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Linux-2.6.12-rc2
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / input / joystick / gamecon.c
blob8732f52bdd0889fb65f56bbdfca09d07f7ff25a5
1 /*
2 * NES, SNES, N64, MultiSystem, PSX gamepad driver for Linux
3 *
4 * Copyright (c) 1999-2004 Vojtech Pavlik <vojtech@suse.cz>
5 * Copyright (c) 2004 Peter Nelson <rufus-kernel@hackish.org>
6 *
7 * Based on the work of:
8 * Andree Borrmann John Dahlstrom
9 * David Kuder Nathan Hand
10 */
11
12 /*
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 *
27 * Should you need to contact me, the author, you can do so either by
28 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
29 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
30 */
31
32 #include <linux/kernel.h>
33 #include <linux/delay.h>
34 #include <linux/module.h>
35 #include <linux/moduleparam.h>
36 #include <linux/init.h>
37 #include <linux/parport.h>
38 #include <linux/input.h>
39
40 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
41 MODULE_DESCRIPTION("NES, SNES, N64, MultiSystem, PSX gamepad driver");
42 MODULE_LICENSE("GPL");
43
44 static int gc[] __initdata = { -1, 0, 0, 0, 0, 0 };
45 static int gc_nargs __initdata = 0;
46 module_param_array_named(map, gc, int, &gc_nargs, 0);
47 MODULE_PARM_DESC(map, "Describers first set of devices (<parport#>,<pad1>,<pad2>,..<pad5>)");
48
49 static int gc_2[] __initdata = { -1, 0, 0, 0, 0, 0 };
50 static int gc_nargs_2 __initdata = 0;
51 module_param_array_named(map2, gc_2, int, &gc_nargs_2, 0);
52 MODULE_PARM_DESC(map2, "Describers second set of devices");
53
54 static int gc_3[] __initdata = { -1, 0, 0, 0, 0, 0 };
55 static int gc_nargs_3 __initdata = 0;
56 module_param_array_named(map3, gc_3, int, &gc_nargs_3, 0);
57 MODULE_PARM_DESC(map3, "Describers third set of devices");
58
59 __obsolete_setup("gc=");
60 __obsolete_setup("gc_2=");
61 __obsolete_setup("gc_3=");
62
63 /* see also gs_psx_delay parameter in PSX support section */
64
65 #define GC_SNES 1
66 #define GC_NES 2
67 #define GC_NES4 3
68 #define GC_MULTI 4
69 #define GC_MULTI2 5
70 #define GC_N64 6
71 #define GC_PSX 7
72 #define GC_DDR 8
73
74 #define GC_MAX 8
75
76 #define GC_REFRESH_TIME HZ/100
77
78 struct gc {
79 struct pardevice *pd;
80 struct input_dev dev[5];
81 struct timer_list timer;
82 unsigned char pads[GC_MAX + 1];
83 int used;
84 char phys[5][32];
85 };
86
87 static struct gc *gc_base[3];
88
89 static int gc_status_bit[] = { 0x40, 0x80, 0x20, 0x10, 0x08 };
90
91 static char *gc_names[] = { NULL, "SNES pad", "NES pad", "NES FourPort", "Multisystem joystick",
92 "Multisystem 2-button joystick", "N64 controller", "PSX controller",
93 "PSX DDR controller" };
94 /*
95 * N64 support.
