1 // license:BSD-3-Clause
2 // copyright-holders:Patrick Mackinlay
3
4 /*
5 * A high level emulation implementation of the Intergraph InterPro keyboard,
6 * largely copied from the sunkbd and psi hle implementations.
7 *
8 * These keyboards have two primary banks of keys. The lower bank consists of
9 * a total of 67 regular keyboard keyswitches plus a numeric keypad with a
10 * further 18 keys. The upper bank consists of 57 membrane-style programmable
11 * function keys in groups of 9, 36 and 12 from left to right.
12 *
13 * The following describes the key labels and positions according to the
14 * standard US English keyboard layout. At least a German keyboard variant is
15 * known to have existed.
16 *
17 * Upper bank keys indicated here with asterisks are printed in white, as are
18 * all the A*, B* and C* keys; all the others are printed in brown.
19 *
20 * Setup* Home* 2nd A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 2nd
21 * Help Clear F* F*
22 * Screen
23 *
24 * Find Insert Print B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 B15 B16
25 * Here Screen*
26 * Remove
27 *
28 * Select Prev Next C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16
29 * Screen Screen
30 *
31 *
32 * In between the banks on the right hand side, there is a row of LEDs, the
33 * first three are pictures, rather than the descriptions given here).
34 *
35 * Disk Lock ----- L1 L2 L3 L4
36 *
37 * Lower bank keys have up to 3 labels, in shifted and unshifted positions, and
38 * in red on the front face of the key-cap.
39 *
40 * Esc ~ ! @ # $ % ^ & * ( ) _ + Back Delete PF1 PF2 PF3 PF4
41 * ` 1 2 3 4 5 6 7 8 9 0 - = Space ± ÷ × +
42 * Esc Num Lk ScrlLk Sys
43 *
44 * Alt Tab Q W E R T Y U I O P { } 7 8 9 _
45 * Mode [ ]
46 * Home ↑ Pg Up Prt Sc
47 *
48 * Ctrl Caps A S D F G H J K L : " | Return 4 5 6 ,
49 * Lock
50 * ← → −
51 *
52 * Shift > Z X C V B N M , . ? Shift ▲ 1 2 3 =
53 * < ■
54 * End ↓ Pg Dn
55 *
56 * Hold Super- Line Repeat ◄ ■ ► 0 ◦
57 * Screen impose Feed ▼ . Enter
58 * Ins Del +
59 *
60 * Alt Mode and Caps Lock keys have locking switches, capturing the key in the
61 * depressed position, as well as physical leds visible on the keycaps
62 * themselves. The keyboard also has two physical buttons on the back face of
63 * the keyboard, circular button labelled Boot, and a square one labelled Reset.
64 *
65 * The keyboard uses a 1200bps serial protocol to communicate with the host,
66 * with 1 start bit, 8 data bits, 1 stop bit, and even parity. The protocol
67 * as far as is known consists of the following sequences:
68 *
69 * From Host Purpose Expected Response
70 * --------- ------- -----------------
71 * 0x1b 0x42 <xx> probably controls several functions:
72 *
73 * 0x01 sound bell?
74 * 0x04 keyclick on
75 * 0x08 membrane click on
76 * 0x20 bell tone loud/soft/none? (seems only loud/none)
77 *
78 * 0x1b 0x44 reset/diag 0xff <status>, where status bits are set to
79 * indicate diagnostic failure source: 0x8=EPROM
80 * checksum, 0x10=RAM error, 0x20=ROM checksum
81 *
82 * 0x1b 0x55 activate scan code keyup/down mode?
83 *
84 * The keyboard has a keyboard click function, and the LED indicators described
85 * earlier, meaning that there are additional commands to enable and disable
86 * these functions.
87 *
88 * The keyboard has at least two operating modes: a simple ASCII mode which is
89 * active after reset, and a scancode mode generating make/break codes with
90 * full support for all the qualifiers and other non-ASCII keys.
91 *
92 * In ASCII mode, the keyboard transmits ASCII codes corresponding to the key
93 * labels for keys which map to the ASCII character set. Modifiers are applied
94 * by the keyboard itself, and do not generate make/break codes of their own.
