2 * NES, SNES, N64, MultiSystem, PSX gamepad driver for Linux
4 * Copyright (c) 1999-2004 Vojtech Pavlik <vojtech@suse.cz>
5 * Copyright (c) 2004 Peter Nelson <rufus-kernel@hackish.org>
7 * Based on the work of:
8 * Andree Borrmann John Dahlstrom
9 * David Kuder Nathan Hand
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
28 * Should you need to contact me, the author, you can do so either by
29 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
30 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
33 #include <linux/kernel.h>
34 #include <linux/delay.h>
35 #include <linux/module.h>
36 #include <linux/init.h>
37 #include <linux/parport.h>
38 #include <linux/input.h>
39 #include <linux/mutex.h>
41 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
42 MODULE_DESCRIPTION("NES, SNES, N64, MultiSystem, PSX gamepad driver");
43 MODULE_LICENSE("GPL");
45 #define GC_MAX_PORTS 3
46 #define GC_MAX_DEVICES 5
49 int args[GC_MAX_DEVICES + 1];
53 static struct gc_config gc_cfg[GC_MAX_PORTS] __initdata;
55 module_param_array_named(map, gc_cfg[0].args, int, &gc_cfg[0].nargs, 0);
56 MODULE_PARM_DESC(map, "Describes first set of devices (<parport#>,<pad1>,<pad2>,..<pad5>)");
57 module_param_array_named(map2, gc_cfg[1].args, int, &gc_cfg[1].nargs, 0);
58 MODULE_PARM_DESC(map2, "Describes second set of devices");
59 module_param_array_named(map3, gc_cfg[2].args, int, &gc_cfg[2].nargs, 0);
60 MODULE_PARM_DESC(map3, "Describes third set of devices");
62 /* see also gs_psx_delay parameter in PSX support section */
78 #define GC_REFRESH_TIME HZ/100
81 struct input_dev *dev;
88 struct gc_pad pads[GC_MAX_DEVICES];
89 struct input_dev *dev[GC_MAX_DEVICES];
90 struct timer_list timer;
91 int pad_count[GC_MAX];
100 static struct gc *gc_base[3];
102 static const int gc_status_bit[] = { 0x40, 0x80, 0x20, 0x10, 0x08 };
104 static const char *gc_names[] = {
105 NULL, "SNES pad", "NES pad", "NES FourPort", "Multisystem joystick",
106 "Multisystem 2-button joystick", "N64 controller", "PSX controller",
107 "PSX DDR controller", "SNES mouse"
114 static const unsigned char gc_n64_bytes[] = { 0, 1, 13, 15, 14, 12, 10, 11, 2, 3 };
115 static const short gc_n64_btn[] = {
116 BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z,
117 BTN_TL, BTN_TR, BTN_TRIGGER, BTN_START
120 #define GC_N64_LENGTH 32 /* N64 bit length, not including stop bit */
121 #define GC_N64_STOP_LENGTH 5 /* Length of encoded stop bit */
122 #define GC_N64_CMD_00 0x11111111UL
123 #define GC_N64_CMD_01 0xd1111111UL
124 #define GC_N64_CMD_03 0xdd111111UL
125 #define GC_N64_CMD_1b 0xdd1dd111UL
126 #define GC_N64_CMD_c0 0x111111ddUL
127 #define GC_N64_CMD_80 0x1111111dUL
128 #define GC_N64_STOP_BIT 0x1d /* Encoded stop bit */
129 #define GC_N64_REQUEST_DATA GC_N64_CMD_01 /* the request data command */
130 #define GC_N64_DELAY 133 /* delay between transmit request, and response ready (us) */
131 #define GC_N64_DWS 3 /* delay between write segments (required for sound playback because of ISA DMA) */
132 /* GC_N64_DWS > 24 is known to fail */
133 #define GC_N64_POWER_W 0xe2 /* power during write (transmit request) */
134 #define GC_N64_POWER_R 0xfd /* power during read */
135 #define GC_N64_OUT 0x1d /* output bits to the 4 pads */
136 /* Reading the main axes of any N64 pad is known to fail if the corresponding bit */
137 /* in GC_N64_OUT is pulled low on the output port (by any routine) for more */
139 #define GC_N64_CLOCK 0x02 /* clock bits for read */
142 * Used for rumble code.