96 */
97
98 static unsigned char gc_n64_bytes[] = { 0, 1, 13, 15, 14, 12, 10, 11, 2, 3 };
99 static short gc_n64_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_TRIGGER, BTN_START };
100
101 #define GC_N64_LENGTH 32 /* N64 bit length, not including stop bit */
102 #define GC_N64_REQUEST_LENGTH 37 /* transmit request sequence is 9 bits long */
103 #define GC_N64_DELAY 133 /* delay between transmit request, and response ready (us) */
104 #define GC_N64_REQUEST 0x1dd1111111ULL /* the request data command (encoded for 000000011) */
105 #define GC_N64_DWS 3 /* delay between write segments (required for sound playback because of ISA DMA) */
106 /* GC_N64_DWS > 24 is known to fail */
107 #define GC_N64_POWER_W 0xe2 /* power during write (transmit request) */
108 #define GC_N64_POWER_R 0xfd /* power during read */
109 #define GC_N64_OUT 0x1d /* output bits to the 4 pads */
110 /* Reading the main axes of any N64 pad is known to fail if the corresponding bit */
111 /* in GC_N64_OUT is pulled low on the output port (by any routine) for more */
112 /* than 123 us */
113 #define GC_N64_CLOCK 0x02 /* clock bits for read */
114
115 /*
116 * gc_n64_read_packet() reads an N64 packet.
117 * Each pad uses one bit per byte. So all pads connected to this port are read in parallel.
118 */
119
120 static void gc_n64_read_packet(struct gc *gc, unsigned char *data)
121 {
122 int i;
123 unsigned long flags;
124
125 /*
126 * Request the pad to transmit data
127 */
128
129 local_irq_save(flags);
130 for (i = 0; i < GC_N64_REQUEST_LENGTH; i++) {
131 parport_write_data(gc->pd->port, GC_N64_POWER_W | ((GC_N64_REQUEST >> i) & 1 ? GC_N64_OUT : 0));
132 udelay(GC_N64_DWS);
133 }
134 local_irq_restore(flags);
135
136 /*
137 * Wait for the pad response to be loaded into the 33-bit register of the adapter
138 */
139
140 udelay(GC_N64_DELAY);
141
142 /*
143 * Grab data (ignoring the last bit, which is a stop bit)
144 */
145
146 for (i = 0; i < GC_N64_LENGTH; i++) {
147 parport_write_data(gc->pd->port, GC_N64_POWER_R);
148 data[i] = parport_read_status(gc->pd->port);
149 parport_write_data(gc->pd->port, GC_N64_POWER_R | GC_N64_CLOCK);
150 }
151
152 /*
153 * We must wait 200 ms here for the controller to reinitialize before the next read request.
154 * No worries as long as gc_read is polled less frequently than this.
155 */
156
157 }
158
159 /*
160 * NES/SNES support.
161 */
162
163 #define GC_NES_DELAY 6 /* Delay between bits - 6us */
164 #define GC_NES_LENGTH 8 /* The NES pads use 8 bits of data */
165 #define GC_SNES_LENGTH 12 /* The SNES true length is 16, but the last 4 bits are unused */
166
167 #define GC_NES_POWER 0xfc
168 #define GC_NES_CLOCK 0x01
169 #define GC_NES_LATCH 0x02
170
171 static unsigned char gc_nes_bytes[] = { 0, 1, 2, 3 };
172 static unsigned char gc_snes_bytes[] = { 8, 0, 2, 3, 9, 1, 10, 11 };
173 static short gc_snes_btn[] = { BTN_A, BTN_B, BTN_SELECT, BTN_START, BTN_X, BTN_Y, BTN_TL, BTN_TR };
174
175 /*
176 * gc_nes_read_packet() reads a NES/SNES packet.
177 * Each pad uses one bit per byte. So all pads connected to
178 * this port are read in parallel.
179 */
180
181 static void gc_nes_read_packet(struct gc *gc, int length, unsigned char *data)
182 {
183 int i;
184
185 parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK | GC_NES_LATCH);
186 udelay(GC_NES_DELAY * 2);
187 parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK);
188
189 for (i = 0; i < length; i++) {
190 udelay(GC_NES_DELAY);
191 parport_write_data(gc->pd->port, GC_NES_POWER);
192 data[i] = parport_read_status(gc->pd->port) ^ 0x7f;
193 udelay(GC_NES_DELAY);
194 parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK);
195 }
196 }
197
198 /*
199 * Multisystem joystick support
200 */
201
202 #define GC_MULTI_LENGTH 5 /* Multi system joystick packet length is 5 */
203 #define GC_MULTI2_LENGTH 6 /* One more bit for one more button */
204
205 /*
206 * gc_multi_read_packet() reads a Multisystem joystick packet.
