Update CEC hal to 2.0 (2bb37160) · Commits · e / os / android_hardware_interfaces

tv/cec/2.0/Android.bp

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		// This file is autogenerated by hidl-gen -Landroidbp.

		hidl_interface {
		name: "android.hardware.tv.cec@2.0",
		root: "android.hardware",
		vndk: {
		enabled: true,
		},
		srcs: [
		"types.hal",
		"IHdmiCec.hal",
		"IHdmiCecCallback.hal",
		],
		interfaces: [
		"android.hidl.base@1.0",
		"android.hidl.safe_union@1.0",
		],
		types: [
		"AbortReason",
		"CecAllDeviceTypeValue",
		"CecDeviceFeature",
		"CecDeviceInfo",
		"CecDeviceType",
		"CecLogicalAddress",
		"CecMessage",
		"CecMessageType",
		"CecPowerState",
		"CecRcProfile",
		"CecRcProfile1",
		"CecRcProfileId",
		"CecRcProfileSource",
		"CecTopologyEvent",
		"CecTopologyEventType",
		"CecUICommandCodes",
		"CecVersion",
		"HdmiPortInfo",
		"HdmiPortType",
		"HotplugEvent",
		"MaxLength",
		"OptionKey",
		"Result",
		"SendMessageResult",
		],
		gen_java: true,
		}

tv/cec/2.0/IHdmiCec.hal

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		/*
		* Copyright (C) 2019 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.
		*/

		package android.hardware.tv.cec@2.0;

		import IHdmiCecCallback;

		/**
		* HDMI-CEC HAL interface definition.
		*/
		interface IHdmiCec {
		/**
		* Passes Primary Device Type that must be used in this system.
		*
		* HAL must use it to allocate logical address as specified in CEC section
		* 11.3.2 of the CEC spec 2.0b. Then CEC commands addressed the given
		* logical address can be filtered in.
		* This method shall be able to be called up to twice to support two Primary
		* Device Type as specified in CEC Table 11-8 of the CEC spec 2.0b.
		*
		* @param deviceType that must be used in this system. It must be a valid
		* value in CecDeviceType for the call to succeed.
		* @return result Result status of the operation. SUCCESS if successful,
		* FAILURE_INVALID_ARGS if the given device type is invalid,
		* FAILURE_BUSY if device or resource is busy
		*/
		@callflow(next={"*"})
		addDeviceType(CecDeviceType deviceType) generates (Result result);

		/**
		* Clears all Primary Device Types.
		*
		* It is used when the system plan to reconfigure Primary Device Type,
		* hence to tell HAL to release all logical address associated to them,
		* and change the state back to the beginning.
		*/
		@callflow(next="addDeviceType")
		@exit
		clearDeviceTypes();

		/**
		* Set All Device Types for a Primary Device Type.
		*
		* This value must be used in REPORT_FEATURES message to response
		* GIVE_FEATURES message in HAL.
		*
		* @param allDeviceTypes device all device types for a Primary Device Type.
		*/
		@callflow(next="addDeviceType")
		setAllDeviceTypes(CecAllDeviceTypes allDeviceTypes);

		/**
		* Set Device Features for a Primary Device Type.
		*
		* This value must be used in REPORT_FEATURES message to response
		* GIVE_FEATURES message in HAL.
		*
		* @param deviceType The device Primary Device Type.
		* @param deviceFeatures device features for a Primary Device Type.
		*/
		@callflow(next="addDeviceType")
		setDeviceFeatures(CecDeviceType deviceType,
		CecDeviceFeatures deviceFeatures);

		/**
		* Set Remote Control Profile for a Primary Device Type.
		*
		* This value must be used in REPORT_FEATURES message to response
		* GIVE_FEATURES message in HAL.
		*
		* @param deviceType The device Primary Device Type.
		* @param rcProliles remote control profiles for a Primary Device Type.
		*/
		@callflow(next="addDeviceType")
		setRcProfile(CecDeviceType deviceType, CecRcProfile rcProfile);

		/**
		* Retrieve CEC device information.
		*
		* CEC section 11.3 of the CEC spec 2.0b specify that a device should not
		* ask for static information that another device has already supplied.
		* Therefore, CEC 2.0 software stack need a map to store all cec
		* devices’ information of current CEC network.
		* The device information is broadcasted by a device after it allocates a
		* logical address. Messages used to send out these information are
		* REPORT_FEATURES, REPORT_PHYSICAL_ADDRESS, DEVICE_VENDOR_ID.
		* The spec also requires less than 1 second between REPORT_FEATURES and
		* REPORT_PHYSICAL_ADDRESS message, and less than 2 second between
		* REPORT_PHYSICAL_ADDRESS and DEVICE_VENDOR_ID. An Implementation of
		* device information map in hal can help to meet the timing constraints.
		* Logical addressing is part of the process to build this map, so the
		* implementation shall include allocating logical address too.
		* Whenever a device plug/unplug, the topology of CEC network changes.
		* The hal implementation shall update devices’ information map, and
		* send out onTopologyEvent to Android system. Then Android system
		* will use readDeviceInfo to retreive latest devices’ information of CEC
		* network.
		* If SYSTEM_CEC_CONTROL is false, the hal implementation need continue to
		* maintain and update device information map, and send out pending
		* onTopologyEvent to Android system when SYSTEM_CEC_CONTROL is
		* changed to true.
		*
		* @param logicalAddress logical address of CEC device.
		* @param physicalAddress physical address of CEC device.
		* @return CecDeviceInfo from device information map.
		* @return result Result status of the operation. SUCCESS if successful,
		* FAILURE_INVALID_ARGS if logical or physical address is invalid.
		* FAILURE_INVALID_STATE if device information isn't available yet.
		*/
		@callflow(next="onTopologyChangeEvent")
		readDeviceInfo(CecLogicalAddress logicalAddress,
		CecPhysicalAddress physicalAddress)
		generates (Result result, CecDeviceInfo deviceInfo);