145 /* Send encoded command */
146 static void gc_n64_send_command(struct gc *gc, unsigned long cmd,
147 unsigned char target)
149 struct parport *port = gc->pd->port;
152 for (i = 0; i < GC_N64_LENGTH; i++) {
153 unsigned char data = (cmd >> i) & 1 ? target : 0;
154 parport_write_data(port, GC_N64_POWER_W | data);
160 static void gc_n64_send_stop_bit(struct gc *gc, unsigned char target)
162 struct parport *port = gc->pd->port;
165 for (i = 0; i < GC_N64_STOP_LENGTH; i++) {
166 unsigned char data = (GC_N64_STOP_BIT >> i) & 1 ? target : 0;
167 parport_write_data(port, GC_N64_POWER_W | data);
173 * gc_n64_read_packet() reads an N64 packet.
174 * Each pad uses one bit per byte. So all pads connected to this port
175 * are read in parallel.
178 static void gc_n64_read_packet(struct gc *gc, unsigned char *data)
184 * Request the pad to transmit data
187 local_irq_save(flags);
188 gc_n64_send_command(gc, GC_N64_REQUEST_DATA, GC_N64_OUT);
189 gc_n64_send_stop_bit(gc, GC_N64_OUT);
190 local_irq_restore(flags);
193 * Wait for the pad response to be loaded into the 33-bit register
197 udelay(GC_N64_DELAY);
200 * Grab data (ignoring the last bit, which is a stop bit)
203 for (i = 0; i < GC_N64_LENGTH; i++) {
204 parport_write_data(gc->pd->port, GC_N64_POWER_R);
206 data[i] = parport_read_status(gc->pd->port);
207 parport_write_data(gc->pd->port, GC_N64_POWER_R | GC_N64_CLOCK);
211 * We must wait 200 ms here for the controller to reinitialize before
212 * the next read request. No worries as long as gc_read is polled less
213 * frequently than this.
218 static void gc_n64_process_packet(struct gc *gc)
220 unsigned char data[GC_N64_LENGTH];
221 struct input_dev *dev;
225 gc_n64_read_packet(gc, data);
227 for (i = 0; i < GC_MAX_DEVICES; i++) {
229 if (gc->pads[i].type != GC_N64)
232 dev = gc->pads[i].dev;
233 s = gc_status_bit[i];
235 if (s & ~(data[8] | data[9])) {
239 for (j = 0; j < 8; j++) {
240 if (data[23 - j] & s)
242 if (data[31 - j] & s)
246 input_report_abs(dev, ABS_X, x);
247 input_report_abs(dev, ABS_Y, -y);
249 input_report_abs(dev, ABS_HAT0X,
250 !(s & data[6]) - !(s & data[7]));
251 input_report_abs(dev, ABS_HAT0Y,
252 !(s & data[4]) - !(s & data[5]));
254 for (j = 0; j < 10; j++)
255 input_report_key(dev, gc_n64_btn[j],
256 s & data[gc_n64_bytes[j]]);
263 static int gc_n64_play_effect(struct input_dev *dev, void *data,
264 struct ff_effect *effect)
268 struct gc *gc = input_get_drvdata(dev);
269 struct gc_subdev *sdev = data;
270 unsigned char target = 1 << sdev->idx; /* select desired pin */
272 if (effect->type == FF_RUMBLE) {
273 struct ff_rumble_effect *rumble = &effect->u.rumble;
275 rumble->strong_magnitude || rumble->weak_magnitude ?