95 *
96 * The following non-ASCII sequences are recognised in the system software,
97 * and likely correspond to specific keyboard keys or buttons:
98 *
99 * Sequence Function
100 * -------- --------
101 * <esc> ^L Reboot, possibly maps to Reboot button
102 * <esc> ^M Unknown
103 * <esc> ^N Unknown, but operates as a toggle
104 * <esc> ^U Unknown
105 *
106 * TODO
107 * - unmapped keys
108 * - auto-repeat
109 * - key click and LED commands
110 * - alternative layouts
111 * - scancode make/break mode
112 *
113 */
114 #include "emu.h"
115 #include "hle.h"
116
117 #include "machine/keyboard.ipp"
118 #include "speaker.h"
119
120 #define VERBOSE 0
121 #include "logmacro.h"
122
123 DEFINE_DEVICE_TYPE_NS(INTERPRO_HLE_EN_US_KEYBOARD, bus::interpro::keyboard, hle_en_us_device, "kbd_hle_en_us", "InterPro Keyboard (HLE, US English)")
124
125 namespace bus { namespace interpro { namespace keyboard {
126
127 namespace {
128
129 u8 const TRANSLATION_TABLE[4][5][16] =
130 {
131 // unshifted
132 {
133 { 0x1b, 0x60, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x2d, 0x3d, 0x08, 0x7f }, // 0
134 { 0x00, 0x09, 0x71, 0x77, 0x65, 0x72, 0x74, 0x79, 0x75, 0x69, 0x6f, 0x70, 0x5b, 0x5d, 0x00, 0x00 }, // 1
135 { 0x00, 0x00, 0x61, 0x73, 0x64, 0x66, 0x67, 0x68, 0x6a, 0x6b, 0x6c, 0x3b, 0x27, 0x5c, 0x0d, 0x00 }, // 2
136 { 0x00, 0x3c, 0x7a, 0x78, 0x63, 0x76, 0x62, 0x6e, 0x6d, 0x2c, 0x2e, 0x2f, 0x00, 0x00, 0x00, 0x00 }, // 3
137 { 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // 4
138 },
139 // shifted
140 {
141 { 0x1b, 0x7e, 0x21, 0x40, 0x23, 0x24, 0x25, 0x5e, 0x26, 0x2a, 0x28, 0x29, 0x5f, 0x2b, 0x08, 0x7f }, // 0
142 { 0x00, 0x09, 0x51, 0x57, 0x45, 0x52, 0x54, 0x59, 0x55, 0x49, 0x4f, 0x50, 0x7b, 0x7d, 0x00, 0x00 }, // 1
143 { 0x00, 0x00, 0x41, 0x53, 0x44, 0x46, 0x47, 0x48, 0x4a, 0x4b, 0x4c, 0x3a, 0x22, 0x7c, 0x0d, 0x00 }, // 2
144 { 0x00, 0x3e, 0x5a, 0x58, 0x43, 0x56, 0x42, 0x4e, 0x4d, 0x2c, 0x2e, 0x3f, 0x00, 0x00, 0x00, 0x00 }, // 3
145 { 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // 4
146 },
147 // unshifted-control
148 {
149 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // 0
150 { 0x00, 0x00, 0x11, 0x17, 0x05, 0x12, 0x14, 0x19, 0x15, 0x09, 0x0f, 0x10, 0x1b, 0x1d, 0x00, 0x00 }, // 1
151 { 0x00, 0x00, 0x01, 0x13, 0x04, 0x06, 0x07, 0x08, 0x0a, 0x0b, 0x0c, 0x00, 0x00, 0x1c, 0x00, 0x00 }, // 2
152 { 0x00, 0x00, 0x1a, 0x18, 0x03, 0x16, 0x02, 0x0e, 0x0d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // 3
153 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // 4
154 },
155 // shifted-control
156 {
157 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // 0
158 { 0x00, 0x00, 0x11, 0x17, 0x05, 0x12, 0x14, 0x19, 0x15, 0x09, 0x0f, 0x10, 0x1b, 0x1d, 0x00, 0x00 }, // 1
159 { 0x00, 0x00, 0x01, 0x13, 0x04, 0x06, 0x07, 0x08, 0x0a, 0x0b, 0x0c, 0x00, 0x00, 0x1c, 0x00, 0x00 }, // 2
160 { 0x00, 0x00, 0x1a, 0x18, 0x03, 0x16, 0x02, 0x0e, 0x0d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // 3
161 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // 4
162 }
163 };
164
165 INPUT_PORTS_START(interpro_en_us)
166
167 PORT_START("modifiers")
168 PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) PORT_NAME("Control") PORT_CHAR(UCHAR_MAMEKEY(LCONTROL))
169 PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_NAME("Shift") PORT_CHAR(UCHAR_SHIFT_1)
170 PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_CAPSLOCK) PORT_NAME("Caps Lock") PORT_TOGGLE PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK))
171
172 PORT_START("row_0")
173 PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_ESC) PORT_NAME("Esc") PORT_CHAR(UCHAR_MAMEKEY(ESC))
174 PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('`') PORT_CHAR('~')
175 PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
176 PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@')
177 PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
178 PORT_BIT(0x0020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
179 PORT_BIT(0x0040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
180 PORT_BIT(0x0080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^')
181 PORT_BIT(0x0100, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&')
182 PORT_BIT(0x0200, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*')
183 PORT_BIT(0x0400, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(')
184 PORT_BIT(0x0800, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')')
185 PORT_BIT(0x1000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_')
186 PORT_BIT(0x2000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('+')
187 PORT_BIT(0x4000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSPACE) PORT_NAME("Backspace") PORT_CHAR(8)
188 PORT_BIT(0x8000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL) PORT_NAME("Delete") PORT_CHAR(UCHAR_MAMEKEY(DEL))