207 */
208
209 static void gc_multi_read_packet(struct gc *gc, int length, unsigned char *data)
210 {
211 int i;
212
213 for (i = 0; i < length; i++) {
214 parport_write_data(gc->pd->port, ~(1 << i));
215 data[i] = parport_read_status(gc->pd->port) ^ 0x7f;
216 }
217 }
218
219 /*
220 * PSX support
221 *
222 * See documentation at:
223 * http://www.dim.com/~mackys/psxmemcard/ps-eng2.txt
224 * http://www.gamesx.com/controldata/psxcont/psxcont.htm
225 * ftp://milano.usal.es/pablo/
226 *
227 */
228
229 #define GC_PSX_DELAY 25 /* 25 usec */
230 #define GC_PSX_LENGTH 8 /* talk to the controller in bits */
231 #define GC_PSX_BYTES 6 /* the maximum number of bytes to read off the controller */
232
233 #define GC_PSX_MOUSE 1 /* Mouse */
234 #define GC_PSX_NEGCON 2 /* NegCon */
235 #define GC_PSX_NORMAL 4 /* Digital / Analog or Rumble in Digital mode */
236 #define GC_PSX_ANALOG 5 /* Analog in Analog mode / Rumble in Green mode */
237 #define GC_PSX_RUMBLE 7 /* Rumble in Red mode */
238
239 #define GC_PSX_CLOCK 0x04 /* Pin 4 */
240 #define GC_PSX_COMMAND 0x01 /* Pin 2 */
241 #define GC_PSX_POWER 0xf8 /* Pins 5-9 */
242 #define GC_PSX_SELECT 0x02 /* Pin 3 */
243
244 #define GC_PSX_ID(x) ((x) >> 4) /* High nibble is device type */
245 #define GC_PSX_LEN(x) (((x) & 0xf) << 1) /* Low nibble is length in bytes/2 */
246
247 static int gc_psx_delay = GC_PSX_DELAY;
248 module_param_named(psx_delay, gc_psx_delay, uint, 0);
249 MODULE_PARM_DESC(psx_delay, "Delay when accessing Sony PSX controller (usecs)");
250
251 __obsolete_setup("gc_psx_delay=");
252
253 static short gc_psx_abs[] = { ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_HAT0X, ABS_HAT0Y };
254 static short gc_psx_btn[] = { BTN_TL, BTN_TR, BTN_TL2, BTN_TR2, BTN_A, BTN_B, BTN_X, BTN_Y,
255 BTN_START, BTN_SELECT, BTN_THUMBL, BTN_THUMBR };
256 static short gc_psx_ddr_btn[] = { BTN_0, BTN_1, BTN_2, BTN_3 };
257
258 /*
259 * gc_psx_command() writes 8bit command and reads 8bit data from
260 * the psx pad.
261 */
262
263 static void gc_psx_command(struct gc *gc, int b, unsigned char data[5])
264 {
265 int i, j, cmd, read;
266 for (i = 0; i < 5; i++)
267 data[i] = 0;
268
269 for (i = 0; i < GC_PSX_LENGTH; i++, b >>= 1) {
270 cmd = (b & 1) ? GC_PSX_COMMAND : 0;
271 parport_write_data(gc->pd->port, cmd | GC_PSX_POWER);
272 udelay(gc_psx_delay);
273 read = parport_read_status(gc->pd->port) ^ 0x80;
274 for (j = 0; j < 5; j++)
275 data[j] |= (read & gc_status_bit[j] & (gc->pads[GC_PSX] | gc->pads[GC_DDR])) ? (1 << i) : 0;
276 parport_write_data(gc->pd->port, cmd | GC_PSX_CLOCK | GC_PSX_POWER);
277 udelay(gc_psx_delay);
278 }
279 }
280
281 /*
282 * gc_psx_read_packet() reads a whole psx packet and returns
283 * device identifier code.
