xref: /openbmc/linux/drivers/input/joystick/xpad.c (revision c0e297dc)
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  *  - Xbox One information https://github.com/quantus/xbox-one-controller-protocol
35  *
36  * Thanks to:
37  *  - ITO Takayuki for providing essential xpad information on his website
38  *  - Vojtech Pavlik     - iforce driver / input subsystem
39  *  - Greg Kroah-Hartman - usb-skeleton driver
40  *  - XBOX Linux project - extra USB id's
41  *  - Pekka Pöyry (quantus) - Xbox One controller reverse engineering
42  *
43  * TODO:
44  *  - fine tune axes (especially trigger axes)
45  *  - fix "analog" buttons (reported as digital now)
46  *  - get rumble working
47  *  - need USB IDs for other dance pads
48  *
49  * History:
50  *
51  * 2002-06-27 - 0.0.1 : first version, just said "XBOX HID controller"
52  *
53  * 2002-07-02 - 0.0.2 : basic working version
54  *  - all axes and 9 of the 10 buttons work (german InterAct device)
55  *  - the black button does not work
56  *
57  * 2002-07-14 - 0.0.3 : rework by Vojtech Pavlik
58  *  - indentation fixes
59  *  - usb + input init sequence fixes
60  *
61  * 2002-07-16 - 0.0.4 : minor changes, merge with Vojtech's v0.0.3
62  *  - verified the lack of HID and report descriptors
63  *  - verified that ALL buttons WORK
64  *  - fixed d-pad to axes mapping
65  *
66  * 2002-07-17 - 0.0.5 : simplified d-pad handling
67  *
68  * 2004-10-02 - 0.0.6 : DDR pad support
69  *  - borrowed from the XBOX linux kernel
70  *  - USB id's for commonly used dance pads are present
71  *  - dance pads will map D-PAD to buttons, not axes
72  *  - pass the module paramater 'dpad_to_buttons' to force
73  *    the D-PAD to map to buttons if your pad is not detected
74  *
75  * Later changes can be tracked in SCM.
76  */
77 
78 #include <linux/kernel.h>
79 #include <linux/slab.h>
80 #include <linux/stat.h>
81 #include <linux/module.h>
82 #include <linux/usb/input.h>
83 
84 #define DRIVER_AUTHOR "Marko Friedemann <mfr@bmx-chemnitz.de>"
85 #define DRIVER_DESC "X-Box pad driver"
86 
87 #define XPAD_PKT_LEN 32
88 
89 /* xbox d-pads should map to buttons, as is required for DDR pads
90    but we map them to axes when possible to simplify things */
91 #define MAP_DPAD_TO_BUTTONS		(1 << 0)
92 #define MAP_TRIGGERS_TO_BUTTONS		(1 << 1)
93 #define MAP_STICKS_TO_NULL		(1 << 2)
94 #define DANCEPAD_MAP_CONFIG	(MAP_DPAD_TO_BUTTONS |			\
95 				MAP_TRIGGERS_TO_BUTTONS | MAP_STICKS_TO_NULL)
96 
97 #define XTYPE_XBOX        0
98 #define XTYPE_XBOX360     1
99 #define XTYPE_XBOX360W    2
100 #define XTYPE_XBOXONE     3
101 #define XTYPE_UNKNOWN     4
102 
103 static bool dpad_to_buttons;
104 module_param(dpad_to_buttons, bool, S_IRUGO);
105 MODULE_PARM_DESC(dpad_to_buttons, "Map D-PAD to buttons rather than axes for unknown pads");
106 
107 static bool triggers_to_buttons;
108 module_param(triggers_to_buttons, bool, S_IRUGO);
109 MODULE_PARM_DESC(triggers_to_buttons, "Map triggers to buttons rather than axes for unknown pads");
110 
111 static bool sticks_to_null;
112 module_param(sticks_to_null, bool, S_IRUGO);
113 MODULE_PARM_DESC(sticks_to_null, "Do not map sticks at all for unknown pads");
114 
115 static const struct xpad_device {
116 	u16 idVendor;
117 	u16 idProduct;
118 	char *name;
119 	u8 mapping;
120 	u8 xtype;
121 } xpad_device[] = {
122 	{ 0x045e, 0x0202, "Microsoft X-Box pad v1 (US)", 0, XTYPE_XBOX },
123 	{ 0x045e, 0x0285, "Microsoft X-Box pad (Japan)", 0, XTYPE_XBOX },
124 	{ 0x045e, 0x0287, "Microsoft Xbox Controller S", 0, XTYPE_XBOX },
125 	{ 0x045e, 0x0289, "Microsoft X-Box pad v2 (US)", 0, XTYPE_XBOX },
126 	{ 0x045e, 0x028e, "Microsoft X-Box 360 pad", 0, XTYPE_XBOX360 },
127 	{ 0x045e, 0x02d1, "Microsoft X-Box One pad", 0, XTYPE_XBOXONE },
128 	{ 0x045e, 0x0291, "Xbox 360 Wireless Receiver (XBOX)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
129 	{ 0x045e, 0x0719, "Xbox 360 Wireless Receiver", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
130 	{ 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", 0, XTYPE_XBOX },
131 	{ 0x044f, 0xb326, "Thrustmaster Gamepad GP XID", 0, XTYPE_XBOX360 },
132 	{ 0x046d, 0xc21d, "Logitech Gamepad F310", 0, XTYPE_XBOX360 },
133 	{ 0x046d, 0xc21e, "Logitech Gamepad F510", 0, XTYPE_XBOX360 },
134 	{ 0x046d, 0xc21f, "Logitech Gamepad F710", 0, XTYPE_XBOX360 },
135 	{ 0x046d, 0xc242, "Logitech Chillstream Controller", 0, XTYPE_XBOX360 },
136 	{ 0x046d, 0xca84, "Logitech Xbox Cordless Controller", 0, XTYPE_XBOX },
137 	{ 0x046d, 0xca88, "Logitech Compact Controller for Xbox", 0, XTYPE_XBOX },
138 	{ 0x05fd, 0x1007, "Mad Catz Controller (unverified)", 0, XTYPE_XBOX },
139 	{ 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)", 0, XTYPE_XBOX },
140 	{ 0x0738, 0x4516, "Mad Catz Control Pad", 0, XTYPE_XBOX },
141 	{ 0x0738, 0x4522, "Mad Catz LumiCON", 0, XTYPE_XBOX },
142 	{ 0x0738, 0x4526, "Mad Catz Control Pad Pro", 0, XTYPE_XBOX },
143 	{ 0x0738, 0x4536, "Mad Catz MicroCON", 0, XTYPE_XBOX },
144 	{ 0x0738, 0x4540, "Mad Catz Beat Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
145 	{ 0x0738, 0x4556, "Mad Catz Lynx Wireless Controller", 0, XTYPE_XBOX },
146 	{ 0x0738, 0x4716, "Mad Catz Wired Xbox 360 Controller", 0, XTYPE_XBOX360 },
147 	{ 0x0738, 0x4718, "Mad Catz Street Fighter IV FightStick SE", 0, XTYPE_XBOX360 },
148 	{ 0x0738, 0x4726, "Mad Catz Xbox 360 Controller", 0, XTYPE_XBOX360 },
149 	{ 0x0738, 0x4728, "Mad Catz Street Fighter IV FightPad", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
150 	{ 0x0738, 0x4738, "Mad Catz Wired Xbox 360 Controller (SFIV)", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
151 	{ 0x0738, 0x4740, "Mad Catz Beat Pad", 0, XTYPE_XBOX360 },
152 	{ 0x0738, 0x6040, "Mad Catz Beat Pad Pro", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
153 	{ 0x0738, 0xb726, "Mad Catz Xbox controller - MW2", 0, XTYPE_XBOX360 },
154 	{ 0x0738, 0xbeef, "Mad Catz JOYTECH NEO SE Advanced GamePad", XTYPE_XBOX360 },
155 	{ 0x0738, 0xcb02, "Saitek Cyborg Rumble Pad - PC/Xbox 360", 0, XTYPE_XBOX360 },
156 	{ 0x0738, 0xcb03, "Saitek P3200 Rumble Pad - PC/Xbox 360", 0, XTYPE_XBOX360 },
157 	{ 0x0738, 0xf738, "Super SFIV FightStick TE S", 0, XTYPE_XBOX360 },
158 	{ 0x0c12, 0x8802, "Zeroplus Xbox Controller", 0, XTYPE_XBOX },
159 	{ 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", DANCEPAD_MAP_CONFIG, XTYPE_XBOX },
