xpad.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * X-Box gamepad driver
 *
 * Copyright (c) 2002 Marko Friedemann <[email protected]>
 *               2004 Oliver Schwartz <[email protected]>,
 *                    Steven Toth <[email protected]>,
 *                    Franz Lehner <[email protected]>,
 *                    Ivan Hawkes <[email protected]>
 *               2005 Dominic Cerquetti <[email protected]>
 *               2006 Adam Buchbinder <[email protected]>
 *               2007 Jan Kratochvil <[email protected]>
 *               2010 Christoph Fritz <[email protected]>
 *
 * This driver is based on:
 *  - information from     http://euc.jp/periphs/xbox-controller.ja.html
 *  - the iForce driver    drivers/char/joystick/iforce.c
 *  - the skeleton-driver  drivers/usb/usb-skeleton.c
 *  - Xbox 360 information http://www.free60.org/wiki/Gamepad
 *  - Xbox One information https://github.com/quantus/xbox-one-controller-protocol
 *
 * Thanks to:
 *  - ITO Takayuki for providing essential xpad information on his website
 *  - Vojtech Pavlik     - iforce driver / input subsystem
 *  - Greg Kroah-Hartman - usb-skeleton driver
 *  - XBOX Linux project - extra USB id's
 *  - Pekka Pöyry (quantus) - Xbox One controller reverse engineering
 *
 * TODO:
 *  - fine tune axes (especially trigger axes)
 *  - fix "analog" buttons (reported as digital now)
 *  - get rumble working
 *  - need USB IDs for other dance pads
 *
 * History:
 *
 * 2002-06-27 - 0.0.1 : first version, just said "XBOX HID controller"
 *
 * 2002-07-02 - 0.0.2 : basic working version
 *  - all axes and 9 of the 10 buttons work (german InterAct device)
 *  - the black button does not work
 *
 * 2002-07-14 - 0.0.3 : rework by Vojtech Pavlik
 *  - indentation fixes
 *  - usb + input init sequence fixes
 *
 * 2002-07-16 - 0.0.4 : minor changes, merge with Vojtech's v0.0.3
 *  - verified the lack of HID and report descriptors
 *  - verified that ALL buttons WORK
 *  - fixed d-pad to axes mapping
 *
 * 2002-07-17 - 0.0.5 : simplified d-pad handling
 *
 * 2004-10-02 - 0.0.6 : DDR pad support
 *  - borrowed from the XBOX linux kernel
 *  - USB id's for commonly used dance pads are present
 *  - dance pads will map D-PAD to buttons, not axes
 *  - pass the module paramater 'dpad_to_buttons' to force
 *    the D-PAD to map to buttons if your pad is not detected
 *
 * Later changes can be tracked in SCM.
 */
// #define DEBUG
#include <linux/kernel.h>
#include <linux/input.h>
#include <linux/rcupdate.h>
#include <linux/slab.h>
#include <linux/stat.h>
#include <linux/module.h>
#include <linux/usb/input.h>
#include <linux/usb/quirks.h>

#define XPAD_PKT_LEN 64

/*
 * xbox d-pads should map to buttons, as is required for DDR pads
 * but we map them to axes when possible to simplify things
 */
#define MAP_DPAD_TO_BUTTONS		(1 << 0)
#define MAP_TRIGGERS_TO_BUTTONS		(1 << 1)
#define MAP_STICKS_TO_NULL		(1 << 2)
#define MAP_SELECT_BUTTON		(1 << 3)
#define DANCEPAD_MAP_CONFIG	(MAP_DPAD_TO_BUTTONS |			\
				MAP_TRIGGERS_TO_BUTTONS | MAP_STICKS_TO_NULL)

#define XTYPE_XBOX        0
#define XTYPE_XBOX360     1
#define XTYPE_XBOX360W    2
#define XTYPE_XBOXONE     3
#define XTYPE_UNKNOWN     4

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

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

static bool sticks_to_null;
module_param(sticks_to_null, bool, S_IRUGO);
MODULE_PARM_DESC(sticks_to_null, "Do not map sticks at all for unknown pads");

static bool auto_poweroff = true;
module_param(auto_poweroff, bool, S_IWUSR | S_IRUGO);
MODULE_PARM_DESC(auto_poweroff, "Power off wireless controllers on suspend");

