summaryrefslogtreecommitdiffstats
path: root/drivers/input/joystick/xpad.c
blob: 5483fb9bd819c21855008fcab4f0f26e3ad43f57 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
/*
 * X-Box gamepad driver
 *
 * Copyright (c) 2002 Marko Friedemann <mfr@bmx-chemnitz.de>
 *               2004 Oliver Schwartz <Oliver.Schwartz@gmx.de>,
 *                    Steven Toth <steve@toth.demon.co.uk>,
 *                    Franz Lehner <franz@caos.at>,
 *                    Ivan Hawkes <blackhawk@ivanhawkes.com>
 *               2005 Dominic Cerquetti <binary1230@yahoo.com>
 *               2006 Adam Buchbinder <adam.buchbinder@gmail.com>
 *               2007 Jan Kratochvil <honza@jikos.cz>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 *
 * This driver is based on:
 *  - information from     http://euc.jp/periphs/xbox-controller.ja.html
 *  - the iForce driver    drivers/char/joystick/iforce.c
 *  - the skeleton-driver  drivers/usb/usb-skeleton.c
 *  - Xbox 360 information http://www.free60.org/wiki/Gamepad
 *
 * Thanks to:
 *  - ITO Takayuki for providing essential xpad information on his website
 *  - Vojtech Pavlik     - iforce driver / input subsystem
 *  - Greg Kroah-Hartman - usb-skeleton driver
 *  - XBOX Linux project - extra USB id's
 *
 * TODO:
 *  - fine tune axes (especially trigger axes)
 *  - fix "analog" buttons (reported as digital now)
 *  - get rumble working
 *  - need USB IDs for other dance pads
 *
 * History:
 *
 * 2002-06-27 - 0.0.1 : first version, just said "XBOX HID controller"
 *
 * 2002-07-02 - 0.0.2 : basic working version
 *  - all axes and 9 of the 10 buttons work (german InterAct device)
 *  - the black button does not work
 *
 * 2002-07-14 - 0.0.3 : rework by Vojtech Pavlik
 *  - indentation fixes
 *  - usb + input init sequence fixes
 *
 * 2002-07-16 - 0.0.4 : minor changes, merge with Vojtech's v0.0.3
 *  - verified the lack of HID and report descriptors
 *  - verified that ALL buttons WORK
 *  - fixed d-pad to axes mapping
 *
 * 2002-07-17 - 0.0.5 : simplified d-pad handling
 *
 * 2004-10-02 - 0.0.6 : DDR pad support
 *  - borrowed from the XBOX linux kernel
 *  - USB id's for commonly used dance pads are present
 *  - dance pads will map D-PAD to buttons, not axes
 *  - pass the module paramater 'dpad_to_buttons' to force
 *    the D-PAD to map to buttons if your pad is not detected
 *
 * Later changes can be tracked in SCM.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/stat.h>
#include <linux/module.h>
#include <linux/usb/input.h>

#define DRIVER_AUTHOR "Marko Friedemann <mfr@bmx-chemnitz.de>"
#define DRIVER_DESC "X-Box pad driver"

#define XPAD_PKT_LEN 32

/* xbox d-pads should map to buttons, as is required for DDR pads
   but we map them to axes when possible to simplify things */
#define MAP_DPAD_TO_BUTTONS		(1 << 0)
#define MAP_TRIGGERS_TO_BUTTONS		(1 << 1)

#define XTYPE_XBOX        0
#define XTYPE_XBOX360     1
#define XTYPE_XBOX360W    2
#define XTYPE_UNKNOWN     3

static int dpad_to_buttons;
module_param(dpad_to_buttons, bool, S_IRUGO);
MODULE_PARM_DESC(dpad_to_buttons, "Map D-PAD to buttons rather than axes for unknown pads");

static int triggers_to_buttons;
module_param(triggers_to_buttons, bool, S_IRUGO);
MODULE_PARM_DESC(triggers_to_buttons, "Map triggers to buttons rather than axes for unknown pads");

