mirror of
https://github.com/RGBCube/serenity
synced 2025-05-22 19:25:07 +00:00
bb58a4d943
The default template argument is only used in one place, and it looks like it was probably just an oversight. The rest of the Kernel code all uses u8 as the type. So lets make that the default and remove the unused template argument, as there doesn't seem to be a reason to allow the size to be customizable.
116 lines
2.8 KiB
C++
116 lines
2.8 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/RefCounted.h>
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#include <Kernel/Devices/HID/KeyboardDevice.h>
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#include <Kernel/Devices/HID/MouseDevice.h>
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#include <Kernel/Locking/Spinlock.h>
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namespace Kernel {
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#define I8042_BUFFER 0x60
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#define I8042_STATUS 0x64
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#define I8042_ACK 0xFA
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#define I8042_RESEND 0xFE
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#define I8042_BUFFER_FULL 0x01
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#define I8042_WHICH_BUFFER 0x20
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#define I8042_KEYBOARD_BUFFER 0x00
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#define I8042_MOUSE_BUFFER 0x20
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class I8042Controller;
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class I8042Device {
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public:
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virtual ~I8042Device() = default;
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virtual void irq_handle_byte_read(u8 byte) = 0;
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protected:
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explicit I8042Device(const I8042Controller& ps2_controller)
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: m_i8042_controller(ps2_controller)
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{
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}
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NonnullRefPtr<I8042Controller> m_i8042_controller;
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};
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class PS2KeyboardDevice;
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class PS2MouseDevice;
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class I8042Controller : public RefCounted<I8042Controller> {
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friend class PS2KeyboardDevice;
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friend class PS2MouseDevice;
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public:
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static NonnullRefPtr<I8042Controller> initialize();
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void detect_devices();
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bool reset_device(HIDDevice::Type device)
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{
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SpinlockLocker lock(m_lock);
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return do_reset_device(device);
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}
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u8 send_command(HIDDevice::Type device, u8 command)
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{
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SpinlockLocker lock(m_lock);
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return do_send_command(device, command);
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}
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u8 send_command(HIDDevice::Type device, u8 command, u8 data)
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{
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SpinlockLocker lock(m_lock);
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return do_send_command(device, command, data);
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}
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u8 read_from_device(HIDDevice::Type device)
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{
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SpinlockLocker lock(m_lock);
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return do_read_from_device(device);
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}
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void wait_then_write(u8 port, u8 data)
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{
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SpinlockLocker lock(m_lock);
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do_wait_then_write(port, data);
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}
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u8 wait_then_read(u8 port)
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{
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SpinlockLocker lock(m_lock);
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return do_wait_then_read(port);
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}
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void prepare_for_output();
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void prepare_for_input(HIDDevice::Type);
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bool irq_process_input_buffer(HIDDevice::Type);
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RefPtr<MouseDevice> mouse() const;
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RefPtr<KeyboardDevice> keyboard() const;
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private:
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I8042Controller();
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void do_drain();
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bool do_reset_device(HIDDevice::Type);
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u8 do_send_command(HIDDevice::Type type, u8 data);
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u8 do_send_command(HIDDevice::Type device, u8 command, u8 data);
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u8 do_write_to_device(HIDDevice::Type device, u8 data);
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u8 do_read_from_device(HIDDevice::Type device);
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void do_wait_then_write(u8 port, u8 data);
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u8 do_wait_then_read(u8 port);
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Spinlock m_lock;
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bool m_first_port_available { false };
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bool m_second_port_available { false };
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bool m_is_dual_channel { false };
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RefPtr<MouseDevice> m_mouse_device;
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RefPtr<KeyboardDevice> m_keyboard_device;
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};
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}
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