[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/config.h>
#include <linux/kernel.h>
#include <linux/input.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/smp_lock.h>
#include <linux/usb.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 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 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 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 pt_regs *regs)
{
	struct input_dev *dev = &xpad->dev;

	input_regs(dev, regs);

	/* 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 pt_regs *regs)
{
	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, regs);

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 = NULL;
	struct usb_endpoint_descriptor *ep_irq_in;
	char path[64];
	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;
	}

	if ((xpad = kmalloc (sizeof(struct usb_xpad), GFP_KERNEL)) == NULL) {
		err("cannot allocate memory for new pad");
		return -ENOMEM;
	}
	memset(xpad, 0, sizeof(struct usb_xpad));

	xpad->idata = usb_buffer_alloc(udev, XPAD_PKT_LEN,
				       SLAB_ATOMIC, &xpad->idata_dma);
	if (!xpad->idata) {
		kfree(xpad);
		return -ENOMEM;
	}

	xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL);
        if (!xpad->irq_in) {
		err("cannot allocate memory for new pad irq urb");
		usb_buffer_free(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
                kfree(xpad);
		return -ENOMEM;
        }

	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;

	xpad->udev = udev;

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

	usb_make_path(udev, path, 64);
	snprintf(xpad->phys, 64,  "%s/input0", path);

	xpad->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);

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

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

		signed short t = xpad_abs[i];

		set_bit(t, xpad->dev.absbit);

		switch (t) {
			case ABS_X:
			case ABS_Y:
			case ABS_RX:
			case ABS_RY:	/* the two sticks */
				xpad->dev.absmax[t] =  32767;
				xpad->dev.absmin[t] = -32768;
				xpad->dev.absflat[t] = 128;
				xpad->dev.absfuzz[t] = 16;
				break;
			case ABS_Z:
			case ABS_RZ:	/* the triggers */
				xpad->dev.absmax[t] = 255;
				xpad->dev.absmin[t] = 0;
				break;
			case ABS_HAT0X:
			case ABS_HAT0Y:	/* the d-pad */
				xpad->dev.absmax[t] =  1;
				xpad->dev.absmin[t] = -1;
				break;
		}
	}

	input_register_device(&xpad->dev);

	printk(KERN_INFO "input: %s on %s", xpad->dev.name, path);

