#pragma once #include #include "IRQHandler.h" class MouseClient; class PS2MouseDevice final : public IRQHandler, public CharacterDevice { public: PS2MouseDevice(); virtual ~PS2MouseDevice() override; static PS2MouseDevice& the(); void set_client(MouseClient* client) { m_client = client; } private: virtual bool has_data_available_for_reading() const override; virtual ssize_t read(byte* buffer, size_t buffer_size) override; virtual ssize_t write(const byte* buffer, size_t buffer_size) override; virtual void handle_irq() override; void initialize(); void prepare_for_input(); void prepare_for_output(); void mouse_write(byte); byte mouse_read(); void wait_then_write(byte port, byte data); byte wait_then_read(byte port); MouseClient* m_client { nullptr }; byte m_data_state { 0 }; signed_byte m_data[3]; }; class MouseClient { public: virtual ~MouseClient(); virtual void did_receive_mouse_data(int dx, int dy, bool left_button, bool right_button) = 0; };