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Import 2.4.0-test2pre6
[davej-history.git] / drivers / char / joystick / joy-db9.c
blob41169b12c027f63f1a4207fcd45cc4f69155b887
1 /*
2 * joy-db9.c Version 0.6V
3 *
4 * Copyright (c) 1998 Andree Borrmann
5 * Copyright (c) 1999 Vojtech Pavlik
6 *
7 * Sponsored by SuSE
8 */
9
10 /*
11 * This is a module for the Linux joystick driver, supporting
12 * console (Atari, Amstrad, Commodore, Amiga, Sega) joysticks
13 * and gamepads connected to the parallel port.
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 <asm/io.h>
37 #include <asm/system.h>
38 #include <linux/errno.h>
39 #include <linux/ioport.h>
40 #include <linux/joystick.h>
41 #include <linux/kernel.h>
42 #include <linux/module.h>
43 #include <linux/string.h>
44 #include <linux/delay.h>
45 #include <linux/init.h>
46
47 MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
48 MODULE_PARM(js_db9, "2i");
49 MODULE_PARM(js_db9_2, "2i");
50 MODULE_PARM(js_db9_3, "2i");
51
52 #define JS_MULTI_STICK 0x01
53 #define JS_MULTI2_STICK 0x02
54 #define JS_GENESIS_PAD 0x03
55 #define JS_GENESIS5_PAD 0x05
56 #define JS_GENESIS6_PAD 0x06
57 #define JS_SATURN_PAD 0x07
58 #define JS_MULTI_0802 0x08
59 #define JS_MULTI_0802_2 0x09
60 #define JS_MAX_PAD 0x0A
61
62 #define JS_DB9_UP 0x01
63 #define JS_DB9_DOWN 0x02
64 #define JS_DB9_LEFT 0x04
65 #define JS_DB9_RIGHT 0x08
66 #define JS_DB9_FIRE1 0x10
67 #define JS_DB9_FIRE2 0x20
68 #define JS_DB9_FIRE3 0x40
69 #define JS_DB9_FIRE4 0x80
70
71 #define JS_DB9_NORMAL 0x2a
72 #define JS_DB9_NOSELECT 0x28
73
74 #define JS_DB9_SATURN0 0x20
75 #define JS_DB9_SATURN1 0x22
76 #define JS_DB9_SATURN2 0x24
77 #define JS_DB9_SATURN3 0x26
78
79 #define JS_GENESIS6_DELAY 14
80
81 static struct js_port* js_db9_port = NULL;
82
83 static int js_db9[] __initdata = { -1, 0 };
84 static int js_db9_2[] __initdata = { -1, 0 };
85 static int js_db9_3[] __initdata = { -1, 0 };
86
87 struct js_db9_info {
88 struct pardevice *port; /* parport device */
89 int mode; /* pad mode */
90 };
91
92 /*
93 * js_db9_read() reads and analyzes db9 joystick data.
94 */
95
96 static int js_db9_read(void *xinfo, int **axes, int **buttons)
97 {
98 struct js_db9_info *info = xinfo;
99 int data;
100
101 switch(info->mode)
102 {
103 case JS_MULTI_0802_2:
104
105 data = JS_PAR_DATA_IN(info->port) >> 3;
106
107 axes[1][1] = (data&JS_DB9_DOWN ?0:1) - (data&JS_DB9_UP ?0:1);
108 axes[1][0] = (data&JS_DB9_RIGHT?0:1) - (data&JS_DB9_LEFT?0:1);
109
110 buttons[1][0] = (data&JS_DB9_FIRE1?0:1);
111
112 case JS_MULTI_0802:
113
114 data = JS_PAR_STATUS(info->port) >> 3;
115
116 axes[0][1] = (data&JS_DB9_DOWN ?0:1) - (data&JS_DB9_UP ?0:1);
