xref: /openbmc/linux/drivers/input/joystick/xpad.c (revision efe4a1ac)
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/input.h>
80 #include <linux/rcupdate.h>
81 #include <linux/slab.h>
82 #include <linux/stat.h>
83 #include <linux/module.h>
84 #include <linux/usb/input.h>
85 #include <linux/usb/quirks.h>
86 
87 #define DRIVER_AUTHOR "Marko Friedemann <mfr@bmx-chemnitz.de>"
88 #define DRIVER_DESC "X-Box pad driver"
89 
90 #define XPAD_PKT_LEN 64
91 
92 /* xbox d-pads should map to buttons, as is required for DDR pads
93    but we map them to axes when possible to simplify things */
94 #define MAP_DPAD_TO_BUTTONS		(1 << 0)
95 #define MAP_TRIGGERS_TO_BUTTONS		(1 << 1)
96 #define MAP_STICKS_TO_NULL		(1 << 2)
97 #define DANCEPAD_MAP_CONFIG	(MAP_DPAD_TO_BUTTONS |			\
98 				MAP_TRIGGERS_TO_BUTTONS | MAP_STICKS_TO_NULL)
99 
100 #define XTYPE_XBOX        0
101 #define XTYPE_XBOX360     1
102 #define XTYPE_XBOX360W    2
103 #define XTYPE_XBOXONE     3
104 #define XTYPE_UNKNOWN     4
105 
106 static bool dpad_to_buttons;
107 module_param(dpad_to_buttons, bool, S_IRUGO);
108 MODULE_PARM_DESC(dpad_to_buttons, "Map D-PAD to buttons rather than axes for unknown pads");
109 
110 static bool triggers_to_buttons;
111 module_param(triggers_to_buttons, bool, S_IRUGO);
112 MODULE_PARM_DESC(triggers_to_buttons, "Map triggers to buttons rather than axes for unknown pads");
113 
114 static bool sticks_to_null;
115 module_param(sticks_to_null, bool, S_IRUGO);
116 MODULE_PARM_DESC(sticks_to_null, "Do not map sticks at all for unknown pads");
117 
118 static bool auto_poweroff = true;
119 module_param(auto_poweroff, bool, S_IWUSR | S_IRUGO);
120 MODULE_PARM_DESC(auto_poweroff, "Power off wireless controllers on suspend");
121 
122 static const struct xpad_device {
123 	u16 idVendor;
124 	u16 idProduct;
125 	char *name;
126 	u8 mapping;
127 	u8 xtype;
128 } xpad_device[] = {
129 	{ 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", 0, XTYPE_XBOX },
130 	{ 0x044f, 0xb326, "Thrustmaster Gamepad GP XID", 0, XTYPE_XBOX360 },
131 	{ 0x045e, 0x0202, "Microsoft X-Box pad v1 (US)", 0, XTYPE_XBOX },
132 	{ 0x045e, 0x0285, "Microsoft X-Box pad (Japan)", 0, XTYPE_XBOX },
133 	{ 0x045e, 0x0287, "Microsoft Xbox Controller S", 0, XTYPE_XBOX },
134 	{ 0x045e, 0x0289, "Microsoft X-Box pad v2 (US)", 0, XTYPE_XBOX },
135 	{ 0x045e, 0x028e, "Microsoft X-Box 360 pad", 0, XTYPE_XBOX360 },
136 	{ 0x045e, 0x0291, "Xbox 360 Wireless Receiver (XBOX)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
137 	{ 0x045e, 0x02d1, "Microsoft X-Box One pad", 0, XTYPE_XBOXONE },
138 	{ 0x045e, 0x02dd, "Microsoft X-Box One pad (Firmware 2015)", 0, XTYPE_XBOXONE },
139 	{ 0x045e, 0x02e3, "Microsoft X-Box One Elite pad", 0, XTYPE_XBOXONE },
140 	{ 0x045e, 0x02ea, "Microsoft X-Box One S pad", 0, XTYPE_XBOXONE },
141 	{ 0x045e, 0x0719, "Xbox 360 Wireless Receiver", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
142 	{ 0x046d, 0xc21d, "Logitech Gamepad F310", 0, XTYPE_XBOX360 },
143 	{ 0x046d, 0xc21e, "Logitech Gamepad F510", 0, XTYPE_XBOX360 },
144 	{ 0x046d, 0xc21f, "Logitech Gamepad F710", 0, XTYPE_XBOX360 },
145 	{ 0x046d, 0xc242, "Logitech Chillstream Controller", 0, XTYPE_XBOX360 },
146 	{ 0x046d, 0xca84, "Logitech Xbox Cordless Controller", 0, XTYPE_XBOX },
147 	{ 0x046d, 0xca88, "Logitech Compact Controller for Xbox", 0, XTYPE_XBOX },
148 	{ 0x056e, 0x2004, "Elecom JC-U3613M", 0, XTYPE_XBOX360 },
149 	{ 0x05fd, 0x1007, "Mad Catz Controller (unverified)", 0, XTYPE_XBOX },
150 	{ 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)", 0, XTYPE_XBOX },
151 	{ 0x0738, 0x4516, "Mad Catz Control Pad", 0, XTYPE_XBOX },
152 	{ 0x0738, 0x4522, "Mad Catz LumiCON", 0, XTYPE_XBOX },
153 	{ 0x0738, 0x4526, "Mad Catz Control Pad Pro", 0, XTYPE_XBOX },
154 	{ 0x0738, 0x4536, "Mad Catz MicroCON", 0, XTYPE_XBOX },
155 	{ 0x0738, 0x4540, "Mad Catz Beat Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
156 	{ 0x0738, 0x4556, "Mad Catz Lynx Wireless Controller", 0, XTYPE_XBOX },
157 	{ 0x0738, 0x4716, "Mad Catz Wired Xbox 360 Controller", 0, XTYPE_XBOX360 },
158 	{ 0x0738, 0x4718, "Mad Catz Street Fighter IV FightStick SE", 0, XTYPE_XBOX360 },
159 	{ 0x0738, 0x4726, "Mad Catz Xbox 360 Controller", 0, XTYPE_XBOX360 },
160 	{ 0x0738, 0x4728, "Mad Catz Street Fighter IV FightPad", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
161 	{ 0x0738, 0x4738, "Mad Catz Wired Xbox 360 Controller (SFIV)", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
162 	{ 0x0738, 0x4740, "Mad Catz Beat Pad", 0, XTYPE_XBOX360 },
163 	{ 0x0738, 0x4a01, "Mad Catz FightStick TE 2", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOXONE },
164 	{ 0x0738, 0x6040, "Mad Catz Beat Pad Pro", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
165 	{ 0x0738, 0xb726, "Mad Catz Xbox controller - MW2", 0, XTYPE_XBOX360 },
166 	{ 0x0738, 0xbeef, "Mad Catz JOYTECH NEO SE Advanced GamePad", XTYPE_XBOX360 },
167 	{ 0x0738, 0xcb02, "Saitek Cyborg Rumble Pad - PC/Xbox 360", 0, XTYPE_XBOX360 },
168 	{ 0x0738, 0xcb03, "Saitek P3200 Rumble Pad - PC/Xbox 360", 0, XTYPE_XBOX360 },
169 	{ 0x0738, 0xf738, "Super SFIV FightStick TE S", 0, XTYPE_XBOX360 },
170 	{ 0x0c12, 0x8802, "Zeroplus Xbox Controller", 0, XTYPE_XBOX },
171 	{ 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", DANCEPAD_MAP_CONFIG, XTYPE_XBOX },
172 	{ 0x0c12, 0x880a, "Pelican Eclipse PL-2023", 0, XTYPE_XBOX },
173 	{ 0x0c12, 0x8810, "Zeroplus Xbox Controller", 0, XTYPE_XBOX },
174 	{ 0x0c12, 0x9902, "HAMA VibraX - *FAULTY HARDWARE*", 0, XTYPE_XBOX },
175 	{ 0x0d2f, 0x0002, "Andamiro Pump It Up pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
176 	{ 0x0e4c, 0x1097, "Radica Gamester Controller", 0, XTYPE_XBOX },
177 	{ 0x0e4c, 0x2390, "Radica Games Jtech Controller", 0, XTYPE_XBOX },
178 	{ 0x0e6f, 0x0003, "Logic3 Freebird wireless Controller", 0, XTYPE_XBOX },
179 	{ 0x0e6f, 0x0005, "Eclipse wireless Controller", 0, XTYPE_XBOX },
180 	{ 0x0e6f, 0x0006, "Edge wireless Controller", 0, XTYPE_XBOX },
181 	{ 0x0e6f, 0x0105, "HSM3 Xbox360 dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
182 	{ 0x0e6f, 0x0113, "Afterglow AX.1 Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
183 	{ 0x0e6f, 0x011f, "Rock Candy Gamepad Wired Controller", 0, XTYPE_XBOX360 },
184 	{ 0x0e6f, 0x0139, "Afterglow Prismatic Wired Controller", 0, XTYPE_XBOXONE },
185 	{ 0x0e6f, 0x0146, "Rock Candy Wired Controller for Xbox One", 0, XTYPE_XBOXONE },
186 	{ 0x0e6f, 0x0201, "Pelican PL-3601 'TSZ' Wired Xbox 360 Controller", 0, XTYPE_XBOX360 },
187 	{ 0x0e6f, 0x0213, "Afterglow Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
