[PATCH] input: convert kcalloc to kzalloc
[linux-3.10.git] / drivers / input / joystick / gamecon.c
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         struct semaphore sem;
85         char phys[5][32];
86 };
87
88 static struct gc *gc_base[3];
89
90 static int gc_status_bit[] = { 0x40, 0x80, 0x20, 0x10, 0x08 };
91
92 static char *gc_names[] = { NULL, "SNES pad", "NES pad", "NES FourPort", "Multisystem joystick",
93                                 "Multisystem 2-button joystick", "N64 controller", "PSX controller",
94                                 "PSX DDR controller" };
95 /*
96  * N64 support.
97  */
98
99 static unsigned char gc_n64_bytes[] = { 0, 1, 13, 15, 14, 12, 10, 11, 2, 3 };
100 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 };
101
102 #define GC_N64_LENGTH           32              /* N64 bit length, not including stop bit */
103 #define GC_N64_REQUEST_LENGTH   37              /* transmit request sequence is 9 bits long */
104 #define GC_N64_DELAY            133             /* delay between transmit request, and response ready (us) */
105 #define GC_N64_REQUEST          0x1dd1111111ULL /* the request data command (encoded for 000000011) */
106 #define GC_N64_DWS              3               /* delay between write segments (required for sound playback because of ISA DMA) */
107                                                 /* GC_N64_DWS > 24 is known to fail */
108 #define GC_N64_POWER_W          0xe2            /* power during write (transmit request) */
109 #define GC_N64_POWER_R          0xfd            /* power during read */
110 #define GC_N64_OUT              0x1d            /* output bits to the 4 pads */
111                                                 /* Reading the main axes of any N64 pad is known to fail if the corresponding bit */
112                                                 /* in GC_N64_OUT is pulled low on the output port (by any routine) for more */
113                                                 /* than 123 us */
114 #define GC_N64_CLOCK            0x02            /* clock bits for read */
115
116 /*
117  * gc_n64_read_packet() reads an N64 packet.
118  * Each pad uses one bit per byte. So all pads connected to this port are read in parallel.
119  */
120
121 static void gc_n64_read_packet(struct gc *gc, unsigned char *data)
122 {
123         int i;
124         unsigned long flags;
125
126 /*
127  * Request the pad to transmit data
128  */
129
130         local_irq_save(flags);
131         for (i = 0; i < GC_N64_REQUEST_LENGTH; i++) {
132                 parport_write_data(gc->pd->port, GC_N64_POWER_W | ((GC_N64_REQUEST >> i) & 1 ? GC_N64_OUT : 0));
133                 udelay(GC_N64_DWS);
134         }
135         local_irq_restore(flags);
136
137 /*
138  * Wait for the pad response to be loaded into the 33-bit register of the adapter
139  */
140
141         udelay(GC_N64_DELAY);
142
143 /*
144  * Grab data (ignoring the last bit, which is a stop bit)
145  */
146
147         for (i = 0; i < GC_N64_LENGTH; i++) {
148                 parport_write_data(gc->pd->port, GC_N64_POWER_R);
149                 data[i] = parport_read_status(gc->pd->port);
150                 parport_write_data(gc->pd->port, GC_N64_POWER_R | GC_N64_CLOCK);
151          }
152
153 /*
154  * We must wait 200 ms here for the controller to reinitialize before the next read request.
155  * No worries as long as gc_read is polled less frequently than this.
156  */
157
158 }
159
160 /*
161  * NES/SNES support.
162  */
163
164 #define GC_NES_DELAY    6       /* Delay between bits - 6us */
165 #define GC_NES_LENGTH   8       /* The NES pads use 8 bits of data */
166 #define GC_SNES_LENGTH  12      /* The SNES true length is 16, but the last 4 bits are unused */
167
168 #define GC_NES_POWER    0xfc
169 #define GC_NES_CLOCK    0x01
170 #define GC_NES_LATCH    0x02
171
172 static unsigned char gc_nes_bytes[] = { 0, 1, 2, 3 };
173 static unsigned char gc_snes_bytes[] = { 8, 0, 2, 3, 9, 1, 10, 11 };
174 static short gc_snes_btn[] = { BTN_A, BTN_B, BTN_SELECT, BTN_START, BTN_X, BTN_Y, BTN_TL, BTN_TR };
175
176 /*
177  * gc_nes_read_packet() reads a NES/SNES packet.
