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path: root/drivers/input/joystick/db9.c
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Diffstat (limited to 'drivers/input/joystick/db9.c')
-rw-r--r--drivers/input/joystick/db9.c647
1 files changed, 647 insertions, 0 deletions
diff --git a/drivers/input/joystick/db9.c b/drivers/input/joystick/db9.c
new file mode 100644
index 000000000000..cfdd3acf06a1
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+++ b/drivers/input/joystick/db9.c
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1/*
2 * $Id: db9.c,v 1.13 2002/04/07 20:13:37 vojtech Exp $
3 *
4 * Copyright (c) 1999-2001 Vojtech Pavlik
5 *
6 * Based on the work of:
7 * Andree Borrmann Mats Sjövall
8 */
9
10/*
11 * Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver for Linux
12 */
13
14/*
15 * This program is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License as published by
17 * the Free Software Foundation; either version 2 of the License, or
18 * (at your option) any later version.
19 *
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
24 *
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, write to the Free Software
27 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
28 *
29 * Should you need to contact me, the author, you can do so either by
30 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
31 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
32 */
33
34#include <linux/kernel.h>
35#include <linux/module.h>
36#include <linux/moduleparam.h>
37#include <linux/delay.h>
38#include <linux/init.h>
39#include <linux/parport.h>
40#include <linux/input.h>
41
42MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
43MODULE_DESCRIPTION("Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver");
44MODULE_LICENSE("GPL");
45
46static int db9[] __initdata = { -1, 0 };
47static int db9_nargs __initdata = 0;
48module_param_array_named(dev, db9, int, &db9_nargs, 0);
49MODULE_PARM_DESC(dev, "Describes first attached device (<parport#>,<type>)");
50
51static int db9_2[] __initdata = { -1, 0 };
52static int db9_nargs_2 __initdata = 0;
53module_param_array_named(dev2, db9_2, int, &db9_nargs_2, 0);
54MODULE_PARM_DESC(dev2, "Describes second attached device (<parport#>,<type>)");
55
56static int db9_3[] __initdata = { -1, 0 };
57static int db9_nargs_3 __initdata = 0;
58module_param_array_named(dev3, db9_3, int, &db9_nargs_3, 0);
59MODULE_PARM_DESC(dev3, "Describes third attached device (<parport#>,<type>)");
60
61__obsolete_setup("db9=");
62__obsolete_setup("db9_2=");
63__obsolete_setup("db9_3=");
64
65#define DB9_MULTI_STICK 0x01
66#define DB9_MULTI2_STICK 0x02
67#define DB9_GENESIS_PAD 0x03
68#define DB9_GENESIS5_PAD 0x05
69#define DB9_GENESIS6_PAD 0x06
70#define DB9_SATURN_PAD 0x07
71#define DB9_MULTI_0802 0x08
72#define DB9_MULTI_0802_2 0x09
73#define DB9_CD32_PAD 0x0A
74#define DB9_SATURN_DPP 0x0B
75#define DB9_SATURN_DPP_2 0x0C
76#define DB9_MAX_PAD 0x0D
77
78#define DB9_UP 0x01
79#define DB9_DOWN 0x02
80#define DB9_LEFT 0x04
81#define DB9_RIGHT 0x08
82#define DB9_FIRE1 0x10
83#define DB9_FIRE2 0x20
84#define DB9_FIRE3 0x40
85#define DB9_FIRE4 0x80
86
87#define DB9_NORMAL 0x0a
88#define DB9_NOSELECT 0x08
89
90#define DB9_MAX_DEVICES 2
91
92#define DB9_GENESIS6_DELAY 14
93#define DB9_REFRESH_TIME HZ/100
94
95struct db9 {
96 struct input_dev dev[DB9_MAX_DEVICES];
97 struct timer_list timer;
98 struct pardevice *pd;
99 int mode;
100 int used;
101 char phys[2][32];
102};
103
104static struct db9 *db9_base[3];
105