static const struct xpad_device {
	u16 idVendor;
	u16 idProduct;
	char *name;
	u8 mapping;
	u8 xtype;
} xpad_device[] = {
	{ 0x045e, 0x0202, "Microsoft X-Box pad v1 (US)", 0, XTYPE_XBOX },
	{ 0x045e, 0x0289, "Microsoft X-Box pad v2 (US)", 0, XTYPE_XBOX },
	{ 0x045e, 0x0285, "Microsoft X-Box pad (Japan)", 0, XTYPE_XBOX },
	{ 0x045e, 0x0287, "Microsoft Xbox Controller S", 0, XTYPE_XBOX },
	{ 0x045e, 0x0719, "Xbox 360 Wireless Receiver", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
	{ 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
	{ 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", 0, XTYPE_XBOX },
	{ 0x046d, 0xc242, "Logitech Chillstream Controller", 0, XTYPE_XBOX360 },
	{ 0x046d, 0xca84, "Logitech Xbox Cordless Controller", 0, XTYPE_XBOX },
	{ 0x046d, 0xca88, "Logitech Compact Controller for Xbox", 0, XTYPE_XBOX },
	{ 0x05fd, 0x1007, "Mad Catz Controller (unverified)", 0, XTYPE_XBOX },
	{ 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)", 0, XTYPE_XBOX },
	{ 0x0738, 0x4516, "Mad Catz Control Pad", 0, XTYPE_XBOX },
	{ 0x0738, 0x4522, "Mad Catz LumiCON", 0, XTYPE_XBOX },
	{ 0x0738, 0x4526, "Mad Catz Control Pad Pro", 0, XTYPE_XBOX },
	{ 0x0738, 0x4536, "Mad Catz MicroCON", 0, XTYPE_XBOX },
	{ 0x0738, 0x4540, "Mad Catz Beat Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
	{ 0x0738, 0x4556, "Mad Catz Lynx Wireless Controller", 0, XTYPE_XBOX },
	{ 0x0738, 0x4716, "Mad Catz Wired Xbox 360 Controller", 0, XTYPE_XBOX360 },
	{ 0x0738, 0x4738, "Mad Catz Wired Xbox 360 Controller (SFIV)", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x0738, 0x6040, "Mad Catz Beat Pad Pro", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
	{ 0x0c12, 0x8802, "Zeroplus Xbox Controller", 0, XTYPE_XBOX },
	{ 0x0c12, 0x880a, "Pelican Eclipse PL-2023", 0, XTYPE_XBOX },
	{ 0x0c12, 0x8810, "Zeroplus Xbox Controller", 0, XTYPE_XBOX },
	{ 0x0c12, 0x9902, "HAMA VibraX - *FAULTY HARDWARE*", 0, XTYPE_XBOX },
	{ 0x0e4c, 0x1097, "Radica Gamester Controller", 0, XTYPE_XBOX },
	{ 0x0e4c, 0x2390, "Radica Games Jtech Controller", 0, XTYPE_XBOX },
	{ 0x0e6f, 0x0003, "Logic3 Freebird wireless Controller", 0, XTYPE_XBOX },
	{ 0x0e6f, 0x0005, "Eclipse wireless Controller", 0, XTYPE_XBOX },
	{ 0x0e6f, 0x0006, "Edge wireless Controller", 0, XTYPE_XBOX },
	{ 0x0e6f, 0x0006, "Pelican 'TSZ' Wired Xbox 360 Controller", 0, XTYPE_XBOX360 },
	{ 0x0e8f, 0x0201, "SmartJoy Frag Xpad/PS2 adaptor", 0, XTYPE_XBOX },
	{ 0x0f30, 0x0202, "Joytech Advanced Controller", 0, XTYPE_XBOX },
	{ 0x0f30, 0x8888, "BigBen XBMiniPad Controller", 0, XTYPE_XBOX },
	{ 0x102c, 0xff0c, "Joytech Wireless Advanced Controller", 0, XTYPE_XBOX },
	{ 0x12ab, 0x8809, "Xbox DDR dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
	{ 0x1430, 0x4748, "RedOctane Guitar Hero X-plorer", 0, XTYPE_XBOX360 },
	{ 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
	{ 0x146b, 0x0601, "BigBen Interactive XBOX 360 Controller", 0, XTYPE_XBOX360 },
	{ 0x045e, 0x028e, "Microsoft X-Box 360 pad", 0, XTYPE_XBOX360 },
	{ 0x1bad, 0x0003, "Harmonix Rock Band Drumkit", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x0f0d, 0x0016, "Hori Real Arcade Pro.EX", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0xffff, 0xffff, "Chinese-made Xbox Controller", 0, XTYPE_XBOX },
	{ 0x0000, 0x0000, "Generic X-Box pad", 0, XTYPE_UNKNOWN }
};

/* buttons shared with xbox and xbox360 */
static const signed short xpad_common_btn[] = {
	BTN_A, BTN_B, BTN_X, BTN_Y,			/* "analog" buttons */
	BTN_START, BTN_BACK, BTN_THUMBL, BTN_THUMBR,	/* start/back/sticks */
	-1						/* terminating entry */
};

