On Sun, Feb 22, 2009 at 12:31:27AM -0500, Mike Murphy wrote: > Greetings, > > Attached is a revised version of my previous patch to > drivers/input/joystick/xpad.c, which should apply without issues to > the current stable tree (2.6.28.7 at the time of this writing). I have > made a number of major changes since the original: > > 1. Removed kobject and used input device's existing kobject for sysfs > via DEVICE_ATTR. All attributes are part of a game_device group, which > I will document once this patch has been reviewed. Thanks to Greg K-H > for his help with the sysfs interface and helpful feedback. Return > values for sscanf are also now checked, and the ugly strcmp code has > been replaced by a cleaner solution (thanks Oliver Neukum). Wireless > 360 controllers now produce an online/offline uevent when > connecting/disconnecting, for later userspace use. Additionally, the > whole sysfs interface is now dependent upon CONFIG_SYSFS (the driver > should continue to work without it). > > 2. urb submissions while holding mutexes have been reverted to > GFP_KERNEL, and fixes have been made to the shared workqueue code to > account for possible adverse events (such as removal of the device > before the work gets done). Thanks to Oliver Neukum for his feedback. > > 3. Re-factored the code a bit and split it into two pieces (xpad.h and > xpad.c). The division of the main data structures into a header file > makes development on the main body much easier. > > 4. After extensive testing and debugging with a popular fighting game > in an emulator (with 3-4 concurrent players on wireless 360 > controllers), I changed the original square axis algorithm to an axis > limiting and scaling algorithm that works on a per-stick basis. This > new algorithm is substantially less jumpy when using a square axis, > and it permits the size of the inscribed square to be adjusted on a > per-controller basis. The nominal value to use to achieve the largest > possible inscribed square on "perfect" hardware is 23170, but > manufacturing variations in the controllers might require a smaller > number. > > Comments and feedback on this revision are greatly appreciated, and I > plan to test all the supported hardware I can get my hands on (need to > borrow some wired classic and 360 devices) to be sure the new code > doesn't break support for older devices. I will also document the > userspace interface by submitting a Documentation/ABI/testing patch > with the "final" version of the driver, once it has been nailed down. > > Thanks, > Mike > -- > Mike Murphy > Ph.D. Candidate and NSF Graduate Research Fellow > Clemson University School of Computing > 120 McAdams Hall > Clemson, SC 29634-0974 USA > Tel: +1 864.656.2838 Fax: +1 864.656.0145 > http://cirg.cs.clemson.edu/~mamurph > diff -uNr origdrv/drivers/input/joystick/xpad.c newdrv/drivers/input/joystick/xpad.c > --- origdrv/drivers/input/joystick/xpad.c 2009-02-14 22:39:20.000000000 -0500 > +++ newdrv/drivers/input/joystick/xpad.c 2009-02-21 23:58:21.000000000 -0500 > @@ -1,5 +1,8 @@ > /* > - * X-Box gamepad driver > + * Xbox gamepad driver with Xbox 360 wired/wireless support > + * > + * Last Modified: 21 February 2009 > + * Mike Murphy <mamurph@xxxxxxxxxxxxxx> > * > * Copyright (c) 2002 Marko Friedemann <mfr@xxxxxxxxxxxxxxx> > * 2004 Oliver Schwartz <Oliver.Schwartz@xxxxxx>, > @@ -9,6 +12,8 @@ > * 2005 Dominic Cerquetti <binary1230@xxxxxxxxx> > * 2006 Adam Buchbinder <adam.buchbinder@xxxxxxxxx> > * 2007 Jan Kratochvil <honza@xxxxxxxx> > + * 2009 Clemson University > + * (contact: Mike Murphy <mamurph@xxxxxxxxxxxxxx>) > * > * This program is free software; you can redistribute it and/or > * modify it under the terms of the GNU General Public License as > @@ -24,224 +29,305 @@ > * along with this program; if not, write to the Free Software > * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA > * > + * Please see xbox.h for the ChangeLog. > + */ > + > + > + > +#include "xpad.h" > + > + > +/* The dead zone and stick limit both affect the behavior of the corresponding > + * analog stick, since the output values reported for the stick inputs will > + * be scaled onto [0,32767]. It is thus necessary to ensure that the dead zone > + * is never larger than the stick limit. In fact, a minimal amount of stick > + * travel space (1024) is maintained between the two values. In practice, > + * however, the stick limit should always be much greater than the dead zone. > + */ > + > +static void set_dead_zone(unsigned int new_size, unsigned int *dz, unsigned int stick_limit) > +{ > + if ((new_size + 1024) >= stick_limit) > + new_size = (stick_limit > 1024) ? stick_limit - 1024 : 0; > + *dz = new_size; > +} > + > +static void set_stick_limit(unsigned int new_size, unsigned int *sl, unsigned int dead_zone) > +{ > + if (new_size < (dead_zone + 1024)) > + new_size = dead_zone + 1024; > + if (new_size > 32767) > + new_size = 32767; > + *sl = new_size; > +} > + > + > +/****************************************************************************/ > +/* > + * SysFs interface functions > * > - * 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 > - * > - * 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 > - * > - * 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/init.h> > -#include <linux/slab.h> > -#include <linux/stat.h> > -#include <linux/module.h> > -#include <linux/usb/input.h> > - > -#define DRIVER_AUTHOR "Marko Friedemann <mfr@xxxxxxxxxxxxxxx>" > -#define DRIVER_DESC "X-Box pad driver" > - > -#define XPAD_PKT_LEN 32 > - > -/* 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 0 > -#define MAP_DPAD_TO_AXES 1 > -#define MAP_DPAD_UNKNOWN 2 > - > -#define XTYPE_XBOX 0 > -#define XTYPE_XBOX360 1 > -#define XTYPE_XBOX360W 2 > -#define XTYPE_UNKNOWN 3 > - > -static int 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 const struct xpad_device { > - u16 idVendor; > - u16 idProduct; > - char *name; > - u8 dpad_mapping; > - u8 xtype; > -} xpad_device[] = { > - { 0x045e, 0x0202, "Microsoft X-Box pad v1 (US)", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x045e, 0x0289, "Microsoft X-Box pad v2 (US)", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x045e, 0x0285, "Microsoft X-Box pad (Japan)", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x045e, 0x0287, "Microsoft Xbox Controller S", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x045e, 0x0719, "Xbox 360 Wireless Receiver", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W }, > - { 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX }, > - { 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x046d, 0xc242, "Logitech Chillstream Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX360 }, > - { 0x046d, 0xca84, "Logitech Xbox Cordless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x046d, 0xca88, "Logitech Compact Controller for Xbox", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x05fd, 0x1007, "Mad Catz Controller (unverified)", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x0738, 0x4516, "Mad Catz Control Pad", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x0738, 0x4522, "Mad Catz LumiCON", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x0738, 