189
190 PORT_START("row_1")
191 PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_UNUSED) // "Alt Mode"
192 PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_TAB) PORT_NAME("Tab") PORT_CHAR(9)
193 PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q')
194 PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W')
195 PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E')
196 PORT_BIT(0x0020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R')
197 PORT_BIT(0x0040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T')
198 PORT_BIT(0x0080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y')
199 PORT_BIT(0x0100, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U')
200 PORT_BIT(0x0200, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I')
201 PORT_BIT(0x0400, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O')
202 PORT_BIT(0x0800, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P')
203 PORT_BIT(0x1000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{')
204 PORT_BIT(0x2000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}')
205
206 PORT_START("row_2")
207 PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_UNUSED) // CTRL
208 PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_UNUSED) // LOCK
209 PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A')
210 PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S')
211 PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D')
212 PORT_BIT(0x0020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F')
213 PORT_BIT(0x0040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G')
214 PORT_BIT(0x0080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H')
215 PORT_BIT(0x0100, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J')
216 PORT_BIT(0x0200, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K')
217 PORT_BIT(0x0400, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L')
218 PORT_BIT(0x0800, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':')
219 PORT_BIT(0x1000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\'') PORT_CHAR('"')
220 PORT_BIT(0x2000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_CHAR('|')
221 PORT_BIT(0x4000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_NAME("Return") PORT_CHAR(13)
222
223 PORT_START("row_3")
224 PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_UNUSED) // LSHIFT
225 PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH2) PORT_CHAR('<') PORT_CHAR('>')
226 PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z')
227 PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X')
228 PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C')
229 PORT_BIT(0x0020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V')
230 PORT_BIT(0x0040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
231 PORT_BIT(0x0080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N')
232 PORT_BIT(0x0100, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M')
233 PORT_BIT(0x0200, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',')
234 PORT_BIT(0x0400, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.')
235 PORT_BIT(0x0800, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
236 PORT_BIT(0x1000, IP_ACTIVE_HIGH, IPT_UNUSED) // RSHIFT
237 PORT_BIT(0x2000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_UP) PORT_NAME("Up") PORT_CHAR(UCHAR_MAMEKEY(UP))
238
239 PORT_START("row_4")
