) {
106 case PORT_LIST_UPDATE: {
107 CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
108 onAudioPortListUpdate();
109 return NO_ERROR;
110 } break;
111 case PATCH_LIST_UPDATE: {
112 CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
113 onAudioPatchListUpdate();
114 return NO_ERROR;
115 } break;
116 case MIX_STATE_UPDATE: {
117 CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
118 String8 regId = data.readString8();
119 int32_t state = data.readInt32();
120 onDynamicPolicyMixStateUpdate(regId, state);
121 return NO_ERROR;
122 } break;
123 case RECORDING_CONFIGURATION_UPDATE: {
124 CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
125 int event = (int) data.readInt32();
126 audio_session_t session = (audio_session_t) data.readInt32();
127 audio_source_t source = (audio_source_t) data.readInt32();
128 audio_config_base_t clientConfig;
129 audio_config_base_t deviceConfig;
130 readAudioConfigBaseFromParcel(data, &clientConfig);
131 readAudioConfigBaseFromParcel(data, &deviceConfig);
132 audio_patch_handle_t patchHandle = (audio_patch_handle_t) data.readInt32();
133 onRecordingConfigurationUpdate(event, session, source, &clientConfig, &deviceConfig,
134 patchHandle);
135 return NO_ERROR;
136 } break;
137 default:
138 return BBinder::onTransact(code, data, reply, flags);
139 }
140 }
141
142 // ----------------------------------------------------------------------------
143
144 } // namespace android
145