160 	{ 0x0c12, 0x880a, "Pelican Eclipse PL-2023", 0, XTYPE_XBOX },
161 	{ 0x0c12, 0x8810, "Zeroplus Xbox Controller", 0, XTYPE_XBOX },
162 	{ 0x0c12, 0x9902, "HAMA VibraX - *FAULTY HARDWARE*", 0, XTYPE_XBOX },
163 	{ 0x0d2f, 0x0002, "Andamiro Pump It Up pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
164 	{ 0x0e4c, 0x1097, "Radica Gamester Controller", 0, XTYPE_XBOX },
165 	{ 0x0e4c, 0x2390, "Radica Games Jtech Controller", 0, XTYPE_XBOX },
166 	{ 0x0e6f, 0x0003, "Logic3 Freebird wireless Controller", 0, XTYPE_XBOX },
167 	{ 0x0e6f, 0x0005, "Eclipse wireless Controller", 0, XTYPE_XBOX },
168 	{ 0x0e6f, 0x0006, "Edge wireless Controller", 0, XTYPE_XBOX },
169 	{ 0x0e6f, 0x0105, "HSM3 Xbox360 dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
170 	{ 0x0e6f, 0x0113, "Afterglow AX.1 Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
171 	{ 0x0e6f, 0x0201, "Pelican PL-3601 'TSZ' Wired Xbox 360 Controller", 0, XTYPE_XBOX360 },
172 	{ 0x0e6f, 0x0213, "Afterglow Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
173 	{ 0x0e6f, 0x021f, "Rock Candy Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
174 	{ 0x0e6f, 0x0301, "Logic3 Controller", 0, XTYPE_XBOX360 },
175 	{ 0x0e6f, 0x0401, "Logic3 Controller", 0, XTYPE_XBOX360 },
176 	{ 0x0e8f, 0x0201, "SmartJoy Frag Xpad/PS2 adaptor", 0, XTYPE_XBOX },
177 	{ 0x0e8f, 0x3008, "Generic xbox control (dealextreme)", 0, XTYPE_XBOX },
178 	{ 0x0f0d, 0x000a, "Hori Co. DOA4 FightStick", 0, XTYPE_XBOX360 },
179 	{ 0x0f0d, 0x000d, "Hori Fighting Stick EX2", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
180 	{ 0x0f0d, 0x0016, "Hori Real Arcade Pro.EX", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
181 	{ 0x0f30, 0x0202, "Joytech Advanced Controller", 0, XTYPE_XBOX },
182 	{ 0x0f30, 0x8888, "BigBen XBMiniPad Controller", 0, XTYPE_XBOX },
183 	{ 0x102c, 0xff0c, "Joytech Wireless Advanced Controller", 0, XTYPE_XBOX },
184 	{ 0x12ab, 0x0004, "Honey Bee Xbox360 dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
185 	{ 0x12ab, 0x0301, "PDP AFTERGLOW AX.1", 0, XTYPE_XBOX360 },
186 	{ 0x12ab, 0x8809, "Xbox DDR dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
187 	{ 0x1430, 0x4748, "RedOctane Guitar Hero X-plorer", 0, XTYPE_XBOX360 },
188 	{ 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
189 	{ 0x146b, 0x0601, "BigBen Interactive XBOX 360 Controller", 0, XTYPE_XBOX360 },
190 	{ 0x1532, 0x0037, "Razer Sabertooth", 0, XTYPE_XBOX360 },
191 	{ 0x15e4, 0x3f00, "Power A Mini Pro Elite", 0, XTYPE_XBOX360 },
192 	{ 0x15e4, 0x3f0a, "Xbox Airflo wired controller", 0, XTYPE_XBOX360 },
193 	{ 0x15e4, 0x3f10, "Batarang Xbox 360 controller", 0, XTYPE_XBOX360 },
194 	{ 0x162e, 0xbeef, "Joytech Neo-Se Take2", 0, XTYPE_XBOX360 },
195 	{ 0x1689, 0xfd00, "Razer Onza Tournament Edition", 0, XTYPE_XBOX360 },
196 	{ 0x1689, 0xfd01, "Razer Onza Classic Edition", 0, XTYPE_XBOX360 },
197 	{ 0x24c6, 0x5d04, "Razer Sabertooth", 0, XTYPE_XBOX360 },
198 	{ 0x1bad, 0x0002, "Harmonix Rock Band Guitar", 0, XTYPE_XBOX360 },
199 	{ 0x1bad, 0x0003, "Harmonix Rock Band Drumkit", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
200 	{ 0x1bad, 0xf016, "Mad Catz Xbox 360 Controller", 0, XTYPE_XBOX360 },
201 	{ 0x1bad, 0xf023, "MLG Pro Circuit Controller (Xbox)", 0, XTYPE_XBOX360 },
202 	{ 0x1bad, 0xf028, "Street Fighter IV FightPad", 0, XTYPE_XBOX360 },
203 	{ 0x1bad, 0xf038, "Street Fighter IV FightStick TE", 0, XTYPE_XBOX360 },
204 	{ 0x1bad, 0xf900, "Harmonix Xbox 360 Controller", 0, XTYPE_XBOX360 },
205 	{ 0x1bad, 0xf901, "Gamestop Xbox 360 Controller", 0, XTYPE_XBOX360 },
206 	{ 0x1bad, 0xf903, "Tron Xbox 360 controller", 0, XTYPE_XBOX360 },
207 	{ 0x24c6, 0x5000, "Razer Atrox Arcade Stick", 0, XTYPE_XBOX360 },
208 	{ 0x24c6, 0x5300, "PowerA MINI PROEX Controller", 0, XTYPE_XBOX360 },
209 	{ 0x24c6, 0x5303, "Xbox Airflo wired controller", 0, XTYPE_XBOX360 },
210 	{ 0x24c6, 0x5500, "Hori XBOX 360 EX 2 with Turbo", 0, XTYPE_XBOX360 },
211 	{ 0x24c6, 0x5501, "Hori Real Arcade Pro VX-SA", 0, XTYPE_XBOX360 },
212 	{ 0x24c6, 0x5506, "Hori SOULCALIBUR V Stick", 0, XTYPE_XBOX360 },
213 	{ 0x24c6, 0x5b02, "Thrustmaster, Inc. GPX Controller", 0, XTYPE_XBOX360 },
214 	{ 0x24c6, 0x5b03, "Thrustmaster Ferrari 458 Racing Wheel", 0, XTYPE_XBOX360 },
215 	{ 0xffff, 0xffff, "Chinese-made Xbox Controller", 0, XTYPE_XBOX },
216 	{ 0x0000, 0x0000, "Generic X-Box pad", 0, XTYPE_UNKNOWN }
217 };
218 
219 /* buttons shared with xbox and xbox360 */
220 static const signed short xpad_common_btn[] = {
221 	BTN_A, BTN_B, BTN_X, BTN_Y,			/* "analog" buttons */
222 	BTN_START, BTN_SELECT, BTN_THUMBL, BTN_THUMBR,	/* start/back/sticks */
223 	-1						/* terminating entry */
224 };
225 
226 /* original xbox controllers only */
227 static const signed short xpad_btn[] = {
228 	BTN_C, BTN_Z,		/* "analog" buttons */
229 	-1			/* terminating entry */
230 };
231 
232 /* used when dpad is mapped to buttons */
233 static const signed short xpad_btn_pad[] = {
234 	BTN_TRIGGER_HAPPY1, BTN_TRIGGER_HAPPY2,		/* d-pad left, right */
235 	BTN_TRIGGER_HAPPY3, BTN_TRIGGER_HAPPY4,		/* d-pad up, down */
236 	-1				/* terminating entry */
237 };
238 
239 /* used when triggers are mapped to buttons */
240 static const signed short xpad_btn_triggers[] = {
241 	BTN_TL2, BTN_TR2,		/* triggers left/right */
242 	-1
243 };
244 
245 
246 static const signed short xpad360_btn[] = {  /* buttons for x360 controller */
247 	BTN_TL, BTN_TR,		/* Button LB/RB */
248 	BTN_MODE,		/* The big X button */
249 	-1
250 };
251 
252 static const signed short xpad_abs[] = {
253 	ABS_X, ABS_Y,		/* left stick */
254 	ABS_RX, ABS_RY,		/* right stick */
255 	-1			/* terminating entry */
256 };
257 
258 /* used when dpad is mapped to axes */
259 static const signed short xpad_abs_pad[] = {
260 	ABS_HAT0X, ABS_HAT0Y,	/* d-pad axes */
261 	-1			/* terminating entry */
262 };
263 
264 /* used when triggers are mapped to axes */
265 static const signed short xpad_abs_triggers[] = {
266 	ABS_Z, ABS_RZ,		/* triggers left/right */
267 	-1
268 };
269 
270 /*
271  * Xbox 360 has a vendor-specific class, so we cannot match it with only
272  * USB_INTERFACE_INFO (also specifically refused by USB subsystem), so we
273  * match against vendor id as well. Wired Xbox 360 devices have protocol 1,
274  * wireless controllers have protocol 129.
