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1/*
2 * X-Box gamepad driver
3 *
4 * Copyright (c) 2002 Marko Friedemann <mfr@bmx-chemnitz.de>
5 *               2004 Oliver Schwartz <Oliver.Schwartz@gmx.de>,
6 *                    Steven Toth <steve@toth.demon.co.uk>,
7 *                    Franz Lehner <franz@caos.at>,
8 *                    Ivan Hawkes <blackhawk@ivanhawkes.com>
9 *               2005 Dominic Cerquetti <binary1230@yahoo.com>
10 *               2006 Adam Buchbinder <adam.buchbinder@gmail.com>
11 *               2007 Jan Kratochvil <honza@jikos.cz>
12 *               2010 Christoph Fritz <chf.fritz@googlemail.com>
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
18 *
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.
23 *
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
27 *
28 *
29 * This driver is based on:
30 *  - information from     http://euc.jp/periphs/xbox-controller.ja.html
31 *  - the iForce driver    drivers/char/joystick/iforce.c
32 *  - the skeleton-driver  drivers/usb/usb-skeleton.c
33 *  - Xbox 360 information http://www.free60.org/wiki/Gamepad
34 *
35 * Thanks to:
36 *  - ITO Takayuki for providing essential xpad information on his website
37 *  - Vojtech Pavlik     - iforce driver / input subsystem
38 *  - Greg Kroah-Hartman - usb-skeleton driver
39 *  - XBOX Linux project - extra USB id's
40 *
41 * TODO:
42 *  - fine tune axes (especially trigger axes)
43 *  - fix "analog" buttons (reported as digital now)
44 *  - get rumble working
45 *  - need USB IDs for other dance pads
46 *
47 * History:
48 *
49 * 2002-06-27 - 0.0.1 : first version, just said "XBOX HID controller"
50 *
51 * 2002-07-02 - 0.0.2 : basic working version
52 *  - all axes and 9 of the 10 buttons work (german InterAct device)
53 *  - the black button does not work
54 *
55 * 2002-07-14 - 0.0.3 : rework by Vojtech Pavlik
56 *  - indentation fixes
57 *  - usb + input init sequence fixes
58 *
59 * 2002-07-16 - 0.0.4 : minor changes, merge with Vojtech's v0.0.3
60 *  - verified the lack of HID and report descriptors
61 *  - verified that ALL buttons WORK
62 *  - fixed d-pad to axes mapping
63 *
64 * 2002-07-17 - 0.0.5 : simplified d-pad handling
65 *
66 * 2004-10-02 - 0.0.6 : DDR pad support
67 *  - borrowed from the XBOX linux kernel
68 *  - USB id's for commonly used dance pads are present
69 *  - dance pads will map D-PAD to buttons, not axes
70 *  - pass the module paramater 'dpad_to_buttons' to force
71 *    the D-PAD to map to buttons if your pad is not detected
72 *
73 * Later changes can be tracked in SCM.
74 */
75
76#include <linux/kernel.h>
77#include <linux/init.h>
78#include <linux/slab.h>
79#include <linux/stat.h>
80#include <linux/module.h>
81#include <linux/usb/input.h>
82
83#define DRIVER_AUTHOR "Marko Friedemann <mfr@bmx-chemnitz.de>"
84#define DRIVER_DESC "X-Box pad driver"
85
86#define XPAD_PKT_LEN 32
87
88/* xbox d-pads should map to buttons, as is required for DDR pads
89   but we map them to axes when possible to simplify things */
90#define MAP_DPAD_TO_BUTTONS		(1 << 0)
91#define MAP_TRIGGERS_TO_BUTTONS		(1 << 1)
92#define MAP_STICKS_TO_NULL		(1 << 2)
93#define DANCEPAD_MAP_CONFIG	(MAP_DPAD_TO_BUTTONS |			\
94				MAP_TRIGGERS_TO_BUTTONS | MAP_STICKS_TO_NULL)
95
96#define XTYPE_XBOX        0
97#define XTYPE_XBOX360     1
98#define XTYPE_XBOX360W    2
99#define XTYPE_UNKNOWN     3
100
101static int dpad_to_buttons;
102module_param(dpad_to_buttons, bool, S_IRUGO);
103MODULE_PARM_DESC(dpad_to_buttons, "Map D-PAD to buttons rather than axes for unknown pads");
104
105static int triggers_to_buttons;
106module_param(triggers_to_buttons, bool, S_IRUGO);
107MODULE_PARM_DESC(triggers_to_buttons, "Map triggers to buttons rather than axes for unknown pads");
108
109static int sticks_to_null;
110module_param(sticks_to_null, bool, S_IRUGO);