276 GC_N64_CMD_01 : GC_N64_CMD_00;
278 local_irq_save(flags);
280 /* Init Rumble - 0x03, 0x80, 0x01, (34)0x80 */
281 gc_n64_send_command(gc, GC_N64_CMD_03, target);
282 gc_n64_send_command(gc, GC_N64_CMD_80, target);
283 gc_n64_send_command(gc, GC_N64_CMD_01, target);
284 for (i = 0; i < 32; i++)
285 gc_n64_send_command(gc, GC_N64_CMD_80, target);
286 gc_n64_send_stop_bit(gc, target);
288 udelay(GC_N64_DELAY);
290 /* Now start or stop it - 0x03, 0xc0, 0zx1b, (32)0x01/0x00 */
291 gc_n64_send_command(gc, GC_N64_CMD_03, target);
292 gc_n64_send_command(gc, GC_N64_CMD_c0, target);
293 gc_n64_send_command(gc, GC_N64_CMD_1b, target);
294 for (i = 0; i < 32; i++)
295 gc_n64_send_command(gc, cmd, target);
296 gc_n64_send_stop_bit(gc, target);
298 local_irq_restore(flags);
305 static int __init gc_n64_init_ff(struct input_dev *dev, int i)
307 struct gc_subdev *sdev;
310 sdev = kmalloc(sizeof(*sdev), GFP_KERNEL);
316 input_set_capability(dev, EV_FF, FF_RUMBLE);
318 err = input_ff_create_memless(dev, sdev, gc_n64_play_effect);
331 #define GC_NES_DELAY 6 /* Delay between bits - 6us */
332 #define GC_NES_LENGTH 8 /* The NES pads use 8 bits of data */
333 #define GC_SNES_LENGTH 12 /* The SNES true length is 16, but the
334 last 4 bits are unused */
335 #define GC_SNESMOUSE_LENGTH 32 /* The SNES mouse uses 32 bits, the first
336 16 bits are equivalent to a gamepad */
338 #define GC_NES_POWER 0xfc
339 #define GC_NES_CLOCK 0x01
340 #define GC_NES_LATCH 0x02
342 static const unsigned char gc_nes_bytes[] = { 0, 1, 2, 3 };
343 static const unsigned char gc_snes_bytes[] = { 8, 0, 2, 3, 9, 1, 10, 11 };
344 static const short gc_snes_btn[] = {
345 BTN_A, BTN_B, BTN_SELECT, BTN_START, BTN_X, BTN_Y, BTN_TL, BTN_TR
349 * gc_nes_read_packet() reads a NES/SNES packet.
350 * Each pad uses one bit per byte. So all pads connected to
351 * this port are read in parallel.
354 static void gc_nes_read_packet(struct gc *gc, int length, unsigned char *data)
358 parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK | GC_NES_LATCH);
359 udelay(GC_NES_DELAY * 2);
360 parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK);
362 for (i = 0; i < length; i++) {
363 udelay(GC_NES_DELAY);
364 parport_write_data(gc->pd->port, GC_NES_POWER);
365 data[i] = parport_read_status(gc->pd->port) ^ 0x7f;
366 udelay(GC_NES_DELAY);
367 parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK);
371 static void gc_nes_process_packet(struct gc *gc)
373 unsigned char data[GC_SNESMOUSE_LENGTH];
375 struct input_dev *dev;
379 len = gc->pad_count[GC_SNESMOUSE] ? GC_SNESMOUSE_LENGTH :
380 (gc->pad_count[GC_SNES] ? GC_SNES_LENGTH : GC_NES_LENGTH);
382 gc_nes_read_packet(gc, len, data);
384 for (i = 0; i < GC_MAX_DEVICES; i++) {
388 s = gc_status_bit[i];
394 input_report_abs(dev, ABS_X, !(s & data[6]) - !(s & data[7]));
395 input_report_abs(dev, ABS_Y, !(s & data[4]) - !(s & data[5]));
397 for (j = 0; j < 4; j++)
398 input_report_key(dev, gc_snes_btn[j],
399 s & data[gc_nes_bytes[j]]);
405 input_report_abs(dev, ABS_X, !(s & data[6]) - !(s & data[7]));
406 input_report_abs(dev, ABS_Y, !(s & data[4]) - !(s & data[5]));
408 for (j = 0; j < 8; j++)
409 input_report_key(dev, gc_snes_btn[j],
410 s & data[gc_snes_bytes[j]]);
416 * The 4 unused bits from SNES controllers appear
417 * to be ID bits so use them to make sure we are
418 * dealing with a mouse.
419 * gamepad is connected. This is important since
420 * my SNES gamepad sends 1's for bits 16-31, which
421 * cause the mouse pointer to quickly move to the
422 * upper left corner of the screen.