275  */
276 #define XPAD_XBOX360_VENDOR_PROTOCOL(vend,pr) \
277 	.match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO, \
278 	.idVendor = (vend), \
279 	.bInterfaceClass = USB_CLASS_VENDOR_SPEC, \
280 	.bInterfaceSubClass = 93, \
281 	.bInterfaceProtocol = (pr)
282 #define XPAD_XBOX360_VENDOR(vend) \
283 	{ XPAD_XBOX360_VENDOR_PROTOCOL(vend,1) }, \
284 	{ XPAD_XBOX360_VENDOR_PROTOCOL(vend,129) }
285 
286 /* The Xbox One controller uses subclass 71 and protocol 208. */
287 #define XPAD_XBOXONE_VENDOR_PROTOCOL(vend, pr) \
288 	.match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO, \
289 	.idVendor = (vend), \
290 	.bInterfaceClass = USB_CLASS_VENDOR_SPEC, \
291 	.bInterfaceSubClass = 71, \
292 	.bInterfaceProtocol = (pr)
293 #define XPAD_XBOXONE_VENDOR(vend) \
294 	{ XPAD_XBOXONE_VENDOR_PROTOCOL(vend, 208) }
295 
296 static struct usb_device_id xpad_table[] = {
297 	{ USB_INTERFACE_INFO('X', 'B', 0) },	/* X-Box USB-IF not approved class */
298 	XPAD_XBOX360_VENDOR(0x044f),		/* Thrustmaster X-Box 360 controllers */
299 	XPAD_XBOX360_VENDOR(0x045e),		/* Microsoft X-Box 360 controllers */
300 	XPAD_XBOXONE_VENDOR(0x045e),		/* Microsoft X-Box One controllers */
301 	XPAD_XBOX360_VENDOR(0x046d),		/* Logitech X-Box 360 style controllers */
302 	XPAD_XBOX360_VENDOR(0x0738),		/* Mad Catz X-Box 360 controllers */
303 	{ USB_DEVICE(0x0738, 0x4540) },		/* Mad Catz Beat Pad */
304 	XPAD_XBOX360_VENDOR(0x0e6f),		/* 0x0e6f X-Box 360 controllers */
305 	XPAD_XBOX360_VENDOR(0x12ab),		/* X-Box 360 dance pads */
306 	XPAD_XBOX360_VENDOR(0x1430),		/* RedOctane X-Box 360 controllers */
307 	XPAD_XBOX360_VENDOR(0x146b),		/* BigBen Interactive Controllers */
308 	XPAD_XBOX360_VENDOR(0x1bad),		/* Harminix Rock Band Guitar and Drums */
309 	XPAD_XBOX360_VENDOR(0x0f0d),		/* Hori Controllers */
310 	XPAD_XBOX360_VENDOR(0x1689),		/* Razer Onza */
311 	XPAD_XBOX360_VENDOR(0x24c6),		/* PowerA Controllers */
312 	XPAD_XBOX360_VENDOR(0x1532),		/* Razer Sabertooth */
313 	XPAD_XBOX360_VENDOR(0x15e4),		/* Numark X-Box 360 controllers */
314 	XPAD_XBOX360_VENDOR(0x162e),		/* Joytech X-Box 360 controllers */
315 	{ }
316 };
317 
318 MODULE_DEVICE_TABLE(usb, xpad_table);
319 
320 struct usb_xpad {
321 	struct input_dev *dev;		/* input device interface */
322 	struct usb_device *udev;	/* usb device */
323 	struct usb_interface *intf;	/* usb interface */
324 
325 	int pad_present;
326 
327 	struct urb *irq_in;		/* urb for interrupt in report */
328 	unsigned char *idata;		/* input data */
329 	dma_addr_t idata_dma;
330 
331 	struct urb *bulk_out;
332 	unsigned char *bdata;
333 
334 	struct urb *irq_out;		/* urb for interrupt out report */
335 	unsigned char *odata;		/* output data */
336 	dma_addr_t odata_dma;
337 	struct mutex odata_mutex;
338 
339 #if defined(CONFIG_JOYSTICK_XPAD_LEDS)
340 	struct xpad_led *led;
341 #endif
342 
343 	char phys[64];			/* physical device path */
344 
345 	int mapping;			/* map d-pad to buttons or to axes */
346 	int xtype;			/* type of xbox device */
347 	unsigned long led_no;		/* led to lit on xbox360 controllers */
348 };
349 
350 /*
351  *	xpad_process_packet
352  *
353  *	Completes a request by converting the data into events for the
354  *	input subsystem.