111MODULE_PARM_DESC(sticks_to_null, "Do not map sticks at all for unknown pads");
112
113static const struct xpad_device {
114	u16 idVendor;
115	u16 idProduct;
116	char *name;
117	u8 mapping;
118	u8 xtype;
119} xpad_device[] = {
120	{ 0x045e, 0x0202, "Microsoft X-Box pad v1 (US)", 0, XTYPE_XBOX },
121	{ 0x045e, 0x0289, "Microsoft X-Box pad v2 (US)", 0, XTYPE_XBOX },
122	{ 0x045e, 0x0285, "Microsoft X-Box pad (Japan)", 0, XTYPE_XBOX },
123	{ 0x045e, 0x0287, "Microsoft Xbox Controller S", 0, XTYPE_XBOX },
124	{ 0x045e, 0x0719, "Xbox 360 Wireless Receiver", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
125	{ 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", DANCEPAD_MAP_CONFIG, XTYPE_XBOX },
126	{ 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", 0, XTYPE_XBOX },
127	{ 0x046d, 0xc242, "Logitech Chillstream Controller", 0, XTYPE_XBOX360 },
128	{ 0x046d, 0xca84, "Logitech Xbox Cordless Controller", 0, XTYPE_XBOX },
129	{ 0x046d, 0xca88, "Logitech Compact Controller for Xbox", 0, XTYPE_XBOX },
130	{ 0x05fd, 0x1007, "Mad Catz Controller (unverified)", 0, XTYPE_XBOX },
131	{ 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)", 0, XTYPE_XBOX },
132	{ 0x0738, 0x4516, "Mad Catz Control Pad", 0, XTYPE_XBOX },
133	{ 0x0738, 0x4522, "Mad Catz LumiCON", 0, XTYPE_XBOX },
134	{ 0x0738, 0x4526, "Mad Catz Control Pad Pro", 0, XTYPE_XBOX },
135	{ 0x0738, 0x4536, "Mad Catz MicroCON", 0, XTYPE_XBOX },
136	{ 0x0738, 0x4540, "Mad Catz Beat Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
137	{ 0x0738, 0x4556, "Mad Catz Lynx Wireless Controller", 0, XTYPE_XBOX },
138	{ 0x0738, 0x4716, "Mad Catz Wired Xbox 360 Controller", 0, XTYPE_XBOX360 },
139	{ 0x0738, 0x4738, "Mad Catz Wired Xbox 360 Controller (SFIV)", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
140	{ 0x0738, 0x6040, "Mad Catz Beat Pad Pro", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
141	{ 0x0c12, 0x8802, "Zeroplus Xbox Controller", 0, XTYPE_XBOX },
142	{ 0x0c12, 0x880a, "Pelican Eclipse PL-2023", 0, XTYPE_XBOX },
143	{ 0x0c12, 0x8810, "Zeroplus Xbox Controller", 0, XTYPE_XBOX },
144	{ 0x0c12, 0x9902, "HAMA VibraX - *FAULTY HARDWARE*", 0, XTYPE_XBOX },
145	{ 0x0e4c, 0x1097, "Radica Gamester Controller", 0, XTYPE_XBOX },
146	{ 0x0e4c, 0x2390, "Radica Games Jtech Controller", 0, XTYPE_XBOX },
147	{ 0x0e6f, 0x0003, "Logic3 Freebird wireless Controller", 0, XTYPE_XBOX },
148	{ 0x0e6f, 0x0005, "Eclipse wireless Controller", 0, XTYPE_XBOX },
149	{ 0x0e6f, 0x0006, "Edge wireless Controller", 0, XTYPE_XBOX },
150	{ 0x0e6f, 0x0006, "Pelican 'TSZ' Wired Xbox 360 Controller", 0, XTYPE_XBOX360 },
151	{ 0x0e6f, 0x0201, "Pelican PL-3601 'TSZ' Wired Xbox 360 Controller", 0, XTYPE_XBOX360 },
152	{ 0x0e8f, 0x0201, "SmartJoy Frag Xpad/PS2 adaptor", 0, XTYPE_XBOX },
153	{ 0x0f30, 0x0202, "Joytech Advanced Controller", 0, XTYPE_XBOX },
154	{ 0x0f30, 0x8888, "BigBen XBMiniPad Controller", 0, XTYPE_XBOX },
155	{ 0x102c, 0xff0c, "Joytech Wireless Advanced Controller", 0, XTYPE_XBOX },
156	{ 0x12ab, 0x8809, "Xbox DDR dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
157	{ 0x1430, 0x4748, "RedOctane Guitar Hero X-plorer", 0, XTYPE_XBOX360 },
158	{ 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
159	{ 0x146b, 0x0601, "BigBen Interactive XBOX 360 Controller", 0, XTYPE_XBOX360 },
160	{ 0x045e, 0x028e, "Microsoft X-Box 360 pad", 0, XTYPE_XBOX360 },
161	{ 0x1bad, 0x0003, "Harmonix Rock Band Drumkit", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
162	{ 0x0f0d, 0x0016, "Hori Real Arcade Pro.EX", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
163	{ 0x0f0d, 0x000d, "Hori Fighting Stick EX2", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
164	{ 0xffff, 0xffff, "Chinese-made Xbox Controller", 0, XTYPE_XBOX },
165	{ 0x0000, 0x0000, "Generic X-Box pad", 0, XTYPE_UNKNOWN }
166};
167
168/* buttons shared with xbox and xbox360 */
169static const signed short xpad_common_btn[] = {