106static short db9_multi_btn[] = { BTN_TRIGGER, BTN_THUMB };
107static short db9_genesis_btn[] = { BTN_START, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_MODE };
108static short db9_cd32_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START };
109
110static char db9_buttons[DB9_MAX_PAD] = { 0, 1, 2, 4, 0, 6, 8, 9, 1, 1, 7, 9, 9 };
111static short *db9_btn[DB9_MAX_PAD] = { NULL, db9_multi_btn, db9_multi_btn, db9_genesis_btn, NULL, db9_genesis_btn,
112 db9_genesis_btn, db9_cd32_btn, db9_multi_btn, db9_multi_btn, db9_cd32_btn,
113 db9_cd32_btn, db9_cd32_btn };
114static char *db9_name[DB9_MAX_PAD] = { NULL, "Multisystem joystick", "Multisystem joystick (2 fire)", "Genesis pad",
115 NULL, "Genesis 5 pad", "Genesis 6 pad", "Saturn pad", "Multisystem (0.8.0.2) joystick",
116 "Multisystem (0.8.0.2-dual) joystick", "Amiga CD-32 pad", "Saturn dpp", "Saturn dpp dual" };
117
118static const int db9_max_pads[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 6, 1, 2, 1, 6, 12 };
119static const int db9_num_axis[DB9_MAX_PAD] = { 0, 2, 2, 2, 0, 2, 2, 7, 2, 2, 2 ,7, 7 };
120static const short db9_abs[] = { ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_RZ, ABS_Z, ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y };
121static const int db9_bidirectional[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 0 };
122static const int db9_reverse[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0 };
123
124/*
125 * Saturn controllers
126 */
127#define DB9_SATURN_DELAY 300
128static const int db9_saturn_byte[] = { 1, 1, 1, 2, 2, 2, 2, 2, 1 };
129static const unsigned char db9_saturn_mask[] = { 0x04, 0x01, 0x02, 0x40, 0x20, 0x10, 0x08, 0x80, 0x08 };
130
131/*
132 * db9_saturn_write_sub() writes 2 bit data.
133 */
134static void db9_saturn_write_sub(struct parport *port, int type, unsigned char data, int powered, int pwr_sub)
135{
136 unsigned char c;
137
138 switch (type) {
139 case 1: /* DPP1 */
140 c = 0x80 | 0x30 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | data;
141 parport_write_data(port, c);
142 break;
143 case 2: /* DPP2 */
144 c = 0x40 | data << 4 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | 0x03;
145 parport_write_data(port, c);
146 break;
147 case 0: /* DB9 */
148 c = ((((data & 2) ? 2 : 0) | ((data & 1) ? 4 : 0)) ^ 0x02) | !powered;
149 parport_write_control(port, c);
150 break;
151 }
152}
153
154/*
155 * gc_saturn_read_sub() reads 4 bit data.
156 */
157static unsigned char db9_saturn_read_sub(struct parport *port, int type)
158{
159 unsigned char data;
160
161 if (type) {
162 /* DPP */
163 data = parport_read_status(port) ^ 0x80;
164 return (data & 0x80 ? 1 : 0) | (data & 0x40 ? 2 : 0)
165 | (data & 0x20 ? 4 : 0) | (data & 0x10 ? 8 : 0);
166 } else {
167 /* DB9 */
168 data = parport_read_data(port) & 0x0f;
169 return (data & 0x8 ? 1 : 0) | (data & 0x4 ? 2 : 0)
170 | (data & 0x2 ? 4 : 0) | (data & 0x1 ? 8 : 0);
171 }
172}
173
174/*
175 * db9_saturn_read_analog() sends clock and reads 8 bit data.
176 */
177static unsigned char db9_saturn_read_analog(struct parport *port, int type, int powered)
178{
179 unsigned char data;
180
181 db9_saturn_write_sub(port, type, 0, powered, 0);
182 udelay(DB9_SATURN_DELAY);
183 data = db9_saturn_read_sub(port, type) << 4;
184 db9_saturn_write_sub(port, type, 2, powered, 0);
185 udelay(DB9_SATURN_DELAY);
186 data |= db9_saturn_read_sub(port, type);
187 return data;
188}
189
190/*
191 * db9_saturn_read_packet() reads whole saturn packet at connector
192 * and returns device identifier code.
