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Linux/drivers/input/joystick/xpad.c

  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 32
 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 const struct xpad_device {
119         u16 idVendor;
120         u16 idProduct;
121         char *name;
122         u8 mapping;
123         u8 xtype;
124 } xpad_device[] = {
125         { 0x045e, 0x0202, "Microsoft X-Box pad v1 (US)", 0, XTYPE_XBOX },
126         { 0x045e, 0x0285, "Microsoft X-Box pad (Japan)", 0, XTYPE_XBOX },
127         { 0x045e, 0x0287, "Microsoft Xbox Controller S", 0, XTYPE_XBOX },
128         { 0x045e, 0x0289, "Microsoft X-Box pad v2 (US)", 0, XTYPE_XBOX },
129         { 0x045e, 0x028e, "Microsoft X-Box 360 pad", 0, XTYPE_XBOX360 },
130         { 0x045e, 0x02d1, "Microsoft X-Box One pad", 0, XTYPE_XBOXONE },
131         { 0x045e, 0x02dd, "Microsoft X-Box One pad (Firmware 2015)", 0, XTYPE_XBOXONE },
132         { 0x045e, 0x0291, "Xbox 360 Wireless Receiver (XBOX)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
133         { 0x045e, 0x0719, "Xbox 360 Wireless Receiver", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
134         { 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", 0, XTYPE_XBOX },
135         { 0x044f, 0xb326, "Thrustmaster Gamepad GP XID", 0, XTYPE_XBOX360 },
136         { 0x046d, 0xc21d, "Logitech Gamepad F310", 0, XTYPE_XBOX360 },
137         { 0x046d, 0xc21e, "Logitech Gamepad F510", 0, XTYPE_XBOX360 },
138         { 0x046d, 0xc21f, "Logitech Gamepad F710", 0, XTYPE_XBOX360 },
139         { 0x046d, 0xc242, "Logitech Chillstream Controller", 0, XTYPE_XBOX360 },
140         { 0x046d, 0xca84, "Logitech Xbox Cordless Controller", 0, XTYPE_XBOX },
141         { 0x046d, 0xca88, "Logitech Compact Controller for Xbox", 0, XTYPE_XBOX },
142         { 0x05fd, 0x1007, "Mad Catz Controller (unverified)", 0, XTYPE_XBOX },
143         { 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)", 0, XTYPE_XBOX },
144         { 0x0738, 0x4516, "Mad Catz Control Pad", 0, XTYPE_XBOX },
145         { 0x0738, 0x4522, "Mad Catz LumiCON", 0, XTYPE_XBOX },
146         { 0x0738, 0x4526, "Mad Catz Control Pad Pro", 0, XTYPE_XBOX },
147         { 0x0738, 0x4536, "Mad Catz MicroCON", 0, XTYPE_XBOX },
148         { 0x0738, 0x4540, "Mad Catz Beat Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
149         { 0x0738, 0x4556, "Mad Catz Lynx Wireless Controller", 0, XTYPE_XBOX },
150         { 0x0738, 0x4716, "Mad Catz Wired Xbox 360 Controller", 0, XTYPE_XBOX360 },
151         { 0x0738, 0x4718, "Mad Catz Street Fighter IV FightStick SE", 0, XTYPE_XBOX360 },
152         { 0x0738, 0x4726, "Mad Catz Xbox 360 Controller", 0, XTYPE_XBOX360 },
153         { 0x0738, 0x4728, "Mad Catz Street Fighter IV FightPad", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
154         { 0x0738, 0x4738, "Mad Catz Wired Xbox 360 Controller (SFIV)", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
155         { 0x0738, 0x4740, "Mad Catz Beat Pad", 0, XTYPE_XBOX360 },
156         { 0x0738, 0x4a01, "Mad Catz FightStick TE 2", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOXONE },
157         { 0x0738, 0x6040, "Mad Catz Beat Pad Pro", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
158         { 0x0738, 0xb726, "Mad Catz Xbox controller - MW2", 0, XTYPE_XBOX360 },
159         { 0x0738, 0xbeef, "Mad Catz JOYTECH NEO SE Advanced GamePad", XTYPE_XBOX360 },
160         { 0x0738, 0xcb02, "Saitek Cyborg Rumble Pad - PC/Xbox 360", 0, XTYPE_XBOX360 },
161         { 0x0738, 0xcb03, "Saitek P3200 Rumble Pad - PC/Xbox 360", 0, XTYPE_XBOX360 },
162         { 0x0738, 0xf738, "Super SFIV FightStick TE S", 0, XTYPE_XBOX360 },
163         { 0x0c12, 0x8802, "Zeroplus Xbox Controller", 0, XTYPE_XBOX },
164         { 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", DANCEPAD_MAP_CONFIG, XTYPE_XBOX },
165         { 0x0c12, 0x880a, "Pelican Eclipse PL-2023", 0, XTYPE_XBOX },
166         { 0x0c12, 0x8810, "Zeroplus Xbox Controller", 0, XTYPE_XBOX },
167         { 0x0c12, 0x9902, "HAMA VibraX - *FAULTY HARDWARE*", 0, XTYPE_XBOX },
168         { 0x0d2f, 0x0002, "Andamiro Pump It Up pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
169         { 0x0e4c, 0x1097, "Radica Gamester Controller", 0, XTYPE_XBOX },
170         { 0x0e4c, 0x2390, "Radica Games Jtech Controller", 0, XTYPE_XBOX },
171         { 0x0e6f, 0x0003, "Logic3 Freebird wireless Controller", 0, XTYPE_XBOX },
172         { 0x0e6f, 0x0005, "Eclipse wireless Controller", 0, XTYPE_XBOX },
173         { 0x0e6f, 0x0006, "Edge wireless Controller", 0, XTYPE_XBOX },
174         { 0x0e6f, 0x0105, "HSM3 Xbox360 dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
175         { 0x0e6f, 0x0113, "Afterglow AX.1 Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
176         { 0x0e6f, 0x0201, "Pelican PL-3601 'TSZ' Wired Xbox 360 Controller", 0, XTYPE_XBOX360 },
177         { 0x0e6f, 0x0213, "Afterglow Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
178         { 0x0e6f, 0x021f, "Rock Candy Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
179         { 0x0e6f, 0x0301, "Logic3 Controller", 0, XTYPE_XBOX360 },
180         { 0x0e6f, 0x0401, "Logic3 Controller", 0, XTYPE_XBOX360 },
181         { 0x0e8f, 0x0201, "SmartJoy Frag Xpad/PS2 adaptor", 0, XTYPE_XBOX },
182         { 0x0e8f, 0x3008, "Generic xbox control (dealextreme)", 0, XTYPE_XBOX },
183         { 0x0f0d, 0x000a, "Hori Co. DOA4 FightStick", 0, XTYPE_XBOX360 },
184         { 0x0f0d, 0x000d, "Hori Fighting Stick EX2", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
185         { 0x0f0d, 0x0016, "Hori Real Arcade Pro.EX", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
186         { 0x0f30, 0x0202, "Joytech Advanced Controller", 0, XTYPE_XBOX },
187         { 0x0f30, 0x8888, "BigBen XBMiniPad Controller", 0, XTYPE_XBOX },
188         { 0x102c, 0xff0c, "Joytech Wireless Advanced Controller", 0, XTYPE_XBOX },
189         { 0x12ab, 0x0004, "Honey Bee Xbox360 dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
190         { 0x12ab, 0x0301, "PDP AFTERGLOW AX.1", 0, XTYPE_XBOX360 },
191         { 0x12ab, 0x8809, "Xbox DDR dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
192         { 0x1430, 0x4748, "RedOctane Guitar Hero X-plorer", 0, XTYPE_XBOX360 },
193         { 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
194         { 0x146b, 0x0601, "BigBen Interactive XBOX 360 Controller", 0, XTYPE_XBOX360 },
195         { 0x1532, 0x0037, "Razer Sabertooth", 0, XTYPE_XBOX360 },
196         { 0x15e4, 0x3f00, "Power A Mini Pro Elite", 0, XTYPE_XBOX360 },
197         { 0x15e4, 0x3f0a, "Xbox Airflo wired controller", 0, XTYPE_XBOX360 },
198         { 0x15e4, 0x3f10, "Batarang Xbox 360 controller", 0, XTYPE_XBOX360 },
199         { 0x162e, 0xbeef, "Joytech Neo-Se Take2", 0, XTYPE_XBOX360 },
200         { 0x1689, 0xfd00, "Razer Onza Tournament Edition", 0, XTYPE_XBOX360 },
201         { 0x1689, 0xfd01, "Razer Onza Classic Edition", 0, XTYPE_XBOX360 },
202         { 0x24c6, 0x5d04, "Razer Sabertooth", 0, XTYPE_XBOX360 },
203         { 0x1bad, 0x0002, "Harmonix Rock Band Guitar", 0, XTYPE_XBOX360 },
204         { 0x1bad, 0x0003, "Harmonix Rock Band Drumkit", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
205         { 0x1bad, 0xf016, "Mad Catz Xbox 360 Controller", 0, XTYPE_XBOX360 },
206         { 0x1bad, 0xf023, "MLG Pro Circuit Controller (Xbox)", 0, XTYPE_XBOX360 },
207         { 0x1bad, 0xf028, "Street Fighter IV FightPad", 0, XTYPE_XBOX360 },
208         { 0x1bad, 0xf038, "Street Fighter IV FightStick TE", 0, XTYPE_XBOX360 },
209         { 0x1bad, 0xf900, "Harmonix Xbox 360 Controller", 0, XTYPE_XBOX360 },
210         { 0x1bad, 0xf901, "Gamestop Xbox 360 Controller", 0, XTYPE_XBOX360 },
211         { 0x1bad, 0xf903, "Tron Xbox 360 controller", 0, XTYPE_XBOX360 },
212         { 0x24c6, 0x5000, "Razer Atrox Arcade Stick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
213         { 0x24c6, 0x5300, "PowerA MINI PROEX Controller", 0, XTYPE_XBOX360 },
