tv/cec/1.1/default/HdmiCecMock.cpp - LeafOS-Project/android_hardware_interfaces - Gitiles

 /*
  * Copyright (C) 2021 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 "android.hardware.tv.cec@1.1"
 #include <android-base/logging.h>
 #include <utils/Log.h>

 #include <hardware/hardware.h>
 #include <hardware/hdmi_cec.h>
 #include "HdmiCecMock.h"

 namespace android {
 namespace hardware {
 namespace tv {
 namespace cec {
 namespace V1_1 {
 namespace implementation {

 class WrappedCallback : public ::android::hardware::tv::cec::V1_1::IHdmiCecCallback {
   public:
     WrappedCallback(sp<::android::hardware::tv::cec::V1_0::IHdmiCecCallback> callback) {
         mCallback = callback;
     }

     Return<void> onCecMessage(const ::android::hardware::tv::cec::V1_0::CecMessage& message) {
         mCallback->onCecMessage(message);
         return Void();
     }
     Return<void> onCecMessage_1_1(const ::android::hardware::tv::cec::V1_1::CecMessage& message) {
         ::android::hardware::tv::cec::V1_0::CecMessage cecMessage;
         cecMessage.initiator =
                 ::android::hardware::tv::cec::V1_0::CecLogicalAddress(message.initiator);
         cecMessage.destination =
                 ::android::hardware::tv::cec::V1_0::CecLogicalAddress(message.destination);
         cecMessage.body = message.body;
         mCallback->onCecMessage(cecMessage);
         return Void();
     }
     Return<void> onHotplugEvent(const ::android::hardware::tv::cec::V1_0::HotplugEvent& event) {
         mCallback->onHotplugEvent(event);
         return Void();
     }

   private:
     sp<::android::hardware::tv::cec::V1_0::IHdmiCecCallback> mCallback;
 };

 /*
  * (*set_option)() passes flags controlling the way HDMI-CEC service works down
  * to HAL implementation. Those flags will be used in case the feature needs
  * update in HAL itself, firmware or microcontroller.
  */
 void HdmiCecMock::cec_set_option(int flag, int value) {
     // maintain options and set them accordingly
     switch (flag) {
         case HDMI_OPTION_WAKEUP:
             mOptionWakeUp = value;
             break;
         case HDMI_OPTION_ENABLE_CEC:
             mOptionEnableCec = value;
             break;
         case HDMI_OPTION_SYSTEM_CEC_CONTROL:
             mOptionSystemCecControl = value;
             break;
         case HDMI_OPTION_SET_LANG:
             mOptionLanguage = value;
             break;
     }
 }

 // Methods from ::android::hardware::tv::cec::V1_0::IHdmiCec follow.
 Return<Result> HdmiCecMock::addLogicalAddress(CecLogicalAddress addr) {
     return addLogicalAddress_1_1(::android::hardware::tv::cec::V1_1::CecLogicalAddress(addr));
 }

 Return<void> HdmiCecMock::clearLogicalAddress() {
     // remove logical address from the list
     mLogicalAddresses = {};
     return Void();
 }

 Return<void> HdmiCecMock::getPhysicalAddress(getPhysicalAddress_cb _hidl_cb) {
     // maintain a physical address and return it
     // default 0xFFFF, update on hotplug event
     _hidl_cb(Result::SUCCESS, mPhysicalAddress);
     return Void();
 }

 Return<SendMessageResult> HdmiCecMock::sendMessage(const CecMessage& message) {
     ::android::hardware::tv::cec::V1_1::CecMessage cecMessage;
     cecMessage.initiator = ::android::hardware::tv::cec::V1_1::CecLogicalAddress(message.initiator);
     cecMessage.destination =
             ::android::hardware::tv::cec::V1_1::CecLogicalAddress(message.destination);
     cecMessage.body = message.body;
     return sendMessage_1_1(cecMessage);
 }

 Return<void> HdmiCecMock::setCallback(const sp<IHdmiCecCallback>& callback) {
     return setCallback_1_1(new WrappedCallback(callback));
 }

