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linux/drivers/input/joystick/xpad.c
Cameron Gutman caca925fca Input: xpad - validate USB endpoint count during probe 
This prevents a malicious USB device from causing an oops.

Signed-off-by: Cameron Gutman <aicommander@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-06-29 10:07:47 -07:00

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/*
* X-Box gamepad driver
*
* Copyright (c) 2002 Marko Friedemann <mfr@bmx-chemnitz.de>
* 2004 Oliver Schwartz <Oliver.Schwartz@gmx.de>,
* Steven Toth <steve@toth.demon.co.uk>,
* Franz Lehner <franz@caos.at>,
* Ivan Hawkes <blackhawk@ivanhawkes.com>
* 2005 Dominic Cerquetti <binary1230@yahoo.com>
* 2006 Adam Buchbinder <adam.buchbinder@gmail.com>
* 2007 Jan Kratochvil <honza@jikos.cz>
* 2010 Christoph Fritz <chf.fritz@googlemail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*
* 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.
*/
#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 DRIVER_AUTHOR "Marko Friedemann <mfr@bmx-chemnitz.de>"
#define DRIVER_DESC "X-Box pad driver"
#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 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 const struct xpad_device {
u16 idVendor;
u16 idProduct;
char *name;
u8 mapping;
u8 xtype;
} xpad_device[] = {
{ 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, 0x0289, "Microsoft X-Box pad v2 (US)", 0, XTYPE_XBOX },
{ 0x045e, 0x028e, "Microsoft X-Box 360 pad", 0, XTYPE_XBOX360 },
{ 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, 0x0291, "Xbox 360 Wireless Receiver (XBOX)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
{ 0x045e, 0x0719, "Xbox 360 Wireless Receiver", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
{ 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", 0, XTYPE_XBOX },
{ 0x044f, 0xb326, "Thrustmaster Gamepad GP XID", 0, XTYPE_XBOX360 },
{ 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 },
{ 0x05fd, 0x1007, "Mad Catz Controller (unverified)", 0, XTYPE_XBOX },
{ 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)", 0, XTYPE_XBOX },
{ 0x0738, 0x4516, "Mad Catz Control Pad", 0, XTYPE_XBOX },
{ 0x0738, 0x4522, "Mad Catz LumiCON", 0, XTYPE_XBOX },
{ 0x0738, 0x4526, "Mad Catz Control Pad Pro", 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, 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, 0x4738, "Mad Catz Wired Xbox 360 Controller (SFIV)", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
{ 0x0738, 0x4740, "Mad Catz Beat Pad", 0, 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, 0xb726, "Mad Catz Xbox controller - MW2", 0, 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, 0xf738, "Super SFIV FightStick TE S", 0, XTYPE_XBOX360 },
{ 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, 0x2390, "Radica Games Jtech Controller", 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, 0x0105, "HSM3 Xbox360 dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
{ 0x0e6f, 0x0113, "Afterglow AX.1 Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
{ 0x0e6f, 0x0139, "Afterglow Prismatic Wired Controller", 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, 0x0146, "Rock Candy Wired Controller for Xbox One", 0, XTYPE_XBOXONE },
{ 0x0e6f, 0x0301, "Logic3 Controller", 0, XTYPE_XBOX360 },
{ 0x0e6f, 0x0401, "Logic3 Controller", 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, 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, 0x0067, "HORIPAD ONE", 0, XTYPE_XBOXONE },
{ 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 },
{ 0x12ab, 0x0004, "Honey Bee Xbox360 dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
{ 0x12ab, 0x0301, "PDP AFTERGLOW AX.1", 0, 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 },
{ 0x146b, 0x0601, "BigBen Interactive XBOX 360 Controller", 0, XTYPE_XBOX360 },
{ 0x1532, 0x0037, "Razer Sabertooth", 0, XTYPE_XBOX360 },
{ 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 },
{ 0x24c6, 0x542a, "Xbox ONE spectra", 0, XTYPE_XBOXONE },
{ 0x24c6, 0x5d04, "Razer Sabertooth", 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, 0xf016, "Mad Catz Xbox 360 Controller", 0, XTYPE_XBOX360 },
{ 0x1bad, 0xf023, "MLG Pro Circuit Controller (Xbox)", 0, XTYPE_XBOX360 },
{ 0x1bad, 0xf028, "Street Fighter IV FightPad", 0, XTYPE_XBOX360 },
{ 0x1bad, 0xf038, "Street Fighter IV FightStick TE", 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 },
{ 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, 0x541a, "PowerA Xbox One Mini Wired Controller", 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, 0x5506, "Hori SOULCALIBUR V Stick", 0, XTYPE_XBOX360 },
{ 0x24c6, 0x5b02, "Thrustmaster, Inc. GPX Controller", 0, XTYPE_XBOX360 },
{ 0x24c6, 0x5b03, "Thrustmaster Ferrari 458 Racing Wheel", 0, XTYPE_XBOX360 },
{ 0xffff, 0xffff, "Chinese-made Xbox Controller", 0, XTYPE_XBOX },
{ 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 struct usb_device_id xpad_table[] = {
{ USB_INTERFACE_INFO('X', 'B', 0) }, /* X-Box USB-IF not approved class */
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(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(0x0e6f), /* 0x0e6f X-Box 360 controllers */
XPAD_XBOXONE_VENDOR(0x0e6f), /* 0x0e6f X-Box One 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(0x1bad), /* Harminix Rock Band Guitar and Drums */
XPAD_XBOX360_VENDOR(0x0f0d), /* Hori Controllers */
XPAD_XBOXONE_VENDOR(0x0f0d), /* Hori Controllers */
XPAD_XBOX360_VENDOR(0x1689), /* Razer Onza */
XPAD_XBOX360_VENDOR(0x24c6), /* PowerA Controllers */
XPAD_XBOXONE_VENDOR(0x24c6), /* PowerA Controllers */
XPAD_XBOX360_VENDOR(0x1532), /* Razer Sabertooth */
XPAD_XBOX360_VENDOR(0x15e4), /* Numark X-Box 360 controllers */
XPAD_XBOX360_VENDOR(0x162e), /* Joytech X-Box 360 controllers */
{ }
};
MODULE_DEVICE_TABLE(usb, xpad_table);
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;
#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 */
};
static int xpad_init_input(struct usb_xpad *xpad);
static void xpad_deinit_input(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);
}
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_buttons
*
* Process a button update packet from an Xbox one controller.
