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129 lines
4.2 KiB
129 lines
4.2 KiB
/* |
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* Copyright (C) 2015 The Android Open Source Project |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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#ifndef ANDROID_INPUT_DEVICE_H_ |
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#define ANDROID_INPUT_DEVICE_H_ |
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#include <memory> |
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#include <vector> |
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#include <utils/Timers.h> |
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#include "InputMapper.h" |
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struct input_device_handle; |
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struct input_device_identifier; |
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namespace android { |
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class InputDeviceDefinition; |
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class InputDeviceNode; |
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class InputHostInterface; |
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struct InputEvent; |
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using InputDeviceHandle = struct input_device_handle; |
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using InputDeviceIdentifier = struct input_device_identifier; |
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/** |
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* InputDeviceInterface represents an input device in the HAL. It processes |
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* input events before passing them to the input host. |
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*/ |
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class InputDeviceInterface { |
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public: |
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virtual void processInput(InputEvent& event, nsecs_t currentTime) = 0; |
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virtual uint32_t getInputClasses() = 0; |
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protected: |
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InputDeviceInterface() = default; |
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virtual ~InputDeviceInterface() = default; |
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}; |
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/** |
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* EvdevDevice is an input device backed by a Linux evdev node. |
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*/ |
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class EvdevDevice : public InputDeviceInterface { |
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public: |
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EvdevDevice(InputHostInterface* host, const std::shared_ptr<InputDeviceNode>& node); |
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virtual ~EvdevDevice() override = default; |
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virtual void processInput(InputEvent& event, nsecs_t currentTime) override; |
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virtual uint32_t getInputClasses() override { return mClasses; } |
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private: |
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void createMappers(); |
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void configureDevice(); |
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InputHostInterface* mHost = nullptr; |
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std::shared_ptr<InputDeviceNode> mDeviceNode; |
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InputDeviceIdentifier* mInputId = nullptr; |
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InputDeviceDefinition* mDeviceDefinition = nullptr; |
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InputDeviceHandle* mDeviceHandle = nullptr; |
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std::vector<std::unique_ptr<InputMapper>> mMappers; |
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uint32_t mClasses = 0; |
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int32_t mOverrideSec = 0; |
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int32_t mOverrideUsec = 0; |
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}; |
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/* Input device classes. */ |
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enum { |
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/* The input device is a keyboard or has buttons. */ |
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INPUT_DEVICE_CLASS_KEYBOARD = 0x00000001, |
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/* The input device is an alpha-numeric keyboard (not just a dial pad). */ |
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INPUT_DEVICE_CLASS_ALPHAKEY = 0x00000002, |
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/* The input device is a touchscreen or a touchpad (either single-touch or multi-touch). */ |
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INPUT_DEVICE_CLASS_TOUCH = 0x00000004, |
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/* The input device is a cursor device such as a trackball or mouse. */ |
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INPUT_DEVICE_CLASS_CURSOR = 0x00000008, |
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/* The input device is a multi-touch touchscreen. */ |
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INPUT_DEVICE_CLASS_TOUCH_MT = 0x00000010, |
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/* The input device is a directional pad (implies keyboard, has DPAD keys). */ |
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INPUT_DEVICE_CLASS_DPAD = 0x00000020, |
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/* The input device is a gamepad (implies keyboard, has BUTTON keys). */ |
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INPUT_DEVICE_CLASS_GAMEPAD = 0x00000040, |
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/* The input device has switches. */ |
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INPUT_DEVICE_CLASS_SWITCH = 0x00000080, |
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/* The input device is a joystick (implies gamepad, has joystick absolute axes). */ |
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INPUT_DEVICE_CLASS_JOYSTICK = 0x00000100, |
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/* The input device has a vibrator (supports FF_RUMBLE). */ |
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INPUT_DEVICE_CLASS_VIBRATOR = 0x00000200, |
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/* The input device has a microphone. */ |
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// TODO: remove this and let the host take care of it |
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INPUT_DEVICE_CLASS_MIC = 0x00000400, |
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/* The input device is an external stylus (has data we want to fuse with touch data). */ |
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INPUT_DEVICE_CLASS_EXTERNAL_STYLUS = 0x00000800, |
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/* The input device is virtual (not a real device, not part of UI configuration). */ |
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/* not used - INPUT_DEVICE_CLASS_VIRTUAL = 0x40000000, */ |
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/* The input device is external (not built-in). */ |
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// TODO: remove this and let the host take care of it? |
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INPUT_DEVICE_CLASS_EXTERNAL = 0x80000000, |
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}; |
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} // namespace android |
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#endif // ANDROID_INPUT_DEVICE_H_
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