193 */
194static unsigned char db9_saturn_read_packet(struct parport *port, unsigned char *data, int type, int powered)
195{
196 int i, j;
197 unsigned char tmp;
198
199 db9_saturn_write_sub(port, type, 3, powered, 0);
200 data[0] = db9_saturn_read_sub(port, type);
201 switch (data[0] & 0x0f) {
202 case 0xf:
203 /* 1111 no pad */
204 return data[0] = 0xff;
205 case 0x4: case 0x4 | 0x8:
206 /* ?100 : digital controller */
207 db9_saturn_write_sub(port, type, 0, powered, 1);
208 data[2] = db9_saturn_read_sub(port, type) << 4;
209 db9_saturn_write_sub(port, type, 2, powered, 1);
210 data[1] = db9_saturn_read_sub(port, type) << 4;
211 db9_saturn_write_sub(port, type, 1, powered, 1);
212 data[1] |= db9_saturn_read_sub(port, type);
213 db9_saturn_write_sub(port, type, 3, powered, 1);
214 /* data[2] |= db9_saturn_read_sub(port, type); */
215 data[2] |= data[0];
216 return data[0] = 0x02;
217 case 0x1:
218 /* 0001 : analog controller or multitap */
219 db9_saturn_write_sub(port, type, 2, powered, 0);
220 udelay(DB9_SATURN_DELAY);
221 data[0] = db9_saturn_read_analog(port, type, powered);
222 if (data[0] != 0x41) {
223 /* read analog controller */
224 for (i = 0; i < (data[0] & 0x0f); i++)
225 data[i + 1] = db9_saturn_read_analog(port, type, powered);
226 db9_saturn_write_sub(port, type, 3, powered, 0);
227 return data[0];
228 } else {
229 /* read multitap */
230 if (db9_saturn_read_analog(port, type, powered) != 0x60)
231 return data[0] = 0xff;
232 for (i = 0; i < 60; i += 10) {
233 data[i] = db9_saturn_read_analog(port, type, powered);
234 if (data[i] != 0xff)
235 /* read each pad */
236 for (j = 0; j < (data[i] & 0x0f); j++)
237 data[i + j + 1] = db9_saturn_read_analog(port, type, powered);
238 }
239 db9_saturn_write_sub(port, type, 3, powered, 0);
240 return 0x41;
241 }
242 case 0x0:
243 /* 0000 : mouse */
244 db9_saturn_write_sub(port, type, 2, powered, 0);
245 udelay(DB9_SATURN_DELAY);
246 tmp = db9_saturn_read_analog(port, type, powered);
247 if (tmp == 0xff) {
248 for (i = 0; i < 3; i++)
249 data[i + 1] = db9_saturn_read_analog(port, type, powered);
250 db9_saturn_write_sub(port, type, 3, powered, 0);
251 return data[0] = 0xe3;
252 }
253 default:
254 return data[0];
255 }
256}
257
258/*
259 * db9_saturn_report() analyzes packet and reports.
260 */
261static int db9_saturn_report(unsigned char id, unsigned char data[60], struct input_dev *dev, int n, int max_pads)
262{
263 int tmp, i, j;
264
265 tmp = (id == 0x41) ? 60 : 10;
266 for (j = 0; (j < tmp) && (n < max_pads); j += 10, n++) {
267 switch (data[j]) {
268 case 0x16: /* multi controller (analog 4 axis) */
269 input_report_abs(dev + n, db9_abs[5], data[j + 6]);
270 case 0x15: /* mission stick (analog 3 axis) */
271 input_report_abs(dev + n, db9_abs[3], data[j + 4]);
272 input_report_abs(dev + n, db9_abs[4], data[j + 5]);
273 case 0x13: /* racing controller (analog 1 axis) */
274 input_report_abs(dev + n, db9_abs[2], data[j + 3]);
275 case 0x34: /* saturn keyboard (udlr ZXC ASD QE Esc) */
276 case 0x02: /* digital pad (digital 2 axis + buttons) */
277 input_report_abs(dev + n, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64));
278 input_report_abs(dev + n, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16));
279 for (i = 0; i < 9; i++)
280 input_report_key(dev + n, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]);
281 break;
282 case 0x19: /* mission stick x2 (analog 6 axis + buttons) */
283 input_report_abs(dev + n, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64));
284 input_report_abs(dev + n, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16));
285 for (i = 0; i < 9; i++)