240 PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_UNUSED) // "Hold Screen"
241 PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_UNUSED) // "Superimpose"
242 PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_UNUSED) // "Line Feed"
243 PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_NAME("Space") PORT_CHAR(UCHAR_MAMEKEY(SPACE))
244 PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_UNUSED) // "Repeat"
245 PORT_BIT(0x0020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT) PORT_NAME("Left") PORT_CHAR(UCHAR_MAMEKEY(LEFT))
246 PORT_BIT(0x0040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_DOWN) PORT_NAME("Down") PORT_CHAR(UCHAR_MAMEKEY(DOWN))
247 PORT_BIT(0x0080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_RIGHT) PORT_NAME("Right") PORT_CHAR(UCHAR_MAMEKEY(RIGHT))
248
249 INPUT_PORTS_END
250
251 INPUT_PORTS_START(hle_en_us_device)
252 PORT_INCLUDE(interpro_en_us)
253 INPUT_PORTS_END
254
255 } // anonymous namespace
256
hle_device_base(machine_config const & mconfig,device_type type,char const * tag,device_t * owner,u32 clock)257 hle_device_base::hle_device_base(machine_config const &mconfig, device_type type, char const *tag, device_t *owner, u32 clock)
258 : device_t(mconfig, type, tag, owner, clock)
259 , device_buffered_serial_interface(mconfig, *this)
260 , device_interpro_keyboard_port_interface(mconfig, *this)
261 , device_matrix_keyboard_interface(mconfig, *this, "row_0", "row_1", "row_2", "row_3", "row_4")
262 , m_click_timer(nullptr)
263 , m_beeper(*this, "beeper")
264 , m_make_count(0U)
265 , m_rx_state(RX_IDLE)
266 , m_keyclick(0U)
267 , m_beeper_state(0U)
268 {
269 }
270
~hle_device_base()271 hle_device_base::~hle_device_base()
272 {
273 }
274
WRITE_LINE_MEMBER(hle_device_base::input_txd)275 WRITE_LINE_MEMBER(hle_device_base::input_txd)
276 {
277 device_buffered_serial_interface::rx_w(state);
278 }
279
device_add_mconfig(machine_config & config)280 void hle_device_base::device_add_mconfig(machine_config &config)
281 {
282 SPEAKER(config, "bell").front_center();
283 BEEP(config, m_beeper, ATTOSECONDS_TO_HZ(480 * ATTOSECONDS_PER_MICROSECOND)).add_route(ALL_OUTPUTS, "bell", 1.0);
284 }
285
device_start()286 void hle_device_base::device_start()
287 {
288 m_click_timer = timer_alloc(CLICK_TIMER_ID);
289
290 save_item(NAME(m_make_count));
291 save_item(NAME(m_rx_state));
292 save_item(NAME(m_keyclick));
293 save_item(NAME(m_beeper_state));
294 }
295
device_reset()296 void hle_device_base::device_reset()
297 {
298 // initialise state
299 clear_fifo();
300 m_make_count = 0U;
301 m_rx_state = RX_IDLE;
302 m_keyclick = 0U;
303 m_beeper_state = 0x00U;
304
305 // configure device_buffered_serial_interface
306 set_data_frame(START_BIT_COUNT, DATA_BIT_COUNT, PARITY, STOP_BITS);
307 set_rate(BAUD);
308 receive_register_reset();
309 transmit_register_reset();
310
311 // no beep
312 m_click_timer->reset();
313
314 // kick the base
315 reset_key_state();
316 start_processing(attotime::from_hz(1'200));
317 }
318
device_timer(emu_timer & timer,device_timer_id id,int param,void * ptr)319 void hle_device_base::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
320 {
321 switch (id)
322 {
323 case CLICK_TIMER_ID:
324 m_beeper_state &= ~u8(BEEPER_CLICK);
325 m_beeper->set_state(m_beeper_state ? 1 : 0);
326 break;
327
328 default:
329 break;
330 }
331 }
332
tra_callback()333 void hle_device_base::tra_callback()