		/**
		* Transmits HDMI-CEC message to other HDMI device.
		*
		* The method must be designed to return in a certain amount of time and not
		* hanging forever. This method MUST complete with in 1 second.
		*
		* It must try retransmission at least once as specified in the section '7.1
		* Frame Re-transmissions' of the CEC Spec 1.4b.
		*
		* @param message CEC message to be sent to other HDMI device.
		* @return result Result status of the operation. SUCCESS if successful,
		* NACK if the sent message is not acknowledged,
		* BUSY if the CEC bus is busy.
		*/
		@callflow(next="*")
		sendMessage(CecMessage message) generates (SendMessageResult result);

		/**
		* Set the callback
		*
		* It is used by the framework to receive CecMessages, HDMI hotplug event
		* and topology update event. Only one callback client is supported.
		*
		* @param callback Callback object to pass hdmi events to the system. The
		* previously registered callback must be replaced with this one.
		*/
		@callflow(next={"*"})
		@entry
		setCallback(IHdmiCecCallback callback);

		/**
		* Gets the hdmi port information of underlying hardware.
		*
		* @return infos The list of HDMI port information
		*/
		@callflow(next={"*"})
		getPortInfo() generates (vec<HdmiPortInfo> infos);

		/**
		* Sets flags controlling the way HDMI-CEC service works down to HAL
		* implementation. Those flags must be used in case the feature needs update
		* in HAL itself, firmware or microcontroller.
		*
		* @param key The key of the option to be updated with a new value.
		* @param value Value to be set.
		*/
		@callflow(next="*")
		setOption(OptionKey key, bool value);

		/**
		* Passes the updated language information of Android system. Contains
		* three-letter code as defined in ISO/FDIS 639-2. Must be used for HAL to
		* respond to <Get Menu Language> while in standby mode.
		*
		* @param language Three-letter code defined in ISO/FDIS 639-2. Must be
		* lowercase letters. (e.g., eng for English)
		*/
		@callflow(next="*")
		setLanguage(string language);

		/**
		* Configures ARC circuit in the hardware logic to start or stop the
		* feature.
		*
		* @param portId Port id to be configured.
		* @param enable Flag must be either true to start the feature or false to
		* stop it.
		*/
		@callflow(next="*")
		enableAudioReturnChannel(HdmiPortId portId, bool enable);

		/**
		* Gets the connection status of the specified port.
		*
		* It's specified in CEC section 10.8 of the CEC spec 2.0b
		*
		* @param portId Port id to be inspected for the connection status.
		* @return status True if a device is connected, otherwise false.
		*/
		@callflow(next="*")
		isConnected(HdmiPortId portId) generates (bool connected);
		};

tv/cec/2.0/IHdmiCecCallback.hal

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		/*
		* Copyright (C) 2019 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.
		*/

		package android.hardware.tv.cec@2.0;

		interface IHdmiCecCallback {
		/**
		* The callback function that must be called by HAL implementation to notify
		* the system of new CEC message arrival.
		*/
		oneway onCecMessage(CecMessage message);

		/**
		* The callback function that must be called by HAL implementation to notify
		* the system of new hotplug event.
		*/
		oneway onHotplugEvent(HotplugEvent event);

		/**
		* The callback function must be called by HAL implementation to notify the
		* system whenever CEC device information of CEC network change.
		* HAL shall be ready for readDeviceInfo call before invoke this callback.
		* This event is triggered by topology change of whole CEC network. It's
		* different from HotplugEvent which is triggered between devices which are
		* connected directly through HDMI cable.
		*/
		oneway onTopologyEvent(CecTopologyEvent event);
		};

tv/cec/2.0/default/Android.bp

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		cc_library_shared {
		name: "android.hardware.tv.cec@2.0-impl",
		defaults: ["hidl_defaults"],
		vendor: true,
		relative_install_path: "hw",
		srcs: ["HdmiCec.cpp"],

		shared_libs: [
		"libhidlbase",
		"libhidltransport",
		"liblog",
		"libbase",
		"libutils",
		"libhardware",
		"android.hardware.tv.cec@2.0",
		],

		}

		cc_binary {
		name: "android.hardware.tv.cec@2.0-service",
		vintf_fragments: ["android.hardware.tv.cec@2.0-service.xml"],
		defaults: ["hidl_defaults"],
		relative_install_path: "hw",
		vendor: true,
		init_rc: ["android.hardware.tv.cec@2.0-service.rc"],
		srcs: ["service.cpp"],

		shared_libs: [
		"liblog",
		"libcutils",
		"libdl",
		"libbase",
		"libutils",
		"libhardware_legacy",
		"libhardware",
		"libhidlbase",
		"libhidltransport",
		"android.hardware.tv.cec@2.0",
		],

		}

tv/cec/2.0/default/HdmiCec.cpp

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