188 	{ 0x0e6f, 0x021f, "Rock Candy Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
189 	{ 0x0e6f, 0x0301, "Logic3 Controller", 0, XTYPE_XBOX360 },
190 	{ 0x0e6f, 0x0401, "Logic3 Controller", 0, XTYPE_XBOX360 },
191 	{ 0x0e6f, 0x0413, "Afterglow AX.1 Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
192 	{ 0x0e8f, 0x0201, "SmartJoy Frag Xpad/PS2 adaptor", 0, XTYPE_XBOX },
193 	{ 0x0e8f, 0x3008, "Generic xbox control (dealextreme)", 0, XTYPE_XBOX },
194 	{ 0x0f0d, 0x000a, "Hori Co. DOA4 FightStick", 0, XTYPE_XBOX360 },
195 	{ 0x0f0d, 0x000d, "Hori Fighting Stick EX2", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
196 	{ 0x0f0d, 0x0016, "Hori Real Arcade Pro.EX", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
197 	{ 0x0f0d, 0x0067, "HORIPAD ONE", 0, XTYPE_XBOXONE },
198 	{ 0x0f30, 0x0202, "Joytech Advanced Controller", 0, XTYPE_XBOX },
199 	{ 0x0f30, 0x8888, "BigBen XBMiniPad Controller", 0, XTYPE_XBOX },
200 	{ 0x102c, 0xff0c, "Joytech Wireless Advanced Controller", 0, XTYPE_XBOX },
201 	{ 0x12ab, 0x0004, "Honey Bee Xbox360 dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
202 	{ 0x12ab, 0x0301, "PDP AFTERGLOW AX.1", 0, XTYPE_XBOX360 },
203 	{ 0x12ab, 0x8809, "Xbox DDR dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
204 	{ 0x1430, 0x4748, "RedOctane Guitar Hero X-plorer", 0, XTYPE_XBOX360 },
205 	{ 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
206 	{ 0x146b, 0x0601, "BigBen Interactive XBOX 360 Controller", 0, XTYPE_XBOX360 },
207 	{ 0x1532, 0x0037, "Razer Sabertooth", 0, XTYPE_XBOX360 },
208 	{ 0x1532, 0x0a03, "Razer Wildcat", 0, XTYPE_XBOXONE },
209 	{ 0x15e4, 0x3f00, "Power A Mini Pro Elite", 0, XTYPE_XBOX360 },
210 	{ 0x15e4, 0x3f0a, "Xbox Airflo wired controller", 0, XTYPE_XBOX360 },
211 	{ 0x15e4, 0x3f10, "Batarang Xbox 360 controller", 0, XTYPE_XBOX360 },
212 	{ 0x162e, 0xbeef, "Joytech Neo-Se Take2", 0, XTYPE_XBOX360 },
213 	{ 0x1689, 0xfd00, "Razer Onza Tournament Edition", 0, XTYPE_XBOX360 },
214 	{ 0x1689, 0xfd01, "Razer Onza Classic Edition", 0, XTYPE_XBOX360 },
215 	{ 0x1689, 0xfe00, "Razer Sabertooth", 0, XTYPE_XBOX360 },
216 	{ 0x1bad, 0x0002, "Harmonix Rock Band Guitar", 0, XTYPE_XBOX360 },
217 	{ 0x1bad, 0x0003, "Harmonix Rock Band Drumkit", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
218 	{ 0x1bad, 0xf016, "Mad Catz Xbox 360 Controller", 0, XTYPE_XBOX360 },
219 	{ 0x1bad, 0xf018, "Mad Catz Street Fighter IV SE Fighting Stick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
220 	{ 0x1bad, 0xf019, "Mad Catz Brawlstick for Xbox 360", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
221 	{ 0x1bad, 0xf021, "Mad Cats Ghost Recon FS GamePad", 0, XTYPE_XBOX360 },
222 	{ 0x1bad, 0xf023, "MLG Pro Circuit Controller (Xbox)", 0, XTYPE_XBOX360 },
223 	{ 0x1bad, 0xf028, "Street Fighter IV FightPad", 0, XTYPE_XBOX360 },
224 	{ 0x1bad, 0xf02e, "Mad Catz Fightpad", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
225 	{ 0x1bad, 0xf038, "Street Fighter IV FightStick TE", 0, XTYPE_XBOX360 },
226 	{ 0x1bad, 0xf03a, "Mad Catz SFxT Fightstick Pro", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
227 	{ 0x1bad, 0xf900, "Harmonix Xbox 360 Controller", 0, XTYPE_XBOX360 },
228 	{ 0x1bad, 0xf901, "Gamestop Xbox 360 Controller", 0, XTYPE_XBOX360 },
229 	{ 0x1bad, 0xf903, "Tron Xbox 360 controller", 0, XTYPE_XBOX360 },
230 	{ 0x1bad, 0xfa01, "MadCatz GamePad", 0, XTYPE_XBOX360 },
231 	{ 0x24c6, 0x5000, "Razer Atrox Arcade Stick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
232 	{ 0x24c6, 0x5300, "PowerA MINI PROEX Controller", 0, XTYPE_XBOX360 },
233 	{ 0x24c6, 0x5303, "Xbox Airflo wired controller", 0, XTYPE_XBOX360 },
234 	{ 0x24c6, 0x531a, "PowerA Pro Ex", 0, XTYPE_XBOX360 },
235 	{ 0x24c6, 0x5397, "FUS1ON Tournament Controller", 0, XTYPE_XBOX360 },
236 	{ 0x24c6, 0x541a, "PowerA Xbox One Mini Wired Controller", 0, XTYPE_XBOXONE },
237 	{ 0x24c6, 0x542a, "Xbox ONE spectra", 0, XTYPE_XBOXONE },
238 	{ 0x24c6, 0x543a, "PowerA Xbox One wired controller", 0, XTYPE_XBOXONE },
239 	{ 0x24c6, 0x5500, "Hori XBOX 360 EX 2 with Turbo", 0, XTYPE_XBOX360 },
240 	{ 0x24c6, 0x5501, "Hori Real Arcade Pro VX-SA", 0, XTYPE_XBOX360 },
241 	{ 0x24c6, 0x5503, "Hori Fighting Edge", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
242 	{ 0x24c6, 0x5506, "Hori SOULCALIBUR V Stick", 0, XTYPE_XBOX360 },
243 	{ 0x24c6, 0x550d, "Hori GEM Xbox controller", 0, XTYPE_XBOX360 },
244 	{ 0x24c6, 0x5b02, "Thrustmaster, Inc. GPX Controller", 0, XTYPE_XBOX360 },
245 	{ 0x24c6, 0x5b03, "Thrustmaster Ferrari 458 Racing Wheel", 0, XTYPE_XBOX360 },
246 	{ 0x24c6, 0x5d04, "Razer Sabertooth", 0, XTYPE_XBOX360 },
247 	{ 0xffff, 0xffff, "Chinese-made Xbox Controller", 0, XTYPE_XBOX },
248 	{ 0x0000, 0x0000, "Generic X-Box pad", 0, XTYPE_UNKNOWN }
249 };
250 
251 /* buttons shared with xbox and xbox360 */
252 static const signed short xpad_common_btn[] = {
253 	BTN_A, BTN_B, BTN_X, BTN_Y,			/* "analog" buttons */
254 	BTN_START, BTN_SELECT, BTN_THUMBL, BTN_THUMBR,	/* start/back/sticks */
255 	-1						/* terminating entry */
256 };
257 
258 /* original xbox controllers only */
259 static const signed short xpad_btn[] = {
260 	BTN_C, BTN_Z,		/* "analog" buttons */
261 	-1			/* terminating entry */
262 };
263 
264 /* used when dpad is mapped to buttons */
265 static const signed short xpad_btn_pad[] = {
266 	BTN_TRIGGER_HAPPY1, BTN_TRIGGER_HAPPY2,		/* d-pad left, right */
267 	BTN_TRIGGER_HAPPY3, BTN_TRIGGER_HAPPY4,		/* d-pad up, down */
268 	-1				/* terminating entry */
269 };
270 
271 /* used when triggers are mapped to buttons */
272 static const signed short xpad_btn_triggers[] = {
273 	BTN_TL2, BTN_TR2,		/* triggers left/right */
274 	-1
275 };
276 
277 static const signed short xpad360_btn[] = {  /* buttons for x360 controller */
278 	BTN_TL, BTN_TR,		/* Button LB/RB */
279 	BTN_MODE,		/* The big X button */
280 	-1
281 };
282 
283 static const signed short xpad_abs[] = {
284 	ABS_X, ABS_Y,		/* left stick */
285 	ABS_RX, ABS_RY,		/* right stick */
286 	-1			/* terminating entry */
287 };
288 
289 /* used when dpad is mapped to axes */
290 static const signed short xpad_abs_pad[] = {
291 	ABS_HAT0X, ABS_HAT0Y,	/* d-pad axes */
292 	-1			/* terminating entry */
293 };
294 
295 /* used when triggers are mapped to axes */
296 static const signed short xpad_abs_triggers[] = {
297 	ABS_Z, ABS_RZ,		/* triggers left/right */
298 	-1
299 };
300 
301 /*
302  * Xbox 360 has a vendor-specific class, so we cannot match it with only
303  * USB_INTERFACE_INFO (also specifically refused by USB subsystem), so we
304  * match against vendor id as well. Wired Xbox 360 devices have protocol 1,
305  * wireless controllers have protocol 129.