 Return<int32_t> HdmiCecMock::getCecVersion() {
     // maintain a cec version and return it
     return mCecVersion;
 }

 Return<uint32_t> HdmiCecMock::getVendorId() {
     return mCecVendorId;
 }

 Return<void> HdmiCecMock::getPortInfo(getPortInfo_cb _hidl_cb) {
     // TODO ready port info from device specific config
     _hidl_cb(mPortInfo);
     return Void();
 }

 Return<void> HdmiCecMock::setOption(OptionKey key, bool value) {
     cec_set_option(static_cast<int>(key), value ? 1 : 0);
     return Void();
 }

 Return<void> HdmiCecMock::setLanguage(const hidl_string& language) {
     if (language.size() != 3) {
         LOG(ERROR) << "Wrong language code: expected 3 letters, but it was " << language.size()
                    << ".";
         return Void();
     }
     // TODO validate if language is a valid language code
     const char* languageStr = language.c_str();
     int convertedLanguage = ((languageStr[0] & 0xFF) << 16) | ((languageStr[1] & 0xFF) << 8) |
                             (languageStr[2] & 0xFF);
     cec_set_option(HDMI_OPTION_SET_LANG, convertedLanguage);
     return Void();
 }

 Return<void> HdmiCecMock::enableAudioReturnChannel(int32_t portId __unused, bool enable __unused) {
     // Maintain ARC status
     return Void();
 }

 Return<bool> HdmiCecMock::isConnected(int32_t portId) {
     // maintain port connection status and update on hotplug event
     if (portId < mTotalPorts && portId >= 0) {
         return mPortConnectionStatus[portId];
     }
     return false;
 }

 // Methods from ::android::hardware::tv::cec::V1_1::IHdmiCec follow.
 Return<Result> HdmiCecMock::addLogicalAddress_1_1(
         ::android::hardware::tv::cec::V1_1::CecLogicalAddress addr) {
     // have a list to maintain logical addresses
     int size = mLogicalAddresses.size();
     mLogicalAddresses.resize(size + 1);
     mLogicalAddresses[size + 1] = addr;
     return Result::SUCCESS;
 }

 Return<SendMessageResult> HdmiCecMock::sendMessage_1_1(
         const ::android::hardware::tv::cec::V1_1::CecMessage& message) {
     if (message.body.size() == 0) {
         return SendMessageResult::NACK;
     }
     sendMessageToFifo(message);
     return SendMessageResult::SUCCESS;
 }

 Return<void> HdmiCecMock::setCallback_1_1(
         const sp<::android::hardware::tv::cec::V1_1::IHdmiCecCallback>& callback) {
     if (mCallback != nullptr) {
         mCallback = nullptr;
     }

     if (callback != nullptr) {
         mCallback = callback;
         mCallback->linkToDeath(this, 0 /*cookie*/);

         mInputFile = open(CEC_MSG_IN_FIFO, O_RDWR);
         mOutputFile = open(CEC_MSG_OUT_FIFO, O_RDWR);
         pthread_create(&mThreadId, NULL, __threadLoop, this);
         pthread_setname_np(mThreadId, "hdmi_cec_loop");
     }
     return Void();
 }

 void* HdmiCecMock::__threadLoop(void* user) {
     HdmiCecMock* const self = static_cast<HdmiCecMock*>(user);
     self->threadLoop();
     return 0;
 }

 int HdmiCecMock::readMessageFromFifo(unsigned char* buf, int msgCount) {
     if (msgCount <= 0 || !buf) {
         return 0;
     }

     int ret = -1;
     /* maybe blocked at driver */
     ret = read(mInputFile, buf, msgCount);
     if (ret < 0) {
         ALOGE("[halimp] read :%s failed, ret:%d\n", CEC_MSG_IN_FIFO, ret);
         return -1;
     }

