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Kernel: Detect 5-button PS/2 mouse if present :^)

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The detection works very similarly to how we detect a mouse wheel, just
another magical sequence of "set sample rate" requests to the mouse
followed by an ID check.
This commit is contained in:
Andreas Kling 2020-05-02 22:06:17 +02:00
parent c00ff4ba62
commit c5882d3a18
3 changed files with 47 additions and 19 deletions
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3
Kernel/Devices/PS2MouseDevice.h
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@ -68,12 +68,15 @@ private:
u8 wait_then_read(u8 port);
void parse_data_packet();
void expect_ack();
void set_sample_rate(u8);
u8 get_device_id();
bool m_device_present { false };
CircularQueue<MousePacket, 100> m_queue;
u8 m_data_state { 0 };
u8 m_data[4];
bool m_has_wheel { false };
bool m_has_five_buttons { false };
};
}