306  */
307 #define XPAD_XBOX360_VENDOR_PROTOCOL(vend,pr) \
308 	.match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO, \
309 	.idVendor = (vend), \
310 	.bInterfaceClass = USB_CLASS_VENDOR_SPEC, \
311 	.bInterfaceSubClass = 93, \
312 	.bInterfaceProtocol = (pr)
313 #define XPAD_XBOX360_VENDOR(vend) \
314 	{ XPAD_XBOX360_VENDOR_PROTOCOL(vend,1) }, \
315 	{ XPAD_XBOX360_VENDOR_PROTOCOL(vend,129) }
316 
317 /* The Xbox One controller uses subclass 71 and protocol 208. */
318 #define XPAD_XBOXONE_VENDOR_PROTOCOL(vend, pr) \
319 	.match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO, \
320 	.idVendor = (vend), \
321 	.bInterfaceClass = USB_CLASS_VENDOR_SPEC, \
322 	.bInterfaceSubClass = 71, \
323 	.bInterfaceProtocol = (pr)
324 #define XPAD_XBOXONE_VENDOR(vend) \
325 	{ XPAD_XBOXONE_VENDOR_PROTOCOL(vend, 208) }
326 
327 static struct usb_device_id xpad_table[] = {
328 	{ USB_INTERFACE_INFO('X', 'B', 0) },	/* X-Box USB-IF not approved class */
329 	XPAD_XBOX360_VENDOR(0x044f),		/* Thrustmaster X-Box 360 controllers */
330 	XPAD_XBOX360_VENDOR(0x045e),		/* Microsoft X-Box 360 controllers */
331 	XPAD_XBOXONE_VENDOR(0x045e),		/* Microsoft X-Box One controllers */
332 	XPAD_XBOX360_VENDOR(0x046d),		/* Logitech X-Box 360 style controllers */
333 	XPAD_XBOX360_VENDOR(0x056e),		/* Elecom JC-U3613M */
334 	XPAD_XBOX360_VENDOR(0x0738),		/* Mad Catz X-Box 360 controllers */
335 	{ USB_DEVICE(0x0738, 0x4540) },		/* Mad Catz Beat Pad */
336 	XPAD_XBOXONE_VENDOR(0x0738),		/* Mad Catz FightStick TE 2 */
337 	XPAD_XBOX360_VENDOR(0x0e6f),		/* 0x0e6f X-Box 360 controllers */
338 	XPAD_XBOXONE_VENDOR(0x0e6f),		/* 0x0e6f X-Box One controllers */
339 	XPAD_XBOX360_VENDOR(0x0f0d),		/* Hori Controllers */
340 	XPAD_XBOXONE_VENDOR(0x0f0d),		/* Hori Controllers */
341 	XPAD_XBOX360_VENDOR(0x12ab),		/* X-Box 360 dance pads */
342 	XPAD_XBOX360_VENDOR(0x1430),		/* RedOctane X-Box 360 controllers */
343 	XPAD_XBOX360_VENDOR(0x146b),		/* BigBen Interactive Controllers */
344 	XPAD_XBOX360_VENDOR(0x1532),		/* Razer Sabertooth */
345 	XPAD_XBOXONE_VENDOR(0x1532),		/* Razer Wildcat */
346 	XPAD_XBOX360_VENDOR(0x15e4),		/* Numark X-Box 360 controllers */
347 	XPAD_XBOX360_VENDOR(0x162e),		/* Joytech X-Box 360 controllers */
348 	XPAD_XBOX360_VENDOR(0x1689),		/* Razer Onza */
349 	XPAD_XBOX360_VENDOR(0x1bad),		/* Harminix Rock Band Guitar and Drums */
350 	XPAD_XBOX360_VENDOR(0x24c6),		/* PowerA Controllers */
351 	XPAD_XBOXONE_VENDOR(0x24c6),		/* PowerA Controllers */
352 	{ }
353 };
354 
355 MODULE_DEVICE_TABLE(usb, xpad_table);
356 
357 struct xboxone_init_packet {
358 	u16 idVendor;
359 	u16 idProduct;
360 	const u8 *data;
361 	u8 len;
362 };
363 
364 #define XBOXONE_INIT_PKT(_vid, _pid, _data)		\
365 	{						\
366 		.idVendor	= (_vid),		\
367 		.idProduct	= (_pid),		\
368 		.data		= (_data),		\
369 		.len		= ARRAY_SIZE(_data),	\
370 	}
371 
372 
373 /*
374  * This packet is required for all Xbox One pads with 2015
375  * or later firmware installed (or present from the factory).
376  */
377 static const u8 xboxone_fw2015_init[] = {
378 	0x05, 0x20, 0x00, 0x01, 0x00
379 };
380 
381 /*
382  * This packet is required for the Titanfall 2 Xbox One pads
383  * (0x0e6f:0x0165) to finish initialization and for Hori pads
384  * (0x0f0d:0x0067) to make the analog sticks work.
385  */
386 static const u8 xboxone_hori_init[] = {
387 	0x01, 0x20, 0x00, 0x09, 0x00, 0x04, 0x20, 0x3a,
388 	0x00, 0x00, 0x00, 0x80, 0x00
389 };
390 
391 /*
392  * A rumble packet is required for some PowerA pads to start
393  * sending input reports. One of those pads is (0x24c6:0x543a).
394  */
395 static const u8 xboxone_zerorumble_init[] = {
396 	0x09, 0x00, 0x00, 0x09, 0x00, 0x0F, 0x00, 0x00,
397 	0x00, 0x00, 0x00, 0x00, 0x00
398 };
399 
400 /*
401  * This specifies the selection of init packets that a gamepad
402  * will be sent on init *and* the order in which they will be
403  * sent. The correct sequence number will be added when the
404  * packet is going to be sent.
405  */
406 static const struct xboxone_init_packet xboxone_init_packets[] = {
407 	XBOXONE_INIT_PKT(0x0e6f, 0x0165, xboxone_hori_init),
408 	XBOXONE_INIT_PKT(0x0f0d, 0x0067, xboxone_hori_init),
409 	XBOXONE_INIT_PKT(0x0000, 0x0000, xboxone_fw2015_init),
410 	XBOXONE_INIT_PKT(0x24c6, 0x541a, xboxone_zerorumble_init),
411 	XBOXONE_INIT_PKT(0x24c6, 0x542a, xboxone_zerorumble_init),
412 	XBOXONE_INIT_PKT(0x24c6, 0x543a, xboxone_zerorumble_init),
413 };
414 
415 struct xpad_output_packet {
416 	u8 data[XPAD_PKT_LEN];
417 	u8 len;
418 	bool pending;
419 };
420 
421 #define XPAD_OUT_CMD_IDX	0
422 #define XPAD_OUT_FF_IDX		1
423 #define XPAD_OUT_LED_IDX	(1 + IS_ENABLED(CONFIG_JOYSTICK_XPAD_FF))
424 #define XPAD_NUM_OUT_PACKETS	(1 + \
425 				 IS_ENABLED(CONFIG_JOYSTICK_XPAD_FF) + \
426 				 IS_ENABLED(CONFIG_JOYSTICK_XPAD_LEDS))
427 
428 struct usb_xpad {
429 	struct input_dev *dev;		/* input device interface */
430 	struct input_dev __rcu *x360w_dev;
431 	struct usb_device *udev;	/* usb device */
432 	struct usb_interface *intf;	/* usb interface */
433 
434 	bool pad_present;
435 	bool input_created;
436 
437 	struct urb *irq_in;		/* urb for interrupt in report */
438 	unsigned char *idata;		/* input data */
439 	dma_addr_t idata_dma;
440 
441 	struct urb *irq_out;		/* urb for interrupt out report */
442 	struct usb_anchor irq_out_anchor;
443 	bool irq_out_active;		/* we must not use an active URB */
444 	u8 odata_serial;		/* serial number for xbox one protocol */
445 	unsigned char *odata;		/* output data */
446 	dma_addr_t odata_dma;
447 	spinlock_t odata_lock;
448 
449 	struct xpad_output_packet out_packets[XPAD_NUM_OUT_PACKETS];
450 	int last_out_packet;
451 	int init_seq;
452 
453 #if defined(CONFIG_JOYSTICK_XPAD_LEDS)
454 	struct xpad_led *led;
455 #endif
456 
457 	char phys[64];			/* physical device path */
458 
459 	int mapping;			/* map d-pad to buttons or to axes */
460 	int xtype;			/* type of xbox device */
461 	int pad_nr;			/* the order x360 pads were attached */
462 	const char *name;		/* name of the device */
463 	struct work_struct work;	/* init/remove device from callback */
464 };
465 
466 static int xpad_init_input(struct usb_xpad *xpad);
467 static void xpad_deinit_input(struct usb_xpad *xpad);
468 static void xpadone_ack_mode_report(struct usb_xpad *xpad, u8 seq_num);
469 
470 /*
471  *	xpad_process_packet
472  *
473  *	Completes a request by converting the data into events for the
474  *	input subsystem.
475  *
476  *	The used report descriptor was taken from ITO Takayukis website:
477  *	 http://euc.jp/periphs/xbox-controller.ja.html
478  */
479 static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
480 {
481 	struct input_dev *dev = xpad->dev;
482 
483 	if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
484 		/* left stick */
485 		input_report_abs(dev, ABS_X,
486 				 (__s16) le16_to_cpup((__le16 *)(data + 12)));
487 		input_report_abs(dev, ABS_Y,
488 				 ~(__s16) le16_to_cpup((__le16 *)(data + 14)));
489 
490 		/* right stick */
491 		input_report_abs(dev, ABS_RX,
492 				 (__s16) le16_to_cpup((__le16 *)(data + 16)));
493 		input_report_abs(dev, ABS_RY,
494 				 ~(__s16) le16_to_cpup((__le16 *)(data + 18)));
495 	}
496 
497 	/* triggers left/right */
498 	if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
499 		input_report_key(dev, BTN_TL2, data[10]);
500 		input_report_key(dev, BTN_TR2, data[11]);
501 	} else {
502 		input_report_abs(dev, ABS_Z, data[10]);
503 		input_report_abs(dev, ABS_RZ, data[11]);
504 	}
505 
506 	/* digital pad */
507 	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
508 		/* dpad as buttons (left, right, up, down) */
509 		input_report_key(dev, BTN_TRIGGER_HAPPY1, data[2] & 0x04);
510 		input_report_key(dev, BTN_TRIGGER_HAPPY2, data[2] & 0x08);
511 		input_report_key(dev, BTN_TRIGGER_HAPPY3, data[2] & 0x01);
512 		input_report_key(dev, BTN_TRIGGER_HAPPY4, data[2] & 0x02);
513 	} else {
514 		input_report_abs(dev, ABS_HAT0X,
515 				 !!(data[2] & 0x08) - !!(data[2] & 0x04));
516 		input_report_abs(dev, ABS_HAT0Y,
517 				 !!(data[2] & 0x02) - !!(data[2] & 0x01));
518 	}
519 
520 	/* start/back buttons and stick press left/right */
521 	input_report_key(dev, BTN_START,  data[2] & 0x10);
522 	input_report_key(dev, BTN_SELECT, data[2] & 0x20);
523 	input_report_key(dev, BTN_THUMBL, data[2] & 0x40);
524 	input_report_key(dev, BTN_THUMBR, data[2] & 0x80);
525 
526 	/* "analog" buttons A, B, X, Y */
527 	input_report_key(dev, BTN_A, data[4]);
528 	input_report_key(dev, BTN_B, data[5]);
529 	input_report_key(dev, BTN_X, data[6]);
530 	input_report_key(dev, BTN_Y, data[7]);
531 
532 	/* "analog" buttons black, white */
533 	input_report_key(dev, BTN_C, data[8]);
534 	input_report_key(dev, BTN_Z, data[9]);
535 
536 	input_sync(dev);
537 }
538 
539 /*
540  *	xpad360_process_packet
541  *
542  *	Completes a request by converting the data into events for the
543  *	input subsystem. It is version for xbox 360 controller
544  *
545  *	The used report descriptor was taken from:
546  *		http://www.free60.org/wiki/Gamepad
547  */
548 
549 static void xpad360_process_packet(struct usb_xpad *xpad, struct input_dev *dev,
550 				   u16 cmd, unsigned char *data)
551 {
552 	/* valid pad data */
553 	if (data[0] != 0x00)
554 		return;
555 
556 	/* digital pad */
557 	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
558 		/* dpad as buttons (left, right, up, down) */
559 		input_report_key(dev, BTN_TRIGGER_HAPPY1, data[2] & 0x04);
560 		input_report_key(dev, BTN_TRIGGER_HAPPY2, data[2] & 0x08);
561 		input_report_key(dev, BTN_TRIGGER_HAPPY3, data[2] & 0x01);
562 		input_report_key(dev, BTN_TRIGGER_HAPPY4, data[2] & 0x02);
563 	}
564 
565 	/*
566 	 * This should be a simple else block. However historically
567 	 * xbox360w has mapped DPAD to buttons while xbox360 did not. This
568 	 * made no sense, but now we can not just switch back and have to
569 	 * support both behaviors.