0x4526, "Mad Catz Control Pad Pro", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x0738, 0x4536, "Mad Catz MicroCON", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x0738, 0x4540, "Mad Catz Beat Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX }, > - { 0x0738, 0x4556, "Mad Catz Lynx Wireless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x0738, 0x4716, "Mad Catz Wired Xbox 360 Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX360 }, > - { 0x0738, 0x6040, "Mad Catz Beat Pad Pro", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX }, > - { 0x0c12, 0x8802, "Zeroplus Xbox Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x0c12, 0x880a, "Pelican Eclipse PL-2023", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x0c12, 0x8810, "Zeroplus Xbox Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x0c12, 0x9902, "HAMA VibraX - *FAULTY HARDWARE*", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x0e4c, 0x1097, "Radica Gamester Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x0e4c, 0x2390, "Radica Games Jtech Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x0e6f, 0x0003, "Logic3 Freebird wireless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x0e6f, 0x0005, "Eclipse wireless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x0e6f, 0x0006, "Edge wireless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x0e6f, 0x0006, "Pelican 'TSZ' Wired Xbox 360 Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX360 }, > - { 0x0e8f, 0x0201, "SmartJoy Frag Xpad/PS2 adaptor", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x0f30, 0x0202, "Joytech Advanced Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x0f30, 0x8888, "BigBen XBMiniPad Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x102c, 0xff0c, "Joytech Wireless Advanced Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x12ab, 0x8809, "Xbox DDR dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX }, > - { 0x1430, 0x4748, "RedOctane Guitar Hero X-plorer", MAP_DPAD_TO_AXES, XTYPE_XBOX360 }, > - { 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX }, > - { 0x045e, 0x028e, "Microsoft X-Box 360 pad", MAP_DPAD_TO_AXES, XTYPE_XBOX360 }, > - { 0xffff, 0xffff, "Chinese-made Xbox Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, > - { 0x0000, 0x0000, "Generic X-Box pad", MAP_DPAD_UNKNOWN, 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_BACK, 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 */ > -}; > - > -/* only used if MAP_DPAD_TO_BUTTONS */ > -static const signed short xpad_btn_pad[] = { > - BTN_LEFT, BTN_RIGHT, /* d-pad left, right */ > - BTN_0, BTN_1, /* d-pad up, down (XXX names??) */ > - -1 /* terminating entry */ > -}; > - > -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 */ > - ABS_Z, ABS_RZ, /* triggers left/right */ > - -1 /* terminating entry */ > -}; > - > -/* only used if MAP_DPAD_TO_AXES */ > -static const signed short xpad_abs_pad[] = { > - ABS_HAT0X, ABS_HAT0Y, /* d-pad axes */ > - -1 /* terminating entry */ > -}; > - > -/* 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) } > - > -static struct usb_device_id xpad_table [] = { > - { USB_INTERFACE_INFO('X', 'B', 0) }, /* X-Box USB-IF not approved class */ > - XPAD_XBOX360_VENDOR(0x045e), /* Microsoft X-Box 360 controllers */ > - XPAD_XBOX360_VENDOR(0x046d), /* Logitech X-Box 360 style controllers */ > - XPAD_XBOX360_VENDOR(0x0738), /* Mad Catz X-Box 360 controllers */ > - XPAD_XBOX360_VENDOR(0x0e6f), /* 0x0e6f X-Box 360 controllers */ > - XPAD_XBOX360_VENDOR(0x1430), /* RedOctane X-Box 360 controllers */ > - { } > -}; > - > -MODULE_DEVICE_TABLE (usb, xpad_table); > - > -struct usb_xpad { > - struct input_dev *dev; /* input device interface */ > - struct usb_device *udev; /* usb device */ > - > - int pad_present; > - > - struct urb *irq_in; /* urb for interrupt in report */ > - unsigned char *idata; /* input data */ > - dma_addr_t idata_dma; > + * We use common functions, where possible, to implement the show/store > + * routines. This design saves on code and reduces the burden of adding to or > + * changing the interface. > + */ > + > +#if defined(CONFIG_SYSFS) > > - struct urb *bulk_out; > - unsigned char *bdata; > +static ssize_t xpad_show_uint(struct device *dev, struct device_attribute *attr, > + char *buf) > +{ > + struct usb_xpad *xpad = to_xpad(dev); > + unsigned int value; > + if (attr == &dev_attr_left_dead_zone) > + value = xpad->left_dead_zone; > + else if (attr == &dev_attr_right_dead_zone) > + value = xpad->right_dead_zone; > + else if (attr == &dev_attr_left_stick_limit) > + value = xpad->left_stick_limit; > + else if (attr == &dev_attr_right_stick_limit) > + value = xpad->right_stick_limit; > + else > + return -EIO; > + return snprintf(buf, PAGE_SIZE, "%u\n", value); > +} > > -#if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS) > - struct urb *irq_out; /* urb for interrupt out report */ > - unsigned char *odata; /* output data */ > - dma_addr_t odata_dma; > - struct mutex odata_mutex; > -#endif > > -#if defined(CONFIG_JOYSTICK_XPAD_LEDS) > - struct xpad_led *led; > +static ssize_t xpad_store_uint(struct device *dev, > + struct device_attribute *attr, const char *buf, size_t count) > +{ > + struct usb_xpad *xpad = to_xpad(dev); > + unsigned int new_value; > + if (1 != sscanf(buf, "%u", &new_value)) { > + return -EIO; > + } > + if (attr == &dev_attr_left_dead_zone) > + set_dead_zone(new_value, &xpad->left_dead_zone, xpad->left_stick_limit); > + else if (attr == &dev_attr_right_dead_zone) > + set_dead_zone(new_value, &xpad->right_dead_zone, xpad->right_stick_limit); > + else if (attr == &dev_attr_left_stick_limit) > + set_stick_limit(new_value, &xpad->left_stick_limit, xpad->left_dead_zone); > + else if (attr == &dev_attr_right_stick_limit) > + set_stick_limit(new_value, &xpad->right_stick_limit, xpad->right_dead_zone); > + else > + return -EIO; > + return strnlen(buf, PAGE_SIZE); > +} > + > + > +static ssize_t xpad_store_rumble_enable(struct device *dev, > + struct device_attribute *attr, const char *buf, size_t count) > +{ > + struct usb_xpad *xpad = to_xpad(dev); > + int newrumble = xpad->rumble_enable; > + if (1 == sscanf(buf, "%d", &newrumble)) Oh, that's not wrong but it looks weird, usually, a code reader would expect to see if (sscanf(...) == 1) > + xpad->rumble_enable = (newrumble) ? 