*/
static void xpadone_process_buttons(struct usb_xpad *xpad,
struct input_dev *dev,
unsigned char *data)
{
/* menu/view buttons */
input_report_key(dev, BTN_START, data[4] & 0x04);
input_report_key(dev, BTN_SELECT, data[4] & 0x08);
/* 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);
}
/*
* 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;
switch (data[0]) {
case 0x20:
xpadone_process_buttons(xpad, dev, data);
break;
case 0x07:
/* the xbox button has its own special report */
input_report_key(dev, BTN_MODE, data[4] & 0x01);
input_sync(dev);
break;
}
}
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;
}
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_out_packet(struct usb_xpad *xpad)
{
struct xpad_output_packet *pkt, *packet = NULL;
int i;
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 ep_irq_out_idx;
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) {
error = -ENOMEM;
goto fail1;
}
spin_lock_init(&xpad->odata_lock);
xpad->irq_out = usb_alloc_urb(0, GFP_KERNEL);
if (!xpad->irq_out) {
error = -ENOMEM;
goto fail2;
}
/* Xbox One controller has in/out endpoints swapped. */
ep_irq_out_idx = xpad->xtype == XTYPE_XBOXONE ? 0 : 1;
ep_irq_out = &intf->cur_altsetting->endpoint[ep_irq_out_idx].desc;
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;
fail2: usb_free_coherent(xpad->udev, XPAD_PKT_LEN, xpad->odata, xpad->odata_dma);
fail1: 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)
{
struct xpad_output_packet *packet =
&xpad->out_packets[XPAD_OUT_CMD_IDX];
unsigned long flags;
int retval;
spin_lock_irqsave(&xpad->odata_lock, flags);
/* Xbox one controller needs to be initialized. */
packet->data[0] = 0x05;
packet->data[1] = 0x20;
packet->data[2] = xpad->odata_serial++; /* packet serial */
packet->data[3] = 0x01; /* rumble bit enable? */
packet->data[4] = 0x00;
packet->len = 5;
packet->pending = true;
/* Reset the sequence so we send out start packet first */
xpad->last_out_packet = -1;
retval = xpad_try_sending_next_out_packet(xpad);
spin_unlock_irqrestore(&xpad->odata_lock, flags);
return retval;
}
#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;
packet->data[11] = 0x00;
packet->data[12] = 0x00;
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;
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 (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 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);
set_bit(abs, input_dev->absbit);
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;
}
}
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);
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;
}
__set_bit(EV_KEY, input_dev->evbit);
if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
__set_bit(EV_ABS, input_dev->evbit);
/* 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++)
__set_bit(xpad_common_btn[i], input_dev->keybit);
/* 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++)
__set_bit(xpad360_btn[i], input_dev->keybit);
} else {
for (i = 0; xpad_btn[i] >= 0; i++)
__set_bit(xpad_btn[i], input_dev->keybit);
}
if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
for (i = 0; xpad_btn_pad[i] >= 0; i++)
__set_bit(xpad_btn_pad[i], input_dev->keybit);
}
/*
* 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++)
__set_bit(xpad_btn_triggers[i], input_dev->keybit);
} 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)
{
struct usb_device *udev = interface_to_usbdev(intf);
struct usb_xpad *xpad;
struct usb_endpoint_descriptor *ep_irq_in;
int ep_irq_in_idx;
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;
}
error = xpad_init_output(intf, xpad);
if (error)
goto err_free_in_urb;
/* Xbox One controller has in/out endpoints swapped. */
ep_irq_in_idx = xpad->xtype == XTYPE_XBOXONE ? 1 : 0;
ep_irq_in = &intf->cur_altsetting->endpoint[ep_irq_in_idx].desc;
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);
} 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);
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,
.reset_resume = xpad_resume,
.id_table = xpad_table,
};
module_usb_driver(xpad_driver);
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
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