570 	 */
571 	if (!(xpad->mapping & MAP_DPAD_TO_BUTTONS) ||
572 	    xpad->xtype == XTYPE_XBOX360W) {
573 		input_report_abs(dev, ABS_HAT0X,
574 				 !!(data[2] & 0x08) - !!(data[2] & 0x04));
575 		input_report_abs(dev, ABS_HAT0Y,
576 				 !!(data[2] & 0x02) - !!(data[2] & 0x01));
577 	}
578 
579 	/* start/back buttons */
580 	input_report_key(dev, BTN_START,  data[2] & 0x10);
581 	input_report_key(dev, BTN_SELECT, data[2] & 0x20);
582 
583 	/* stick press left/right */
584 	input_report_key(dev, BTN_THUMBL, data[2] & 0x40);
585 	input_report_key(dev, BTN_THUMBR, data[2] & 0x80);
586 
587 	/* buttons A,B,X,Y,TL,TR and MODE */
588 	input_report_key(dev, BTN_A,	data[3] & 0x10);
589 	input_report_key(dev, BTN_B,	data[3] & 0x20);
590 	input_report_key(dev, BTN_X,	data[3] & 0x40);
591 	input_report_key(dev, BTN_Y,	data[3] & 0x80);
592 	input_report_key(dev, BTN_TL,	data[3] & 0x01);
593 	input_report_key(dev, BTN_TR,	data[3] & 0x02);
594 	input_report_key(dev, BTN_MODE,	data[3] & 0x04);
595 
596 	if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
597 		/* left stick */
598 		input_report_abs(dev, ABS_X,
599 				 (__s16) le16_to_cpup((__le16 *)(data + 6)));
600 		input_report_abs(dev, ABS_Y,
601 				 ~(__s16) le16_to_cpup((__le16 *)(data + 8)));
602 
603 		/* right stick */
604 		input_report_abs(dev, ABS_RX,
605 				 (__s16) le16_to_cpup((__le16 *)(data + 10)));
606 		input_report_abs(dev, ABS_RY,
607 				 ~(__s16) le16_to_cpup((__le16 *)(data + 12)));
608 	}
609 
610 	/* triggers left/right */
611 	if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
612 		input_report_key(dev, BTN_TL2, data[4]);
613 		input_report_key(dev, BTN_TR2, data[5]);
614 	} else {
615 		input_report_abs(dev, ABS_Z, data[4]);
616 		input_report_abs(dev, ABS_RZ, data[5]);
617 	}
618 
619 	input_sync(dev);
620 }
621 
622 static void xpad_presence_work(struct work_struct *work)
623 {
624 	struct usb_xpad *xpad = container_of(work, struct usb_xpad, work);
625 	int error;
626 
627 	if (xpad->pad_present) {
628 		error = xpad_init_input(xpad);
629 		if (error) {
630 			/* complain only, not much else we can do here */
631 			dev_err(&xpad->dev->dev,
632 				"unable to init device: %d\n", error);
633 		} else {
634 			rcu_assign_pointer(xpad->x360w_dev, xpad->dev);
635 		}
636 	} else {
637 		RCU_INIT_POINTER(xpad->x360w_dev, NULL);
638 		synchronize_rcu();
639 		/*
640 		 * Now that we are sure xpad360w_process_packet is not
641 		 * using input device we can get rid of it.
642 		 */
643 		xpad_deinit_input(xpad);
644 	}
645 }
646 
647 /*
648  * xpad360w_process_packet
649  *
650  * Completes a request by converting the data into events for the
651  * input subsystem. It is version for xbox 360 wireless controller.
652  *
653  * Byte.Bit
654  * 00.1 - Status change: The controller or headset has connected/disconnected
655  *                       Bits 01.7 and 01.6 are valid
656  * 01.7 - Controller present
657  * 01.6 - Headset present
658  * 01.1 - Pad state (Bytes 4+) valid
659  *
660  */
661 static void xpad360w_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
662 {
663 	struct input_dev *dev;
664 	bool present;
665 
666 	/* Presence change */
667 	if (data[0] & 0x08) {
668 		present = (data[1] & 0x80) != 0;
669 
670 		if (xpad->pad_present != present) {
671 			xpad->pad_present = present;
672 			schedule_work(&xpad->work);
673 		}
674 	}
675 
676 	/* Valid pad data */
677 	if (data[1] != 0x1)
678 		return;
679 
680 	rcu_read_lock();
681 	dev = rcu_dereference(xpad->x360w_dev);
682 	if (dev)
683 		xpad360_process_packet(xpad, dev, cmd, &data[4]);
684 	rcu_read_unlock();
685 }
686 
687 /*
688  *	xpadone_process_packet
689  *
690  *	Completes a request by converting the data into events for the
691  *	input subsystem. This version is for the Xbox One controller.
692  *
693  *	The report format was gleaned from
694  *	https://github.com/kylelemons/xbox/blob/master/xbox.go
695  */
696 static void xpadone_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
697 {
698 	struct input_dev *dev = xpad->dev;
699 
700 	/* the xbox button has its own special report */
701 	if (data[0] == 0X07) {
702 		/*
703 		 * The Xbox One S controller requires these reports to be
704 		 * acked otherwise it continues sending them forever and
705 		 * won't report further mode button events.
706 		 */
707 		if (data[1] == 0x30)
708 			xpadone_ack_mode_report(xpad, data[2]);
709 
710 		input_report_key(dev, BTN_MODE, data[4] & 0x01);
711 		input_sync(dev);
712 		return;
713 	}
714 	/* check invalid packet */
715 	else if (data[0] != 0X20)
716 		return;
717 
718 	/* menu/view buttons */
719 	input_report_key(dev, BTN_START,  data[4] & 0x04);
720 	input_report_key(dev, BTN_SELECT, data[4] & 0x08);
721 
722 	/* buttons A,B,X,Y */
723 	input_report_key(dev, BTN_A,	data[4] & 0x10);
724 	input_report_key(dev, BTN_B,	data[4] & 0x20);
725 	input_report_key(dev, BTN_X,	data[4] & 0x40);
726 	input_report_key(dev, BTN_Y,	data[4] & 0x80);
727 
728 	/* digital pad */
729 	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
730 		/* dpad as buttons (left, right, up, down) */
731 		input_report_key(dev, BTN_TRIGGER_HAPPY1, data[5] & 0x04);
732 		input_report_key(dev, BTN_TRIGGER_HAPPY2, data[5] & 0x08);
733 		input_report_key(dev, BTN_TRIGGER_HAPPY3, data[5] & 0x01);
734 		input_report_key(dev, BTN_TRIGGER_HAPPY4, data[5] & 0x02);
735 	} else {
736 		input_report_abs(dev, ABS_HAT0X,
737 				 !!(data[5] & 0x08) - !!(data[5] & 0x04));
738 		input_report_abs(dev, ABS_HAT0Y,
739 				 !!(data[5] & 0x02) - !!(data[5] & 0x01));
740 	}
741 
742 	/* TL/TR */
743 	input_report_key(dev, BTN_TL,	data[5] & 0x10);
744 	input_report_key(dev, BTN_TR,	data[5] & 0x20);
745 
746 	/* stick press left/right */
747 	input_report_key(dev, BTN_THUMBL, data[5] & 0x40);
748 	input_report_key(dev, BTN_THUMBR, data[5] & 0x80);
749 
750 	if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
751 		/* left stick */
752 		input_report_abs(dev, ABS_X,
753 				 (__s16) le16_to_cpup((__le16 *)(data + 10)));
754 		input_report_abs(dev, ABS_Y,
755 				 ~(__s16) le16_to_cpup((__le16 *)(data + 12)));
756 
757 		/* right stick */
758 		input_report_abs(dev, ABS_RX,
759 				 (__s16) le16_to_cpup((__le16 *)(data + 14)));
760 		input_report_abs(dev, ABS_RY,
761 				 ~(__s16) le16_to_cpup((__le16 *)(data + 16)));
762 	}
763 
764 	/* triggers left/right */
765 	if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
766 		input_report_key(dev, BTN_TL2,
767 				 (__u16) le16_to_cpup((__le16 *)(data + 6)));
768 		input_report_key(dev, BTN_TR2,
769 				 (__u16) le16_to_cpup((__le16 *)(data + 8)));
770 	} else {
771 		input_report_abs(dev, ABS_Z,
772 				 (__u16) le16_to_cpup((__le16 *)(data + 6)));
773 		input_report_abs(dev, ABS_RZ,
774 				 (__u16) le16_to_cpup((__le16 *)(data + 8)));
775 	}
776 
777 	input_sync(dev);
778 }
779 
780 static void xpad_irq_in(struct urb *urb)
781 {
782 	struct usb_xpad *xpad = urb->context;
783 	struct device *dev = &xpad->intf->dev;
784 	int retval, status;
785 
786 	status = urb->status;
787 
788 	switch (status) {
789 	case 0:
790 		/* success */
791 		break;
792 	case -ECONNRESET:
793 	case -ENOENT:
794 	case -ESHUTDOWN:
795 		/* this urb is terminated, clean up */
796 		dev_dbg(dev, "%s - urb shutting down with status: %d\n",
797 			__func__, status);
798 		return;
799 	default:
800 		dev_dbg(dev, "%s - nonzero urb status received: %d\n",
