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tv.input: add HIDL definition for TV Input HAL

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Note: Capturing and buffer producer paths have been removed since
there is no use case.

Test: make
Bug: 32096101
Change-Id: Ia00643ee07aadd15b00075f24711e2eaab1ae87d
This commit is contained in:
Dongwon Kang 2016-10-12 17:06:25 -07:00
parent af63d7cb95
commit 0fa472ff4b
5 changed files with 287 additions and 0 deletions
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1
Android.bp
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@ -41,6 +41,7 @@ subdirs = [
"tests/pointer/1.0/default/lib",
"thermal/1.0",
"thermal/1.0/default",
"tv/input/1.0",
"vehicle/2.0",
"vibrator/1.0",
"vibrator/1.0/default",

55
tv/input/1.0/Android.bp Normal file
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@ -0,0 +1,55 @@
// This file is autogenerated by hidl-gen. Do not edit manually.
genrule {
name: "android.hardware.tv.input@1.0_genc++",
tool: "hidl-gen",
cmd: "$tool -o $genDir -Lc++ -randroid.hardware:hardware/interfaces android.hardware.tv.input@1.0",
srcs: [
"types.hal",
"ITvInput.hal",
"ITvInputCallback.hal",
],
out: [
"android/hardware/tv/input/1.0/types.cpp",
"android/hardware/tv/input/1.0/TvInputAll.cpp",
"android/hardware/tv/input/1.0/TvInputCallbackAll.cpp",
],
}
genrule {
name: "android.hardware.tv.input@1.0_genc++_headers",
tool: "hidl-gen",
cmd: "$tool -o $genDir -Lc++ -randroid.hardware:hardware/interfaces android.hardware.tv.input@1.0",
srcs: [
"types.hal",
"ITvInput.hal",
"ITvInputCallback.hal",
],
out: [
"android/hardware/tv/input/1.0/types.h",
"android/hardware/tv/input/1.0/ITvInput.h",
"android/hardware/tv/input/1.0/IHwTvInput.h",
"android/hardware/tv/input/1.0/BnTvInput.h",
"android/hardware/tv/input/1.0/BpTvInput.h",
"android/hardware/tv/input/1.0/BsTvInput.h",
"android/hardware/tv/input/1.0/ITvInputCallback.h",
"android/hardware/tv/input/1.0/IHwTvInputCallback.h",
"android/hardware/tv/input/1.0/BnTvInputCallback.h",
"android/hardware/tv/input/1.0/BpTvInputCallback.h",
"android/hardware/tv/input/1.0/BsTvInputCallback.h",
],
}
cc_library_shared {
name: "android.hardware.tv.input@1.0",
generated_sources: ["android.hardware.tv.input@1.0_genc++"],
generated_headers: ["android.hardware.tv.input@1.0_genc++_headers"],
export_generated_headers: ["android.hardware.tv.input@1.0_genc++_headers"],
shared_libs: [
"libhidl",
"libhwbinder",
"libutils",
"libcutils",
"android.hardware.audio.common@2.0",
],
}

79
tv/input/1.0/ITvInput.hal Normal file
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@ -0,0 +1,79 @@
/*
* 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.
*/
package android.hardware.tv.input@1.0;
import ITvInputCallback;
interface ITvInput {
/*
* Sets a callback for events.
*
* Note that initially no device is available in the client side, so the
* implementation must notify all the currently available devices including
* static devices via callback once callback is set.
*
* @param callback Callback object to pass events.
*/
@entry
@exit
@callflow(next={"getStreamConfigurations"})
setCallback(ITvInputCallback callback);
/*
* Gets stream configurations for a specific device.
*
* The configs object is valid only until the next
* STREAM_CONFIGURATIONS_CHANGED event.
*
* @param deviceId Device ID for the configurations.
* @return result OK upon success. Otherwise,
* INVALID_ARGUMENTS if the given device ID is not valid.
* @return configurations An array of available configurations.
*/
@callflow(next={"openStream", "getStreamConfigurations", "closeStream"})
getStreamConfigurations(int32_t deviceId)
generates (Result result, vec<TvStreamConfig> configurations);
/*
* Opens a specific stream in a device.
*
* @param deviceId Device ID for the steam to open.
* @param streamId Steam ID for the steam to open. Must be one of the
* stream IDs returned from getStreamConfigurations().
* @return result OK upon success. Otherwise,
* INVALID_ARGUMENTS if any of given IDs are not valid;
* INVALID_STATE if the stream with the given ID is already open;
* NO_RESOURCE if the client must close other streams to open the
* stream.
* @return sidebandStream handle for sideband stream.
*/
@callflow(next={"closeStream", "getStreamConfigurations", "openStream"})
openStream(int32_t deviceId, int32_t streamId)
generates (Result result, handle sidebandStream);
/*
* Closes a specific stream in a device.
*
* @param deviceId Device ID for the steam to open.
* @param streamId Steam ID for the steam to open.
* @return result OK upon success. Otherwise,
* INVALID_ARGUMENTS if any of given IDs are not valid;
* INVALID_STATE if the stream with the given ID is not open.
*/
@callflow(next={"getStreamConfigurations", "openStream", "closeStream"})
closeStream(int32_t deviceId, int32_t streamId) generates (Result result);
};