214         { 0x24c6, 0x5303, "Xbox Airflo wired controller", 0, XTYPE_XBOX360 },
215         { 0x24c6, 0x5500, "Hori XBOX 360 EX 2 with Turbo", 0, XTYPE_XBOX360 },
216         { 0x24c6, 0x5501, "Hori Real Arcade Pro VX-SA", 0, XTYPE_XBOX360 },
217         { 0x24c6, 0x5506, "Hori SOULCALIBUR V Stick", 0, XTYPE_XBOX360 },
218         { 0x24c6, 0x5b02, "Thrustmaster, Inc. GPX Controller", 0, XTYPE_XBOX360 },
219         { 0x24c6, 0x5b03, "Thrustmaster Ferrari 458 Racing Wheel", 0, XTYPE_XBOX360 },
220         { 0xffff, 0xffff, "Chinese-made Xbox Controller", 0, XTYPE_XBOX },
221         { 0x0000, 0x0000, "Generic X-Box pad", 0, XTYPE_UNKNOWN }
222 };
223 
224 /* buttons shared with xbox and xbox360 */
225 static const signed short xpad_common_btn[] = {
226         BTN_A, BTN_B, BTN_X, BTN_Y,                     /* "analog" buttons */
227         BTN_START, BTN_SELECT, BTN_THUMBL, BTN_THUMBR,  /* start/back/sticks */
228         -1                                              /* terminating entry */
229 };
230 
231 /* original xbox controllers only */
232 static const signed short xpad_btn[] = {
233         BTN_C, BTN_Z,           /* "analog" buttons */
234         -1                      /* terminating entry */
235 };
236 
237 /* used when dpad is mapped to buttons */
238 static const signed short xpad_btn_pad[] = {
239         BTN_TRIGGER_HAPPY1, BTN_TRIGGER_HAPPY2,         /* d-pad left, right */
240         BTN_TRIGGER_HAPPY3, BTN_TRIGGER_HAPPY4,         /* d-pad up, down */
241         -1                              /* terminating entry */
242 };
243 
244 /* used when triggers are mapped to buttons */
245 static const signed short xpad_btn_triggers[] = {
246         BTN_TL2, BTN_TR2,               /* triggers left/right */
247         -1
248 };
249 
250 static const signed short xpad360_btn[] = {  /* buttons for x360 controller */
251         BTN_TL, BTN_TR,         /* Button LB/RB */
252         BTN_MODE,               /* The big X button */
253         -1
254 };
255 
256 static const signed short xpad_abs[] = {
257         ABS_X, ABS_Y,           /* left stick */
258         ABS_RX, ABS_RY,         /* right stick */
259         -1                      /* terminating entry */
260 };
261 
262 /* used when dpad is mapped to axes */
263 static const signed short xpad_abs_pad[] = {
264         ABS_HAT0X, ABS_HAT0Y,   /* d-pad axes */
265         -1                      /* terminating entry */
266 };
267 
268 /* used when triggers are mapped to axes */
269 static const signed short xpad_abs_triggers[] = {
270         ABS_Z, ABS_RZ,          /* triggers left/right */
271         -1
272 };
273 
274 /*
275  * Xbox 360 has a vendor-specific class, so we cannot match it with only
276  * USB_INTERFACE_INFO (also specifically refused by USB subsystem), so we
277  * match against vendor id as well. Wired Xbox 360 devices have protocol 1,
278  * wireless controllers have protocol 129.
279  */
280 #define XPAD_XBOX360_VENDOR_PROTOCOL(vend,pr) \
281         .match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO, \
282         .idVendor = (vend), \
283         .bInterfaceClass = USB_CLASS_VENDOR_SPEC, \
284         .bInterfaceSubClass = 93, \
285         .bInterfaceProtocol = (pr)
286 #define XPAD_XBOX360_VENDOR(vend) \
287         { XPAD_XBOX360_VENDOR_PROTOCOL(vend,1) }, \
288         { XPAD_XBOX360_VENDOR_PROTOCOL(vend,129) }
289 
290 /* The Xbox One controller uses subclass 71 and protocol 208. */
291 #define XPAD_XBOXONE_VENDOR_PROTOCOL(vend, pr) \
292         .match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO, \
293         .idVendor = (vend), \
294         .bInterfaceClass = USB_CLASS_VENDOR_SPEC, \
295         .bInterfaceSubClass = 71, \
296         .bInterfaceProtocol = (pr)
297 #define XPAD_XBOXONE_VENDOR(vend) \
298         { XPAD_XBOXONE_VENDOR_PROTOCOL(vend, 208) }
299 
300 static struct usb_device_id xpad_table[] = {
301         { USB_INTERFACE_INFO('X', 'B', 0) },    /* X-Box USB-IF not approved class */
302         XPAD_XBOX360_VENDOR(0x044f),            /* Thrustmaster X-Box 360 controllers */
303         XPAD_XBOX360_VENDOR(0x045e),            /* Microsoft X-Box 360 controllers */
304         XPAD_XBOXONE_VENDOR(0x045e),            /* Microsoft X-Box One controllers */
305         XPAD_XBOX360_VENDOR(0x046d),            /* Logitech X-Box 360 style controllers */
306         XPAD_XBOX360_VENDOR(0x0738),            /* Mad Catz X-Box 360 controllers */
307         { USB_DEVICE(0x0738, 0x4540) },         /* Mad Catz Beat Pad */
308         XPAD_XBOXONE_VENDOR(0x0738),            /* Mad Catz FightStick TE 2 */
309         XPAD_XBOX360_VENDOR(0x0e6f),            /* 0x0e6f X-Box 360 controllers */
310         XPAD_XBOX360_VENDOR(0x12ab),            /* X-Box 360 dance pads */
311         XPAD_XBOX360_VENDOR(0x1430),            /* RedOctane X-Box 360 controllers */
312         XPAD_XBOX360_VENDOR(0x146b),            /* BigBen Interactive Controllers */
313         XPAD_XBOX360_VENDOR(0x1bad),            /* Harminix Rock Band Guitar and Drums */
314         XPAD_XBOX360_VENDOR(0x0f0d),            /* Hori Controllers */
315         XPAD_XBOX360_VENDOR(0x1689),            /* Razer Onza */
316         XPAD_XBOX360_VENDOR(0x24c6),            /* PowerA Controllers */
317         XPAD_XBOX360_VENDOR(0x1532),            /* Razer Sabertooth */
318         XPAD_XBOX360_VENDOR(0x15e4),            /* Numark X-Box 360 controllers */
319         XPAD_XBOX360_VENDOR(0x162e),            /* Joytech X-Box 360 controllers */
320         { }
321 };
322 
323 MODULE_DEVICE_TABLE(usb, xpad_table);
324 
325 struct xpad_output_packet {
326         u8 data[XPAD_PKT_LEN];
327         u8 len;
328         bool pending;
329 };
330 
331 #define XPAD_OUT_CMD_IDX        0
332 #define XPAD_OUT_FF_IDX         1
333 #define XPAD_OUT_LED_IDX        (1 + IS_ENABLED(CONFIG_JOYSTICK_XPAD_FF))
334 #define XPAD_NUM_OUT_PACKETS    (1 + \
335                                  IS_ENABLED(CONFIG_JOYSTICK_XPAD_FF) + \
336                                  IS_ENABLED(CONFIG_JOYSTICK_XPAD_LEDS))
337 
338 struct usb_xpad {
339         struct input_dev *dev;          /* input device interface */
340         struct input_dev __rcu *x360w_dev;
341         struct usb_device *udev;        /* usb device */
342         struct usb_interface *intf;     /* usb interface */
343 
344         bool pad_present;
345         bool input_created;
346 
347         struct urb *irq_in;             /* urb for interrupt in report */
348         unsigned char *idata;           /* input data */
349         dma_addr_t idata_dma;
350 
351         struct urb *irq_out;            /* urb for interrupt out report */
352         struct usb_anchor irq_out_anchor;
353         bool irq_out_active;            /* we must not use an active URB */
354         u8 odata_serial;                /* serial number for xbox one protocol */
355         unsigned char *odata;           /* output data */
356         dma_addr_t odata_dma;
357         spinlock_t odata_lock;
358 
359         struct xpad_output_packet out_packets[XPAD_NUM_OUT_PACKETS];
360         int last_out_packet;
361 
362 #if defined(CONFIG_JOYSTICK_XPAD_LEDS)
363         struct xpad_led *led;
364 #endif
365 
366         char phys[64];                  /* physical device path */
367 
368         int mapping;                    /* map d-pad to buttons or to axes */
369         int xtype;                      /* type of xbox device */
370         int pad_nr;                     /* the order x360 pads were attached */
371         const char *name;               /* name of the device */
372         struct work_struct work;        /* init/remove device from callback */
373 };
374 
375 static int xpad_init_input(struct usb_xpad *xpad);
376 static void xpad_deinit_input(struct usb_xpad *xpad);
377 
378 /*
379  *      xpad_process_packet
380  *
381  *      Completes a request by converting the data into events for the
382  *      input subsystem.