/* original xbox controllers only */
static const signed short xpad_btn[] = {
	BTN_C, BTN_Z,		/* "analog" buttons */
	-1			/* terminating entry */
};

/* used when dpad is mapped to nuttons */
static const signed short xpad_btn_pad[] = {
	BTN_LEFT, BTN_RIGHT,		/* d-pad left, right */
	BTN_0, BTN_1,			/* d-pad up, down (XXX names??) */
	-1				/* terminating entry */
};

/* used when triggers are mapped to buttons */
static const signed short xpad_btn_triggers[] = {
	BTN_TL2, BTN_TR2,		/* triggers left/right */
	-1
};


static const signed short xpad360_btn[] = {  /* buttons for x360 controller */
	BTN_TL, BTN_TR,		/* Button LB/RB */
	BTN_MODE,		/* The big X button */
	-1
};

static const signed short xpad_abs[] = {
	ABS_X, ABS_Y,		/* left stick */
	ABS_RX, ABS_RY,		/* right stick */
	-1			/* terminating entry */
};

/* used when dpad is mapped to axes */
static const signed short xpad_abs_pad[] = {
	ABS_HAT0X, ABS_HAT0Y,	/* d-pad axes */
	-1			/* terminating entry */
};

/* used when triggers are mapped to axes */
static const signed short xpad_abs_triggers[] = {
	ABS_Z, ABS_RZ,		/* triggers left/right */
	-1
};

/* Xbox 360 has a vendor-specific class, so we cannot match it with only
 * USB_INTERFACE_INFO (also specifically refused by USB subsystem), so we
 * match against vendor id as well. Wired Xbox 360 devices have protocol 1,
 * wireless controllers have protocol 129. */
#define XPAD_XBOX360_VENDOR_PROTOCOL(vend,pr) \
	.match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO, \
	.idVendor = (vend), \
	.bInterfaceClass = USB_CLASS_VENDOR_SPEC, \
	.bInterfaceSubClass = 93, \
	.bInterfaceProtocol = (pr)
#define XPAD_XBOX360_VENDOR(vend) \
	{ XPAD_XBOX360_VENDOR_PROTOCOL(vend,1) }, \
	{ XPAD_XBOX360_VENDOR_PROTOCOL(vend,129) }

static struct usb_device_id xpad_table [] = {
	{ USB_INTERFACE_INFO('X', 'B', 0) },	/* X-Box USB-IF not approved class */
	XPAD_XBOX360_VENDOR(0x045e),		/* Microsoft X-Box 360 controllers */
	XPAD_XBOX360_VENDOR(0x046d),		/* Logitech X-Box 360 style controllers */
	XPAD_XBOX360_VENDOR(0x0738),		/* Mad Catz X-Box 360 controllers */
	XPAD_XBOX360_VENDOR(0x0e6f),		/* 0x0e6f X-Box 360 controllers */
	XPAD_XBOX360_VENDOR(0x1430),		/* RedOctane X-Box 360 controllers */
	XPAD_XBOX360_VENDOR(0x146b),		/* BigBen Interactive Controllers */
	XPAD_XBOX360_VENDOR(0x1bad),		/* Rock Band Drums */
	XPAD_XBOX360_VENDOR(0x0f0d),            /* Hori Controllers */
	{ }
};

MODULE_DEVICE_TABLE (usb, xpad_table);

struct usb_xpad {
	struct input_dev *dev;		/* input device interface */
	struct usb_device *udev;	/* usb device */

	int pad_present;

	struct urb *irq_in;		/* urb for interrupt in report */
	unsigned char *idata;		/* input data */
	dma_addr_t idata_dma;

	struct urb *bulk_out;
	unsigned char *bdata;

#if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS)
	struct urb *irq_out;		/* urb for interrupt out report */
	unsigned char *odata;		/* output data */
	dma_addr_t odata_dma;
	struct mutex odata_mutex;
#endif

#if defined(CONFIG_JOYSTICK_XPAD_LEDS)
	struct xpad_led *led;
#endif

	char phys[64];			/* physical device path */

	int mapping;			/* map d-pad to buttons or to axes */
	int xtype;			/* type of xbox device */
};

/*
 *	xpad_process_packet
 *
 *	Completes a request by converting the data into events for the
 *	input subsystem.
 *
 *	The used report descriptor was taken from ITO Takayukis website:
 *	 http://euc.jp/periphs/xbox-controller.ja.html
 */

static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
{
	struct input_dev *dev = xpad->dev;

	/* left stick */
	input_report_abs(dev, ABS_X,
			 (__s16) le16_to_cpup((__le16 *)(data + 12)));
	input_report_abs(dev, ABS_Y,
			 ~(__s16) le16_to_cpup((__le16 *)(data + 14)));

