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Import 2.4.0-test2pre7
[davej-history.git] / drivers / char / joystick / db9.c
blobf9edd0755fc5ef29b1a4d77e2505f85b0ddd86c2
1 /*
2 * $Id: db9.c,v 1.5 2000/05/29 20:39:38 vojtech Exp $
3 *
4 * Copyright (c) 1999 Vojtech Pavlik
5 *
6 * Based on the work of:
7 * Andree Borrmann Mats Sjövall
8 *
9 * Sponsored by SuSE
10 */
11
12 /*
13 * Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver for Linux
14 */
15
16 /*
17 * This program is free software; you can redistribute it and/or modify
18 * it under the terms of the GNU General Public License as published by
19 * the Free Software Foundation; either version 2 of the License, or
20 * (at your option) any later version.
21 *
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
26 *
27 * You should have received a copy of the GNU General Public License
28 * along with this program; if not, write to the Free Software
29 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30 *
31 * Should you need to contact me, the author, you can do so either by
32 * e-mail - mail your message to <vojtech@suse.cz>, or by paper mail:
33 * Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic
34 */
35
36 #include <linux/kernel.h>
37 #include <linux/module.h>
38 #include <linux/delay.h>
39 #include <linux/init.h>
40 #include <linux/parport.h>
41 #include <linux/input.h>
42
43 MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
44 MODULE_PARM(db9, "2i");
45 MODULE_PARM(db9_2, "2i");
46 MODULE_PARM(db9_3, "2i");
47
48 #define DB9_MULTI_STICK 0x01
49 #define DB9_MULTI2_STICK 0x02
50 #define DB9_GENESIS_PAD 0x03
51 #define DB9_GENESIS5_PAD 0x05
52 #define DB9_GENESIS6_PAD 0x06
53 #define DB9_SATURN_PAD 0x07
54 #define DB9_MULTI_0802 0x08
55 #define DB9_MULTI_0802_2 0x09
56 #define DB9_CD32_PAD 0x0A
57 #define DB9_MAX_PAD 0x0B
58
59 #define DB9_UP 0x01
60 #define DB9_DOWN 0x02
61 #define DB9_LEFT 0x04
62 #define DB9_RIGHT 0x08
63 #define DB9_FIRE1 0x10
64 #define DB9_FIRE2 0x20
65 #define DB9_FIRE3 0x40
66 #define DB9_FIRE4 0x80
67
68 #define DB9_NORMAL 0x0a
69 #define DB9_NOSELECT 0x08
70
71 #define DB9_SATURN0 0x00
72 #define DB9_SATURN1 0x02
73 #define DB9_SATURN2 0x04
74 #define DB9_SATURN3 0x06
75
76 #define DB9_GENESIS6_DELAY 14
77 #define DB9_REFRESH_TIME HZ/100
78
79 static int db9[] __initdata = { -1, 0 };
80 static int db9_2[] __initdata = { -1, 0 };
81 static int db9_3[] __initdata = { -1, 0 };
82
83 struct db9 {
84 struct input_dev dev[2];
85 struct timer_list timer;
86 struct pardevice *pd;
87 int mode;
88 int used;
89 };
90
91 static struct db9 *db9_base[3];
92
93 static short db9_multi_btn[] = { BTN_TRIGGER, BTN_THUMB };
94 static short db9_genesis_btn[] = { BTN_START, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_MODE };
95 static short db9_cd32_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START };
96
97 static char db9_buttons[DB9_MAX_PAD] = { 0, 1, 2, 4, 0, 6, 8, 8, 1, 1, 7 };
98 static short *db9_btn[DB9_MAX_PAD] = { db9_multi_btn, db9_multi_btn, db9_genesis_btn, NULL, db9_genesis_btn,
99 db9_genesis_btn, db9_cd32_btn, db9_multi_btn, db9_multi_btn, db9_cd32_btn };
100 static char *db9_name[DB9_MAX_PAD] = { NULL, "Multisystem joystick", "Multisystem joystick (2 fire)", "Genesis pad",