801 			__func__, status);
802 		goto exit;
803 	}
804 
805 	switch (xpad->xtype) {
806 	case XTYPE_XBOX360:
807 		xpad360_process_packet(xpad, xpad->dev, 0, xpad->idata);
808 		break;
809 	case XTYPE_XBOX360W:
810 		xpad360w_process_packet(xpad, 0, xpad->idata);
811 		break;
812 	case XTYPE_XBOXONE:
813 		xpadone_process_packet(xpad, 0, xpad->idata);
814 		break;
815 	default:
816 		xpad_process_packet(xpad, 0, xpad->idata);
817 	}
818 
819 exit:
820 	retval = usb_submit_urb(urb, GFP_ATOMIC);
821 	if (retval)
822 		dev_err(dev, "%s - usb_submit_urb failed with result %d\n",
823 			__func__, retval);
824 }
825 
826 /* Callers must hold xpad->odata_lock spinlock */
827 static bool xpad_prepare_next_init_packet(struct usb_xpad *xpad)
828 {
829 	const struct xboxone_init_packet *init_packet;
830 
831 	if (xpad->xtype != XTYPE_XBOXONE)
832 		return false;
833 
834 	/* Perform initialization sequence for Xbox One pads that require it */
835 	while (xpad->init_seq < ARRAY_SIZE(xboxone_init_packets)) {
836 		init_packet = &xboxone_init_packets[xpad->init_seq++];
837 
838 		if (init_packet->idVendor != 0 &&
839 		    init_packet->idVendor != xpad->dev->id.vendor)
840 			continue;
841 
842 		if (init_packet->idProduct != 0 &&
843 		    init_packet->idProduct != xpad->dev->id.product)
844 			continue;
845 
846 		/* This packet applies to our device, so prepare to send it */
847 		memcpy(xpad->odata, init_packet->data, init_packet->len);
848 		xpad->irq_out->transfer_buffer_length = init_packet->len;
849 
850 		/* Update packet with current sequence number */
851 		xpad->odata[2] = xpad->odata_serial++;
852 		return true;
853 	}
854 
855 	return false;
856 }
857 
858 /* Callers must hold xpad->odata_lock spinlock */
859 static bool xpad_prepare_next_out_packet(struct usb_xpad *xpad)
860 {
861 	struct xpad_output_packet *pkt, *packet = NULL;
862 	int i;
863 
864 	/* We may have init packets to send before we can send user commands */
865 	if (xpad_prepare_next_init_packet(xpad))
866 		return true;
867 
868 	for (i = 0; i < XPAD_NUM_OUT_PACKETS; i++) {
869 		if (++xpad->last_out_packet >= XPAD_NUM_OUT_PACKETS)
870 			xpad->last_out_packet = 0;
871 
872 		pkt = &xpad->out_packets[xpad->last_out_packet];
873 		if (pkt->pending) {
874 			dev_dbg(&xpad->intf->dev,
875 				"%s - found pending output packet %d\n",
876 				__func__, xpad->last_out_packet);
877 			packet = pkt;
878 			break;
879 		}
880 	}
881 
882 	if (packet) {
883 		memcpy(xpad->odata, packet->data, packet->len);
884 		xpad->irq_out->transfer_buffer_length = packet->len;
885 		packet->pending = false;
886 		return true;
887 	}
888 
889 	return false;
890 }
891 
892 /* Callers must hold xpad->odata_lock spinlock */
893 static int xpad_try_sending_next_out_packet(struct usb_xpad *xpad)
894 {
895 	int error;
896 
897 	if (!xpad->irq_out_active && xpad_prepare_next_out_packet(xpad)) {
898 		usb_anchor_urb(xpad->irq_out, &xpad->irq_out_anchor);
899 		error = usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
900 		if (error) {
901 			dev_err(&xpad->intf->dev,
902 				"%s - usb_submit_urb failed with result %d\n",
903 				__func__, error);
904 			usb_unanchor_urb(xpad->irq_out);
905 			return -EIO;
906 		}
907 
908 		xpad->irq_out_active = true;
909 	}
910 
911 	return 0;
912 }
913 
914 static void xpad_irq_out(struct urb *urb)
915 {
916 	struct usb_xpad *xpad = urb->context;
917 	struct device *dev = &xpad->intf->dev;
918 	int status = urb->status;
919 	int error;
920 	unsigned long flags;
921 
922 	spin_lock_irqsave(&xpad->odata_lock, flags);
923 
924 	switch (status) {
925 	case 0:
926 		/* success */
927 		xpad->irq_out_active = xpad_prepare_next_out_packet(xpad);
928 		break;
929 
930 	case -ECONNRESET:
931 	case -ENOENT:
932 	case -ESHUTDOWN:
933 		/* this urb is terminated, clean up */
934 		dev_dbg(dev, "%s - urb shutting down with status: %d\n",
935 			__func__, status);
936 		xpad->irq_out_active = false;
937 		break;
938 
939 	default:
940 		dev_dbg(dev, "%s - nonzero urb status received: %d\n",
941 			__func__, status);
942 		break;
943 	}
944 
945 	if (xpad->irq_out_active) {
946 		usb_anchor_urb(urb, &xpad->irq_out_anchor);
947 		error = usb_submit_urb(urb, GFP_ATOMIC);
948 		if (error) {
949 			dev_err(dev,
950 				"%s - usb_submit_urb failed with result %d\n",
951 				__func__, error);
952 			usb_unanchor_urb(urb);
953 			xpad->irq_out_active = false;
954 		}
955 	}
956 
957 	spin_unlock_irqrestore(&xpad->odata_lock, flags);
958 }
959 
960 static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad,
961 			struct usb_endpoint_descriptor *ep_irq_out)
962 {
963 	int error;
964 
965 	if (xpad->xtype == XTYPE_UNKNOWN)
966 		return 0;
967 
968 	init_usb_anchor(&xpad->irq_out_anchor);
969 
970 	xpad->odata = usb_alloc_coherent(xpad->udev, XPAD_PKT_LEN,
971 					 GFP_KERNEL, &xpad->odata_dma);
972 	if (!xpad->odata)
973 		return -ENOMEM;
974 
975 	spin_lock_init(&xpad->odata_lock);
976 
977 	xpad->irq_out = usb_alloc_urb(0, GFP_KERNEL);
978 	if (!xpad->irq_out) {
979 		error = -ENOMEM;
980 		goto err_free_coherent;
981 	}
982 
983 	usb_fill_int_urb(xpad->irq_out, xpad->udev,
984 			 usb_sndintpipe(xpad->udev, ep_irq_out->bEndpointAddress),
985 			 xpad->odata, XPAD_PKT_LEN,
986 			 xpad_irq_out, xpad, ep_irq_out->bInterval);
987 	xpad->irq_out->transfer_dma = xpad->odata_dma;
988 	xpad->irq_out->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
989 
990 	return 0;
991 
992 err_free_coherent:
993 	usb_free_coherent(xpad->udev, XPAD_PKT_LEN, xpad->odata, xpad->odata_dma);
994 	return error;
995 }
996 
997 static void xpad_stop_output(struct usb_xpad *xpad)
998 {
999 	if (xpad->xtype != XTYPE_UNKNOWN) {
1000 		if (!usb_wait_anchor_empty_timeout(&xpad->irq_out_anchor,
1001 						   5000)) {
1002 			dev_warn(&xpad->intf->dev,
1003 				 "timed out waiting for output URB to complete, killing\n");
1004 			usb_kill_anchored_urbs(&xpad->irq_out_anchor);
1005 		}
1006 	}
1007 }
1008 
1009 static void xpad_deinit_output(struct usb_xpad *xpad)
1010 {
1011 	if (xpad->xtype != XTYPE_UNKNOWN) {
1012 		usb_free_urb(xpad->irq_out);
1013 		usb_free_coherent(xpad->udev, XPAD_PKT_LEN,
1014 				xpad->odata, xpad->odata_dma);
1015 	}
1016 }
1017 
1018 static int xpad_inquiry_pad_presence(struct usb_xpad *xpad)
1019 {
1020 	struct xpad_output_packet *packet =
1021 			&xpad->out_packets[XPAD_OUT_CMD_IDX];
1022 	unsigned long flags;
1023 	int retval;
1024 
1025 	spin_lock_irqsave(&xpad->odata_lock, flags);
1026 
1027 	packet->data[0] = 0x08;
1028 	packet->data[1] = 0x00;
1029 	packet->data[2] = 0x0F;
1030 	packet->data[3] = 0xC0;
1031 	packet->data[4] = 0x00;
1032 	packet->data[5] = 0x00;
1033 	packet->data[6] = 0x00;
1034 	packet->data[7] = 0x00;
1035 	packet->data[8] = 0x00;
1036 	packet->data[9] = 0x00;
1037 	packet->data[10] = 0x00;
1038 	packet->data[11] = 0x00;
1039 	packet->len = 12;
1040 	packet->pending = true;
1041 
1042 	/* Reset the sequence so we send out presence first */
1043 	xpad->last_out_packet = -1;
1044 	retval = xpad_try_sending_next_out_packet(xpad);
1045 
1046 	spin_unlock_irqrestore(&xpad->odata_lock, flags);
1047 
1048 	return retval;
1049 }
1050 
1051 static int xpad_start_xbox_one(struct usb_xpad *xpad)
1052 {
1053 	unsigned long flags;
1054 	int retval;
1055 
1056 	spin_lock_irqsave(&xpad->odata_lock, flags);
1057 
1058 	/*
1059 	 * Begin the init sequence by attempting to send a packet.
