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/*

 * X-Box gamepad - v0.0.6

 *

 * 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>

 *

 * 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

 *

 * 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

 */

#include <linux/kernel.h>

#include <linux/init.h>

#include <linux/slab.h>

#include <linux/stat.h>

#include <linux/module.h>

#include <linux/moduleparam.h>

#include <linux/usb/input.h>

#define DRIVER_VERSION "v0.0.6"

#define DRIVER_AUTHOR "Marko Friedemann <mfr@bmx-chemnitz.de>"

#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       -1

#define XTYPE_XBOX        0

#define XTYPE_XBOX360     1

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 },

        { 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },

        { 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },

        { 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, 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, 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_XBOX }

};

static const signed short xpad_btn[] = {

        BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z,       /* "analog" buttons */

        BTN_START, BTN_BACK, BTN_THUMBL, BTN_THUMBR,    /* start/back/sticks */

        -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 (sub)class, so we cannot match it with only

 * USB_INTERFACE_INFO, more to that this device has 4 InterfaceProtocols,

 * but we need only one of them. */

static struct usb_device_id xpad_table [] = {

        { USB_INTERFACE_INFO('X', 'B', 0) },     /* X-Box USB-IF not approved class */

        { USB_DEVICE_INTERFACE_PROTOCOL(0x045e, 0x028e, 1) },   /* X-Box 360 controller */

        { }

};

MODULE_DEVICE_TABLE (usb, xpad_table);

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 */

};

/*

 *      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;

        /* 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 */

        input_report_abs(dev, ABS_Z, data[10]);

        input_report_abs(dev, ABS_RZ, data[11]);

        /* digital pad */

        if (xpad->dpad_mapping == MAP_DPAD_TO_AXES) {

                input_report_abs(dev, ABS_HAT0X,

                                 !!(data[2] & 0x08) - !!(data[2] & 0x04));

                input_report_abs(dev, ABS_HAT0Y,

                                 !!(data[2] & 0x02) - !!(data[2] & 0x01));

        } else /* xpad->dpad_mapping == MAP_DPAD_TO_BUTTONS */ {

                input_report_key(dev, BTN_LEFT,  data[2] & 0x04);

                input_report_key(dev, BTN_RIGHT, data[2] & 0x08);

                input_report_key(dev, BTN_0,     data[2] & 0x01); /* up */

                input_report_key(dev, BTN_1,     data[2] & 0x02); /* down */

        }

        /* start/back buttons and stick press left/right */

        input_report_key(dev, BTN_START,  data[2] & 0x10);

        input_report_key(dev, BTN_BACK,   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,

                                   u16 cmd, unsigned char *data)

{

        struct input_dev *dev = xpad->dev;

        /* digital pad */

        if (xpad->dpad_mapping == MAP_DPAD_TO_AXES) {

                input_report_abs(dev, ABS_HAT0X,

                                 !!(data[2] & 0x08) - !!(data[2] & 0x04));

                input_report_abs(dev, ABS_HAT0Y,

                                 !!(data[2] & 0x02) - !!(data[2] & 0x01));

        } else if (xpad->dpad_mapping == MAP_DPAD_TO_BUTTONS) {

                /* dpad as buttons (right, left, down, up) */

                input_report_key(dev, BTN_LEFT, data[2] & 0x04);

                input_report_key(dev, BTN_RIGHT, data[2] & 0x08);

                input_report_key(dev, BTN_0, data[2] & 0x01);   /* up */

                input_report_key(dev, BTN_1, data[2] & 0x02);   /* down */

        }

        /* start/back buttons */

        input_report_key(dev, BTN_START,  data[2] & 0x10);

        input_report_key(dev, BTN_BACK,   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);

        /* 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 */

        input_report_abs(dev, ABS_Z, data[4]);

        input_report_abs(dev, ABS_RZ, data[5]);

        input_sync(dev);

}

static void xpad_irq_in(struct urb *urb)

{

        struct usb_xpad *xpad = urb->context;

        int retval;

        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",

                        __FUNCTION__, urb->status);

                return;

        default:

                dbg("%s - nonzero urb status received: %d",

                        __FUNCTION__, urb->status);

                goto exit;