101 NULL, "Genesis 5 pad", "Genesis 6 pad", "Saturn pad", "Multisystem (0.8.0.2) joystick",
102 "Multisystem (0.8.0.2-dual) joystick", "Amiga CD-32 pad" };
103
104 static void db9_timer(unsigned long private)
105 {
106 struct db9 *db9 = (void *) private;
107 struct parport *port = db9->pd->port;
108 struct input_dev *dev = db9->dev;
109 int data, i;
110
111 switch(db9->mode) {
112 case DB9_MULTI_0802_2:
113
114 data = parport_read_data(port) >> 3;
115
116 input_report_abs(dev + 1, ABS_X, (data&DB9_DOWN ?0:1) - (data&DB9_UP ?0:1));
117 input_report_abs(dev + 1, ABS_Y, (data&DB9_RIGHT?0:1) - (data&DB9_LEFT?0:1));
118 input_report_key(dev + 1, BTN_TRIGGER, ~data&DB9_FIRE1);
119
120 case DB9_MULTI_0802:
121
122 data = parport_read_status(port) >> 3;
123
124 input_report_abs(dev, ABS_X, (data&DB9_DOWN ?0:1) - (data&DB9_UP ?0:1));
125 input_report_abs(dev, ABS_Y, (data&DB9_RIGHT?0:1) - (data&DB9_LEFT?0:1));
126 input_report_key(dev, BTN_TRIGGER, data&DB9_FIRE1);
127 break;
128
129 case DB9_MULTI_STICK:
130
131 data = parport_read_data(port);
132
133 input_report_abs(dev, ABS_X, (data&DB9_DOWN ?0:1) - (data&DB9_UP ?0:1));
134 input_report_abs(dev, ABS_Y, (data&DB9_RIGHT?0:1) - (data&DB9_LEFT?0:1));
135 input_report_key(dev, BTN_TRIGGER, ~data&DB9_FIRE1);
136 break;
137
138 case DB9_MULTI2_STICK:
139
140 data = parport_read_data(port);
141
142 input_report_abs(dev, ABS_X, (data&DB9_DOWN ?0:1) - (data&DB9_UP ?0:1));
143 input_report_abs(dev, ABS_Y, (data&DB9_RIGHT?0:1) - (data&DB9_LEFT?0:1));
144 input_report_key(dev, BTN_TRIGGER, ~data&DB9_FIRE1);
145 input_report_key(dev, BTN_THUMB, ~data&DB9_FIRE2);
146 break;
147
148 case DB9_GENESIS_PAD:
149
150 parport_write_control(port, DB9_NOSELECT);
151 data = parport_read_data(port);
152
153 input_report_abs(dev, ABS_X, (data&DB9_DOWN ?0:1) - (data&DB9_UP ?0:1));
154 input_report_abs(dev, ABS_Y, (data&DB9_RIGHT?0:1) - (data&DB9_LEFT?0:1));
155 input_report_key(dev, BTN_B, ~data&DB9_FIRE1);
156 input_report_key(dev, BTN_C, ~data&DB9_FIRE2);
157
158 parport_write_control(port, DB9_NORMAL);
159 data=parport_read_data(port);
160
161 input_report_key(dev, BTN_A, ~data&DB9_FIRE1);
162 input_report_key(dev, BTN_START, ~data&DB9_FIRE2);
163 break;
164
165 case DB9_GENESIS5_PAD:
166
167 parport_write_control(port, DB9_NOSELECT);
168 data=parport_read_data(port);
169
170 input_report_abs(dev, ABS_X, (data&DB9_DOWN ?0:1) - (data&DB9_UP ?0:1));
171 input_report_abs(dev, ABS_Y, (data&DB9_RIGHT?0:1) - (data&DB9_LEFT?0:1));
172 input_report_key(dev, BTN_B, ~data&DB9_FIRE1);
173 input_report_key(dev, BTN_C, ~data&DB9_FIRE2);
174
175 parport_write_control(port, DB9_NORMAL);
176 data=parport_read_data(port);
177
178 input_report_key(dev, BTN_A, ~data&DB9_FIRE1);
179 input_report_key(dev, BTN_X, ~data&DB9_FIRE2);
180 input_report_key(dev, BTN_Y, ~data&DB9_LEFT);
181 input_report_key(dev, BTN_START, ~data&DB9_RIGHT);
182 break;
183
184 case DB9_GENESIS6_PAD:
185
186 parport_write_control(port, DB9_NOSELECT); /* 1 */
187 udelay(DB9_GENESIS6_DELAY);
188 data=parport_read_data(port);
189
190 input_report_abs(dev, ABS_X, (data&DB9_DOWN ?0:1) - (data&DB9_UP ?0:1));
191 input_report_abs(dev, ABS_Y, (data&DB9_RIGHT?0:1) - (data&DB9_LEFT?0:1));
192 input_report_key(dev, BTN_B, ~data&DB9_FIRE1);
193 input_report_key(dev, BTN_C, ~data&DB9_FIRE2);
194
