[mirror_ubuntu-artful-kernel.git] / drivers / usb / input / xpad.c

/*
 * X-Box gamepad - v0.0.5
 *
 * Copyright (c) 2002 Marko Friedemann <mfr@bmx-chemnitz.de>
 *
 *
 * 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
 *
 * Thanks to:
 *  - ITO Takayuki for providing essential xpad information on his website
 *  - Vojtech Pavlik     - iforce driver / input subsystem
 *  - Greg Kroah-Hartman - usb-skeleton driver
 *
 * TODO:
 *  - fine tune axes
 *  - fix "analog" buttons (reported as digital now)
 *  - get rumble working
 *
 * 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
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/smp_lock.h>
#include <linux/usb/input.h>

#define DRIVER_VERSION "v0.0.5"
#define DRIVER_AUTHOR "Marko Friedemann <mfr@bmx-chemnitz.de>"
#define DRIVER_DESC "X-Box pad driver"

#define XPAD_PKT_LEN 32

static const struct xpad_device {
	u16 idVendor;
	u16 idProduct;
	char *name;
} xpad_device[] = {
	{ 0x045e, 0x0202, "Microsoft X-Box pad (US)" },
	{ 0x045e, 0x0285, "Microsoft X-Box pad (Japan)" },
	{ 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)" },
	{ 0x0000, 0x0000, "X-Box pad" }
};

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 */
};

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 */
	ABS_HAT0X, ABS_HAT0Y,	/* digital pad */
	-1			/* terminating entry */
};

static struct usb_device_id xpad_table [] = {
	{ USB_INTERFACE_INFO('X', 'B', 0) },	/* X-Box USB-IF not approved class */
	{ }
};

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;

	char phys[65];				/* physical device path */
};

/*
 *	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) (((__s16)data[13] << 8) | data[12]));
	input_report_abs(dev, ABS_Y, (__s16) (((__s16)data[15] << 8) | data[14]));

	/* right stick */
	input_report_abs(dev, ABS_RX, (__s16) (((__s16)data[17] << 8) | data[16]));
	input_report_abs(dev, ABS_RY, (__s16) (((__s16)data[19] << 8) | data[18]));

	/* triggers left/right */
	input_report_abs(dev, ABS_Z, data[10]);
	input_report_abs(dev, ABS_RZ, data[11]);

	/* digital pad */
	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) >> 4);
	input_report_key(dev, BTN_BACK, (data[2] & 0x20) >> 5);
	input_report_key(dev, BTN_THUMBL, (data[2] & 0x40) >> 6);
	input_report_key(dev, BTN_THUMBR, data[2] >> 7);

	/* "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);
}

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;
	}

	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);
}

static int xpad_open (struct input_dev *dev)
{
	struct usb_xpad *xpad = dev->private;

	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 = dev->private;

	usb_kill_urb(xpad->irq_in);
}

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;

	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);
	input_dev = input_allocate_device();
	if (!xpad || !input_dev)
		goto fail1;

	xpad->idata = usb_buffer_alloc(udev, XPAD_PKT_LEN,
				       SLAB_ATOMIC, &xpad->idata_dma);
	if (!xpad->idata)
		goto fail1;

	xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL);
	if (!xpad->irq_in)
		goto fail2;

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

	input_dev->name = xpad_device[i].name;
	input_dev->phys = xpad->phys;
	usb_to_input_id(udev, &input_dev->id);
	input_dev->cdev.dev = &intf->dev;
	input_dev->private = xpad;
	input_dev->open = xpad_open;
	input_dev->close = xpad_close;

	input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);

	for (i = 0; xpad_btn[i] >= 0; i++)
		set_bit(xpad_btn[i], input_dev->keybit);

	for (i = 0; xpad_abs[i] >= 0; i++) {

		signed short t = xpad_abs[i];

		set_bit(t, input_dev->absbit);