178  * Each pad uses one bit per byte. So all pads connected to
179  * this port are read in parallel.
180  */
181
182 static void gc_nes_read_packet(struct gc *gc, int length, unsigned char *data)
183 {
184         int i;
185
186         parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK | GC_NES_LATCH);
187         udelay(GC_NES_DELAY * 2);
188         parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK);
189
190         for (i = 0; i < length; i++) {
191                 udelay(GC_NES_DELAY);
192                 parport_write_data(gc->pd->port, GC_NES_POWER);
193                 data[i] = parport_read_status(gc->pd->port) ^ 0x7f;
194                 udelay(GC_NES_DELAY);
195                 parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK);
196         }
197 }
198
199 /*
200  * Multisystem joystick support
201  */
202
203 #define GC_MULTI_LENGTH         5       /* Multi system joystick packet length is 5 */
204 #define GC_MULTI2_LENGTH        6       /* One more bit for one more button */
205
206 /*
207  * gc_multi_read_packet() reads a Multisystem joystick packet.
208  */
209
210 static void gc_multi_read_packet(struct gc *gc, int length, unsigned char *data)
211 {
212         int i;
213
214         for (i = 0; i < length; i++) {
215                 parport_write_data(gc->pd->port, ~(1 << i));
216                 data[i] = parport_read_status(gc->pd->port) ^ 0x7f;
217         }
218 }
219
220 /*
221  * PSX support
222  *
223  * See documentation at:
224  *      http://www.dim.com/~mackys/psxmemcard/ps-eng2.txt
225  *      http://www.gamesx.com/controldata/psxcont/psxcont.htm
226  *      ftp://milano.usal.es/pablo/
227  *
228  */
229
230 #define GC_PSX_DELAY    25              /* 25 usec */
231 #define GC_PSX_LENGTH   8               /* talk to the controller in bits */
232 #define GC_PSX_BYTES    6               /* the maximum number of bytes to read off the controller */
233
234 #define GC_PSX_MOUSE    1               /* Mouse */
235 #define GC_PSX_NEGCON   2               /* NegCon */
236 #define GC_PSX_NORMAL   4               /* Digital / Analog or Rumble in Digital mode  */
237 #define GC_PSX_ANALOG   5               /* Analog in Analog mode / Rumble in Green mode */
238 #define GC_PSX_RUMBLE   7               /* Rumble in Red mode */
239
240 #define GC_PSX_CLOCK    0x04            /* Pin 4 */
241 #define GC_PSX_COMMAND  0x01            /* Pin 2 */
242 #define GC_PSX_POWER    0xf8            /* Pins 5-9 */
243 #define GC_PSX_SELECT   0x02            /* Pin 3 */
244
245 #define GC_PSX_ID(x)    ((x) >> 4)      /* High nibble is device type */
246 #define GC_PSX_LEN(x)   (((x) & 0xf) << 1)      /* Low nibble is length in bytes/2 */
247
248 static int gc_psx_delay = GC_PSX_DELAY;
249 module_param_named(psx_delay, gc_psx_delay, uint, 0);
250 MODULE_PARM_DESC(psx_delay, "Delay when accessing Sony PSX controller (usecs)");
251
252 __obsolete_setup("gc_psx_delay=");
253
254 static short gc_psx_abs[] = { ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_HAT0X, ABS_HAT0Y };
255 static short gc_psx_btn[] = { BTN_TL, BTN_TR, BTN_TL2, BTN_TR2, BTN_A, BTN_B, BTN_X, BTN_Y,
256                                 BTN_START, BTN_SELECT, BTN_THUMBL, BTN_THUMBR };
257 static short gc_psx_ddr_btn[] = { BTN_0, BTN_1, BTN_2, BTN_3 };
258
259 /*
260  * gc_psx_command() writes 8bit command and reads 8bit data from
261  * the psx pad.