355  *
356  *	The used report descriptor was taken from ITO Takayukis website:
357  *	 http://euc.jp/periphs/xbox-controller.ja.html
358  */
359 
360 static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
361 {
362 	struct input_dev *dev = xpad->dev;
363 
364 	if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
365 		/* left stick */
366 		input_report_abs(dev, ABS_X,
367 				 (__s16) le16_to_cpup((__le16 *)(data + 12)));
368 		input_report_abs(dev, ABS_Y,
369 				 ~(__s16) le16_to_cpup((__le16 *)(data + 14)));
370 
371 		/* right stick */
372 		input_report_abs(dev, ABS_RX,
373 				 (__s16) le16_to_cpup((__le16 *)(data + 16)));
374 		input_report_abs(dev, ABS_RY,
375 				 ~(__s16) le16_to_cpup((__le16 *)(data + 18)));
376 	}
377 
378 	/* triggers left/right */
379 	if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
380 		input_report_key(dev, BTN_TL2, data[10]);
381 		input_report_key(dev, BTN_TR2, data[11]);
382 	} else {
383 		input_report_abs(dev, ABS_Z, data[10]);
384 		input_report_abs(dev, ABS_RZ, data[11]);
385 	}
386 
387 	/* digital pad */
388 	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
389 		/* dpad as buttons (left, right, up, down) */
390 		input_report_key(dev, BTN_TRIGGER_HAPPY1, data[2] & 0x04);
391 		input_report_key(dev, BTN_TRIGGER_HAPPY2, data[2] & 0x08);
392 		input_report_key(dev, BTN_TRIGGER_HAPPY3, data[2] & 0x01);
393 		input_report_key(dev, BTN_TRIGGER_HAPPY4, data[2] & 0x02);
394 	} else {
395 		input_report_abs(dev, ABS_HAT0X,
396 				 !!(data[2] & 0x08) - !!(data[2] & 0x04));
397 		input_report_abs(dev, ABS_HAT0Y,
398 				 !!(data[2] & 0x02) - !!(data[2] & 0x01));
399 	}
400 
401 	/* start/back buttons and stick press left/right */
402 	input_report_key(dev, BTN_START,  data[2] & 0x10);
403 	input_report_key(dev, BTN_SELECT, data[2] & 0x20);
404 	input_report_key(dev, BTN_THUMBL, data[2] & 0x40);
405 	input_report_key(dev, BTN_THUMBR, data[2] & 0x80);
406 
407 	/* "analog" buttons A, B, X, Y */
408 	input_report_key(dev, BTN_A, data[4]);
409 	input_report_key(dev, BTN_B, data[5]);
410 	input_report_key(dev, BTN_X, data[6]);
411 	input_report_key(dev, BTN_Y, data[7]);
412 
413 	/* "analog" buttons black, white */
414 	input_report_key(dev, BTN_C, data[8]);
415 	input_report_key(dev, BTN_Z, data[9]);
416 
417 	input_sync(dev);
418 }
419 
420 /*
421  *	xpad360_process_packet
422  *
423  *	Completes a request by converting the data into events for the
424  *	input subsystem. It is version for xbox 360 controller
425  *
426  *	The used report descriptor was taken from:
427  *		http://www.free60.org/wiki/Gamepad
428  */
429 
430 static void xpad360_process_packet(struct usb_xpad *xpad,
431 				   u16 cmd, unsigned char *data)
432 {
433 	struct input_dev *dev = xpad->dev;
434 
435 	/* digital pad */
436 	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
437 		/* dpad as buttons (left, right, up, down) */
438 		input_report_key(dev, BTN_TRIGGER_HAPPY1, data[2] & 0x04);
439 		input_report_key(dev, BTN_TRIGGER_HAPPY2, data[2] & 0x08);
440 		input_report_key(dev, BTN_TRIGGER_HAPPY3, data[2] & 0x01);
441 		input_report_key(dev, BTN_TRIGGER_HAPPY4, data[2] & 0x02);
442 	} else {
443 		input_report_abs(dev, ABS_HAT0X,
444 				 !!(data[2] & 0x08) - !!(data[2] & 0x04));
445 		input_report_abs(dev, ABS_HAT0Y,
446 				 !!(data[2] & 0x02) - !!(data[2] & 0x01));
447 	}
448 
449 	/* start/back buttons */
450 	input_report_key(dev, BTN_START,  data[2] & 0x10);
451 	input_report_key(dev, BTN_SELECT, data[2] & 0x20);
452 
453 	/* stick press left/right */
454 	input_report_key(dev, BTN_THUMBL, data[2] & 0x40);
455 	input_report_key(dev, BTN_THUMBR, data[2] & 0x80);
456 
457 	/* buttons A,B,X,Y,TL,TR and MODE */
458 	input_report_key(dev, BTN_A,	data[3] & 0x10);
459 	input_report_key(dev, BTN_B,	data[3] & 0x20);
460 	input_report_key(dev, BTN_X,	data[3] & 0x40);
461 	input_report_key(dev, BTN_Y,	data[3] & 0x80);
462 	input_report_key(dev, BTN_TL,	data[3] & 0x01);
463 	input_report_key(dev, BTN_TR,	data[3] & 0x02);
464 	input_report_key(dev, BTN_MODE,	data[3] & 0x04);
465 
466 	if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
467 		/* left stick */
468 		input_report_abs(dev, ABS_X,
469 				 (__s16) le16_to_cpup((__le16 *)(data + 6)));
470 		input_report_abs(dev, ABS_Y,
471 				 ~(__s16) le16_to_cpup((__le16 *)(data + 8)));
472 
473 		/* right stick */
474 		input_report_abs(dev, ABS_RX,
475 				 (__s16) le16_to_cpup((__le16 *)(data + 10)));
476 		input_report_abs(dev, ABS_RY,
477 				 ~(__s16) le16_to_cpup((__le16 *)(data + 12)));
478 	}
479 
480 	/* triggers left/right */
481 	if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
482 		input_report_key(dev, BTN_TL2, data[4]);
483 		input_report_key(dev, BTN_TR2, data[5]);
484 	} else {
485 		input_report_abs(dev, ABS_Z, data[4]);
486 		input_report_abs(dev, ABS_RZ, data[5]);
487 	}
488 
489 	input_sync(dev);
490 }
491 
492 static void xpad_identify_controller(struct usb_xpad *xpad);
493 
494 /*
495  * xpad360w_process_packet
496  *
497  * Completes a request by converting the data into events for the
498  * input subsystem. It is version for xbox 360 wireless controller.
499  *
500  * Byte.Bit
501  * 00.1 - Status change: The controller or headset has connected/disconnected
502  *                       Bits 01.7 and 01.6 are valid
503  * 01.7 - Controller present
504  * 01.6 - Headset present
505  * 01.1 - Pad state (Bytes 4+) valid
506  *
507  */
508 
509 static void xpad360w_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
510 {
511 	/* Presence change */
512 	if (data[0] & 0x08) {
513 		if (data[1] & 0x80) {
514 			xpad->pad_present = 1;
515 			usb_submit_urb(xpad->bulk_out, GFP_ATOMIC);
516 			/*
517 			 * Light up the segment corresponding to
518 			 * controller number.
519 			 */
520 			xpad_identify_controller(xpad);
521 		} else
522 			xpad->pad_present = 0;
523 	}
524 
525 	/* Valid pad data */
526 	if (!(data[1] & 0x1))
527 		return;
528 
529 	xpad360_process_packet(xpad, cmd, &data[4]);
530 }
531 
532 /*
533  *	xpadone_process_buttons
534  *
535  *	Process a button update packet from an Xbox one controller.
