/* * Copyright (C) 2016 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@1.0-impl" #include <android-base/logging.h> #include <hardware/hardware.h> #include <hardware/hdmi_cec.h> #include "HdmiCec.h" namespace android { namespace hardware { namespace tv { namespace cec { namespace V1_0 { namespace implementation { static_assert(CEC_DEVICE_INACTIVE == static_cast<int>(CecDeviceType::INACTIVE), "CecDeviceType::INACTIVE must match legacy value."); static_assert(CEC_DEVICE_TV == static_cast<int>(CecDeviceType::TV), "CecDeviceType::TV must match legacy value."); static_assert(CEC_DEVICE_RECORDER == static_cast<int>(CecDeviceType::RECORDER), "CecDeviceType::RECORDER must match legacy value."); static_assert(CEC_DEVICE_TUNER == static_cast<int>(CecDeviceType::TUNER), "CecDeviceType::TUNER must match legacy value."); static_assert(CEC_DEVICE_PLAYBACK == static_cast<int>(CecDeviceType::PLAYBACK), "CecDeviceType::PLAYBACK must match legacy value."); static_assert(CEC_DEVICE_AUDIO_SYSTEM == static_cast<int>(CecDeviceType::AUDIO_SYSTEM), "CecDeviceType::AUDIO_SYSTEM must match legacy value."); static_assert(CEC_DEVICE_MAX == static_cast<int>(CecDeviceType::MAX), "CecDeviceType::MAX must match legacy value."); static_assert(CEC_ADDR_TV == static_cast<int>(CecLogicalAddress::TV), "CecLogicalAddress::TV must match legacy value."); static_assert(CEC_ADDR_RECORDER_1 == static_cast<int>(CecLogicalAddress::RECORDER_1), "CecLogicalAddress::RECORDER_1 must match legacy value."); static_assert(CEC_ADDR_RECORDER_2 == static_cast<int>(CecLogicalAddress::RECORDER_2), "CecLogicalAddress::RECORDER_2 must match legacy value."); static_assert(CEC_ADDR_TUNER_1 == static_cast<int>(CecLogicalAddress::TUNER_1), "CecLogicalAddress::TUNER_1 must match legacy value."); static_assert(CEC_ADDR_PLAYBACK_1 == static_cast<int>(CecLogicalAddress::PLAYBACK_1), "CecLogicalAddress::PLAYBACK_1 must match legacy value."); static_assert(CEC_ADDR_AUDIO_SYSTEM == static_cast<int>(CecLogicalAddress::AUDIO_SYSTEM), "CecLogicalAddress::AUDIO_SYSTEM must match legacy value."); static_assert(CEC_ADDR_TUNER_2 == static_cast<int>(CecLogicalAddress::TUNER_2), "CecLogicalAddress::TUNER_2 must match legacy value."); static_assert(CEC_ADDR_TUNER_3 == static_cast<int>(CecLogicalAddress::TUNER_3), "CecLogicalAddress::TUNER_3 must match legacy value."); static_assert(CEC_ADDR_PLAYBACK_2 == static_cast<int>(CecLogicalAddress::PLAYBACK_2), "CecLogicalAddress::PLAYBACK_2 must match legacy value."); static_assert(CEC_ADDR_RECORDER_3 == static_cast<int>(CecLogicalAddress::RECORDER_3), "CecLogicalAddress::RECORDER_3 must match legacy value."); static_assert(CEC_ADDR_TUNER_4 == static_cast<int>(CecLogicalAddress::TUNER_4), "CecLogicalAddress::TUNER_4 must match legacy value."); static_assert(CEC_ADDR_PLAYBACK_3 == static_cast<int>(CecLogicalAddress::PLAYBACK_3), "CecLogicalAddress::PLAYBACK_3 must match legacy value."); static_assert(CEC_ADDR_FREE_USE == static_cast<int>(CecLogicalAddress::FREE_USE), "CecLogicalAddress::FREE_USE must match legacy value."); static_assert(CEC_ADDR_UNREGISTERED == static_cast<int>(CecLogicalAddress::UNREGISTERED), "CecLogicalAddress::UNREGISTERED must match legacy value."); static_assert(CEC_ADDR_BROADCAST == static_cast<int>(CecLogicalAddress::BROADCAST), "CecLogicalAddress::BROADCAST must match legacy value."); static_assert(CEC_MESSAGE_FEATURE_ABORT == static_cast<int>(CecMessageType::FEATURE_ABORT), "CecMessageType::FEATURE_ABORT must match legacy value."); static_assert(CEC_MESSAGE_IMAGE_VIEW_ON == static_cast<int>(CecMessageType::IMAGE_VIEW_ON), "CecMessageType::IMAGE_VIEW_ON must match legacy value."); static_assert(CEC_MESSAGE_TUNER_STEP_INCREMENT == static_cast<int>( CecMessageType::TUNER_STEP_INCREMENT), "CecMessageType::TUNER_STEP_INCREMENT must match legacy value."); static_assert(CEC_MESSAGE_TUNER_STEP_DECREMENT == static_cast<int>( CecMessageType::TUNER_STEP_DECREMENT), "CecMessageType::TUNER_STEP_DECREMENT must match legacy value."); static_assert(CEC_MESSAGE_TUNER_DEVICE_STATUS == static_cast<int>( CecMessageType::TUNER_DEVICE_STATUS), "CecMessageType::TUNER_DEVICE_STATUS must match legacy value."); static_assert(CEC_MESSAGE_GIVE_TUNER_DEVICE_STATUS == static_cast<int>( CecMessageType::GIVE_TUNER_DEVICE_STATUS), "CecMessageType::GIVE_TUNER_DEVICE_STATUS must match legacy value."); static_assert(CEC_MESSAGE_RECORD_ON == static_cast<int>(CecMessageType::RECORD_ON), "CecMessageType::RECORD_ON must match legacy value."); static_assert(CEC_MESSAGE_RECORD_STATUS == static_cast<int>(CecMessageType::RECORD_STATUS), "CecMessageType::RECORD_STATUS must match legacy value."); static_assert(CEC_MESSAGE_RECORD_OFF == static_cast<int>(CecMessageType::RECORD_OFF), "CecMessageType::RECORD_OFF must match legacy value."); static_assert(CEC_MESSAGE_TEXT_VIEW_ON == static_cast<int>(CecMessageType::TEXT_VIEW_ON), "CecMessageType::TEXT_VIEW_ON must match legacy value."); static_assert(CEC_MESSAGE_RECORD_TV_SCREEN == static_cast<int>(CecMessageType::RECORD_TV_SCREEN), "CecMessageType::RECORD_TV_SCREEN must match legacy value."); static_assert(CEC_MESSAGE_GIVE_DECK_STATUS == static_cast<int>(CecMessageType::GIVE_DECK_STATUS), "CecMessageType::GIVE_DECK_STATUS must match legacy value."); static_assert(CEC_MESSAGE_STANDBY == static_cast<int>(CecMessageType::STANDBY), "CecMessageType::STANDBY must match legacy value."); static_assert(CEC_MESSAGE_PLAY == static_cast<int>(CecMessageType::PLAY), "CecMessageType::PLAY must match legacy value."); static_assert(CEC_MESSAGE_DECK_CONTROL == static_cast<int>(CecMessageType::DECK_CONTROL), "CecMessageType::DECK_CONTROL must match legacy value."); static_assert(CEC_MESSAGE_TIMER_CLEARED_STATUS == static_cast<int>( CecMessageType::TIMER_CLEARED_STATUS), "CecMessageType::TIMER_CLEARED_STATUS must match legacy value."); static_assert(CEC_MESSAGE_USER_CONTROL_PRESSED == static_cast<int>( CecMessageType::USER_CONTROL_PRESSED), "CecMessageType::USER_CONTROL_PRESSED must match legacy value."); static_assert(CEC_MESSAGE_USER_CONTROL_RELEASED == static_cast<int>( CecMessageType::USER_CONTROL_RELEASED), "CecMessageType::USER_CONTROL_RELEASED must match legacy value."); static_assert(CEC_MESSAGE_GIVE_OSD_NAME == static_cast<int>(CecMessageType::GIVE_OSD_NAME), "CecMessageType::GIVE_OSD_NAME must match legacy value."); static_assert(CEC_MESSAGE_SET_OSD_NAME == static_cast<int>(CecMessageType::SET_OSD_NAME), "CecMessageType::SET_OSD_NAME must match legacy value."); static_assert(CEC_MESSAGE_SYSTEM_AUDIO_MODE_REQUEST == static_cast<int>( CecMessageType::SYSTEM_AUDIO_MODE_REQUEST), "CecMessageType::SYSTEM_AUDIO_MODE_REQUEST must match legacy value."); static_assert(CEC_MESSAGE_GIVE_AUDIO_STATUS == static_cast<int>(CecMessageType::GIVE_AUDIO_STATUS), "CecMessageType::GIVE_AUDIO_STATUS must match legacy value."); static_assert(CEC_MESSAGE_SET_SYSTEM_AUDIO_MODE == static_cast<int>( CecMessageType::SET_SYSTEM_AUDIO_MODE), "CecMessageType::SET_SYSTEM_AUDIO_MODE must match legacy value."); static_assert(CEC_MESSAGE_REPORT_AUDIO_STATUS == static_cast<int>( CecMessageType::REPORT_AUDIO_STATUS), "CecMessageType::REPORT_AUDIO_STATUS must match legacy value."); static_assert(CEC_MESSAGE_GIVE_SYSTEM_AUDIO_MODE_STATUS == static_cast<int>( CecMessageType::GIVE_SYSTEM_AUDIO_MODE_STATUS), "CecMessageType::GIVE_SYSTEM_AUDIO_MODE_STATUS must match legacy value."); static_assert(CEC_MESSAGE_SYSTEM_AUDIO_MODE_STATUS == static_cast<int>( CecMessageType::SYSTEM_AUDIO_MODE_STATUS), "CecMessageType::SYSTEM_AUDIO_MODE_STATUS must match legacy value."); static_assert(CEC_MESSAGE_ROUTING_CHANGE == static_cast<int>(CecMessageType::ROUTING_CHANGE), "CecMessageType::ROUTING_CHANGE must match legacy value."); static_assert(CEC_MESSAGE_ROUTING_INFORMATION == static_cast<int>( CecMessageType::ROUTING_INFORMATION), "CecMessageType::ROUTING_INFORMATION must match legacy value."); static_assert(CEC_MESSAGE_ACTIVE_SOURCE == static_cast<int>(CecMessageType::ACTIVE_SOURCE), "CecMessageType::ACTIVE_SOURCE must match legacy value."); static_assert(CEC_MESSAGE_GIVE_PHYSICAL_ADDRESS == static_cast<int>( CecMessageType::GIVE_PHYSICAL_ADDRESS), "CecMessageType::GIVE_PHYSICAL_ADDRESS must match legacy value."); static_assert(CEC_MESSAGE_REPORT_PHYSICAL_ADDRESS == static_cast<int>( CecMessageType::REPORT_PHYSICAL_ADDRESS), "CecMessageType::REPORT_PHYSICAL_ADDRESS must match legacy value."); static_assert(CEC_MESSAGE_REQUEST_ACTIVE_SOURCE == static_cast<int>( CecMessageType::REQUEST_ACTIVE_SOURCE), "CecMessageType::REQUEST_ACTIVE_SOURCE must match legacy value."); static_assert(CEC_MESSAGE_SET_STREAM_PATH == static_cast<int>(CecMessageType::SET_STREAM_PATH), "CecMessageType::SET_STREAM_PATH must match legacy value."); static_assert(CEC_MESSAGE_DEVICE_VENDOR_ID == static_cast<int>(CecMessageType::DEVICE_VENDOR_ID), "CecMessageType::DEVICE_VENDOR_ID must match legacy value."); static_assert(CEC_MESSAGE_VENDOR_COMMAND == static_cast<int>(CecMessageType::VENDOR_COMMAND), "CecMessageType::VENDOR_COMMAND must match legacy value."); static_assert(CEC_MESSAGE_VENDOR_REMOTE_BUTTON_DOWN == static_cast<int>( CecMessageType::VENDOR_REMOTE_BUTTON_DOWN), "CecMessageType::VENDOR_REMOTE_BUTTON_DOWN must match legacy value."); static_assert(CEC_MESSAGE_VENDOR_REMOTE_BUTTON_UP == static_cast<int>( CecMessageType::VENDOR_REMOTE_BUTTON_UP), "CecMessageType::VENDOR_REMOTE_BUTTON_UP must match legacy value."); static_assert(CEC_MESSAGE_GIVE_DEVICE_VENDOR_ID == static_cast<int>( CecMessageType::GIVE_DEVICE_VENDOR_ID), "CecMessageType::GIVE_DEVICE_VENDOR_ID must match legacy value."); static_assert(CEC_MESSAGE_MENU_REQUEST == static_cast<int>(CecMessageType::MENU_REQUEST), "CecMessageType::MENU_REQUEST must match legacy value."); static_assert(CEC_MESSAGE_MENU_STATUS == static_cast<int>(CecMessageType::MENU_STATUS), "CecMessageType::MENU_STATUS must match legacy value."); static_assert(CEC_MESSAGE_GIVE_DEVICE_POWER_STATUS == static_cast<int>( CecMessageType::GIVE_DEVICE_POWER_STATUS), "CecMessageType::GIVE_DEVICE_POWER_STATUS must match legacy value."); static_assert(CEC_MESSAGE_REPORT_POWER_STATUS == static_cast<int>( CecMessageType::REPORT_POWER_STATUS), "CecMessageType::REPORT_POWER_STATUS must match legacy value."); static_assert(CEC_MESSAGE_GET_MENU_LANGUAGE == static_cast<int>(CecMessageType::GET_MENU_LANGUAGE), "CecMessageType::GET_MENU_LANGUAGE must match legacy value."); static_assert(CEC_MESSAGE_SELECT_ANALOG_SERVICE == static_cast<int>( CecMessageType::SELECT_ANALOG_SERVICE), "CecMessageType::SELECT_ANALOG_SERVICE must match legacy value."); static_assert(CEC_MESSAGE_SELECT_DIGITAL_SERVICE == static_cast<int>( CecMessageType::SELECT_DIGITAL_SERVICE), "CecMessageType::SELECT_DIGITAL_SERVICE must match legacy value."); static_assert(CEC_MESSAGE_SET_DIGITAL_TIMER == static_cast<int>(CecMessageType::SET_DIGITAL_TIMER), "CecMessageType::SET_DIGITAL_TIMER must match legacy value."); static_assert(CEC_MESSAGE_CLEAR_DIGITAL_TIMER == static_cast<int>( CecMessageType::CLEAR_DIGITAL_TIMER), "CecMessageType::CLEAR_DIGITAL_TIMER must match legacy value."); static_assert(CEC_MESSAGE_SET_AUDIO_RATE == static_cast<int>(CecMessageType::SET_AUDIO_RATE), "CecMessageType::SET_AUDIO_RATE must match legacy value."); static_assert(CEC_MESSAGE_INACTIVE_SOURCE == static_cast<int>(CecMessageType::INACTIVE_SOURCE), "CecMessageType::INACTIVE_SOURCE must match legacy value."); static_assert(CEC_MESSAGE_CEC_VERSION == static_cast<int>(CecMessageType::CEC_VERSION), "CecMessageType::CEC_VERSION must match legacy value."); static_assert(CEC_MESSAGE_GET_CEC_VERSION == static_cast<int>(CecMessageType::GET_CEC_VERSION), "CecMessageType::GET_CEC_VERSION must match legacy value."); static_assert(CEC_MESSAGE_VENDOR_COMMAND_WITH_ID == static_cast<int>( CecMessageType::VENDOR_COMMAND_WITH_ID), "CecMessageType::VENDOR_COMMAND_WITH_ID must match legacy value."); static_assert(CEC_MESSAGE_CLEAR_EXTERNAL_TIMER == static_cast<int>( CecMessageType::CLEAR_EXTERNAL_TIMER), "CecMessageType::CLEAR_EXTERNAL_TIMER must match legacy value."); static_assert(CEC_MESSAGE_SET_EXTERNAL_TIMER == static_cast<int>( CecMessageType::SET_EXTERNAL_TIMER), "CecMessageType::SET_EXTERNAL_TIMER must match legacy value."); static_assert(CEC_MESSAGE_INITIATE_ARC == static_cast<int>(CecMessageType::INITIATE_ARC), "CecMessageType::INITIATE_ARC must match legacy value."); static_assert(CEC_MESSAGE_REPORT_ARC_INITIATED == static_cast<int>( CecMessageType::REPORT_ARC_INITIATED), "CecMessageType::REPORT_ARC_INITIATED must match legacy value."); static_assert(CEC_MESSAGE_REPORT_ARC_TERMINATED == static_cast<int>( CecMessageType::REPORT_ARC_TERMINATED), "CecMessageType::REPORT_ARC_TERMINATED must match legacy value."); static_assert(CEC_MESSAGE_REQUEST_ARC_INITIATION == static_cast<int>( CecMessageType::REQUEST_ARC_INITIATION), "CecMessageType::REQUEST_ARC_INITIATION must match legacy value."); static_assert(CEC_MESSAGE_REQUEST_ARC_TERMINATION == static_cast<int>( CecMessageType::REQUEST_ARC_TERMINATION), "CecMessageType::REQUEST_ARC_TERMINATION