	/* right stick */
	input_report_abs(dev, ABS_RX,
			 (__s16) le16_to_cpup((__le16 *)(data + 16)));
	input_report_abs(dev, ABS_RY,
			 ~(__s16) le16_to_cpup((__le16 *)(data + 18)));

	/* triggers left/right */
	if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
		input_report_key(dev, BTN_TL2, data[10]);
		input_report_key(dev, BTN_TR2, data[11]);
	} else {
		input_report_abs(dev, ABS_Z, data[10]);
		input_report_abs(dev, ABS_RZ, data[11]);
	}

	/* digital pad */
	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
		input_report_key(dev, BTN_LEFT,  data[2] & 0x04);
		input_report_key(dev, BTN_RIGHT, data[2] & 0x08);
		input_report_key(dev, BTN_0,     data[2] & 0x01); /* up */
		input_report_key(dev, BTN_1,     data[2] & 0x02); /* down */
	} else {
		input_report_abs(dev, ABS_HAT0X,
				 !!(data[2] & 0x08) - !!(data[2] & 0x04));
		input_report_abs(dev, ABS_HAT0Y,
				 !!(data[2] & 0x02) - !!(data[2] & 0x01));
	}

	/* start/back buttons and stick press left/right */
	input_report_key(dev, BTN_START,  data[2] & 0x10);
	input_report_key(dev, BTN_BACK,   data[2] & 0x20);
	input_report_key(dev, BTN_THUMBL, data[2] & 0x40);
	input_report_key(dev, BTN_THUMBR, data[2] & 0x80);

	/* "analog" buttons A, B, X, Y */
	input_report_key(dev, BTN_A, data[4]);
	input_report_key(dev, BTN_B, data[5]);
	input_report_key(dev, BTN_X, data[6]);
	input_report_key(dev, BTN_Y, data[7]);

	/* "analog" buttons black, white */
	input_report_key(dev, BTN_C, data[8]);
	input_report_key(dev, BTN_Z, data[9]);

	input_sync(dev);
}

/*
 *	xpad360_process_packet
 *
 *	Completes a request by converting the data into events for the
 *	input subsystem. It is version for xbox 360 controller
 *
 *	The used report descriptor was taken from:
 *		http://www.free60.org/wiki/Gamepad
 */

static void xpad360_process_packet(struct usb_xpad *xpad,
				   u16 cmd, unsigned char *data)
{
	struct input_dev *dev = xpad->dev;

	/* digital pad */
	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
		/* dpad as buttons (right, left, down, up) */
		input_report_key(dev, BTN_LEFT, data[2] & 0x04);
		input_report_key(dev, BTN_RIGHT, data[2] & 0x08);
		input_report_key(dev, BTN_0, data[2] & 0x01);	/* up */
		input_report_key(dev, BTN_1, data[2] & 0x02);	/* down */
	} else {
		input_report_abs(dev, ABS_HAT0X,
				 !!(data[2] & 0x08) - !!(data[2] & 0x04));
		input_report_abs(dev, ABS_HAT0Y,
				 !!(data[2] & 0x02) - !!(data[2] & 0x01));
	}

	/* start/back buttons */
	input_report_key(dev, BTN_START,  data[2] & 0x10);
	input_report_key(dev, BTN_BACK,   data[2] & 0x20);

	/* stick press left/right */
	input_report_key(dev, BTN_THUMBL, data[2] & 0x40);
	input_report_key(dev, BTN_THUMBR, data[2] & 0x80);

	/* buttons A,B,X,Y,TL,TR and MODE */
	input_report_key(dev, BTN_A,	data[3] & 0x10);
	input_report_key(dev, BTN_B,	data[3] & 0x20);
	input_report_key(dev, BTN_X,	data[3] & 0x40);
	input_report_key(dev, BTN_Y,	data[3] & 0x80);
	input_report_key(dev, BTN_TL,	data[3] & 0x01);
	input_report_key(dev, BTN_TR,	data[3] & 0x02);
	input_report_key(dev, BTN_MODE,	data[3] & 0x04);

	/* left stick */
	input_report_abs(dev, ABS_X,
			 (__s16) le16_to_cpup((__le16 *)(data + 6)));
	input_report_abs(dev, ABS_Y,
			 ~(__s16) le16_to_cpup((__le16 *)(data + 8)));

	/* right stick */
	input_report_abs(dev, ABS_RX,
			 (__s16) le16_to_cpup((__le16 *)(data + 10)));
	input_report_abs(dev, ABS_RY,
			 ~(__s16) le16_to_cpup((__le16 *)(data + 12)));