170	BTN_A, BTN_B, BTN_X, BTN_Y,			/* "analog" buttons */
171	BTN_START, BTN_SELECT, BTN_THUMBL, BTN_THUMBR,	/* start/back/sticks */
172	-1						/* terminating entry */
173};
174
175/* original xbox controllers only */
176static const signed short xpad_btn[] = {
177	BTN_C, BTN_Z,		/* "analog" buttons */
178	-1			/* terminating entry */
179};
180
181/* used when dpad is mapped to buttons */
182static const signed short xpad_btn_pad[] = {
183	BTN_TRIGGER_HAPPY1, BTN_TRIGGER_HAPPY2,		/* d-pad left, right */
184	BTN_TRIGGER_HAPPY3, BTN_TRIGGER_HAPPY4,		/* d-pad up, down */
185	-1				/* terminating entry */
186};
187
188/* used when triggers are mapped to buttons */
189static const signed short xpad_btn_triggers[] = {
190	BTN_TL2, BTN_TR2,		/* triggers left/right */
191	-1
192};
193
194
195static const signed short xpad360_btn[] = {  /* buttons for x360 controller */
196	BTN_TL, BTN_TR,		/* Button LB/RB */
197	BTN_MODE,		/* The big X button */
198	-1
199};
200
201static const signed short xpad_abs[] = {
202	ABS_X, ABS_Y,		/* left stick */
203	ABS_RX, ABS_RY,		/* right stick */
204	-1			/* terminating entry */
205};
206
207/* used when dpad is mapped to axes */
208static const signed short xpad_abs_pad[] = {
209	ABS_HAT0X, ABS_HAT0Y,	/* d-pad axes */
210	-1			/* terminating entry */
211};
212
213/* used when triggers are mapped to axes */
214static const signed short xpad_abs_triggers[] = {
215	ABS_Z, ABS_RZ,		/* triggers left/right */
216	-1
217};
218
219/* Xbox 360 has a vendor-specific class, so we cannot match it with only
220 * USB_INTERFACE_INFO (also specifically refused by USB subsystem), so we
221 * match against vendor id as well. Wired Xbox 360 devices have protocol 1,
222 * wireless controllers have protocol 129. */
223#define XPAD_XBOX360_VENDOR_PROTOCOL(vend,pr) \
224	.match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO, \
225	.idVendor = (vend), \
226	.bInterfaceClass = USB_CLASS_VENDOR_SPEC, \
227	.bInterfaceSubClass = 93, \
228	.bInterfaceProtocol = (pr)
229#define XPAD_XBOX360_VENDOR(vend) \
230	{ XPAD_XBOX360_VENDOR_PROTOCOL(vend,1) }, \
231	{ XPAD_XBOX360_VENDOR_PROTOCOL(vend,129) }
232
233static struct usb_device_id xpad_table [] = {
234	{ USB_INTERFACE_INFO('X', 'B', 0) },	/* X-Box USB-IF not approved class */
235	XPAD_XBOX360_VENDOR(0x045e),		/* Microsoft X-Box 360 controllers */
236	XPAD_XBOX360_VENDOR(0x046d),		/* Logitech X-Box 360 style controllers */
237	XPAD_XBOX360_VENDOR(0x0738),		/* Mad Catz X-Box 360 controllers */
238	XPAD_XBOX360_VENDOR(0x0e6f),		/* 0x0e6f X-Box 360 controllers */
239	XPAD_XBOX360_VENDOR(0x1430),		/* RedOctane X-Box 360 controllers */
240	XPAD_XBOX360_VENDOR(0x146b),		/* BigBen Interactive Controllers */
241	XPAD_XBOX360_VENDOR(0x1bad),		/* Rock Band Drums */
242	XPAD_XBOX360_VENDOR(0x0f0d),            /* Hori Controllers */
243	{ }
244};
245
246MODULE_DEVICE_TABLE (usb, xpad_table);
247
248struct usb_xpad {
249	struct input_dev *dev;		/* input device interface */
250	struct usb_device *udev;	/* usb device */
251
252	int pad_present;
253
254	struct urb *irq_in;		/* urb for interrupt in report */
255	unsigned char *idata;		/* input data */
256	dma_addr_t idata_dma;
257
258	struct urb *bulk_out;
259	unsigned char *bdata;
260
261#if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS)
262	struct urb *irq_out;		/* urb for interrupt out report */
263	unsigned char *odata;		/* output data */
264	dma_addr_t odata_dma;
265	struct mutex odata_mutex;
266#endif
267
268#if defined(CONFIG_JOYSTICK_XPAD_LEDS)
269	struct xpad_led *led;
270#endif
271
272	char phys[64];			/* physical device path */
273
274	int mapping;			/* map d-pad to buttons or to axes */
275	int xtype;			/* type of xbox device */
276};
277
278/*
279 *	xpad_process_packet
280 *
281 *	Completes a request by converting the data into events for the
282 *	input subsystem.