383  *
384  *      The used report descriptor was taken from ITO Takayukis website:
385  *       http://euc.jp/periphs/xbox-controller.ja.html
386  */
387 static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
388 {
389         struct input_dev *dev = xpad->dev;
390 
391         if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
392                 /* left stick */
393                 input_report_abs(dev, ABS_X,
394                                  (__s16) le16_to_cpup((__le16 *)(data + 12)));
395                 input_report_abs(dev, ABS_Y,
396                                  ~(__s16) le16_to_cpup((__le16 *)(data + 14)));
397 
398                 /* right stick */
399                 input_report_abs(dev, ABS_RX,
400                                  (__s16) le16_to_cpup((__le16 *)(data + 16)));
401                 input_report_abs(dev, ABS_RY,
402                                  ~(__s16) le16_to_cpup((__le16 *)(data + 18)));
403         }
404 
405         /* triggers left/right */
406         if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
407                 input_report_key(dev, BTN_TL2, data[10]);
408                 input_report_key(dev, BTN_TR2, data[11]);
409         } else {
410                 input_report_abs(dev, ABS_Z, data[10]);
411                 input_report_abs(dev, ABS_RZ, data[11]);
412         }
413 
414         /* digital pad */
415         if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
416                 /* dpad as buttons (left, right, up, down) */
417                 input_report_key(dev, BTN_TRIGGER_HAPPY1, data[2] & 0x04);
418                 input_report_key(dev, BTN_TRIGGER_HAPPY2, data[2] & 0x08);
419                 input_report_key(dev, BTN_TRIGGER_HAPPY3, data[2] & 0x01);
420                 input_report_key(dev, BTN_TRIGGER_HAPPY4, data[2] & 0x02);
421         } else {
422                 input_report_abs(dev, ABS_HAT0X,
423                                  !!(data[2] & 0x08) - !!(data[2] & 0x04));
424                 input_report_abs(dev, ABS_HAT0Y,
425                                  !!(data[2] & 0x02) - !!(data[2] & 0x01));
426         }
427 
428         /* start/back buttons and stick press left/right */
429         input_report_key(dev, BTN_START,  data[2] & 0x10);
430         input_report_key(dev, BTN_SELECT, data[2] & 0x20);
431         input_report_key(dev, BTN_THUMBL, data[2] & 0x40);
432         input_report_key(dev, BTN_THUMBR, data[2] & 0x80);
433 
434         /* "analog" buttons A, B, X, Y */
435         input_report_key(dev, BTN_A, data[4]);
436         input_report_key(dev, BTN_B, data[5]);
437         input_report_key(dev, BTN_X, data[6]);
438         input_report_key(dev, BTN_Y, data[7]);
439 
440         /* "analog" buttons black, white */
441         input_report_key(dev, BTN_C, data[8]);
442         input_report_key(dev, BTN_Z, data[9]);
443 
444         input_sync(dev);
445 }
446 
447 /*
448  *      xpad360_process_packet
449  *
450  *      Completes a request by converting the data into events for the
451  *      input subsystem. It is version for xbox 360 controller
452  *
453  *      The used report descriptor was taken from:
454  *              http://www.free60.org/wiki/Gamepad
455  */
456 
457 static void xpad360_process_packet(struct usb_xpad *xpad, struct input_dev *dev,
458                                    u16 cmd, unsigned char *data)
459 {
460         /* digital pad */
461         if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
462                 /* dpad as buttons (left, right, up, down) */
463                 input_report_key(dev, BTN_TRIGGER_HAPPY1, data[2] & 0x04);
464                 input_report_key(dev, BTN_TRIGGER_HAPPY2, data[2] & 0x08);
465                 input_report_key(dev, BTN_TRIGGER_HAPPY3, data[2] & 0x01);
466                 input_report_key(dev, BTN_TRIGGER_HAPPY4, data[2] & 0x02);
467         }
468 
469         /*
470          * This should be a simple else block. However historically
471          * xbox360w has mapped DPAD to buttons while xbox360 did not. This
472          * made no sense, but now we can not just switch back and have to
473          * support both behaviors.
474          */
475         if (!(xpad->mapping & MAP_DPAD_TO_BUTTONS) ||
476             xpad->xtype == XTYPE_XBOX360W) {
477                 input_report_abs(dev, ABS_HAT0X,
478                                  !!(data[2] & 0x08) - !!(data[2] & 0x04));
479                 input_report_abs(dev, ABS_HAT0Y,
480                                  !!(data[2] & 0x02) - !!(data[2] & 0x01));
481         }
482 
483         /* start/back buttons */
484         input_report_key(dev, BTN_START,  data[2] & 0x10);
485         input_report_key(dev, BTN_SELECT, data[2] & 0x20);
486 
487         /* stick press left/right */
488         input_report_key(dev, BTN_THUMBL, data[2] & 0x40);
489         input_report_key(dev, BTN_THUMBR, data[2] & 0x80);
490 
491         /* buttons A,B,X,Y,TL,TR and MODE */
492         input_report_key(dev, BTN_A,    data[3] & 0x10);
493         input_report_key(dev, BTN_B,    data[3] & 0x20);
494         input_report_key(dev, BTN_X,    data[3] & 0x40);
495         input_report_key(dev, BTN_Y,    data[3] & 0x80);
496         input_report_key(dev, BTN_TL,   data[3] & 0x01);
497         input_report_key(dev, BTN_TR,   data[3] & 0x02);
498         input_report_key(dev, BTN_MODE, data[3] & 0x04);
499 
500         if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
501                 /* left stick */
502                 input_report_abs(dev, ABS_X,
503                                  (__s16) le16_to_cpup((__le16 *)(data + 6)));
504                 input_report_abs(dev, ABS_Y,
505                                  ~(__s16) le16_to_cpup((__le16 *)(data + 8)));
506 
507                 /* right stick */
508                 input_report_abs(dev, ABS_RX,
509                                  (__s16) le16_to_cpup((__le16 *)(data + 10)));
510                 input_report_abs(dev, ABS_RY,
511                                  ~(__s16) le16_to_cpup((__le16 *)(data + 12)));
512         }
513 
514         /* triggers left/right */
515         if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
516                 input_report_key(dev, BTN_TL2, data[4]);
517                 input_report_key(dev, BTN_TR2, data[5]);
518         } else {
519                 input_report_abs(dev, ABS_Z, data[4]);
520                 input_report_abs(dev, ABS_RZ, data[5]);
521         }
522 
523         input_sync(dev);
524 }
525 
526 static void xpad_presence_work(struct work_struct *work)
527 {
528         struct usb_xpad *xpad = container_of(work, struct usb_xpad, work);
529         int error;
530 
531         if (xpad->pad_present) {
532                 error = xpad_init_input(xpad);
533                 if (error) {
534                         /* complain only, not much else we can do here */
535                         dev_err(&xpad->dev->dev,
536                                 "unable to init device: %d\n", error);
537                 } else {
538                         rcu_assign_pointer(xpad->x360w_dev, xpad->dev);
539                 }
540         } else {
541                 RCU_INIT_POINTER(xpad->x360w_dev, NULL);
542                 synchronize_rcu();
543                 /*
544                  * Now that we are sure xpad360w_process_packet is not
545                  * using input device we can get rid of it.