1 : 0; > + return count; > +} > + > + > +/* read-only attributes share a common store function that returns an error */ > +static ssize_t xpad_store_ro(struct device *dev, struct device_attribute *attr, > + const char *buf, size_t count) > +{ > + return -EIO; > +} > + > + > +static ssize_t xpad_show_int(struct device *dev, struct device_attribute *attr, > + char *buf) > +{ > + struct usb_xpad *xpad = to_xpad(dev); > + int value; > + if (attr == &dev_attr_rumble_enable) > + value = xpad->rumble_enable; > + else if (attr == &dev_attr_controller_number) > + value = xpad->controller_number; > + else if (attr == &dev_attr_controller_present) > + value = xpad->controller_present; > + else if (attr == &dev_attr_controller_type) > + value = xpad->controller_type; > + else > + return -EIO; > + return snprintf(buf, PAGE_SIZE, "%d\n", value); > +} > + > + > +static ssize_t xpad_show_id(struct device *dev, > + struct device_attribute *attr, char *buf) > +{ > + struct usb_xpad *xpad = to_xpad(dev); > + return snprintf(buf, PAGE_SIZE, "%s\n", xpad->controller_unique_id); > +} > + > #endif > +/* end of sysfs interface */ > +/*****************************************************************************/ > + > +/* Input section */ > + > +/* xpad_init_controller > + * > + * Performs controller setup based on controller type. > + * > + * NOTE: xpad->controller_data->controller_type needs to be set BEFORE > + * calling this function! > + */ > + > +static void xpad_init_controller(struct usb_xpad *xpad) > +{ > + set_stick_limit(XSTICK_LIMIT_DEFAULT, &xpad->left_stick_limit, xpad->left_dead_zone); > + set_stick_limit(XSTICK_LIMIT_DEFAULT, &xpad->right_stick_limit, xpad->right_dead_zone); > + set_dead_zone(XDEAD_ZONE_DEFAULT, &xpad->left_dead_zone, xpad->left_stick_limit); > + set_dead_zone(XDEAD_ZONE_DEFAULT, &xpad->right_dead_zone, xpad->right_stick_limit); > + > + if (xpad->controller_type == XCONTROLLER_TYPE_GUITAR) { > + xpad->rumble_enable = 0; > + } > + else if (xpad->controller_type == XCONTROLLER_TYPE_DANCE_PAD) { > + xpad->rumble_enable = 0; > + } > + else { > + xpad->rumble_enable = 1; > + } The brackets are not needed in these checks, may be you should run scripts/checkpatch.pl to check obvious coding styles issues. > +} > + > > - char phys[64]; /* physical device path */ > +/* > + * xpad_work_controller > + * > + * Submits command to set pad number on LED display of wireless 360 > + * controllers. The shared workqueue is used for this purpose, so that > + * the interrupt handler is kept short. > + */ > + > +static void xpad_work_controller(struct work_struct *w) > +{ > + struct usb_xpad * xpad = container_of(w, struct usb_xpad, work); > + xpad_send_led_command(xpad, xpad->controller_number + 1); > + xpad->work_pending = 0; > +} > + > + > +/* > + * xpad_process_sticks > + * > + * Handles stick input, accounting for dead zones and square axes. Based > + * on the original handlers for the Xbox and Xbox 360 in > + * xpad_process_packet and xpad360_process_packet, but unified to avoid > + * duplication. > + * > + * Whenever a dead zone is used, each axis is scaled so that moving the > + * stick slightly out of the dead zone range results in a low axis > + * value in jstest(1), while moving the stick to the maximum position > + * along any axis still results in 32767. > + * > + * In order to provide the ability to map inputs to a square axis (used > + * by older games), the left_stick_limit and right_stick_limit can be > + * set. These limits specify at what point in the raw input coordinates > + * an axis is reported to be at maximum value (32767 or -32767). > + * > + * Both the dead zone and stick limit algorithms are implemented > + * together as a coordinate transformation from "effective coordinates" > + * onto the output coordinates (which have absolute values from 0 to > + * 32767 and are positive or negative based on direction). Effective > + * coordinates are defined as those input values that are greater than > + * the dead zone but less than the stick limit on the axis in question. > + * > + * DANGER: All denominator values in division operations MUST be checked > + * for non-zero condition. Dividing by zero inside the kernel can cause > + * a system deadlock. > + */ > + > +static void xpad_process_sticks(struct usb_xpad *xpad, unsigned char *data) > +{ > + struct input_dev *dev = xpad->dev; > + int coords[4]; /* x, y, rx, ry */ > + int x_offset, y_offset, rx_offset, ry_offset; > + int c; > + int range; > + int abs_magnitude, adjusted_magnitude, difference, scale_fraction; > + int dead_zone[2], stick_limit[2]; > + > + dead_zone[0] = xpad->left_dead_zone; > + dead_zone[1] = xpad->right_dead_zone; > + stick_limit[0] = xpad->left_stick_limit; > + stick_limit[1] = xpad->right_stick_limit; > + > + if (xpad->xtype == XTYPE_XBOX) { > + x_offset = 12; > + y_offset = 14; > + rx_offset = 16; > + ry_offset = 18; > + } > + else { > + x_offset = 6; > + y_offset = 8; > + rx_offset = 10; > + ry_offset = 12; > + } > + > + coords[0] = (__s16) le16_to_cpup((__le16 *)(data + x_offset)); > + coords[1] = ~(__s16) le16_to_cpup((__le16 *)(data + y_offset)); > + coords[2] = (__s16) le16_to_cpup((__le16 *)(data + rx_offset)); > + coords[3] = ~(__s16) le16_to_cpup((__le16 *)(data + ry_offset)); > + > + /* Adjustment for dead zone and square axis */ > + for (c = 0; c < 4; c++) { > + abs_magnitude = (int) coords[c]; > + if (abs_magnitude < 0) > + abs_magnitude = -abs_magnitude; > + adjusted_magnitude = abs_magnitude; > + > + range = (stick_limit[c/2] - dead_zone[c/2]); > + > + if (abs_magnitude >= stick_limit[c/2]) { > + adjusted_magnitude = 32767; > + } > + else if (abs_magnitude <= dead_zone[c/2]) { > + adjusted_magnitude = 0; > + } > + else if (range > 0) { > + difference = 32767 - range; > + if (difference) { > + /* DIVISION: difference non-zero */ > + scale_fraction = range / difference; > + adjusted_magnitude = abs_magnitude - dead_zone[c/2]; > + > + /* Approximate floating-point division with a > + * "catch-up" scaling algorithm that adds back > + * to the adjusted_magnitude based on distance > + * from the origin (0 in adjusted coordinates). > + * If the range / difference is at least 1, > + * then 1 needs to be added to the adjusted > + * magnitude for every scale_fraction units > + * from the origin. If the range / difference > + * is less than 1 (0 in integer division), > + * then divide the difference by the range to > + * obtain the number of units to add per unit > + * from the adjusted origin. > + */ > + if (scale_fraction) { > + /* DIVISION: scale_fraction non-zero */ > + adjusted_magnitude += adjusted_magnitude / scale_fraction; > + } > + else { > + /* DIVISION: range non-zero */ > + scale_fraction = difference / range; > + adjusted_magnitude += adjusted_magnitude * scale_fraction; > + } > + if (adjusted_magnitude > 32767) > + adjusted_magnitude = 32767; > + } > + } > + coords[c] = (coords[c] < 0) ? -adjusted_magnitude : adjusted_magnitude; > + } > + > + input_report_abs(dev, ABS_X, (__s16) coords[0]); > + input_report_abs(dev, ABS_Y, (__s16) coords[1]); > + input_report_abs(dev, ABS_RX, (__s16) coords[2]); > + input_report_abs(dev, ABS_RY, (__s16) coords[3]); > +} > > - int dpad_mapping; /* map d-pad to buttons or to axes */ > - int xtype; /* type of xbox device */ > -}; > > /* > * xpad_process_packet > @@ -256,18 +342,9 @@ > static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data) > { > struct input_dev *dev = xpad->dev; > - > - /* 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))); > + > + /* left and right sticks */ > + xpad_process_sticks(xpad, data); > > /* triggers left/right */ > input_report_abs(dev, ABS_Z, data[10]); > @@ -305,6 +382,7 @@ > input_sync(dev); > } > > + > /* > * xpad360_process_packet > * > @@ -350,18 +428,9 @@ > 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); > - > - /* 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))); > + > + /* left and right sticks */ > + xpad_process_sticks(xpad, data); > > /* triggers left/right */ > input_report_abs(dev, ABS_Z, data[4]); > @@ -370,6 +439,33 @@ > input_sync(dev); > } > > + > +static void xpad360w_identify_controller(struct usb_xpad *xpad, unsigned char *data) > +{ > + u32 id; > + int i; > + > + snprintf(xpad->controller_unique_id, 17, > + "%02x%02x%02x%02x%02x%02x%02x%02x", > + data[8], data[9], data[10], data[11], data[12], data[13], > + data[14], data[15]); > + > + /* Identify controller type */ > + id = (u32) *(data + 22); > + xpad->controller_type = XCONTROLLER_TYPE_OTHER; > + for (i = 0; w360_id[i].id_bytes; i++) { > + if (id == w360_id[i].id_bytes) { > + xpad->controller_type = > + w360_id[i].controller_type; > + break; > + } > + } > + > + if (id == XCONTROLLER_TYPE_OTHER) > + printk(KERN_INFO "xpad: unknown wireless controller type: %08x\n", id); > +} > + > + > /* > * xpad360w_process_packet > * > @@ -379,6 +475,7 @@ > * Byte.Bit > * 00.1 - Status change: The controller or headset has connected/disconnected > * Bits 01.7 and 01.6 are valid > + * 01.f - Some kind of unique identifier message (see above) > * 01.7 - Controller present > * 01.6 - Headset present > * 01.1 - Pad state (Bytes 4+) valid > @@ -387,22 +484,53 @@ > > static void xpad360w_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data) > { > - /* Presence change */ > + int padnum = 0; > + > + /* Presence change */ > if (data[0] & 0x08) { > + padnum = xpad->controller_number; > if (data[1] & 0x80) { > - xpad->pad_present = 1; > - usb_submit_urb(xpad->bulk_out, GFP_ATOMIC); > - } else > - xpad->pad_present = 0; > + /* ignore duplicates */ > + if (!xpad->controller_present) { > + xpad->controller_present = 1; > + > + if (xpad->work_pending) > + PREPARE_WORK(&xpad->work, &xpad_work_controller); > + else > + INIT_WORK(&xpad->work, &xpad_work_controller); > + xpad->work_pending = 1; > + schedule_work(&xpad->work); > + kobject_uevent(&xpad->dev->dev.kobj, KOBJ_ONLINE); > + } > + } > + else { > + kobject_uevent(&xpad->dev->dev.kobj, KOBJ_OFFLINE); > + xpad->controller_present = 0; > + xpad->controller_unique_id[0] = '\0'; > + xpad->controller_type = XCONTROLLER_TYPE_NONE; > + /* We do NOT flush the shared workqueue here, because > + * this function is called from an interrupt handler. > + * If the controller has disconnected from the receiver, > + * the worst that will happen from the work task running > + * is that a packet will be transmitted from the > + * receiver to a non-listening controller > + */ > + } > } > > - /* Valid pad data */ > - if (!(data[1] & 0x1)) > - return; > - > - xpad360_process_packet(xpad, cmd, &data[4]); > + /* Process packets according to type */ > + if (data[1] == 0x0f) { > + if (! xpad->controller_unique_id[0]) { > + xpad360w_identify_controller(xpad, data); > + xpad_init_controller(xpad); > + } > + } > + else if (data[1] & 0x1) { > + xpad360_process_packet(xpad, cmd, &data[4]); > + } > } > > + > static void xpad_irq_in(struct urb *urb) > { > struct usb_xpad *xpad = urb->context; > @@ -445,24 +573,16 @@ > __func__, retval); > } > > -static void xpad_bulk_out(struct urb *urb) > -{ > - switch (urb->status) { > - case 0: > - /* success */ > - break; > - case -ECONNRESET: > - case -ENOENT: > - case -ESHUTDOWN: > - /* this urb is terminated, clean up */ > - dbg("%s - urb shutting down with status: %d", __func__, urb->status); > - break; > - default: > - dbg("%s - nonzero urb status received: %d", __func__, urb->status); > - } > -} > > +/* end input section */ > + > +/*****************************************************************************/ > +/* IRQ output section: present in object code only if the force feedback or > + * LED interface is enabled. > + */ > + > #if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS) > + > static void xpad_irq_out(struct urb *urb) > { > int retval, status; > @@ -493,12 +613,13 @@ > __func__, retval); > } > > + > static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad) > { > struct usb_endpoint_descriptor *ep_irq_out; > int error = -ENOMEM; > > - if (xpad->xtype != XTYPE_XBOX360) > + if ((xpad->xtype != XTYPE_XBOX360) && (xpad->xtype != XTYPE_XBOX360W)) > return 0; > > xpad->odata = usb_buffer_alloc(xpad->udev, XPAD_PKT_LEN, > @@ -526,45 +647,82 @@ > fail1: return error; > } > > + > static void xpad_stop_output(struct usb_xpad *xpad) > { > - if (xpad->xtype == XTYPE_XBOX360) > + if ((xpad->xtype == XTYPE_XBOX360) || (xpad->xtype == XTYPE_XBOX360W)) > usb_kill_urb(xpad->irq_out); > } > > + > static void xpad_deinit_output(struct usb_xpad *xpad) > { > - if (xpad->xtype == XTYPE_XBOX360) { > + if ((xpad->xtype == XTYPE_XBOX360) || (xpad->xtype == XTYPE_XBOX360W)) { > usb_free_urb(xpad->irq_out); > usb_buffer_free(xpad->udev, XPAD_PKT_LEN, > xpad->odata, xpad->odata_dma); > } > } > + > #else > +/* Dummy implementations for xpad_probe and xpad_disconnect */ > static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad) { return 0; } > static void xpad_deinit_output(struct usb_xpad *xpad) {} > static void xpad_stop_output(struct usb_xpad *xpad) {} > #endif > > -#ifdef CONFIG_JOYSTICK_XPAD_FF > +/* end output section */ > + > +/*****************************************************************************/ > + > +/* Force feedback (rumble effect) section, depends on CONFIG_JOYSTICK_XPAD_FF */ > + > +#if defined(CONFIG_JOYSTICK_XPAD_FF) > + > +/* Rumble support for wireless controllers follows protocol description > + * from xboxdrv userspace driver: > + * http://pingus.seul.org/~grumbel/xboxdrv/ > + */ > static int xpad_play_effect(struct input_dev *dev, void *data, > struct ff_effect *effect) > { > struct usb_xpad *xpad = input_get_drvdata(dev); > + > + if (! xpad->rumble_enable) > + return 0; > > if (effect->type == FF_RUMBLE) { > __u16 strong = effect->u.rumble.strong_magnitude; > __u16 weak = effect->u.rumble.weak_magnitude; > - xpad->odata[0] = 0x00; > - xpad->odata[1] = 0x08; > - xpad->odata[2] = 0x00; > - xpad->odata[3] = strong / 256; > - xpad->odata[4] = weak / 256; > - xpad->odata[5] = 0x00; > - xpad->odata[6] = 0x00; > - xpad->odata[7] = 0x00; > - xpad->irq_out->transfer_buffer_length = 8; > + mutex_lock(&xpad->odata_mutex); > + if (xpad->xtype == XTYPE_XBOX360W) { > + xpad->odata[0] = 0x00; > + xpad->odata[1] = 0x01; > + xpad->odata[2] = 0x0f; > + xpad->odata[3] = 0xc0; > + xpad->odata[4] = 0x00; > + xpad->odata[5] = strong / 256; > + xpad->odata[6] = weak / 256; > + xpad->odata[7] = 0x00; > + xpad->odata[8] = 0x00; > + xpad->odata[9] = 0x00; > + xpad->odata[10] = 0x00; > + xpad->odata[11] = 0x00; > + xpad->irq_out->transfer_buffer_length = 12; > + } > + else { > + xpad->odata[0] = 0x00; > + xpad->odata[1] = 0x08; > + xpad->odata[2] = 0x00; > + xpad->odata[3] = strong / 256; > + xpad->odata[4] = weak / 256; > + xpad->odata[5] = 0x00; > + xpad->odata[6] = 0x00; > + xpad->odata[7] = 0x00; > + xpad->irq_out->transfer_buffer_length = 8; > + } > usb_submit_urb(xpad->irq_out, GFP_KERNEL); > + mutex_unlock(&xpad->odata_mutex); > } > > return 0; > @@ -572,7 +730,7 @@ > > static int xpad_init_ff(struct usb_xpad *xpad) > { > - if (xpad->xtype != XTYPE_XBOX360) > + if ((xpad->xtype != XTYPE_XBOX360) && (xpad->xtype != XTYPE_XBOX360W)) > return 0; > > input_set_capability(xpad->dev, EV_FF, FF_RUMBLE); > @@ -581,26 +739,50 @@ > } > > #else > +/* dummy implementation for xpad_probe */ > static int xpad_init_ff(struct usb_xpad *xpad) { return 0; } > #endif > > + > +/* end force feedback section */ > + > +/*****************************************************************************/ > + > +/* LED handling section: provides support for the ring of LEDs on the 360 > + * controllers. */ > + > #if defined(CONFIG_JOYSTICK_XPAD_LEDS) > -#include <linux/leds.h> > > -struct xpad_led { > - char name[16]; > - struct led_classdev led_cdev; > - struct usb_xpad *xpad; > -}; > > +/* XBox 360 wireless controller follows protocol from xboxdrv userspace > + * driver: > + * http://pingus.seul.org/~grumbel/xboxdrv/ > + */ > static void xpad_send_led_command(struct usb_xpad *xpad, int command) > { > if (command >= 0 && command < 14) { > mutex_lock(&xpad->odata_mutex); > - xpad->odata[0] = 0x01; > - xpad->odata[1] = 0x03; > - xpad->odata[2] = command; > - xpad->irq_out->transfer_buffer_length = 3; > + if (xpad->xtype == XTYPE_XBOX360W) { > + xpad->odata[0] = 0x00; > + xpad->odata[1] = 0x00; > + xpad->odata[2] = 0x08; > + xpad->odata[3] = 0x40 + (command % 0x0e); > + xpad->odata[4] = 0x00; > + xpad->odata[5] = 0x00; > + xpad->odata[6] = 0x00; > + xpad->odata[7] = 0x00; > + xpad->odata[8] = 0x00; > + xpad->odata[9] = 0x00; > + xpad->odata[10] = 0x00; > + xpad->odata[11] = 0x00; > + xpad->irq_out->transfer_buffer_length = 12; > + } > + else { > + xpad->odata[0] = 0x01; > + xpad->odata[1] = 0x03; > + xpad->odata[2] = command; > + xpad->irq_out->transfer_buffer_length = 3; > + } > usb_submit_urb(xpad->irq_out, GFP_KERNEL); > mutex_unlock(&xpad->odata_mutex); > } > @@ -615,6 +797,7 @@ > xpad_send_led_command(xpad_led->xpad, value); > } > > + > static int xpad_led_probe(struct usb_xpad *xpad) > { > static atomic_t led_seq = ATOMIC_INIT(0); > @@ -623,7 +806,7 @@ > struct led_classdev *led_cdev; > int error; > > - if (xpad->xtype != XTYPE_XBOX360) > + if ((xpad->xtype != XTYPE_XBOX360) && (xpad->xtype != XTYPE_XBOX360W)) > return 0; > > xpad->led = led = kzalloc(sizeof(struct xpad_led), GFP_KERNEL); > @@ -664,10 +847,16 @@ > } > } > #else > +/* dummies for xpad_probe and xpad_disconnect */ > static int xpad_led_probe(struct usb_xpad *xpad) { return 0; } > static void xpad_led_disconnect(struct usb_xpad *xpad) { } > #endif > > +/* end LED section */ > + > +/*****************************************************************************/ > + > +/* Module and device functions */ > > static int xpad_open(struct input_dev *dev) > { > @@ -721,6 +910,7 @@ > struct usb_xpad *xpad; > struct input_dev *input_dev; > struct usb_endpoint_descriptor *ep_irq_in; > + int controller_type; > int i; > int error = -ENOMEM; > > @@ -747,6 +937,7 @@ > xpad->udev = udev; > xpad->dpad_mapping = xpad_device[i].dpad_mapping; > xpad->xtype = xpad_device[i].xtype; > + controller_type = xpad_device[i].controller_type; > if (xpad->dpad_mapping == MAP_DPAD_UNKNOWN) > xpad->dpad_mapping = !dpad_to_buttons; > if (xpad->xtype == XTYPE_UNKNOWN) { > @@ -819,6 +1010,10 @@ > goto fail4; > > usb_set_intfdata(intf, xpad); > + > + xpad->controller_type = controller_type; > + if (controller_type != XCONTROLLER_TYPE_NONE) > + xpad_init_controller(xpad); > > /* > * Submit the int URB immediatly rather than waiting for open > @@ -828,48 +1023,38 @@ > * we're waiting for. > */ > if (xpad->xtype == XTYPE_XBOX360W) { > + xpad->controller_present = 0; > + xpad->controller_unique_id[0] = '\0'; > + xpad->controller_number = > + (intf->cur_altsetting->desc.bInterfaceNumber / 2) + 1; > xpad->irq_in->dev = xpad->udev; > error = usb_submit_urb(xpad->irq_in, GFP_KERNEL); > if (error) > - goto fail4; > - > - /* > - * Setup the message to set the LEDs on the > - * controller when it shows up > - */ > - xpad->bulk_out = usb_alloc_urb(0, GFP_KERNEL); > - if(!xpad->bulk_out) > goto fail5; > - > - xpad->bdata = kzalloc(XPAD_PKT_LEN, GFP_KERNEL); > - if(!xpad->bdata) > - goto fail6; > - > - xpad->bdata[2] = 0x08; > - switch (intf->cur_altsetting->desc.bInterfaceNumber) { > - case 0: > - xpad->bdata[3] = 0x42; > - break; > - case 2: > - xpad->bdata[3] = 0x43; > - break; > - case 4: > - xpad->bdata[3] = 0x44; > - break; > - case 6: > - xpad->bdata[3] = 0x45; > - } > - > - ep_irq_in = &intf->cur_altsetting->endpoint[1].desc; > - usb_fill_bulk_urb(xpad->bulk_out, udev, > - usb_sndbulkpipe(udev, ep_irq_in->bEndpointAddress), > - xpad->bdata, XPAD_PKT_LEN, xpad_bulk_out, xpad); > } > + else { > + xpad->controller_present = 1; > + strncpy(xpad->controller_unique_id, "wired", 17); > + xpad->controller_number = 0; > + } > + > + /* Set up device attributes */ > +#ifdef CONFIG_SYSFS > + xpad->sysfs_ok = 1; > + error = sysfs_create_group(&input_dev->dev.kobj, &xpad_default_attr_group); > + if (error) { > + /* Driver will work without the sysfs interface, but parameters > + * will not be adjustable, so this failure is a warning. */ > + printk(KERN_WARNING "xpad: sysfs_create_group failed with error %d\n", error); > + xpad->sysfs_ok = 0; > + } > +#endif No need to check for CONFIG_SYSFS, sysfs_create_group will be a no-op which returns 0 if not built. > > return 0; > > - fail6: usb_free_urb(xpad->bulk_out); > - fail5: usb_kill_urb(xpad->irq_in); > + fail5: usb_set_intfdata(intf, NULL); > + input_unregister_device(xpad->dev); > + xpad_led_disconnect(xpad); > fail4: usb_free_urb(xpad->irq_in); > fail3: xpad_deinit_output(xpad); > fail2: usb_buffer_free(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma); > @@ -885,12 +1070,19 @@ > > usb_set_intfdata(intf, NULL); > if (xpad) { > + /* If a work task remains, get rid of it by flushing the > + * shared work queue. > + */ > + if (xpad->work_pending) > + flush_scheduled_work(); > +#ifdef CONFIG_SYSFS > + if (xpad->sysfs_ok) > + sysfs_remove_group(&xpad->dev->dev.kobj, &xpad_default_attr_group); > +#endif Ditto. > xpad_led_disconnect(xpad); > input_unregister_device(xpad->dev); > xpad_deinit_output(xpad); > if (xpad->xtype == XTYPE_XBOX360W) { > - usb_kill_urb(xpad->bulk_out); > - usb_free_urb(xpad->bulk_out); > usb_kill_urb(xpad->irq_in); > } > usb_free_urb(xpad->irq_in); > @@ -900,12 +1092,7 @@ > } > } > > -static struct usb_driver xpad_driver = { > - .name = "xpad", > - .probe = xpad_probe, > - .disconnect = xpad_disconnect, > - .id_table = xpad_table, > -}; > + > > static int __init usb_xpad_init(void) > { > @@ -920,9 +1107,4 @@ > usb_deregister(&xpad_driver); > } > > -module_init(usb_xpad_init); > -module_exit(usb_xpad_exit); > > -MODULE_AUTHOR(DRIVER_AUTHOR); > -MODULE_DESCRIPTION(DRIVER_DESC); > -MODULE_LICENSE("GPL"); > diff -uNr origdrv/drivers/input/joystick/xpad.h newdrv/drivers/input/joystick/xpad.h > --- origdrv/drivers/input/joystick/xpad.h 1969-12-31 19:00:00.000000000 -0500 > +++ newdrv/drivers/input/joystick/xpad.h 2009-02-21 23:49:36.000000000 -0500 > @@ -0,0 +1,578 @@ > +/* > + * Xbox gamepad driver with Xbox 360 wired/wireless support > + * > + * Last Modified: 21 February 2009 > + * Mike Murphy <mamurph@xxxxxxxxxxxxxx> > + * > + * Copyright (c) 2002 Marko Friedemann <mfr@xxxxxxxxxxxxxxx> > + * 2004 Oliver Schwartz <Oliver.Schwartz@xxxxxx>, > + * Steven Toth <steve@xxxxxxxxxxxxxxxx>, > + * Franz