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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/CircularQueue.h>
#include <Kernel/API/MousePacket.h>
#include <Kernel/Devices/HID/I8042Controller.h>
#include <Kernel/Devices/HID/MouseDevice.h>
#include <Kernel/Interrupts/IRQHandler.h>
#include <Kernel/Random.h>
namespace Kernel {
class PS2MouseDevice : public IRQHandler
, public MouseDevice
, public I8042Device {
friend class DeviceManagement;
public:
static ErrorOr<NonnullRefPtr<PS2MouseDevice>> try_to_initialize(const I8042Controller&);
ErrorOr<void> initialize();
virtual ~PS2MouseDevice() override;
virtual StringView purpose() const override { return class_name(); }
// ^I8042Device
virtual void irq_handle_byte_read(u8 byte) override;
virtual void enable_interrupts() override
{
enable_irq();
}
protected:
explicit PS2MouseDevice(const I8042Controller&);
// ^IRQHandler
virtual bool handle_irq(const RegisterState&) override;
struct RawPacket {
union {
u32 dword;
u8 bytes[4];
};
};
ErrorOr<u8> read_from_device();
ErrorOr<u8> send_command(u8 command);
ErrorOr<u8> send_command(u8 command, u8 data);
MousePacket parse_data_packet(const RawPacket&);
ErrorOr<void> set_sample_rate(u8);
ErrorOr<u8> get_device_id();
u8 m_data_state { 0 };
RawPacket m_data;
bool m_has_wheel { false };
bool m_has_five_buttons { false };
};
}
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