static const struct xpad_device {
	u16 idVendor;
	u16 idProduct;
	char *name;
	u8 mapping;
	u8 xtype;
} xpad_device[] = {
	{ 0x0079, 0x18d4, "GPD Win 2 X-Box Controller", 0, XTYPE_XBOX360 },
	{ 0x044f, 0x0f00, "Thrustmaster Wheel", 0, XTYPE_XBOX },
	{ 0x044f, 0x0f03, "Thrustmaster Wheel", 0, XTYPE_XBOX },
	{ 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", 0, XTYPE_XBOX },
	{ 0x044f, 0x0f10, "Thrustmaster Modena GT Wheel", 0, XTYPE_XBOX },
	{ 0x044f, 0xb326, "Thrustmaster Gamepad GP XID", 0, XTYPE_XBOX360 },
	{ 0x045e, 0x0202, "Microsoft X-Box pad v1 (US)", 0, XTYPE_XBOX },
	{ 0x045e, 0x0285, "Microsoft X-Box pad (Japan)", 0, XTYPE_XBOX },
	{ 0x045e, 0x0287, "Microsoft Xbox Controller S", 0, XTYPE_XBOX },
	{ 0x045e, 0x0288, "Microsoft Xbox Controller S v2", 0, XTYPE_XBOX },
	{ 0x045e, 0x0289, "Microsoft X-Box pad v2 (US)", 0, XTYPE_XBOX },
	{ 0x045e, 0x028e, "Microsoft X-Box 360 pad", 0, XTYPE_XBOX360 },
	{ 0x045e, 0x028f, "Microsoft X-Box 360 pad v2", 0, XTYPE_XBOX360 },
	{ 0x045e, 0x0291, "Xbox 360 Wireless Receiver (XBOX)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
	{ 0x045e, 0x02d1, "Microsoft X-Box One pad", 0, XTYPE_XBOXONE },
	{ 0x045e, 0x02dd, "Microsoft X-Box One pad (Firmware 2015)", 0, XTYPE_XBOXONE },
	{ 0x045e, 0x02e3, "Microsoft X-Box One Elite pad", 0, XTYPE_XBOXONE },
	{ 0x045e, 0x02ea, "Microsoft X-Box One S pad", 0, XTYPE_XBOXONE },
	{ 0x045e, 0x0719, "Xbox 360 Wireless Receiver", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
	{ 0x045e, 0x0b12, "Microsoft Xbox One X pad", MAP_SELECT_BUTTON, XTYPE_XBOXONE },
	{ 0x046d, 0xc21d, "Logitech Gamepad F310", 0, XTYPE_XBOX360 },
	{ 0x046d, 0xc21e, "Logitech Gamepad F510", 0, XTYPE_XBOX360 },
	{ 0x046d, 0xc21f, "Logitech Gamepad F710", 0, XTYPE_XBOX360 },
	{ 0x046d, 0xc242, "Logitech Chillstream Controller", 0, XTYPE_XBOX360 },
	{ 0x046d, 0xca84, "Logitech Xbox Cordless Controller", 0, XTYPE_XBOX },
	{ 0x046d, 0xca88, "Logitech Compact Controller for Xbox", 0, XTYPE_XBOX },
	{ 0x046d, 0xca8a, "Logitech Precision Vibration Feedback Wheel", 0, XTYPE_XBOX },
	{ 0x046d, 0xcaa3, "Logitech DriveFx Racing Wheel", 0, XTYPE_XBOX360 },
	{ 0x056e, 0x2004, "Elecom JC-U3613M", 0, XTYPE_XBOX360 },
	{ 0x05fd, 0x1007, "Mad Catz Controller (unverified)", 0, XTYPE_XBOX },
	{ 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)", 0, XTYPE_XBOX },
	{ 0x05fe, 0x3030, "Chic Controller", 0, XTYPE_XBOX },
	{ 0x05fe, 0x3031, "Chic Controller", 0, XTYPE_XBOX },
	{ 0x062a, 0x0020, "Logic3 Xbox GamePad", 0, XTYPE_XBOX },
	{ 0x062a, 0x0033, "Competition Pro Steering Wheel", 0, XTYPE_XBOX },
	{ 0x06a3, 0x0200, "Saitek Racing Wheel", 0, XTYPE_XBOX },
	{ 0x06a3, 0x0201, "Saitek Adrenalin", 0, XTYPE_XBOX },
	{ 0x06a3, 0xf51a, "Saitek P3600", 0, XTYPE_XBOX360 },
	{ 0x0738, 0x4506, "Mad Catz 4506 Wireless Controller", 0, XTYPE_XBOX },
	{ 0x0738, 0x4516, "Mad Catz Control Pad", 0, XTYPE_XBOX },
	{ 0x0738, 0x4520, "Mad Catz Control Pad Pro", 0, XTYPE_XBOX },
	{ 0x0738, 0x4522, "Mad Catz LumiCON", 0, XTYPE_XBOX },
	{ 0x0738, 0x4526, "Mad Catz Control Pad Pro", 0, XTYPE_XBOX },
	{ 0x0738, 0x4530, "Mad Catz Universal MC2 Racing Wheel and Pedals", 0, XTYPE_XBOX },
	{ 0x0738, 0x4536, "Mad Catz MicroCON", 0, XTYPE_XBOX },
	{ 0x0738, 0x4540, "Mad Catz Beat Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
	{ 0x0738, 0x4556, "Mad Catz Lynx Wireless Controller", 0, XTYPE_XBOX },
	{ 0x0738, 0x4586, "Mad Catz MicroCon Wireless Controller", 0, XTYPE_XBOX },
	{ 0x0738, 0x4588, "Mad Catz Blaster", 0, XTYPE_XBOX },
	{ 0x0738, 0x45ff, "Mad Catz Beat Pad (w/ Handle)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
	{ 0x0738, 0x4716, "Mad Catz Wired Xbox 360 Controller", 0, XTYPE_XBOX360 },
	{ 0x0738, 0x4718, "Mad Catz Street Fighter IV FightStick SE", 0, XTYPE_XBOX360 },
	{ 0x0738, 0x4726, "Mad Catz Xbox 360 Controller", 0, XTYPE_XBOX360 },
	{ 0x0738, 0x4728, "Mad Catz Street Fighter IV FightPad", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x0738, 0x4736, "Mad Catz MicroCon Gamepad", 0, XTYPE_XBOX360 },
	{ 0x0738, 0x4738, "Mad Catz Wired Xbox 360 Controller (SFIV)", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x0738, 0x4740, "Mad Catz Beat Pad", 0, XTYPE_XBOX360 },
	{ 0x0738, 0x4743, "Mad Catz Beat Pad Pro", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
	{ 0x0738, 0x4758, "Mad Catz Arcade Game Stick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x0738, 0x4a01, "Mad Catz FightStick TE 2", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOXONE },
	{ 0x0738, 0x6040, "Mad Catz Beat Pad Pro", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
	{ 0x0738, 0x9871, "Mad Catz Portable Drum", 0, XTYPE_XBOX360 },
	{ 0x0738, 0xb726, "Mad Catz Xbox controller - MW2", 0, XTYPE_XBOX360 },
	{ 0x0738, 0xb738, "Mad Catz MVC2TE Stick 2", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x0738, 0xbeef, "Mad Catz JOYTECH NEO SE Advanced GamePad", XTYPE_XBOX360 },
	{ 0x0738, 0xcb02, "Saitek Cyborg Rumble Pad - PC/Xbox 360", 0, XTYPE_XBOX360 },
	{ 0x0738, 0xcb03, "Saitek P3200 Rumble Pad - PC/Xbox 360", 0, XTYPE_XBOX360 },
	{ 0x0738, 0xcb29, "Saitek Aviator Stick AV8R02", 0, XTYPE_XBOX360 },
	{ 0x0738, 0xf738, "Super SFIV FightStick TE S", 0, XTYPE_XBOX360 },
	{ 0x07ff, 0xffff, "Mad Catz GamePad", 0, XTYPE_XBOX360 },
	{ 0x0c12, 0x0005, "Intec wireless", 0, XTYPE_XBOX },
	{ 0x0c12, 0x8801, "Nyko Xbox Controller", 0, XTYPE_XBOX },
	{ 0x0c12, 0x8802, "Zeroplus Xbox Controller", 0, XTYPE_XBOX },
	{ 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", DANCEPAD_MAP_CONFIG, XTYPE_XBOX },
	{ 0x0c12, 0x880a, "Pelican Eclipse PL-2023", 0, XTYPE_XBOX },
	{ 0x0c12, 0x8810, "Zeroplus Xbox Controller", 0, XTYPE_XBOX },
	{ 0x0c12, 0x9902, "HAMA VibraX - *FAULTY HARDWARE*", 0, XTYPE_XBOX },
	{ 0x0d2f, 0x0002, "Andamiro Pump It Up pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
	{ 0x0e4c, 0x1097, "Radica Gamester Controller", 0, XTYPE_XBOX },
	{ 0x0e4c, 0x1103, "Radica Gamester Reflex", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX },
	{ 0x0e4c, 0x2390, "Radica Games Jtech Controller", 0, XTYPE_XBOX },
	{ 0x0e4c, 0x3510, "Radica Gamester", 0, XTYPE_XBOX },
	{ 0x0e6f, 0x0003, "Logic3 Freebird wireless Controller", 0, XTYPE_XBOX },
	{ 0x0e6f, 0x0005, "Eclipse wireless Controller", 0, XTYPE_XBOX },
	{ 0x0e6f, 0x0006, "Edge wireless Controller", 0, XTYPE_XBOX },
	{ 0x0e6f, 0x0008, "After Glow Pro Controller", 0, XTYPE_XBOX },
	{ 0x0e6f, 0x0105, "HSM3 Xbox360 dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x0e6f, 0x0113, "Afterglow AX.1 Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
	{ 0x0e6f, 0x011f, "Rock Candy Gamepad Wired Controller", 0, XTYPE_XBOX360 },
	{ 0x0e6f, 0x0131, "PDP EA Sports Controller", 0, XTYPE_XBOX360 },
	{ 0x0e6f, 0x0133, "Xbox 360 Wired Controller", 0, XTYPE_XBOX360 },
	{ 0x0e6f, 0x0139, "Afterglow Prismatic Wired Controller", 0, XTYPE_XBOXONE },
	{ 0x0e6f, 0x013a, "PDP Xbox One Controller", 0, XTYPE_XBOXONE },
	{ 0x0e6f, 0x0146, "Rock Candy Wired Controller for Xbox One", 0, XTYPE_XBOXONE },
	{ 0x0e6f, 0x0147, "PDP Marvel Xbox One Controller", 0, XTYPE_XBOXONE },
	{ 0x0e6f, 0x015c, "PDP Xbox One Arcade Stick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOXONE },
	{ 0x0e6f, 0x0161, "PDP Xbox One Controller", 0, XTYPE_XBOXONE },
	{ 0x0e6f, 0x0162, "PDP Xbox One Controller", 0, XTYPE_XBOXONE },
	{ 0x0e6f, 0x0163, "PDP Xbox One Controller", 0, XTYPE_XBOXONE },
	{ 0x0e6f, 0x0164, "PDP Battlefield One", 0, XTYPE_XBOXONE },
	{ 0x0e6f, 0x0165, "PDP Titanfall 2", 0, XTYPE_XBOXONE },
	{ 0x0e6f, 0x0201, "Pelican PL-3601 'TSZ' Wired Xbox 360 Controller", 0, XTYPE_XBOX360 },
	{ 0x0e6f, 0x0213, "Afterglow Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
	{ 0x0e6f, 0x021f, "Rock Candy Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
	{ 0x0e6f, 0x0246, "Rock Candy Gamepad for Xbox One 2015", 0, XTYPE_XBOXONE },
	{ 0x0e6f, 0x02a0, "PDP Xbox One Controller", 0, XTYPE_XBOXONE },
	{ 0x0e6f, 0x02a1, "PDP Xbox One Controller", 0, XTYPE_XBOXONE },
	{ 0x0e6f, 0x02a2, "PDP Wired Controller for Xbox One - Crimson Red", 0, XTYPE_XBOXONE },
	{ 0x0e6f, 0x02a4, "PDP Wired Controller for Xbox One - Stealth Series", 0, XTYPE_XBOXONE },
	{ 0x0e6f, 0x02a6, "PDP Wired Controller for Xbox One - Camo Series", 0, XTYPE_XBOXONE },
	{ 0x0e6f, 0x02a7, "PDP Xbox One Controller", 0, XTYPE_XBOXONE },
	{ 0x0e6f, 0x02a8, "PDP Xbox One Controller", 0, XTYPE_XBOXONE },
	{ 0x0e6f, 0x02ab, "PDP Controller for Xbox One", 0, XTYPE_XBOXONE },
	{ 0x0e6f, 0x02ad, "PDP Wired Controller for Xbox One - Stealth Series", 0, XTYPE_XBOXONE },
	{ 0x0e6f, 0x02b3, "Afterglow Prismatic Wired Controller", 0, XTYPE_XBOXONE },