284 */
285
286 static void gc_psx_read_packet(struct gc *gc, unsigned char data[5][GC_PSX_BYTES], unsigned char id[5])
287 {
288 int i, j, max_len = 0;
289 unsigned long flags;
290 unsigned char data2[5];
291
292 parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER); /* Select pad */
293 udelay(gc_psx_delay);
294 parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_POWER); /* Deselect, begin command */
295 udelay(gc_psx_delay);
296
297 local_irq_save(flags);
298
299 gc_psx_command(gc, 0x01, data2); /* Access pad */
300 gc_psx_command(gc, 0x42, id); /* Get device ids */
301 gc_psx_command(gc, 0, data2); /* Dump status */
302
303 for (i =0; i < 5; i++) /* Find the longest pad */
304 if((gc_status_bit[i] & (gc->pads[GC_PSX] | gc->pads[GC_DDR]))
305 && (GC_PSX_LEN(id[i]) > max_len)
306 && (GC_PSX_LEN(id[i]) <= GC_PSX_BYTES))
307 max_len = GC_PSX_LEN(id[i]);
308
309 for (i = 0; i < max_len; i++) { /* Read in all the data */
310 gc_psx_command(gc, 0, data2);
311 for (j = 0; j < 5; j++)
312 data[j][i] = data2[j];
313 }
314
315 local_irq_restore(flags);
316
317 parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER);
318
319 for(i = 0; i < 5; i++) /* Set id's to the real value */
320 id[i] = GC_PSX_ID(id[i]);
321 }
322
323 /*
324 * gc_timer() reads and analyzes console pads data.
325 */
326
327 #define GC_MAX_LENGTH GC_N64_LENGTH
328
329 static void gc_timer(unsigned long private)
330 {
331 struct gc *gc = (void *) private;
332 struct input_dev *dev = gc->dev;
333 unsigned char data[GC_MAX_LENGTH];
334 unsigned char data_psx[5][GC_PSX_BYTES];
335 int i, j, s;
336
337 /*
338 * N64 pads - must be read first, any read confuses them for 200 us
339 */
340
341 if (gc->pads[GC_N64]) {
342
343 gc_n64_read_packet(gc, data);
344
345 for (i = 0; i < 5; i++) {
346
347 s = gc_status_bit[i];
348
349 if (s & gc->pads[GC_N64] & ~(data[8] | data[9])) {
350
351 signed char axes[2];
352 axes[0] = axes[1] = 0;
353
354 for (j = 0; j < 8; j++) {
355 if (data[23 - j] & s) axes[0] |= 1 << j;
356 if (data[31 - j] & s) axes[1] |= 1 << j;
357 }
358
359 input_report_abs(dev + i, ABS_X, axes[0]);
360 input_report_abs(dev + i, ABS_Y, -axes[1]);
361
362 input_report_abs(dev + i, ABS_HAT0X, !(s & data[6]) - !(s & data[7]));
363 input_report_abs(dev + i, ABS_HAT0Y, !(s & data[4]) - !(s & data[5]));
364
365 for (j = 0; j < 10; j++)
366 input_report_key(dev + i, gc_n64_btn[j], s & data[gc_n64_bytes[j]]);
367
368 input_sync(dev + i);
369 }
370 }
371 }
372
373 /*
374 * NES and SNES pads
375 */
376
377 if (gc->pads[GC_NES] || gc->pads[GC_SNES]) {
378
379 gc_nes_read_packet(gc, gc->pads[GC_SNES] ? GC_SNES_LENGTH : GC_NES_LENGTH, data);
380
381 for (i = 0; i < 5; i++) {
382
383 s = gc_status_bit[i];
384
385 if (s & (gc->pads[GC_NES] | gc->pads[GC_SNES])) {