27
tv/input/1.0/ITvInputCallback.hal Normal file
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@ -0,0 +1,27 @@
/*
* 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.
*/
package android.hardware.tv.input@1.0;
interface ITvInputCallback {
/*
* Notifies the client that an event has occured. For possible event types,
* check TvInputEventType.
*
* @param event Event passed to the client.
    */
notify(TvInputEvent event);
};

125
tv/input/1.0/types.hal Normal file
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@ -0,0 +1,125 @@
/*
* 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.
*/
package android.hardware.tv.input@1.0;
import android.hardware.audio.common@2.0;
enum Result {
OK,
UNKNOWN,
NO_RESOURCE,
INVALID_ARGUMENTS,
INVALID_STATE,
};
/* Type of physical TV input. */
enum TvInputType {
OTHER = 1, // Generic hardware.
TUNER = 2, // Tuner. e.g. built-in terrestrial tuner
COMPOSITE = 3,
SVIDEO = 4,
SCART = 5,
COMPONENT = 6,
VGA = 7,
DVI = 8,
HDMI = 9, // Physical HDMI port. e.g. HDMI 1
DISPLAY_PORT = 10,
};
struct TvInputDeviceInfo {
int32_t deviceId;
TvInputType type;
uint32_t portId; // HDMI port ID number. e.g. 2 for HDMI 2
AudioDevice audioType; // Audio device type. e.g AudioDevice::IN_HDMI
uint8_t[32] audioAddress; // Audio device address. "" if N/A. If the text
// length is less than 32, the remaining part
// must be filled with 0s.
};
enum TvInputEventType {
/*
* Hardware notifies the framework that a device is available.
*
* Note that DEVICE_AVAILABLE and DEVICE_UNAVAILABLE events do not represent
* hotplug events (i.e. plugging cable into or out of the physical port).
* These events notify the framework whether the port is available or not.
* For a concrete example, when a user plugs in or pulls out the HDMI cable
* from a HDMI port, it does not generate DEVICE_AVAILABLE and/or
* DEVICE_UNAVAILABLE events. However, if a user inserts a pluggable USB
* tuner into the Android device, it must generate a DEVICE_AVAILABLE event
* and when the port is removed, it must generate a DEVICE_UNAVAILABLE
* event.
*
* For hotplug events, please see STREAM_CONFIGURATION_CHANGED for more
* details.
*
* HAL implementation must register devices by using this event when the
* device boots up. The framework must recognize device reported via this
* event only.
*/
DEVICE_AVAILABLE = 1,
/*
* Hardware notifies the framework that a device is unavailable.
*
* HAL implementation must generate this event when a device registered
* by DEVICE_AVAILABLE is no longer available. For example,
* the event can indicate that a USB tuner is plugged out from the Android
* device.
*
* Note that this event is not for indicating cable plugged out of the port;
* for that purpose, the implementation must use
* STREAM_CONFIGURATION_CHANGED event. This event represents the port itself
* being no longer available.
*/
DEVICE_UNAVAILABLE = 2,
/*
* Stream configurations are changed. Client must regard all open streams
* at the specific device are closed, and must call
* getStreamConfigurations() again, opening some of them if necessary.
*
* HAL implementation must generate this event when the available stream
* configurations change for any reason. A typical use case of this event
* is to notify the framework that the input signal has changed resolution,
* or that the cable is plugged out so that the number of available streams
* is 0.
*
* The implementation must use this event to indicate hotplug status of the
* port. the framework regards input devices with no available streams as
* disconnected, so the implementation can generate this event with no
* available streams to indicate that this device is disconnected, and vice
* versa.
*/
STREAM_CONFIGURATIONS_CHANGED = 3,
};
struct TvInputEvent {
TvInputEventType type;
/*
* DEVICE_AVAILABLE: all fields are relevant.
* DEVICE_UNAVAILABLE: only deviceId is relevant.
* STREAM_CONFIGURATIONS_CHANGED: only deviceId is relevant.
*/
TvInputDeviceInfo deviceInfo;
};
struct TvStreamConfig {
int32_t streamId;
uint32_t maxVideoWidth; // Max width of the stream.
uint32_t maxVideoHeight; // Max height of the stream.
};