546                  */
547                 xpad_deinit_input(xpad);
548         }
549 }
550 
551 /*
552  * xpad360w_process_packet
553  *
554  * Completes a request by converting the data into events for the
555  * input subsystem. It is version for xbox 360 wireless controller.
556  *
557  * Byte.Bit
558  * 00.1 - Status change: The controller or headset has connected/disconnected
559  *                       Bits 01.7 and 01.6 are valid
560  * 01.7 - Controller present
561  * 01.6 - Headset present
562  * 01.1 - Pad state (Bytes 4+) valid
563  *
564  */
565 static void xpad360w_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
566 {
567         struct input_dev *dev;
568         bool present;
569 
570         /* Presence change */
571         if (data[0] & 0x08) {
572                 present = (data[1] & 0x80) != 0;
573 
574                 if (xpad->pad_present != present) {
575                         xpad->pad_present = present;
576                         schedule_work(&xpad->work);
577                 }
578         }
579 
580         /* Valid pad data */
581         if (data[1] != 0x1)
582                 return;
583 
584         rcu_read_lock();
585         dev = rcu_dereference(xpad->x360w_dev);
586         if (dev)
587                 xpad360_process_packet(xpad, dev, cmd, &data[4]);
588         rcu_read_unlock();
589 }
590 
591 /*
592  *      xpadone_process_buttons
593  *
594  *      Process a button update packet from an Xbox one controller.
595  */
596 static void xpadone_process_buttons(struct usb_xpad *xpad,
597                                 struct input_dev *dev,
598                                 unsigned char *data)
599 {
600         /* menu/view buttons */
601         input_report_key(dev, BTN_START,  data[4] & 0x04);
602         input_report_key(dev, BTN_SELECT, data[4] & 0x08);
603 
604         /* buttons A,B,X,Y */
605         input_report_key(dev, BTN_A,    data[4] & 0x10);
606         input_report_key(dev, BTN_B,    data[4] & 0x20);
607         input_report_key(dev, BTN_X,    data[4] & 0x40);
608         input_report_key(dev, BTN_Y,    data[4] & 0x80);
609 
610         /* digital pad */
611         if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
612                 /* dpad as buttons (left, right, up, down) */
613                 input_report_key(dev, BTN_TRIGGER_HAPPY1, data[5] & 0x04);
614                 input_report_key(dev, BTN_TRIGGER_HAPPY2, data[5] & 0x08);
615                 input_report_key(dev, BTN_TRIGGER_HAPPY3, data[5] & 0x01);
616                 input_report_key(dev, BTN_TRIGGER_HAPPY4, data[5] & 0x02);
617         } else {
618                 input_report_abs(dev, ABS_HAT0X,
619                                  !!(data[5] & 0x08) - !!(data[5] & 0x04));
620                 input_report_abs(dev, ABS_HAT0Y,
621                                  !!(data[5] & 0x02) - !!(data[5] & 0x01));
622         }
623 
624         /* TL/TR */
625         input_report_key(dev, BTN_TL,   data[5] & 0x10);
626         input_report_key(dev, BTN_TR,   data[5] & 0x20);
627 
628         /* stick press left/right */
629         input_report_key(dev, BTN_THUMBL, data[5] & 0x40);
630         input_report_key(dev, BTN_THUMBR, data[5] & 0x80);
631 
632         if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
633                 /* left stick */
634                 input_report_abs(dev, ABS_X,
635                                  (__s16) le16_to_cpup((__le16 *)(data + 10)));
636                 input_report_abs(dev, ABS_Y,
637                                  ~(__s16) le16_to_cpup((__le16 *)(data + 12)));
638 
639                 /* right stick */
640                 input_report_abs(dev, ABS_RX,
641                                  (__s16) le16_to_cpup((__le16 *)(data + 14)));
642                 input_report_abs(dev, ABS_RY,
643                                  ~(__s16) le16_to_cpup((__le16 *)(data + 16)));
644         }
645 
646         /* triggers left/right */
647         if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
648                 input_report_key(dev, BTN_TL2,
649                                  (__u16) le16_to_cpup((__le16 *)(data + 6)));
650                 input_report_key(dev, BTN_TR2,
651                                  (__u16) le16_to_cpup((__le16 *)(data + 8)));
652         } else {
653                 input_report_abs(dev, ABS_Z,
654                                  (__u16) le16_to_cpup((__le16 *)(data + 6)));
655                 input_report_abs(dev, ABS_RZ,
656                                  (__u16) le16_to_cpup((__le16 *)(data + 8)));
657         }
658 
659         input_sync(dev);
660 }
661 
662 /*
663  *      xpadone_process_packet
664  *
665  *      Completes a request by converting the data into events for the
666  *      input subsystem. This version is for the Xbox One controller.