	{ 0x0e6f, 0x02b8, "Afterglow Prismatic Wired Controller", 0, XTYPE_XBOXONE },
	{ 0x0e6f, 0x0301, "Logic3 Controller", 0, XTYPE_XBOX360 },
	{ 0x0e6f, 0x0346, "Rock Candy Gamepad for Xbox One 2016", 0, XTYPE_XBOXONE },
	{ 0x0e6f, 0x0401, "Logic3 Controller", 0, XTYPE_XBOX360 },
	{ 0x0e6f, 0x0413, "Afterglow AX.1 Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
	{ 0x0e6f, 0x0501, "PDP Xbox 360 Controller", 0, XTYPE_XBOX360 },
	{ 0x0e6f, 0xf900, "PDP Afterglow AX.1", 0, XTYPE_XBOX360 },
	{ 0x0e8f, 0x0201, "SmartJoy Frag Xpad/PS2 adaptor", 0, XTYPE_XBOX },
	{ 0x0e8f, 0x3008, "Generic xbox control (dealextreme)", 0, XTYPE_XBOX },
	{ 0x0f0d, 0x000a, "Hori Co. DOA4 FightStick", 0, XTYPE_XBOX360 },
	{ 0x0f0d, 0x000c, "Hori PadEX Turbo", 0, XTYPE_XBOX360 },
	{ 0x0f0d, 0x000d, "Hori Fighting Stick EX2", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x0f0d, 0x0016, "Hori Real Arcade Pro.EX", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x0f0d, 0x001b, "Hori Real Arcade Pro VX", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x0f0d, 0x0063, "Hori Real Arcade Pro Hayabusa (USA) Xbox One", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOXONE },
	{ 0x0f0d, 0x0067, "HORIPAD ONE", 0, XTYPE_XBOXONE },
	{ 0x0f0d, 0x0078, "Hori Real Arcade Pro V Kai Xbox One", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOXONE },
	{ 0x0f30, 0x010b, "Philips Recoil", 0, XTYPE_XBOX },
	{ 0x0f30, 0x0202, "Joytech Advanced Controller", 0, XTYPE_XBOX },
	{ 0x0f30, 0x8888, "BigBen XBMiniPad Controller", 0, XTYPE_XBOX },
	{ 0x102c, 0xff0c, "Joytech Wireless Advanced Controller", 0, XTYPE_XBOX },
	{ 0x1038, 0x1430, "SteelSeries Stratus Duo", 0, XTYPE_XBOX360 },
	{ 0x1038, 0x1431, "SteelSeries Stratus Duo", 0, XTYPE_XBOX360 },
	{ 0x11c9, 0x55f0, "Nacon GC-100XF", 0, XTYPE_XBOX360 },
	{ 0x1209, 0x2882, "Ardwiino Controller", 0, XTYPE_XBOX360 },
	{ 0x12ab, 0x0004, "Honey Bee Xbox360 dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x12ab, 0x0301, "PDP AFTERGLOW AX.1", 0, XTYPE_XBOX360 },
	{ 0x12ab, 0x0303, "Mortal Kombat Klassic FightStick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x12ab, 0x8809, "Xbox DDR dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
	{ 0x1430, 0x4748, "RedOctane Guitar Hero X-plorer", 0, XTYPE_XBOX360 },
	{ 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
	{ 0x1430, 0xf801, "RedOctane Controller", 0, XTYPE_XBOX360 },
	{ 0x146b, 0x0601, "BigBen Interactive XBOX 360 Controller", 0, XTYPE_XBOX360 },
	{ 0x1532, 0x0037, "Razer Sabertooth", 0, XTYPE_XBOX360 },
	{ 0x1532, 0x0a00, "Razer Atrox Arcade Stick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOXONE },
	{ 0x1532, 0x0a03, "Razer Wildcat", 0, XTYPE_XBOXONE },
	{ 0x15e4, 0x3f00, "Power A Mini Pro Elite", 0, XTYPE_XBOX360 },
	{ 0x15e4, 0x3f0a, "Xbox Airflo wired controller", 0, XTYPE_XBOX360 },
	{ 0x15e4, 0x3f10, "Batarang Xbox 360 controller", 0, XTYPE_XBOX360 },
	{ 0x162e, 0xbeef, "Joytech Neo-Se Take2", 0, XTYPE_XBOX360 },
	{ 0x1689, 0xfd00, "Razer Onza Tournament Edition", 0, XTYPE_XBOX360 },
	{ 0x1689, 0xfd01, "Razer Onza Classic Edition", 0, XTYPE_XBOX360 },
	{ 0x1689, 0xfe00, "Razer Sabertooth", 0, XTYPE_XBOX360 },
	{ 0x1949, 0x041a, "Amazon Game Controller", 0, XTYPE_XBOX360 },
	{ 0x1bad, 0x0002, "Harmonix Rock Band Guitar", 0, XTYPE_XBOX360 },
	{ 0x1bad, 0x0003, "Harmonix Rock Band Drumkit", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x1bad, 0x0130, "Ion Drum Rocker", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x1bad, 0xf016, "Mad Catz Xbox 360 Controller", 0, XTYPE_XBOX360 },
	{ 0x1bad, 0xf018, "Mad Catz Street Fighter IV SE Fighting Stick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x1bad, 0xf019, "Mad Catz Brawlstick for Xbox 360", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x1bad, 0xf021, "Mad Cats Ghost Recon FS GamePad", 0, XTYPE_XBOX360 },
	{ 0x1bad, 0xf023, "MLG Pro Circuit Controller (Xbox)", 0, XTYPE_XBOX360 },
	{ 0x1bad, 0xf025, "Mad Catz Call Of Duty", 0, XTYPE_XBOX360 },
	{ 0x1bad, 0xf027, "Mad Catz FPS Pro", 0, XTYPE_XBOX360 },
	{ 0x1bad, 0xf028, "Street Fighter IV FightPad", 0, XTYPE_XBOX360 },
	{ 0x1bad, 0xf02e, "Mad Catz Fightpad", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x1bad, 0xf030, "Mad Catz Xbox 360 MC2 MicroCon Racing Wheel", 0, XTYPE_XBOX360 },
	{ 0x1bad, 0xf036, "Mad Catz MicroCon GamePad Pro", 0, XTYPE_XBOX360 },
	{ 0x1bad, 0xf038, "Street Fighter IV FightStick TE", 0, XTYPE_XBOX360 },
	{ 0x1bad, 0xf039, "Mad Catz MvC2 TE", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x1bad, 0xf03a, "Mad Catz SFxT Fightstick Pro", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x1bad, 0xf03d, "Street Fighter IV Arcade Stick TE - Chun Li", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x1bad, 0xf03e, "Mad Catz MLG FightStick TE", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x1bad, 0xf03f, "Mad Catz FightStick SoulCaliber", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x1bad, 0xf042, "Mad Catz FightStick TES+", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x1bad, 0xf080, "Mad Catz FightStick TE2", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x1bad, 0xf501, "HoriPad EX2 Turbo", 0, XTYPE_XBOX360 },
	{ 0x1bad, 0xf502, "Hori Real Arcade Pro.VX SA", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x1bad, 0xf503, "Hori Fighting Stick VX", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x1bad, 0xf504, "Hori Real Arcade Pro. EX", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x1bad, 0xf505, "Hori Fighting Stick EX2B", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x1bad, 0xf506, "Hori Real Arcade Pro.EX Premium VLX", 0, XTYPE_XBOX360 },
	{ 0x1bad, 0xf900, "Harmonix Xbox 360 Controller", 0, XTYPE_XBOX360 },
	{ 0x1bad, 0xf901, "Gamestop Xbox 360 Controller", 0, XTYPE_XBOX360 },
	{ 0x1bad, 0xf903, "Tron Xbox 360 controller", 0, XTYPE_XBOX360 },
	{ 0x1bad, 0xf904, "PDP Versus Fighting Pad", 0, XTYPE_XBOX360 },
	{ 0x1bad, 0xf906, "MortalKombat FightStick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x1bad, 0xfa01, "MadCatz GamePad", 0, XTYPE_XBOX360 },
	{ 0x1bad, 0xfd00, "Razer Onza TE", 0, XTYPE_XBOX360 },
	{ 0x1bad, 0xfd01, "Razer Onza", 0, XTYPE_XBOX360 },
	{ 0x20d6, 0x2001, "BDA Xbox Series X Wired Controller", 0, XTYPE_XBOXONE },
	{ 0x20d6, 0x2009, "PowerA Enhanced Wired Controller for Xbox Series X|S", 0, XTYPE_XBOXONE },
	{ 0x20d6, 0x281f, "PowerA Wired Controller For Xbox 360", 0, XTYPE_XBOX360 },
	{ 0x2e24, 0x0652, "Hyperkin Duke X-Box One pad", 0, XTYPE_XBOXONE },
	{ 0x24c6, 0x5000, "Razer Atrox Arcade Stick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x24c6, 0x5300, "PowerA MINI PROEX Controller", 0, XTYPE_XBOX360 },
	{ 0x24c6, 0x5303, "Xbox Airflo wired controller", 0, XTYPE_XBOX360 },
	{ 0x24c6, 0x530a, "Xbox 360 Pro EX Controller", 0, XTYPE_XBOX360 },
	{ 0x24c6, 0x531a, "PowerA Pro Ex", 0, XTYPE_XBOX360 },
	{ 0x24c6, 0x5397, "FUS1ON Tournament Controller", 0, XTYPE_XBOX360 },
	{ 0x24c6, 0x541a, "PowerA Xbox One Mini Wired Controller", 0, XTYPE_XBOXONE },
	{ 0x24c6, 0x542a, "Xbox ONE spectra", 0, XTYPE_XBOXONE },
	{ 0x24c6, 0x543a, "PowerA Xbox One wired controller", 0, XTYPE_XBOXONE },
	{ 0x24c6, 0x5500, "Hori XBOX 360 EX 2 with Turbo", 0, XTYPE_XBOX360 },
	{ 0x24c6, 0x5501, "Hori Real Arcade Pro VX-SA", 0, XTYPE_XBOX360 },
	{ 0x24c6, 0x5502, "Hori Fighting Stick VX Alt", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x24c6, 0x5503, "Hori Fighting Edge", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x24c6, 0x5506, "Hori SOULCALIBUR V Stick", 0, XTYPE_XBOX360 },
	{ 0x24c6, 0x550d, "Hori GEM Xbox controller", 0, XTYPE_XBOX360 },
	{ 0x24c6, 0x550e, "Hori Real Arcade Pro V Kai 360", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
	{ 0x24c6, 0x551a, "PowerA FUSION Pro Controller", 0, XTYPE_XBOXONE },
	{ 0x24c6, 0x561a, "PowerA FUSION Controller", 0, XTYPE_XBOXONE },
	{ 0x24c6, 0x5b00, "ThrustMaster Ferrari 458 Racing Wheel", 0, XTYPE_XBOX360 },
	{ 0x24c6, 0x5b02, "Thrustmaster, Inc. GPX Controller", 0, XTYPE_XBOX360 },
	{ 0x24c6, 0x5b03, "Thrustmaster Ferrari 458 Racing Wheel", 0, XTYPE_XBOX360 },
	{ 0x24c6, 0x5d04, "Razer Sabertooth", 0, XTYPE_XBOX360 },
	{ 0x24c6, 0xfafe, "Rock Candy Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
	{ 0x3767, 0x0101, "Fanatec Speedster 3 Forceshock Wheel", 0, XTYPE_XBOX },
    { 0x8555, 0x061c, "Gamesir G4 Pro", 0, XTYPE_XBOX360 },
    { 0x8555, 0x061b, "Gamesir G4 Pro Wireless", 0, XTYPE_XBOX360 },
	{ 0xffff, 0xffff, "Chinese-made Xbox Controller", 0, XTYPE_XBOX },
	{ 0x2563, 0x058d, "OneXPlayer Gamepad", 0, XTYPE_XBOX360 },
	{ 0x0000, 0x0000, "Generic X-Box pad", 0, XTYPE_UNKNOWN }
};