283 *
284 *	The used report descriptor was taken from ITO Takayukis website:
285 *	 http://euc.jp/periphs/xbox-controller.ja.html
286 */
287
288static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
289{
290	struct input_dev *dev = xpad->dev;
291
292	if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
293		/* left stick */
294		input_report_abs(dev, ABS_X,
295				 (__s16) le16_to_cpup((__le16 *)(data + 12)));
296		input_report_abs(dev, ABS_Y,
297				 ~(__s16) le16_to_cpup((__le16 *)(data + 14)));
298
299		/* right stick */
300		input_report_abs(dev, ABS_RX,
301				 (__s16) le16_to_cpup((__le16 *)(data + 16)));
302		input_report_abs(dev, ABS_RY,
303				 ~(__s16) le16_to_cpup((__le16 *)(data + 18)));
304	}
305
306	/* triggers left/right */
307	if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
308		input_report_key(dev, BTN_TL2, data[10]);
309		input_report_key(dev, BTN_TR2, data[11]);
310	} else {
311		input_report_abs(dev, ABS_Z, data[10]);
312		input_report_abs(dev, ABS_RZ, data[11]);
313	}
314
315	/* digital pad */
316	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
317		/* dpad as buttons (left, right, up, down) */
318		input_report_key(dev, BTN_TRIGGER_HAPPY1, data[2] & 0x04);
319		input_report_key(dev, BTN_TRIGGER_HAPPY2, data[2] & 0x08);
320		input_report_key(dev, BTN_TRIGGER_HAPPY3, data[2] & 0x01);
321		input_report_key(dev, BTN_TRIGGER_HAPPY4, data[2] & 0x02);
322	} else {
323		input_report_abs(dev, ABS_HAT0X,
324				 !!(data[2] & 0x08) - !!(data[2] & 0x04));
325		input_report_abs(dev, ABS_HAT0Y,
326				 !!(data[2] & 0x02) - !!(data[2] & 0x01));
327	}
328
329	/* start/back buttons and stick press left/right */
330	input_report_key(dev, BTN_START,  data[2] & 0x10);
331	input_report_key(dev, BTN_SELECT, data[2] & 0x20);
332	input_report_key(dev, BTN_THUMBL, data[2] & 0x40);
333	input_report_key(dev, BTN_THUMBR, data[2] & 0x80);
334
335	/* "analog" buttons A, B, X, Y */
336	input_report_key(dev, BTN_A, data[4]);
337	input_report_key(dev, BTN_B, data[5]);
338	input_report_key(dev, BTN_X, data[6]);
339	input_report_key(dev, BTN_Y, data[7]);
340
341	/* "analog" buttons black, white */
342	input_report_key(dev, BTN_C, data[8]);
343	input_report_key(dev, BTN_Z, data[9]);
344
345	input_sync(dev);
346}
347
348/*
349 *	xpad360_process_packet
350 *
351 *	Completes a request by converting the data into events for the
352 *	input subsystem. It is version for xbox 360 controller
353 *
354 *	The used report descriptor was taken from:
355 *		http://www.free60.org/wiki/Gamepad
356 */
357
358static void xpad360_process_packet(struct usb_xpad *xpad,
359				   u16 cmd, unsigned char *data)
360{
361	struct input_dev *dev = xpad->dev;
362
363	/* digital pad */
364	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
365		/* dpad as buttons (left, right, up, down) */
366		input_report_key(dev, BTN_TRIGGER_HAPPY1, data[2] & 0x04);
367		input_report_key(dev, BTN_TRIGGER_HAPPY2, data[2] & 0x08);
368		input_report_key(dev, BTN_TRIGGER_HAPPY3, data[2] & 0x01);
369		input_report_key(dev, BTN_TRIGGER_HAPPY4, data[2] & 0x02);
370	} else {
371		input_report_abs(dev, ABS_HAT0X,
372				 !!(data[2] & 0x08) - !!(data[2] & 0x04));
373		input_report_abs(dev, ABS_HAT0Y,
374				 !!(data[2] & 0x02) - !!(data[2] & 0x01));
375	}
376
377	/* start/back buttons */
378	input_report_key(dev, BTN_START,  data[2] & 0x10);
379	input_report_key(dev, BTN_SELECT, data[2] & 0x20);
380
381	/* stick press left/right */
382	input_report_key(dev, BTN_THUMBL, data[2] & 0x40);
383	input_report_key(dev, BTN_THUMBR, data[2] & 0x80);
384
385	/* buttons A,B,X,Y,TL,TR and MODE */
386	input_report_key(dev, BTN_A,	data[3] & 0x10);
387	input_report_key(dev, BTN_B,	data[3] & 0x20);
388	input_report_key(dev, BTN_X,	data[3] & 0x40);
389	input_report_key(dev, BTN_Y,	data[3] & 0x80);
390	input_report_key(dev, BTN_TL,	data[3] & 0x01);
391	input_report_key(dev, BTN_TR,	data[3] & 0x02);
392	input_report_key(dev, BTN_MODE,	data[3] & 0x04);
393
394	if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
395		/* left stick */
396		input_report_abs(dev, ABS_X,
397				 (__s16) le16_to_cpup((__le16 *)(data + 6)));
398		input_report_abs(dev, ABS_Y,
399				 ~(__s16) le16_to_cpup((__le16 *)(data + 8)));
400
401		/* right stick */
402		input_report_abs(dev, ABS_RX,
403				 (__s16) le16_to_cpup((__le16 *)(data + 10)));
404		input_report_abs(dev, ABS_RY,
405				 ~(__s16) le16_to_cpup((__le16 *)(data + 12)));
406	}
407
408	/* triggers left/right */
409	if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
410		input_report_key(dev, BTN_TL2, data[4]);
411		input_report_key(dev, BTN_TR2, data[5]);
412	} else {
413		input_report_abs(dev, ABS_Z, data[4]);
414		input_report_abs(dev, ABS_RZ, data[5]);
415	}
416
417	input_sync(dev);
418}
419
420/*
421 * xpad360w_process_packet
422 *
423 * Completes a request by converting the data into events for the
424 * input subsystem. It is version for xbox 360 wireless controller.