667  *
668  *      The report format was gleaned from
669  *      https://github.com/kylelemons/xbox/blob/master/xbox.go
670  */
671 
672 static void xpadone_process_packet(struct usb_xpad *xpad,
673                                 u16 cmd, unsigned char *data)
674 {
675         struct input_dev *dev = xpad->dev;
676 
677         switch (data[0]) {
678         case 0x20:
679                 xpadone_process_buttons(xpad, dev, data);
680                 break;
681 
682         case 0x07:
683                 /* the xbox button has its own special report */
684                 input_report_key(dev, BTN_MODE, data[4] & 0x01);
685                 input_sync(dev);
686                 break;
687         }
688 }
689 
690 static void xpad_irq_in(struct urb *urb)
691 {
692         struct usb_xpad *xpad = urb->context;
693         struct device *dev = &xpad->intf->dev;
694         int retval, status;
695 
696         status = urb->status;
697 
698         switch (status) {
699         case 0:
700                 /* success */
701                 break;
702         case -ECONNRESET:
703         case -ENOENT:
704         case -ESHUTDOWN:
705                 /* this urb is terminated, clean up */
706                 dev_dbg(dev, "%s - urb shutting down with status: %d\n",
707                         __func__, status);
708                 return;
709         default:
710                 dev_dbg(dev, "%s - nonzero urb status received: %d\n",
711                         __func__, status);
712                 goto exit;
713         }
714 
715         switch (xpad->xtype) {
716         case XTYPE_XBOX360:
717                 xpad360_process_packet(xpad, xpad->dev, 0, xpad->idata);
718                 break;
719         case XTYPE_XBOX360W:
720                 xpad360w_process_packet(xpad, 0, xpad->idata);
721                 break;
722         case XTYPE_XBOXONE:
723                 xpadone_process_packet(xpad, 0, xpad->idata);
724                 break;
725         default:
726                 xpad_process_packet(xpad, 0, xpad->idata);
727         }
728 
729 exit:
730         retval = usb_submit_urb(urb, GFP_ATOMIC);
731         if (retval)
732                 dev_err(dev, "%s - usb_submit_urb failed with result %d\n",
733                         __func__, retval);
734 }
735 
736 /* Callers must hold xpad->odata_lock spinlock */
737 static bool xpad_prepare_next_out_packet(struct usb_xpad *xpad)
738 {
739         struct xpad_output_packet *pkt, *packet = NULL;
740         int i;
741 
742         for (i = 0; i < XPAD_NUM_OUT_PACKETS; i++) {
743                 if (++xpad->last_out_packet >= XPAD_NUM_OUT_PACKETS)
744                         xpad->last_out_packet = 0;
745 
746                 pkt = &xpad->out_packets[xpad->last_out_packet];
747                 if (pkt->pending) {
748                         dev_dbg(&xpad->intf->dev,
749                                 "%s - found pending output packet %d\n",
750                                 __func__, xpad->last_out_packet);
751                         packet = pkt;
752                         break;
753                 }
754         }
755 
756         if (packet) {
757                 memcpy(xpad->odata, packet->data, packet->len);
758                 xpad->irq_out->transfer_buffer_length = packet->len;
759                 return true;
760         }
761 
762         return false;
763 }
764 
765 /* Callers must hold xpad->odata_lock spinlock */
766 static int xpad_try_sending_next_out_packet(struct usb_xpad *xpad)
767 {
768         int error;
769 
770         if (!xpad->irq_out_active && xpad_prepare_next_out_packet(xpad)) {
771                 usb_anchor_urb(xpad->irq_out, &xpad->irq_out_anchor);
772                 error = usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
773                 if (error) {
774                         dev_err(&xpad->intf->dev,
775                                 "%s - usb_submit_urb failed with result %d\n",
776                                 __func__, error);
777                         usb_unanchor_urb(xpad->irq_out);
778                         return -EIO;
779                 }
780 
781                 xpad->irq_out_active = true;
782         }
783 
784         return 0;
785 }
786 
787 static void xpad_irq_out(struct urb *urb)
788 {
789         struct usb_xpad *xpad = urb->context;
790         struct device *dev = &xpad->intf->dev;
791         int status = urb->status;
792         int error;
793         unsigned long flags;
794 
795         spin_lock_irqsave(&xpad->odata_lock, flags);
796 
797         switch (status) {
798         case 0:
799                 /* success */
800                 xpad->out_packets[xpad->last_out_packet].pending = false;
801                 xpad->irq_out_active = xpad_prepare_next_out_packet(xpad);
802                 break;
803 
804         case -ECONNRESET:
805         case -ENOENT:
806         case -ESHUTDOWN:
807                 /* this urb is terminated, clean up */
808                 dev_dbg(dev, "%s - urb shutting down with status: %d\n",
809                         __func__, status);
810                 xpad->irq_out_active = false;
811                 break;
812 
813         default:
814                 dev_dbg(dev, "%s - nonzero urb status received: %d\n",
815                         __func__, status);
816                 break;
817         }
818 
819         if (xpad->irq_out_active) {
820                 usb_anchor_urb(urb, &xpad->irq_out_anchor);
821                 error = usb_submit_urb(urb, GFP_ATOMIC);
822                 if (error) {
823                         dev_err(dev,
824                                 "%s - usb_submit_urb failed with result %d\n",
825                                 __func__, error);
826                         usb_unanchor_urb(urb);
827                         xpad->irq_out_active = false;
828                 }
829         }
830 
831         spin_unlock_irqrestore(&xpad->odata_lock, flags);
832 }
833 
834 static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad)
835 {
836         struct usb_endpoint_descriptor *ep_irq_out;
837         int ep_irq_out_idx;
838         int error;
839 
840         if (xpad->xtype == XTYPE_UNKNOWN)
841                 return 0;
842 
843         init_usb_anchor(&xpad->irq_out_anchor);
844 
845         xpad->odata = usb_alloc_coherent(xpad->udev, XPAD_PKT_LEN,
846                                          GFP_KERNEL, &xpad->odata_dma);
847         if (!xpad->odata) {
848                 error = -ENOMEM;
849                 goto fail1;
850         }
851 
852         spin_lock_init(&xpad->odata_lock);
853 
854         xpad->irq_out = usb_alloc_urb(0, GFP_KERNEL);
855         if (!xpad->irq_out) {
856                 error = -ENOMEM;
857                 goto fail2;
858         }
859 
860         /* Xbox One controller has in/out endpoints swapped. */
861         ep_irq_out_idx = xpad->xtype == XTYPE_XBOXONE ? 0 : 1;
862         ep_irq_out = &intf->cur_altsetting->endpoint[ep_irq_out_idx].desc;
863 
864         usb_fill_int_urb(xpad->irq_out, xpad->udev,
865                          usb_sndintpipe(xpad->udev, ep_irq_out->bEndpointAddress),
866                          xpad->odata, XPAD_PKT_LEN,
867                          xpad_irq_out, xpad, ep_irq_out->bInterval);
868         xpad->irq_out->transfer_dma = xpad->odata_dma;
869         xpad->irq_out->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
870 
871         return 0;
872 
873  fail2: usb_free_coherent(xpad->udev, XPAD_PKT_LEN, xpad->odata, xpad->odata_dma);
874  fail1: return error;
875 }
876 
877 static void xpad_stop_output(struct usb_xpad *xpad)
878 {
879         if (xpad->xtype != XTYPE_UNKNOWN) {
880                 if (!usb_wait_anchor_empty_timeout(&xpad->irq_out_anchor,
881                                                    5000)) {
882                         dev_warn(&xpad->intf->dev,
883                                  "timed out waiting for output URB to complete, killing\n");
884                         usb_kill_anchored_urbs(&xpad->irq_out_anchor);
885                 }
886         }
887 }
888 
889 static void xpad_deinit_output(struct usb_xpad *xpad)
890 {
891         if (xpad->xtype != XTYPE_UNKNOWN) {
892                 usb_free_urb(xpad->irq_out);
893                 usb_free_coherent(xpad->udev, XPAD_PKT_LEN,
894                                 xpad->odata, xpad->odata_dma);
895         }
896 }
897 
898 static int xpad_inquiry_pad_presence(struct usb_xpad *xpad)
899 {
900         struct xpad_output_packet *packet =
901                         &xpad->out_packets[XPAD_OUT_CMD_IDX];
902         unsigned long flags;
903         int retval;
904 