		switch (t) {
			case ABS_X:
			case ABS_Y:
			case ABS_RX:
			case ABS_RY:	/* the two sticks */
				input_set_abs_params(input_dev, t, -32768, 32767, 16, 128);
				break;
			case ABS_Z:
			case ABS_RZ:	/* the triggers */
				input_set_abs_params(input_dev, t, 0, 255, 0, 0);
				break;
			case ABS_HAT0X:
			case ABS_HAT0Y:	/* the d-pad */
				input_set_abs_params(input_dev, t, -1, 1, 0, 0);
				break;
		}
	}

	ep_irq_in = &intf->cur_altsetting->endpoint[0].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;

	input_register_device(xpad->dev);

	usb_set_intfdata(intf, xpad);
	return 0;

fail2:	usb_buffer_free(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
fail1:	input_free_device(input_dev);
	kfree(xpad);
	return -ENOMEM;

}

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

	usb_set_intfdata(intf, NULL);
	if (xpad) {
		usb_kill_urb(xpad->irq_in);
		input_unregister_device(xpad->dev);
		usb_free_urb(xpad->irq_in);
		usb_buffer_free(interface_to_usbdev(intf), XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
		kfree(xpad);
	}
}

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)
{
	int result = usb_register(&xpad_driver);
	if (result == 0)
		info(DRIVER_DESC ":" DRIVER_VERSION);
	return result;
}