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

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

/* used when dpad is mapped to buttons */
static const signed short xpad_btn_pad[] = {
	BTN_TRIGGER_HAPPY1, BTN_TRIGGER_HAPPY2,		/* d-pad left, right */
	BTN_TRIGGER_HAPPY3, BTN_TRIGGER_HAPPY4,		/* d-pad up, down */
	-1				/* terminating entry */
};

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

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

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

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

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

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

/* The Xbox One controller uses subclass 71 and protocol 208. */
#define XPAD_XBOXONE_VENDOR_PROTOCOL(vend, pr) \
	.match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO, \
	.idVendor = (vend), \
	.bInterfaceClass = USB_CLASS_VENDOR_SPEC, \
	.bInterfaceSubClass = 71, \
	.bInterfaceProtocol = (pr)
#define XPAD_XBOXONE_VENDOR(vend) \
	{ XPAD_XBOXONE_VENDOR_PROTOCOL((vend), 208) }

static const struct usb_device_id xpad_table[] = {
	{ USB_INTERFACE_INFO('X', 'B', 0) },	/* X-Box USB-IF not approved class */
	XPAD_XBOX360_VENDOR(0x0079),		/* GPD Win 2 Controller */
	XPAD_XBOX360_VENDOR(0x044f),		/* Thrustmaster X-Box 360 controllers */
	XPAD_XBOX360_VENDOR(0x045e),		/* Microsoft X-Box 360 controllers */
	XPAD_XBOXONE_VENDOR(0x045e),		/* Microsoft X-Box One controllers */
	XPAD_XBOX360_VENDOR(0x046d),		/* Logitech X-Box 360 style controllers */
	XPAD_XBOX360_VENDOR(0x056e),		/* Elecom JC-U3613M */
	XPAD_XBOX360_VENDOR(0x06a3),		/* Saitek P3600 */
	XPAD_XBOX360_VENDOR(0x0738),		/* Mad Catz X-Box 360 controllers */
	{ USB_DEVICE(0x0738, 0x4540) },		/* Mad Catz Beat Pad */
	XPAD_XBOXONE_VENDOR(0x0738),		/* Mad Catz FightStick TE 2 */
	XPAD_XBOX360_VENDOR(0x07ff),		/* Mad Catz GamePad */
	XPAD_XBOX360_VENDOR(0x0e6f),		/* 0x0e6f X-Box 360 controllers */
	XPAD_XBOXONE_VENDOR(0x0e6f),		/* 0x0e6f X-Box One controllers */
	XPAD_XBOX360_VENDOR(0x0f0d),		/* Hori Controllers */
	XPAD_XBOXONE_VENDOR(0x0f0d),		/* Hori Controllers */
	XPAD_XBOX360_VENDOR(0x1038),		/* SteelSeries Controllers */
	XPAD_XBOX360_VENDOR(0x11c9),		/* Nacon GC100XF */
	XPAD_XBOX360_VENDOR(0x1209),		/* Ardwiino Controllers */
	XPAD_XBOX360_VENDOR(0x12ab),		/* X-Box 360 dance pads */
	XPAD_XBOX360_VENDOR(0x1430),		/* RedOctane X-Box 360 controllers */
	XPAD_XBOX360_VENDOR(0x146b),		/* BigBen Interactive Controllers */
	XPAD_XBOX360_VENDOR(0x1532),		/* Razer Sabertooth */
	XPAD_XBOXONE_VENDOR(0x1532),		/* Razer Wildcat */
	XPAD_XBOX360_VENDOR(0x15e4),		/* Numark X-Box 360 controllers */
	XPAD_XBOX360_VENDOR(0x162e),		/* Joytech X-Box 360 controllers */
	XPAD_XBOX360_VENDOR(0x1689),		/* Razer Onza */
	XPAD_XBOX360_VENDOR(0x1949),		/* Amazon controllers */
	XPAD_XBOX360_VENDOR(0x1bad),		/* Harminix Rock Band Guitar and Drums */
	XPAD_XBOX360_VENDOR(0x20d6),		/* PowerA Controllers */
	XPAD_XBOXONE_VENDOR(0x20d6),		/* PowerA Controllers */
	XPAD_XBOX360_VENDOR(0x24c6),		/* PowerA Controllers */
	XPAD_XBOXONE_VENDOR(0x24c6),		/* PowerA Controllers */
	XPAD_XBOXONE_VENDOR(0x2e24),		/* Hyperkin Duke X-Box One pad */
	XPAD_XBOX360_VENDOR(0x2f24),		/* GameSir Controllers */
	XPAD_XBOX360_VENDOR(0x3285),		/* Nacon Controllers */
	XPAD_XBOX360_VENDOR(0x2563),		/* OneXPlayer Gamepad */
	XPAD_XBOX360_VENDOR(0x8555),
	{ }
};

MODULE_DEVICE_TABLE(usb, xpad_table);

struct xboxone_init_packet {
	u16 idVendor;
	u16 idProduct;
	const u8 *data;
	u8 len;
};

#define XBOXONE_INIT_PKT(_vid, _pid, _data)		\
	{						\
		.idVendor	= (_vid),		\
		.idProduct	= (_pid),		\
		.data		= (_data),		\
		.len		= ARRAY_SIZE(_data),	\
	}


/*
 * This packet is required for all Xbox One pads with 2015
 * or later firmware installed (or present from the factory).
 */
static const u8 xboxone_fw2015_init[] = {
	0x05, 0x20, 0x00, 0x01, 0x00
};

/*
 * This packet is required for Xbox One S (0x045e:0x02ea)
 * and Xbox One Elite Series 2 (0x045e:0x0b00) pads to
 * initialize the controller that was previously used in
 * Bluetooth mode.
 */
static const u8 xboxone_s_init[] = {
	0x05, 0x20, 0x00, 0x0f, 0x06
};

/*
 * This packet is required for the Titanfall 2 Xbox One pads
 * (0x0e6f:0x0165) to finish initialization and for Hori pads
 * (0x0f0d:0x0067) to make the analog sticks work.
 */
static const u8 xboxone_hori_init[] = {
	0x01, 0x20, 0x00, 0x09, 0x00, 0x04, 0x20, 0x3a,
	0x00, 0x00, 0x00, 0x80, 0x00
};

/*
 * This packet is required for most (all?) of the PDP pads to start
 * sending input reports. These pads include: (0x0e6f:0x02ab),
 * (0x0e6f:0x02a4), (0x0e6f:0x02a6).
 */
static const u8 xboxone_pdp_init1[] = {
	0x0a, 0x20, 0x00, 0x03, 0x00, 0x01, 0x14
};

/*
 * This packet is required for most (all?) of the PDP pads to start
 * sending input reports. These pads include: (0x0e6f:0x02ab),
 * (0x0e6f:0x02a4), (0x0e6f:0x02a6).
 */
static const u8 xboxone_pdp_init2[] = {
	0x06, 0x20, 0x00, 0x02, 0x01, 0x00
};

/*
 * A specific rumble packet is required for some PowerA pads to start
 * sending input reports. One of those pads is (0x24c6:0x543a).
 */
static const u8 xboxone_rumblebegin_init[] = {
	0x09, 0x00, 0x00, 0x09, 0x00, 0x0F, 0x00, 0x00,
	0x1D, 0x1D, 0xFF, 0x00, 0x00
};

/*
 * A rumble packet with zero FF intensity will immediately
 * terminate the rumbling required to init PowerA pads.
 * This should happen fast enough that the motors don't
 * spin up to enough speed to actually vibrate the gamepad.
 */
static const u8 xboxone_rumbleend_init[] = {
	0x09, 0x00, 0x00, 0x09, 0x00, 0x0F, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00
};

/*
 * This specifies the selection of init packets that a gamepad
 * will be sent on init *and* the order in which they will be
 * sent. The correct sequence number will be added when the
 * packet is going to be sent.
 */
static const struct xboxone_init_packet xboxone_init_packets[] = {
	XBOXONE_INIT_PKT(0x0e6f, 0x0165, xboxone_hori_init),
	XBOXONE_INIT_PKT(0x0f0d, 0x0067, xboxone_hori_init),
	XBOXONE_INIT_PKT(0x0000, 0x0000, xboxone_fw2015_init),
	XBOXONE_INIT_PKT(0x045e, 0x02ea, xboxone_s_init),
	XBOXONE_INIT_PKT(0x045e, 0x0b00, xboxone_s_init),
	XBOXONE_INIT_PKT(0x0e6f, 0x0000, xboxone_pdp_init1),
	XBOXONE_INIT_PKT(0x0e6f, 0x0000, xboxone_pdp_init2),
	XBOXONE_INIT_PKT(0x24c6, 0x541a, xboxone_rumblebegin_init),
	XBOXONE_INIT_PKT(0x24c6, 0x542a, xboxone_rumblebegin_init),
	XBOXONE_INIT_PKT(0x24c6, 0x543a, xboxone_rumblebegin_init),
	XBOXONE_INIT_PKT(0x24c6, 0x541a, xboxone_rumbleend_init),
	XBOXONE_INIT_PKT(0x24c6, 0x542a, xboxone_rumbleend_init),
	XBOXONE_INIT_PKT(0x24c6, 0x543a, xboxone_rumbleend_init),
};

struct xpad_output_packet {
	u8 data[XPAD_PKT_LEN];
	u8 len;
	bool pending;
};

#define XPAD_OUT_CMD_IDX	0
#define XPAD_OUT_FF_IDX		1
#define XPAD_OUT_LED_IDX	(1 + IS_ENABLED(CONFIG_JOYSTICK_XPAD_FF))
#define XPAD_NUM_OUT_PACKETS	(1 + \
				 IS_ENABLED(CONFIG_JOYSTICK_XPAD_FF) + \
				 IS_ENABLED(CONFIG_JOYSTICK_XPAD_LEDS))

struct usb_xpad {
	struct input_dev *dev;		/* input device interface */
	struct input_dev __rcu *x360w_dev;
	struct usb_device *udev;	/* usb device */
	struct usb_interface *intf;	/* usb interface */

	bool pad_present;
	bool input_created;

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

	struct urb *irq_out;		/* urb for interrupt out report */
	struct usb_anchor irq_out_anchor;
	bool irq_out_active;		/* we must not use an active URB */
	u8 odata_serial;		/* serial number for xbox one protocol */
	unsigned char *odata;		/* output data */
	dma_addr_t odata_dma;
	spinlock_t odata_lock;

	struct xpad_output_packet out_packets[XPAD_NUM_OUT_PACKETS];
	int last_out_packet;
	int init_seq;

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

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

	int mapping;			/* map d-pad to buttons or to axes */
	int xtype;			/* type of xbox device */
	int pad_nr;			/* the order x360 pads were attached */
	const char *name;		/* name of the device */
	struct work_struct work;	/* init/remove device from callback */
	time64_t mode_btn_down_ts;
};

static int xpad_init_input(struct usb_xpad *xpad);
static void xpad_deinit_input(struct usb_xpad *xpad);
static void xpadone_ack_mode_report(struct usb_xpad *xpad, u8 seq_num);
static void xpad360w_poweroff_controller(struct usb_xpad *xpad);