425 *
426 * Byte.Bit
427 * 00.1 - Status change: The controller or headset has connected/disconnected
428 *                       Bits 01.7 and 01.6 are valid
429 * 01.7 - Controller present
430 * 01.6 - Headset present
431 * 01.1 - Pad state (Bytes 4+) valid
432 *
433 */
434
435static void xpad360w_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
436{
437	/* Presence change */
438	if (data[0] & 0x08) {
439		if (data[1] & 0x80) {
440			xpad->pad_present = 1;
441			usb_submit_urb(xpad->bulk_out, GFP_ATOMIC);
442		} else
443			xpad->pad_present = 0;
444	}
445
446	/* Valid pad data */
447	if (!(data[1] & 0x1))
448		return;
449
450	xpad360_process_packet(xpad, cmd, &data[4]);
451}
452
453static void xpad_irq_in(struct urb *urb)
454{
455	struct usb_xpad *xpad = urb->context;
456	int retval, status;
457
458	status = urb->status;
459
460	switch (status) {
461	case 0:
462		/* success */
463		break;
464	case -ECONNRESET:
465	case -ENOENT:
466	case -ESHUTDOWN:
467		/* this urb is terminated, clean up */
468		dbg("%s - urb shutting down with status: %d",
469			__func__, status);
470		return;
471	default:
472		dbg("%s - nonzero urb status received: %d",
473			__func__, status);
474		goto exit;
475	}
476
477	switch (xpad->xtype) {
478	case XTYPE_XBOX360:
479		xpad360_process_packet(xpad, 0, xpad->idata);
480		break;
481	case XTYPE_XBOX360W:
482		xpad360w_process_packet(xpad, 0, xpad->idata);
483		break;
484	default:
485		xpad_process_packet(xpad, 0, xpad->idata);
486	}
487
488exit:
489	retval = usb_submit_urb(urb, GFP_ATOMIC);
490	if (retval)
491		err ("%s - usb_submit_urb failed with result %d",
492		     __func__, retval);
493}
494
495static void xpad_bulk_out(struct urb *urb)
496{
497	switch (urb->status) {
498	case 0:
499		/* success */
500		break;
501	case -ECONNRESET:
502	case -ENOENT:
503	case -ESHUTDOWN:
504		/* this urb is terminated, clean up */
505		dbg("%s - urb shutting down with status: %d", __func__, urb->status);
506		break;
507	default:
508		dbg("%s - nonzero urb status received: %d", __func__, urb->status);
509	}
510}
511
512#if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS)
513static void xpad_irq_out(struct urb *urb)
514{
515	int retval, status;
516
517	status = urb->status;
518
519	switch (status) {
520	case 0:
521		/* success */
522		return;
523
524	case -ECONNRESET:
525	case -ENOENT:
526	case -ESHUTDOWN:
527		/* this urb is terminated, clean up */
528		dbg("%s - urb shutting down with status: %d", __func__, status);
529		return;
530
531	default:
532		dbg("%s - nonzero urb status received: %d", __func__, status);
533		goto exit;
534	}
535
536exit:
537	retval = usb_submit_urb(urb, GFP_ATOMIC);
538	if (retval)
539		err("%s - usb_submit_urb failed with result %d",
540		    __func__, retval);
541}
542
543static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad)
544{
545	struct usb_endpoint_descriptor *ep_irq_out;
546	int error = -ENOMEM;
547
548	if (xpad->xtype != XTYPE_XBOX360 && xpad->xtype != XTYPE_XBOX)
549		return 0;
550
551	xpad->odata = usb_alloc_coherent(xpad->udev, XPAD_PKT_LEN,
552					 GFP_KERNEL, &xpad->odata_dma);
553	if (!xpad->odata)
554		goto fail1;
555
556	mutex_init(&xpad->odata_mutex);
557
558	xpad->irq_out = usb_alloc_urb(0, GFP_KERNEL);
559	if (!xpad->irq_out)
560		goto fail2;
561
562	ep_irq_out = &intf->cur_altsetting->endpoint[1].desc;
563	usb_fill_int_urb(xpad->irq_out, xpad->udev,
564			 usb_sndintpipe(xpad->udev, ep_irq_out->bEndpointAddress),
565			 xpad->odata, XPAD_PKT_LEN,
566			 xpad_irq_out, xpad, ep_irq_out->bInterval);
567	xpad->irq_out->transfer_dma = xpad->odata_dma;
568	xpad->irq_out->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
569
570	return 0;
571
572 fail2:	usb_free_coherent(xpad->udev, XPAD_PKT_LEN, xpad->odata, xpad->odata_dma);
573 fail1:	return error;
574}
575
576static void xpad_stop_output(struct usb_xpad *xpad)
577{
578	if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype == XTYPE_XBOX)
579		usb_kill_urb(xpad->irq_out);
580}
581
582static void xpad_deinit_output(struct usb_xpad *xpad)
583{
584	if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype == XTYPE_XBOX) {