Lehner <franz@xxxxxxx>, > + * Ivan Hawkes <blackhawk@xxxxxxxxxxxxxx> > + * 2005 Dominic Cerquetti <binary1230@xxxxxxxxx> > + * 2006 Adam Buchbinder <adam.buchbinder@xxxxxxxxx> > + * 2007 Jan Kratochvil <honza@xxxxxxxx> > + * 2009 Clemson University > + * (contact: Mike Murphy <mamurph@xxxxxxxxxxxxxx>) > + * > + * 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 > + * - xboxdrv docs http://pingus.seul.org/~grumbel/xboxdrv/ > + * > + * 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 > + * > + * TODO: > + * - fix "analog" buttons (reported as digital now) > + * - need USB IDs for other dance pads > + * > + * Driver history is located at the bottom of this file. > + */ > + > +#ifndef _XPAD_H > +#define _XPAD_H > + > +#include <linux/kernel.h> > +#include <linux/init.h> > +#include <linux/slab.h> > +#include <linux/stat.h> > +#include <linux/module.h> > +#include <linux/usb/input.h> > +#include <linux/workqueue.h> > + > +#if defined(CONFIG_SYSFS) > +#include <linux/kobject.h> > +#include <linux/sysfs.h> > +#include <linux/string.h> > +#endif Same here, conditionally including these files is not necessary. > + > +#if defined(CONFIG_JOYSTICK_XPAD_LEDS) > +#include <linux/leds.h> > + > +struct xpad_led { > + char name[16]; > + struct led_classdev led_cdev; > + struct usb_xpad *xpad; > +}; > +#endif > + Ditto. Actually it's useful for data which consume memory, or fields inside structures, but not for types themselves. But well, these parts are a removing, not new code. Anyway, looks like a nice work. Frederic. > +#define DRIVER_AUTHOR "Marko Friedemann <mfr@xxxxxxxxxxxxxxx>" > +#define DRIVER_DESC "Xbox/360 pad driver" > + > +#define XPAD_PKT_LEN 32 > + > + > +/* 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 0 > +#define MAP_DPAD_TO_AXES 1 > +#define MAP_DPAD_UNKNOWN 2 > + > +/* Type of controller *interface* (original, wired 360, wireless 360) */ > +#define XTYPE_XBOX 0 > +#define XTYPE_XBOX360 1 > +#define XTYPE_XBOX360W 2 > +#define XTYPE_UNKNOWN 3 > + > +/* Type of controller (e.g. pad, guitar, other input device) */ > +#define XCONTROLLER_TYPE_NONE 0 > +#define XCONTROLLER_TYPE_PAD 1 > +#define XCONTROLLER_TYPE_GUITAR 2 > +#define XCONTROLLER_TYPE_DANCE_PAD 3 > +#define XCONTROLLER_TYPE_OTHER 255 > + > + > +/* The Xbox 360 controllers have sensitive sticks that often do not center > + * exactly. A dead zone causes stick events below a certain threshhold to be > + * reported as zero. > + * > + * The default dead zone size is 8192, which was obtained by testing a > + * wireless 360 controller with jstest(1) and consulting gaming forums for > + * a recommended dead zone for this controller. The consensus opinion was > + * 0.25 (on a scale from 0 to 1), which corresponds to 8192 (out of 32767). > + */ > +#define XDEAD_ZONE_DEFAULT 8192 > + > +/* Default limit for the sticks is the maximum axis value (32767), which will > + * cause the sticks to have a radial axis as designed in the hardware. To > + * enable square axis support, set the stick limits to 23170 or lower at run > + * time via the sysfs interface. */ > +#define XSTICK_LIMIT_DEFAULT 32767 > + > +/* Rumble normally enabled */ > +#define XRUMBLE_DEFAULT 1 > + > + > +/* This module parameter is something of a relic, but it remains for > + * compatibility. Importantly, the option to map the D-PAD buttons applies > + * only to controller *interfaces* (i.e. vendor and product codes) not > + * explicitly present in xpad_device[]. */ > +static int dpad_to_buttons = 0; > +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"); > + > + > +/* Table of various device interfaces recognized by this driver. Each supported > + * device has a directional pad mapping, interface type, and controller type. > + * Note that wireless 360 devices have XCONTROLLER_TYPE_NONE, as the actual > + * type of the gaming controller is not known until the controller binds > + * wirelessly with the receiver > + */ > +static const struct xpad_device { > + u16 idVendor; > + u16 idProduct; > + char *name; > + u8 dpad_mapping; > + u8 xtype; > + u8 controller_type; > +} xpad_device[] = { > + { 0x045e, 0x0202, "Microsoft X-Box pad v1 (US)", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x045e, 0x0289, "Microsoft X-Box pad v2 (US)", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x045e, 0x0285, "Microsoft X-Box pad (Japan)", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x045e, 0x0287, "Microsoft Xbox Controller S", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x045e, 0x0719, "Xbox 360 Wireless Receiver", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W, > + XCONTROLLER_TYPE_NONE }, > + { 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX, > + XCONTROLLER_TYPE_DANCE_PAD }, > + { 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x046d, 0xc242, "Logitech Chillstream Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX360, > + XCONTROLLER_TYPE_PAD }, > + { 0x046d, 0xca84, "Logitech Xbox Cordless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x046d, 0xca88, "Logitech Compact Controller for Xbox", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x05fd, 0x1007, "Mad Catz Controller (unverified)", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)", MAP_DPAD_TO_AXES, > + XTYPE_XBOX, XCONTROLLER_TYPE_PAD }, > + { 0x0738, 0x4516, "Mad Catz Control Pad", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x0738, 0x4522, "Mad Catz LumiCON", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x0738, 0x4526, "Mad Catz Control Pad Pro", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x0738, 0x4536, "Mad Catz MicroCON", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x0738, 0x4540, "Mad Catz Beat Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX, > + XCONTROLLER_TYPE_DANCE_PAD }, > + { 0x0738, 0x4556, "Mad Catz Lynx Wireless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x0738, 0x4716, "Mad Catz Wired Xbox 360 Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX360, > + XCONTROLLER_TYPE_PAD }, > + { 0x0738, 0x6040, "Mad Catz Beat Pad Pro", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX, > + XCONTROLLER_TYPE_DANCE_PAD }, > + { 0x0c12, 0x8802, "Zeroplus Xbox Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x0c12, 0x880a, "Pelican Eclipse PL-2023", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x0c12, 0x8810, "Zeroplus Xbox Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x0c12, 0x9902, "HAMA VibraX - *FAULTY HARDWARE*", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x0e4c, 0x1097, "Radica Gamester Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x0e4c, 0x2390, "Radica Games Jtech Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x0e6f, 0x0003, "Logic3 Freebird wireless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x0e6f, 0x0005, "Eclipse wireless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x0e6f, 0x0006, "Edge wireless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x0e6f, 0x0006, "Pelican 'TSZ' Wired Xbox 360 Controller", MAP_DPAD_TO_AXES, > + XTYPE_XBOX360, XCONTROLLER_TYPE_PAD }, > + { 0x0e8f, 0x0201, "SmartJoy Frag Xpad/PS2 adaptor", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x0f30, 