/*
 *	xpad_process_packet
 *
 *	Completes a request by converting the data into events for the
 *	input subsystem.
 *
 *	The used report descriptor was taken from ITO Takayukis website:
 *	 http://euc.jp/periphs/xbox-controller.ja.html
 */
static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
{
	struct input_dev *dev = xpad->dev;

	if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
		/* left stick */
		input_report_abs(dev, ABS_X,
				 (__s16) le16_to_cpup((__le16 *)(data + 12)));
		input_report_abs(dev, ABS_Y,
				 ~(__s16) le16_to_cpup((__le16 *)(data + 14)));

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

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

	/* digital pad */
	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
		/* dpad as buttons (left, right, up, down) */
		input_report_key(dev, BTN_TRIGGER_HAPPY1, data[2] & 0x04);
		input_report_key(dev, BTN_TRIGGER_HAPPY2, data[2] & 0x08);
		input_report_key(dev, BTN_TRIGGER_HAPPY3, data[2] & 0x01);
		input_report_key(dev, BTN_TRIGGER_HAPPY4, data[2] & 0x02);
	} else {
		input_report_abs(dev, ABS_HAT0X,
				 !!(data[2] & 0x08) - !!(data[2] & 0x04));
		input_report_abs(dev, ABS_HAT0Y,
				 !!(data[2] & 0x02) - !!(data[2] & 0x01));
	}

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

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

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

	input_sync(dev);
}

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

static void xpad360_process_packet(struct usb_xpad *xpad, struct input_dev *dev,
				   u16 cmd, unsigned char *data)
{
	/* valid pad data */
	if (data[0] != 0x00)
		return;

	/* digital pad */
	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
		/* dpad as buttons (left, right, up, down) */
		input_report_key(dev, BTN_TRIGGER_HAPPY1, data[2] & 0x04);
		input_report_key(dev, BTN_TRIGGER_HAPPY2, data[2] & 0x08);
		input_report_key(dev, BTN_TRIGGER_HAPPY3, data[2] & 0x01);
		input_report_key(dev, BTN_TRIGGER_HAPPY4, data[2] & 0x02);
	}

	/*
	 * This should be a simple else block. However historically
	 * xbox360w has mapped DPAD to buttons while xbox360 did not. This
	 * made no sense, but now we can not just switch back and have to
	 * support both behaviors.
	 */
	if (!(xpad->mapping & MAP_DPAD_TO_BUTTONS) ||
	    xpad->xtype == XTYPE_XBOX360W) {
		input_report_abs(dev, ABS_HAT0X,
				 !!(data[2] & 0x08) - !!(data[2] & 0x04));
		input_report_abs(dev, ABS_HAT0Y,
				 !!(data[2] & 0x02) - !!(data[2] & 0x01));
	}

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

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

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

	if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
		/* left stick */
		input_report_abs(dev, ABS_X,
				 (__s16) le16_to_cpup((__le16 *)(data + 6)));
		input_report_abs(dev, ABS_Y,
				 ~(__s16) le16_to_cpup((__le16 *)(data + 8)));

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

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

	input_sync(dev);

	/* XBOX360W controllers can't be turned off without driver assistance */
	if (xpad->xtype == XTYPE_XBOX360W) {
		if (xpad->mode_btn_down_ts > 0
		&& xpad->pad_present
		&& (ktime_get_seconds() - xpad->mode_btn_down_ts) >= 5) {
			xpad360w_poweroff_controller(xpad);
			xpad->mode_btn_down_ts = 0;
			return;
		}

		/* mode button down/up */
		if (data[3] & 0x04)
			xpad->mode_btn_down_ts = ktime_get_seconds();
		else
			xpad->mode_btn_down_ts = 0;
	}
}

static void xpad_presence_work(struct work_struct *work)
{
	struct usb_xpad *xpad = container_of(work, struct usb_xpad, work);
	int error;

	if (xpad->pad_present) {
		error = xpad_init_input(xpad);
		if (error) {
			/* complain only, not much else we can do here */
			dev_err(&xpad->dev->dev,
				"unable to init device: %d\n", error);
		} else {
			rcu_assign_pointer(xpad->x360w_dev, xpad->dev);
		}
	} else {
		RCU_INIT_POINTER(xpad->x360w_dev, NULL);
		synchronize_rcu();
		/*
		 * Now that we are sure xpad360w_process_packet is not
		 * using input device we can get rid of it.
		 */
		xpad_deinit_input(xpad);
	}
}

/*
 * xpad360w_process_packet
 *
 * Completes a request by converting the data into events for the
 * input subsystem. It is version for xbox 360 wireless controller.
 *
 * Byte.Bit
 * 00.1 - Status change: The controller or headset has connected/disconnected
 *                       Bits 01.7 and 01.6 are valid
 * 01.7 - Controller present
 * 01.6 - Headset present
 * 01.1 - Pad state (Bytes 4+) valid
 *
 */
static void xpad360w_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
{
	struct input_dev *dev;
	bool present;

	/* Presence change */
	if (data[0] & 0x08) {
		present = (data[1] & 0x80) != 0;

		if (xpad->pad_present != present) {
			xpad->pad_present = present;
			schedule_work(&xpad->work);
		}
	}

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

	rcu_read_lock();
	dev = rcu_dereference(xpad->x360w_dev);
	if (dev)
		xpad360_process_packet(xpad, dev, cmd, &data[4]);
	rcu_read_unlock();
}

/*
 *	xpadone_process_packet
 *
 *	Completes a request by converting the data into events for the
 *	input subsystem. This version is for the Xbox One controller.
 *
 *	The report format was gleaned from
 *	https://github.com/kylelemons/xbox/blob/master/xbox.go
 */
static void xpadone_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
{
	struct input_dev *dev = xpad->dev;

	/* the xbox button has its own special report */
	if (data[0] == 0X07) {
		/*
		 * The Xbox One S controller requires these reports to be
		 * acked otherwise it continues sending them forever and
		 * won't report further mode button events.
		 */
		if (data[1] == 0x30)
			xpadone_ack_mode_report(xpad, data[2]);

		input_report_key(dev, BTN_MODE, data[4] & 0x01);
		input_sync(dev);
		return;
	}
	/* check invalid packet */
	else if (data[0] != 0X20)
		return;

	/* menu/view buttons */
	input_report_key(dev, BTN_START,  data[4] & 0x04);
	input_report_key(dev, BTN_SELECT, data[4] & 0x08);
	if (xpad->mapping & MAP_SELECT_BUTTON)
		input_report_key(dev, KEY_RECORD, data[22] & 0x01);

	/* buttons A,B,X,Y */
	input_report_key(dev, BTN_A,	data[4] & 0x10);
	input_report_key(dev, BTN_B,	data[4] & 0x20);
	input_report_key(dev, BTN_X,	data[4] & 0x40);
	input_report_key(dev, BTN_Y,	data[4] & 0x80);

	/* digital pad */
	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
		/* dpad as buttons (left, right, up, down) */
		input_report_key(dev, BTN_TRIGGER_HAPPY1, data[5] & 0x04);
		input_report_key(dev, BTN_TRIGGER_HAPPY2, data[5] & 0x08);
		input_report_key(dev, BTN_TRIGGER_HAPPY3, data[5] & 0x01);
		input_report_key(dev, BTN_TRIGGER_HAPPY4, data[5] & 0x02);
	} else {
		input_report_abs(dev, ABS_HAT0X,
				 !!(data[5] & 0x08) - !!(data[5] & 0x04));
		input_report_abs(dev, ABS_HAT0Y,
				 !!(data[5] & 0x02) - !!(data[5] & 0x01));
	}

	/* TL/TR */
	input_report_key(dev, BTN_TL,	data[5] & 0x10);
	input_report_key(dev, BTN_TR,	data[5] & 0x20);

	/* stick press left/right */
	input_report_key(dev, BTN_THUMBL, data[5] & 0x40);
	input_report_key(dev, BTN_THUMBR, data[5] & 0x80);

	if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
		/* left stick */
		input_report_abs(dev, ABS_X,
				 (__s16) le16_to_cpup((__le16 *)(data + 10)));
		input_report_abs(dev, ABS_Y,
				 ~(__s16) le16_to_cpup((__le16 *)(data + 12)));

		/* right stick */
		input_report_abs(dev, ABS_RX,
				 (__s16) le16_to_cpup((__le16 *)(data + 14)));
		input_report_abs(dev, ABS_RY,
				 ~(__s16) le16_to_cpup((__le16 *)(data + 16)));
	}

	/* triggers left/right */
	if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
		input_report_key(dev, BTN_TL2,
				 (__u16) le16_to_cpup((__le16 *)(data + 6)));
		input_report_key(dev, BTN_TR2,
				 (__u16) le16_to_cpup((__le16 *)(data + 8)));
	} else {
		input_report_abs(dev, ABS_Z,
				 (__u16) le16_to_cpup((__le16 *)(data + 6)));
		input_report_abs(dev, ABS_RZ,
				 (__u16) le16_to_cpup((__le16 *)(data + 8)));
	}

	input_sync(dev);
}

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

	status = urb->status;

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

#if defined(DEBUG_VERBOSE)
	/* If you set rowsize to larger than 32 it defaults to 16?
	 * Otherwise I would set it to XPAD_PKT_LEN                  V
	 */
	print_hex_dump(KERN_DEBUG, "xpad-dbg: ", DUMP_PREFIX_OFFSET, 32, 1, xpad->idata, XPAD_PKT_LEN, 0);
#endif

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

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

/* Callers must hold xpad->odata_lock spinlock */
static bool xpad_prepare_next_init_packet(struct usb_xpad *xpad)
{
	const struct xboxone_init_packet *init_packet;

	if (xpad->xtype != XTYPE_XBOXONE)
		return false;