585		usb_free_urb(xpad->irq_out);
586		usb_free_coherent(xpad->udev, XPAD_PKT_LEN,
587				xpad->odata, xpad->odata_dma);
588	}
589}
590#else
591static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad) { return 0; }
592static void xpad_deinit_output(struct usb_xpad *xpad) {}
593static void xpad_stop_output(struct usb_xpad *xpad) {}
594#endif
595
596#ifdef CONFIG_JOYSTICK_XPAD_FF
597static int xpad_play_effect(struct input_dev *dev, void *data, struct ff_effect *effect)
598{
599	struct usb_xpad *xpad = input_get_drvdata(dev);
600
601	if (effect->type == FF_RUMBLE) {
602		__u16 strong = effect->u.rumble.strong_magnitude;
603		__u16 weak = effect->u.rumble.weak_magnitude;
604
605		switch (xpad->xtype) {
606
607		case XTYPE_XBOX:
608			xpad->odata[0] = 0x00;
609			xpad->odata[1] = 0x06;
610			xpad->odata[2] = 0x00;
611			xpad->odata[3] = strong / 256;	/* left actuator */
612			xpad->odata[4] = 0x00;
613			xpad->odata[5] = weak / 256;	/* right actuator */
614			xpad->irq_out->transfer_buffer_length = 6;
615
616			return usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
617
618		case XTYPE_XBOX360:
619			xpad->odata[0] = 0x00;
620			xpad->odata[1] = 0x08;
621			xpad->odata[2] = 0x00;
622			xpad->odata[3] = strong / 256;  /* left actuator? */
623			xpad->odata[4] = weak / 256;	/* right actuator? */
624			xpad->odata[5] = 0x00;
625			xpad->odata[6] = 0x00;
626			xpad->odata[7] = 0x00;
627			xpad->irq_out->transfer_buffer_length = 8;
628
629			return usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
630
631		default:
632			dbg("%s - rumble command sent to unsupported xpad type: %d",
633				__func__, xpad->xtype);
634			return -1;
635		}
636	}
637
638	return 0;
639}
640
641static int xpad_init_ff(struct usb_xpad *xpad)
642{
643	if (xpad->xtype != XTYPE_XBOX360 && xpad->xtype != XTYPE_XBOX)
644		return 0;
645
646	input_set_capability(xpad->dev, EV_FF, FF_RUMBLE);
647
648	return input_ff_create_memless(xpad->dev, NULL, xpad_play_effect);
649}
650
651#else
652static int xpad_init_ff(struct usb_xpad *xpad) { return 0; }
653#endif
654
655#if defined(CONFIG_JOYSTICK_XPAD_LEDS)
656#include <linux/leds.h>
657
658struct xpad_led {
659	char name[16];
660	struct led_classdev led_cdev;
661	struct usb_xpad *xpad;
662};
663
664static void xpad_send_led_command(struct usb_xpad *xpad, int command)
665{
666	if (command >= 0 && command < 14) {
667		mutex_lock(&xpad->odata_mutex);
668		xpad->odata[0] = 0x01;
669		xpad->odata[1] = 0x03;
670		xpad->odata[2] = command;
671		xpad->irq_out->transfer_buffer_length = 3;
672		usb_submit_urb(xpad->irq_out, GFP_KERNEL);
673		mutex_unlock(&xpad->odata_mutex);
674	}
675}
676
677static void xpad_led_set(struct led_classdev *led_cdev,
678			 enum led_brightness value)
679{
680	struct xpad_led *xpad_led = container_of(led_cdev,
681						 struct xpad_led, led_cdev);
682
683	xpad_send_led_command(xpad_led->xpad, value);
684}
685
686static int xpad_led_probe(struct usb_xpad *xpad)
687{
688	static atomic_t led_seq	= ATOMIC_INIT(0);
689	long led_no;
690	struct xpad_led *led;
691	struct led_classdev *led_cdev;
692	int error;
693
694	if (xpad->xtype != XTYPE_XBOX360)
695		return 0;
696
697	xpad->led = led = kzalloc(sizeof(struct xpad_led), GFP_KERNEL);
698	if (!led)
699		return -ENOMEM;
700
701	led_no = (long)atomic_inc_return(&led_seq) - 1;
702
703	snprintf(led->name, sizeof(led->name), "xpad%ld", led_no);
704	led->xpad = xpad;
705
706	led_cdev = &led->led_cdev;
707	led_cdev->name = led->name;
708	led_cdev->brightness_set = xpad_led_set;
709
710	error = led_classdev_register(&xpad->udev->dev, led_cdev);
711	if (error) {
712		kfree(led);
713		xpad->led = NULL;
714		return error;
715	}
716
717	/*
718	 * Light up the segment corresponding to controller number
719	 */
720	xpad_send_led_command(xpad, (led_no % 4) + 2);
721
722	return 0;
723}
724
725static void xpad_led_disconnect(struct usb_xpad *xpad)
726{
727	struct xpad_led *xpad_led = xpad->led;
728
729	if (xpad_led) {
730		led_classdev_unregister(&xpad_led->led_cdev);
731		kfree(xpad_led->name);
732	}
733}
734#else