262  */
263
264 static void gc_psx_command(struct gc *gc, int b, unsigned char data[5])
265 {
266         int i, j, cmd, read;
267         for (i = 0; i < 5; i++)
268                 data[i] = 0;
269
270         for (i = 0; i < GC_PSX_LENGTH; i++, b >>= 1) {
271                 cmd = (b & 1) ? GC_PSX_COMMAND : 0;
272                 parport_write_data(gc->pd->port, cmd | GC_PSX_POWER);
273                 udelay(gc_psx_delay);
274                 read = parport_read_status(gc->pd->port) ^ 0x80;
275                 for (j = 0; j < 5; j++)
276                         data[j] |= (read & gc_status_bit[j] & (gc->pads[GC_PSX] | gc->pads[GC_DDR])) ? (1 << i) : 0;
277                 parport_write_data(gc->pd->port, cmd | GC_PSX_CLOCK | GC_PSX_POWER);
278                 udelay(gc_psx_delay);
279         }
280 }
281
282 /*
283  * gc_psx_read_packet() reads a whole psx packet and returns
284  * device identifier code.
285  */
286
287 static void gc_psx_read_packet(struct gc *gc, unsigned char data[5][GC_PSX_BYTES], unsigned char id[5])
288 {
289         int i, j, max_len = 0;
290         unsigned long flags;
291         unsigned char data2[5];
292
293         parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER);  /* Select pad */
294         udelay(gc_psx_delay);
295         parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_POWER);                  /* Deselect, begin command */
296         udelay(gc_psx_delay);
297
298         local_irq_save(flags);
299
300         gc_psx_command(gc, 0x01, data2);                                                /* Access pad */
301         gc_psx_command(gc, 0x42, id);                                                   /* Get device ids */
302         gc_psx_command(gc, 0, data2);                                                   /* Dump status */
303
304         for (i =0; i < 5; i++)                                                          /* Find the longest pad */
305                 if((gc_status_bit[i] & (gc->pads[GC_PSX] | gc->pads[GC_DDR]))
306                         && (GC_PSX_LEN(id[i]) > max_len)
307                         && (GC_PSX_LEN(id[i]) <= GC_PSX_BYTES))
308                         max_len = GC_PSX_LEN(id[i]);
309
310         for (i = 0; i < max_len; i++) {                                         /* Read in all the data */
311                 gc_psx_command(gc, 0, data2);
312                 for (j = 0; j < 5; j++)
313                         data[j][i] = data2[j];
314         }
315
316         local_irq_restore(flags);
317
318         parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER);
319
320         for(i = 0; i < 5; i++)                                                          /* Set id's to the real value */
321                 id[i] = GC_PSX_ID(id[i]);
322 }
323
324 /*
325  * gc_timer() reads and analyzes console pads data.
326  */
327
328 #define GC_MAX_LENGTH GC_N64_LENGTH
329
330 static void gc_timer(unsigned long private)
331 {
332         struct gc *gc = (void *) private;
333         struct input_dev *dev = gc->dev;
334         unsigned char data[GC_MAX_LENGTH];
335         unsigned char data_psx[5][GC_PSX_BYTES];
336         int i, j, s;
337
338 /*
339  * N64 pads - must be read first, any read confuses them for 200 us
340  */
341
342         if (gc->pads[GC_N64]) {
343
344                 gc_n64_read_packet(gc, data);
345
346                 for (i = 0; i < 5; i++) {
347
348                         s = gc_status_bit[i];
349
350                         if (s & gc->pads[GC_N64] & ~(data[8] | data[9])) {
351
352                                 signed char axes[2];
353                                 axes[0] = axes[1] = 0;
354
355                                 for (j = 0; j < 8; j++) {
356                                         if (data[23 - j] & s) axes[0] |= 1 << j;
357                                         if (data[31 - j] & s) axes[1] |= 1 << j;
358                                 }
359
360                                 input_report_abs(dev + i, ABS_X,  axes[0]);
361                                 input_report_abs(dev + i, ABS_Y, -axes[1]);
362
363                                 input_report_abs(dev + i, ABS_HAT0X, !(s & data[6]) - !(s & data[7]));
364                                 input_report_abs(dev + i, ABS_HAT0Y, !(s & data[4]) - !(s & data[5]));
365
366                                 for (j = 0; j < 10; j++)
367                                         input_report_key(dev + i, gc_n64_btn[j], s & data[gc_n64_bytes[j]]);
368
369                                 input_sync(dev + i);
370                         }
371                 }
372         }
373
374 /*
375  * NES and SNES pads
376  */
377
378         if (gc->pads[GC_NES] || gc->pads[GC_SNES]) {
