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
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
/*********************************************************************
bitbngr.h
TRS style "bitbanger" serial port
*********************************************************************/
#ifndef __BITBNGR_H__
#define __BITBNGR_H__
#include "image.h"
enum
{
BITBANGER_PRINTER = 0,
BITBANGER_MODEM,
BITBANGER_MODE_MAX,
BITBANGER_150 = 0,
BITBANGER_300,
BITBANGER_600,
BITBANGER_1200,
BITBANGER_2400,
BITBANGER_4800,
BITBANGER_9600,
BITBANGER_14400,
BITBANGER_28800,
BITBANGER_38400,
BITBANGER_57600,
BITBANGER_115200,
BITBANGER_BAUD_MAX,
BITBANGER_NEG40PERCENT = 0,
BITBANGER_NEG35PERCENT,
BITBANGER_NEG30PERCENT,
BITBANGER_NEG25PERCENT,
BITBANGER_NEG20PERCENT,
BITBANGER_NEG15PERCENT,
BITBANGER_NEG10PERCENT,
BITBANGER_NEG5PERCENT,
BITBANGER_0PERCENT,
BITBANGER_POS5PERCENT,
BITBANGER_POS10PERCENT,
BITBANGER_POS15PERCENT,
BITBANGER_POS20PERCENT,
BITBANGER_POS25PERCENT,
BITBANGER_POS30PERCENT,
BITBANGER_POS35PERCENT,
BITBANGER_POS40PERCENT,
BITBANGER_TUNE_MAX
};
/***************************************************************************
CONSTANTS
***************************************************************************/
DECLARE_LEGACY_IMAGE_DEVICE(BITBANGER, bitbanger);
#define MCFG_BITBANGER_ADD(_tag, _intrf) \
MCFG_DEVICE_ADD(_tag, BITBANGER, 0) \
MCFG_DEVICE_CONFIG(_intrf)
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
typedef struct _bitbanger_config bitbanger_config;
struct _bitbanger_config
{
/* callback to driver */
void (*input_callback)(running_machine &machine, UINT8 bit);
int default_mode; /* emulating a printer or modem */
int default_baud; /* output bits per second */
int default_tune; /* fine tune adjustment to the baud */
};
/***************************************************************************
FUNCTION PROTOTYPES
***************************************************************************/
/* outputs data to a bitbanger port */
void bitbanger_output(device_t *device, int value);
/* ui functions */
const char *bitbanger_mode_string(device_t *device);
const char *bitbanger_baud_string(device_t *device);
const char *bitbanger_tune_string(device_t *device);
bool bitbanger_inc_mode(device_t *device, bool test);
bool bitbanger_dec_mode(device_t *device, bool test);
bool bitbanger_inc_tune(device_t *device, bool test);
bool bitbanger_dec_tune(device_t *device, bool test);
bool bitbanger_inc_baud(device_t *device, bool test);
bool bitbanger_dec_baud(device_t *device, bool test);
#endif /* __BITBNGR_H__ */
|