	/* triggers left/right */
	if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
		input_report_key(dev, BTN_TL2, data[4]);
		input_report_key(dev, BTN_TR2, data[5]);
	} else {
		input_report_abs(dev, ABS_Z, data[4]);
		input_report_abs(dev, ABS_RZ, data[5]);
	}

	input_sync(dev);
}

/*
 * xpad360w_process_packet
 *
 * Completes a request by converting the data into events for the
 * input subsystem. It is version for xbox 360 wireless controller.
 *
 * Byte.Bit
 * 00.1 - Status change: The controller or headset has connected/disconnected
 *                       Bits 01.7 and 01.6 are valid
 * 01.7 - Controller present
 * 01.6 - Headset present
 * 01.1 - Pad state (Bytes 4+) valid
 *
 */

static void xpad360w_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
{
	/* Presence change */
	if (data[0] & 0x08) {
		if (data[1] & 0x80) {
			xpad->pad_present = 1;
			usb_submit_urb(xpad->bulk_out, GFP_ATOMIC);
		} else
			xpad->pad_present = 0;
	}

	/* Valid pad data */
	if (!(data[1] & 0x1))
		return;

	xpad360_process_packet(xpad, cmd, &data[4]);
}

static void xpad_irq_in(struct urb *urb)
{
	struct usb_xpad *xpad = urb->context;
	int retval, status;

	status = urb->status;

	switch (status) {
	case 0:
		/* success */
		break;
	case -ECONNRESET:
	case -ENOENT:
	case -ESHUTDOWN:
		/* this urb is terminated, clean up */
		dbg("%s - urb shutting down with status: %d",
			__func__, status);
		return;
	default:
		dbg("%s - nonzero urb status received: %d",
			__func__, status);
		goto exit;
	}

	switch (xpad->xtype) {
	case XTYPE_XBOX360:
		xpad360_process_packet(xpad, 0, xpad->idata);
		break;
	case XTYPE_XBOX360W:
		xpad360w_process_packet(xpad, 0, xpad->idata);
		break;
	default:
		xpad_process_packet(xpad, 0, xpad->idata);
	}

exit:
	retval = usb_submit_urb (urb, GFP_ATOMIC);
	if (retval)
		err ("%s - usb_submit_urb failed with result %d",
		     __func__, retval);
}

static void xpad_bulk_out(struct urb *urb)
{
	switch (urb->status) {
	case 0:
		/* success */
		break;
	case -ECONNRESET:
	case -ENOENT:
	case -ESHUTDOWN:
		/* this urb is terminated, clean up */
		dbg("%s - urb shutting down with status: %d", __func__, urb->status);
		break;
	default:
		dbg("%s - nonzero urb status received: %d", __func__, urb->status);
	}
}

#if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS)
static void xpad_irq_out(struct urb *urb)
{
	int retval, status;

	status = urb->status;

	switch (status) {
	case 0:
		/* success */
		return;

	case -ECONNRESET:
	case -ENOENT:
	case -ESHUTDOWN:
		/* this urb is terminated, clean up */
		dbg("%s - urb shutting down with status: %d", __func__, status);
		return;

	default:
		dbg("%s - nonzero urb status received: %d", __func__, status);
		goto exit;
	}

exit:
	retval = usb_submit_urb(urb, GFP_ATOMIC);
	if (retval)
		err("%s - usb_submit_urb failed with result %d",
		    __func__, retval);
}

static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad)
{
	struct usb_endpoint_descriptor *ep_irq_out;
	int error = -ENOMEM;

	if (xpad->xtype != XTYPE_XBOX360)
		return 0;

	xpad->odata = usb_buffer_alloc(xpad->udev, XPAD_PKT_LEN,
				       GFP_KERNEL, &xpad->odata_dma);
	if (!xpad->odata)
		goto fail1;

	mutex_init(&xpad->odata_mutex);

	xpad->irq_out = usb_alloc_urb(0, GFP_KERNEL);
	if (!xpad->irq_out)
		goto fail2;

	ep_irq_out = &intf->cur_altsetting->endpoint[1].desc;
	usb_fill_int_urb(xpad->irq_out, xpad->udev,
			 usb_sndintpipe(xpad->udev, ep_irq_out->bEndpointAddress),
			 xpad->odata, XPAD_PKT_LEN,
			 xpad_irq_out, xpad, ep_irq_out->bInterval);
	xpad->irq_out->transfer_dma = xpad->odata_dma;
	xpad->irq_out->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;

	return 0;

 fail2:	usb_buffer_free(xpad->udev, XPAD_PKT_LEN, xpad->odata, xpad->odata_dma);
 fail1:	return error;
}