        }

        if (xpad->xtype == XTYPE_XBOX360)

                xpad360_process_packet(xpad, 0, xpad->idata);

        else

                xpad_process_packet(xpad, 0, xpad->idata);

exit:

        retval = usb_submit_urb (urb, GFP_ATOMIC);

        if (retval)

                err ("%s - usb_submit_urb failed with result %d",

                     __FUNCTION__, retval);

}

#if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS)

static void xpad_irq_out(struct urb *urb)

{

        int retval;

        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",

                                __FUNCTION__, urb->status);

                        return;

                default:

                        dbg("%s - nonzero urb status received: %d",

                                __FUNCTION__, urb->status);

                        goto exit;

        }

exit:

        retval = usb_submit_urb(urb, GFP_ATOMIC);

        if (retval)

                err("%s - usb_submit_urb failed with result %d",

                    __FUNCTION__, 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)

                return 0;

        xpad->odata = usb_buffer_alloc(xpad->udev, XPAD_PKT_LEN,

                                       GFP_ATOMIC, &xpad->odata_dma );

        if (!xpad->odata)

                goto fail1;

        mutex_init(&xpad->odata_mutex);

        xpad->irq_out = usb_alloc_urb(0, GFP_KERNEL);

        if (!xpad->irq_out)

                goto fail2;

        ep_irq_out = &intf->cur_altsetting->endpoint[1].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_buffer_free(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_XBOX360)

                usb_kill_urb(xpad->irq_out);

}

static void xpad_deinit_output(struct usb_xpad *xpad)

{

        if (xpad->xtype == XTYPE_XBOX360) {

                usb_free_urb(xpad->irq_out);

                usb_buffer_free(xpad->udev, XPAD_PKT_LEN,

                                xpad->odata, xpad->odata_dma);

        }

}

#else

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

static int xpad_play_effect(struct input_dev *dev, void *data,

                            struct ff_effect *effect)

{

        struct usb_xpad *xpad = input_get_drvdata(dev);

        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;

                usb_submit_urb(xpad->irq_out, GFP_KERNEL);

        }

        return 0;

}

static int xpad_init_ff(struct usb_xpad *xpad)

{

        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>

struct xpad_led {

        char name[16];

        struct led_classdev led_cdev;

        struct usb_xpad *xpad;

};

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;

                usb_submit_urb(xpad->irq_out, GFP_KERNEL);

                mutex_unlock(&xpad->odata_mutex);

        }

}

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)

{

        static atomic_t led_seq = ATOMIC_INIT(0);

        long led_no;

        struct xpad_led *led;

        struct led_classdev *led_cdev;

        int error;

        if (xpad->xtype != XTYPE_XBOX360)

                return 0;

        xpad->led = led = kzalloc(sizeof(struct xpad_led), GFP_KERNEL);

        if (!led)

                return -ENOMEM;

        led_no = (long)atomic_inc_return(&led_seq) - 1;

        snprintf(led->name, sizeof(led->name), "xpad%ld", led_no);

        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) {

                kfree(led);

                xpad->led = NULL;

                return error;

        }

        /*

         * Light up the segment corresponding to controller number

         */

        xpad_send_led_command(xpad, (led_no % 4) + 2);

        return 0;

}

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);

                kfree(xpad_led->name);

        }

}

#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_open(struct input_dev *dev)

{

        struct usb_xpad *xpad = input_get_drvdata(dev);

        xpad->irq_in->dev = xpad->udev;

        if (usb_submit_urb(xpad->irq_in, GFP_KERNEL))

                return -EIO;

        return 0;

}

static void xpad_close(struct input_dev *dev)

{

        struct usb_xpad *xpad = input_get_drvdata(dev);

        usb_kill_urb(xpad->irq_in);

        xpad_stop_output(xpad);

}

static void xpad_set_up_abs(struct input_dev *input_dev, signed short abs)

{

        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 */

                input_set_abs_params(input_dev, abs, 0, 255, 0, 0);

                break;

        case ABS_HAT0X:

        case ABS_HAT0Y: /* the d-pad (only if MAP_DPAD_TO_AXES) */

                input_set_abs_params(input_dev, abs, -1, 1, 0, 0);

                break;

        }

}

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 input_dev *input_dev;

        struct usb_endpoint_descriptor *ep_irq_in;

        int i;

        int error = -ENOMEM;

        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;