735static int xpad_led_probe(struct usb_xpad *xpad) { return 0; }
736static void xpad_led_disconnect(struct usb_xpad *xpad) { }
737#endif
738
739
740static int xpad_open(struct input_dev *dev)
741{
742	struct usb_xpad *xpad = input_get_drvdata(dev);
743
744	/* URB was submitted in probe */
745	if(xpad->xtype == XTYPE_XBOX360W)
746		return 0;
747
748	xpad->irq_in->dev = xpad->udev;
749	if (usb_submit_urb(xpad->irq_in, GFP_KERNEL))
750		return -EIO;
751
752	return 0;
753}
754
755static void xpad_close(struct input_dev *dev)
756{
757	struct usb_xpad *xpad = input_get_drvdata(dev);
758
759	if(xpad->xtype != XTYPE_XBOX360W)
760		usb_kill_urb(xpad->irq_in);
761	xpad_stop_output(xpad);
762}
763
764static void xpad_set_up_abs(struct input_dev *input_dev, signed short abs)
765{
766	set_bit(abs, input_dev->absbit);
767
768	switch (abs) {
769	case ABS_X:
770	case ABS_Y:
771	case ABS_RX:
772	case ABS_RY:	/* the two sticks */
773		input_set_abs_params(input_dev, abs, -32768, 32767, 16, 128);
774		break;
775	case ABS_Z:
776	case ABS_RZ:	/* the triggers (if mapped to axes) */
777		input_set_abs_params(input_dev, abs, 0, 255, 0, 0);
778		break;
779	case ABS_HAT0X:
780	case ABS_HAT0Y:	/* the d-pad (only if dpad is mapped to axes */
781		input_set_abs_params(input_dev, abs, -1, 1, 0, 0);
782		break;
783	}
784}
785
786static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id)
787{
788	struct usb_device *udev = interface_to_usbdev(intf);
789	struct usb_xpad *xpad;
790	struct input_dev *input_dev;
791	struct usb_endpoint_descriptor *ep_irq_in;
792	int i;
793	int error = -ENOMEM;
794
795	for (i = 0; xpad_device[i].idVendor; i++) {
796		if ((le16_to_cpu(udev->descriptor.idVendor) == xpad_device[i].idVendor) &&
797		    (le16_to_cpu(udev->descriptor.idProduct) == xpad_device[i].idProduct))
798			break;
799	}
800
801	xpad = kzalloc(sizeof(struct usb_xpad), GFP_KERNEL);
802	input_dev = input_allocate_device();
803	if (!xpad || !input_dev)
804		goto fail1;
805
806	xpad->idata = usb_alloc_coherent(udev, XPAD_PKT_LEN,
807					 GFP_KERNEL, &xpad->idata_dma);
808	if (!xpad->idata)
809		goto fail1;
810
811	xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL);
812	if (!xpad->irq_in)
813		goto fail2;
814
815	xpad->udev = udev;
816	xpad->mapping = xpad_device[i].mapping;
817	xpad->xtype = xpad_device[i].xtype;
818
819	if (xpad->xtype == XTYPE_UNKNOWN) {
820		if (intf->cur_altsetting->desc.bInterfaceClass == USB_CLASS_VENDOR_SPEC) {
821			if (intf->cur_altsetting->desc.bInterfaceProtocol == 129)
822				xpad->xtype = XTYPE_XBOX360W;
823			else
824				xpad->xtype = XTYPE_XBOX360;
825		} else
826			xpad->xtype = XTYPE_XBOX;
827
828		if (dpad_to_buttons)
829			xpad->mapping |= MAP_DPAD_TO_BUTTONS;
830		if (triggers_to_buttons)
831			xpad->mapping |= MAP_TRIGGERS_TO_BUTTONS;
832		if (sticks_to_null)
833			xpad->mapping |= MAP_STICKS_TO_NULL;
834	}
835
836	xpad->dev = input_dev;
837	usb_make_path(udev, xpad->phys, sizeof(xpad->phys));
838	strlcat(xpad->phys, "/input0", sizeof(xpad->phys));
839
840	input_dev->name = xpad_device[i].name;
841	input_dev->phys = xpad->phys;
842	usb_to_input_id(udev, &input_dev->id);
843	input_dev->dev.parent = &intf->dev;
844
845	input_set_drvdata(input_dev, xpad);
846
847	input_dev->open = xpad_open;
848	input_dev->close = xpad_close;
849
850	input_dev->evbit[0] = BIT_MASK(EV_KEY);
851
852	if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
853		input_dev->evbit[0] |= BIT_MASK(EV_ABS);
854		/* set up axes */
855		for (i = 0; xpad_abs[i] >= 0; i++)
856			xpad_set_up_abs(input_dev, xpad_abs[i]);
857	}
858
859	/* set up standard buttons */
860	for (i = 0; xpad_common_btn[i] >= 0; i++)
861		__set_bit(xpad_common_btn[i], input_dev->keybit);
862
863	/* set up model-specific ones */
864	if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype == XTYPE_XBOX360W) {
865		for (i = 0; xpad360_btn[i] >= 0; i++)
866			__set_bit(xpad360_btn[i], input_dev->keybit);
867	} else {
868		for (i = 0; xpad_btn[i] >= 0; i++)
869			__set_bit(xpad_btn[i], input_dev->keybit);
870	}
871
872	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