1060 	 * We will cycle through the init packet sequence before
1061 	 * sending any packets from the output ring.
1062 	 */
1063 	xpad->init_seq = 0;
1064 	retval = xpad_try_sending_next_out_packet(xpad);
1065 
1066 	spin_unlock_irqrestore(&xpad->odata_lock, flags);
1067 
1068 	return retval;
1069 }
1070 
1071 static void xpadone_ack_mode_report(struct usb_xpad *xpad, u8 seq_num)
1072 {
1073 	unsigned long flags;
1074 	struct xpad_output_packet *packet =
1075 			&xpad->out_packets[XPAD_OUT_CMD_IDX];
1076 	static const u8 mode_report_ack[] = {
1077 		0x01, 0x20, 0x00, 0x09, 0x00, 0x07, 0x20, 0x02,
1078 		0x00, 0x00, 0x00, 0x00, 0x00
1079 	};
1080 
1081 	spin_lock_irqsave(&xpad->odata_lock, flags);
1082 
1083 	packet->len = sizeof(mode_report_ack);
1084 	memcpy(packet->data, mode_report_ack, packet->len);
1085 	packet->data[2] = seq_num;
1086 	packet->pending = true;
1087 
1088 	/* Reset the sequence so we send out the ack now */
1089 	xpad->last_out_packet = -1;
1090 	xpad_try_sending_next_out_packet(xpad);
1091 
1092 	spin_unlock_irqrestore(&xpad->odata_lock, flags);
1093 }
1094 
1095 #ifdef CONFIG_JOYSTICK_XPAD_FF
1096 static int xpad_play_effect(struct input_dev *dev, void *data, struct ff_effect *effect)
1097 {
1098 	struct usb_xpad *xpad = input_get_drvdata(dev);
1099 	struct xpad_output_packet *packet = &xpad->out_packets[XPAD_OUT_FF_IDX];
1100 	__u16 strong;
1101 	__u16 weak;
1102 	int retval;
1103 	unsigned long flags;
1104 
1105 	if (effect->type != FF_RUMBLE)
1106 		return 0;
1107 
1108 	strong = effect->u.rumble.strong_magnitude;
1109 	weak = effect->u.rumble.weak_magnitude;
1110 
1111 	spin_lock_irqsave(&xpad->odata_lock, flags);
1112 
1113 	switch (xpad->xtype) {
1114 	case XTYPE_XBOX:
1115 		packet->data[0] = 0x00;
1116 		packet->data[1] = 0x06;
1117 		packet->data[2] = 0x00;
1118 		packet->data[3] = strong / 256;	/* left actuator */
1119 		packet->data[4] = 0x00;
1120 		packet->data[5] = weak / 256;	/* right actuator */
1121 		packet->len = 6;
1122 		packet->pending = true;
1123 		break;
1124 
1125 	case XTYPE_XBOX360:
1126 		packet->data[0] = 0x00;
1127 		packet->data[1] = 0x08;
1128 		packet->data[2] = 0x00;
1129 		packet->data[3] = strong / 256;  /* left actuator? */
1130 		packet->data[4] = weak / 256;	/* right actuator? */
1131 		packet->data[5] = 0x00;
1132 		packet->data[6] = 0x00;
1133 		packet->data[7] = 0x00;
1134 		packet->len = 8;
1135 		packet->pending = true;
1136 		break;
1137 
1138 	case XTYPE_XBOX360W:
1139 		packet->data[0] = 0x00;
1140 		packet->data[1] = 0x01;
1141 		packet->data[2] = 0x0F;
1142 		packet->data[3] = 0xC0;
1143 		packet->data[4] = 0x00;
1144 		packet->data[5] = strong / 256;
1145 		packet->data[6] = weak / 256;
1146 		packet->data[7] = 0x00;
1147 		packet->data[8] = 0x00;
1148 		packet->data[9] = 0x00;
1149 		packet->data[10] = 0x00;
1150 		packet->data[11] = 0x00;
1151 		packet->len = 12;
1152 		packet->pending = true;
1153 		break;
1154 
1155 	case XTYPE_XBOXONE:
1156 		packet->data[0] = 0x09; /* activate rumble */
1157 		packet->data[1] = 0x00;
1158 		packet->data[2] = xpad->odata_serial++;
1159 		packet->data[3] = 0x09;
1160 		packet->data[4] = 0x00;
1161 		packet->data[5] = 0x0F;
1162 		packet->data[6] = 0x00;
1163 		packet->data[7] = 0x00;
1164 		packet->data[8] = strong / 512;	/* left actuator */
1165 		packet->data[9] = weak / 512;	/* right actuator */
1166 		packet->data[10] = 0xFF; /* on period */
1167 		packet->data[11] = 0x00; /* off period */
1168 		packet->data[12] = 0xFF; /* repeat count */
1169 		packet->len = 13;
1170 		packet->pending = true;
1171 		break;
1172 
1173 	default:
1174 		dev_dbg(&xpad->dev->dev,
1175 			"%s - rumble command sent to unsupported xpad type: %d\n",
1176 			__func__, xpad->xtype);
1177 		retval = -EINVAL;
1178 		goto out;
1179 	}
1180 
1181 	retval = xpad_try_sending_next_out_packet(xpad);
1182 
1183 out:
1184 	spin_unlock_irqrestore(&xpad->odata_lock, flags);
1185 	return retval;
1186 }
1187 
1188 static int xpad_init_ff(struct usb_xpad *xpad)
1189 {
1190 	if (xpad->xtype == XTYPE_UNKNOWN)
1191 		return 0;
1192 
1193 	input_set_capability(xpad->dev, EV_FF, FF_RUMBLE);
1194 
1195 	return input_ff_create_memless(xpad->dev, NULL, xpad_play_effect);
1196 }
1197 
1198 #else
1199 static int xpad_init_ff(struct usb_xpad *xpad) { return 0; }
1200 #endif
1201 
1202 #if defined(CONFIG_JOYSTICK_XPAD_LEDS)
1203 #include <linux/leds.h>
1204 #include <linux/idr.h>
1205 
1206 static DEFINE_IDA(xpad_pad_seq);
1207 
1208 struct xpad_led {
1209 	char name[16];
1210 	struct led_classdev led_cdev;
1211 	struct usb_xpad *xpad;
1212 };
1213 
1214 /**
1215  * set the LEDs on Xbox360 / Wireless Controllers
1216  * @param command
1217  *  0: off
1218  *  1: all blink, then previous setting
1219  *  2: 1/top-left blink, then on
1220  *  3: 2/top-right blink, then on
1221  *  4: 3/bottom-left blink, then on
1222  *  5: 4/bottom-right blink, then on
1223  *  6: 1/top-left on
1224  *  7: 2/top-right on
1225  *  8: 3/bottom-left on
1226  *  9: 4/bottom-right on
1227  * 10: rotate
1228  * 11: blink, based on previous setting
1229  * 12: slow blink, based on previous setting
1230  * 13: rotate with two lights
1231  * 14: persistent slow all blink
1232  * 15: blink once, then previous setting
1233  */
1234 static void xpad_send_led_command(struct usb_xpad *xpad, int command)
1235 {
1236 	struct xpad_output_packet *packet =
1237 			&xpad->out_packets[XPAD_OUT_LED_IDX];
1238 	unsigned long flags;
1239 
1240 	command %= 16;
1241 
1242 	spin_lock_irqsave(&xpad->odata_lock, flags);
1243 
1244 	switch (xpad->xtype) {
1245 	case XTYPE_XBOX360:
1246 		packet->data[0] = 0x01;
1247 		packet->data[1] = 0x03;
1248 		packet->data[2] = command;
1249 		packet->len = 3;
1250 		packet->pending = true;
1251 		break;
1252 
1253 	case XTYPE_XBOX360W:
1254 		packet->data[0] = 0x00;
1255 		packet->data[1] = 0x00;
1256 		packet->data[2] = 0x08;
1257 		packet->data[3] = 0x40 + command;
1258 		packet->data[4] = 0x00;
1259 		packet->data[5] = 0x00;
1260 		packet->data[6] = 0x00;
1261 		packet->data[7] = 0x00;
1262 		packet->data[8] = 0x00;
1263 		packet->data[9] = 0x00;
1264 		packet->data[10] = 0x00;
1265 		packet->data[11] = 0x00;
1266 		packet->len = 12;
1267 		packet->pending = true;
1268 		break;
1269 	}
1270 
1271 	xpad_try_sending_next_out_packet(xpad);
1272 
1273 	spin_unlock_irqrestore(&xpad->odata_lock, flags);
1274 }
1275 
1276 /*
1277  * Light up the segment corresponding to the pad number on
1278  * Xbox 360 Controllers.