386 input_report_abs(dev + i, ABS_X, !(s & data[6]) - !(s & data[7]));
387 input_report_abs(dev + i, ABS_Y, !(s & data[4]) - !(s & data[5]));
388 }
389
390 if (s & gc->pads[GC_NES])
391 for (j = 0; j < 4; j++)
392 input_report_key(dev + i, gc_snes_btn[j], s & data[gc_nes_bytes[j]]);
393
394 if (s & gc->pads[GC_SNES])
395 for (j = 0; j < 8; j++)
396 input_report_key(dev + i, gc_snes_btn[j], s & data[gc_snes_bytes[j]]);
397
398 input_sync(dev + i);
399 }
400 }
401
402 /*
403 * Multi and Multi2 joysticks
404 */
405
406 if (gc->pads[GC_MULTI] || gc->pads[GC_MULTI2]) {
407
408 gc_multi_read_packet(gc, gc->pads[GC_MULTI2] ? GC_MULTI2_LENGTH : GC_MULTI_LENGTH, data);
409
410 for (i = 0; i < 5; i++) {
411
412 s = gc_status_bit[i];
413
414 if (s & (gc->pads[GC_MULTI] | gc->pads[GC_MULTI2])) {
415 input_report_abs(dev + i, ABS_X, !(s & data[2]) - !(s & data[3]));
416 input_report_abs(dev + i, ABS_Y, !(s & data[0]) - !(s & data[1]));
417 input_report_key(dev + i, BTN_TRIGGER, s & data[4]);
418 }
419
420 if (s & gc->pads[GC_MULTI2])
421 input_report_key(dev + i, BTN_THUMB, s & data[5]);
422
423 input_sync(dev + i);
424 }
425 }
426
427 /*
428 * PSX controllers
429 */
430
431 if (gc->pads[GC_PSX] || gc->pads[GC_DDR]) {
432
433 gc_psx_read_packet(gc, data_psx, data);
434
435 for (i = 0; i < 5; i++) {
436 switch (data[i]) {
437
438 case GC_PSX_RUMBLE:
439
440 input_report_key(dev + i, BTN_THUMBL, ~data_psx[i][0] & 0x04);
441 input_report_key(dev + i, BTN_THUMBR, ~data_psx[i][0] & 0x02);
442
443 case GC_PSX_NEGCON:
444 case GC_PSX_ANALOG:
445
446 if(gc->pads[GC_DDR] & gc_status_bit[i]) {
447 for(j = 0; j < 4; j++)
448 input_report_key(dev + i, gc_psx_ddr_btn[j], ~data_psx[i][0] & (0x10 << j));
449 } else {
450 for (j = 0; j < 4; j++)
451 input_report_abs(dev + i, gc_psx_abs[j+2], data_psx[i][j + 2]);
452
453 input_report_abs(dev + i, ABS_X, 128 + !(data_psx[i][0] & 0x20) * 127 - !(data_psx[i][0] & 0x80) * 128);
454 input_report_abs(dev + i, ABS_Y, 128 + !(data_psx[i][0] & 0x40) * 127 - !(data_psx[i][0] & 0x10) * 128);
455 }
456
457 for (j = 0; j < 8; j++)
458 input_report_key(dev + i, gc_psx_btn[j], ~data_psx[i][1] & (1 << j));
459
460 input_report_key(dev + i, BTN_START, ~data_psx[i][0] & 0x08);
461 input_report_key(dev + i, BTN_SELECT, ~data_psx[i][0] & 0x01);
462
463 input_sync(dev + i);
464
465 break;
466
467 case GC_PSX_NORMAL:
468 if(gc->pads[GC_DDR] & gc_status_bit[i]) {
469 for(j = 0; j < 4; j++)
470 input_report_key(dev + i, gc_psx_ddr_btn[j], ~data_psx[i][0] & (0x10 << j));
471 } else {
472 input_report_abs(dev + i, ABS_X, 128 + !(data_psx[i][0] & 0x20) * 127 - !(data_psx[i][0] & 0x80) * 128);
473 input_report_abs(dev + i, ABS_Y, 128 + !(data_psx[i][0] & 0x40) * 127 - !(data_psx[i][0] & 0x10) * 128);
474