117 axes[0][0] = (data&JS_DB9_RIGHT?0:1) - (data&JS_DB9_LEFT?0:1);
118
119 buttons[0][0] = (data&JS_DB9_FIRE1?1:0);
120
121 break;
122
123 case JS_MULTI_STICK:
124
125 data = JS_PAR_DATA_IN(info->port);
126
127 axes[0][1] = (data&JS_DB9_DOWN ?0:1) - (data&JS_DB9_UP ?0:1);
128 axes[0][0] = (data&JS_DB9_RIGHT?0:1) - (data&JS_DB9_LEFT?0:1);
129
130 buttons[0][0] = (data&JS_DB9_FIRE1?0:1);
131
132 break;
133
134 case JS_MULTI2_STICK:
135
136 data=JS_PAR_DATA_IN(info->port);
137
138 axes[0][1] = (data&JS_DB9_DOWN ?0:1) - (data&JS_DB9_UP ?0:1);
139 axes[0][0] = (data&JS_DB9_RIGHT?0:1) - (data&JS_DB9_LEFT?0:1);
140
141 buttons[0][0] = (data&JS_DB9_FIRE1?0:1) | (data&JS_DB9_FIRE2?0:2);
142
143 break;
144
145 case JS_GENESIS_PAD:
146
147 JS_PAR_CTRL_OUT(JS_DB9_NOSELECT, info->port);
148 data = JS_PAR_DATA_IN(info->port);
149
150 axes[0][1] = (data&JS_DB9_DOWN ?0:1) - (data&JS_DB9_UP ?0:1);
151 axes[0][0] = (data&JS_DB9_RIGHT?0:1) - (data&JS_DB9_LEFT?0:1);
152
153 buttons[0][0] = (data&JS_DB9_FIRE1?0:2) | (data&JS_DB9_FIRE2?0:4);
154
155 JS_PAR_CTRL_OUT(JS_DB9_NORMAL,info->port);
156 data=JS_PAR_DATA_IN(info->port);
157
158 buttons[0][0] |= (data&JS_DB9_FIRE1?0:1) | (data&JS_DB9_FIRE2?0:8);
159
160 break;
161
162 case JS_GENESIS5_PAD:
163
164 JS_PAR_CTRL_OUT(JS_DB9_NOSELECT,info->port);
165 data=JS_PAR_DATA_IN(info->port);
166
167 axes[0][1] = (data&JS_DB9_DOWN ?0:1) - (data&JS_DB9_UP ?0:1);
168 axes[0][0] = (data&JS_DB9_RIGHT?0:1) - (data&JS_DB9_LEFT?0:1);
169
170 buttons[0][0] = (data&JS_DB9_FIRE1?0:0x02) | (data&JS_DB9_FIRE2?0:0x04);
171
172 JS_PAR_CTRL_OUT(JS_DB9_NORMAL, info->port);
173 data=JS_PAR_DATA_IN(info->port);
174
175 buttons[0][0] |= (data&JS_DB9_FIRE1?0:0x01) | (data&JS_DB9_FIRE2?0:0x08) |
176 (data&JS_DB9_LEFT ?0:0x10) | (data&JS_DB9_RIGHT?0:0x20);
177 break;
178
179 case JS_GENESIS6_PAD:
180
181 JS_PAR_CTRL_OUT(JS_DB9_NOSELECT,info->port); /* 1 */
182 udelay(JS_GENESIS6_DELAY);
183 data=JS_PAR_DATA_IN(info->port);
184
185 axes[0][1] = (data&JS_DB9_DOWN ?0:1) - (data&JS_DB9_UP ?0:1);
186 axes[0][0] = (data&JS_DB9_RIGHT?0:1) - (data&JS_DB9_LEFT?0:1);
187
188 buttons[0][0] = (data&JS_DB9_FIRE1?0:0x02) | (data&JS_DB9_FIRE2?0:0x04);
189
190 JS_PAR_CTRL_OUT(JS_DB9_NORMAL, info->port);
191 udelay(JS_GENESIS6_DELAY);
192 data=JS_PAR_DATA_IN(info->port);
193
194 buttons[0][0] |= (data&JS_DB9_FIRE1?0:0x01) | (data&JS_DB9_FIRE2?0:0x08);
195
196 JS_PAR_CTRL_OUT(JS_DB9_NOSELECT, info->port); /* 2 */
197 udelay(JS_GENESIS6_DELAY);
198 JS_PAR_CTRL_OUT(JS_DB9_NORMAL, info->port);
199 udelay(JS_GENESIS6_DELAY);
200 JS_PAR_CTRL_OUT(JS_DB9_NOSELECT, info->port); /* 3 */
201 udelay(JS_GENESIS6_DELAY);
202 data=JS_PAR_DATA_IN(info->port);