424 if (!(s & data[12]) && !(s & data[13]) &&
425 !(s & data[14]) && (s & data[15])) {
426 input_report_key(dev, BTN_LEFT, s & data[9]);
427 input_report_key(dev, BTN_RIGHT, s & data[8]);
430 for (j = 0; j < 7; j++) {
432 if (data[25 + j] & s)
436 if (data[17 + j] & s)
443 input_report_rel(dev, REL_X, x_rel);
449 input_report_rel(dev, REL_Y, y_rel);
463 * Multisystem joystick support
466 #define GC_MULTI_LENGTH 5 /* Multi system joystick packet length is 5 */
467 #define GC_MULTI2_LENGTH 6 /* One more bit for one more button */
470 * gc_multi_read_packet() reads a Multisystem joystick packet.
473 static void gc_multi_read_packet(struct gc *gc, int length, unsigned char *data)
477 for (i = 0; i < length; i++) {
478 parport_write_data(gc->pd->port, ~(1 << i));
479 data[i] = parport_read_status(gc->pd->port) ^ 0x7f;
483 static void gc_multi_process_packet(struct gc *gc)
485 unsigned char data[GC_MULTI2_LENGTH];
486 int data_len = gc->pad_count[GC_MULTI2] ? GC_MULTI2_LENGTH : GC_MULTI_LENGTH;
488 struct input_dev *dev;
491 gc_multi_read_packet(gc, data_len, data);
493 for (i = 0; i < GC_MAX_DEVICES; i++) {
496 s = gc_status_bit[i];
500 input_report_key(dev, BTN_THUMB, s & data[5]);
504 input_report_abs(dev, ABS_X,
505 !(s & data[2]) - !(s & data[3]));
506 input_report_abs(dev, ABS_Y,
507 !(s & data[0]) - !(s & data[1]));
508 input_report_key(dev, BTN_TRIGGER, s & data[4]);
521 * See documentation at:
522 * http://www.dim.com/~mackys/psxmemcard/ps-eng2.txt
523 * http://www.gamesx.com/controldata/psxcont/psxcont.htm
524 * ftp://milano.usal.es/pablo/
528 #define GC_PSX_DELAY 25 /* 25 usec */
529 #define GC_PSX_LENGTH 8 /* talk to the controller in bits */
530 #define GC_PSX_BYTES 6 /* the maximum number of bytes to read off the controller */
532 #define GC_PSX_MOUSE 1 /* Mouse */
533 #define GC_PSX_NEGCON 2 /* NegCon */
534 #define GC_PSX_NORMAL 4 /* Digital / Analog or Rumble in Digital mode */
535 #define GC_PSX_ANALOG 5 /* Analog in Analog mode / Rumble in Green mode */
536 #define GC_PSX_RUMBLE 7 /* Rumble in Red mode */
538 #define GC_PSX_CLOCK 0x04 /* Pin 4 */
539 #define GC_PSX_COMMAND 0x01 /* Pin 2 */
540 #define GC_PSX_POWER 0xf8 /* Pins 5-9 */
541 #define GC_PSX_SELECT 0x02 /* Pin 3 */
543 #define GC_PSX_ID(x) ((x) >> 4) /* High nibble is device type */
544 #define GC_PSX_LEN(x) (((x) & 0xf) << 1) /* Low nibble is length in bytes/2 */
546 static int gc_psx_delay = GC_PSX_DELAY;
547 module_param_named(psx_delay, gc_psx_delay, uint, 0);
548 MODULE_PARM_DESC(psx_delay, "Delay when accessing Sony PSX controller (usecs)");
550 static const short gc_psx_abs[] = {
551 ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_HAT0X, ABS_HAT0Y
553 static const short gc_psx_btn[] = {
554 BTN_TL, BTN_TR, BTN_TL2, BTN_TR2, BTN_A, BTN_B, BTN_X, BTN_Y,
555 BTN_START, BTN_SELECT, BTN_THUMBL, BTN_THUMBR
557 static const short gc_psx_ddr_btn[] = { BTN_0, BTN_1, BTN_2, BTN_3 };
560 * gc_psx_command() writes 8bit command and reads 8bit data from
564 static void gc_psx_command(struct gc *gc, int b, unsigned char *data)
566 struct parport *port = gc->pd->port;
569 memset(data, 0, GC_MAX_DEVICES);
571 for (i = 0; i < GC_PSX_LENGTH; i++, b >>= 1) {
572 cmd = (b & 1) ? GC_PSX_COMMAND : 0;
573 parport_write_data(port, cmd | GC_PSX_POWER);
574 udelay(gc_psx_delay);
576 read = parport_read_status(port) ^ 0x80;
578 for (j = 0; j < GC_MAX_DEVICES; j++) {
579 struct gc_pad *pad = &gc->pads[i];
581 if (pad->type == GC_PSX || pad->type == GC_DDR)
582 data[j] |= (read & gc_status_bit[j]) ? (1 << i) : 0;
585 parport_write_data(gc->pd->port, cmd | GC_PSX_CLOCK | GC_PSX_POWER);
586 udelay(gc_psx_delay);
591 * gc_psx_read_packet() reads a whole psx packet and returns
592 * device identifier code.