static void __exit usb_xpad_exit(void)
{
	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");
Commit	Line	Data
1da177e4 LT	1	/*
	2	* X-Box gamepad - v0.0.5
	3	*
	4	* Copyright (c) 2002 Marko Friedemann <mfr@bmx-chemnitz.de>
	5	*
	6	*
	7	* This program is free software; you can redistribute it and/or
	8	* modify it under the terms of the GNU General Public License as
	9	* published by the Free Software Foundation; either version 2 of
	10	* the License, or (at your option) any later version.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	20	*
	21	*
	22	* This driver is based on:
	23	* - information from http://euc.jp/periphs/xbox-controller.ja.html
	24	* - the iForce driver drivers/char/joystick/iforce.c
	25	* - the skeleton-driver drivers/usb/usb-skeleton.c
	26	*
	27	* Thanks to:
	28	* - ITO Takayuki for providing essential xpad information on his website
	29	* - Vojtech Pavlik - iforce driver / input subsystem
	30	* - Greg Kroah-Hartman - usb-skeleton driver
	31	*
	32	* TODO:
	33	* - fine tune axes
	34	* - fix "analog" buttons (reported as digital now)
	35	* - get rumble working
	36	*
	37	* History:
	38	*
	39	* 2002-06-27 - 0.0.1 : first version, just said "XBOX HID controller"
	40	*
	41	* 2002-07-02 - 0.0.2 : basic working version
	42	* - all axes and 9 of the 10 buttons work (german InterAct device)
	43	* - the black button does not work
	44	*
	45	* 2002-07-14 - 0.0.3 : rework by Vojtech Pavlik
	46	* - indentation fixes
	47	* - usb + input init sequence fixes
	48	*
	49	* 2002-07-16 - 0.0.4 : minor changes, merge with Vojtech's v0.0.3
	50	* - verified the lack of HID and report descriptors
	51	* - verified that ALL buttons WORK
	52	* - fixed d-pad to axes mapping
	53	*
	54	* 2002-07-17 - 0.0.5 : simplified d-pad handling
	55	*/
	56
1da177e4	57	#include <linux/kernel.h>
1da177e4 LT	58	#include <linux/init.h>
	59	#include <linux/slab.h>
	60	#include <linux/module.h>
	61	#include <linux/smp_lock.h>
ae0dadcf	62	#include <linux/usb/input.h>
1da177e4 LT	63
	64	#define DRIVER_VERSION "v0.0.5"
	65	#define DRIVER_AUTHOR "Marko Friedemann <mfr@bmx-chemnitz.de>"
	66	#define DRIVER_DESC "X-Box pad driver"
	67
	68	#define XPAD_PKT_LEN 32
	69
4c4c9432	70	static const struct xpad_device {
1da177e4 LT	71	u16 idVendor;
	72	u16 idProduct;
	73	char *name;
	74	} xpad_device[] = {
	75	{ 0x045e, 0x0202, "Microsoft X-Box pad (US)" },
	76	{ 0x045e, 0x0285, "Microsoft X-Box pad (Japan)" },
	77	{ 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)" },
	78	{ 0x0000, 0x0000, "X-Box pad" }
	79	};
	80
4c4c9432	81	static const signed short xpad_btn[] = {
1da177e4 LT	82	BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, /* "analog" buttons */
	83	BTN_START, BTN_BACK, BTN_THUMBL, BTN_THUMBR, /* start/back/sticks */
	84	-1 /* terminating entry */
	85	};
	86
4c4c9432	87	static const signed short xpad_abs[] = {
1da177e4 LT	88	ABS_X, ABS_Y, /* left stick */
	89	ABS_RX, ABS_RY, /* right stick */
	90	ABS_Z, ABS_RZ, /* triggers left/right */
	91	ABS_HAT0X, ABS_HAT0Y, /* digital pad */
	92	-1 /* terminating entry */
	93	};
	94
	95	static struct usb_device_id xpad_table [] = {
	96	{ USB_INTERFACE_INFO('X', 'B', 0) }, /* X-Box USB-IF not approved class */
	97	{ }
	98	};
	99
	100	MODULE_DEVICE_TABLE (usb, xpad_table);
	101
	102	struct usb_xpad {
c5b7c7c3	103	struct input_dev dev; / input device interface */
1da177e4	104	struct usb_device udev; / usb device */
05f091ab	105
1da177e4 LT	106	struct urb irq_in; / urb for interrupt in report */
	107	unsigned char idata; / input data */
	108	dma_addr_t idata_dma;
05f091ab	109
1da177e4	110	char phys[65]; /* physical device path */
1da177e4 LT	111	};
	112
	113	/*
	114	* xpad_process_packet
	115	*