     return ret;
 }

 int HdmiCecMock::sendMessageToFifo(const ::android::hardware::tv::cec::V1_1::CecMessage& message) {
     unsigned char msgBuf[CEC_MESSAGE_BODY_MAX_LENGTH];
     int ret = -1;

     memset(msgBuf, 0, sizeof(msgBuf));
     msgBuf[0] = ((static_cast<uint8_t>(message.initiator) & 0xf) << 4) |
                 (static_cast<uint8_t>(message.destination) & 0xf);

     size_t length = std::min(static_cast<size_t>(message.body.size()),
                              static_cast<size_t>(MaxLength::MESSAGE_BODY));
     for (size_t i = 0; i < length; ++i) {
         msgBuf[i + 1] = static_cast<unsigned char>(message.body[i]);
     }

     // open the output pipe for writing outgoing cec message
     mOutputFile = open(CEC_MSG_OUT_FIFO, O_WRONLY);
     if (mOutputFile < 0) {
         ALOGD("[halimp] file open failed for writing");
         return -1;
     }

     // write message into the output pipe
     ret = write(mOutputFile, msgBuf, length + 1);
     close(mOutputFile);
     if (ret < 0) {
         ALOGE("[halimp] write :%s failed, ret:%d\n", CEC_MSG_OUT_FIFO, ret);
         return -1;
     }
     return ret;
 }

 void HdmiCecMock::printCecMsgBuf(const char* msg_buf, int len) {
     char buf[64] = {};
     int i, size = 0;
     memset(buf, 0, sizeof(buf));
     for (i = 0; i < len; i++) {
         size += sprintf(buf + size, " %02x", msg_buf[i]);
     }
     ALOGD("[halimp] %s, msg:%s", __FUNCTION__, buf);
 }

 void HdmiCecMock::handleHotplugMessage(unsigned char* msgBuf) {
     HotplugEvent hotplugEvent{.connected = ((msgBuf[3]) & 0xf) > 0,
                               .portId = static_cast<uint32_t>(msgBuf[0] & 0xf)};

     if (hotplugEvent.portId >= mPortInfo.size()) {
         ALOGD("[halimp] ignore hot plug message, id %x does not exist", hotplugEvent.portId);
         return;
     }

     ALOGD("[halimp] hot plug port id %x, is connected %x", (msgBuf[0] & 0xf), (msgBuf[3] & 0xf));
     if (mPortInfo[hotplugEvent.portId].type == HdmiPortType::OUTPUT) {
         mPhysicalAddress =
                 ((hotplugEvent.connected == 0) ? 0xffff : ((msgBuf[1] << 8) | (msgBuf[2])));
         mPortInfo[hotplugEvent.portId].physicalAddress = mPhysicalAddress;
         ALOGD("[halimp] hot plug physical address %x", mPhysicalAddress);
     }

     // todo update connection status

     if (mCallback != nullptr) {
         mCallback->onHotplugEvent(hotplugEvent);
     }
 }

 void HdmiCecMock::handleCecMessage(unsigned char* msgBuf, int megSize) {
     ::android::hardware::tv::cec::V1_1::CecMessage message;
     size_t length = std::min(static_cast<size_t>(megSize - 1),
                              static_cast<size_t>(MaxLength::MESSAGE_BODY));
     message.body.resize(length);

     for (size_t i = 0; i < length; ++i) {
         message.body[i] = static_cast<uint8_t>(msgBuf[i + 1]);
         ALOGD("[halimp] msg body %x", message.body[i]);
     }

     message.initiator = static_cast<::android::hardware::tv::cec::V1_1::CecLogicalAddress>(
             (msgBuf[0] >> 4) & 0xf);
     ALOGD("[halimp] msg init %x", message.initiator);
     message.destination = static_cast<::android::hardware::tv::cec::V1_1::CecLogicalAddress>(
             (msgBuf[0] >> 0) & 0xf);
     ALOGD("[halimp] msg dest %x", message.destination);

