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
|
// license:BSD-3-Clause
// copyright-holders:Vas Crabb
#include "teeconn.h"
device_type const TI8X_TEE_CONNECTOR = device_creator<bus::ti8x::tee_connector_device>;
namespace bus { namespace ti8x {
namespace {
MACHINE_CONFIG_FRAGMENT(tee_connector)
MCFG_TI8X_LINK_PORT_ADD("a", default_ti8x_link_devices, nullptr)
MCFG_TI8X_LINK_TIP_HANDLER(WRITELINE(tee_connector_device, tip_a_w))
MCFG_TI8X_LINK_RING_HANDLER(WRITELINE(tee_connector_device, ring_a_w))
MCFG_TI8X_LINK_PORT_ADD("b", default_ti8x_link_devices, nullptr)
MCFG_TI8X_LINK_TIP_HANDLER(WRITELINE(tee_connector_device, tip_b_w))
MCFG_TI8X_LINK_RING_HANDLER(WRITELINE(tee_connector_device, ring_b_w))
MACHINE_CONFIG_END
} // anonymous namespace
tee_connector_device::tee_connector_device(
machine_config const &mconfig,
char const *tag,
device_t *owner,
uint32_t clock)
: device_t(mconfig, TI8X_TEE_CONNECTOR, "T-connector", tag, owner, clock, "ti8xtconn", __FILE__)
, device_ti8x_link_port_interface(mconfig, *this)
, m_port_a(*this, "a")
, m_port_b(*this, "b")
, m_tip_host(true)
, m_tip_a(true)
, m_tip_b(true)
, m_ring_host(true)
, m_ring_a(true)
, m_ring_b(true)
{
}
WRITE_LINE_MEMBER(tee_connector_device::tip_a_w)
{
m_tip_a = bool(state);
output_tip((m_tip_a && m_tip_b) ? 1 : 0);
m_port_b->tip_w((m_tip_host && m_tip_a) ? 1 : 0);
}
WRITE_LINE_MEMBER(tee_connector_device::ring_a_w)
{
m_ring_a = bool(state);
output_ring((m_ring_a && m_ring_b) ? 1 : 0);
m_port_b->ring_w((m_ring_host && m_ring_a) ? 1 : 0);
}
WRITE_LINE_MEMBER(tee_connector_device::tip_b_w)
{
m_tip_b = bool(state);
output_tip((m_tip_a && m_tip_b) ? 1 : 0);
m_port_a->tip_w((m_tip_host && m_tip_b) ? 1 : 0);
}
WRITE_LINE_MEMBER(tee_connector_device::ring_b_w)
{
m_ring_b = bool(state);
output_ring((m_ring_a && m_ring_b) ? 1 : 0);
m_port_a->ring_w((m_ring_host && m_ring_b) ? 1 : 0);
}
machine_config_constructor tee_connector_device::device_mconfig_additions() const
{
return MACHINE_CONFIG_NAME(tee_connector);
}
void tee_connector_device::device_start()
{
save_item(NAME(m_tip_host));
save_item(NAME(m_tip_a));
save_item(NAME(m_tip_b));
save_item(NAME(m_ring_host));
save_item(NAME(m_ring_a));
save_item(NAME(m_ring_b));
m_tip_host = m_tip_a = m_tip_b = true;
m_ring_host = m_ring_a = m_ring_b = true;
}
WRITE_LINE_MEMBER(tee_connector_device::input_tip)
{
m_tip_host = bool(state);
m_port_a->tip_w((m_tip_host && m_tip_b) ? 1 : 0);
m_port_b->tip_w((m_tip_host && m_tip_a) ? 1 : 0);
}
WRITE_LINE_MEMBER(tee_connector_device::input_ring)
{
m_ring_host = bool(state);
m_port_a->ring_w((m_ring_host && m_ring_b) ? 1 : 0);
m_port_b->ring_w((m_ring_host && m_ring_a) ? 1 : 0);
}
} } // namespace bus::ti8x
|