286 input_report_key(dev + n, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]);
287 input_report_abs(dev + n, db9_abs[2], data[j + 3]);
288 input_report_abs(dev + n, db9_abs[3], data[j + 4]);
289 input_report_abs(dev + n, db9_abs[4], data[j + 5]);
290 /*
291 input_report_abs(dev + n, db9_abs[8], (data[j + 6] & 128 ? 0 : 1) - (data[j + 6] & 64 ? 0 : 1));
292 input_report_abs(dev + n, db9_abs[9], (data[j + 6] & 32 ? 0 : 1) - (data[j + 6] & 16 ? 0 : 1));
293 */
294 input_report_abs(dev + n, db9_abs[6], data[j + 7]);
295 input_report_abs(dev + n, db9_abs[7], data[j + 8]);
296 input_report_abs(dev + n, db9_abs[5], data[j + 9]);
297 break;
298 case 0xd3: /* sankyo ff (analog 1 axis + stop btn) */
299 input_report_key(dev + n, BTN_A, data[j + 3] & 0x80);
300 input_report_abs(dev + n, db9_abs[2], data[j + 3] & 0x7f);
301 break;
302 case 0xe3: /* shuttle mouse (analog 2 axis + buttons. signed value) */
303 input_report_key(dev + n, BTN_START, data[j + 1] & 0x08);
304 input_report_key(dev + n, BTN_A, data[j + 1] & 0x04);
305 input_report_key(dev + n, BTN_C, data[j + 1] & 0x02);
306 input_report_key(dev + n, BTN_B, data[j + 1] & 0x01);
307 input_report_abs(dev + n, db9_abs[2], data[j + 2] ^ 0x80);
308 input_report_abs(dev + n, db9_abs[3], (0xff-(data[j + 3] ^ 0x80))+1); /* */
309 break;
310 case 0xff:
311 default: /* no pad */
312 input_report_abs(dev + n, db9_abs[0], 0);
313 input_report_abs(dev + n, db9_abs[1], 0);
314 for (i = 0; i < 9; i++)
315 input_report_key(dev + n, db9_cd32_btn[i], 0);
316 break;
317 }
318 }
319 return n;
320}
321
322static int db9_saturn(int mode, struct parport *port, struct input_dev *dev)
323{
324 unsigned char id, data[60];
325 int type, n, max_pads;
326 int tmp, i;
327
328 switch (mode) {
329 case DB9_SATURN_PAD:
330 type = 0;
331 n = 1;
332 break;
333 case DB9_SATURN_DPP:
334 type = 1;
335 n = 1;
336 break;
337 case DB9_SATURN_DPP_2:
338 type = 1;
339 n = 2;
340 break;
341 default:
342 return -1;
343 }
344 max_pads = min(db9_max_pads[mode], DB9_MAX_DEVICES);
345 for (tmp = 0, i = 0; i < n; i++) {
346 id = db9_saturn_read_packet(port, data, type + i, 1);
347 tmp = db9_saturn_report(id, data, dev, tmp, max_pads);
348 }
349 return 0;
350}
351
352static void db9_timer(unsigned long private)
353{
354 struct db9 *db9 = (void *) private;
355 struct parport *port = db9->pd->port;
356 struct input_dev *dev = db9->dev;
357 int data, i;
358
359 switch(db9->mode) {
360 case DB9_MULTI_0802_2:
361
362 data = parport_read_data(port) >> 3;
363
364 input_report_abs(dev + 1, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
365 input_report_abs(dev + 1, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
366 input_report_key(dev + 1, BTN_TRIGGER, ~data & DB9_FIRE1);
367
368 case DB9_MULTI_0802:
369
370 data = parport_read_status(port) >> 3;
371
372 input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
373 input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
374 input_report_key(dev, BTN_TRIGGER, data & DB9_FIRE1);
375 break;
376
377 case DB9_MULTI_STICK:
378
379 data = parport_read_data(port);
380
381 input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
382 input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
383 input_report_key(dev, BTN_TRIGGER, ~data & DB9_FIRE1);
384 break;
385
386 case DB9_MULTI2_STICK:
387
388 data = parport_read_data(port);
389
390 input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
391 input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
392 input_report_key(dev, BTN_TRIGGER, ~data & DB9_FIRE1);
393 input_report_key(dev, BTN_THUMB, ~data & DB9_FIRE2);
394 break;
395
396 case DB9_GENESIS_PAD:
397
