CEC: Add implementation of SYSTEM_CEC_CONTROL option to default HdmiCec (9fb5e823) · Commits · e / os / android_hardware_interfaces

tv/cec/1.0/default/HdmiCecDefault.cpp

+53 −1

Original line number	Diff line number	Diff line
		@@ -42,6 +42,7 @@ HdmiCecDefault::HdmiCecDefault() {
		mExitFd = -1;
		mCecEnabled = false;
		mWakeupEnabled = false;
		mCecControlEnabled = false;
		mCallback = nullptr;
		}

		@@ -242,7 +243,9 @@ Return<void> HdmiCecDefault::setOption(OptionKey key, bool value) {
		LOG(DEBUG) << "setOption: WAKEUP: " << value;
		mWakeupEnabled = value;
		break;
		default:
		case OptionKey::SYSTEM_CEC_CONTROL:
		LOG(DEBUG) << "setOption: SYSTEM_CEC_CONTROL: " << value;
		mCecControlEnabled = value;
		break;
		}
		return Void();
		@@ -311,6 +314,7 @@ Return<Result> HdmiCecDefault::init() {

		mCecEnabled = true;
		mWakeupEnabled = true;
		mCecControlEnabled = true;
		return Result::SUCCESS;
		}

		@@ -330,6 +334,7 @@ Return<void> HdmiCecDefault::release() {
		}
		mCecEnabled = false;
		mWakeupEnabled = false;
		mCecControlEnabled = false;
		setCallback(nullptr);
		return Void();
		}
		@@ -404,6 +409,11 @@ void HdmiCecDefault::event_thread() {
		continue;
		}

		if (!mCecControlEnabled && !isTransferableInSleep(msg)) {
		LOG(DEBUG) << "Filter message in standby mode";
		continue;
		}

		if (mCallback != nullptr) {
		size_t length = std::min(msg.len - 1, (uint32_t)MaxLength::MESSAGE_BODY);
		CecMessage cecMessage{
		@@ -437,6 +447,48 @@ bool HdmiCecDefault::isWakeupMessage(cec_msg message) {
		}
		}

		bool HdmiCecDefault::isTransferableInSleep(cec_msg message) {
		int opcode = getOpcode(message);
		switch (opcode) {
		case CEC_MESSAGE_ABORT:
		case CEC_MESSAGE_DEVICE_VENDOR_ID:
		case CEC_MESSAGE_GET_CEC_VERSION:
		case CEC_MESSAGE_GET_MENU_LANGUAGE:
		case CEC_MESSAGE_GIVE_DEVICE_POWER_STATUS:
		case CEC_MESSAGE_GIVE_DEVICE_VENDOR_ID:
		case CEC_MESSAGE_GIVE_OSD_NAME:
		case CEC_MESSAGE_GIVE_PHYSICAL_ADDRESS:
		case CEC_MESSAGE_REPORT_PHYSICAL_ADDRESS:
		case CEC_MESSAGE_REPORT_POWER_STATUS:
		case CEC_MESSAGE_SET_OSD_NAME:
		case CEC_MESSAGE_DECK_CONTROL:
		case CEC_MESSAGE_PLAY:
		case CEC_MESSAGE_IMAGE_VIEW_ON:
		case CEC_MESSAGE_TEXT_VIEW_ON:
		case CEC_MESSAGE_SYSTEM_AUDIO_MODE_REQUEST:
		return true;
		case CEC_MESSAGE_USER_CONTROL_PRESSED:
		return isPowerUICommand(message);
		default:
		return false;
		}
		}

		int HdmiCecDefault::getFirstParam(cec_msg message) {
		return static_cast<uint8_t>(message.msg[2]);
		}

		bool HdmiCecDefault::isPowerUICommand(cec_msg message) {
		int uiCommand = getFirstParam(message);
		switch (uiCommand) {
		case CEC_OP_UI_CMD_POWER:
		case CEC_OP_UI_CMD_DEVICE_ROOT_MENU:
		case CEC_OP_UI_CMD_POWER_ON_FUNCTION:
		return true;
		default:
		return false;
		}
		}
		} // namespace implementation
		} // namespace V1_0
		} // namespace cec

tv/cec/1.0/default/HdmiCecDefault.h

+10 −0

Original line number	Diff line number	Diff line
		@@ -56,7 +56,10 @@ class HdmiCecDefault : public IHdmiCec, public hidl_death_recipient {
		private:
		void event_thread();
		static int getOpcode(cec_msg message);
		static int getFirstParam(cec_msg message);
		static bool isWakeupMessage(cec_msg message);
		static bool isTransferableInSleep(cec_msg message);
		static bool isPowerUICommand(cec_msg message);

		thread mEventThread;

		@@ -67,6 +70,13 @@ class HdmiCecDefault : public IHdmiCec, public hidl_death_recipient {
		* <Text View On>. True by default after initialization.
		*/
		bool mWakeupEnabled;
		/*
		* Updated when system goes into or comes out of standby mode.
		* When set to true, Android system is handling CEC commands.
		* When set to false, microprocessor is handling CEC commands.
		* True by default after initialization.
		*/
		bool mCecControlEnabled;
		sp<IHdmiCecCallback> mCallback;

		int mCecFd;