must match legacy value."); static_assert(CEC_MESSAGE_TERMINATE_ARC == static_cast<int>(CecMessageType::TERMINATE_ARC), "CecMessageType::TERMINATE_ARC must match legacy value."); static_assert(CEC_MESSAGE_ABORT == static_cast<int>(CecMessageType::ABORT), "CecMessageType::ABORT must match legacy value."); static_assert(ABORT_UNRECOGNIZED_MODE == static_cast<int>(AbortReason::UNRECOGNIZED_MODE), "AbortReason::UNRECOGNIZED_MODE must match legacy value."); static_assert(ABORT_NOT_IN_CORRECT_MODE == static_cast<int>(AbortReason::NOT_IN_CORRECT_MODE), "AbortReason::NOT_IN_CORRECT_MODE must match legacy value."); static_assert(ABORT_CANNOT_PROVIDE_SOURCE == static_cast<int>(AbortReason::CANNOT_PROVIDE_SOURCE), "AbortReason::CANNOT_PROVIDE_SOURCE must match legacy value."); static_assert(ABORT_INVALID_OPERAND == static_cast<int>(AbortReason::INVALID_OPERAND), "AbortReason::INVALID_OPERAND must match legacy value."); static_assert(ABORT_REFUSED == static_cast<int>(AbortReason::REFUSED), "AbortReason::REFUSED must match legacy value."); static_assert(ABORT_UNABLE_TO_DETERMINE == static_cast<int>(AbortReason::UNABLE_TO_DETERMINE), "AbortReason::UNABLE_TO_DETERMINE must match legacy value."); static_assert(HDMI_RESULT_SUCCESS == static_cast<int>(SendMessageResult::SUCCESS), "SendMessageResult::SUCCESS must match legacy value."); static_assert(HDMI_RESULT_NACK == static_cast<int>(SendMessageResult::NACK), "SendMessageResult::NACK must match legacy value."); static_assert(HDMI_RESULT_BUSY == static_cast<int>(SendMessageResult::BUSY), "SendMessageResult::BUSY must match legacy value."); static_assert(HDMI_RESULT_FAIL == static_cast<int>(SendMessageResult::FAIL), "SendMessageResult::FAIL must match legacy value."); static_assert(HDMI_INPUT == static_cast<int>(HdmiPortType::INPUT), "HdmiPortType::INPUT must match legacy value."); static_assert(HDMI_OUTPUT == static_cast<int>(HdmiPortType::OUTPUT), "HdmiPortType::OUTPUT must match legacy value."); static_assert(HDMI_OPTION_WAKEUP == static_cast<int>(OptionKey::WAKEUP), "OptionKey::WAKEUP must match legacy value."); static_assert(HDMI_OPTION_ENABLE_CEC == static_cast<int>(OptionKey::ENABLE_CEC), "OptionKey::ENABLE_CEC must match legacy value."); static_assert(HDMI_OPTION_SYSTEM_CEC_CONTROL == static_cast<int>(OptionKey::SYSTEM_CEC_CONTROL), "OptionKey::SYSTEM_CEC_CONTROL must match legacy value."); sp<IHdmiCecCallback> HdmiCec::mCallback = nullptr; HdmiCec::HdmiCec(hdmi_cec_device_t* device) : mDevice(device) { } // Methods from ::android::hardware::tv::cec::V1_0::IHdmiCec follow. Return<Result> HdmiCec::addLogicalAddress(CecLogicalAddress addr) { int ret = mDevice->add_logical_address(mDevice, static_cast<cec_logical_address_t>(addr)); switch (ret) { case 0: return Result::SUCCESS; case -EINVAL: return Result::FAILURE_INVALID_ARGS; case -ENOTSUP: return Result::FAILURE_NOT_SUPPORTED; case -EBUSY: return Result::FAILURE_BUSY; default: return Result::FAILURE_UNKNOWN; } } Return<void> HdmiCec::clearLogicalAddress() { mDevice->clear_logical_address(mDevice); return Void(); } Return<void> HdmiCec::getPhysicalAddress(getPhysicalAddress_cb _hidl_cb) { uint16_t addr; int ret = mDevice->get_physical_address(mDevice, &addr); switch (ret) { case 0: _hidl_cb(Result::SUCCESS, addr); break; case -EBADF: _hidl_cb(Result::FAILURE_INVALID_STATE, addr); break; default: _hidl_cb(Result::FAILURE_UNKNOWN, addr); break; } return Void(); } Return<SendMessageResult> HdmiCec::sendMessage(const CecMessage& message) { cec_message_t legacyMessage { .initiator = static_cast<cec_logical_address_t>(message.initiator), .destination = static_cast<cec_logical_address_t>(message.destination), .length = message.body.size(), }; for (size_t i = 0; i < message.body.size(); ++i) { legacyMessage.body[i] = static_cast<unsigned char>(message.body[i]); } return static_cast<SendMessageResult>(mDevice->send_message(mDevice, &legacyMessage)); } Return<void> HdmiCec::setCallback(const sp<IHdmiCecCallback>& callback) { mCallback = callback; mDevice->register_event_callback(mDevice, eventCallback, nullptr); return Void(); } Return<int32_t> HdmiCec::getCecVersion() { int version; mDevice->get_version(mDevice, &version); return static_cast<int32_t>(version); } Return<uint32_t> HdmiCec::getVendorId() { uint32_t vendor_id; mDevice->get_vendor_id(mDevice, &vendor_id); return vendor_id; } Return<void> HdmiCec::getPortInfo(getPortInfo_cb _hidl_cb) { struct hdmi_port_info* legacyPorts; int numPorts; hidl_vec<HdmiPortInfo> portInfos; mDevice->get_port_info(mDevice, &legacyPorts, &numPorts); portInfos.resize(numPorts); for (int i = 0; i < numPorts; ++i) { portInfos[i] = { .type = static_cast<HdmiPortType>(legacyPorts[i].type), .portId = static_cast<uint32_t>(legacyPorts[i].port_id), .cecSupported = legacyPorts[i].cec_supported != 0, .arcSupported = legacyPorts[i].arc_supported != 0, .physicalAddress = legacyPorts[i].physical_address }; } _hidl_cb(portInfos); return Void(); } Return<void> HdmiCec::setOption(OptionKey key, bool value) { mDevice->set_option(mDevice, static_cast<int>(key), value ? 1 : 0); return Void(); } Return<void> HdmiCec::setLanguage(const hidl_string& language) { if (language.size() != 3) { LOG(ERROR) << "Wrong language code: expected 3 letters, but it was " << language.size() << "."; return Void(); } const char *languageStr = language.c_str(); int convertedLanguage = ((languageStr[0] & 0xFF) << 16) | ((languageStr[1] & 0xFF) << 8) | (languageStr[2] & 0xFF); mDevice->set_option(mDevice, HDMI_OPTION_SET_LANG, convertedLanguage); return Void(); } Return<void> HdmiCec::enableAudioReturnChannel(int32_t portId, bool enable) { mDevice->set_audio_return_channel(mDevice, portId, enable ? 1 : 0); return Void(); } Return<bool> HdmiCec::isConnected(int32_t portId) { return mDevice->is_connected(mDevice, portId) > 0; } IHdmiCec* HIDL_FETCH_IHdmiCec(const char* hal) { hdmi_cec_device_t* hdmi_cec_device; int ret = 0; const hw_module_t* hw_module = nullptr; ret = hw_get_module (HDMI_CEC_HARDWARE_MODULE_ID, &hw_module); if (ret == 0) { ret = hdmi_cec_open (hw_module, &hdmi_cec_device); if (ret != 0) { LOG(ERROR) << "hdmi_cec_open " << hal << " failed: " << ret; } } else { LOG(ERROR) << "hw_get_module " << hal << " failed: " << ret; } if (ret == 0) { return new HdmiCec(hdmi_cec_device); } else { LOG(ERROR) << "Passthrough failed to load legacy HAL."; return nullptr; } } } // namespace implementation } // namespace V1_0 } // namespace cec } // namespace tv } // namespace hardware } // namespace android