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/*
**
** Copyright 2014, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#define LOG_TAG "ISoundTrigger"
#include <utils/Log.h>
#include <utils/Errors.h>
#include <binder/IMemory.h>
#include <soundtrigger/ISoundTrigger.h>
#include <soundtrigger/ISoundTriggerHwService.h>
#include <soundtrigger/ISoundTriggerClient.h>
#include <system/sound_trigger.h>
namespace android {
enum {
DETACH = IBinder::FIRST_CALL_TRANSACTION,
LOAD_SOUND_MODEL,
UNLOAD_SOUND_MODEL,
START_RECOGNITION,
STOP_RECOGNITION,
};
class BpSoundTrigger: public BpInterface<ISoundTrigger>
{
public:
BpSoundTrigger(const sp<IBinder>& impl)
: BpInterface<ISoundTrigger>(impl)
{
}
void detach()
{
ALOGV("detach");
Parcel data, reply;
data.writeInterfaceToken(ISoundTrigger::getInterfaceDescriptor());
remote()->transact(DETACH, data, &reply);
}
status_t loadSoundModel(const sp<IMemory>& modelMemory,
sound_model_handle_t *handle)
{
if (modelMemory == 0 || handle == NULL) {
return BAD_VALUE;
}
Parcel data, reply;
data.writeInterfaceToken(ISoundTrigger::getInterfaceDescriptor());
data.writeStrongBinder(IInterface::asBinder(modelMemory));
status_t status = remote()->transact(LOAD_SOUND_MODEL, data, &reply);
if (status != NO_ERROR ||
(status = (status_t)reply.readInt32()) != NO_ERROR) {
return status;
}
reply.read(handle, sizeof(sound_model_handle_t));
return status;
}
virtual status_t unloadSoundModel(sound_model_handle_t handle)
{
Parcel data, reply;
data.writeInterfaceToken(ISoundTrigger::getInterfaceDescriptor());
data.write(&handle, sizeof(sound_model_handle_t));
status_t status = remote()->transact(UNLOAD_SOUND_MODEL, data, &reply);
if (status != NO_ERROR) {
status = (status_t)reply.readInt32();
}
return status;
}
virtual status_t startRecognition(sound_model_handle_t handle,
const sp<IMemory>& dataMemory)
{
Parcel data, reply;
data.writeInterfaceToken(ISoundTrigger::getInterfaceDescriptor());
data.write(&handle, sizeof(sound_model_handle_t));
if (dataMemory == 0) {
data.writeInt32(0);
} else {
data.writeInt32(dataMemory->size());
}
data.writeStrongBinder(IInterface::asBinder(dataMemory));
status_t status = remote()->transact(START_RECOGNITION, data, &reply);
if (status != NO_ERROR) {
status = (status_t)reply.readInt32();
}
return status;
}
virtual status_t stopRecognition(sound_model_handle_t handle)
{
Parcel data, reply;
data.writeInterfaceToken(ISoundTrigger::getInterfaceDescriptor());
data.write(&handle, sizeof(sound_model_handle_t));
status_t status = remote()->transact(STOP_RECOGNITION, data, &reply);
if (status != NO_ERROR) {
status = (status_t)reply.readInt32();
}
return status;
}
};
IMPLEMENT_META_INTERFACE(SoundTrigger, "android.hardware.ISoundTrigger");
// ----------------------------------------------------------------------
status_t BnSoundTrigger::onTransact(
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
{
switch(code) {
case DETACH: {
ALOGV("DETACH");
CHECK_INTERFACE(ISoundTrigger, data, reply);
detach();
return NO_ERROR;
} break;
case LOAD_SOUND_MODEL: {
CHECK_INTERFACE(ISoundTrigger, data, reply);
sp<IMemory> modelMemory = interface_cast<IMemory>(
data.readStrongBinder());
sound_model_handle_t handle;
status_t status = loadSoundModel(modelMemory, &handle);
reply->writeInt32(status);
if (status == NO_ERROR) {
reply->write(&handle, sizeof(sound_model_handle_t));
}
return NO_ERROR;
}
case UNLOAD_SOUND_MODEL: {
CHECK_INTERFACE(ISoundTrigger, data, reply);
sound_model_handle_t handle;
data.read(&handle, sizeof(sound_model_handle_t));
status_t status = unloadSoundModel(handle);
reply->writeInt32(status);
return NO_ERROR;
}
case START_RECOGNITION: {
CHECK_INTERFACE(ISoundTrigger, data, reply);
sound_model_handle_t handle;
data.read(&handle, sizeof(sound_model_handle_t));
sp<IMemory> dataMemory;
if (data.readInt32() != 0) {
dataMemory = interface_cast<IMemory>(data.readStrongBinder());
}
status_t status = startRecognition(handle, dataMemory);
reply->writeInt32(status);
return NO_ERROR;
}
case STOP_RECOGNITION: {
CHECK_INTERFACE(ISoundTrigger, data, reply);
sound_model_handle_t handle;
data.read(&handle, sizeof(sound_model_handle_t));
status_t status = stopRecognition(handle);
reply->writeInt32(status);
return NO_ERROR;
}
default:
return BBinder::onTransact(code, data, reply, flags);
}
}
// ----------------------------------------------------------------------------
}; // namespace android
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