blob: e43acd0d5b01413634129633d6d14177a169ae29 [file] [log] [blame]
/*
**
** Copyright (C) 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 "SoundTrigger"
//#define LOG_NDEBUG 0
#include <utils/Log.h>
#include <utils/threads.h>
#include <binder/IPCThreadState.h>
#include <binder/IServiceManager.h>
#include <binder/IMemory.h>
#include <soundtrigger/SoundTrigger.h>
#include <soundtrigger/ISoundTrigger.h>
#include <soundtrigger/ISoundTriggerHwService.h>
#include <soundtrigger/ISoundTriggerClient.h>
#include <soundtrigger/SoundTriggerCallback.h>
namespace android {
namespace {
sp<ISoundTriggerHwService> gSoundTriggerHwService;
const int kSoundTriggerHwServicePollDelay = 500000; // 0.5s
const char* kSoundTriggerHwServiceName = "media.sound_trigger_hw";
Mutex gLock;
class DeathNotifier : public IBinder::DeathRecipient
{
public:
DeathNotifier() {
}
virtual void binderDied(const wp<IBinder>& who __unused) {
ALOGV("binderDied");
Mutex::Autolock _l(gLock);
gSoundTriggerHwService.clear();
ALOGW("Sound trigger service died!");
}
};
sp<DeathNotifier> gDeathNotifier;
}; // namespace anonymous
const sp<ISoundTriggerHwService>& SoundTrigger::getSoundTriggerHwService()
{
Mutex::Autolock _l(gLock);
if (gSoundTriggerHwService.get() == 0) {
sp<IServiceManager> sm = defaultServiceManager();
sp<IBinder> binder;
do {
binder = sm->getService(String16(kSoundTriggerHwServiceName));
if (binder != 0) {
break;
}
ALOGW("SoundTriggerHwService not published, waiting...");
usleep(kSoundTriggerHwServicePollDelay);
} while(true);
if (gDeathNotifier == NULL) {
gDeathNotifier = new DeathNotifier();
}
binder->linkToDeath(gDeathNotifier);
gSoundTriggerHwService = interface_cast<ISoundTriggerHwService>(binder);
}
ALOGE_IF(gSoundTriggerHwService == 0, "no SoundTriggerHwService!?");
return gSoundTriggerHwService;
}
// Static methods
status_t SoundTrigger::listModules(struct sound_trigger_module_descriptor *modules,
uint32_t *numModules)
{
ALOGV("listModules()");
const sp<ISoundTriggerHwService>& service = getSoundTriggerHwService();
if (service == 0) {
return NO_INIT;
}
return service->listModules(modules, numModules);
}
sp<SoundTrigger> SoundTrigger::attach(const sound_trigger_module_handle_t module,
const sp<SoundTriggerCallback>& callback)
{
ALOGV("attach()");
sp<SoundTrigger> soundTrigger;
const sp<ISoundTriggerHwService>& service = getSoundTriggerHwService();
if (service == 0) {
return soundTrigger;
}
soundTrigger = new SoundTrigger(module, callback);
status_t status = service->attach(module, soundTrigger, soundTrigger->mISoundTrigger);
if (status == NO_ERROR && soundTrigger->mISoundTrigger != 0) {
soundTrigger->mISoundTrigger->asBinder()->linkToDeath(soundTrigger);
} else {
ALOGW("Error %d connecting to sound trigger service", status);
soundTrigger.clear();
}
return soundTrigger;
}
// SoundTrigger
SoundTrigger::SoundTrigger(sound_trigger_module_handle_t module,
const sp<SoundTriggerCallback>& callback)
: mModule(module), mCallback(callback)
{
}
SoundTrigger::~SoundTrigger()
{
if (mISoundTrigger != 0) {
mISoundTrigger->detach();
}
}
void SoundTrigger::detach() {
ALOGV("detach()");
Mutex::Autolock _l(mLock);
mCallback.clear();
if (mISoundTrigger != 0) {
mISoundTrigger->detach();
mISoundTrigger->asBinder()->unlinkToDeath(this);
mISoundTrigger = 0;
}
}
status_t SoundTrigger::loadSoundModel(const sp<IMemory>& modelMemory,
sound_model_handle_t *handle)
{
Mutex::Autolock _l(mLock);
if (mISoundTrigger == 0) {
return NO_INIT;
}
return mISoundTrigger->loadSoundModel(modelMemory, handle);
}
status_t SoundTrigger::unloadSoundModel(sound_model_handle_t handle)
{
Mutex::Autolock _l(mLock);
if (mISoundTrigger == 0) {
return NO_INIT;
}
return mISoundTrigger->unloadSoundModel(handle);
}
status_t SoundTrigger::startRecognition(sound_model_handle_t handle,
const sp<IMemory>& dataMemory)
{
Mutex::Autolock _l(mLock);
if (mISoundTrigger == 0) {
return NO_INIT;
}
return mISoundTrigger->startRecognition(handle, dataMemory);
}
status_t SoundTrigger::stopRecognition(sound_model_handle_t handle)
{
Mutex::Autolock _l(mLock);
if (mISoundTrigger == 0) {
return NO_INIT;
}
return mISoundTrigger->stopRecognition(handle);
}
// BpSoundTriggerClient
void SoundTrigger::onRecognitionEvent(const sp<IMemory>& eventMemory)
{
Mutex::Autolock _l(mLock);
if (eventMemory == 0 || eventMemory->pointer() == NULL) {
return;
}
if (mCallback != 0) {
mCallback->onRecognitionEvent(
(struct sound_trigger_recognition_event *)eventMemory->pointer());
}
}
//IBinder::DeathRecipient
void SoundTrigger::binderDied(const wp<IBinder>& who __unused) {
Mutex::Autolock _l(mLock);
ALOGW("SoundTrigger server binder Died ");
mISoundTrigger = 0;
if (mCallback != 0) {
mCallback->onServiceDied();
}
}
status_t SoundTrigger::stringToGuid(const char *str, sound_trigger_uuid_t *guid)
{
if (str == NULL || guid == NULL) {
return BAD_VALUE;
}
int tmp[10];
if (sscanf(str, "%08x-%04x-%04x-%04x-%02x%02x%02x%02x%02x%02x",
tmp, tmp+1, tmp+2, tmp+3, tmp+4, tmp+5, tmp+6, tmp+7, tmp+8, tmp+9) < 10) {
return BAD_VALUE;
}
guid->timeLow = (uint32_t)tmp[0];
guid->timeMid = (uint16_t)tmp[1];
guid->timeHiAndVersion = (uint16_t)tmp[2];
guid->clockSeq = (uint16_t)tmp[3];
guid->node[0] = (uint8_t)tmp[4];
guid->node[1] = (uint8_t)tmp[5];
guid->node[2] = (uint8_t)tmp[6];
guid->node[3] = (uint8_t)tmp[7];
guid->node[4] = (uint8_t)tmp[8];
guid->node[5] = (uint8_t)tmp[9];
return NO_ERROR;
}
status_t SoundTrigger::guidToString(const sound_trigger_uuid_t *guid, char *str, size_t maxLen)
{
if (guid == NULL || str == NULL) {
return BAD_VALUE;
}
snprintf(str, maxLen, "%08x-%04x-%04x-%04x-%02x%02x%02x%02x%02x%02x",
guid->timeLow,
guid->timeMid,
guid->timeHiAndVersion,
guid->clockSeq,
guid->node[0],
guid->node[1],
guid->node[2],
guid->node[3],
guid->node[4],
guid->node[5]);
return NO_ERROR;
}
}; // namespace android