	/* Perform initialization sequence for Xbox One pads that require it */
	while (xpad->init_seq < ARRAY_SIZE(xboxone_init_packets)) {
		init_packet = &xboxone_init_packets[xpad->init_seq++];

		if (init_packet->idVendor != 0 &&
		    init_packet->idVendor != xpad->dev->id.vendor)
			continue;

		if (init_packet->idProduct != 0 &&
		    init_packet->idProduct != xpad->dev->id.product)
			continue;

		/* This packet applies to our device, so prepare to send it */
		memcpy(xpad->odata, init_packet->data, init_packet->len);
		xpad->irq_out->transfer_buffer_length = init_packet->len;

		/* Update packet with current sequence number */
		xpad->odata[2] = xpad->odata_serial++;
		return true;
	}

	return false;
}

/* Callers must hold xpad->odata_lock spinlock */
static bool xpad_prepare_next_out_packet(struct usb_xpad *xpad)
{
	struct xpad_output_packet *pkt, *packet = NULL;
	int i;

	/* We may have init packets to send before we can send user commands */
	if (xpad_prepare_next_init_packet(xpad))
		return true;

	for (i = 0; i < XPAD_NUM_OUT_PACKETS; i++) {
		if (++xpad->last_out_packet >= XPAD_NUM_OUT_PACKETS)
			xpad->last_out_packet = 0;

		pkt = &xpad->out_packets[xpad->last_out_packet];
		if (pkt->pending) {
			dev_dbg(&xpad->intf->dev,
				"%s - found pending output packet %d\n",
				__func__, xpad->last_out_packet);
			packet = pkt;
			break;
		}
	}

	if (packet) {
		memcpy(xpad->odata, packet->data, packet->len);
		xpad->irq_out->transfer_buffer_length = packet->len;
		packet->pending = false;
		return true;
	}

	return false;
}

/* Callers must hold xpad->odata_lock spinlock */
static int xpad_try_sending_next_out_packet(struct usb_xpad *xpad)
{
	int error;

	if (!xpad->irq_out_active && xpad_prepare_next_out_packet(xpad)) {
		usb_anchor_urb(xpad->irq_out, &xpad->irq_out_anchor);
		error = usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
		if (error) {
			dev_err(&xpad->intf->dev,
				"%s - usb_submit_urb failed with result %d\n",
				__func__, error);
			usb_unanchor_urb(xpad->irq_out);
			return -EIO;
		}

		xpad->irq_out_active = true;
	}

	return 0;
}

static void xpad_irq_out(struct urb *urb)
{
	struct usb_xpad *xpad = urb->context;
	struct device *dev = &xpad->intf->dev;
	int status = urb->status;
	int error;
	unsigned long flags;

	spin_lock_irqsave(&xpad->odata_lock, flags);

	switch (status) {
	case 0:
		/* success */
		xpad->irq_out_active = xpad_prepare_next_out_packet(xpad);
		break;

	case -ECONNRESET:
	case -ENOENT:
	case -ESHUTDOWN:
		/* this urb is terminated, clean up */
		dev_dbg(dev, "%s - urb shutting down with status: %d\n",
			__func__, status);
		xpad->irq_out_active = false;
		break;

	default:
		dev_dbg(dev, "%s - nonzero urb status received: %d\n",
			__func__, status);
		break;
	}

	if (xpad->irq_out_active) {
		usb_anchor_urb(urb, &xpad->irq_out_anchor);
		error = usb_submit_urb(urb, GFP_ATOMIC);
		if (error) {
			dev_err(dev,
				"%s - usb_submit_urb failed with result %d\n",
				__func__, error);
			usb_unanchor_urb(urb);
			xpad->irq_out_active = false;
		}
	}

	spin_unlock_irqrestore(&xpad->odata_lock, flags);
}

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

	if (xpad->xtype == XTYPE_UNKNOWN)
		return 0;

	init_usb_anchor(&xpad->irq_out_anchor);

	xpad->odata = usb_alloc_coherent(xpad->udev, XPAD_PKT_LEN,
					 GFP_KERNEL, &xpad->odata_dma);
	if (!xpad->odata)
		return -ENOMEM;

	spin_lock_init(&xpad->odata_lock);

	xpad->irq_out = usb_alloc_urb(0, GFP_KERNEL);
	if (!xpad->irq_out) {
		error = -ENOMEM;
		goto err_free_coherent;
	}

	usb_fill_int_urb(xpad->irq_out, xpad->udev,
			 usb_sndintpipe(xpad->udev, ep_irq_out->bEndpointAddress),
			 xpad->odata, XPAD_PKT_LEN,
			 xpad_irq_out, xpad, ep_irq_out->bInterval);
	xpad->irq_out->transfer_dma = xpad->odata_dma;
	xpad->irq_out->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;

	return 0;

err_free_coherent:
	usb_free_coherent(xpad->udev, XPAD_PKT_LEN, xpad->odata, xpad->odata_dma);
	return error;
}

static void xpad_stop_output(struct usb_xpad *xpad)
{
	if (xpad->xtype != XTYPE_UNKNOWN) {
		if (!usb_wait_anchor_empty_timeout(&xpad->irq_out_anchor,
						   5000)) {
			dev_warn(&xpad->intf->dev,
				 "timed out waiting for output URB to complete, killing\n");
			usb_kill_anchored_urbs(&xpad->irq_out_anchor);
		}
	}
}

static void xpad_deinit_output(struct usb_xpad *xpad)
{
	if (xpad->xtype != XTYPE_UNKNOWN) {
		usb_free_urb(xpad->irq_out);
		usb_free_coherent(xpad->udev, XPAD_PKT_LEN,
				xpad->odata, xpad->odata_dma);
	}
}

static int xpad_inquiry_pad_presence(struct usb_xpad *xpad)
{
	struct xpad_output_packet *packet =
			&xpad->out_packets[XPAD_OUT_CMD_IDX];
	unsigned long flags;
	int retval;

	spin_lock_irqsave(&xpad->odata_lock, flags);

	packet->data[0] = 0x08;
	packet->data[1] = 0x00;
	packet->data[2] = 0x0F;
	packet->data[3] = 0xC0;
	packet->data[4] = 0x00;
	packet->data[5] = 0x00;
	packet->data[6] = 0x00;
	packet->data[7] = 0x00;
	packet->data[8] = 0x00;
	packet->data[9] = 0x00;
	packet->data[10] = 0x00;
	packet->data[11] = 0x00;
	packet->len = 12;
	packet->pending = true;

	/* Reset the sequence so we send out presence first */
	xpad->last_out_packet = -1;
	retval = xpad_try_sending_next_out_packet(xpad);

	spin_unlock_irqrestore(&xpad->odata_lock, flags);

	return retval;
}

static int xpad_start_xbox_one(struct usb_xpad *xpad)
{
	unsigned long flags;
	int retval;

	spin_lock_irqsave(&xpad->odata_lock, flags);

	/*
	 * Begin the init sequence by attempting to send a packet.
	 * We will cycle through the init packet sequence before
	 * sending any packets from the output ring.
	 */
	xpad->init_seq = 0;
	retval = xpad_try_sending_next_out_packet(xpad);

	spin_unlock_irqrestore(&xpad->odata_lock, flags);

	return retval;
}

static int xpad_start_xbox_360(struct usb_xpad *xpad)
{
	int status;

	char *data = kzalloc(20, GFP_KERNEL);

	int TIMEOUT = 100;

	/*
	this init sequence is needed for the gamesir g3w controller
	and for shanwan controllers in xpad mode.
	Unfortunately, in this mode they identify as 0x045e, 0x028e, so we
	have to inspect the manufacturer string.
	Sending this sequence to other controllers will break initialization.
	*/
	bool is_shanwan = strcasecmp("shanwan", xpad->udev->manufacturer) == 0;
	if ((xpad->dev->id.vendor != 0x05ac ||
	     xpad->dev->id.product != 0x055b) &&
	    !is_shanwan) {
		status = 0;
		goto err_free_ctrl_data;
	}

	status = usb_control_msg(xpad->udev,
		usb_rcvctrlpipe(xpad->udev, 0),
		0x1, 0xc1,
		cpu_to_le16(0x100), cpu_to_le16(0x0), data, cpu_to_le16(20),
		TIMEOUT);

#ifdef DEBUG
	dev_dbg(&xpad->intf->dev,
		"%s - control message 1 returned %d\n", __func__, status);
#endif

	if (status < 0) {
		goto err_free_ctrl_data;
	}
#ifdef DEBUG
	else {
		print_hex_dump(KERN_DEBUG, "xpad-dbg: ", DUMP_PREFIX_OFFSET, 32, 1, data, 20, 0);
	}
#endif

	status = usb_control_msg(xpad->udev,
		usb_rcvctrlpipe(xpad->udev, 0),
		0x1, 0xc1,
		cpu_to_le16(0x0), cpu_to_le16(0x0), data, cpu_to_le16(8),
		TIMEOUT);
#ifdef DEBUG
	dev_dbg(&xpad->intf->dev,
		"%s - control message 2 returned %d\n", __func__, status);
#endif

	if (status < 0) {
		goto err_free_ctrl_data;
	}
#ifdef DEBUG
	else {
		print_hex_dump(KERN_DEBUG, "xpad-dbg: ", DUMP_PREFIX_OFFSET, 32, 1, data, 8, 0);
	}
#endif

	status = usb_control_msg(xpad->udev,
		usb_rcvctrlpipe(xpad->udev, 0),
		0x1, 0xc0,
		cpu_to_le16(0x0), cpu_to_le16(0x0), data, cpu_to_le16(4),
		TIMEOUT);
#ifdef DEBUG
	dev_dbg(&xpad->intf->dev,
		"%s - control message 3 returned %d\n", __func__, status);
#endif

	if (status < 0) {
		goto err_free_ctrl_data;
	}
#ifdef DEBUG
	else {
		print_hex_dump(KERN_DEBUG, "xpad-dbg: ", DUMP_PREFIX_OFFSET, 32, 1, data, 4, 0);
	}
#endif

	status = 0;

err_free_ctrl_data:
	kfree(data);
	return status;
}

static void xpadone_ack_mode_report(struct usb_xpad *xpad, u8 seq_num)
{
	unsigned long flags;
	struct xpad_output_packet *packet =
			&xpad->out_packets[XPAD_OUT_CMD_IDX];
	static const u8 mode_report_ack[] = {
		0x01, 0x20, 0x00, 0x09, 0x00, 0x07, 0x20, 0x02,
		0x00, 0x00, 0x00, 0x00, 0x00
	};

	spin_lock_irqsave(&xpad->odata_lock, flags);

	packet->len = sizeof(mode_report_ack);
	memcpy(packet->data, mode_report_ack, packet->len);
	packet->data[2] = seq_num;
	packet->pending = true;

