1 /*
2 **
3 ** Copyright 2014, 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 "ISoundTrigger"
19 #include <utils/Log.h>
20 #include <utils/Errors.h>
21 #include <binder/IMemory.h>
22 #include <soundtrigger/ISoundTrigger.h>
23 #include <soundtrigger/ISoundTriggerHwService.h>
24 #include <soundtrigger/ISoundTriggerClient.h>
25 #include <system/sound_trigger.h>
26
27 namespace android {
28
29 enum {
30 DETACH = IBinder::FIRST_CALL_TRANSACTION,
31 LOAD_SOUND_MODEL,
32 UNLOAD_SOUND_MODEL,
33 START_RECOGNITION,
34 STOP_RECOGNITION,
35 };
36
37 class BpSoundTrigger: public BpInterface<ISoundTrigger>
38 {
39 public:
BpSoundTrigger(const sp<IBinder> & impl)40 BpSoundTrigger(const sp<IBinder>& impl)
41 : BpInterface<ISoundTrigger>(impl)
42 {
43 }
44
detach()45 void detach()
46 {
47 ALOGV("detach");
48 Parcel data, reply;
49 data.writeInterfaceToken(ISoundTrigger::getInterfaceDescriptor());
50 remote()->transact(DETACH, data, &reply);
51 }
52
loadSoundModel(const sp<IMemory> & modelMemory,sound_model_handle_t * handle)53 status_t loadSoundModel(const sp<IMemory>& modelMemory,
54 sound_model_handle_t *handle)
55 {
56 if (modelMemory == 0 || handle == NULL) {
57 return BAD_VALUE;
58 }
59 Parcel data, reply;
60 data.writeInterfaceToken(ISoundTrigger::getInterfaceDescriptor());
61 data.writeStrongBinder(IInterface::asBinder(modelMemory));
62 status_t status = remote()->transact(LOAD_SOUND_MODEL, data, &reply);
63 if (status != NO_ERROR ||
64 (status = (status_t)reply.readInt32()) != NO_ERROR) {
65 return status;
66 }
67 reply.read(handle, sizeof(sound_model_handle_t));
68 return status;
69 }
70
unloadSoundModel(sound_model_handle_t handle)71 virtual status_t unloadSoundModel(sound_model_handle_t handle)
72 {
73 Parcel data, reply;
74 data.writeInterfaceToken(ISoundTrigger::getInterfaceDescriptor());
75 data.write(&handle, sizeof(sound_model_handle_t));
76 status_t status = remote()->transact(UNLOAD_SOUND_MODEL, data, &reply);
77 if (status != NO_ERROR) {
78 status = (status_t)reply.readInt32();
79 }
80 return status;
81 }
82
startRecognition(sound_model_handle_t handle,const sp<IMemory> & dataMemory)83 virtual status_t startRecognition(sound_model_handle_t handle,
84 const sp<IMemory>& dataMemory)
85 {
86 Parcel data, reply;
87 data.writeInterfaceToken(ISoundTrigger::getInterfaceDescriptor());
88 data.write(&handle, sizeof(sound_model_handle_t));
89 if (dataMemory == 0) {
90 data.writeInt32(0);
91 } else {
92 data.writeInt32(dataMemory->size());
93 }
94 data.writeStrongBinder(IInterface::asBinder(dataMemory));
95 status_t status = remote()->transact(START_RECOGNITION, data, &reply);
96 if (status != NO_ERROR) {
97 status = (status_t)reply.readInt32();
98 }
99 return status;
100 }
101
stopRecognition(sound_model_handle_t handle)102 virtual status_t stopRecognition(sound_model_handle_t handle)
103 {
104 Parcel data, reply;
105 data.writeInterfaceToken(ISoundTrigger::getInterfaceDescriptor());
106 data.write(&handle, sizeof(sound_model_handle_t));
107 status_t status = remote()->transact(STOP_RECOGNITION, data, &reply);
108 if (status != NO_ERROR) {
109 status = (status_t)reply.readInt32();
110 }
111 return status;
112 }
113
114 };
115
116 IMPLEMENT_META_INTERFACE(SoundTrigger, "android.hardware.ISoundTrigger");
117
118 // ----------------------------------------------------------------------
119
onTransact(uint32_t code,const Parcel & data,Parcel * reply,uint32_t flags)120 status_t BnSoundTrigger::onTransact(
121 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
122 {
123 switch(code) {
124 case DETACH: {
125 ALOGV("DETACH");
126 CHECK_INTERFACE(ISoundTrigger, data, reply);
127 detach();
128 return NO_ERROR;
129 } break;
130 case LOAD_SOUND_MODEL: {
131 CHECK_INTERFACE(ISoundTrigger, data, reply);
132 sp<IMemory> modelMemory = interface_cast<IMemory>(
133 data.readStrongBinder());
134 sound_model_handle_t handle;
135 status_t status = loadSoundModel(modelMemory, &handle);
136 reply->writeInt32(status);
137 if (status == NO_ERROR) {
138 reply->write(&handle, sizeof(sound_model_handle_t));
139 }
140 return NO_ERROR;
141 }
142 case UNLOAD_SOUND_MODEL: {
143 CHECK_INTERFACE(ISoundTrigger, data, reply);
144 sound_model_handle_t handle;
145 data.read(&handle, sizeof(sound_model_handle_t));
146 status_t status = unloadSoundModel(handle);
147 reply->writeInt32(status);
148 return NO_ERROR;
149 }
150 case START_RECOGNITION: {
151 CHECK_INTERFACE(ISoundTrigger, data, reply);
152 sound_model_handle_t handle;
153 data.read(&handle, sizeof(sound_model_handle_t));
154 sp<IMemory> dataMemory;
155 if (data.readInt32() != 0) {
156 dataMemory = interface_cast<IMemory>(data.readStrongBinder());
157 }
158 status_t status = startRecognition(handle, dataMemory);
159 reply->writeInt32(status);
160 return NO_ERROR;
161 }
162 case STOP_RECOGNITION: {
163 CHECK_INTERFACE(ISoundTrigger, data, reply);
164 sound_model_handle_t handle;
165 data.read(&handle, sizeof(sound_model_handle_t));
166 status_t status = stopRecognition(handle);
167 reply->writeInt32(status);
168 return NO_ERROR;
169 }
170 default:
171 return BBinder::onTransact(code, data, reply, flags);
172 }
173 }
174
175 // ----------------------------------------------------------------------------
176
177 }; // namespace android
178