mirror of
https://github.com/RGBCube/serenity
synced 2025-05-22 19:35:06 +00:00
5f1c98e576
Previously there was a mix of returning plain strings and returning explicit string views using `operator ""sv`. This change switches them all to standardized on `operator ""sv` as it avoids a call to strlen.
64 lines
1.9 KiB
C++
64 lines
1.9 KiB
C++
/*
|
|
* Copyright (c) 2021, 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/DoublyLinkedList.h>
|
|
#include <AK/Types.h>
|
|
#include <Kernel/API/KeyCode.h>
|
|
#include <Kernel/Devices/CharacterDevice.h>
|
|
#include <Kernel/Devices/HID/HIDDevice.h>
|
|
#include <Kernel/Interrupts/IRQHandler.h>
|
|
#include <Kernel/Random.h>
|
|
|
|
namespace Kernel {
|
|
|
|
class KeyboardDevice : public HIDDevice {
|
|
public:
|
|
using Event = KeyEvent;
|
|
|
|
virtual ~KeyboardDevice() override;
|
|
|
|
// ^CharacterDevice
|
|
virtual KResultOr<size_t> read(OpenFileDescription&, u64, UserOrKernelBuffer&, size_t) override;
|
|
virtual bool can_read(const OpenFileDescription&, size_t) const override;
|
|
virtual KResultOr<size_t> write(OpenFileDescription&, u64, const UserOrKernelBuffer&, size_t) override { return EINVAL; }
|
|
virtual bool can_write(const OpenFileDescription&, size_t) const override { return true; }
|
|
|
|
// ^HIDDevice
|
|
virtual Type instrument_type() const override { return Type::Keyboard; }
|
|
|
|
// ^File
|
|
virtual KResult ioctl(OpenFileDescription&, unsigned request, Userspace<void*> arg) override;
|
|
|
|
void update_modifier(u8 modifier, bool state)
|
|
{
|
|
if (state)
|
|
m_modifiers |= modifier;
|
|
else
|
|
m_modifiers &= ~modifier;
|
|
}
|
|
|
|
protected:
|
|
KeyboardDevice();
|
|
mutable Spinlock 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 };
|
|
bool m_has_e0_prefix { false };
|
|
bool m_left_shift_pressed { false };
|
|
bool m_right_shift_pressed { false };
|
|
|
|
void key_state_changed(u8 raw, bool pressed);
|
|
};
|
|
}
|