	116	* Completes a request by converting the data into events for the
	117	* input subsystem.
	118	*
	119	* The used report descriptor was taken from ITO Takayukis website:
	120	* http://euc.jp/periphs/xbox-controller.ja.html
	121	*/
	122
7d12e780	123	static void xpad_process_packet(struct usb_xpad xpad, u16 cmd, unsigned char data)
1da177e4	124	{
c5b7c7c3	125	struct input_dev *dev = xpad->dev;
1da177e4	126
1da177e4 LT	127	/* left stick */
	128	input_report_abs(dev, ABS_X, (__s16) (((__s16)data[13] << 8) \| data[12]));
	129	input_report_abs(dev, ABS_Y, (__s16) (((__s16)data[15] << 8) \| data[14]));
05f091ab	130
1da177e4 LT	131	/* right stick */
	132	input_report_abs(dev, ABS_RX, (__s16) (((__s16)data[17] << 8) \| data[16]));
	133	input_report_abs(dev, ABS_RY, (__s16) (((__s16)data[19] << 8) \| data[18]));
05f091ab	134
1da177e4 LT	135	/* triggers left/right */
	136	input_report_abs(dev, ABS_Z, data[10]);
	137	input_report_abs(dev, ABS_RZ, data[11]);
05f091ab	138
1da177e4 LT	139	/* digital pad */
	140	input_report_abs(dev, ABS_HAT0X, !!(data[2] & 0x08) - !!(data[2] & 0x04));
	141	input_report_abs(dev, ABS_HAT0Y, !!(data[2] & 0x02) - !!(data[2] & 0x01));
05f091ab	142
1da177e4 LT	143	/* start/back buttons and stick press left/right */
	144	input_report_key(dev, BTN_START, (data[2] & 0x10) >> 4);
	145	input_report_key(dev, BTN_BACK, (data[2] & 0x20) >> 5);
	146	input_report_key(dev, BTN_THUMBL, (data[2] & 0x40) >> 6);
	147	input_report_key(dev, BTN_THUMBR, data[2] >> 7);
05f091ab	148
1da177e4 LT	149	/* "analog" buttons A, B, X, Y */
	150	input_report_key(dev, BTN_A, data[4]);
	151	input_report_key(dev, BTN_B, data[5]);
	152	input_report_key(dev, BTN_X, data[6]);
	153	input_report_key(dev, BTN_Y, data[7]);
05f091ab	154
1da177e4 LT	155	/* "analog" buttons black, white */
	156	input_report_key(dev, BTN_C, data[8]);
	157	input_report_key(dev, BTN_Z, data[9]);
	158
	159	input_sync(dev);
	160	}
	161
7d12e780	162	static void xpad_irq_in(struct urb *urb)
1da177e4 LT	163	{
	164	struct usb_xpad *xpad = urb->context;
	165	int retval;
05f091ab	166
1da177e4 LT	167	switch (urb->status) {
	168	case 0:
	169	/* success */
	170	break;
	171	case -ECONNRESET:
	172	case -ENOENT:
	173	case -ESHUTDOWN:
	174	/* this urb is terminated, clean up */
	175	dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
	176	return;
	177	default:
	178	dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
	179	goto exit;
	180	}
05f091ab	181
7d12e780	182	xpad_process_packet(xpad, 0, xpad->idata);
1da177e4 LT	183
	184	exit:
	185	retval = usb_submit_urb (urb, GFP_ATOMIC);
	186	if (retval)
	187	err ("%s - usb_submit_urb failed with result %d",
	188	__FUNCTION__, retval);
	189	}
	190
	191	static int xpad_open (struct input_dev *dev)
	192	{
	193	struct usb_xpad *xpad = dev->private;
05f091ab	194
1da177e4	195	xpad->irq_in->dev = xpad->udev;
65cde54b	196	if (usb_submit_urb(xpad->irq_in, GFP_KERNEL))
1da177e4	197	return -EIO;
05f091ab	198
1da177e4 LT	199	return 0;
	200	}
	201
	202	static void xpad_close (struct input_dev *dev)
	203	{
	204	struct usb_xpad *xpad = dev->private;
05f091ab	205
65cde54b	206	usb_kill_urb(xpad->irq_in);
1da177e4 LT	207	}
	208
	209	static int xpad_probe(struct usb_interface intf, const struct usb_device_id id)
	210	{
	211	struct usb_device *udev = interface_to_usbdev (intf);
c5b7c7c3 DT	212	struct usb_xpad *xpad;
c5b7c7c3 DT	213	struct input_dev *input_dev;
1da177e4	214	struct usb_endpoint_descriptor *ep_irq_in;
1da177e4	215	int i;
05f091ab	216
1da177e4 LT	217	for (i = 0; xpad_device[i].idVendor; i++) {
	218	if ((le16_to_cpu(udev->descriptor.idVendor) == xpad_device[i].idVendor) &&
	219	(le16_to_cpu(udev->descriptor.idProduct) == xpad_device[i].idProduct))
	220	break;
	221	}
05f091ab	222