536  */
537 static void xpadone_process_buttons(struct usb_xpad *xpad,
538 				struct input_dev *dev,
539 				unsigned char *data)
540 {
541 	/* menu/view buttons */
542 	input_report_key(dev, BTN_START,  data[4] & 0x04);
543 	input_report_key(dev, BTN_SELECT, data[4] & 0x08);
544 
545 	/* buttons A,B,X,Y */
546 	input_report_key(dev, BTN_A,	data[4] & 0x10);
547 	input_report_key(dev, BTN_B,	data[4] & 0x20);
548 	input_report_key(dev, BTN_X,	data[4] & 0x40);
549 	input_report_key(dev, BTN_Y,	data[4] & 0x80);
550 
551 	/* digital pad */
552 	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
553 		/* dpad as buttons (left, right, up, down) */
554 		input_report_key(dev, BTN_TRIGGER_HAPPY1, data[5] & 0x04);
555 		input_report_key(dev, BTN_TRIGGER_HAPPY2, data[5] & 0x08);
556 		input_report_key(dev, BTN_TRIGGER_HAPPY3, data[5] & 0x01);
557 		input_report_key(dev, BTN_TRIGGER_HAPPY4, data[5] & 0x02);
558 	} else {
559 		input_report_abs(dev, ABS_HAT0X,
560 				 !!(data[5] & 0x08) - !!(data[5] & 0x04));
561 		input_report_abs(dev, ABS_HAT0Y,
562 				 !!(data[5] & 0x02) - !!(data[5] & 0x01));
563 	}
564 
565 	/* TL/TR */
566 	input_report_key(dev, BTN_TL,	data[5] & 0x10);
567 	input_report_key(dev, BTN_TR,	data[5] & 0x20);
568 
569 	/* stick press left/right */
570 	input_report_key(dev, BTN_THUMBL, data[5] & 0x40);
571 	input_report_key(dev, BTN_THUMBR, data[5] & 0x80);
572 
573 	if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
574 		/* left stick */
575 		input_report_abs(dev, ABS_X,
576 				 (__s16) le16_to_cpup((__le16 *)(data + 10)));
577 		input_report_abs(dev, ABS_Y,
578 				 ~(__s16) le16_to_cpup((__le16 *)(data + 12)));
579 
580 		/* right stick */
581 		input_report_abs(dev, ABS_RX,
582 				 (__s16) le16_to_cpup((__le16 *)(data + 14)));
583 		input_report_abs(dev, ABS_RY,
584 				 ~(__s16) le16_to_cpup((__le16 *)(data + 16)));
585 	}
586 
587 	/* triggers left/right */
588 	if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
589 		input_report_key(dev, BTN_TL2,
590 				 (__u16) le16_to_cpup((__le16 *)(data + 6)));
591 		input_report_key(dev, BTN_TR2,
592 				 (__u16) le16_to_cpup((__le16 *)(data + 8)));
593 	} else {
594 		input_report_abs(dev, ABS_Z,
595 				 (__u16) le16_to_cpup((__le16 *)(data + 6)));
596 		input_report_abs(dev, ABS_RZ,
597 				 (__u16) le16_to_cpup((__le16 *)(data + 8)));
598 	}
599 
600 	input_sync(dev);
601 }
602 
603 /*
604  *	xpadone_process_packet
605  *
606  *	Completes a request by converting the data into events for the
607  *	input subsystem. This version is for the Xbox One controller.
608  *
609  *	The report format was gleaned from
610  *	https://github.com/kylelemons/xbox/blob/master/xbox.go
611  */
612 
613 static void xpadone_process_packet(struct usb_xpad *xpad,
614 				u16 cmd, unsigned char *data)
615 {
616 	struct input_dev *dev = xpad->dev;
617 
618 	switch (data[0]) {
619 	case 0x20:
620 		xpadone_process_buttons(xpad, dev, data);
621 		break;
622 
623 	case 0x07:
624 		/* the xbox button has its own special report */
625 		input_report_key(dev, BTN_MODE, data[4] & 0x01);
626 		input_sync(dev);
627 		break;
628 	}
629 }
630 
631 static void xpad_irq_in(struct urb *urb)
632 {
633 	struct usb_xpad *xpad = urb->context;
634 	struct device *dev = &xpad->intf->dev;
635 	int retval, status;
636 
637 	status = urb->status;
638 
639 	switch (status) {
640 	case 0:
641 		/* success */
642 		break;
643 	case -ECONNRESET:
644 	case -ENOENT:
645 	case -ESHUTDOWN:
646 		/* this urb is terminated, clean up */
647 		dev_dbg(dev, "%s - urb shutting down with status: %d\n",
648 			__func__, status);
649 		return;
650 	default:
651 		dev_dbg(dev, "%s - nonzero urb status received: %d\n",
652 			__func__, status);
653 		goto exit;
654 	}
655 
656 	switch (xpad->xtype) {
657 	case XTYPE_XBOX360:
658 		xpad360_process_packet(xpad, 0, xpad->idata);
659 		break;
660 	case XTYPE_XBOX360W:
661 		xpad360w_process_packet(xpad, 0, xpad->idata);
662 		break;
663 	case XTYPE_XBOXONE:
664 		xpadone_process_packet(xpad, 0, xpad->idata);
665 		break;
666 	default:
667 		xpad_process_packet(xpad, 0, xpad->idata);
668 	}
669 
670 exit:
671 	retval = usb_submit_urb(urb, GFP_ATOMIC);
672 	if (retval)
673 		dev_err(dev, "%s - usb_submit_urb failed with result %d\n",
674 			__func__, retval);
675 }
676 
677 static void xpad_bulk_out(struct urb *urb)
678 {
679 	struct usb_xpad *xpad = urb->context;
680 	struct device *dev = &xpad->intf->dev;
681 
682 	switch (urb->status) {
683 	case 0:
684 		/* success */
685 		break;
686 	case -ECONNRESET:
687 	case -ENOENT:
688 	case -ESHUTDOWN:
689 		/* this urb is terminated, clean up */
690 		dev_dbg(dev, "%s - urb shutting down with status: %d\n",
691 			__func__, urb->status);
692 		break;
693 	default:
694 		dev_dbg(dev, "%s - nonzero urb status received: %d\n",
695 			__func__, urb->status);
696 	}
697 }
698 
699 static void xpad_irq_out(struct urb *urb)
700 {
701 	struct usb_xpad *xpad = urb->context;
702 	struct device *dev = &xpad->intf->dev;
703 	int retval, status;
704 
705 	status = urb->status;
706 
707 	switch (status) {
708 	case 0:
709 		/* success */
710 		return;
711 
712 	case -ECONNRESET:
713 	case -ENOENT:
714 	case -ESHUTDOWN:
715 		/* this urb is terminated, clean up */
716 		dev_dbg(dev, "%s - urb shutting down with status: %d\n",
717 			__func__, status);
718 		return;
719 
720 	default:
721 		dev_dbg(dev, "%s - nonzero urb status received: %d\n",
722 			__func__, status);
723 		goto exit;
724 	}
725 
726 exit:
727 	retval = usb_submit_urb(urb, GFP_ATOMIC);
728 	if (retval)
729 		dev_err(dev, "%s - usb_submit_urb failed with result %d\n",
730 			__func__, retval);
731 }
732 
733 static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad)
734 {
735 	struct usb_endpoint_descriptor *ep_irq_out;
736 	int ep_irq_out_idx;
737 	int error;
738 
739 	if (xpad->xtype == XTYPE_UNKNOWN)
740 		return 0;
741 
742 	xpad->odata = usb_alloc_coherent(xpad->udev, XPAD_PKT_LEN,