379
380                 gc_nes_read_packet(gc, gc->pads[GC_SNES] ? GC_SNES_LENGTH : GC_NES_LENGTH, data);
381
382                 for (i = 0; i < 5; i++) {
383
384                         s = gc_status_bit[i];
385
386                         if (s & (gc->pads[GC_NES] | gc->pads[GC_SNES])) {
387                                 input_report_abs(dev + i, ABS_X, !(s & data[6]) - !(s & data[7]));
388                                 input_report_abs(dev + i, ABS_Y, !(s & data[4]) - !(s & data[5]));
389                         }
390
391                         if (s & gc->pads[GC_NES])
392                                 for (j = 0; j < 4; j++)
393                                         input_report_key(dev + i, gc_snes_btn[j], s & data[gc_nes_bytes[j]]);
394
395                         if (s & gc->pads[GC_SNES])
396                                 for (j = 0; j < 8; j++)
397                                         input_report_key(dev + i, gc_snes_btn[j], s & data[gc_snes_bytes[j]]);
398
399                         input_sync(dev + i);
400                 }
401         }
402
403 /*
404  * Multi and Multi2 joysticks
405  */
406
407         if (gc->pads[GC_MULTI] || gc->pads[GC_MULTI2]) {
408
409                 gc_multi_read_packet(gc, gc->pads[GC_MULTI2] ? GC_MULTI2_LENGTH : GC_MULTI_LENGTH, data);
410
411                 for (i = 0; i < 5; i++) {
412
413                         s = gc_status_bit[i];
414
415                         if (s & (gc->pads[GC_MULTI] | gc->pads[GC_MULTI2])) {
416                                 input_report_abs(dev + i, ABS_X,  !(s & data[2]) - !(s & data[3]));
417                                 input_report_abs(dev + i, ABS_Y,  !(s & data[0]) - !(s & data[1]));
418                                 input_report_key(dev + i, BTN_TRIGGER, s & data[4]);
419                         }
420
421                         if (s & gc->pads[GC_MULTI2])
422                                 input_report_key(dev + i, BTN_THUMB, s & data[5]);
423
424                         input_sync(dev + i);
425                 }
426         }
427
428 /*
429  * PSX controllers
430  */
431
432         if (gc->pads[GC_PSX] || gc->pads[GC_DDR]) {
433
434                 gc_psx_read_packet(gc, data_psx, data);
435
436                 for (i = 0; i < 5; i++) {
437                         switch (data[i]) {
438
439                                 case GC_PSX_RUMBLE:
440
441                                         input_report_key(dev + i, BTN_THUMBL, ~data_psx[i][0] & 0x04);
442                                         input_report_key(dev + i, BTN_THUMBR, ~data_psx[i][0] & 0x02);
443
444                                 case GC_PSX_NEGCON:
445                                 case GC_PSX_ANALOG:
446
447                                         if(gc->pads[GC_DDR] & gc_status_bit[i]) {
448                                                 for(j = 0; j < 4; j++)
449                                                         input_report_key(dev + i, gc_psx_ddr_btn[j], ~data_psx[i][0] & (0x10 << j));
450                                         } else {
451                                                 for (j = 0; j < 4; j++)
452                                                         input_report_abs(dev + i, gc_psx_abs[j+2], data_psx[i][j + 2]);
453
454                                                 input_report_abs(dev + i, ABS_X, 128 + !(data_psx[i][0] & 0x20) * 127 - !(data_psx[i][0] & 0x80) * 128);
455                                                 input_report_abs(dev + i, ABS_Y, 128 + !(data_psx[i][0] & 0x40) * 127 - !(data_psx[i][0] & 0x10) * 128);
456                                         }
457
458                                         for (j = 0; j < 8; j++)
459                                                 input_report_key(dev + i, gc_psx_btn[j], ~data_psx[i][1] & (1 << j));
460
461                                         input_report_key(dev + i, BTN_START,  ~data_psx[i][0] & 0x08);
462                                         input_report_key(dev + i, BTN_SELECT, ~data_psx[i][0] & 0x01);
463
464                                         input_sync(dev + i);
465
466                                         break;
467
468                                 case GC_PSX_NORMAL:
469                                         if(gc->pads[GC_DDR] & gc_status_bit[i]) {
470                                                 for(j = 0; j < 4; j++)
471                                                         input_report_key(dev + i, gc_psx_ddr_btn[j], ~data_psx[i][0] & (0x10 << j));
472                                         } else {
473                                                 input_report_abs(dev + i, ABS_X, 128 + !(data_psx[i][0] & 0x20) * 127 - !(data_psx[i][0] & 0x80) * 128);