905         spin_lock_irqsave(&xpad->odata_lock, flags);
906 
907         packet->data[0] = 0x08;
908         packet->data[1] = 0x00;
909         packet->data[2] = 0x0F;
910         packet->data[3] = 0xC0;
911         packet->data[4] = 0x00;
912         packet->data[5] = 0x00;
913         packet->data[6] = 0x00;
914         packet->data[7] = 0x00;
915         packet->data[8] = 0x00;
916         packet->data[9] = 0x00;
917         packet->data[10] = 0x00;
918         packet->data[11] = 0x00;
919         packet->len = 12;
920         packet->pending = true;
921 
922         /* Reset the sequence so we send out presence first */
923         xpad->last_out_packet = -1;
924         retval = xpad_try_sending_next_out_packet(xpad);
925 
926         spin_unlock_irqrestore(&xpad->odata_lock, flags);
927 
928         return retval;
929 }
930 
931 static int xpad_start_xbox_one(struct usb_xpad *xpad)
932 {
933         struct xpad_output_packet *packet =
934                         &xpad->out_packets[XPAD_OUT_CMD_IDX];
935         unsigned long flags;
936         int retval;
937 
938         spin_lock_irqsave(&xpad->odata_lock, flags);
939 
940         /* Xbox one controller needs to be initialized. */
941         packet->data[0] = 0x05;
942         packet->data[1] = 0x20;
943         packet->data[2] = xpad->odata_serial++; /* packet serial */
944         packet->data[3] = 0x01; /* rumble bit enable?  */
945         packet->data[4] = 0x00;
946         packet->len = 5;
947         packet->pending = true;
948 
949         /* Reset the sequence so we send out start packet first */
950         xpad->last_out_packet = -1;
951         retval = xpad_try_sending_next_out_packet(xpad);
952 
953         spin_unlock_irqrestore(&xpad->odata_lock, flags);
954 
955         return retval;
956 }
957 
958 #ifdef CONFIG_JOYSTICK_XPAD_FF
959 static int xpad_play_effect(struct input_dev *dev, void *data, struct ff_effect *effect)
960 {
961         struct usb_xpad *xpad = input_get_drvdata(dev);
962         struct xpad_output_packet *packet = &xpad->out_packets[XPAD_OUT_FF_IDX];
963         __u16 strong;
964         __u16 weak;
965         int retval;
966         unsigned long flags;
967 
968         if (effect->type != FF_RUMBLE)
969                 return 0;
970 
971         strong = effect->u.rumble.strong_magnitude;
972         weak = effect->u.rumble.weak_magnitude;
973 
974         spin_lock_irqsave(&xpad->odata_lock, flags);
975 
976         switch (xpad->xtype) {
977         case XTYPE_XBOX:
978                 packet->data[0] = 0x00;
979                 packet->data[1] = 0x06;
980                 packet->data[2] = 0x00;
981                 packet->data[3] = strong / 256; /* left actuator */
982                 packet->data[4] = 0x00;
983                 packet->data[5] = weak / 256;   /* right actuator */
984                 packet->len = 6;
985                 packet->pending = true;
986                 break;
987 
988         case XTYPE_XBOX360:
989                 packet->data[0] = 0x00;
990                 packet->data[1] = 0x08;
991                 packet->data[2] = 0x00;
992                 packet->data[3] = strong / 256;  /* left actuator? */
993                 packet->data[4] = weak / 256;   /* right actuator? */
994                 packet->data[5] = 0x00;
995                 packet->data[6] = 0x00;
996                 packet->data[7] = 0x00;
997                 packet->len = 8;
998                 packet->pending = true;
999                 break;
1000 
1001         case XTYPE_XBOX360W:
1002                 packet->data[0] = 0x00;
1003                 packet->data[1] = 0x01;
1004                 packet->data[2] = 0x0F;
1005                 packet->data[3] = 0xC0;
1006                 packet->data[4] = 0x00;
1007                 packet->data[5] = strong / 256;
1008                 packet->data[6] = weak / 256;
1009                 packet->data[7] = 0x00;
1010                 packet->data[8] = 0x00;
1011                 packet->data[9] = 0x00;
1012                 packet->data[10] = 0x00;
1013                 packet->data[11] = 0x00;
1014                 packet->len = 12;
1015                 packet->pending = true;
1016                 break;
1017 
1018         case XTYPE_XBOXONE:
1019                 packet->data[0] = 0x09; /* activate rumble */
1020                 packet->data[1] = 0x08;
1021                 packet->data[2] = xpad->odata_serial++;
1022                 packet->data[3] = 0x08; /* continuous effect */
1023                 packet->data[4] = 0x00; /* simple rumble mode */
1024                 packet->data[5] = 0x03; /* L and R actuator only */
1025                 packet->data[6] = 0x00; /* TODO: LT actuator */
1026                 packet->data[7] = 0x00; /* TODO: RT actuator */
1027                 packet->data[8] = strong / 512; /* left actuator */
1028                 packet->data[9] = weak / 512;   /* right actuator */
1029                 packet->data[10] = 0x80;        /* length of pulse */
1030                 packet->data[11] = 0x00;        /* stop period of pulse */
1031                 packet->data[12] = 0x00;
1032                 packet->len = 13;
1033                 packet->pending = true;
1034                 break;
1035 
1036         default:
1037                 dev_dbg(&xpad->dev->dev,
1038                         "%s - rumble command sent to unsupported xpad type: %d\n",
1039                         __func__, xpad->xtype);
1040                 retval = -EINVAL;
1041                 goto out;
1042         }
1043 
1044         retval = xpad_try_sending_next_out_packet(xpad);
1045 
1046 out:
1047         spin_unlock_irqrestore(&xpad->odata_lock, flags);
1048         return retval;
1049 }
1050 
1051 static int xpad_init_ff(struct usb_xpad *xpad)
1052 {
1053         if (xpad->xtype == XTYPE_UNKNOWN)
1054                 return 0;
1055 
1056         input_set_capability(xpad->dev, EV_FF, FF_RUMBLE);
1057 
1058         return input_ff_create_memless(xpad->dev, NULL, xpad_play_effect);
1059 }
1060 
1061 #else
1062 static int xpad_init_ff(struct usb_xpad *xpad) { return 0; }
1063 #endif
1064 
1065 #if defined(CONFIG_JOYSTICK_XPAD_LEDS)
1066 #include <linux/leds.h>
1067 #include <linux/idr.h>
1068 
1069 static DEFINE_IDA(xpad_pad_seq);
1070 
1071 struct xpad_led {
1072         char name[16];
1073         struct led_classdev led_cdev;
1074         struct usb_xpad *xpad;
1075 };
1076 
1077 /**
1078  * set the LEDs on Xbox360 / Wireless Controllers
1079  * @param command
1080  *  0: off
1081  *  1: all blink, then previous setting
1082  *  2: 1/top-left blink, then on
1083  *  3: 2/top-right blink, then on
1084  *  4: 3/bottom-left blink, then on
1085  *  5: 4/bottom-right blink, then on
1086  *  6: 1/top-left on
1087  *  7: 2/top-right on
1088  *  8: 3/bottom-left on
1089  *  9: 4/bottom-right on
1090  * 10: rotate
1091  * 11: blink, based on previous setting
1092  * 12: slow blink, based on previous setting
1093  * 13: rotate with two lights
1094  * 14: persistent slow all blink
1095  * 15: blink once, then previous setting
1096  */
1097 static void xpad_send_led_command(struct usb_xpad *xpad, int command)
1098 {
1099         struct xpad_output_packet *packet =
1100                         &xpad->out_packets[XPAD_OUT_LED_IDX];
1101         unsigned long flags;
1102 
1103         command %= 16;
1104 
1105         spin_lock_irqsave(&xpad->odata_lock, flags);
1106 
1107         switch (xpad->xtype) {
1108         case XTYPE_XBOX360:
1109                 packet->data[0] = 0x01;
1110                 packet->data[1] = 0x03;
1111                 packet->data[2] = command;
1112                 packet->len = 3;
1113                 packet->pending = true;
1114                 break;
1115 
1116         case XTYPE_XBOX360W:
1117                 packet->data[0] = 0x00;
1118                 packet->data[1] = 0x00;
1119                 packet->data[2] = 0x08;
1120                 packet->data[3] = 0x40 + command;
1121                 packet->data[4] = 0x00;
1122                 packet->data[5] = 0x00;
1123                 packet->data[6] = 0x00;
1124                 packet->data[7] = 0x00;
1125                 packet->data[8] = 0x00;
1126                 packet->data[9] = 0x00;
1127                 packet->data[10] = 0x00;
1128                 packet->data[11] = 0x00;
1129                 packet->len = 12;
1130                 packet->pending = true;
1131                 break;
1132         }
1133 
1134         xpad_try_sending_next_out_packet(xpad);
1135 
1136         spin_unlock_irqrestore(&xpad->odata_lock, flags);
1137 }
1138 
1139 /*
1140  * Light up the segment corresponding to the pad number on
1141  * Xbox 360 Controllers.