203
204 buttons[0][0] |= (data&JS_DB9_LEFT?0:0x10) | (data&JS_DB9_DOWN ?0:0x20) |
205 (data&JS_DB9_UP ?0:0x40) | (data&JS_DB9_RIGHT?0:0x80);
206
207 JS_PAR_CTRL_OUT(JS_DB9_NORMAL, info->port);
208 udelay(JS_GENESIS6_DELAY);
209 JS_PAR_CTRL_OUT(JS_DB9_NOSELECT, info->port); /* 4 */
210 udelay(JS_GENESIS6_DELAY);
211 JS_PAR_CTRL_OUT(JS_DB9_NORMAL, info->port);
212
213 break;
214
215 case JS_SATURN_PAD:
216
217 JS_PAR_CTRL_OUT(JS_DB9_SATURN0, info->port);
218 data = JS_PAR_DATA_IN(info->port);
219
220 buttons[0][0] = (data&JS_DB9_UP ?0:0x20) | (data&JS_DB9_DOWN ?0:0x10) |
221 (data&JS_DB9_LEFT?0:0x08) | (data&JS_DB9_RIGHT?0:0x40);
222
223 JS_PAR_CTRL_OUT(JS_DB9_SATURN2, info->port);
224 data = JS_PAR_DATA_IN(info->port);
225
226 axes[0][1] = (data&JS_DB9_DOWN ?0:1) - (data&JS_DB9_UP ?0:1);
227 axes[0][0] = (data&JS_DB9_RIGHT?0:1) - (data&JS_DB9_LEFT?0:1);
228
229 JS_PAR_CTRL_OUT(JS_DB9_NORMAL, info->port);
230 data = JS_PAR_DATA_IN(info->port);
231
232 buttons[0][0] |= (data&JS_DB9_UP ?0:0x02) | (data&JS_DB9_DOWN ?0:0x04) |
233 (data&JS_DB9_LEFT?0:0x01) | (data&JS_DB9_RIGHT?0:0x80);
234
235
236 break;
237
238 default:
239 return -1;
240 }
241
242 return 0;
243 }
244
245 /*
246 * open callback: claim parport.
247 * FIXME: race possible.
248 */
249
250 int js_db9_open(struct js_dev *dev)
251 {
252 struct js_db9_info *info = dev->port->info;
253
254 if (!MOD_IN_USE) {
255 if (parport_claim(info->port)) return -EBUSY;
256
257 JS_PAR_DATA_OUT(0xff, info->port);
258 if (info->mode != JS_MULTI_0802)
259 JS_PAR_ECTRL_OUT(0x35,info->port); /* enable PS/2 mode: */
260 JS_PAR_CTRL_OUT(JS_DB9_NORMAL,info->port); /* reverse direction, enable Select signal */
261 }
262
263 MOD_INC_USE_COUNT;
264 return 0;
265 }
266
267 /*
268 * close callback: release parport
269 */
270
271 int js_db9_close(struct js_dev *dev)
272 {
273 struct js_db9_info *info = dev->port->info;
274
275 MOD_DEC_USE_COUNT;
276
277 if (!MOD_IN_USE) {
278
279 JS_PAR_CTRL_OUT(0x00,info->port); /* normal direction */
280 if (info->mode != JS_MULTI_0802)
281 JS_PAR_ECTRL_OUT(0x15,info->port); /* enable normal mode */
282
283 parport_release(info->port);
284 }
285 return 0;
286 }
287
288 #ifdef MODULE
289 void cleanup_module(void)
290 {
291 struct js_db9_info *info;
292 int i;
293
294 while (js_db9_port) {
295 info = js_db9_port->info;
296
297 for (i = 0; i < js_db9_port->ndevs; i++)
298 if (js_db9_port->devs[i])
299 js_unregister_device(js_db9_port->devs[i]);
300 parport_unregister_device(info->port);
301 js_db9_port = js_unregister_port(js_db9_port);
302 }
303
304 }
305 #endif
306
307 /*
308 * js_db9_init_corr() initializes correction values of
309 * db9 gamepads.
310 */
311
312 static void __init js_db9_init_corr(struct js_corr *corr)
313 {
314 int i;
315
316 for (i = 0; i < 2; i++) {
317 corr[i].type = JS_CORR_BROKEN;
318 corr[i].prec = 0;
319 corr[i].coef[0] = 0;
320 corr[i].coef[1] = 0;
321 corr[i].coef[2] = (1 << 29);
322 corr[i].coef[3] = (1 << 29);
323 }
324 }
325
326 /*
327 * js_db9_probe() probes for db9 gamepads.
328 */
329
330 static struct js_port __init *js_db9_probe(int *config, struct js_port *port)
331 {
332 struct js_db9_info info;
333 struct parport *pp;
334 int i;
335 char buttons[JS_MAX_PAD] = {0,1,2,4,0,6,8,8,1,1};
336 char *name[JS_MAX_PAD] = {NULL, "Multisystem joystick", "Multisystem joystick (2 fire)", "Genesis pad",
337 NULL, "Genesis 5 pad", "Genesis 6 pad", "Saturn pad", "Multisystem (0.8.0.2) joystick",
338 "Multisystem (0.8.0.2-dual) joystick"};
339
340 if (config[0] < 0) return port;
341 if (config[1] < 0 || config[1] >= JS_MAX_PAD || !name[config[1]]) return port;
342
343 info.mode = config[1];
344
345 if (config[0] > 0x10)
346 for (pp=parport_enumerate(); pp && (pp->base!=config[0]); pp=pp->next);
347 else
348 for (pp=parport_enumerate(); pp && (config[0]>0); pp=pp->next) config[0]--;
349
350 if (!pp) {
351 printk(KERN_ERR "joy-db9: no such parport\n");
352 return port;
353 }
354
355 if (!(pp->modes & (PARPORT_MODE_PCPS2 | PARPORT_MODE_PCECPPS2)) && info.mode != JS_MULTI_0802) {
356 printk(KERN_ERR "js-db9: specified parport is not bidirectional\n");
357 return port;
358 }
359
360 info.port = parport_register_device(pp, "joystick (db9)", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
361 if (!info.port)
362 return port;
363
364 port = js_register_port(port, &info, 1 + (info.mode == JS_MULTI_0802_2), sizeof(struct js_db9_info), js_db9_read);
365
366 for (i = 0; i < 1 + (info.mode == JS_MULTI_0802_2); i++) {
367 printk(KERN_INFO "js%d: %s on %s\n",
368 js_register_device(port, i, 2, buttons[info.mode], name[info.mode], NULL, js_db9_open, js_db9_close),
369 name[info.mode], info.port->port->name);
370
371 js_db9_init_corr(port->corr[i]);
372 }
373
374
375 return port;
376 }
377
378 #ifndef MODULE
379 int __init js_db9_setup(SETUP_PARAM)
380 {
381 int i;
382 SETUP_PARSE(2);
383 for (i = 0; i <= ints[0] && i < 2; i++) js_db9[i] = ints[i+1];
384 return 1;
385 }
386 int __init js_db9_setup_2(SETUP_PARAM)
387 {
388 int i;
389 SETUP_PARSE(2);
390 for (i = 0; i <= ints[0] && i < 2; i++) js_db9_2[i] = ints[i+1];
391 return 1;
392 }
393 int __init js_db9_setup_3(SETUP_PARAM)
394 {
395 int i;
396 SETUP_PARSE(2);
397 for (i = 0; i <= ints[0] && i < 2; i++) js_db9_3[i] = ints[i+1];
398 return 1;
399 }
400 __setup("js_db9=", js_db9_setup);
401 __setup("js_db9_2=", js_db9_setup_2);
402 __setup("js_db9_3=", js_db9_setup_3);
403 #endif
404
405 #ifdef MODULE
406 int init_module(void)
407 #else
408 int __init js_db9_init(void)
409 #endif
410 {
411 js_db9_port = js_db9_probe(js_db9, js_db9_port);
412 js_db9_port = js_db9_probe(js_db9_2, js_db9_port);
413 js_db9_port = js_db9_probe(js_db9_3, js_db9_port);
414
415 if (js_db9_port) return 0;
416
417 #ifdef MODULE
418 printk(KERN_WARNING "joy-db9: no joysticks specified\n");
419 #endif
420 return -ENODEV;
421 }
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