static void xpad_stop_output(struct usb_xpad *xpad)
{
	if (xpad->xtype == XTYPE_XBOX360)
		usb_kill_urb(xpad->irq_out);
}

static void xpad_deinit_output(struct usb_xpad *xpad)
{
	if (xpad->xtype == XTYPE_XBOX360) {
		usb_free_urb(xpad->irq_out);
		usb_buffer_free(xpad->udev, XPAD_PKT_LEN,
				xpad->odata, xpad->odata_dma);
	}
}
#else
static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad) { return 0; }
static void xpad_deinit_output(struct usb_xpad *xpad) {}
static void xpad_stop_output(struct usb_xpad *xpad) {}
#endif

#ifdef CONFIG_JOYSTICK_XPAD_FF
static int xpad_play_effect(struct input_dev *dev, void *data,
			    struct ff_effect *effect)
{
	struct usb_xpad *xpad = input_get_drvdata(dev);

	if (effect->type == FF_RUMBLE) {
		__u16 strong = effect->u.rumble.strong_magnitude;
		__u16 weak = effect->u.rumble.weak_magnitude;
		xpad->odata[0] = 0x00;
		xpad->odata[1] = 0x08;
		xpad->odata[2] = 0x00;
		xpad->odata[3] = strong / 256;
		xpad->odata[4] = weak / 256;
		xpad->odata[5] = 0x00;
		xpad->odata[6] = 0x00;
		xpad->odata[7] = 0x00;
		xpad->irq_out->transfer_buffer_length = 8;
		usb_submit_urb(xpad->irq_out, GFP_KERNEL);
	}

	return 0;
}

static int xpad_init_ff(struct usb_xpad *xpad)
{
	if (xpad->xtype != XTYPE_XBOX360)
		return 0;

	input_set_capability(xpad->dev, EV_FF, FF_RUMBLE);

	return input_ff_create_memless(xpad->dev, NULL, xpad_play_effect);
}

#else
static int xpad_init_ff(struct usb_xpad *xpad) { return 0; }
#endif

#if defined(CONFIG_JOYSTICK_XPAD_LEDS)
#include <linux/leds.h>

struct xpad_led {
	char name[16];
	struct led_classdev led_cdev;
	struct usb_xpad *xpad;
};

static void xpad_send_led_command(struct usb_xpad *xpad, int command)
{
	if (command >= 0 && command < 14) {
		mutex_lock(&xpad->odata_mutex);
		xpad->odata[0] = 0x01;
		xpad->odata[1] = 0x03;
		xpad->odata[2] = command;
		xpad->irq_out->transfer_buffer_length = 3;
		usb_submit_urb(xpad->irq_out, GFP_KERNEL);
		mutex_unlock(&xpad->odata_mutex);
	}
}

static void xpad_led_set(struct led_classdev *led_cdev,
			 enum led_brightness value)
{
	struct xpad_led *xpad_led = container_of(led_cdev,
						 struct xpad_led, led_cdev);

	xpad_send_led_command(xpad_led->xpad, value);
}

static int xpad_led_probe(struct usb_xpad *xpad)
{
	static atomic_t led_seq	= ATOMIC_INIT(0);
	long led_no;
	struct xpad_led *led;
	struct led_classdev *led_cdev;
	int error;

	if (xpad->xtype != XTYPE_XBOX360)
		return 0;

	xpad->led = led = kzalloc(sizeof(struct xpad_led), GFP_KERNEL);
	if (!led)
		return -ENOMEM;

	led_no = (long)atomic_inc_return(&led_seq) - 1;

	snprintf(led->name, sizeof(led->name), "xpad%ld", led_no);
	led->xpad = xpad;

	led_cdev = &led->led_cdev;
	led_cdev->name = led->name;
	led_cdev->brightness_set = xpad_led_set;

	error = led_classdev_register(&xpad->udev->dev, led_cdev);
	if (error) {
		kfree(led);
		xpad->led = NULL;
		return error;
	}

	/*
	 * Light up the segment corresponding to controller number
	 */
	xpad_send_led_command(xpad, (led_no % 4) + 2);

	return 0;
}

static void xpad_led_disconnect(struct usb_xpad *xpad)
{
	struct xpad_led *xpad_led = xpad->led;

	if (xpad_led) {
		led_classdev_unregister(&xpad_led->led_cdev);
		kfree(xpad_led->name);
	}
}
#else
static int xpad_led_probe(struct usb_xpad *xpad) { return 0; }
static void xpad_led_disconnect(struct usb_xpad *xpad) { }
#endif


static int xpad_open(struct input_dev *dev)
{
	struct usb_xpad *xpad = input_get_drvdata(dev);

