add sound trigger native service
Change-Id: I0cd954c1c7d28a334e786d0004431d4f6a1227ec
diff --git a/soundtrigger/Android.mk b/soundtrigger/Android.mk
new file mode 100644
index 0000000..d91c4c2
--- /dev/null
+++ b/soundtrigger/Android.mk
@@ -0,0 +1,38 @@
+# 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.
+
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+ SoundTrigger.cpp \
+ ISoundTrigger.cpp \
+ ISoundTriggerClient.cpp \
+ ISoundTriggerHwService.cpp
+
+LOCAL_SHARED_LIBRARIES := \
+ libcutils \
+ libutils \
+ liblog \
+ libbinder \
+ libhardware
+
+#LOCAL_C_INCLUDES += \
+ system/media/camera/include \
+ system/media/private/camera/include
+
+LOCAL_MODULE:= libsoundtrigger
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/soundtrigger/ISoundTrigger.cpp b/soundtrigger/ISoundTrigger.cpp
new file mode 100644
index 0000000..42280d1
--- /dev/null
+++ b/soundtrigger/ISoundTrigger.cpp
@@ -0,0 +1,177 @@
+/*
+**
+** 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(modelMemory->asBinder());
+ 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(dataMemory->asBinder());
+ 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
diff --git a/soundtrigger/ISoundTriggerClient.cpp b/soundtrigger/ISoundTriggerClient.cpp
new file mode 100644
index 0000000..1d0c0ec
--- /dev/null
+++ b/soundtrigger/ISoundTriggerClient.cpp
@@ -0,0 +1,75 @@
+/*
+**
+** 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.
+*/
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <binder/IMemory.h>
+#include <binder/Parcel.h>
+#include <binder/IPCThreadState.h>
+#include <binder/IServiceManager.h>
+#include <soundtrigger/ISoundTriggerClient.h>
+
+namespace android {
+
+enum {
+ ON_RECOGNITION_EVENT = IBinder::FIRST_CALL_TRANSACTION,
+};
+
+class BpSoundTriggerClient: public BpInterface<ISoundTriggerClient>
+{
+
+public:
+ BpSoundTriggerClient(const sp<IBinder>& impl)
+ : BpInterface<ISoundTriggerClient>(impl)
+ {
+ }
+
+ virtual void onRecognitionEvent(const sp<IMemory>& eventMemory)
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISoundTriggerClient::getInterfaceDescriptor());
+ data.writeStrongBinder(eventMemory->asBinder());
+ remote()->transact(ON_RECOGNITION_EVENT,
+ data,
+ &reply);
+ }
+};
+
+IMPLEMENT_META_INTERFACE(SoundTriggerClient,
+ "android.hardware.ISoundTriggerClient");
+
+// ----------------------------------------------------------------------
+
+status_t BnSoundTriggerClient::onTransact(
+ uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+ switch(code) {
+ case ON_RECOGNITION_EVENT: {
+ CHECK_INTERFACE(ISoundTriggerClient, data, reply);
+ sp<IMemory> eventMemory = interface_cast<IMemory>(
+ data.readStrongBinder());
+ onRecognitionEvent(eventMemory);
+ return NO_ERROR;
+ } break;
+ default:
+ return BBinder::onTransact(code, data, reply, flags);
+ }
+}
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
diff --git a/soundtrigger/ISoundTriggerHwService.cpp b/soundtrigger/ISoundTriggerHwService.cpp
new file mode 100644
index 0000000..c9a0c24
--- /dev/null
+++ b/soundtrigger/ISoundTriggerHwService.cpp
@@ -0,0 +1,150 @@
+/*
+**
+** 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 "BpSoundTriggerHwService"
+//#define LOG_NDEBUG 0
+
+#include <utils/Log.h>
+#include <utils/Errors.h>
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <binder/IMemory.h>
+#include <binder/Parcel.h>
+#include <binder/IPCThreadState.h>
+#include <binder/IServiceManager.h>
+
+#include <soundtrigger/ISoundTriggerHwService.h>
+#include <soundtrigger/ISoundTrigger.h>
+#include <soundtrigger/ISoundTriggerClient.h>
+
+namespace android {
+
+enum {
+ LIST_MODULES = IBinder::FIRST_CALL_TRANSACTION,
+ ATTACH,
+};