475 /* for some reason if the extra axes are left unset they drift */
476 /* for (j = 0; j < 4; j++)
477 input_report_abs(dev + i, gc_psx_abs[j+2], 128);
478 * This needs to be debugged properly,
479 * maybe fuzz processing needs to be done in input_sync()
480 * --vojtech
481 */
482 }
483
484 for (j = 0; j < 8; j++)
485 input_report_key(dev + i, gc_psx_btn[j], ~data_psx[i][1] & (1 << j));
486
487 input_report_key(dev + i, BTN_START, ~data_psx[i][0] & 0x08);
488 input_report_key(dev + i, BTN_SELECT, ~data_psx[i][0] & 0x01);
489
490 input_sync(dev + i);
491
492 break;
493
494 case 0: /* not a pad, ignore */
495 break;
496 }
497 }
498 }
499
500 mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME);
501 }
502
503 static int gc_open(struct input_dev *dev)
504 {
505 struct gc *gc = dev->private;
506 if (!gc->used++) {
507 parport_claim(gc->pd);
508 parport_write_control(gc->pd->port, 0x04);
509 mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME);
510 }
511 return 0;
512 }
513
514 static void gc_close(struct input_dev *dev)
515 {
516 struct gc *gc = dev->private;
517 if (!--gc->used) {
518 del_timer(&gc->timer);
519 parport_write_control(gc->pd->port, 0x00);
520 parport_release(gc->pd);
521 }
522 }
523
524 static struct gc __init *gc_probe(int *config, int nargs)
525 {
526 struct gc *gc;
527 struct parport *pp;
528 int i, j;
529
530 if (config[0] < 0)
531 return NULL;
532
533 if (nargs < 2) {
534 printk(KERN_ERR "gamecon.c: at least one device must be specified\n");
535 return NULL;
536 }
537
538 pp = parport_find_number(config[0]);
539
540 if (!pp) {
541 printk(KERN_ERR "gamecon.c: no such parport\n");
542 return NULL;
543 }
544
545 if (!(gc = kmalloc(sizeof(struct gc), GFP_KERNEL))) {
546 parport_put_port(pp);
547 return NULL;
548 }
549 memset(gc, 0, sizeof(struct gc));
550
551 gc->pd = parport_register_device(pp, "gamecon", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
552
553 parport_put_port(pp);
554
555 if (!gc->pd) {
556 printk(KERN_ERR "gamecon.c: parport busy already - lp.o loaded?\n");
557 kfree(gc);
558 return NULL;
559 }
560
561 parport_claim(gc->pd);
562
563 init_timer(&gc->timer);
564 gc->timer.data = (long) gc;
565 gc->timer.function = gc_timer;
566
567 for (i = 0; i < nargs - 1; i++) {
568
569 if (!config[i + 1])
570 continue;
571
572 if (config[i + 1] < 1 || config[i + 1] > GC_MAX) {
573 printk(KERN_WARNING "gamecon.c: Pad type %d unknown\n", config[i + 1]);
574 continue;
575 }
576
577 gc->dev[i].private = gc;
578 gc->dev[i].open = gc_open;
579 gc->dev[i].close = gc_close;
580
581 gc->dev[i].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
582
583 for (j = 0; j < 2; j++) {
584 set_bit(ABS_X + j, gc->dev[i].absbit);
585 gc->dev[i].absmin[ABS_X + j] = -1;
586 gc->dev[i].absmax[ABS_X + j] = 1;