	/* URB was submitted in probe */
	if(xpad->xtype == XTYPE_XBOX360W)
		return 0;

	xpad->irq_in->dev = xpad->udev;
	if (usb_submit_urb(xpad->irq_in, GFP_KERNEL))
		return -EIO;

	return 0;
}

static void xpad_close(struct input_dev *dev)
{
	struct usb_xpad *xpad = input_get_drvdata(dev);

	if(xpad->xtype != XTYPE_XBOX360W)
		usb_kill_urb(xpad->irq_in);
	xpad_stop_output(xpad);
}

static void xpad_set_up_abs(struct input_dev *input_dev, signed short abs)
{
	set_bit(abs, input_dev->absbit);

	switch (abs) {
	case ABS_X:
	case ABS_Y:
	case ABS_RX:
	case ABS_RY:	/* the two sticks */
		input_set_abs_params(input_dev, abs, -32768, 32767, 16, 128);
		break;
	case ABS_Z:
	case ABS_RZ:	/* the triggers (if mapped to axes) */
		input_set_abs_params(input_dev, abs, 0, 255, 0, 0);
		break;
	case ABS_HAT0X:
	case ABS_HAT0Y:	/* the d-pad (only if dpad is mapped to axes */
		input_set_abs_params(input_dev, abs, -1, 1, 0, 0);
		break;
	}
}

static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
	struct usb_device *udev = interface_to_usbdev(intf);
	struct usb_xpad *xpad;
	struct input_dev *input_dev;
	struct usb_endpoint_descriptor *ep_irq_in;
	int i;
	int error = -ENOMEM;

	for (i = 0; xpad_device[i].idVendor; i++) {
		if ((le16_to_cpu(udev->descriptor.idVendor) == xpad_device[i].idVendor) &&
		    (le16_to_cpu(udev->descriptor.idProduct) == xpad_device[i].idProduct))
			break;
	}

	xpad = kzalloc(sizeof(struct usb_xpad), GFP_KERNEL);
	input_dev = input_allocate_device();
	if (!xpad || !input_dev)
		goto fail1;

	xpad->idata = usb_buffer_alloc(udev, XPAD_PKT_LEN,
				       GFP_KERNEL, &xpad->idata_dma);
	if (!xpad->idata)
		goto fail1;

	xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL);
	if (!xpad->irq_in)
		goto fail2;

	xpad->udev = udev;
	xpad->mapping = xpad_device[i].mapping;
	xpad->xtype = xpad_device[i].xtype;

	if (xpad->xtype == XTYPE_UNKNOWN) {
		if (intf->cur_altsetting->desc.bInterfaceClass == USB_CLASS_VENDOR_SPEC) {
			if (intf->cur_altsetting->desc.bInterfaceProtocol == 129)
				xpad->xtype = XTYPE_XBOX360W;
			else
				xpad->xtype = XTYPE_XBOX360;
		} else
			xpad->xtype = XTYPE_XBOX;

		if (dpad_to_buttons)
			xpad->mapping |= MAP_DPAD_TO_BUTTONS;
		if (triggers_to_buttons)
			xpad->mapping |= MAP_TRIGGERS_TO_BUTTONS;
	}

	xpad->dev = input_dev;
	usb_make_path(udev, xpad->phys, sizeof(xpad->phys));
	strlcat(xpad->phys, "/input0", sizeof(xpad->phys));

	input_dev->name = xpad_device[i].name;
	input_dev->phys = xpad->phys;
	usb_to_input_id(udev, &input_dev->id);
	input_dev->dev.parent = &intf->dev;

	input_set_drvdata(input_dev, xpad);

	input_dev->open = xpad_open;
	input_dev->close = xpad_close;

	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);

	/* set up standard buttons and axes */
	for (i = 0; xpad_common_btn[i] >= 0; i++)
		__set_bit(xpad_common_btn[i], input_dev->keybit);

	for (i = 0; xpad_abs[i] >= 0; i++)
		xpad_set_up_abs(input_dev, xpad_abs[i]);

	/* Now set up model-specific ones */
	if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype == XTYPE_XBOX360W) {
		for (i = 0; xpad360_btn[i] >= 0; i++)
			__set_bit(xpad360_btn[i], input_dev->keybit);
	} else {
		for (i = 0; xpad_btn[i] >= 0; i++)
			__set_bit(xpad_btn[i], input_dev->keybit);
	}