743 					 GFP_KERNEL, &xpad->odata_dma);
744 	if (!xpad->odata) {
745 		error = -ENOMEM;
746 		goto fail1;
747 	}
748 
749 	mutex_init(&xpad->odata_mutex);
750 
751 	xpad->irq_out = usb_alloc_urb(0, GFP_KERNEL);
752 	if (!xpad->irq_out) {
753 		error = -ENOMEM;
754 		goto fail2;
755 	}
756 
757 	/* Xbox One controller has in/out endpoints swapped. */
758 	ep_irq_out_idx = xpad->xtype == XTYPE_XBOXONE ? 0 : 1;
759 	ep_irq_out = &intf->cur_altsetting->endpoint[ep_irq_out_idx].desc;
760 
761 	usb_fill_int_urb(xpad->irq_out, xpad->udev,
762 			 usb_sndintpipe(xpad->udev, ep_irq_out->bEndpointAddress),
763 			 xpad->odata, XPAD_PKT_LEN,
764 			 xpad_irq_out, xpad, ep_irq_out->bInterval);
765 	xpad->irq_out->transfer_dma = xpad->odata_dma;
766 	xpad->irq_out->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
767 
768 	return 0;
769 
770  fail2:	usb_free_coherent(xpad->udev, XPAD_PKT_LEN, xpad->odata, xpad->odata_dma);
771  fail1:	return error;
772 }
773 
774 static void xpad_stop_output(struct usb_xpad *xpad)
775 {
776 	if (xpad->xtype != XTYPE_UNKNOWN)
777 		usb_kill_urb(xpad->irq_out);
778 }
779 
780 static void xpad_deinit_output(struct usb_xpad *xpad)
781 {
782 	if (xpad->xtype != XTYPE_UNKNOWN) {
783 		usb_free_urb(xpad->irq_out);
784 		usb_free_coherent(xpad->udev, XPAD_PKT_LEN,
785 				xpad->odata, xpad->odata_dma);
786 	}
787 }
788 
789 #ifdef CONFIG_JOYSTICK_XPAD_FF
790 static int xpad_play_effect(struct input_dev *dev, void *data, struct ff_effect *effect)
791 {
792 	struct usb_xpad *xpad = input_get_drvdata(dev);
793 
794 	if (effect->type == FF_RUMBLE) {
795 		__u16 strong = effect->u.rumble.strong_magnitude;
796 		__u16 weak = effect->u.rumble.weak_magnitude;
797 
798 		switch (xpad->xtype) {
799 
800 		case XTYPE_XBOX:
801 			xpad->odata[0] = 0x00;
802 			xpad->odata[1] = 0x06;
803 			xpad->odata[2] = 0x00;
804 			xpad->odata[3] = strong / 256;	/* left actuator */
805 			xpad->odata[4] = 0x00;
806 			xpad->odata[5] = weak / 256;	/* right actuator */
807 			xpad->irq_out->transfer_buffer_length = 6;
808 
809 			return usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
810 
811 		case XTYPE_XBOX360:
812 			xpad->odata[0] = 0x00;
813 			xpad->odata[1] = 0x08;
814 			xpad->odata[2] = 0x00;
815 			xpad->odata[3] = strong / 256;  /* left actuator? */
816 			xpad->odata[4] = weak / 256;	/* right actuator? */
817 			xpad->odata[5] = 0x00;
818 			xpad->odata[6] = 0x00;
819 			xpad->odata[7] = 0x00;
820 			xpad->irq_out->transfer_buffer_length = 8;
821 
822 			return usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
823 
824 		case XTYPE_XBOX360W:
825 			xpad->odata[0] = 0x00;
826 			xpad->odata[1] = 0x01;
827 			xpad->odata[2] = 0x0F;
828 			xpad->odata[3] = 0xC0;
829 			xpad->odata[4] = 0x00;
830 			xpad->odata[5] = strong / 256;
831 			xpad->odata[6] = weak / 256;
832 			xpad->odata[7] = 0x00;
833 			xpad->odata[8] = 0x00;
834 			xpad->odata[9] = 0x00;
835 			xpad->odata[10] = 0x00;
836 			xpad->odata[11] = 0x00;
837 			xpad->irq_out->transfer_buffer_length = 12;
838 
839 			return usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
840 
841 		case XTYPE_XBOXONE:
842 			xpad->odata[0] = 0x09; /* activate rumble */
843 			xpad->odata[1] = 0x08;
844 			xpad->odata[2] = 0x00;
845 			xpad->odata[3] = 0x08; /* continuous effect */
846 			xpad->odata[4] = 0x00; /* simple rumble mode */
847 			xpad->odata[5] = 0x03; /* L and R actuator only */
848 			xpad->odata[6] = 0x00; /* TODO: LT actuator */
849 			xpad->odata[7] = 0x00; /* TODO: RT actuator */
850 			xpad->odata[8] = strong / 256;	/* left actuator */
851 			xpad->odata[9] = weak / 256;	/* right actuator */
852 			xpad->odata[10] = 0x80;	/* length of pulse */
853 			xpad->odata[11] = 0x00;	/* stop period of pulse */
854 			xpad->irq_out->transfer_buffer_length = 12;
855 
856 			return usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
857 
858 		default:
859 			dev_dbg(&xpad->dev->dev,
860 				"%s - rumble command sent to unsupported xpad type: %d\n",
861 				__func__, xpad->xtype);
862 			return -1;
863 		}
864 	}
865 
866 	return 0;
867 }
868 
869 static int xpad_init_ff(struct usb_xpad *xpad)
870 {
871 	if (xpad->xtype == XTYPE_UNKNOWN)
872 		return 0;
873 
874 	input_set_capability(xpad->dev, EV_FF, FF_RUMBLE);
875 
876 	return input_ff_create_memless(xpad->dev, NULL, xpad_play_effect);
877 }
878 
879 #else
880 static int xpad_init_ff(struct usb_xpad *xpad) { return 0; }
881 #endif
882 
883 #if defined(CONFIG_JOYSTICK_XPAD_LEDS)
884 #include <linux/leds.h>
885 
886 struct xpad_led {
887 	char name[16];
888 	struct led_classdev led_cdev;
889 	struct usb_xpad *xpad;
890 };
891 
892 /**
893  * @param command
894  *  0: off
895  *  1: all blink, then previous setting
896  *  2: 1/top-left blink, then on
897  *  3: 2/top-right blink, then on
898  *  4: 3/bottom-left blink, then on
899  *  5: 4/bottom-right blink, then on
900  *  6: 1/top-left on
901  *  7: 2/top-right on
902  *  8: 3/bottom-left on
903  *  9: 4/bottom-right on
904  * 10: rotate
905  * 11: blink, based on previous setting
906  * 12: slow blink, based on previous setting
907  * 13: rotate with two lights
908  * 14: persistent slow all blink
909  * 15: blink once, then previous setting
910  */
911 static void xpad_send_led_command(struct usb_xpad *xpad, int command)
912 {
913 	command %= 16;
914 
915 	mutex_lock(&xpad->odata_mutex);
916 
917 	switch (xpad->xtype) {
918 	case XTYPE_XBOX360:
919 		xpad->odata[0] = 0x01;
920 		xpad->odata[1] = 0x03;
921 		xpad->odata[2] = command;
922 		xpad->irq_out->transfer_buffer_length = 3;
923 		break;
924 	case XTYPE_XBOX360W:
925 		xpad->odata[0] = 0x00;
926 		xpad->odata[1] = 0x00;
927 		xpad->odata[2] = 0x08;
928 		xpad->odata[3] = 0x40 + command;
929 		xpad->odata[4] = 0x00;
930 		xpad->odata[5] = 0x00;
931 		xpad->odata[6] = 0x00;
932 		xpad->odata[7] = 0x00;
933 		xpad->odata[8] = 0x00;
934 		xpad->odata[9] = 0x00;
935 		xpad->odata[10] = 0x00;
936 		xpad->odata[11] = 0x00;