     // messageValidateAndHandle(&event);

     if (mCallback != nullptr) {
         mCallback->onCecMessage_1_1(message);
     }
 }

 void HdmiCecMock::threadLoop() {
     ALOGD("[halimp] threadLoop start.");
     unsigned char msgBuf[CEC_MESSAGE_BODY_MAX_LENGTH];
     int r = -1;

     // open the input pipe
     while (mInputFile < 0) {
         usleep(1000 * 1000);
         mInputFile = open(CEC_MSG_IN_FIFO, O_RDONLY);
     }
     ALOGD("[halimp] file open ok, fd = %d.", mInputFile);

     while (mCecThreadRun) {
         if (!mOptionSystemCecControl) {
             usleep(1000 * 1000);
             continue;
         }

         memset(msgBuf, 0, sizeof(msgBuf));
         // try to get a message from dev.
         // echo -n -e '\x04\x83' >> /dev/cec
         r = readMessageFromFifo(msgBuf, CEC_MESSAGE_BODY_MAX_LENGTH);
         if (r <= 1) {
             // ignore received ping messages
             continue;
         }

         printCecMsgBuf((const char*)msgBuf, r);

         if (((msgBuf[0] >> 4) & 0xf) == 0xf) {
             // the message is a hotplug event
             handleHotplugMessage(msgBuf);
             continue;
         }

         handleCecMessage(msgBuf, r);
     }

     ALOGD("[halimp] thread end.");
     // mCecDevice.mExited = true;
 }

 HdmiCecMock::HdmiCecMock() {
     ALOGE("[halimp] Opening a virtual HAL for testing and virtual machine.");
     mCallback = nullptr;
     mPortInfo.resize(mTotalPorts);
     mPortConnectionStatus.resize(mTotalPorts);
     mPortInfo[0] = {.type = HdmiPortType::OUTPUT,
                     .portId = static_cast<uint32_t>(1),
                     .cecSupported = true,
                     .arcSupported = false,
                     .physicalAddress = mPhysicalAddress};
     mPortConnectionStatus[0] = false;
 }

 }  // namespace implementation
 }  // namespace V1_1
 }  // namespace cec
 }  // namespace tv
 }  // namespace hardware
 }  // namespace android
	/*
	* Copyright (C) 2021 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 "android.hardware.tv.cec@1.1"
	#include <android-base/logging.h>
	#include <utils/Log.h>

	#include <hardware/hardware.h>
	#include <hardware/hdmi_cec.h>
	#include "HdmiCecMock.h"

	namespace android {
	namespace hardware {
	namespace tv {
	namespace cec {
	namespace V1_1 {
	namespace implementation {

	class WrappedCallback : public ::android::hardware::tv::cec::V1_1::IHdmiCecCallback {
	public:
	WrappedCallback(sp<::android::hardware::tv::cec::V1_0::IHdmiCecCallback> callback) {
	mCallback = callback;
	}

	Return<void> onCecMessage(const ::android::hardware::tv::cec::V1_0::CecMessage& message) {
	mCallback->onCecMessage(message);
	return Void();
	}
	Return<void> onCecMessage_1_1(const ::android::hardware::tv::cec::V1_1::CecMessage& message) {
	::android::hardware::tv::cec::V1_0::CecMessage cecMessage;
	cecMessage.initiator =
	::android::hardware::tv::cec::V1_0::CecLogicalAddress(message.initiator);
	cecMessage.destination =
	::android::hardware::tv::cec::V1_0::CecLogicalAddress(message.destination);
	cecMessage.body = message.body;
	mCallback->onCecMessage(cecMessage);
	return Void();
	}
	Return<void> onHotplugEvent(const ::android::hardware::tv::cec::V1_0::HotplugEvent& event) {
	mCallback->onHotplugEvent(event);
	return Void();
	}

	private:
	sp<::android::hardware::tv::cec::V1_0::IHdmiCecCallback> mCallback;
	};