	/* Reset the sequence so we send out the ack now */
	xpad->last_out_packet = -1;
	xpad_try_sending_next_out_packet(xpad);

	spin_unlock_irqrestore(&xpad->odata_lock, flags);
}

#ifdef CONFIG_JOYSTICK_XPAD_FF
static int xpad_play_effect(struct input_dev *dev, void *data, struct ff_effect *effect)
{
	struct usb_xpad *xpad = input_get_drvdata(dev);
	struct xpad_output_packet *packet = &xpad->out_packets[XPAD_OUT_FF_IDX];
	__u16 strong;
	__u16 weak;
	int retval;
	unsigned long flags;

	if (effect->type != FF_RUMBLE)
		return 0;

	strong = effect->u.rumble.strong_magnitude;
	weak = effect->u.rumble.weak_magnitude;

	spin_lock_irqsave(&xpad->odata_lock, flags);

	switch (xpad->xtype) {
	case XTYPE_XBOX:
		packet->data[0] = 0x00;
		packet->data[1] = 0x06;
		packet->data[2] = 0x00;
		packet->data[3] = strong / 256;	/* left actuator */
		packet->data[4] = 0x00;
		packet->data[5] = weak / 256;	/* right actuator */
		packet->len = 6;
		packet->pending = true;
		break;

	case XTYPE_XBOX360:
		packet->data[0] = 0x00;
		packet->data[1] = 0x08;
		packet->data[2] = 0x00;
		packet->data[3] = strong / 256;  /* left actuator? */
		packet->data[4] = weak / 256;	/* right actuator? */
		packet->data[5] = 0x00;
		packet->data[6] = 0x00;
		packet->data[7] = 0x00;
		packet->len = 8;
		packet->pending = true;
		break;

	case XTYPE_XBOX360W:
		packet->data[0] = 0x00;
		packet->data[1] = 0x01;
		packet->data[2] = 0x0F;
		packet->data[3] = 0xC0;
		packet->data[4] = 0x00;
		packet->data[5] = strong / 256;
		packet->data[6] = weak / 256;
		packet->data[7] = 0x00;
		packet->data[8] = 0x00;
		packet->data[9] = 0x00;
		packet->data[10] = 0x00;
		packet->data[11] = 0x00;
		packet->len = 12;
		packet->pending = true;
		break;

	case XTYPE_XBOXONE:
		packet->data[0] = 0x09; /* activate rumble */
		packet->data[1] = 0x00;
		packet->data[2] = xpad->odata_serial++;
		packet->data[3] = 0x09;
		packet->data[4] = 0x00;
		packet->data[5] = 0x0F;
		packet->data[6] = 0x00;
		packet->data[7] = 0x00;
		packet->data[8] = strong / 512;	/* left actuator */
		packet->data[9] = weak / 512;	/* right actuator */
		packet->data[10] = 0xFF; /* on period */
		packet->data[11] = 0x00; /* off period */
		packet->data[12] = 0xFF; /* repeat count */
		packet->len = 13;
		packet->pending = true;
		break;

	default:
		dev_dbg(&xpad->dev->dev,
			"%s - rumble command sent to unsupported xpad type: %d\n",
			__func__, xpad->xtype);
		retval = -EINVAL;
		goto out;
	}

	retval = xpad_try_sending_next_out_packet(xpad);

out:
	spin_unlock_irqrestore(&xpad->odata_lock, flags);
	return retval;
}

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

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

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

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

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

static DEFINE_IDA(xpad_pad_seq);

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

/*
 * set the LEDs on Xbox360 / Wireless Controllers
 * @param command
 *  0: off
 *  1: all blink, then previous setting
 *  2: 1/top-left blink, then on
 *  3: 2/top-right blink, then on
 *  4: 3/bottom-left blink, then on
 *  5: 4/bottom-right blink, then on
 *  6: 1/top-left on
 *  7: 2/top-right on
 *  8: 3/bottom-left on
 *  9: 4/bottom-right on
 * 10: rotate
 * 11: blink, based on previous setting
 * 12: slow blink, based on previous setting
 * 13: rotate with two lights
 * 14: persistent slow all blink
 * 15: blink once, then previous setting
 */
static void xpad_send_led_command(struct usb_xpad *xpad, int command)
{
	struct xpad_output_packet *packet =
			&xpad->out_packets[XPAD_OUT_LED_IDX];
	unsigned long flags;

	command %= 16;

	spin_lock_irqsave(&xpad->odata_lock, flags);

	switch (xpad->xtype) {
	case XTYPE_XBOX360:
		packet->data[0] = 0x01;
		packet->data[1] = 0x03;
		packet->data[2] = command;
		packet->len = 3;
		packet->pending = true;
		break;

	case XTYPE_XBOX360W:
		packet->data[0] = 0x00;
		packet->data[1] = 0x00;
		packet->data[2] = 0x08;
		packet->data[3] = 0x40 + command;
		packet->data[4] = 0x00;
		packet->data[5] = 0x00;
		packet->data[6] = 0x00;
		packet->data[7] = 0x00;
		packet->data[8] = 0x00;
		packet->data[9] = 0x00;
		packet->data[10] = 0x00;
		packet->data[11] = 0x00;
		packet->len = 12;
		packet->pending = true;
		break;
	}

	xpad_try_sending_next_out_packet(xpad);

	spin_unlock_irqrestore(&xpad->odata_lock, flags);
}

/*
 * Light up the segment corresponding to the pad number on
 * Xbox 360 Controllers.
 */
static void xpad_identify_controller(struct usb_xpad *xpad)
{
	led_set_brightness(&xpad->led->led_cdev, (xpad->pad_nr % 4) + 2);
}

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

	xpad_send_led_command(xpad_led->xpad, value);
}

static int xpad_led_probe(struct usb_xpad *xpad)
{
	struct xpad_led *led;
	struct led_classdev *led_cdev;
	int error;

	if (xpad->xtype != XTYPE_XBOX360 && xpad->xtype != XTYPE_XBOX360W)
		return 0;

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

	xpad->pad_nr = ida_simple_get(&xpad_pad_seq, 0, 0, GFP_KERNEL);
	if (xpad->pad_nr < 0) {
		error = xpad->pad_nr;
		goto err_free_mem;
	}

	snprintf(led->name, sizeof(led->name), "xpad%d", xpad->pad_nr);
	led->xpad = xpad;

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

	error = led_classdev_register(&xpad->udev->dev, led_cdev);
	if (error)
		goto err_free_id;

	xpad_identify_controller(xpad);

	return 0;

err_free_id:
	ida_simple_remove(&xpad_pad_seq, xpad->pad_nr);
err_free_mem:
	kfree(led);
	xpad->led = NULL;
	return error;
}

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

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

static int xpad_start_input(struct usb_xpad *xpad)
{
	int error;

	if (xpad->xtype == XTYPE_XBOX360) {
		error = xpad_start_xbox_360(xpad);
		if (error)
			return error;
	}

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

	if (xpad->xtype == XTYPE_XBOXONE) {
		error = xpad_start_xbox_one(xpad);
		if (error) {
			usb_kill_urb(xpad->irq_in);
			return error;
		}
	}

	return 0;
}

static void xpad_stop_input(struct usb_xpad *xpad)
{
	usb_kill_urb(xpad->irq_in);
}

static void xpad360w_poweroff_controller(struct usb_xpad *xpad)
{
	unsigned long flags;
	struct xpad_output_packet *packet =
			&xpad->out_packets[XPAD_OUT_CMD_IDX];

	spin_lock_irqsave(&xpad->odata_lock, flags);

	packet->data[0] = 0x00;
	packet->data[1] = 0x00;
	packet->data[2] = 0x08;
	packet->data[3] = 0xC0;
	packet->data[4] = 0x00;
	packet->data[5] = 0x00;
	packet->data[6] = 0x00;
	packet->data[7] = 0x00;
	packet->data[8] = 0x00;
	packet->data[9] = 0x00;
	packet->data[10] = 0x00;
	packet->data[11] = 0x00;
	packet->len = 12;
	packet->pending = true;

	/* Reset the sequence so we send out poweroff now */
	xpad->last_out_packet = -1;
	xpad_try_sending_next_out_packet(xpad);

	spin_unlock_irqrestore(&xpad->odata_lock, flags);
}

static int xpad360w_start_input(struct usb_xpad *xpad)
{
	int error;

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

	/*
	 * Send presence packet.
	 * This will force the controller to resend connection packets.
	 * This is useful in the case we activate the module after the
	 * adapter has been plugged in, as it won't automatically
	 * send us info about the controllers.
	 */
	error = xpad_inquiry_pad_presence(xpad);
	if (error) {
		usb_kill_urb(xpad->irq_in);
		return error;
	}

	return 0;
}

static void xpad360w_stop_input(struct usb_xpad *xpad)
{
	usb_kill_urb(xpad->irq_in);

	/* Make sure we are done with presence work if it was scheduled */
	flush_work(&xpad->work);
}