873		for (i = 0; xpad_btn_pad[i] >= 0; i++)
874			__set_bit(xpad_btn_pad[i], input_dev->keybit);
875	} else {
876		for (i = 0; xpad_abs_pad[i] >= 0; i++)
877		    xpad_set_up_abs(input_dev, xpad_abs_pad[i]);
878	}
879
880	if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
881		for (i = 0; xpad_btn_triggers[i] >= 0; i++)
882			__set_bit(xpad_btn_triggers[i], input_dev->keybit);
883	} else {
884		for (i = 0; xpad_abs_triggers[i] >= 0; i++)
885			xpad_set_up_abs(input_dev, xpad_abs_triggers[i]);
886	}
887
888	error = xpad_init_output(intf, xpad);
889	if (error)
890		goto fail2;
891
892	error = xpad_init_ff(xpad);
893	if (error)
894		goto fail3;
895
896	error = xpad_led_probe(xpad);
897	if (error)
898		goto fail3;
899
900	ep_irq_in = &intf->cur_altsetting->endpoint[0].desc;
901	usb_fill_int_urb(xpad->irq_in, udev,
902			 usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress),
903			 xpad->idata, XPAD_PKT_LEN, xpad_irq_in,
904			 xpad, ep_irq_in->bInterval);
905	xpad->irq_in->transfer_dma = xpad->idata_dma;
906	xpad->irq_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
907
908	error = input_register_device(xpad->dev);
909	if (error)
910		goto fail4;
911
912	usb_set_intfdata(intf, xpad);
913
914	/*
915	 * Submit the int URB immediatly rather than waiting for open
916	 * because we get status messages from the device whether
917	 * or not any controllers are attached.  In fact, it's
918	 * exactly the message that a controller has arrived that
919	 * we're waiting for.
920	 */
921	if (xpad->xtype == XTYPE_XBOX360W) {
922		xpad->irq_in->dev = xpad->udev;
923		error = usb_submit_urb(xpad->irq_in, GFP_KERNEL);
924		if (error)
925			goto fail4;
926
927		/*
928		 * Setup the message to set the LEDs on the
929		 * controller when it shows up
930		 */
931		xpad->bulk_out = usb_alloc_urb(0, GFP_KERNEL);
932		if(!xpad->bulk_out)
933			goto fail5;
934
935		xpad->bdata = kzalloc(XPAD_PKT_LEN, GFP_KERNEL);
936		if(!xpad->bdata)
937			goto fail6;
938
939		xpad->bdata[2] = 0x08;
940		switch (intf->cur_altsetting->desc.bInterfaceNumber) {
941		case 0:
942			xpad->bdata[3] = 0x42;
943			break;
944		case 2:
945			xpad->bdata[3] = 0x43;
946			break;
947		case 4:
948			xpad->bdata[3] = 0x44;
949			break;
950		case 6:
951			xpad->bdata[3] = 0x45;
952		}
953
954		ep_irq_in = &intf->cur_altsetting->endpoint[1].desc;
955		usb_fill_bulk_urb(xpad->bulk_out, udev,
956				usb_sndbulkpipe(udev, ep_irq_in->bEndpointAddress),
957				xpad->bdata, XPAD_PKT_LEN, xpad_bulk_out, xpad);
958	}
959
960	return 0;
961
962 fail6:	usb_free_urb(xpad->bulk_out);
963 fail5:	usb_kill_urb(xpad->irq_in);
964 fail4:	usb_free_urb(xpad->irq_in);
965 fail3:	xpad_deinit_output(xpad);
966 fail2:	usb_free_coherent(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
967 fail1:	input_free_device(input_dev);
968	kfree(xpad);
969	return error;
970
971}
972
973static void xpad_disconnect(struct usb_interface *intf)
974{
975	struct usb_xpad *xpad = usb_get_intfdata (intf);
976
977	usb_set_intfdata(intf, NULL);
978	if (xpad) {
979		xpad_led_disconnect(xpad);
980		input_unregister_device(xpad->dev);
981		xpad_deinit_output(xpad);
982		if (xpad->xtype == XTYPE_XBOX360W) {
983			usb_kill_urb(xpad->bulk_out);
984			usb_free_urb(xpad->bulk_out);
985			usb_kill_urb(xpad->irq_in);
986		}
987		usb_free_urb(xpad->irq_in);
988		usb_free_coherent(xpad->udev, XPAD_PKT_LEN,
989				xpad->idata, xpad->idata_dma);
990		kfree(xpad);
991	}
992}
993
994static struct usb_driver xpad_driver = {
995	.name		= "xpad",
996	.probe		= xpad_probe,
997	.disconnect	= xpad_disconnect,
998	.id_table	= xpad_table,
999};
1000
1001static int __init usb_xpad_init(void)
1002{
1003	int result = usb_register(&xpad_driver);
1004	if (result == 0)
1005		printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC "\n");
1006	return result;
1007}
1008
1009static void __exit usb_xpad_exit(void)
1010{
1011	usb_deregister(&xpad_driver);
1012}
1013
1014module_init(usb_xpad_init);
1015module_exit(usb_xpad_exit);
1016
1017MODULE_AUTHOR(DRIVER_AUTHOR);
1018MODULE_DESCRIPTION(DRIVER_DESC);
1019MODULE_LICENSE("GPL");
1020