1142  */
1143 static void xpad_identify_controller(struct usb_xpad *xpad)
1144 {
1145         led_set_brightness(&xpad->led->led_cdev, (xpad->pad_nr % 4) + 2);
1146 }
1147 
1148 static void xpad_led_set(struct led_classdev *led_cdev,
1149                          enum led_brightness value)
1150 {
1151         struct xpad_led *xpad_led = container_of(led_cdev,
1152                                                  struct xpad_led, led_cdev);
1153 
1154         xpad_send_led_command(xpad_led->xpad, value);
1155 }
1156 
1157 static int xpad_led_probe(struct usb_xpad *xpad)
1158 {
1159         struct xpad_led *led;
1160         struct led_classdev *led_cdev;
1161         int error;
1162 
1163         if (xpad->xtype != XTYPE_XBOX360 && xpad->xtype != XTYPE_XBOX360W)
1164                 return 0;
1165 
1166         xpad->led = led = kzalloc(sizeof(struct xpad_led), GFP_KERNEL);
1167         if (!led)
1168                 return -ENOMEM;
1169 
1170         xpad->pad_nr = ida_simple_get(&xpad_pad_seq, 0, 0, GFP_KERNEL);
1171         if (xpad->pad_nr < 0) {
1172                 error = xpad->pad_nr;
1173                 goto err_free_mem;
1174         }
1175 
1176         snprintf(led->name, sizeof(led->name), "xpad%d", xpad->pad_nr);
1177         led->xpad = xpad;
1178 
1179         led_cdev = &led->led_cdev;
1180         led_cdev->name = led->name;
1181         led_cdev->brightness_set = xpad_led_set;
1182 
1183         error = led_classdev_register(&xpad->udev->dev, led_cdev);
1184         if (error)
1185                 goto err_free_id;
1186 
1187         xpad_identify_controller(xpad);
1188 
1189         return 0;
1190 
1191 err_free_id:
1192         ida_simple_remove(&xpad_pad_seq, xpad->pad_nr);
1193 err_free_mem:
1194         kfree(led);
1195         xpad->led = NULL;
1196         return error;
1197 }
1198 
1199 static void xpad_led_disconnect(struct usb_xpad *xpad)
1200 {
1201         struct xpad_led *xpad_led = xpad->led;
1202 
1203         if (xpad_led) {
1204                 led_classdev_unregister(&xpad_led->led_cdev);
1205                 ida_simple_remove(&xpad_pad_seq, xpad->pad_nr);
1206                 kfree(xpad_led);
1207         }
1208 }
1209 #else
1210 static int xpad_led_probe(struct usb_xpad *xpad) { return 0; }
1211 static void xpad_led_disconnect(struct usb_xpad *xpad) { }
1212 #endif
1213 
1214 static int xpad_start_input(struct usb_xpad *xpad)
1215 {
1216         int error;
1217 
1218         if (usb_submit_urb(xpad->irq_in, GFP_KERNEL))
1219                 return -EIO;
1220 
1221         if (xpad->xtype == XTYPE_XBOXONE) {
1222                 error = xpad_start_xbox_one(xpad);
1223                 if (error) {
1224                         usb_kill_urb(xpad->irq_in);
1225                         return error;
1226                 }
1227         }
1228 
1229         return 0;
1230 }
1231 
1232 static void xpad_stop_input(struct usb_xpad *xpad)
1233 {
1234         usb_kill_urb(xpad->irq_in);
1235 }
1236 
1237 static int xpad360w_start_input(struct usb_xpad *xpad)
1238 {
1239         int error;
1240 
1241         error = usb_submit_urb(xpad->irq_in, GFP_KERNEL);
1242         if (error)
1243                 return -EIO;
1244 
1245         /*
1246          * Send presence packet.
1247          * This will force the controller to resend connection packets.
1248          * This is useful in the case we activate the module after the
1249          * adapter has been plugged in, as it won't automatically
1250          * send us info about the controllers.
1251          */
1252         error = xpad_inquiry_pad_presence(xpad);
1253         if (error) {
1254                 usb_kill_urb(xpad->irq_in);
1255                 return error;
1256         }
1257 
1258         return 0;
1259 }
1260 
1261 static void xpad360w_stop_input(struct usb_xpad *xpad)
1262 {
1263         usb_kill_urb(xpad->irq_in);
1264 
1265         /* Make sure we are done with presence work if it was scheduled */
1266         flush_work(&xpad->work);
1267 }
1268 
1269 static int xpad_open(struct input_dev *dev)
1270 {
1271         struct usb_xpad *xpad = input_get_drvdata(dev);
1272 
1273         return xpad_start_input(xpad);
1274 }
1275 
1276 static void xpad_close(struct input_dev *dev)
1277 {
1278         struct usb_xpad *xpad = input_get_drvdata(dev);
1279 
1280         xpad_stop_input(xpad);
1281 }
1282 
1283 static void xpad_set_up_abs(struct input_dev *input_dev, signed short abs)
1284 {
1285         struct usb_xpad *xpad = input_get_drvdata(input_dev);
1286         set_bit(abs, input_dev->absbit);
1287 
1288         switch (abs) {
1289         case ABS_X:
1290         case ABS_Y:
1291         case ABS_RX:
1292         case ABS_RY:    /* the two sticks */
1293                 input_set_abs_params(input_dev, abs, -32768, 32767, 16, 128);
1294                 break;
1295         case ABS_Z:
1296         case ABS_RZ:    /* the triggers (if mapped to axes) */
1297                 if (xpad->xtype == XTYPE_XBOXONE)
1298                         input_set_abs_params(input_dev, abs, 0, 1023, 0, 0);
1299                 else
1300                         input_set_abs_params(input_dev, abs, 0, 255, 0, 0);
1301                 break;
1302         case ABS_HAT0X:
1303         case ABS_HAT0Y: /* the d-pad (only if dpad is mapped to axes */
1304                 input_set_abs_params(input_dev, abs, -1, 1, 0, 0);
1305                 break;
1306         }
1307 }
1308 
1309 static void xpad_deinit_input(struct usb_xpad *xpad)
1310 {
1311         if (xpad->input_created) {
1312                 xpad->input_created = false;
1313                 xpad_led_disconnect(xpad);
1314                 input_unregister_device(xpad->dev);
1315         }
1316 }
1317 
1318 static int xpad_init_input(struct usb_xpad *xpad)
1319 {
1320         struct input_dev *input_dev;
1321         int i, error;
1322 
1323         input_dev = input_allocate_device();
1324         if (!input_dev)
1325                 return -ENOMEM;
1326 
1327         xpad->dev = input_dev;
1328         input_dev->name = xpad->name;
1329         input_dev->phys = xpad->phys;
1330         usb_to_input_id(xpad->udev, &input_dev->id);
1331         input_dev->dev.parent = &xpad->intf->dev;
1332 
1333         input_set_drvdata(input_dev, xpad);
1334 
1335         if (xpad->xtype != XTYPE_XBOX360W) {
1336                 input_dev->open = xpad_open;
1337                 input_dev->close = xpad_close;
1338         }
1339 
1340         __set_bit(EV_KEY, input_dev->evbit);
1341 
1342         if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
1343                 __set_bit(EV_ABS, input_dev->evbit);
1344                 /* set up axes */
1345                 for (i = 0; xpad_abs[i] >= 0; i++)
1346                         xpad_set_up_abs(input_dev, xpad_abs[i]);
1347         }
1348 
1349         /* set up standard buttons */
1350         for (i = 0; xpad_common_btn[i] >= 0; i++)
1351                 __set_bit(xpad_common_btn[i], input_dev->keybit);
1352 
1353         /* set up model-specific ones */
1354         if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype == XTYPE_XBOX360W ||
1355             xpad->xtype == XTYPE_XBOXONE) {
1356                 for (i = 0; xpad360_btn[i] >= 0; i++)
1357                         __set_bit(xpad360_btn[i], input_dev->keybit);
1358         } else {
1359                 for (i = 0; xpad_btn[i] >= 0; i++)
1360                         __set_bit(xpad_btn[i], input_dev->keybit);
1361         }
1362 
1363         if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
1364                 for (i = 0; xpad_btn_pad[i] >= 0; i++)
1365                         __set_bit(xpad_btn_pad[i], input_dev->keybit);
1366         }
1367 
1368         /*
1369          * This should be a simple else block. However historically
1370          * xbox360w has mapped DPAD to buttons while xbox360 did not. This
1371          * made no sense, but now we can not just switch back and have to
1372          * support both behaviors.
1373          */
1374         if (!(xpad->mapping & MAP_DPAD_TO_BUTTONS) ||
1375             xpad->xtype == XTYPE_XBOX360W) {
1376                 for (i = 0; xpad_abs_pad[i] >= 0; i++)
1377                         xpad_set_up_abs(input_dev, xpad_abs_pad[i]);
1378         }
1379 
1380         if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
1381                 for (i = 0; xpad_btn_triggers[i] >= 0; i++)
1382                         __set_bit(xpad_btn_triggers[i], input_dev->keybit);
1383         } else {
1384                 for (i = 0; xpad_abs_triggers[i] >= 0; i++)
1385                         xpad_set_up_abs(input_dev, xpad_abs_triggers[i]);
1386         }
1387 
1388         error = xpad_init_ff(xpad);
1389         if (error)
1390                 goto err_free_input;
1391 
1392         error = xpad_led_probe(xpad);
1393         if (error)
1394                 goto err_destroy_ff;
1395 
1396         error = input_register_device(xpad->dev);
1397         if (error)
1398                 goto err_disconnect_led;
1399 
1400         xpad->input_created = true;
1401         return 0;
1402 
1403 err_disconnect_led:
1404         xpad_led_disconnect(xpad);
1405 err_destroy_ff:
1406         input_ff_destroy(input_dev);
1407 err_free_input:
1408         input_free_device(input_dev);
1409         return error;
1410 }
1411 
1412 static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id)
1413 {
1414         struct usb_device *udev = interface_to_usbdev(intf);
1415         struct usb_xpad *xpad;
1416         struct usb_endpoint_descriptor *ep_irq_in;
1417         int ep_irq_in_idx;
1418         int i, error;
1419 
1420         for (i = 0; xpad_device[i].idVendor; i++) {
1421                 if ((le16_to_cpu(udev->descriptor.idVendor) == xpad_device[i].idVendor) &&
1422                     (le16_to_cpu(udev->descriptor.idProduct) == xpad_device[i].idProduct))
1423                         break;
1424         }
1425 
1426         if (xpad_device[i].xtype == XTYPE_XBOXONE &&
1427             intf->cur_altsetting->desc.bInterfaceNumber != 0) {
1428                 /*
1429                  * The Xbox One controller lists three interfaces all with the
1430                  * same interface class, subclass and protocol. Differentiate by
1431                  * interface number.