937 		xpad->irq_out->transfer_buffer_length = 12;
938 		break;
939 	}
940 
941 	usb_submit_urb(xpad->irq_out, GFP_KERNEL);
942 	mutex_unlock(&xpad->odata_mutex);
943 }
944 
945 static void xpad_identify_controller(struct usb_xpad *xpad)
946 {
947 	/* Light up the segment corresponding to controller number */
948 	xpad_send_led_command(xpad, (xpad->led_no % 4) + 2);
949 }
950 
951 static void xpad_led_set(struct led_classdev *led_cdev,
952 			 enum led_brightness value)
953 {
954 	struct xpad_led *xpad_led = container_of(led_cdev,
955 						 struct xpad_led, led_cdev);
956 
957 	xpad_send_led_command(xpad_led->xpad, value);
958 }
959 
960 static int xpad_led_probe(struct usb_xpad *xpad)
961 {
962 	static atomic_t led_seq = ATOMIC_INIT(-1);
963 	struct xpad_led *led;
964 	struct led_classdev *led_cdev;
965 	int error;
966 
967 	if (xpad->xtype != XTYPE_XBOX360 && xpad->xtype != XTYPE_XBOX360W)
968 		return 0;
969 
970 	xpad->led = led = kzalloc(sizeof(struct xpad_led), GFP_KERNEL);
971 	if (!led)
972 		return -ENOMEM;
973 
974 	xpad->led_no = atomic_inc_return(&led_seq);
975 
976 	snprintf(led->name, sizeof(led->name), "xpad%lu", xpad->led_no);
977 	led->xpad = xpad;
978 
979 	led_cdev = &led->led_cdev;
980 	led_cdev->name = led->name;
981 	led_cdev->brightness_set = xpad_led_set;
982 
983 	error = led_classdev_register(&xpad->udev->dev, led_cdev);
984 	if (error) {
985 		kfree(led);
986 		xpad->led = NULL;
987 		return error;
988 	}
989 
990 	/* Light up the segment corresponding to controller number */
991 	xpad_identify_controller(xpad);
992 
993 	return 0;
994 }
995 
996 static void xpad_led_disconnect(struct usb_xpad *xpad)
997 {
998 	struct xpad_led *xpad_led = xpad->led;
999 
1000 	if (xpad_led) {
1001 		led_classdev_unregister(&xpad_led->led_cdev);
1002 		kfree(xpad_led);
1003 	}
1004 }
1005 #else
1006 static int xpad_led_probe(struct usb_xpad *xpad) { return 0; }
1007 static void xpad_led_disconnect(struct usb_xpad *xpad) { }
1008 static void xpad_identify_controller(struct usb_xpad *xpad) { }
1009 #endif
1010 
1011 
1012 static int xpad_open(struct input_dev *dev)
1013 {
1014 	struct usb_xpad *xpad = input_get_drvdata(dev);
1015 
1016 	/* URB was submitted in probe */
1017 	if (xpad->xtype == XTYPE_XBOX360W)
1018 		return 0;
1019 
1020 	xpad->irq_in->dev = xpad->udev;
1021 	if (usb_submit_urb(xpad->irq_in, GFP_KERNEL))
1022 		return -EIO;
1023 
1024 	if (xpad->xtype == XTYPE_XBOXONE) {
1025 		/* Xbox one controller needs to be initialized. */
1026 		xpad->odata[0] = 0x05;
1027 		xpad->odata[1] = 0x20;
1028 		xpad->irq_out->transfer_buffer_length = 2;
1029 		return usb_submit_urb(xpad->irq_out, GFP_KERNEL);
1030 	}
1031 
1032 	return 0;
1033 }
1034 
1035 static void xpad_close(struct input_dev *dev)
1036 {
1037 	struct usb_xpad *xpad = input_get_drvdata(dev);
1038 
1039 	if (xpad->xtype != XTYPE_XBOX360W)
1040 		usb_kill_urb(xpad->irq_in);
1041 
1042 	xpad_stop_output(xpad);
1043 }
1044 
1045 static void xpad_set_up_abs(struct input_dev *input_dev, signed short abs)
1046 {
1047 	struct usb_xpad *xpad = input_get_drvdata(input_dev);
1048 	set_bit(abs, input_dev->absbit);
1049 
1050 	switch (abs) {
1051 	case ABS_X:
1052 	case ABS_Y:
1053 	case ABS_RX:
1054 	case ABS_RY:	/* the two sticks */
1055 		input_set_abs_params(input_dev, abs, -32768, 32767, 16, 128);
1056 		break;
1057 	case ABS_Z:
1058 	case ABS_RZ:	/* the triggers (if mapped to axes) */
1059 		if (xpad->xtype == XTYPE_XBOXONE)
1060 			input_set_abs_params(input_dev, abs, 0, 1023, 0, 0);
1061 		else
1062 			input_set_abs_params(input_dev, abs, 0, 255, 0, 0);
1063 		break;
1064 	case ABS_HAT0X:
1065 	case ABS_HAT0Y:	/* the d-pad (only if dpad is mapped to axes */
1066 		input_set_abs_params(input_dev, abs, -1, 1, 0, 0);
1067 		break;
1068 	}
1069 }
1070 
1071 static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id)
1072 {
1073 	struct usb_device *udev = interface_to_usbdev(intf);
1074 	struct usb_xpad *xpad;
1075 	struct input_dev *input_dev;
1076 	struct usb_endpoint_descriptor *ep_irq_in;
1077 	int ep_irq_in_idx;
1078 	int i, error;
1079 
1080 	for (i = 0; xpad_device[i].idVendor; i++) {
1081 		if ((le16_to_cpu(udev->descriptor.idVendor) == xpad_device[i].idVendor) &&
1082 		    (le16_to_cpu(udev->descriptor.idProduct) == xpad_device[i].idProduct))
1083 			break;
1084 	}
1085 
1086 	if (xpad_device[i].xtype == XTYPE_XBOXONE &&
1087 	    intf->cur_altsetting->desc.bInterfaceNumber != 0) {
1088 		/*
1089 		 * The Xbox One controller lists three interfaces all with the
1090 		 * same interface class, subclass and protocol. Differentiate by
1091 		 * interface number.
1092 		 */
1093 		return -ENODEV;
1094 	}
1095 
1096 	xpad = kzalloc(sizeof(struct usb_xpad), GFP_KERNEL);
1097 	input_dev = input_allocate_device();
1098 	if (!xpad || !input_dev) {
1099 		error = -ENOMEM;
1100 		goto fail1;
1101 	}
1102 
1103 	xpad->idata = usb_alloc_coherent(udev, XPAD_PKT_LEN,
1104 					 GFP_KERNEL, &xpad->idata_dma);
1105 	if (!xpad->idata) {
1106 		error = -ENOMEM;
1107 		goto fail1;
1108 	}
1109 
1110 	xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL);
1111 	if (!xpad->irq_in) {
1112 		error = -ENOMEM;
1113 		goto fail2;
1114 	}
1115 
1116 	xpad->udev = udev;
1117 	xpad->intf = intf;
1118 	xpad->mapping = xpad_device[i].mapping;
1119 	xpad->xtype = xpad_device[i].xtype;
1120 
1121 	if (xpad->xtype == XTYPE_UNKNOWN) {
1122 		if (intf->cur_altsetting->desc.bInterfaceClass == USB_CLASS_VENDOR_SPEC) {
1123 			if (intf->cur_altsetting->desc.bInterfaceProtocol == 129)
1124 				xpad->xtype = XTYPE_XBOX360W;
1125 			else
1126 				xpad->xtype = XTYPE_XBOX360;
1127 		} else
1128 			xpad->xtype = XTYPE_XBOX;
1129 
1130 		if (dpad_to_buttons)
1131 			xpad->mapping |= MAP_DPAD_TO_BUTTONS;
1132 		if (triggers_to_buttons)
1133 			xpad->mapping |= MAP_TRIGGERS_TO_BUTTONS;
1134 		if (sticks_to_null)
1135 			xpad->mapping |= MAP_STICKS_TO_NULL;
1136 	}
1137 
1138 	xpad->dev = input_dev;
1139 	usb_make_path(udev, xpad->phys, sizeof(xpad->phys));