398 parport_write_control(port, DB9_NOSELECT);
399 data = parport_read_data(port);
400
401 input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
402 input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
403 input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
404 input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
405
406 parport_write_control(port, DB9_NORMAL);
407 data=parport_read_data(port);
408
409 input_report_key(dev, BTN_A, ~data & DB9_FIRE1);
410 input_report_key(dev, BTN_START, ~data & DB9_FIRE2);
411 break;
412
413 case DB9_GENESIS5_PAD:
414
415 parport_write_control(port, DB9_NOSELECT);
416 data=parport_read_data(port);
417
418 input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
419 input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
420 input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
421 input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
422
423 parport_write_control(port, DB9_NORMAL);
424 data=parport_read_data(port);
425
426 input_report_key(dev, BTN_A, ~data & DB9_FIRE1);
427 input_report_key(dev, BTN_X, ~data & DB9_FIRE2);
428 input_report_key(dev, BTN_Y, ~data & DB9_LEFT);
429 input_report_key(dev, BTN_START, ~data & DB9_RIGHT);
430 break;
431
432 case DB9_GENESIS6_PAD:
433
434 parport_write_control(port, DB9_NOSELECT); /* 1 */
435 udelay(DB9_GENESIS6_DELAY);
436 data=parport_read_data(port);
437
438 input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
439 input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
440 input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
441 input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
442
443 parport_write_control(port, DB9_NORMAL);
444 udelay(DB9_GENESIS6_DELAY);
445 data=parport_read_data(port);
446
447 input_report_key(dev, BTN_A, ~data & DB9_FIRE1);
448 input_report_key(dev, BTN_START, ~data & DB9_FIRE2);
449
450 parport_write_control(port, DB9_NOSELECT); /* 2 */
451 udelay(DB9_GENESIS6_DELAY);
452 parport_write_control(port, DB9_NORMAL);
453 udelay(DB9_GENESIS6_DELAY);
454 parport_write_control(port, DB9_NOSELECT); /* 3 */
455 udelay(DB9_GENESIS6_DELAY);
456 data=parport_read_data(port);
457
458 input_report_key(dev, BTN_X, ~data & DB9_LEFT);
459 input_report_key(dev, BTN_Y, ~data & DB9_DOWN);
460 input_report_key(dev, BTN_Z, ~data & DB9_UP);
461 input_report_key(dev, BTN_MODE, ~data & DB9_RIGHT);
462
463 parport_write_control(port, DB9_NORMAL);
464 udelay(DB9_GENESIS6_DELAY);
465 parport_write_control(port, DB9_NOSELECT); /* 4 */
466 udelay(DB9_GENESIS6_DELAY);
467 parport_write_control(port, DB9_NORMAL);
468 break;
469
470 case DB9_SATURN_PAD:
471 case DB9_SATURN_DPP:
472 case DB9_SATURN_DPP_2:
473
474 db9_saturn(db9->mode, port, dev);
475 break;
476
477 case DB9_CD32_PAD:
478
479 data=parport_read_data(port);
480
481 input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
482 input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
483
484 parport_write_control(port, 0x0a);
485
486 for (i = 0; i < 7; i++) {
487 data = parport_read_data(port);
488 parport_write_control(port, 0x02);
489 parport_write_control(port, 0x0a);
490 input_report_key(dev, db9_cd32_btn[i], ~data & DB9_FIRE2);
491 }
492
493 parport_write_control(port, 0x00);
494 break;
495 }
496
497 input_sync(dev);
498
499 mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME);
500}
501
502static int db9_open(struct input_dev *dev)
503{
504 struct db9 *db9 = dev->private;
505 struct parport *port = db9->pd->port;
506
507 if (!db9->used++) {
508 parport_claim(db9->pd);
509 parport_write_data(port, 0xff);
510 if (db9_reverse[db9->mode]) {
511 parport_data_reverse(port);
512 parport_write_control(port, DB9_NORMAL);