1432                  */
1433                 return -ENODEV;
1434         }
1435 
1436         xpad = kzalloc(sizeof(struct usb_xpad), GFP_KERNEL);
1437         if (!xpad)
1438                 return -ENOMEM;
1439 
1440         usb_make_path(udev, xpad->phys, sizeof(xpad->phys));
1441         strlcat(xpad->phys, "/input0", sizeof(xpad->phys));
1442 
1443         xpad->idata = usb_alloc_coherent(udev, XPAD_PKT_LEN,
1444                                          GFP_KERNEL, &xpad->idata_dma);
1445         if (!xpad->idata) {
1446                 error = -ENOMEM;
1447                 goto err_free_mem;
1448         }
1449 
1450         xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL);
1451         if (!xpad->irq_in) {
1452                 error = -ENOMEM;
1453                 goto err_free_idata;
1454         }
1455 
1456         xpad->udev = udev;
1457         xpad->intf = intf;
1458         xpad->mapping = xpad_device[i].mapping;
1459         xpad->xtype = xpad_device[i].xtype;
1460         xpad->name = xpad_device[i].name;
1461         INIT_WORK(&xpad->work, xpad_presence_work);
1462 
1463         if (xpad->xtype == XTYPE_UNKNOWN) {
1464                 if (intf->cur_altsetting->desc.bInterfaceClass == USB_CLASS_VENDOR_SPEC) {
1465                         if (intf->cur_altsetting->desc.bInterfaceProtocol == 129)
1466                                 xpad->xtype = XTYPE_XBOX360W;
1467                         else
1468                                 xpad->xtype = XTYPE_XBOX360;
1469                 } else {
1470                         xpad->xtype = XTYPE_XBOX;
1471                 }
1472 
1473                 if (dpad_to_buttons)
1474                         xpad->mapping |= MAP_DPAD_TO_BUTTONS;
1475                 if (triggers_to_buttons)
1476                         xpad->mapping |= MAP_TRIGGERS_TO_BUTTONS;
1477                 if (sticks_to_null)
1478                         xpad->mapping |= MAP_STICKS_TO_NULL;
1479         }
1480 
1481         error = xpad_init_output(intf, xpad);
1482         if (error)
1483                 goto err_free_in_urb;
1484 
1485         /* Xbox One controller has in/out endpoints swapped. */
1486         ep_irq_in_idx = xpad->xtype == XTYPE_XBOXONE ? 1 : 0;
1487         ep_irq_in = &intf->cur_altsetting->endpoint[ep_irq_in_idx].desc;
1488 
1489         usb_fill_int_urb(xpad->irq_in, udev,
1490                          usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress),
1491                          xpad->idata, XPAD_PKT_LEN, xpad_irq_in,
1492                          xpad, ep_irq_in->bInterval);
1493         xpad->irq_in->transfer_dma = xpad->idata_dma;
1494         xpad->irq_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1495 
1496         usb_set_intfdata(intf, xpad);
1497 
1498         if (xpad->xtype == XTYPE_XBOX360W) {
1499                 /*
1500                  * Submit the int URB immediately rather than waiting for open
1501                  * because we get status messages from the device whether
1502                  * or not any controllers are attached.  In fact, it's
1503                  * exactly the message that a controller has arrived that
1504                  * we're waiting for.
1505                  */
1506                 error = xpad360w_start_input(xpad);
1507                 if (error)
1508                         goto err_deinit_output;
1509                 /*
1510                  * Wireless controllers require RESET_RESUME to work properly
1511                  * after suspend. Ideally this quirk should be in usb core
1512                  * quirk list, but we have too many vendors producing these
1513                  * controllers and we'd need to maintain 2 identical lists
1514                  * here in this driver and in usb core.
1515                  */
1516                 udev->quirks |= USB_QUIRK_RESET_RESUME;
1517         } else {
1518                 error = xpad_init_input(xpad);
1519                 if (error)
1520                         goto err_deinit_output;
1521         }
1522         return 0;
1523 
1524 err_deinit_output:
1525         xpad_deinit_output(xpad);
1526 err_free_in_urb:
1527         usb_free_urb(xpad->irq_in);
1528 err_free_idata:
1529         usb_free_coherent(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
1530 err_free_mem:
1531         kfree(xpad);
1532         return error;
1533 }
1534 
1535 static void xpad_disconnect(struct usb_interface *intf)
1536 {
1537         struct usb_xpad *xpad = usb_get_intfdata(intf);
1538 
1539         if (xpad->xtype == XTYPE_XBOX360W)
1540                 xpad360w_stop_input(xpad);
1541 
1542         xpad_deinit_input(xpad);
1543 
1544         /*
1545          * Now that both input device and LED device are gone we can
1546          * stop output URB.
1547          */
1548         xpad_stop_output(xpad);
1549 
1550         xpad_deinit_output(xpad);
1551 
1552         usb_free_urb(xpad->irq_in);
1553         usb_free_coherent(xpad->udev, XPAD_PKT_LEN,
1554                         xpad->idata, xpad->idata_dma);
1555 
1556         kfree(xpad);
1557 
1558         usb_set_intfdata(intf, NULL);
1559 }
1560 
1561 static int xpad_suspend(struct usb_interface *intf, pm_message_t message)
1562 {
1563         struct usb_xpad *xpad = usb_get_intfdata(intf);
1564         struct input_dev *input = xpad->dev;
1565 
1566         if (xpad->xtype == XTYPE_XBOX360W) {
1567                 /*
1568                  * Wireless controllers always listen to input so
1569                  * they are notified when controller shows up
1570                  * or goes away.
1571                  */
1572                 xpad360w_stop_input(xpad);
1573         } else {
1574                 mutex_lock(&input->mutex);
1575                 if (input->users)
1576                         xpad_stop_input(xpad);
1577                 mutex_unlock(&input->mutex);
1578         }
1579 
1580         xpad_stop_output(xpad);
1581 
1582         return 0;
1583 }
1584 
1585 static int xpad_resume(struct usb_interface *intf)
1586 {
1587         struct usb_xpad *xpad = usb_get_intfdata(intf);
1588         struct input_dev *input = xpad->dev;
1589         int retval = 0;
1590 
1591         if (xpad->xtype == XTYPE_XBOX360W) {
1592                 retval = xpad360w_start_input(xpad);
1593         } else {
1594                 mutex_lock(&input->mutex);
1595                 if (input->users)
1596                         retval = xpad_start_input(xpad);
1597                 mutex_unlock(&input->mutex);
1598         }
1599 
1600         return retval;
1601 }
1602 
1603 static struct usb_driver xpad_driver = {
1604         .name           = "xpad",
1605         .probe          = xpad_probe,
1606         .disconnect     = xpad_disconnect,
1607         .suspend        = xpad_suspend,
1608         .resume         = xpad_resume,
1609         .reset_resume   = xpad_resume,
1610         .id_table       = xpad_table,
1611 };
1612 
1613 module_usb_driver(xpad_driver);
1614 
1615 MODULE_AUTHOR(DRIVER_AUTHOR);
1616 MODULE_DESCRIPTION(DRIVER_DESC);
1617 MODULE_LICENSE("GPL");
1618 

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