	/*
	* (*set_option)() passes flags controlling the way HDMI-CEC service works down
	* to HAL implementation. Those flags will be used in case the feature needs
	* update in HAL itself, firmware or microcontroller.
	*/
	void HdmiCecMock::cec_set_option(int flag, int value) {
	// maintain options and set them accordingly
	switch (flag) {
	case HDMI_OPTION_WAKEUP:
	mOptionWakeUp = value;
	break;
	case HDMI_OPTION_ENABLE_CEC:
	mOptionEnableCec = value;
	break;
	case HDMI_OPTION_SYSTEM_CEC_CONTROL:
	mOptionSystemCecControl = value;
	break;
	case HDMI_OPTION_SET_LANG:
	mOptionLanguage = value;
	break;
	}
	}

	// Methods from ::android::hardware::tv::cec::V1_0::IHdmiCec follow.
	Return<Result> HdmiCecMock::addLogicalAddress(CecLogicalAddress addr) {
	return addLogicalAddress_1_1(::android::hardware::tv::cec::V1_1::CecLogicalAddress(addr));
	}

	Return<void> HdmiCecMock::clearLogicalAddress() {
	// remove logical address from the list
	mLogicalAddresses = {};
	return Void();
	}

	Return<void> HdmiCecMock::getPhysicalAddress(getPhysicalAddress_cb _hidl_cb) {
	// maintain a physical address and return it
	// default 0xFFFF, update on hotplug event
	_hidl_cb(Result::SUCCESS, mPhysicalAddress);
	return Void();
	}

	Return<SendMessageResult> HdmiCecMock::sendMessage(const CecMessage& message) {
	::android::hardware::tv::cec::V1_1::CecMessage cecMessage;
	cecMessage.initiator = ::android::hardware::tv::cec::V1_1::CecLogicalAddress(message.initiator);
	cecMessage.destination =
	::android::hardware::tv::cec::V1_1::CecLogicalAddress(message.destination);
	cecMessage.body = message.body;
	return sendMessage_1_1(cecMessage);
	}

	Return<void> HdmiCecMock::setCallback(const sp<IHdmiCecCallback>& callback) {
	return setCallback_1_1(new WrappedCallback(callback));
	}

	Return<int32_t> HdmiCecMock::getCecVersion() {
	// maintain a cec version and return it
	return mCecVersion;
	}

	Return<uint32_t> HdmiCecMock::getVendorId() {
	return mCecVendorId;
	}

	Return<void> HdmiCecMock::getPortInfo(getPortInfo_cb _hidl_cb) {
	// TODO ready port info from device specific config
	_hidl_cb(mPortInfo);
	return Void();
	}

	Return<void> HdmiCecMock::setOption(OptionKey key, bool value) {
	cec_set_option(static_cast<int>(key), value ? 1 : 0);
	return Void();
	}

	Return<void> HdmiCecMock::setLanguage(const hidl_string& language) {
	if (language.size() != 3) {
	LOG(ERROR) << "Wrong language code: expected 3 letters, but it was " << language.size()
	<< ".";
	return Void();
	}
	// TODO validate if language is a valid language code
	const char* languageStr = language.c_str();
	int convertedLanguage = ((languageStr[0] & 0xFF) << 16) \| ((languageStr[1] & 0xFF) << 8) \|
	(languageStr[2] & 0xFF);
	cec_set_option(HDMI_OPTION_SET_LANG, convertedLanguage);
	return Void();
	}

	Return<void> HdmiCecMock::enableAudioReturnChannel(int32_t portId __unused, bool enable __unused) {
	// Maintain ARC status
	return Void();
	}

	Return<bool> HdmiCecMock::isConnected(int32_t portId) {
	// maintain port connection status and update on hotplug event
	if (portId < mTotalPorts && portId >= 0) {
	return mPortConnectionStatus[portId];
	}
	return false;
	}

	// Methods from ::android::hardware::tv::cec::V1_1::IHdmiCec follow.
	Return<Result> HdmiCecMock::addLogicalAddress_1_1(
	::android::hardware::tv::cec::V1_1::CecLogicalAddress addr) {
	// have a list to maintain logical addresses
	int size = mLogicalAddresses.size();
	mLogicalAddresses.resize(size + 1);
	mLogicalAddresses[size + 1] = addr;
	return Result::SUCCESS;
	}

