mirror of
https://github.com/SerenityOS/serenity
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fd4e86460b
Get rid of the goofy MouseClient interface and have the GUI event loop just read mouse data from the character device. The previous approach was awful as it was sending us into random GUI code in the mouse interrupt handler.
35 lines
878 B
C++
35 lines
878 B
C++
#pragma once
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#include <VirtualFileSystem/CharacterDevice.h>
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#include "DoubleBuffer.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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static PS2MouseDevice& the();
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// ^CharacterDevice
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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) override;
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virtual ssize_t write(const byte* buffer, size_t) override;
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private:
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// ^IRQHandler
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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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DoubleBuffer m_buffer;
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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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