+
+class BpSoundTriggerHwService: public BpInterface<ISoundTriggerHwService>
+{
+public:
+ BpSoundTriggerHwService(const sp<IBinder>& impl)
+ : BpInterface<ISoundTriggerHwService>(impl)
+ {
+ }
+
+ virtual status_t listModules(struct sound_trigger_module_descriptor *modules,
+ uint32_t *numModules)
+ {
+ if (numModules == NULL || (*numModules != 0 && modules == NULL)) {
+ return BAD_VALUE;
+ }
+ Parcel data, reply;
+ data.writeInterfaceToken(ISoundTriggerHwService::getInterfaceDescriptor());
+ unsigned int numModulesReq = (modules == NULL) ? 0 : *numModules;
+ data.writeInt32(numModulesReq);
+ status_t status = remote()->transact(LIST_MODULES, data, &reply);
+ if (status == NO_ERROR) {
+ status = (status_t)reply.readInt32();
+ *numModules = (unsigned int)reply.readInt32();
+ }
+ ALOGV("listModules() status %d got *numModules %d", status, *numModules);
+ if (status == NO_ERROR) {
+ if (numModulesReq > *numModules) {
+ numModulesReq = *numModules;
+ }
+ if (numModulesReq > 0) {
+ reply.read(modules, numModulesReq * sizeof(struct sound_trigger_module_descriptor));
+ }
+ }
+ return status;
+ }
+
+ virtual status_t attach(const sound_trigger_module_handle_t handle,
+ const sp<ISoundTriggerClient>& client,
+ sp<ISoundTrigger>& module)
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISoundTriggerHwService::getInterfaceDescriptor());
+ data.write(&handle, sizeof(sound_trigger_module_handle_t));
+ data.writeStrongBinder(client->asBinder());
+ remote()->transact(ATTACH, data, &reply);
+ status_t status = reply.readInt32();
+ if (reply.readInt32() != 0) {
+ module = interface_cast<ISoundTrigger>(reply.readStrongBinder());
+ }
+ return status;
+ }
+
+};
+
+IMPLEMENT_META_INTERFACE(SoundTriggerHwService, "android.hardware.ISoundTriggerHwService");
+
+// ----------------------------------------------------------------------
+
+status_t BnSoundTriggerHwService::onTransact(
+ uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+ switch(code) {
+ case LIST_MODULES: {
+ CHECK_INTERFACE(ISoundTriggerHwService, data, reply);
+ unsigned int numModulesReq = data.readInt32();
+ unsigned int numModules = numModulesReq;
+ struct sound_trigger_module_descriptor *modules =
+ (struct sound_trigger_module_descriptor *)calloc(numModulesReq,
+ sizeof(struct sound_trigger_module_descriptor));
+ status_t status = listModules(modules, &numModules);
+ reply->writeInt32(status);
+ reply->writeInt32(numModules);
+ ALOGV("LIST_MODULES status %d got numModules %d", status, numModules);
+
+ if (status == NO_ERROR) {
+ if (numModulesReq > numModules) {
+ numModulesReq = numModules;
+ }
+ reply->write(modules,
+ numModulesReq * sizeof(struct sound_trigger_module_descriptor));
+ }
+ free(modules);
+ return NO_ERROR;
+ }
+
+ case ATTACH: {
+ CHECK_INTERFACE(ISoundTriggerHwService, data, reply);
+ sound_trigger_module_handle_t handle;
+ data.read(&handle, sizeof(sound_trigger_module_handle_t));
+ sp<ISoundTriggerClient> client =
+ interface_cast<ISoundTriggerClient>(data.readStrongBinder());
+ sp<ISoundTrigger> module;
+ status_t status = attach(handle, client, module);
+ reply->writeInt32(status);
+ if (module != 0) {
+ reply->writeInt32(1);
+ reply->writeStrongBinder(module->asBinder());
+ } else {
+ reply->writeInt32(0);
+ }
+ return NO_ERROR;
+ } break;
+ default:
+ return BBinder::onTransact(code, data, reply, flags);
+ }
+}
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
diff --git a/soundtrigger/SoundTrigger.cpp b/soundtrigger/SoundTrigger.cpp
new file mode 100644
index 0000000..e43acd0
--- /dev/null
+++ b/soundtrigger/SoundTrigger.cpp
@@ -0,0 +1,253 @@
+/*
+**
+** 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