1279  */
1280 static void xpad_identify_controller(struct usb_xpad *xpad)
1281 {
1282 	led_set_brightness(&xpad->led->led_cdev, (xpad->pad_nr % 4) + 2);
1283 }
1284 
1285 static void xpad_led_set(struct led_classdev *led_cdev,
1286 			 enum led_brightness value)
1287 {
1288 	struct xpad_led *xpad_led = container_of(led_cdev,
1289 						 struct xpad_led, led_cdev);
1290 
1291 	xpad_send_led_command(xpad_led->xpad, value);
1292 }
1293 
1294 static int xpad_led_probe(struct usb_xpad *xpad)
1295 {
1296 	struct xpad_led *led;
1297 	struct led_classdev *led_cdev;
1298 	int error;
1299 
1300 	if (xpad->xtype != XTYPE_XBOX360 && xpad->xtype != XTYPE_XBOX360W)
1301 		return 0;
1302 
1303 	xpad->led = led = kzalloc(sizeof(struct xpad_led), GFP_KERNEL);
1304 	if (!led)
1305 		return -ENOMEM;
1306 
1307 	xpad->pad_nr = ida_simple_get(&xpad_pad_seq, 0, 0, GFP_KERNEL);
1308 	if (xpad->pad_nr < 0) {
1309 		error = xpad->pad_nr;
1310 		goto err_free_mem;
1311 	}
1312 
1313 	snprintf(led->name, sizeof(led->name), "xpad%d", xpad->pad_nr);
1314 	led->xpad = xpad;
1315 
1316 	led_cdev = &led->led_cdev;
1317 	led_cdev->name = led->name;
1318 	led_cdev->brightness_set = xpad_led_set;
1319 	led_cdev->flags = LED_CORE_SUSPENDRESUME;
1320 
1321 	error = led_classdev_register(&xpad->udev->dev, led_cdev);
1322 	if (error)
1323 		goto err_free_id;
1324 
1325 	xpad_identify_controller(xpad);
1326 
1327 	return 0;
1328 
1329 err_free_id:
1330 	ida_simple_remove(&xpad_pad_seq, xpad->pad_nr);
1331 err_free_mem:
1332 	kfree(led);
1333 	xpad->led = NULL;
1334 	return error;
1335 }
1336 
1337 static void xpad_led_disconnect(struct usb_xpad *xpad)
1338 {
1339 	struct xpad_led *xpad_led = xpad->led;
1340 
1341 	if (xpad_led) {
1342 		led_classdev_unregister(&xpad_led->led_cdev);
1343 		ida_simple_remove(&xpad_pad_seq, xpad->pad_nr);
1344 		kfree(xpad_led);
1345 	}
1346 }
1347 #else
1348 static int xpad_led_probe(struct usb_xpad *xpad) { return 0; }
1349 static void xpad_led_disconnect(struct usb_xpad *xpad) { }
1350 #endif
1351 
1352 static int xpad_start_input(struct usb_xpad *xpad)
1353 {
1354 	int error;
1355 
1356 	if (usb_submit_urb(xpad->irq_in, GFP_KERNEL))
1357 		return -EIO;
1358 
1359 	if (xpad->xtype == XTYPE_XBOXONE) {
1360 		error = xpad_start_xbox_one(xpad);
1361 		if (error) {
1362 			usb_kill_urb(xpad->irq_in);
1363 			return error;
1364 		}
1365 	}
1366 
1367 	return 0;
1368 }
1369 
1370 static void xpad_stop_input(struct usb_xpad *xpad)
1371 {
1372 	usb_kill_urb(xpad->irq_in);
1373 }
1374 
1375 static void xpad360w_poweroff_controller(struct usb_xpad *xpad)
1376 {
1377 	unsigned long flags;
1378 	struct xpad_output_packet *packet =
1379 			&xpad->out_packets[XPAD_OUT_CMD_IDX];
1380 
1381 	spin_lock_irqsave(&xpad->odata_lock, flags);
1382 
1383 	packet->data[0] = 0x00;
1384 	packet->data[1] = 0x00;
1385 	packet->data[2] = 0x08;
1386 	packet->data[3] = 0xC0;
1387 	packet->data[4] = 0x00;
1388 	packet->data[5] = 0x00;
1389 	packet->data[6] = 0x00;
1390 	packet->data[7] = 0x00;
1391 	packet->data[8] = 0x00;
1392 	packet->data[9] = 0x00;
1393 	packet->data[10] = 0x00;
1394 	packet->data[11] = 0x00;
1395 	packet->len = 12;
1396 	packet->pending = true;
1397 
1398 	/* Reset the sequence so we send out poweroff now */
1399 	xpad->last_out_packet = -1;
1400 	xpad_try_sending_next_out_packet(xpad);
1401 
1402 	spin_unlock_irqrestore(&xpad->odata_lock, flags);
1403 }
1404 
1405 static int xpad360w_start_input(struct usb_xpad *xpad)
1406 {
1407 	int error;
1408 
1409 	error = usb_submit_urb(xpad->irq_in, GFP_KERNEL);
1410 	if (error)
1411 		return -EIO;
1412 
1413 	/*
1414 	 * Send presence packet.
1415 	 * This will force the controller to resend connection packets.
1416 	 * This is useful in the case we activate the module after the
1417 	 * adapter has been plugged in, as it won't automatically
1418 	 * send us info about the controllers.
1419 	 */
1420 	error = xpad_inquiry_pad_presence(xpad);
1421 	if (error) {
1422 		usb_kill_urb(xpad->irq_in);
1423 		return error;
1424 	}
1425 
1426 	return 0;
1427 }
1428 
1429 static void xpad360w_stop_input(struct usb_xpad *xpad)
1430 {
1431 	usb_kill_urb(xpad->irq_in);
1432 
1433 	/* Make sure we are done with presence work if it was scheduled */
1434 	flush_work(&xpad->work);
1435 }
1436 
1437 static int xpad_open(struct input_dev *dev)
1438 {
1439 	struct usb_xpad *xpad = input_get_drvdata(dev);
1440 
1441 	return xpad_start_input(xpad);
1442 }
1443 
1444 static void xpad_close(struct input_dev *dev)
1445 {
1446 	struct usb_xpad *xpad = input_get_drvdata(dev);
1447 
1448 	xpad_stop_input(xpad);
1449 }
1450 
1451 static void xpad_set_up_abs(struct input_dev *input_dev, signed short abs)
1452 {
1453 	struct usb_xpad *xpad = input_get_drvdata(input_dev);
1454 	set_bit(abs, input_dev->absbit);
1455 
1456 	switch (abs) {
1457 	case ABS_X:
1458 	case ABS_Y:
1459 	case ABS_RX:
1460 	case ABS_RY:	/* the two sticks */
1461 		input_set_abs_params(input_dev, abs, -32768, 32767, 16, 128);
1462 		break;
1463 	case ABS_Z:
1464 	case ABS_RZ:	/* the triggers (if mapped to axes) */
1465 		if (xpad->xtype == XTYPE_XBOXONE)
1466 			input_set_abs_params(input_dev, abs, 0, 1023, 0, 0);
1467 		else
1468 			input_set_abs_params(input_dev, abs, 0, 255, 0, 0);
1469 		break;
1470 	case ABS_HAT0X:
1471 	case ABS_HAT0Y:	/* the d-pad (only if dpad is mapped to axes */
1472 		input_set_abs_params(input_dev, abs, -1, 1, 0, 0);
1473 		break;
1474 	}
1475 }
1476 
1477 static void xpad_deinit_input(struct usb_xpad *xpad)
1478 {
1479 	if (xpad->input_created) {
1480 		xpad->input_created = false;
1481 		xpad_led_disconnect(xpad);
1482 		input_unregister_device(xpad->dev);
1483 	}
1484 }
1485 
1486 static int xpad_init_input(struct usb_xpad *xpad)
1487 {
1488 	struct input_dev *input_dev;
1489 	int i, error;
1490 
1491 	input_dev = input_allocate_device();
1492 	if (!input_dev)
1493 		return -ENOMEM;
1494 
1495 	xpad->dev = input_dev;
1496 	input_dev->name = xpad->name;
1497 	input_dev->phys = xpad->phys;
1498 	usb_to_input_id(xpad->udev, &input_dev->id);
1499 
1500 	if (xpad->xtype == XTYPE_XBOX360W) {
1501 		/* x360w controllers and the receiver have different ids */
1502 		input_dev->id.product = 0x02a1;
1503 	}
1504 
1505 	input_dev->dev.parent = &xpad->intf->dev;
1506 
1507 	input_set_drvdata(input_dev, xpad);
1508 
1509 	if (xpad->xtype != XTYPE_XBOX360W) {
1510 		input_dev->open = xpad_open;
1511 		input_dev->close = xpad_close;
1512 	}
1513 
1514 	__set_bit(EV_KEY, input_dev->evbit);
1515 
1516 	if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
1517 		__set_bit(EV_ABS, input_dev->evbit);
1518 		/* set up axes */
1519 		for (i = 0; xpad_abs[i] >= 0; i++)
1520 			xpad_set_up_abs(input_dev, xpad_abs[i]);
1521 	}
1522 
1523 	/* set up standard buttons */
1524 	for (i = 0; xpad_common_btn[i] >= 0; i++)
1525 		__set_bit(xpad_common_btn[i], input_dev->keybit);
1526 
1527 	/* set up model-specific ones */
1528 	if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype == XTYPE_XBOX360W ||
1529 	    xpad->xtype == XTYPE_XBOXONE) {
1530 		for (i = 0; xpad360_btn[i] >= 0; i++)
1531 			__set_bit(xpad360_btn[i], input_dev->keybit);
1532 	} else {
1533 		for (i = 0; xpad_btn[i] >= 0; i++)
1534 			__set_bit(xpad_btn[i], input_dev->keybit);
1535 	}
1536 
1537 	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
1538 		for (i = 0; xpad_btn_pad[i] >= 0; i++)
1539 			__set_bit(xpad_btn_pad[i], input_dev->keybit);
1540 	}
1541 
1542 	/*
1543 	 * This should be a simple else block. However historically
1544 	 * xbox360w has mapped DPAD to buttons while xbox360 did not. This
1545 	 * made no sense, but now we can not just switch back and have to
1546 	 * support both behaviors.
