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
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
|
// license:BSD-3-Clause
// copyright-holders:Vas Crabb
/***************************************************************************
Amiga 1200 Keyboard
391508-01 = Rev 0 is MC68HC05C4AFN
391508-02 = Rev 1 is MC68HC05C12FN
The ROMs from the mask-programmed MPUs used by Commodore are not
dumped. The program here is for the UVEPROM MC68HC705C8A. It will
not work on the mask-programmed MPUs used by Commodore, due to
differences in the onboard watchdog hardware.
If /IRQ is tied low, this program supports a Num Lock mode mapping
the numeric keypad over the main keyboard for compact keyboards that
lack a physical numeric keypad. To enable it, hold Ctrl and press
Caps Lock; to disable it, press Caps Lock. The Caps Lock LED will
be lit and blink off every 22 seconds or so while Num Lock mode is
active. The following keys are remapped while Num Lock is active:
* 04 4 -> 5A Keypad (
* 05 5 -> 5B Keypad )
* 06 6 -> 5C Keypad /
* 07 7 -> 3D Keypad 7
* 08 8 -> 3E Keypad 8
* 09 9 -> 3F Keypad 9
* 0A 0 -> 5D Keypad *
* 16 U -> 2D Keypad 4
* 17 I -> 2E Keypad 5
* 18 O -> 2F Keypad 6
* 19 P -> 4A Keypad -
* 26 J -> 1D Keypad 1
* 27 K -> 1E Keypad 2
* 28 L -> 1F Keypad 3
* 29 ; -> 5E Keypad +
* 37 M -> 0F Keypad 0
* 39 . -> 3C Keypad .
* 44 Return -> 43 Keypad Enter
Switching between full size and compact modes is currently
implemented as a configuration option, but it should be split off
as a separate device without the numeric keypad.
***************************************************************************/
#include "emu.h"
#include "a1200.h"
#include "matrix.h"
#include "cpu/m6805/m68hc05.h"
//#define VERBOSE 1
#include "logmacro.h"
//**************************************************************************
// GLOBAL VARIABLES
//**************************************************************************
DEFINE_DEVICE_TYPE(A1200_KBD, bus::amiga::keyboard::a1200_kbd_device, "a1200kbd_rb", "Amiga 1200 Keyboard Rev B")
namespace bus::amiga::keyboard {
namespace {
INPUT_PORTS_START(a1200_mod)
PORT_START("MOD")
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LWIN) PORT_CHAR(UCHAR_MAMEKEY(LWIN)) PORT_NAME("Left Amiga")
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LALT) PORT_CHAR(UCHAR_MAMEKEY(LALT)) PORT_NAME("Left Alt")
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1) PORT_NAME("Left Shift")
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_MAMEKEY(LCONTROL)) PORT_NAME("Ctrl")
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RWIN) PORT_CHAR(UCHAR_MAMEKEY(RWIN)) PORT_NAME("Right Amiga")
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RALT) PORT_CHAR(UCHAR_SHIFT_2) PORT_NAME("Right Alt")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_MAMEKEY(RSHIFT)) PORT_NAME("Right Shift")
INPUT_PORTS_END
INPUT_PORTS_START(a1200_us_keyboard)
PORT_INCLUDE(matrix_us)
PORT_INCLUDE(a1200_mod)
// FIXME: split compact mode into a separate device without the numeric keypad
PORT_START("IRQ")
PORT_CONFNAME(0x01, 0x01, "Layout") PORT_CHANGED_MEMBER(DEVICE_SELF, FUNC(a1200_kbd_device::layout_changed), 0)