595 static void gc_psx_read_packet(struct gc *gc,
596 unsigned char data[GC_MAX_DEVICES][GC_PSX_BYTES],
597 unsigned char id[GC_MAX_DEVICES])
599 int i, j, max_len = 0;
601 unsigned char data2[GC_MAX_DEVICES];
604 parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER);
605 udelay(gc_psx_delay);
606 /* Deselect, begin command */
607 parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_POWER);
608 udelay(gc_psx_delay);
610 local_irq_save(flags);
612 gc_psx_command(gc, 0x01, data2); /* Access pad */
613 gc_psx_command(gc, 0x42, id); /* Get device ids */
614 gc_psx_command(gc, 0, data2); /* Dump status */
616 /* Find the longest pad */
617 for (i = 0; i < GC_MAX_DEVICES; i++) {
618 struct gc_pad *pad = &gc->pads[i];
620 if ((pad->type == GC_PSX || pad->type == GC_DDR) &&
621 GC_PSX_LEN(id[i]) > max_len &&
622 GC_PSX_LEN(id[i]) <= GC_PSX_BYTES) {
623 max_len = GC_PSX_LEN(id[i]);
627 /* Read in all the data */
628 for (i = 0; i < max_len; i++) {
629 gc_psx_command(gc, 0, data2);
630 for (j = 0; j < GC_MAX_DEVICES; j++)
631 data[j][i] = data2[j];
634 local_irq_restore(flags);
636 parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER);
638 /* Set id's to the real value */
639 for (i = 0; i < GC_MAX_DEVICES; i++)
640 id[i] = GC_PSX_ID(id[i]);
643 static void gc_psx_report_one(struct gc_pad *pad, unsigned char psx_type,
646 struct input_dev *dev = pad->dev;
653 input_report_key(dev, BTN_THUMBL, ~data[0] & 0x04);
654 input_report_key(dev, BTN_THUMBR, ~data[0] & 0x02);
659 if (pad->type == GC_DDR) {
660 for (i = 0; i < 4; i++)
661 input_report_key(dev, gc_psx_ddr_btn[i],
662 ~data[0] & (0x10 << i));
664 for (i = 0; i < 4; i++)
665 input_report_abs(dev, gc_psx_abs[i + 2],
668 input_report_abs(dev, ABS_X,
669 !!(data[0] & 0x80) * 128 + !(data[0] & 0x20) * 127);
670 input_report_abs(dev, ABS_Y,
671 !!(data[0] & 0x10) * 128 + !(data[0] & 0x40) * 127);
674 for (i = 0; i < 8; i++)
675 input_report_key(dev, gc_psx_btn[i], ~data[1] & (1 << i));
677 input_report_key(dev, BTN_START, ~data[0] & 0x08);
678 input_report_key(dev, BTN_SELECT, ~data[0] & 0x01);
686 if (pad->type == GC_DDR) {
687 for (i = 0; i < 4; i++)
688 input_report_key(dev, gc_psx_ddr_btn[i],
689 ~data[0] & (0x10 << i));
691 input_report_abs(dev, ABS_X,
692 !!(data[0] & 0x80) * 128 + !(data[0] & 0x20) * 127);
693 input_report_abs(dev, ABS_Y,
694 !!(data[0] & 0x10) * 128 + !(data[0] & 0x40) * 127);
697 * For some reason if the extra axes are left unset
699 * for (i = 0; i < 4; i++)
700 input_report_abs(dev, gc_psx_abs[i + 2], 128);
701 * This needs to be debugged properly,
702 * maybe fuzz processing needs to be done
708 for (i = 0; i < 8; i++)
709 input_report_key(dev, gc_psx_btn[i], ~data[1] & (1 << i));
711 input_report_key(dev, BTN_START, ~data[0] & 0x08);
712 input_report_key(dev, BTN_SELECT, ~data[0] & 0x01);