0x0202, "Joytech Advanced Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x0f30, 0x8888, "BigBen XBMiniPad Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x102c, 0xff0c, "Joytech Wireless Advanced Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x12ab, 0x8809, "Xbox DDR dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX, > + XCONTROLLER_TYPE_DANCE_PAD }, > + { 0x1430, 0x4748, "RedOctane Guitar Hero X-plorer", MAP_DPAD_TO_AXES, XTYPE_XBOX360, > + XCONTROLLER_TYPE_GUITAR }, > + { 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX, > + XCONTROLLER_TYPE_DANCE_PAD }, > + { 0x045e, 0x028e, "Microsoft X-Box 360 pad", MAP_DPAD_TO_AXES, XTYPE_XBOX360, > + XCONTROLLER_TYPE_PAD }, > + { 0xffff, 0xffff, "Chinese-made Xbox Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX, > + XCONTROLLER_TYPE_PAD }, > + { 0x0000, 0x0000, "Generic X-Box pad", MAP_DPAD_UNKNOWN, XTYPE_UNKNOWN, > + XCONTROLLER_TYPE_PAD } > +}; > + > + > +/* 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_BACK, 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 */ > +}; > + > +/* only used if MAP_DPAD_TO_BUTTONS */ > +static const signed short xpad_btn_pad[] = { > + BTN_LEFT, BTN_RIGHT, /* d-pad left, right */ > + BTN_0, BTN_1, /* d-pad up, down (XXX names??) */ > + -1 /* terminating entry */ > +}; > + > +/* buttons for x360 controller */ > +static const signed short xpad360_btn[] = { > + BTN_TL, BTN_TR, /* Button LB/RB */ > + BTN_MODE, /* The big X button */ > + -1 > +}; > + > +/* sticks and triggers common to all devices */ > +static const signed short xpad_abs[] = { > + ABS_X, ABS_Y, /* left stick */ > + ABS_RX, ABS_RY, /* right stick */ > + ABS_Z, ABS_RZ, /* triggers left/right */ > + -1 /* terminating entry */ > +}; > + > +/* only used if MAP_DPAD_TO_AXES */ > +static const signed short xpad_abs_pad[] = { > + ABS_HAT0X, ABS_HAT0Y, /* d-pad axes */ > + -1 /* terminating entry */ > +}; > + > + > +/* 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) } > + > +static struct usb_device_id xpad_table [] = { > + { USB_INTERFACE_INFO('X', 'B', 0) }, /* X-Box USB-IF not approved class */ > + XPAD_XBOX360_VENDOR(0x045e), /* Microsoft X-Box 360 controllers */ > + XPAD_XBOX360_VENDOR(0x046d), /* Logitech X-Box 360 style controllers */ > + XPAD_XBOX360_VENDOR(0x0738), /* Mad Catz X-Box 360 controllers */ > + XPAD_XBOX360_VENDOR(0x0e6f), /* 0x0e6f X-Box 360 controllers */ > + XPAD_XBOX360_VENDOR(0x1430), /* RedOctane X-Box 360 controllers */ > + { } > +}; > + > +MODULE_DEVICE_TABLE (usb, xpad_table); > + > + > +/* Wireless 360 device identification. > + * > + * When a wireless controller connects, the 2nd packet it sends SEEMS to > + * be some kind of unique controller identification message. Using usbmon > + * (see Documentation/usb/usbmon.txt), I tried 4 gamepads and a guitar, and > + * I collected the following 5 ID packets from the 5 devices: > + * > + * 000f00f0 00ccfd27 0060e226 63700010 13e3201d 30034001 5001ffff ff > + * 000f00f0 f0ccfd27 0060d8c4 e9600009 13e7201d 30034001 5001ffff ff > + * 000f00f0 00ccfd27 0060578b 82f00010 13e3201d 30034001 5001ffff ff > + * 000f00f0 f0ccfd27 0060da1c b1500009 13e7201d 30034001 5001ffff ff > + * 000f00f0 f0ccfd27 006002d1 71d10000 13e3201d 30034430 5107ffff ff > + * > + * From this trace data, I concocted the following (potentially incorrect) > + * scheme for detecting type and unique ID: > + * > + * ******** xx****xx xxxxxxxx xxxx**xx **xx**** ****tttt tttt**** ** > + * | unique id | | type | > + * > + * It appears that some of the bytes in the first half of the message, noted > + * above as "unique id" are some sort of serial number, though I cannot work > + * out any correspondence between these bytes and the serial number printed > + * under the battery pack. Many of the bytes in this possibly unique field > + * are not unique across my controllers, and may not in fact be part of the > + * controller's unique identification, but I figured it was better to have > + * extra bytes on either end of the unique byte string instead of the > + * alternative. In addition, the packet appears to indicate the type of > + * the controller toward the end: the pads all send 4001 5001, while the > + * guitar sends 4430 5107. > + * > + * Further testing over a wider variety of devices is probably needed to > + * determine if changes need to be made to this scheme. > + */ > +static const struct w360_id { > + u32 id_bytes; > + u8 controller_type; > +} w360_id[] = { > + { 0x40015001, XCONTROLLER_TYPE_PAD }, > + { 0x44305107, XCONTROLLER_TYPE_GUITAR }, > + { 0x00000000, XCONTROLLER_TYPE_NONE } > +}; > + > + > +/* Some of the fields in the following structure are for later use with > + * userspace applications to recognize individual controllers. The dead zones > + * and axis limits can be changed "on the fly" and are effective immediately. > + * > + * The fields labeled "ro" and "rw" are intended to be read-only and > + * read-write, respectively, when exposed in sysfs. Most of the read-only > + * fields are to support *wireless* 360 controllers. The controller_number > + * is used to set the LED, while controller_present tracks whether the > + * controller is connected to the wireless receiver. Controller type applies > + * to all models (wired and wireless), and tracks whether the device is a pad, > + * guitar, etc. for later userspace use. See the comment above regarding > + * type and unique ID detection on wireless 360 receivers. > + */ > +struct usb_xpad { > + struct input_dev *dev; /* input device interface */ > + struct usb_device *udev; /* usb device */ > + > + struct urb *irq_in; /* urb for interrupt in report */ > + unsigned char *idata; /* input data */ > + dma_addr_t idata_dma; > + > +#if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS) > + struct urb *irq_out; /* urb for interrupt out report */ > + unsigned char *odata; /* output data */ > + dma_addr_t odata_dma; > + struct mutex odata_mutex; > +#endif > + > +#if defined(CONFIG_JOYSTICK_XPAD_LEDS) > + struct xpad_led *led; > +#endif > + > + char phys[64]; /* physical device path */ > + > + int dpad_mapping; /* map d-pad to buttons or to axes */ > + int xtype; /* type of xbox device */ > + > + /* Work structure for moving the call to xpad_send_led_command > + * outside the interrupt handler for packet processing */ > + struct work_struct work; > + int work_pending; > + > + int controller_number; /* controller number (1-4) for 360w. ro */ > + int controller_present; /* 360w controller presence detection. ro */ > + int controller_type; /* controller type. ro */ > + char controller_unique_id[17]; /* unique ID of controller (360w). ro */ > + unsigned int left_dead_zone; /* dead zone for left stick. rw */ > + unsigned int right_dead_zone; /* dead zone for right stick. rw */ > + unsigned int left_stick_limit; /* stick axis limit for left stick. rw */ > + unsigned int right_stick_limit; /* stick axis limit for right stick. rw */ > + int rumble_enable; /* enable/disable rumble. rw */ > + > +#if defined(CONFIG_SYSFS) > + int sysfs_ok; /* sysfs interface OK */ > +#endif > +}; > +#define to_xpad(d) input_get_drvdata(to_input_dev(d)) > + > + > +/* Function prototypes for non-sysfs