mirror of
https://github.com/SerenityOS/serenity
synced 2024-07-23 02:55:15 +00:00
c8f27d7cb8
This scan code set is more advanced than the basic scan code set 1, and is required to be supported for some bare metal hardware that might not properly enable the PS2 first port translation in the i8042 controller. LibWeb can now also generate bindings for keyboard events like the Pause key, as well as other function keys (such as Right Alt, etc). The logic for handling scan code sets is implemented by the PS2 keyboard driver and is abstracted from the main HID KeyboardDevice code which only handles "standard" KeyEvent(s).
68 lines
2 KiB
C++
68 lines
2 KiB
C++
/*
|
|
* Copyright (c) 2021-2023, Liav A. <liavalb@hotmail.co.il>
|
|
* Copyright (c) 2021, Edwin Hoksberg <mail@edwinhoksberg.nl>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/CircularQueue.h>
|
|
#include <AK/Types.h>
|
|
#include <Kernel/API/KeyCode.h>
|
|
#include <Kernel/Devices/CharacterDevice.h>
|
|
#include <Kernel/Devices/HID/Device.h>
|
|
#include <Kernel/Devices/HID/ScanCodeEvent.h>
|
|
#include <Kernel/Interrupts/IRQHandler.h>
|
|
#include <Kernel/Security/Random.h>
|
|
|
|
namespace Kernel {
|
|
|
|
class KeyboardDevice : public HIDDevice {
|
|
friend class DeviceManagement;
|
|
|
|
public:
|
|
using Event = KeyEvent;
|
|
|
|
static ErrorOr<NonnullRefPtr<KeyboardDevice>> try_to_initialize();
|
|
|
|
virtual ~KeyboardDevice() override;
|
|
|
|
// ^CharacterDevice
|
|
virtual ErrorOr<size_t> read(OpenFileDescription&, u64, UserOrKernelBuffer&, size_t) override;
|
|
virtual bool can_read(OpenFileDescription const&, u64) const override;
|
|
virtual ErrorOr<size_t> write(OpenFileDescription&, u64, UserOrKernelBuffer const&, size_t) override { return EINVAL; }
|
|
virtual bool can_write(OpenFileDescription const&, u64) const override { return true; }
|
|
|
|
// ^File
|
|
virtual ErrorOr<void> ioctl(OpenFileDescription&, unsigned request, Userspace<void*> arg) override;
|
|
|
|
void update_modifier(u8 modifier, bool state)
|
|
{
|
|
if (state)
|
|
m_modifiers |= modifier;
|
|
else
|
|
m_modifiers &= ~modifier;
|
|
}
|
|
|
|
u8 modifiers() const { return m_modifiers; }
|
|
|
|
void handle_input_event(KeyEvent);
|
|
bool num_lock_on() const { return m_num_lock_on; }
|
|
|
|
protected:
|
|
KeyboardDevice();
|
|
mutable Spinlock<LockRank::None> m_queue_lock {};
|
|
CircularQueue<Event, 16> m_queue;
|
|
// ^CharacterDevice
|
|
virtual StringView class_name() const override { return "KeyboardDevice"sv; }
|
|
|
|
u8 m_modifiers { 0 };
|
|
bool m_caps_lock_to_ctrl_pressed { false };
|
|
bool m_caps_lock_on { false };
|
|
bool m_num_lock_on { false };
|
|
|
|
void key_state_changed(u8 raw, bool pressed);
|
|
};
|
|
}
|