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

	return xpad_start_input(xpad);
}

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

	xpad_stop_input(xpad);
}

static void xpad_set_up_abs(struct input_dev *input_dev, signed short abs)
{
	struct usb_xpad *xpad = input_get_drvdata(input_dev);

	switch (abs) {
	case ABS_X:
	case ABS_Y:
	case ABS_RX:
	case ABS_RY:	/* the two sticks */
		input_set_abs_params(input_dev, abs, -32768, 32767, 16, 128);
		break;
	case ABS_Z:
	case ABS_RZ:	/* the triggers (if mapped to axes) */
		if (xpad->xtype == XTYPE_XBOXONE)
			input_set_abs_params(input_dev, abs, 0, 1023, 0, 0);
		else
			input_set_abs_params(input_dev, abs, 0, 255, 0, 0);
		break;
	case ABS_HAT0X:
	case ABS_HAT0Y:	/* the d-pad (only if dpad is mapped to axes */
		input_set_abs_params(input_dev, abs, -1, 1, 0, 0);
		break;
	default:
		input_set_abs_params(input_dev, abs, 0, 0, 0, 0);
		break;
	}
}

static void xpad_deinit_input(struct usb_xpad *xpad)
{
	if (xpad->input_created) {
		xpad->input_created = false;
		xpad_led_disconnect(xpad);
		input_unregister_device(xpad->dev);
	}
}

static int xpad_init_input(struct usb_xpad *xpad)
{
	struct input_dev *input_dev;
	int i, error;

	input_dev = input_allocate_device();
	if (!input_dev)
		return -ENOMEM;

	xpad->dev = input_dev;
	input_dev->name = xpad->name;
	input_dev->phys = xpad->phys;
	usb_to_input_id(xpad->udev, &input_dev->id);

	if (xpad->xtype == XTYPE_XBOX360W) {
		/* x360w controllers and the receiver have different ids */
		input_dev->id.product = 0x02a1;
	}

	input_dev->dev.parent = &xpad->intf->dev;

	input_set_drvdata(input_dev, xpad);

	if (xpad->xtype != XTYPE_XBOX360W) {
		input_dev->open = xpad_open;
		input_dev->close = xpad_close;
	}

	if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
		/* set up axes */
		for (i = 0; xpad_abs[i] >= 0; i++)
			xpad_set_up_abs(input_dev, xpad_abs[i]);
	}

	/* set up standard buttons */
	for (i = 0; xpad_common_btn[i] >= 0; i++)
		input_set_capability(input_dev, EV_KEY, xpad_common_btn[i]);

	/* set up model-specific ones */
	if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype == XTYPE_XBOX360W ||
	    xpad->xtype == XTYPE_XBOXONE) {
		for (i = 0; xpad360_btn[i] >= 0; i++)
			input_set_capability(input_dev, EV_KEY, xpad360_btn[i]);
		if (xpad->mapping & MAP_SELECT_BUTTON)
			input_set_capability(input_dev, EV_KEY, KEY_RECORD);
	} else {
		for (i = 0; xpad_btn[i] >= 0; i++)
			input_set_capability(input_dev, EV_KEY, xpad_btn[i]);
	}

	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
		for (i = 0; xpad_btn_pad[i] >= 0; i++)
			input_set_capability(input_dev, EV_KEY,
					     xpad_btn_pad[i]);
	}

	/*
	 * This should be a simple else block. However historically
	 * xbox360w has mapped DPAD to buttons while xbox360 did not. This
	 * made no sense, but now we can not just switch back and have to
	 * support both behaviors.
	 */
	if (!(xpad->mapping & MAP_DPAD_TO_BUTTONS) ||
	    xpad->xtype == XTYPE_XBOX360W) {
		for (i = 0; xpad_abs_pad[i] >= 0; i++)
			xpad_set_up_abs(input_dev, xpad_abs_pad[i]);
	}

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

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

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

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

	xpad->input_created = true;
	return 0;

err_disconnect_led:
	xpad_led_disconnect(xpad);
err_destroy_ff:
	input_ff_destroy(input_dev);
err_free_input:
	input_free_device(input_dev);
	return error;
}

static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
	printk(KERN_INFO "xpad: currently in xpad_probe");
	struct usb_device *udev = interface_to_usbdev(intf);
	struct usb_xpad *xpad;
	struct usb_endpoint_descriptor *ep_irq_in, *ep_irq_out;
	int i, error;

	if (intf->cur_altsetting->desc.bNumEndpoints != 2)
		return -ENODEV;

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

	xpad = kzalloc(sizeof(struct usb_xpad), GFP_KERNEL);
	if (!xpad)
		return -ENOMEM;

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

	xpad->idata = usb_alloc_coherent(udev, XPAD_PKT_LEN,
					 GFP_KERNEL, &xpad->idata_dma);
	if (!xpad->idata) {
		error = -ENOMEM;
		goto err_free_mem;
	}

	xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL);
	if (!xpad->irq_in) {
		error = -ENOMEM;
		goto err_free_idata;
	}

	xpad->udev = udev;
	xpad->intf = intf;
	xpad->mapping = xpad_device[i].mapping;
	xpad->xtype = xpad_device[i].xtype;
	xpad->name = xpad_device[i].name;
	INIT_WORK(&xpad->work, xpad_presence_work);

	if (xpad->xtype == XTYPE_UNKNOWN) {
		if (intf->cur_altsetting->desc.bInterfaceClass == USB_CLASS_VENDOR_SPEC) {
			if (intf->cur_altsetting->desc.bInterfaceProtocol == 129)
				xpad->xtype = XTYPE_XBOX360W;
			else if (intf->cur_altsetting->desc.bInterfaceProtocol == 208)
				xpad->xtype = XTYPE_XBOXONE;
			else
				xpad->xtype = XTYPE_XBOX360;
		} else {
			xpad->xtype = XTYPE_XBOX;
		}

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

	if (xpad->xtype == XTYPE_XBOXONE &&
	    intf->cur_altsetting->desc.bInterfaceNumber != 0) {
		/*
		 * The Xbox One controller lists three interfaces all with the
		 * same interface class, subclass and protocol. Differentiate by
		 * interface number.
		 */
		error = -ENODEV;
		goto err_free_in_urb;
	}

	ep_irq_in = ep_irq_out = NULL;

	for (i = 0; i < 2; i++) {
		struct usb_endpoint_descriptor *ep =
				&intf->cur_altsetting->endpoint[i].desc;

		if (usb_endpoint_xfer_int(ep)) {
			if (usb_endpoint_dir_in(ep))
				ep_irq_in = ep;
			else
				ep_irq_out = ep;
		}
	}

	if (!ep_irq_in || !ep_irq_out) {
		error = -ENODEV;
		goto err_free_in_urb;
	}

	error = xpad_init_output(intf, xpad, ep_irq_out);
	if (error)
		goto err_free_in_urb;

	usb_fill_int_urb(xpad->irq_in, udev,
			 usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress),
			 xpad->idata, XPAD_PKT_LEN, xpad_irq_in,
			 xpad, ep_irq_in->bInterval);
	xpad->irq_in->transfer_dma = xpad->idata_dma;
	xpad->irq_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;

	usb_set_intfdata(intf, xpad);

	if (xpad->xtype == XTYPE_XBOX360W) {
		/*
		 * Submit the int URB immediately rather than waiting for open
		 * because we get status messages from the device whether
		 * or not any controllers are attached.  In fact, it's
		 * exactly the message that a controller has arrived that
		 * we're waiting for.
		 */
		error = xpad360w_start_input(xpad);
		if (error)
			goto err_deinit_output;
		/*
		 * Wireless controllers require RESET_RESUME to work properly
		 * after suspend. Ideally this quirk should be in usb core
		 * quirk list, but we have too many vendors producing these
		 * controllers and we'd need to maintain 2 identical lists
		 * here in this driver and in usb core.
		 */
		udev->quirks |= USB_QUIRK_RESET_RESUME;
	} else {
		error = xpad_init_input(xpad);
		if (error)
			goto err_deinit_output;
	}
	return 0;

err_deinit_output:
	xpad_deinit_output(xpad);
err_free_in_urb:
	usb_free_urb(xpad->irq_in);
err_free_idata:
	usb_free_coherent(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
err_free_mem:
	kfree(xpad);
	return error;
}

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

	if (xpad->xtype == XTYPE_XBOX360W)
		xpad360w_stop_input(xpad);

	xpad_deinit_input(xpad);

	/*
	 * Now that both input device and LED device are gone we can
	 * stop output URB.
	 */
	xpad_stop_output(xpad);

	xpad_deinit_output(xpad);

	usb_free_urb(xpad->irq_in);
	usb_free_coherent(xpad->udev, XPAD_PKT_LEN,
			xpad->idata, xpad->idata_dma);

	kfree(xpad);

	usb_set_intfdata(intf, NULL);
}

static int xpad_suspend(struct usb_interface *intf, pm_message_t message)
{
	struct usb_xpad *xpad = usb_get_intfdata(intf);
	struct input_dev *input = xpad->dev;

	if (xpad->xtype == XTYPE_XBOX360W) {
		/*
		 * Wireless controllers always listen to input so
		 * they are notified when controller shows up
		 * or goes away.
		 */
		xpad360w_stop_input(xpad);

		/*
		 * The wireless adapter is going off now, so the
		 * gamepads are going to become disconnected.
		 * Unless explicitly disabled, power them down
		 * so they don't just sit there flashing.
		 */
		if (auto_poweroff && xpad->pad_present)
			xpad360w_poweroff_controller(xpad);
	} else {
		mutex_lock(&input->mutex);
		if (input->users)
			xpad_stop_input(xpad);
		mutex_unlock(&input->mutex);
	}

	xpad_stop_output(xpad);

	return 0;
}

static int xpad_resume(struct usb_interface *intf)
{
	struct usb_xpad *xpad = usb_get_intfdata(intf);
	struct input_dev *input = xpad->dev;
	int retval = 0;

	if (xpad->xtype == XTYPE_XBOX360W) {
		retval = xpad360w_start_input(xpad);
	} else {
		mutex_lock(&input->mutex);
		if (input->users) {
			retval = xpad_start_input(xpad);
		} else if (xpad->xtype == XTYPE_XBOXONE) {
			/*
			 * Even if there are no users, we'll send Xbox One pads
			 * the startup sequence so they don't sit there and
			 * blink until somebody opens the input device again.
			 */
			retval = xpad_start_xbox_one(xpad);
		}
		mutex_unlock(&input->mutex);
	}

	return retval;
}

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

module_usb_driver(xpad_driver);

MODULE_AUTHOR("Marko Friedemann <[email protected]>");
MODULE_DESCRIPTION("X-Box pad driver");
MODULE_LICENSE("GPL");