1140 	strlcat(xpad->phys, "/input0", sizeof(xpad->phys));
1141 
1142 	input_dev->name = xpad_device[i].name;
1143 	input_dev->phys = xpad->phys;
1144 	usb_to_input_id(udev, &input_dev->id);
1145 	input_dev->dev.parent = &intf->dev;
1146 
1147 	input_set_drvdata(input_dev, xpad);
1148 
1149 	input_dev->open = xpad_open;
1150 	input_dev->close = xpad_close;
1151 
1152 	input_dev->evbit[0] = BIT_MASK(EV_KEY);
1153 
1154 	if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
1155 		input_dev->evbit[0] |= BIT_MASK(EV_ABS);
1156 		/* set up axes */
1157 		for (i = 0; xpad_abs[i] >= 0; i++)
1158 			xpad_set_up_abs(input_dev, xpad_abs[i]);
1159 	}
1160 
1161 	/* set up standard buttons */
1162 	for (i = 0; xpad_common_btn[i] >= 0; i++)
1163 		__set_bit(xpad_common_btn[i], input_dev->keybit);
1164 
1165 	/* set up model-specific ones */
1166 	if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype == XTYPE_XBOX360W ||
1167 	    xpad->xtype == XTYPE_XBOXONE) {
1168 		for (i = 0; xpad360_btn[i] >= 0; i++)
1169 			__set_bit(xpad360_btn[i], input_dev->keybit);
1170 	} else {
1171 		for (i = 0; xpad_btn[i] >= 0; i++)
1172 			__set_bit(xpad_btn[i], input_dev->keybit);
1173 	}
1174 
1175 	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
1176 		for (i = 0; xpad_btn_pad[i] >= 0; i++)
1177 			__set_bit(xpad_btn_pad[i], input_dev->keybit);
1178 	} else {
1179 		for (i = 0; xpad_abs_pad[i] >= 0; i++)
1180 			xpad_set_up_abs(input_dev, xpad_abs_pad[i]);
1181 	}
1182 
1183 	if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
1184 		for (i = 0; xpad_btn_triggers[i] >= 0; i++)
1185 			__set_bit(xpad_btn_triggers[i], input_dev->keybit);
1186 	} else {
1187 		for (i = 0; xpad_abs_triggers[i] >= 0; i++)
1188 			xpad_set_up_abs(input_dev, xpad_abs_triggers[i]);
1189 	}
1190 
1191 	error = xpad_init_output(intf, xpad);
1192 	if (error)
1193 		goto fail3;
1194 
1195 	error = xpad_init_ff(xpad);
1196 	if (error)
1197 		goto fail4;
1198 
1199 	error = xpad_led_probe(xpad);
1200 	if (error)
1201 		goto fail5;
1202 
1203 	/* Xbox One controller has in/out endpoints swapped. */
1204 	ep_irq_in_idx = xpad->xtype == XTYPE_XBOXONE ? 1 : 0;
1205 	ep_irq_in = &intf->cur_altsetting->endpoint[ep_irq_in_idx].desc;
1206 
1207 	usb_fill_int_urb(xpad->irq_in, udev,
1208 			 usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress),
1209 			 xpad->idata, XPAD_PKT_LEN, xpad_irq_in,
1210 			 xpad, ep_irq_in->bInterval);
1211 	xpad->irq_in->transfer_dma = xpad->idata_dma;
1212 	xpad->irq_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1213 
1214 	error = input_register_device(xpad->dev);
1215 	if (error)
1216 		goto fail6;
1217 
1218 	usb_set_intfdata(intf, xpad);
1219 
1220 	if (xpad->xtype == XTYPE_XBOX360W) {
1221 		/*
1222 		 * Setup the message to set the LEDs on the
1223 		 * controller when it shows up
1224 		 */
1225 		xpad->bulk_out = usb_alloc_urb(0, GFP_KERNEL);
1226 		if (!xpad->bulk_out) {
1227 			error = -ENOMEM;
1228 			goto fail7;
1229 		}
1230 
1231 		xpad->bdata = kzalloc(XPAD_PKT_LEN, GFP_KERNEL);
1232 		if (!xpad->bdata) {
1233 			error = -ENOMEM;
1234 			goto fail8;
1235 		}
1236 
1237 		xpad->bdata[2] = 0x08;
1238 		switch (intf->cur_altsetting->desc.bInterfaceNumber) {
1239 		case 0:
1240 			xpad->bdata[3] = 0x42;
1241 			break;
1242 		case 2:
1243 			xpad->bdata[3] = 0x43;
1244 			break;
1245 		case 4:
1246 			xpad->bdata[3] = 0x44;
1247 			break;
1248 		case 6:
1249 			xpad->bdata[3] = 0x45;
1250 		}
1251 
1252 		ep_irq_in = &intf->cur_altsetting->endpoint[1].desc;
1253 		if (usb_endpoint_is_bulk_out(ep_irq_in)) {
1254 			usb_fill_bulk_urb(xpad->bulk_out, udev,
1255 					  usb_sndbulkpipe(udev,
1256 							  ep_irq_in->bEndpointAddress),
1257 					  xpad->bdata, XPAD_PKT_LEN,
1258 					  xpad_bulk_out, xpad);
1259 		} else {
1260 			usb_fill_int_urb(xpad->bulk_out, udev,
1261 					 usb_sndintpipe(udev,
1262 							ep_irq_in->bEndpointAddress),
1263 					 xpad->bdata, XPAD_PKT_LEN,
1264 					 xpad_bulk_out, xpad, 0);
1265 		}
1266 
1267 		/*
1268 		 * Submit the int URB immediately rather than waiting for open
1269 		 * because we get status messages from the device whether
1270 		 * or not any controllers are attached.  In fact, it's
1271 		 * exactly the message that a controller has arrived that
1272 		 * we're waiting for.
1273 		 */
1274 		xpad->irq_in->dev = xpad->udev;
1275 		error = usb_submit_urb(xpad->irq_in, GFP_KERNEL);
1276 		if (error)
1277 			goto fail9;
1278 	}
1279 
1280 	return 0;
1281 
1282  fail9:	kfree(xpad->bdata);
1283  fail8:	usb_free_urb(xpad->bulk_out);
1284  fail7:	input_unregister_device(input_dev);
1285 	input_dev = NULL;
1286  fail6:	xpad_led_disconnect(xpad);
1287  fail5:	if (input_dev)
1288 		input_ff_destroy(input_dev);
1289  fail4:	xpad_deinit_output(xpad);
1290  fail3:	usb_free_urb(xpad->irq_in);
1291  fail2:	usb_free_coherent(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
1292  fail1:	input_free_device(input_dev);
1293 	kfree(xpad);
1294 	return error;
1295 
1296 }
1297 
1298 static void xpad_disconnect(struct usb_interface *intf)
1299 {
1300 	struct usb_xpad *xpad = usb_get_intfdata (intf);
1301 
1302 	xpad_led_disconnect(xpad);
1303 	input_unregister_device(xpad->dev);
1304 	xpad_deinit_output(xpad);
1305 
1306 	if (xpad->xtype == XTYPE_XBOX360W) {
1307 		usb_kill_urb(xpad->bulk_out);
1308 		usb_free_urb(xpad->bulk_out);
1309 		usb_kill_urb(xpad->irq_in);
1310 	}
1311 
1312 	usb_free_urb(xpad->irq_in);
1313 	usb_free_coherent(xpad->udev, XPAD_PKT_LEN,
1314 			xpad->idata, xpad->idata_dma);
1315 
1316 	kfree(xpad->bdata);
1317 	kfree(xpad);
1318 
1319 	usb_set_intfdata(intf, NULL);
1320 }
1321 
1322 static struct usb_driver xpad_driver = {
1323 	.name		= "xpad",
1324 	.probe		= xpad_probe,
1325 	.disconnect	= xpad_disconnect,
1326 	.id_table	= xpad_table,
1327 };
1328 
1329 module_usb_driver(xpad_driver);
1330 
1331 MODULE_AUTHOR(DRIVER_AUTHOR);
1332 MODULE_DESCRIPTION(DRIVER_DESC);
1333 MODULE_LICENSE("GPL");
1334