474                                                 input_report_abs(dev + i, ABS_Y, 128 + !(data_psx[i][0] & 0x40) * 127 - !(data_psx[i][0] & 0x10) * 128);
475
476                                                 /* for some reason if the extra axes are left unset they drift */
477                                                 /* for (j = 0; j < 4; j++)
478                                                         input_report_abs(dev + i, gc_psx_abs[j+2], 128);
479                                                  * This needs to be debugged properly,
480                                                  * maybe fuzz processing needs to be done in input_sync()
481                                                  *                               --vojtech
482                                                  */
483                                         }
484
485                                         for (j = 0; j < 8; j++)
486                                                 input_report_key(dev + i, gc_psx_btn[j], ~data_psx[i][1] & (1 << j));
487
488                                         input_report_key(dev + i, BTN_START,  ~data_psx[i][0] & 0x08);
489                                         input_report_key(dev + i, BTN_SELECT, ~data_psx[i][0] & 0x01);
490
491                                         input_sync(dev + i);
492
493                                         break;
494
495                                 case 0: /* not a pad, ignore */
496                                         break;
497                         }
498                 }
499         }
500
501         mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME);
502 }
503
504 static int gc_open(struct input_dev *dev)
505 {
506         struct gc *gc = dev->private;
507         int err;
508
509         err = down_interruptible(&gc->sem);
510         if (err)
511                 return err;
512
513         if (!gc->used++) {
514                 parport_claim(gc->pd);
515                 parport_write_control(gc->pd->port, 0x04);
516                 mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME);
517         }
518
519         up(&gc->sem);
520         return 0;
521 }
522
523 static void gc_close(struct input_dev *dev)
524 {
525         struct gc *gc = dev->private;
526
527         down(&gc->sem);
528         if (!--gc->used) {
529                 del_timer_sync(&gc->timer);
530                 parport_write_control(gc->pd->port, 0x00);
531                 parport_release(gc->pd);
532         }
533         up(&gc->sem);
534 }
535
536 static struct gc __init *gc_probe(int *config, int nargs)
537 {
538         struct gc *gc;
539         struct parport *pp;
540         int i, j;
541
542         if (config[0] < 0)
543                 return NULL;
544
545         if (nargs < 2) {
546                 printk(KERN_ERR "gamecon.c: at least one device must be specified\n");
547                 return NULL;
548         }
549
550         pp = parport_find_number(config[0]);
551
552         if (!pp) {
553                 printk(KERN_ERR "gamecon.c: no such parport\n");
554                 return NULL;
555         }
556
557         if (!(gc = kzalloc(sizeof(struct gc), GFP_KERNEL))) {
558                 parport_put_port(pp);
559                 return NULL;
560         }
561
562         init_MUTEX(&gc->sem);
563
564         gc->pd = parport_register_device(pp, "gamecon", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
565
566         parport_put_port(pp);
567
568         if (!gc->pd) {
569                 printk(KERN_ERR "gamecon.c: parport busy already - lp.o loaded?\n");
570                 kfree(gc);
571                 return NULL;
572         }
573
574         parport_claim(gc->pd);
575
576         init_timer(&gc->timer);
577         gc->timer.data = (long) gc;
578         gc->timer.function = gc_timer;
579
580         for (i = 0; i < nargs - 1; i++) {
581
582                 if (!config[i + 1])
583                         continue;
584
585                 if (config[i + 1] < 1 || config[i + 1] > GC_MAX) {
586                         printk(KERN_WARNING "gamecon.c: Pad type %d unknown\n", config[i + 1]);
587                         continue;
588                 }
589
590                 gc->dev[i].private = gc;
591                 gc->dev[i].open = gc_open;
592                 gc->dev[i].close = gc_close;
593
594                 gc->dev[i].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
595
596                 for (j = 0; j < 2; j++) {
597                         set_bit(ABS_X + j, gc->dev[i].absbit);
598                         gc->dev[i].absmin[ABS_X + j] = -1;
599                         gc->dev[i].absmax[ABS_X + j] =  1;
600                 }