PORT_CONFSETTING(0x01, "Full Size")
PORT_CONFSETTING(0x00, "Compact")
INPUT_PORTS_END
ROM_START(a1200kbd_revB)
ROM_REGION(0x2000, "mpu", 0)
ROM_LOAD("dfa_rev_b_a1200_hc705.bin", 0x0000, 0x2000, CRC(2a77eec4) SHA1(301ec6a69404457d912c89e3fc54095eda9f0e93))
ROM_END
} // anonymous namespace
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
a1200_kbd_device::a1200_kbd_device(machine_config const &mconfig, char const *tag, device_t *owner, uint32_t clock)
: device_t(mconfig, A1200_KBD, tag, owner, clock)
, device_amiga_keyboard_interface(mconfig, *this)
, m_rows(*this, "ROW%u", 0)
, m_mpu(*this, "mpu")
, m_led_kbd_caps(*this, "led_kbd_caps")
, m_row_drive(0xffff)
, m_host_kdat(true)
, m_mpu_kdat(true)
{
}
void a1200_kbd_device::kdat_w(int state)
{
if (bool(state) != m_host_kdat)
{
LOG("host DATA %u -> %u\n", m_host_kdat ? 1 : 0, state ? 1 : 0);
m_host_kdat = bool(state);
if (m_mpu_kdat)
m_mpu->set_input_line(M68HC05_TCAP_LINE, m_host_kdat ? 1 : 0);
}
}
INPUT_CHANGED_MEMBER(a1200_kbd_device::layout_changed)
{
m_mpu->set_input_line(M68HC05_IRQ_LINE, newval ? CLEAR_LINE : ASSERT_LINE);
}
u8 a1200_kbd_device::mpu_portb_r()
{
u8 result(m_host_kdat ? 0xff : 0xfe);
for (unsigned row = 0; m_rows.size() > row; ++row)
{
if (!BIT(m_row_drive, row))
result &= m_rows[row]->read();
}
return result;
}
void a1200_kbd_device::mpu_porta_w(offs_t offset, u8 data, u8 mem_mask)
{
m_row_drive = (m_row_drive & 0xff00) | u16(u8(data | ~mem_mask));
}
void a1200_kbd_device::mpu_portb_w(offs_t offset, u8 data, u8 mem_mask)
{
u8 const kdat(BIT(data, 0) | BIT(~mem_mask, 0));
m_host->kdat_w(kdat ? 1 : 0);
m_host->kclk_w(BIT(data, 1));
if (bool(kdat) != m_mpu_kdat)
{
LOG("keyboard DATA %u -> %u\n", m_mpu_kdat ? 1 : 0, kdat);
m_mpu_kdat = bool(kdat);
if (m_host_kdat)
m_mpu->set_input_line(M68HC05_TCAP_LINE, kdat);
}
}
void a1200_kbd_device::mpu_portc_w(offs_t offset, u8 data, u8 mem_mask)
{
m_row_drive = (m_row_drive & 0x80ff) | (u16(u8(data | ~mem_mask) & 0x7f) << 8);
m_led_kbd_caps = BIT(~data, 7);
}
void a1200_kbd_device::mpu_tcmp(int state)
{
m_host->krst_w(state);
}
void a1200_kbd_device::device_add_mconfig(machine_config &config)
{
m68hc705c8a_device &mpu(M68HC705C8A(config, m_mpu, XTAL(3'000'000)));
mpu.portb_r().set(FUNC(a1200_kbd_device::mpu_portb_r));
mpu.portd_r().set_ioport("MOD");
mpu.porta_w().set(FUNC(a1200_kbd_device::mpu_porta_w));
mpu.portb_w().set(FUNC(a1200_kbd_device::mpu_portb_w));
mpu.portc_w().set(FUNC(a1200_kbd_device::mpu_portc_w));
mpu.tcmp().set(FUNC(a1200_kbd_device::mpu_tcmp));
}
tiny_rom_entry const *a1200_kbd_device::device_rom_region() const
{
return ROM_NAME(a1200kbd_revB);
}
ioport_constructor a1200_kbd_device::device_input_ports() const
{
return INPUT_PORTS_NAME(a1200_us_keyboard);
}
void a1200_kbd_device::device_start()
{
m_led_kbd_caps.resolve();
save_item(NAME(m_row_drive));
save_item(NAME(m_host_kdat));
save_item(NAME(m_mpu_kdat));
m_row_drive = 0xffff;
m_host_kdat = true;
m_mpu_kdat = true;
}
void a1200_kbd_device::device_reset_after_children()
{
m_mpu->set_input_line(M68HC05_IRQ_LINE, BIT(ioport("IRQ")->read(), 0) ? CLEAR_LINE : ASSERT_LINE);
}
} // namespace bus::amiga::keyboard
|