	Return<SendMessageResult> HdmiCecMock::sendMessage_1_1(
	const ::android::hardware::tv::cec::V1_1::CecMessage& message) {
	if (message.body.size() == 0) {
	return SendMessageResult::NACK;
	}
	sendMessageToFifo(message);
	return SendMessageResult::SUCCESS;
	}

	Return<void> HdmiCecMock::setCallback_1_1(
	const sp<::android::hardware::tv::cec::V1_1::IHdmiCecCallback>& callback) {
	if (mCallback != nullptr) {
	mCallback = nullptr;
	}

	if (callback != nullptr) {
	mCallback = callback;
	mCallback->linkToDeath(this, 0 /cookie/);

	mInputFile = open(CEC_MSG_IN_FIFO, O_RDWR);
	mOutputFile = open(CEC_MSG_OUT_FIFO, O_RDWR);
	pthread_create(&mThreadId, NULL, __threadLoop, this);
	pthread_setname_np(mThreadId, "hdmi_cec_loop");
	}
	return Void();
	}

	void* HdmiCecMock::__threadLoop(void* user) {
	HdmiCecMock* const self = static_cast<HdmiCecMock*>(user);
	self->threadLoop();
	return 0;
	}

	int HdmiCecMock::readMessageFromFifo(unsigned char* buf, int msgCount) {
	if (msgCount <= 0 \|\| !buf) {
	return 0;
	}

	int ret = -1;
	/* maybe blocked at driver */
	ret = read(mInputFile, buf, msgCount);
	if (ret < 0) {
	ALOGE("[halimp] read :%s failed, ret:%d\n", CEC_MSG_IN_FIFO, ret);
	return -1;
	}

	return ret;
	}

	int HdmiCecMock::sendMessageToFifo(const ::android::hardware::tv::cec::V1_1::CecMessage& message) {
	unsigned char msgBuf[CEC_MESSAGE_BODY_MAX_LENGTH];
	int ret = -1;

	memset(msgBuf, 0, sizeof(msgBuf));
	msgBuf[0] = ((static_cast<uint8_t>(message.initiator) & 0xf) << 4) \|
	(static_cast<uint8_t>(message.destination) & 0xf);

	size_t length = std::min(static_cast<size_t>(message.body.size()),
	static_cast<size_t>(MaxLength::MESSAGE_BODY));
	for (size_t i = 0; i < length; ++i) {
	msgBuf[i + 1] = static_cast<unsigned char>(message.body[i]);
	}

	// open the output pipe for writing outgoing cec message
	mOutputFile = open(CEC_MSG_OUT_FIFO, O_WRONLY);
	if (mOutputFile < 0) {
	ALOGD("[halimp] file open failed for writing");
	return -1;
	}

	// write message into the output pipe
	ret = write(mOutputFile, msgBuf, length + 1);
	close(mOutputFile);
	if (ret < 0) {
	ALOGE("[halimp] write :%s failed, ret:%d\n", CEC_MSG_OUT_FIFO, ret);
	return -1;
	}
	return ret;
	}

	void HdmiCecMock::printCecMsgBuf(const char* msg_buf, int len) {
	char buf[64] = {};
	int i, size = 0;
	memset(buf, 0, sizeof(buf));
	for (i = 0; i < len; i++) {
	size += sprintf(buf + size, " %02x", msg_buf[i]);
	}
	ALOGD("[halimp] %s, msg:%s", __FUNCTION__, buf);
	}

	void HdmiCecMock::handleHotplugMessage(unsigned char* msgBuf) {
	HotplugEvent hotplugEvent{.connected = ((msgBuf[3]) & 0xf) > 0,
	.portId = static_cast<uint32_t>(msgBuf[0] & 0xf)};

	if (hotplugEvent.portId >= mPortInfo.size()) {
	ALOGD("[halimp] ignore hot plug message, id %x does not exist", hotplugEvent.portId);
	return;
	}