c5b7c7c3 DT	223	xpad = kzalloc(sizeof(struct usb_xpad), GFP_KERNEL);
	224	input_dev = input_allocate_device();
	225	if (!xpad \|\| !input_dev)
	226	goto fail1;
05f091ab	227
1da177e4 LT	228	xpad->idata = usb_buffer_alloc(udev, XPAD_PKT_LEN,
1da177e4 LT	229	SLAB_ATOMIC, &xpad->idata_dma);
c5b7c7c3 DT	230	if (!xpad->idata)
c5b7c7c3 DT	231	goto fail1;
1da177e4 LT	232
1da177e4 LT	233	xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL);
c5b7c7c3 DT	234	if (!xpad->irq_in)
c5b7c7c3 DT	235	goto fail2;
05f091ab	236
1da177e4	237	xpad->udev = udev;
c5b7c7c3 DT	238	xpad->dev = input_dev;
	239	usb_make_path(udev, xpad->phys, sizeof(xpad->phys));
	240	strlcat(xpad->phys, "/input0", sizeof(xpad->phys));
05f091ab	241
c5b7c7c3 DT	242	input_dev->name = xpad_device[i].name;
	243	input_dev->phys = xpad->phys;
	244	usb_to_input_id(udev, &input_dev->id);
	245	input_dev->cdev.dev = &intf->dev;
	246	input_dev->private = xpad;
	247	input_dev->open = xpad_open;
	248	input_dev->close = xpad_close;
05f091ab	249
c5b7c7c3	250	input_dev->evbit[0] = BIT(EV_KEY) \| BIT(EV_ABS);
05f091ab	251
1da177e4	252	for (i = 0; xpad_btn[i] >= 0; i++)
c5b7c7c3	253	set_bit(xpad_btn[i], input_dev->keybit);
05f091ab	254
1da177e4	255	for (i = 0; xpad_abs[i] >= 0; i++) {
05f091ab	256
1da177e4	257	signed short t = xpad_abs[i];
05f091ab	258
c5b7c7c3	259	set_bit(t, input_dev->absbit);
05f091ab	260
1da177e4 LT	261	switch (t) {
	262	case ABS_X:
	263	case ABS_Y:
	264	case ABS_RX:
	265	case ABS_RY: /* the two sticks */
c5b7c7c3	266	input_set_abs_params(input_dev, t, -32768, 32767, 16, 128);
1da177e4 LT	267	break;
	268	case ABS_Z:
	269	case ABS_RZ: /* the triggers */
c5b7c7c3	270	input_set_abs_params(input_dev, t, 0, 255, 0, 0);
1da177e4 LT	271	break;
	272	case ABS_HAT0X:
	273	case ABS_HAT0Y: /* the d-pad */
c5b7c7c3	274	input_set_abs_params(input_dev, t, -1, 1, 0, 0);
1da177e4 LT	275	break;
	276	}
	277	}
05f091ab	278
c5b7c7c3 DT	279	ep_irq_in = &intf->cur_altsetting->endpoint[0].desc;
	280	usb_fill_int_urb(xpad->irq_in, udev,
	281	usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress),
	282	xpad->idata, XPAD_PKT_LEN, xpad_irq_in,
	283	xpad, ep_irq_in->bInterval);
	284	xpad->irq_in->transfer_dma = xpad->idata_dma;
	285	xpad->irq_in->transfer_flags \|= URB_NO_TRANSFER_DMA_MAP;
05f091ab	286
c5b7c7c3	287	input_register_device(xpad->dev);
05f091ab	288
1da177e4 LT	289	usb_set_intfdata(intf, xpad);
1da177e4 LT	290	return 0;
c5b7c7c3 DT	291
	292	fail2: usb_buffer_free(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
	293	fail1: input_free_device(input_dev);
	294	kfree(xpad);
	295	return -ENOMEM;
	296
1da177e4 LT	297	}
	298
	299	static void xpad_disconnect(struct usb_interface *intf)
	300	{
	301	struct usb_xpad *xpad = usb_get_intfdata (intf);
05f091ab	302
1da177e4 LT	303	usb_set_intfdata(intf, NULL);
	304	if (xpad) {
	305	usb_kill_urb(xpad->irq_in);
c5b7c7c3	306	input_unregister_device(xpad->dev);
1da177e4 LT	307	usb_free_urb(xpad->irq_in);
	308	usb_buffer_free(interface_to_usbdev(intf), XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
	309	kfree(xpad);
	310	}
	311	}
	312
	313	static struct usb_driver xpad_driver = {
1da177e4 LT	314	.name = "xpad",
	315	.probe = xpad_probe,
	316	.disconnect = xpad_disconnect,
	317	.id_table = xpad_table,
	318	};
	319
	320	static int __init usb_xpad_init(void)
	321	{
	322	int result = usb_register(&xpad_driver);
	323	if (result == 0)
	324	info(DRIVER_DESC ":" DRIVER_VERSION);
	325	return result;
	326	}
	327
	328	static void __exit usb_xpad_exit(void)
	329	{
	330	usb_deregister(&xpad_driver);
	331	}
	332
	333	module_init(usb_xpad_init);
	334	module_exit(usb_xpad_exit);
	335
	336	MODULE_AUTHOR(DRIVER_AUTHOR);
	337	MODULE_DESCRIPTION(DRIVER_DESC);
	338	MODULE_LICENSE("GPL");