	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
		for (i = 0; xpad_btn_pad[i] >= 0; i++)
			__set_bit(xpad_btn_pad[i], input_dev->keybit);
	} else {
		for (i = 0; xpad_abs_pad[i] >= 0; i++)
		    xpad_set_up_abs(input_dev, xpad_abs_pad[i]);
	}

	if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
		for (i = 0; xpad_btn_triggers[i] >= 0; i++)
			__set_bit(xpad_btn_triggers[i], input_dev->keybit);
	} else {
		for (i = 0; xpad_abs_triggers[i] >= 0; i++)
			xpad_set_up_abs(input_dev, xpad_abs_triggers[i]);
	}

	error = xpad_init_output(intf, xpad);
	if (error)
		goto fail2;

	error = xpad_init_ff(xpad);
	if (error)
		goto fail3;

	error = xpad_led_probe(xpad);
	if (error)
		goto fail3;

	ep_irq_in = &intf->cur_altsetting->endpoint[0].desc;
	usb_fill_int_urb(xpad->irq_in, udev,
			 usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress),
			 xpad->idata, XPAD_PKT_LEN, xpad_irq_in,
			 xpad, ep_irq_in->bInterval);
	xpad->irq_in->transfer_dma = xpad->idata_dma;
	xpad->irq_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;

	error = input_register_device(xpad->dev);
	if (error)
		goto fail4;

	usb_set_intfdata(intf, xpad);

	/*
	 * Submit the int URB immediatly rather than waiting for open
	 * because we get status messages from the device whether
	 * or not any controllers are attached.  In fact, it's
	 * exactly the message that a controller has arrived that
	 * we're waiting for.
	 */
	if (xpad->xtype == XTYPE_XBOX360W) {
		xpad->irq_in->dev = xpad->udev;
		error = usb_submit_urb(xpad->irq_in, GFP_KERNEL);
		if (error)
			goto fail4;

		/*
		 * Setup the message to set the LEDs on the
		 * controller when it shows up
		 */
		xpad->bulk_out = usb_alloc_urb(0, GFP_KERNEL);
		if(!xpad->bulk_out)
			goto fail5;

		xpad->bdata = kzalloc(XPAD_PKT_LEN, GFP_KERNEL);
		if(!xpad->bdata)
			goto fail6;

		xpad->bdata[2] = 0x08;
		switch (intf->cur_altsetting->desc.bInterfaceNumber) {
		case 0:
			xpad->bdata[3] = 0x42;
			break;
		case 2:
			xpad->bdata[3] = 0x43;
			break;
		case 4:
			xpad->bdata[3] = 0x44;
			break;
		case 6:
			xpad->bdata[3] = 0x45;
		}

		ep_irq_in = &intf->cur_altsetting->endpoint[1].desc;
		usb_fill_bulk_urb(xpad->bulk_out, udev,
				usb_sndbulkpipe(udev, ep_irq_in->bEndpointAddress),
				xpad->bdata, XPAD_PKT_LEN, xpad_bulk_out, xpad);
	}

	return 0;

 fail6:	usb_free_urb(xpad->bulk_out);
 fail5:	usb_kill_urb(xpad->irq_in);
 fail4:	usb_free_urb(xpad->irq_in);
 fail3:	xpad_deinit_output(xpad);
 fail2:	usb_buffer_free(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
 fail1:	input_free_device(input_dev);
	kfree(xpad);
	return error;

}

static void xpad_disconnect(struct usb_interface *intf)
{
	struct usb_xpad *xpad = usb_get_intfdata (intf);

	usb_set_intfdata(intf, NULL);
	if (xpad) {
		xpad_led_disconnect(xpad);
		input_unregister_device(xpad->dev);
		xpad_deinit_output(xpad);
		if (xpad->xtype == XTYPE_XBOX360W) {
			usb_kill_urb(xpad->bulk_out);
			usb_free_urb(xpad->bulk_out);
			usb_kill_urb(xpad->irq_in);
		}
		usb_free_urb(xpad->irq_in);
		usb_buffer_free(xpad->udev, XPAD_PKT_LEN,
				xpad->idata, xpad->idata_dma);
		kfree(xpad);
	}
}

static struct usb_driver xpad_driver = {
	.name		= "xpad",
	.probe		= xpad_probe,
	.disconnect	= xpad_disconnect,
	.id_table	= xpad_table,
};

static int __init usb_xpad_init(void)
{
	int result = usb_register(&xpad_driver);
	if (result == 0)
		printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC "\n");
	return result;
}

static void __exit usb_xpad_exit(void)
{
	usb_deregister(&xpad_driver);
}

module_init(usb_xpad_init);
module_exit(usb_xpad_exit);

MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");