195 parport_write_control(port, DB9_NORMAL);
196 udelay(DB9_GENESIS6_DELAY);
197 data=parport_read_data(port);
198
199 input_report_key(dev, BTN_A, ~data&DB9_FIRE1);
200 input_report_key(dev, BTN_X, ~data&DB9_FIRE2);
201
202 parport_write_control(port, DB9_NOSELECT); /* 2 */
203 udelay(DB9_GENESIS6_DELAY);
204 parport_write_control(port, DB9_NORMAL);
205 udelay(DB9_GENESIS6_DELAY);
206 parport_write_control(port, DB9_NOSELECT); /* 3 */
207 udelay(DB9_GENESIS6_DELAY);
208 data=parport_read_data(port);
209
210 input_report_key(dev, BTN_Y, ~data&DB9_LEFT);
211 input_report_key(dev, BTN_Z, ~data&DB9_DOWN);
212 input_report_key(dev, BTN_MODE, ~data&DB9_UP);
213 input_report_key(dev, BTN_START, ~data&DB9_RIGHT);
214
215 parport_write_control(port, DB9_NORMAL);
216 udelay(DB9_GENESIS6_DELAY);
217 parport_write_control(port, DB9_NOSELECT); /* 4 */
218 udelay(DB9_GENESIS6_DELAY);
219 parport_write_control(port, DB9_NORMAL);
220 break;
221
222 case DB9_SATURN_PAD:
223
224 parport_write_control(port, DB9_SATURN0);
225 data = parport_read_data(port);
226
227 input_report_key(dev, BTN_Y, ~data&DB9_LEFT);
228 input_report_key(dev, BTN_Z, ~data&DB9_DOWN);
229 input_report_key(dev, BTN_TL,~data&DB9_UP);
230 input_report_key(dev, BTN_TR,~data&DB9_RIGHT);
231
232 parport_write_control(port, DB9_SATURN2);
233 data = parport_read_data(port);
234
235 input_report_abs(dev, ABS_X, (data&DB9_DOWN ?0:1) - (data&DB9_UP ?0:1));
236 input_report_abs(dev, ABS_Y, (data&DB9_RIGHT?0:1) - (data&DB9_LEFT?0:1));
237
238 parport_write_control(port, DB9_NORMAL);
239 data = parport_read_data(port);
240
241 input_report_key(dev, BTN_A, ~data&DB9_LEFT);
242 input_report_key(dev, BTN_B, ~data&DB9_UP);
243 input_report_key(dev, BTN_C, ~data&DB9_DOWN);
244 input_report_key(dev, BTN_X, ~data&DB9_RIGHT);
245 break;
246
247 case DB9_CD32_PAD:
248
249 data=parport_read_data(port);
250
251 input_report_abs(dev, ABS_X, (data&DB9_DOWN ?0:1) - (data&DB9_UP ?0:1));
252 input_report_abs(dev, ABS_Y, (data&DB9_RIGHT?0:1) - (data&DB9_LEFT?0:1));
253
254 parport_write_control(port, 0x0a);
255
256 for (i = 0; i < 7; i++) {
257 data = parport_read_data(port);
258 parport_write_control(port, 0x02);
259 parport_write_control(port, 0x0a);
260 input_report_key(dev, db9_cd32_btn[i], ~data&DB9_FIRE2);
261 }
262
263 parport_write_control(port, 0x00);
264 break;
265 }
266
267 mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME);
268 }
269
270 static int db9_open(struct input_dev *dev)
271 {
272 struct db9 *db9 = dev->private;
273 struct parport *port = db9->pd->port;
274
275 if (!db9->used++) {
276 parport_claim(db9->pd);
277 parport_write_data(port, 0xff);
278 parport_data_reverse(port);
279 parport_write_control(port, DB9_NORMAL);
280 mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME);
281 }
282
283 return 0;
284 }
285
286 static void db9_close(struct input_dev *dev)
287 {
288 struct db9 *db9 = dev->private;
289 struct parport *port = db9->pd->port;
290
291 if (!--db9->used) {
292 del_timer(&db9->timer);
293 parport_write_control(port, 0x00);
294 parport_data_forward(port);
295 parport_release(db9->pd);
296 }
297 }
298
299 static struct db9 __init *db9_probe(int *config)
300 {
301 struct db9 *db9;
302 struct parport *pp;
303 int i, j;
304
305 if (config[0] < 0)
306 return NULL;