718 default: /* not a pad, ignore */
723 static void gc_psx_process_packet(struct gc *gc)
725 unsigned char data[GC_MAX_DEVICES][GC_PSX_BYTES];
726 unsigned char id[GC_MAX_DEVICES];
730 gc_psx_read_packet(gc, data, id);
732 for (i = 0; i < GC_MAX_DEVICES; i++) {
734 if (pad->type == GC_PSX || pad->type == GC_DDR)
735 gc_psx_report_one(pad, id[i], data[i]);
740 * gc_timer() initiates reads of console pads data.
743 static void gc_timer(unsigned long private)
745 struct gc *gc = (void *) private;
748 * N64 pads - must be read first, any read confuses them for 200 us
751 if (gc->pad_count[GC_N64])
752 gc_n64_process_packet(gc);
755 * NES and SNES pads or mouse
758 if (gc->pad_count[GC_NES] ||
759 gc->pad_count[GC_SNES] ||
760 gc->pad_count[GC_SNESMOUSE]) {
761 gc_nes_process_packet(gc);
765 * Multi and Multi2 joysticks
768 if (gc->pad_count[GC_MULTI] || gc->pad_count[GC_MULTI2])
769 gc_multi_process_packet(gc);
775 if (gc->pad_count[GC_PSX] || gc->pad_count[GC_DDR])
776 gc_psx_process_packet(gc);
778 mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME);
781 static int gc_open(struct input_dev *dev)
783 struct gc *gc = input_get_drvdata(dev);
786 err = mutex_lock_interruptible(&gc->mutex);
791 parport_claim(gc->pd);
792 parport_write_control(gc->pd->port, 0x04);
793 mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME);
796 mutex_unlock(&gc->mutex);
800 static void gc_close(struct input_dev *dev)
802 struct gc *gc = input_get_drvdata(dev);
804 mutex_lock(&gc->mutex);
806 del_timer_sync(&gc->timer);
807 parport_write_control(gc->pd->port, 0x00);
808 parport_release(gc->pd);
810 mutex_unlock(&gc->mutex);
813 static int __init gc_setup_pad(struct gc *gc, int idx, int pad_type)
815 struct gc_pad *pad = &gc->pads[idx];
816 struct input_dev *input_dev;
820 if (pad_type < 1 || pad_type > GC_MAX) {
821 printk(KERN_WARNING "gamecon.c: Pad type %d unknown\n", pad_type);
825 pad->dev = input_dev = input_allocate_device();
827 printk(KERN_ERR "gamecon.c: Not enough memory for input device\n");
831 pad->type = pad_type;
833 snprintf(pad->phys, sizeof(pad->phys),
834 "%s/input%d", gc->pd->port->name, idx);
836 input_dev->name = gc_names[pad_type];
837 input_dev->phys = pad->phys;
838 input_dev->id.bustype = BUS_PARPORT;
839 input_dev->id.vendor = 0x0001;
840 input_dev->id.product = pad_type;
841 input_dev->id.version = 0x0100;
843 input_set_drvdata(input_dev, gc);
845 input_dev->open = gc_open;
846 input_dev->close = gc_close;
848 if (pad_type != GC_SNESMOUSE) {
849 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
851 for (i = 0; i < 2; i++)
852 input_set_abs_params(input_dev, ABS_X + i, -1, 1, 0, 0);
854 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
856 gc->pad_count[pad_type]++;
861 for (i = 0; i < 10; i++)
862 __set_bit(gc_n64_btn[i], input_dev->keybit);
