summaryrefslogtreecommitdiffstatshomepage
path: root/src/emu/bus/rs232/ser_mouse.h
blob: fbcbccc6645d6561a9fab2ab874b6aaba6385f51 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
/*****************************************************************************
 *
 * machine/ser_mouse.h
 *
 ****************************************************************************/

#ifndef SER_MOUSE_H_
#define SER_MOUSE_H_

#include "rs232.h"

class serial_mouse_device :
		public device_t,
		public device_rs232_port_interface,
		public device_serial_interface
{
public:
	serial_mouse_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);

	virtual ioport_constructor device_input_ports() const;

protected:
	virtual void device_start();
	virtual void device_reset();
	virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
	virtual void mouse_trans(int dx, int dy, int nb, int mbc) = 0;
	virtual void set_frame() = 0;
	void set_mouse_enable(bool state);
	void queue_data(UINT8 data) {m_queue[m_head] = data; ++m_head %= 256;}
	UINT8 unqueue_data() {UINT8 ret = m_queue[m_tail]; ++m_tail %= 256; return ret;}
	virtual void tra_complete();
	virtual void tra_callback();
private:
	UINT8 m_queue[256];
	UINT8 m_head, m_tail, m_mb;

	emu_timer *m_timer;
	bool m_enabled;

	required_ioport m_x;
	required_ioport m_y;
	required_ioport m_btn;
};

class microsoft_mouse_device : public serial_mouse_device
{
public:
	microsoft_mouse_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
	virtual DECLARE_WRITE_LINE_MEMBER( input_dtr ) { m_dtr = state; check_state(); }
	virtual DECLARE_WRITE_LINE_MEMBER( input_rts ) { m_rts = state; check_state(); m_old_rts = state; }

protected:
	virtual void set_frame() { set_data_frame(1, 7, PARITY_NONE, STOP_BITS_2); }
	virtual void mouse_trans(int dx, int dy, int nb, int mbc);
	virtual void device_reset() {m_old_rts = 0; serial_mouse_device::device_reset();}

private:
	void check_state();
	int m_dtr;
	int m_rts;
	int m_old_rts;
};

extern const device_type MSFT_SERIAL_MOUSE;

class mouse_systems_mouse_device : public serial_mouse_device
{
public:
	mouse_systems_mouse_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
	virtual DECLARE_WRITE_LINE_MEMBER( input_dtr ) { m_dtr = state; check_state(); }
	virtual DECLARE_WRITE_LINE_MEMBER( input_rts ) { m_rts = state; check_state(); }

protected:
	virtual void set_frame() { set_data_frame(1, 8, PARITY_NONE, STOP_BITS_2); }
	virtual void mouse_trans(int dx, int dy, int nb, int mbc);

private:
	void check_state() { set_mouse_enable((m_dtr && m_rts)?true:false); }
	int m_dtr;
	int m_rts;
};

extern const device_type MSYSTEM_SERIAL_MOUSE;

#endif /* SER_MOUSE_H_ */