307 if (config[1] < 1 || config[1] >= DB9_MAX_PAD || !db9_buttons[config[1]]) {
308 printk(KERN_ERR "db9.c: bad config\n");
309 return NULL;
310 }
311
312 for (pp = parport_enumerate(); pp && (config[0] > 0); pp = pp->next)
313 config[0]--;
314
315 if (!pp) {
316 printk(KERN_ERR "db9.c: no such parport\n");
317 return NULL;
318 }
319
320 if (!(pp->modes & PARPORT_MODE_TRISTATE) && config[1] != DB9_MULTI_0802) {
321 printk(KERN_ERR "db9.c: specified parport is not bidirectional\n");
322 return NULL;
323 }
324
325 if (!(db9 = kmalloc(sizeof(struct db9), GFP_KERNEL)))
326 return NULL;
327 memset(db9, 0, sizeof(struct db9));
328
329 db9->mode = config[1];
330 init_timer(&db9->timer);
331 db9->timer.data = (long) db9;
332 db9->timer.function = db9_timer;
333
334 db9->pd = parport_register_device(pp, "db9", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
335
336 if (!db9->pd) {
337 printk(KERN_ERR "db9.c: parport busy already - lp.o loaded?\n");
338 kfree(db9);
339 return NULL;
340 }
341
342 for (i = 0; i < 1 + (db9->mode == DB9_MULTI_0802_2); i++) {
343
344 db9->dev[i].private = db9;
345 db9->dev[i].open = db9_open;
346 db9->dev[i].close = db9_close;
347
348 db9->dev[i].name = db9_name[db9->mode];
349 db9->dev[i].idbus = BUS_PARPORT;
350 db9->dev[i].idvendor = 0x0002;
351 db9->dev[i].idproduct = config[1];
352 db9->dev[i].idversion = 0x0100;
353
354 db9->dev[i].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
355 db9->dev[i].absbit[0] = BIT(ABS_X) | BIT(ABS_Y);
356
357 for (j = 0; j < db9_buttons[db9->mode]; j++)
358 set_bit(db9_btn[db9->mode][j], db9->dev[i].keybit);
359
360 db9->dev[i].absmin[ABS_X] = -1; db9->dev[i].absmax[ABS_X] = 1;
361 db9->dev[i].absmin[ABS_Y] = -1; db9->dev[i].absmax[ABS_Y] = 1;
362
363 input_register_device(db9->dev + i);
364 printk(KERN_INFO "input%d: %s on %s\n",
365 db9->dev[i].number, db9_name[db9->mode], db9->pd->port->name);
366 }
367
368 return db9;
369 }
370
371 #ifndef MODULE
372 int __init db9_setup(char *str)
373 {
374 int i, ints[3];
375 get_options(str, ARRAY_SIZE(ints), ints);
376 for (i = 0; i <= ints[0] && i < 2; i++) db9[i] = ints[i + 1];
377 return 1;
378 }
379 int __init db9_setup_2(char *str)
380 {
381 int i, ints[3];
382 get_options(str, ARRAY_SIZE(ints), ints);
383 for (i = 0; i <= ints[0] && i < 2; i++) db9_2[i] = ints[i + 1];
384 return 1;
385 }
386 int __init db9_setup_3(char *str)
387 {
388 int i, ints[3];
389 get_options(str, ARRAY_SIZE(ints), ints);
390 for (i = 0; i <= ints[0] && i < 2; i++) db9_3[i] = ints[i + 1];
391 return 1;
392 }
393 __setup("db9=", db9_setup);
394 __setup("db9_2=", db9_setup_2);
395 __setup("db9_3=", db9_setup_3);
396 #endif
397
398 int __init db9_init(void)
399 {
400 db9_base[0] = db9_probe(db9);
401 db9_base[1] = db9_probe(db9_2);
402 db9_base[2] = db9_probe(db9_3);
403
404 if (db9_base[0] || db9_base[1] || db9_base[2])
405 return 0;
406
407 return -ENODEV;
408 }
409
410 void __exit db9_exit(void)
411 {
412 int i, j;
413
414 for (i = 0; i < 3; i++)
415 if (db9_base[i]) {
416 for (j = 0; j < 1 + (db9_base[i]->mode == DB9_MULTI_0802_2); j++)
417 input_unregister_device(db9_base[i]->dev + j);
418 parport_unregister_device(db9_base[i]->pd);
419 }
420 }
421
422 module_init(db9_init);
423 module_exit(db9_exit);
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