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Add a simple PS/2 mouse device.
It's not hooked up to anything just yet, but it does read movement deltas.
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4 changed files with 146 additions and 1 deletions
28
Kernel/PS2MouseDevice.h
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28
Kernel/PS2MouseDevice.h
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#pragma once
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#include <VirtualFileSystem/CharacterDevice.h>
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#include "IRQHandler.h"
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class PS2MouseDevice final : public IRQHandler, public CharacterDevice {
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public:
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PS2MouseDevice();
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virtual ~PS2MouseDevice() override;
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private:
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virtual bool has_data_available_for_reading() const override;
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virtual ssize_t read(byte* buffer, size_t buffer_size) override;
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virtual ssize_t write(const byte* buffer, size_t buffer_size) override;
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virtual void handle_irq() override;
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void initialize();
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void prepare_for_input();
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void prepare_for_output();
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void mouse_write(byte);
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byte mouse_read();
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void wait_then_write(byte port, byte data);
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byte wait_then_read(byte port);
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byte m_data_state { 0 };
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signed_byte m_data[3];
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};
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