interface functions */ > +static void set_dead_zone(unsigned int new_size, unsigned int *dz, unsigned int stick_limit); > +static void set_stick_limit(unsigned int new_size, unsigned int *sl, unsigned int dead_zone); > +static void xpad_init_controller(struct usb_xpad *xpad); > +static void xpad_send_led_command(struct usb_xpad *xpad, int command); > +static void xpad_work_controller(struct work_struct *w); > +static void xpad_process_sticks(struct usb_xpad *xpad, unsigned char *data); > +static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data); > +static void xpad360_process_packet(struct usb_xpad *xpad, > + u16 cmd, unsigned char *data); > +static void xpad360w_identify_controller(struct usb_xpad *xpad, unsigned char *data); > +static void xpad360w_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data); > +static void xpad_irq_in(struct urb *urb); > +static void xpad_irq_out(struct urb *urb); > +static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad); > +static void xpad_stop_output(struct usb_xpad *xpad); > +static void xpad_stop_output(struct usb_xpad *xpad); > +static int xpad_play_effect(struct input_dev *dev, void *data, > + struct ff_effect *effect); > +static int xpad_init_ff(struct usb_xpad *xpad); > +static void xpad_send_led_command(struct usb_xpad *xpad, int command); > +static void xpad_led_set(struct led_classdev *led_cdev, enum led_brightness value); > +static int xpad_led_probe(struct usb_xpad *xpad); > +static void xpad_led_disconnect(struct usb_xpad *xpad); > +static int xpad_open(struct input_dev *dev); > +static void xpad_close(struct input_dev *dev); > +static void xpad_set_up_abs(struct input_dev *input_dev, signed short abs); > +static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id); > +static void xpad_disconnect(struct usb_interface *intf); > +static int __init usb_xpad_init(void); > +static void __exit usb_xpad_exit(void); > + > + > +/* sysfs interface */ > +#if defined(CONFIG_SYSFS) > +static ssize_t xpad_show_uint(struct device *dev, struct device_attribute *attr, > + char *buf); > +static ssize_t xpad_store_uint(struct device *dev, > + struct device_attribute *attr, const char *buf, size_t count); > +static ssize_t xpad_store_rumble_enable(struct device *dev, > + struct device_attribute *attr, const char *buf, size_t count); > +static ssize_t xpad_store_ro(struct device *dev, struct device_attribute *attr, > + const char *buf, size_t count); > +static ssize_t xpad_show_int(struct device *dev, struct device_attribute *attr, > + char *buf); > +static ssize_t xpad_show_id(struct device *dev, > + struct device_attribute *attr, char *buf); > + > + > + > +/* Device attributes */ > +static DEVICE_ATTR(left_dead_zone, 0666, xpad_show_uint, xpad_store_uint); > +static DEVICE_ATTR(right_dead_zone, 0666, xpad_show_uint, xpad_store_uint); > +static DEVICE_ATTR(left_stick_limit, 0666, xpad_show_uint, xpad_store_uint); > +static DEVICE_ATTR(right_stick_limit, 0666, xpad_show_uint, xpad_store_uint); > +static DEVICE_ATTR(rumble_enable, 0666, xpad_show_int, xpad_store_rumble_enable); > +static DEVICE_ATTR(controller_number, 0444, xpad_show_int, xpad_store_ro); > +static DEVICE_ATTR(controller_present, 0444, xpad_show_int, xpad_store_ro); > +static DEVICE_ATTR(controller_type, 0444, xpad_show_int, xpad_store_ro); > +static DEVICE_ATTR(id, 0444, xpad_show_id, xpad_store_ro); > + > +static struct attribute *xpad_default_attrs[] = { > + &dev_attr_left_dead_zone.attr, > + &dev_attr_right_dead_zone.attr, > + &dev_attr_left_stick_limit.attr, > + &dev_attr_right_stick_limit.attr, > + &dev_attr_rumble_enable.attr, > + &dev_attr_controller_number.attr, > + &dev_attr_controller_present.attr, > + &dev_attr_controller_type.attr, > + &dev_attr_id.attr, > + NULL > +}; > + > +static struct attribute_group xpad_default_attr_group = { > + .attrs = xpad_default_attrs, > + .name = "game_device", > +}; > +#endif > + > + > +static struct usb_driver xpad_driver = { > + .name = "xpad", > + .probe = xpad_probe, > + .disconnect = xpad_disconnect, > + .id_table = xpad_table, > +}; > + > +module_init(usb_xpad_init); > +module_exit(usb_xpad_exit); > + > +MODULE_AUTHOR(DRIVER_AUTHOR); > +MODULE_DESCRIPTION(DRIVER_DESC); > +MODULE_LICENSE("GPL"); > + > +#endif > + > +/* Driver History: > + * > + * 2009-02-21 : Refactored and changed stick handling > + * - split code into two pieces (xpad.h and xpad.c) > + * - cleaned up sysfs interface > + * - changed square axis algorithm to an axis limit algorithm, which allows > + * size of inscribed square to be adjusted; available for both sticks > + * - dead zones now per-stick > + * > + * 2009-02-18 : Changes per mailing list (and some additions) > + * - revised sysfs interface (thanks Greg K-H) > + * - check return values of sscanf (thanks Oliver Neukum) > + * - urb submission while holding mutex now once again GFP_KERNEL (thanks Oliver Neukum) > + * - work structure fixes (thanks Oliver Neukum) > + * - uevents generated for wireless controller online/offline > + * - sysfs interface only if CONFIG_SYSFS is set > + * > + * 2009-02-15 : Minor adjustments > + * - added KOBJ_ONLINE/KOBJ_OFFLINE events when controllers are connected to > + * or disconnected from the wireless 360 receiver > + * - ignore duplicate connect messages on the same connection > + * - added option to enable/disable rumble on a per-controller basis > + * - rumble events are not sent to guitar or dance pad devices > + * > + * 2009-02-14 : Added sysfs interface > + * - dead zones and square axis settings can now be made per-controller > + * - removed dead_zone and square_axis module parameters (use sysfs) > + * - new square axis algorithm > + * > + * 2009-02-13 : Disable square axis for right stick > + * - square axis applies to left stick only > + * > + * 2009-02-12 : Scaling for dead zone and square axis support > + * - axes now scale from 0 to 32767 starting at edge of dead zone > + * - increased default dead zone to 8192 > + * - initial square axis support (reliable only with left stick) > + * > + * 2009-02-07 : More wireless 360 controller fixes > + * - removed bulk urb completely > + * - use xpad_send_led_command to set controller number on LED display > + * (wireless 360 controller) > + * - dead_zone is now an adjustable module parameter > + * > + * 2009-02-06 : Axis handling improvements > + * - unified handler for left and right sticks > + * - initial support for dead zones > + * > + * 2009-02-02 : Wireless 360 controller fixes > + * - followed PROTOCOL description from xboxdrv userspace driver > + * - LED and rumble support added for wireless 360 controller (protocol > + * is different from wired!) > + * > + * 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 > + * > + * 2002-07-17 - 0.0.5 : simplified d-pad handling > + * > + * 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 > + * > + * 2002-07-14 - 0.0.3 : rework by Vojtech Pavlik > + * - indentation fixes > + * - usb + input init sequence fixes > + * > + * 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 > + * > + * 2002-06-27 - 0.0.1 : first version, just said "XBOX HID controller" > + * > + */ -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