1547 	 */
1548 	if (!(xpad->mapping & MAP_DPAD_TO_BUTTONS) ||
1549 	    xpad->xtype == XTYPE_XBOX360W) {
1550 		for (i = 0; xpad_abs_pad[i] >= 0; i++)
1551 			xpad_set_up_abs(input_dev, xpad_abs_pad[i]);
1552 	}
1553 
1554 	if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
1555 		for (i = 0; xpad_btn_triggers[i] >= 0; i++)
1556 			__set_bit(xpad_btn_triggers[i], input_dev->keybit);
1557 	} else {
1558 		for (i = 0; xpad_abs_triggers[i] >= 0; i++)
1559 			xpad_set_up_abs(input_dev, xpad_abs_triggers[i]);
1560 	}
1561 
1562 	error = xpad_init_ff(xpad);
1563 	if (error)
1564 		goto err_free_input;
1565 
1566 	error = xpad_led_probe(xpad);
1567 	if (error)
1568 		goto err_destroy_ff;
1569 
1570 	error = input_register_device(xpad->dev);
1571 	if (error)
1572 		goto err_disconnect_led;
1573 
1574 	xpad->input_created = true;
1575 	return 0;
1576 
1577 err_disconnect_led:
1578 	xpad_led_disconnect(xpad);
1579 err_destroy_ff:
1580 	input_ff_destroy(input_dev);
1581 err_free_input:
1582 	input_free_device(input_dev);
1583 	return error;
1584 }
1585 
1586 static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id)
1587 {
1588 	struct usb_device *udev = interface_to_usbdev(intf);
1589 	struct usb_xpad *xpad;
1590 	struct usb_endpoint_descriptor *ep_irq_in, *ep_irq_out;
1591 	int i, error;
1592 
1593 	if (intf->cur_altsetting->desc.bNumEndpoints != 2)
1594 		return -ENODEV;
1595 
1596 	for (i = 0; xpad_device[i].idVendor; i++) {
1597 		if ((le16_to_cpu(udev->descriptor.idVendor) == xpad_device[i].idVendor) &&
1598 		    (le16_to_cpu(udev->descriptor.idProduct) == xpad_device[i].idProduct))
1599 			break;
1600 	}
1601 
1602 	xpad = kzalloc(sizeof(struct usb_xpad), GFP_KERNEL);
1603 	if (!xpad)
1604 		return -ENOMEM;
1605 
1606 	usb_make_path(udev, xpad->phys, sizeof(xpad->phys));
1607 	strlcat(xpad->phys, "/input0", sizeof(xpad->phys));
1608 
1609 	xpad->idata = usb_alloc_coherent(udev, XPAD_PKT_LEN,
1610 					 GFP_KERNEL, &xpad->idata_dma);
1611 	if (!xpad->idata) {
1612 		error = -ENOMEM;
1613 		goto err_free_mem;
1614 	}
1615 
1616 	xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL);
1617 	if (!xpad->irq_in) {
1618 		error = -ENOMEM;
1619 		goto err_free_idata;
1620 	}
1621 
1622 	xpad->udev = udev;
1623 	xpad->intf = intf;
1624 	xpad->mapping = xpad_device[i].mapping;
1625 	xpad->xtype = xpad_device[i].xtype;
1626 	xpad->name = xpad_device[i].name;
1627 	INIT_WORK(&xpad->work, xpad_presence_work);
1628 
1629 	if (xpad->xtype == XTYPE_UNKNOWN) {
1630 		if (intf->cur_altsetting->desc.bInterfaceClass == USB_CLASS_VENDOR_SPEC) {
1631 			if (intf->cur_altsetting->desc.bInterfaceProtocol == 129)
1632 				xpad->xtype = XTYPE_XBOX360W;
1633 			else if (intf->cur_altsetting->desc.bInterfaceProtocol == 208)
1634 				xpad->xtype = XTYPE_XBOXONE;
1635 			else
1636 				xpad->xtype = XTYPE_XBOX360;
1637 		} else {
1638 			xpad->xtype = XTYPE_XBOX;
1639 		}
1640 
1641 		if (dpad_to_buttons)
1642 			xpad->mapping |= MAP_DPAD_TO_BUTTONS;
1643 		if (triggers_to_buttons)
1644 			xpad->mapping |= MAP_TRIGGERS_TO_BUTTONS;
1645 		if (sticks_to_null)
1646 			xpad->mapping |= MAP_STICKS_TO_NULL;
1647 	}
1648 
1649 	if (xpad->xtype == XTYPE_XBOXONE &&
1650 	    intf->cur_altsetting->desc.bInterfaceNumber != 0) {
1651 		/*
1652 		 * The Xbox One controller lists three interfaces all with the
1653 		 * same interface class, subclass and protocol. Differentiate by
1654 		 * interface number.
1655 		 */
1656 		error = -ENODEV;
1657 		goto err_free_in_urb;
1658 	}
1659 
1660 	ep_irq_in = ep_irq_out = NULL;
1661 
1662 	for (i = 0; i < 2; i++) {
1663 		struct usb_endpoint_descriptor *ep =
1664 				&intf->cur_altsetting->endpoint[i].desc;
1665 
1666 		if (usb_endpoint_dir_in(ep))
1667 			ep_irq_in = ep;
1668 		else
1669 			ep_irq_out = ep;
1670 	}
1671 
1672 	if (!ep_irq_in || !ep_irq_out) {
1673 		error = -ENODEV;
1674 		goto err_free_in_urb;
1675 	}
1676 
1677 	error = xpad_init_output(intf, xpad, ep_irq_out);
1678 	if (error)
1679 		goto err_free_in_urb;
1680 
1681 	usb_fill_int_urb(xpad->irq_in, udev,
1682 			 usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress),
1683 			 xpad->idata, XPAD_PKT_LEN, xpad_irq_in,
1684 			 xpad, ep_irq_in->bInterval);
1685 	xpad->irq_in->transfer_dma = xpad->idata_dma;
1686 	xpad->irq_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1687 
1688 	usb_set_intfdata(intf, xpad);
1689 
1690 	if (xpad->xtype == XTYPE_XBOX360W) {
1691 		/*
1692 		 * Submit the int URB immediately rather than waiting for open
1693 		 * because we get status messages from the device whether
1694 		 * or not any controllers are attached.  In fact, it's
1695 		 * exactly the message that a controller has arrived that
1696 		 * we're waiting for.
1697 		 */
1698 		error = xpad360w_start_input(xpad);
1699 		if (error)
1700 			goto err_deinit_output;
1701 		/*
1702 		 * Wireless controllers require RESET_RESUME to work properly
1703 		 * after suspend. Ideally this quirk should be in usb core
1704 		 * quirk list, but we have too many vendors producing these
1705 		 * controllers and we'd need to maintain 2 identical lists
1706 		 * here in this driver and in usb core.
1707 		 */
1708 		udev->quirks |= USB_QUIRK_RESET_RESUME;
1709 	} else {
1710 		error = xpad_init_input(xpad);
1711 		if (error)
1712 			goto err_deinit_output;
1713 	}
1714 	return 0;
1715 
1716 err_deinit_output:
1717 	xpad_deinit_output(xpad);
1718 err_free_in_urb:
1719 	usb_free_urb(xpad->irq_in);
1720 err_free_idata:
1721 	usb_free_coherent(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
1722 err_free_mem:
1723 	kfree(xpad);
1724 	return error;
1725 }
1726 
1727 static void xpad_disconnect(struct usb_interface *intf)
1728 {
1729 	struct usb_xpad *xpad = usb_get_intfdata(intf);
1730 
1731 	if (xpad->xtype == XTYPE_XBOX360W)
1732 		xpad360w_stop_input(xpad);
1733 
1734 	xpad_deinit_input(xpad);
1735 
1736 	/*
1737 	 * Now that both input device and LED device are gone we can
1738 	 * stop output URB.
1739 	 */
1740 	xpad_stop_output(xpad);
1741 
1742 	xpad_deinit_output(xpad);
1743 
1744 	usb_free_urb(xpad->irq_in);
1745 	usb_free_coherent(xpad->udev, XPAD_PKT_LEN,
1746 			xpad->idata, xpad->idata_dma);
1747 
1748 	kfree(xpad);
1749 
1750 	usb_set_intfdata(intf, NULL);
1751 }
1752 
1753 static int xpad_suspend(struct usb_interface *intf, pm_message_t message)
1754 {
1755 	struct usb_xpad *xpad = usb_get_intfdata(intf);
1756 	struct input_dev *input = xpad->dev;
1757 
1758 	if (xpad->xtype == XTYPE_XBOX360W) {
1759 		/*
1760 		 * Wireless controllers always listen to input so
1761 		 * they are notified when controller shows up
1762 		 * or goes away.
1763 		 */
1764 		xpad360w_stop_input(xpad);
1765 
1766 		/*
1767 		 * The wireless adapter is going off now, so the
1768 		 * gamepads are going to become disconnected.
1769 		 * Unless explicitly disabled, power them down
1770 		 * so they don't just sit there flashing.
1771 		 */
1772 		if (auto_poweroff && xpad->pad_present)
1773 			xpad360w_poweroff_controller(xpad);
1774 	} else {
1775 		mutex_lock(&input->mutex);
1776 		if (input->users)
1777 			xpad_stop_input(xpad);
1778 		mutex_unlock(&input->mutex);
1779 	}
1780 
1781 	xpad_stop_output(xpad);
1782 
1783 	return 0;
1784 }
1785 
1786 static int xpad_resume(struct usb_interface *intf)
1787 {
1788 	struct usb_xpad *xpad = usb_get_intfdata(intf);
1789 	struct input_dev *input = xpad->dev;
1790 	int retval = 0;
1791 
1792 	if (xpad->xtype == XTYPE_XBOX360W) {
1793 		retval = xpad360w_start_input(xpad);
1794 	} else {
1795 		mutex_lock(&input->mutex);
1796 		if (input->users) {
1797 			retval = xpad_start_input(xpad);
1798 		} else if (xpad->xtype == XTYPE_XBOXONE) {
1799 			/*
1800 			 * Even if there are no users, we'll send Xbox One pads
1801 			 * the startup sequence so they don't sit there and
1802 			 * blink until somebody opens the input device again.
1803 			 */
1804 			retval = xpad_start_xbox_one(xpad);
1805 		}
1806 		mutex_unlock(&input->mutex);
1807 	}
1808 
1809 	return retval;
1810 }
1811 
1812 static struct usb_driver xpad_driver = {
1813 	.name		= "xpad",
1814 	.probe		= xpad_probe,
1815 	.disconnect	= xpad_disconnect,
1816 	.suspend	= xpad_suspend,
1817 	.resume		= xpad_resume,
1818 	.reset_resume	= xpad_resume,
1819 	.id_table	= xpad_table,
1820 };
1821 
1822 module_usb_driver(xpad_driver);
1823 
1824 MODULE_AUTHOR(DRIVER_AUTHOR);
1825 MODULE_DESCRIPTION(DRIVER_DESC);
1826 MODULE_LICENSE("GPL");
1827