	ALOGD("[halimp] hot plug port id %x, is connected %x", (msgBuf[0] & 0xf), (msgBuf[3] & 0xf));
	if (mPortInfo[hotplugEvent.portId].type == HdmiPortType::OUTPUT) {
	mPhysicalAddress =
	((hotplugEvent.connected == 0) ? 0xffff : ((msgBuf[1] << 8) \| (msgBuf[2])));
	mPortInfo[hotplugEvent.portId].physicalAddress = mPhysicalAddress;
	ALOGD("[halimp] hot plug physical address %x", mPhysicalAddress);
	}

	// todo update connection status

	if (mCallback != nullptr) {
	mCallback->onHotplugEvent(hotplugEvent);
	}
	}

	void HdmiCecMock::handleCecMessage(unsigned char* msgBuf, int megSize) {
	::android::hardware::tv::cec::V1_1::CecMessage message;
	size_t length = std::min(static_cast<size_t>(megSize - 1),
	static_cast<size_t>(MaxLength::MESSAGE_BODY));
	message.body.resize(length);

	for (size_t i = 0; i < length; ++i) {
	message.body[i] = static_cast<uint8_t>(msgBuf[i + 1]);
	ALOGD("[halimp] msg body %x", message.body[i]);
	}

	message.initiator = static_cast<::android::hardware::tv::cec::V1_1::CecLogicalAddress>(
	(msgBuf[0] >> 4) & 0xf);
	ALOGD("[halimp] msg init %x", message.initiator);
	message.destination = static_cast<::android::hardware::tv::cec::V1_1::CecLogicalAddress>(
	(msgBuf[0] >> 0) & 0xf);
	ALOGD("[halimp] msg dest %x", message.destination);

	// messageValidateAndHandle(&event);

	if (mCallback != nullptr) {
	mCallback->onCecMessage_1_1(message);
	}
	}

	void HdmiCecMock::threadLoop() {
	ALOGD("[halimp] threadLoop start.");
	unsigned char msgBuf[CEC_MESSAGE_BODY_MAX_LENGTH];
	int r = -1;

	// open the input pipe
	while (mInputFile < 0) {
	usleep(1000 * 1000);
	mInputFile = open(CEC_MSG_IN_FIFO, O_RDONLY);
	}
	ALOGD("[halimp] file open ok, fd = %d.", mInputFile);

	while (mCecThreadRun) {
	if (!mOptionSystemCecControl) {
	usleep(1000 * 1000);
	continue;
	}

	memset(msgBuf, 0, sizeof(msgBuf));
	// try to get a message from dev.
	// echo -n -e '\x04\x83' >> /dev/cec
	r = readMessageFromFifo(msgBuf, CEC_MESSAGE_BODY_MAX_LENGTH);
	if (r <= 1) {
	// ignore received ping messages
	continue;
	}

	printCecMsgBuf((const char*)msgBuf, r);

	if (((msgBuf[0] >> 4) & 0xf) == 0xf) {
	// the message is a hotplug event
	handleHotplugMessage(msgBuf);
	continue;
	}

	handleCecMessage(msgBuf, r);
	}

	ALOGD("[halimp] thread end.");
	// mCecDevice.mExited = true;
	}

	HdmiCecMock::HdmiCecMock() {
	ALOGE("[halimp] Opening a virtual HAL for testing and virtual machine.");
	mCallback = nullptr;
	mPortInfo.resize(mTotalPorts);
	mPortConnectionStatus.resize(mTotalPorts);
	mPortInfo[0] = {.type = HdmiPortType::OUTPUT,
	.portId = static_cast<uint32_t>(1),
	.cecSupported = true,
	.arcSupported = false,
	.physicalAddress = mPhysicalAddress};
	mPortConnectionStatus[0] = false;
	}

	} // namespace implementation
	} // namespace V1_1
	} // namespace cec
	} // namespace tv
	} // namespace hardware
	} // namespace android