513 }
514 mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME);
515 }
516
517 return 0;
518}
519
520static void db9_close(struct input_dev *dev)
521{
522 struct db9 *db9 = dev->private;
523 struct parport *port = db9->pd->port;
524
525 if (!--db9->used) {
526 del_timer(&db9->timer);
527 parport_write_control(port, 0x00);
528 parport_data_forward(port);
529 parport_release(db9->pd);
530 }
531}
532
533static struct db9 __init *db9_probe(int *config, int nargs)
534{
535 struct db9 *db9;
536 struct parport *pp;
537 int i, j;
538
539 if (config[0] < 0)
540 return NULL;
541
542 if (nargs < 2) {
543 printk(KERN_ERR "db9.c: Device type must be specified.\n");
544 return NULL;
545 }
546
547 if (config[1] < 1 || config[1] >= DB9_MAX_PAD || !db9_buttons[config[1]]) {
548 printk(KERN_ERR "db9.c: bad config\n");
549 return NULL;
550 }
551
552 pp = parport_find_number(config[0]);
553 if (!pp) {
554 printk(KERN_ERR "db9.c: no such parport\n");
555 return NULL;
556 }
557
558 if (db9_bidirectional[config[1]]) {
559 if (!(pp->modes & PARPORT_MODE_TRISTATE)) {
560 printk(KERN_ERR "db9.c: specified parport is not bidirectional\n");
561 parport_put_port(pp);
562 return NULL;
563 }
564 }
565
566 if (!(db9 = kmalloc(sizeof(struct db9), GFP_KERNEL))) {
567 parport_put_port(pp);
568 return NULL;
569 }
570 memset(db9, 0, sizeof(struct db9));
571
572 db9->mode = config[1];
573 init_timer(&db9->timer);
574 db9->timer.data = (long) db9;
575 db9->timer.function = db9_timer;
576
577 db9->pd = parport_register_device(pp, "db9", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
578 parport_put_port(pp);
579
580 if (!db9->pd) {
581 printk(KERN_ERR "db9.c: parport busy already - lp.o loaded?\n");
582 kfree(db9);
583 return NULL;
584 }
585
586 for (i = 0; i < (min(db9_max_pads[db9->mode], DB9_MAX_DEVICES)); i++) {
587
588 sprintf(db9->phys[i], "%s/input%d", db9->pd->port->name, i);
589
590 db9->dev[i].private = db9;
591 db9->dev[i].open = db9_open;
592 db9->dev[i].close = db9_close;
593
594 db9->dev[i].name = db9_name[db9->mode];
595 db9->dev[i].phys = db9->phys[i];
596 db9->dev[i].id.bustype = BUS_PARPORT;
597 db9->dev[i].id.vendor = 0x0002;
598 db9->dev[i].id.product = config[1];
599 db9->dev[i].id.version = 0x0100;
600
601 db9->dev[i].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
602 for (j = 0; j < db9_buttons[db9->mode]; j++)
603 set_bit(db9_btn[db9->mode][j], db9->dev[i].keybit);
604 for (j = 0; j < db9_num_axis[db9->mode]; j++) {
605 set_bit(db9_abs[j], db9->dev[i].absbit);
606 if (j < 2) {
607 db9->dev[i].absmin[db9_abs[j]] = -1;
608 db9->dev[i].absmax[db9_abs[j]] = 1;
609 } else {
610 db9->dev[i].absmin[db9_abs[j]] = 1;
611 db9->dev[i].absmax[db9_abs[j]] = 255;
612 db9->dev[i].absflat[db9_abs[j]] = 0;
613 }
614 }
615 input_register_device(db9->dev + i);
616 printk(KERN_INFO "input: %s on %s\n", db9->dev[i].name, db9->pd->port->name);
617 }
618
619 return db9;
620}
621
622static int __init db9_init(void)
623{
624 db9_base[0] = db9_probe(db9, db9_nargs);
625 db9_base[1] = db9_probe(db9_2, db9_nargs_2);
626 db9_base[2] = db9_probe(db9_3, db9_nargs_3);
627
628 if (db9_base[0] || db9_base[1] || db9_base[2])
629 return 0;
630
631 return -ENODEV;
632}
633
634static void __exit db9_exit(void)
635{
636 int i, j;
637
638 for (i = 0; i < 3; i++)
639 if (db9_base[i]) {
640 for (j = 0; j < min(db9_max_pads[db9_base[i]->mode], DB9_MAX_DEVICES); j++)
641 input_unregister_device(db9_base[i]->dev + j);
642 parport_unregister_device(db9_base[i]->pd);
643 }
644}
645
646module_init(db9_init);
647module_exit(db9_exit);
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-14 23:24:50 -0500