864 for (i = 0; i < 2; i++) {
865 input_set_abs_params(input_dev, ABS_X + i, -127, 126, 0, 2);
866 input_set_abs_params(input_dev, ABS_HAT0X + i, -1, 1, 0, 0);
869 err = gc_n64_init_ff(input_dev, idx);
871 printk(KERN_WARNING "gamecon.c: Failed to initiate rumble for N64 device %d\n", idx);
878 __set_bit(BTN_LEFT, input_dev->keybit);
879 __set_bit(BTN_RIGHT, input_dev->keybit);
880 __set_bit(REL_X, input_dev->relbit);
881 __set_bit(REL_Y, input_dev->relbit);
885 for (i = 4; i < 8; i++)
886 __set_bit(gc_snes_btn[i], input_dev->keybit);
888 for (i = 0; i < 4; i++)
889 __set_bit(gc_snes_btn[i], input_dev->keybit);
893 __set_bit(BTN_THUMB, input_dev->keybit);
895 __set_bit(BTN_TRIGGER, input_dev->keybit);
899 for (i = 0; i < 6; i++)
900 input_set_abs_params(input_dev,
901 gc_psx_abs[i], 4, 252, 0, 2);
902 for (i = 0; i < 12; i++)
903 __set_bit(gc_psx_btn[i], input_dev->keybit);
908 for (i = 0; i < 4; i++)
909 __set_bit(gc_psx_ddr_btn[i], input_dev->keybit);
910 for (i = 0; i < 12; i++)
911 __set_bit(gc_psx_btn[i], input_dev->keybit);
916 err = input_register_device(pad->dev);
923 input_free_device(pad->dev);
928 static struct gc __init *gc_probe(int parport, int *pads, int n_pads)
932 struct pardevice *pd;
937 pp = parport_find_number(parport);
939 printk(KERN_ERR "gamecon.c: no such parport\n");
944 pd = parport_register_device(pp, "gamecon", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
946 printk(KERN_ERR "gamecon.c: parport busy already - lp.o loaded?\n");
951 gc = kzalloc(sizeof(struct gc), GFP_KERNEL);
953 printk(KERN_ERR "gamecon.c: Not enough memory\n");
955 goto err_unreg_pardev;
958 mutex_init(&gc->mutex);
960 setup_timer(&gc->timer, gc_timer, (long) gc);
962 for (i = 0; i < n_pads && i < GC_MAX_DEVICES; i++) {
966 err = gc_setup_pad(gc, i, pads[i]);
974 printk(KERN_ERR "gamecon.c: No valid devices specified\n");
979 parport_put_port(pp);
985 input_unregister_device(gc->pads[i].dev);
989 parport_unregister_device(pd);
991 parport_put_port(pp);
996 static void gc_remove(struct gc *gc)
1000 for (i = 0; i < GC_MAX_DEVICES; i++)
1001 if (gc->pads[i].dev)
1002 input_unregister_device(gc->pads[i].dev);
1003 parport_unregister_device(gc->pd);
1007 static int __init gc_init(void)
1013 for (i = 0; i < GC_MAX_PORTS; i++) {
1014 if (gc_cfg[i].nargs == 0 || gc_cfg[i].args[0] < 0)
1017 if (gc_cfg[i].nargs < 2) {
1018 printk(KERN_ERR "gamecon.c: at least one device must be specified\n");
1023 gc_base[i] = gc_probe(gc_cfg[i].args[0],
1024 gc_cfg[i].args + 1, gc_cfg[i].nargs - 1);
1025 if (IS_ERR(gc_base[i])) {
1026 err = PTR_ERR(gc_base[i]);
1036 gc_remove(gc_base[i]);
1040 return have_dev ? 0 : -ENODEV;
1043 static void __exit gc_exit(void)
1047 for (i = 0; i < GC_MAX_PORTS; i++)
1049 gc_remove(gc_base[i]);
1052 module_init(gc_init);
1053 module_exit(gc_exit);