601
602                 gc->pads[0] |= gc_status_bit[i];
603                 gc->pads[config[i + 1]] |= gc_status_bit[i];
604
605                 switch(config[i + 1]) {
606
607                         case GC_N64:
608                                 for (j = 0; j < 10; j++)
609                                         set_bit(gc_n64_btn[j], gc->dev[i].keybit);
610
611                                 for (j = 0; j < 2; j++) {
612                                         set_bit(ABS_X + j, gc->dev[i].absbit);
613                                         gc->dev[i].absmin[ABS_X + j] = -127;
614                                         gc->dev[i].absmax[ABS_X + j] =  126;
615                                         gc->dev[i].absflat[ABS_X + j] = 2;
616                                         set_bit(ABS_HAT0X + j, gc->dev[i].absbit);
617                                         gc->dev[i].absmin[ABS_HAT0X + j] = -1;
618                                         gc->dev[i].absmax[ABS_HAT0X + j] =  1;
619                                 }
620
621                                 break;
622
623                         case GC_SNES:
624                                 for (j = 4; j < 8; j++)
625                                         set_bit(gc_snes_btn[j], gc->dev[i].keybit);
626                         case GC_NES:
627                                 for (j = 0; j < 4; j++)
628                                         set_bit(gc_snes_btn[j], gc->dev[i].keybit);
629                                 break;
630
631                         case GC_MULTI2:
632                                 set_bit(BTN_THUMB, gc->dev[i].keybit);
633                         case GC_MULTI:
634                                 set_bit(BTN_TRIGGER, gc->dev[i].keybit);
635                                 break;
636
637                         case GC_PSX:
638                         case GC_DDR:
639                                 if(config[i + 1] == GC_DDR) {
640                                         for (j = 0; j < 4; j++)
641                                                 set_bit(gc_psx_ddr_btn[j], gc->dev[i].keybit);
642                                 } else {
643                                         for (j = 0; j < 6; j++) {
644                                                 set_bit(gc_psx_abs[j], gc->dev[i].absbit);
645                                                 gc->dev[i].absmin[gc_psx_abs[j]] = 4;
646                                                 gc->dev[i].absmax[gc_psx_abs[j]] = 252;
647                                                 gc->dev[i].absflat[gc_psx_abs[j]] = 2;
648                                         }
649                                 }
650
651                                 for (j = 0; j < 12; j++)
652                                         set_bit(gc_psx_btn[j], gc->dev[i].keybit);
653
654                                 break;
655                 }
656
657                 sprintf(gc->phys[i], "%s/input%d", gc->pd->port->name, i);
658
659                 gc->dev[i].name = gc_names[config[i + 1]];
660                 gc->dev[i].phys = gc->phys[i];
661                 gc->dev[i].id.bustype = BUS_PARPORT;
662                 gc->dev[i].id.vendor = 0x0001;
663                 gc->dev[i].id.product = config[i + 1];
664                 gc->dev[i].id.version = 0x0100;
665         }
666
667         parport_release(gc->pd);
668
669         if (!gc->pads[0]) {
670                 parport_unregister_device(gc->pd);
671                 kfree(gc);
672                 return NULL;
673         }
674
675         for (i = 0; i < 5; i++)
676                 if (gc->pads[0] & gc_status_bit[i]) {
677                         input_register_device(gc->dev + i);
678                         printk(KERN_INFO "input: %s on %s\n", gc->dev[i].name, gc->pd->port->name);
679                 }
680
681         return gc;
682 }
683
684 static int __init gc_init(void)
685 {
686         gc_base[0] = gc_probe(gc, gc_nargs);
687         gc_base[1] = gc_probe(gc_2, gc_nargs_2);
688         gc_base[2] = gc_probe(gc_3, gc_nargs_3);
689
690         if (gc_base[0] || gc_base[1] || gc_base[2])
691                 return 0;
692
693         return -ENODEV;
694 }
695
696 static void __exit gc_exit(void)
697 {
698         int i, j;
699
700         for (i = 0; i < 3; i++)
701                 if (gc_base[i]) {
702                         for (j = 0; j < 5; j++)
703                                 if (gc_base[i]->pads[0] & gc_status_bit[j])
704                                         input_unregister_device(gc_base[i]->dev + j);
705                         parport_unregister_device(gc_base[i]->pd);
706                 }
707 }
708
709 module_init(gc_init);
710 module_exit(gc_exit);