587 }
588
589 gc->pads[0] |= gc_status_bit[i];
590 gc->pads[config[i + 1]] |= gc_status_bit[i];
591
592 switch(config[i + 1]) {
593
594 case GC_N64:
595 for (j = 0; j < 10; j++)
596 set_bit(gc_n64_btn[j], gc->dev[i].keybit);
597
598 for (j = 0; j < 2; j++) {
599 set_bit(ABS_X + j, gc->dev[i].absbit);
600 gc->dev[i].absmin[ABS_X + j] = -127;
601 gc->dev[i].absmax[ABS_X + j] = 126;
602 gc->dev[i].absflat[ABS_X + j] = 2;
603 set_bit(ABS_HAT0X + j, gc->dev[i].absbit);
604 gc->dev[i].absmin[ABS_HAT0X + j] = -1;
605 gc->dev[i].absmax[ABS_HAT0X + j] = 1;
606 }
607
608 break;
609
610 case GC_SNES:
611 for (j = 4; j < 8; j++)
612 set_bit(gc_snes_btn[j], gc->dev[i].keybit);
613 case GC_NES:
614 for (j = 0; j < 4; j++)
615 set_bit(gc_snes_btn[j], gc->dev[i].keybit);
616 break;
617
618 case GC_MULTI2:
619 set_bit(BTN_THUMB, gc->dev[i].keybit);
620 case GC_MULTI:
621 set_bit(BTN_TRIGGER, gc->dev[i].keybit);
622 break;
623
624 case GC_PSX:
625 case GC_DDR:
626 if(config[i + 1] == GC_DDR) {
627 for (j = 0; j < 4; j++)
628 set_bit(gc_psx_ddr_btn[j], gc->dev[i].keybit);
629 } else {
630 for (j = 0; j < 6; j++) {
631 set_bit(gc_psx_abs[j], gc->dev[i].absbit);
632 gc->dev[i].absmin[gc_psx_abs[j]] = 4;
633 gc->dev[i].absmax[gc_psx_abs[j]] = 252;
634 gc->dev[i].absflat[gc_psx_abs[j]] = 2;
635 }
636 }
637
638 for (j = 0; j < 12; j++)
639 set_bit(gc_psx_btn[j], gc->dev[i].keybit);
640
641 break;
642 }
643
644 sprintf(gc->phys[i], "%s/input%d", gc->pd->port->name, i);
645
646 gc->dev[i].name = gc_names[config[i + 1]];
647 gc->dev[i].phys = gc->phys[i];
648 gc->dev[i].id.bustype = BUS_PARPORT;
649 gc->dev[i].id.vendor = 0x0001;
650 gc->dev[i].id.product = config[i + 1];
651 gc->dev[i].id.version = 0x0100;
652 }
653
654 parport_release(gc->pd);
655
656 if (!gc->pads[0]) {
657 parport_unregister_device(gc->pd);
658 kfree(gc);
659 return NULL;
660 }
661
662 for (i = 0; i < 5; i++)
663 if (gc->pads[0] & gc_status_bit[i]) {
664 input_register_device(gc->dev + i);
665 printk(KERN_INFO "input: %s on %s\n", gc->dev[i].name, gc->pd->port->name);
666 }
667
668 return gc;
669 }
670
671 static int __init gc_init(void)
672 {
673 gc_base[0] = gc_probe(gc, gc_nargs);
674 gc_base[1] = gc_probe(gc_2, gc_nargs_2);
675 gc_base[2] = gc_probe(gc_3, gc_nargs_3);
676
677 if (gc_base[0] || gc_base[1] || gc_base[2])
678 return 0;
679
680 return -ENODEV;
681 }
682
683 static void __exit gc_exit(void)
684 {
685 int i, j;
686
687 for (i = 0; i < 3; i++)
688 if (gc_base[i]) {
689 for (j = 0; j < 5; j++)
690 if (gc_base[i]->pads[0] & gc_status_bit[j])
691 input_unregister_device(gc_base[i]->dev + j);
692 parport_unregister_device(gc_base[i]->pd);
693 }
694 }
695
696 module_init(gc_init);
697 module_exit(gc_exit);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree