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
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
// license:GPL-2.0+
// copyright-holders:Dirk Best
/***************************************************************************
EACA Colour Genie Printer Interface EG2012
***************************************************************************/
#include "emu.h"
#include "printer.h"
//**************************************************************************
// CONSTANTS/MACROS
//**************************************************************************
#define VERBOSE 0
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
DEFINE_DEVICE_TYPE(CGENIE_PRINTER, cgenie_printer_device, "cgenie_printer", "Printer Interface EG2012")
//-------------------------------------------------
// device_add_mconfig - add device configuration
//-------------------------------------------------
void cgenie_printer_device::device_add_mconfig(machine_config &config)
{
CENTRONICS(config, m_centronics, centronics_devices, "printer");
m_centronics->busy_handler().set(FUNC(cgenie_printer_device::busy_w));
m_centronics->perror_handler().set(FUNC(cgenie_printer_device::perror_w));
m_centronics->select_handler().set(FUNC(cgenie_printer_device::select_w));
m_centronics->fault_handler().set(FUNC(cgenie_printer_device::fault_w));
OUTPUT_LATCH(config, m_latch);
m_centronics->set_output_latch(*m_latch);
}
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// cgenie_printer_device - constructor
//-------------------------------------------------
cgenie_printer_device::cgenie_printer_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
device_t(mconfig, CGENIE_PRINTER, tag, owner, clock),
device_cg_parallel_interface(mconfig, *this),
m_centronics(*this, "centronics"),
m_latch(*this, "latch"),
m_centronics_busy(0),
m_centronics_out_of_paper(0),
m_centronics_unit_sel(1),
m_centronics_ready(1)
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void cgenie_printer_device::device_start()
{
}
//-------------------------------------------------
// device_reset - device-specific reset
//-------------------------------------------------
void cgenie_printer_device::device_reset()
{
}
//**************************************************************************
// IMPLEMENTATION
//**************************************************************************
WRITE_LINE_MEMBER( cgenie_printer_device::busy_w )
{
m_centronics_busy = state;
}
WRITE_LINE_MEMBER( cgenie_printer_device::perror_w )
{
m_centronics_out_of_paper = state;
}
WRITE_LINE_MEMBER( cgenie_printer_device::select_w )
{
m_centronics_unit_sel = state;
}
WRITE_LINE_MEMBER( cgenie_printer_device::fault_w )
{
m_centronics_ready = state;
}
void cgenie_printer_device::pa_w(uint8_t data)
{
if (VERBOSE)
logerror("%s: pa_w %02x\n", tag(), data);
m_latch->write(data);
}
uint8_t cgenie_printer_device::pb_r()
{
uint8_t data = 0x0f;
data |= m_centronics_ready << 4;
data |= m_centronics_unit_sel << 5;
data |= m_centronics_out_of_paper << 6;
data |= m_centronics_busy << 7;
return data;
}
void cgenie_printer_device::pb_w(uint8_t data)
{
if (VERBOSE)
logerror("%s: pa_w %02x\n", tag(), data);
m_centronics->write_strobe(BIT(data, 0));
}
|