334 {
335 output_rxd(transmit_register_get_data_bit());
336 }
337
tra_complete()338 void hle_device_base::tra_complete()
339 {
340 if (fifo_full())
341 start_processing(attotime::from_hz(1'200));
342
343 device_buffered_serial_interface::tra_complete();
344 }
345
key_make(u8 row,u8 column)346 void hle_device_base::key_make(u8 row, u8 column)
347 {
348 // we should have stopped processing if we filled the FIFO
349 assert(!fifo_full());
350
351 // send the make code, click if desired
352 transmit_byte(translate(row, column));
353 if (m_keyclick)
354 {
355 m_beeper_state |= u8(BEEPER_CLICK);
356 m_beeper->set_state(m_beeper_state ? 1 : 0);
357 m_click_timer->reset(attotime::from_msec(5));
358 }
359
360 // count keys
361 ++m_make_count;
362 assert(m_make_count);
363 }
364
key_break(u8 row,u8 column)365 void hle_device_base::key_break(u8 row, u8 column)
366 {
367 // we should have stopped processing if we filled the FIFO
368 assert(!fifo_full());
369 assert(m_make_count);
370
371 --m_make_count;
372
373 // check our counting
374 assert(are_all_keys_up() == !bool(m_make_count));
375 }
376
transmit_byte(u8 byte)377 void hle_device_base::transmit_byte(u8 byte)
378 {
379 LOG("transmit_byte 0x%02x\n", byte);
380 device_buffered_serial_interface::transmit_byte(byte);
381 if (fifo_full())
382 stop_processing();
383 }
384
received_byte(u8 byte)385 void hle_device_base::received_byte(u8 byte)
386 {
387 LOG("received_byte 0x%02x\n", byte);
388
389 switch (m_rx_state)
390 {
391 case RX_COMMAND:
392 switch (byte)
393 {
394 case 0x42: // configure flags
395 m_rx_state = RX_FLAGS;
396 break;
397
398 case 0x44: // reset/diagnostic
399 transmit_byte(0xff);
400 transmit_byte(0x00);
401
402 m_rx_state = RX_IDLE;
403 break;
404
405 case 0x55:
406 break;
407 }
408 break;
409
410 case RX_FLAGS:
411 // FIXME: this logic is wrong (should decode the various fields), but
412 // generates bell sounds at the right time for now
413 switch (byte)
414 {
415 case 0x28:
416 LOG("bell on\n");
417 m_beeper_state |= u8(BEEPER_BELL);
418 m_beeper->set_state(m_beeper_state ? 1 : 0);
419 break;
420
421 case 0x29:
422 LOG("bell off\n");
423 m_beeper_state &= ~u8(BEEPER_BELL);
424 m_beeper->set_state(m_beeper_state ? 1 : 0);
425 break;
426
427 default:
428 break;
429 }
430 m_rx_state = RX_IDLE;
431 break;
432
433 case RX_IDLE:
434 if (byte == 0x1b)
435 m_rx_state = RX_COMMAND;
436 break;
437 }
438 }
439
hle_en_us_device(machine_config const & mconfig,char const * tag,device_t * owner,u32 clock)440 hle_en_us_device::hle_en_us_device(machine_config const &mconfig, char const *tag, device_t *owner, u32 clock)
441 : hle_device_base(mconfig, INTERPRO_HLE_EN_US_KEYBOARD, tag, owner, clock),
442 m_modifiers(*this, "modifiers")
443 {
444 }
445
device_input_ports() const446 ioport_constructor hle_en_us_device::device_input_ports() const
447 {
448 return INPUT_PORTS_NAME(hle_en_us_device);
449 }
450
translate(u8 row,u8 column)451 u8 hle_en_us_device::translate(u8 row, u8 column)
452 {
453 u8 const modifiers(m_modifiers->read());
454
455 bool const ctrl(modifiers & 0x01);
456 bool const shift(bool(modifiers & 0x02) || (bool(modifiers & 0x04)));
457 bool const ctrl_shift(ctrl && shift);
458
459 unsigned const map(ctrl_shift ? 3 : ctrl ? 2 : shift ? 1 : 0);
460
461 return TRANSLATION_TABLE[map][row][column];
462 }
463
464 } } } // namespace bus::interpro::keyboard
465