	usb_set_intfdata(intf, xpad);
	return 0;
}

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 = {
	.owner		= THIS_MODULE,
	.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
	57	#include <linux/config.h>
	58	#include <linux/kernel.h>
	59	#include <linux/input.h>
	60	#include <linux/init.h>
	61	#include <linux/slab.h>
	62	#include <linux/module.h>
	63	#include <linux/smp_lock.h>
	64	#include <linux/usb.h>
16a334c0	65	#include <linux/usb_input.h>
1da177e4 LT	66
	67	#define DRIVER_VERSION "v0.0.5"
	68	#define DRIVER_AUTHOR "Marko Friedemann <mfr@bmx-chemnitz.de>"
	69	#define DRIVER_DESC "X-Box pad driver"
	70
	71	#define XPAD_PKT_LEN 32
	72
	73	static struct xpad_device {
	74	u16 idVendor;
	75	u16 idProduct;
	76	char *name;
	77	} xpad_device[] = {
	78	{ 0x045e, 0x0202, "Microsoft X-Box pad (US)" },
	79	{ 0x045e, 0x0285, "Microsoft X-Box pad (Japan)" },
	80	{ 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)" },
	81	{ 0x0000, 0x0000, "X-Box pad" }
	82	};
	83
	84	static signed short xpad_btn[] = {
	85	BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, /* "analog" buttons */
	86	BTN_START, BTN_BACK, BTN_THUMBL, BTN_THUMBR, /* start/back/sticks */
	87	-1 /* terminating entry */
	88	};
	89
	90	static signed short xpad_abs[] = {
	91	ABS_X, ABS_Y, /* left stick */
	92	ABS_RX, ABS_RY, /* right stick */
	93	ABS_Z, ABS_RZ, /* triggers left/right */
	94	ABS_HAT0X, ABS_HAT0Y, /* digital pad */
	95	-1 /* terminating entry */
	96	};
	97
	98	static struct usb_device_id xpad_table [] = {
	99	{ USB_INTERFACE_INFO('X', 'B', 0) }, /* X-Box USB-IF not approved class */
	100	{ }
	101	};
	102
	103	MODULE_DEVICE_TABLE (usb, xpad_table);
	104
	105	struct usb_xpad {
	106	struct input_dev dev; /* input device interface */
	107	struct usb_device udev; / usb device */
05f091ab	108
1da177e4 LT	109	struct urb irq_in; / urb for interrupt in report */
	110	unsigned char idata; / input data */
	111	dma_addr_t idata_dma;
05f091ab	112
1da177e4	113	char phys[65]; /* physical device path */
1da177e4 LT	114	};
	115
	116	/*
	117	* xpad_process_packet
	118	*
	119	* Completes a request by converting the data into events for the
	120	* input subsystem.
	121	*
	122	* The used report descriptor was taken from ITO Takayukis website:
	123	* http://euc.jp/periphs/xbox-controller.ja.html
	124	*/
	125
	126	static void xpad_process_packet(struct usb_xpad xpad, u16 cmd, unsigned char data, struct pt_regs *regs)
	127	{
	128	struct input_dev *dev = &xpad->dev;
	129
	130	input_regs(dev, regs);
05f091ab	131
1da177e4 LT	132	/* left stick */
	133	input_report_abs(dev, ABS_X, (__s16) (((__s16)data[13] << 8) \| data[12]));
	134	input_report_abs(dev, ABS_Y, (__s16) (((__s16)data[15] << 8) \| data[14]));
05f091ab	135
1da177e4 LT	136	/* right stick */
	137	input_report_abs(dev, ABS_RX, (__s16) (((__s16)data[17] << 8) \| data[16]));
	138	input_report_abs(dev, ABS_RY, (__s16) (((__s16)data[19] << 8) \| data[18]));
05f091ab	139
1da177e4 LT	140	/* triggers left/right */
	141	input_report_abs(dev, ABS_Z, data[10]);
	142	input_report_abs(dev, ABS_RZ, data[11]);
05f091ab	143
1da177e4 LT	144	/* digital pad */
	145	input_report_abs(dev, ABS_HAT0X, !!(data[2] & 0x08) - !!(data[2] & 0x04));
	146	input_report_abs(dev, ABS_HAT0Y, !!(data[2] & 0x02) - !!(data[2] & 0x01));
05f091ab	147
1da177e4 LT	148	/* start/back buttons and stick press left/right */
	149	input_report_key(dev, BTN_START, (data[2] & 0x10) >> 4);
	150	input_report_key(dev, BTN_BACK, (data[2] & 0x20) >> 5);
	151	input_report_key(dev, BTN_THUMBL, (data[2] & 0x40) >> 6);
	152	input_report_key(dev, BTN_THUMBR, data[2] >> 7);
05f091ab	153
1da177e4 LT	154	/* "analog" buttons A, B, X, Y */
	155	input_report_key(dev, BTN_A, data[4]);
	156	input_report_key(dev, BTN_B, data[5]);
	157	input_report_key(dev, BTN_X, data[6]);
	158	input_report_key(dev, BTN_Y, data[7]);
05f091ab	159
1da177e4 LT	160	/* "analog" buttons black, white */
	161	input_report_key(dev, BTN_C, data[8]);
	162	input_report_key(dev, BTN_Z, data[9]);
	163
	164	input_sync(dev);
	165	}
	166
	167	static void xpad_irq_in(struct urb urb, struct pt_regs regs)
	168	{
	169	struct usb_xpad *xpad = urb->context;
	170	int retval;
05f091ab	171
1da177e4 LT	172	switch (urb->status) {
	173	case 0:
	174	/* success */
	175	break;
	176	case -ECONNRESET:
	177	case -ENOENT:
	178	case -ESHUTDOWN:
	179	/* this urb is terminated, clean up */
	180	dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
	181	return;
	182	default:
	183	dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
	184	goto exit;
	185	}
05f091ab	186
1da177e4 LT	187	xpad_process_packet(xpad, 0, xpad->idata, regs);
	188
	189	exit:
	190	retval = usb_submit_urb (urb, GFP_ATOMIC);
	191	if (retval)
	192	err ("%s - usb_submit_urb failed with result %d",
	193	__FUNCTION__, retval);
	194	}
	195
	196	static int xpad_open (struct input_dev *dev)
	197	{
	198	struct usb_xpad *xpad = dev->private;
05f091ab	199
1da177e4	200	xpad->irq_in->dev = xpad->udev;
65cde54b	201	if (usb_submit_urb(xpad->irq_in, GFP_KERNEL))
1da177e4	202	return -EIO;
05f091ab	203
1da177e4 LT	204	return 0;
	205	}
	206
	207	static void xpad_close (struct input_dev *dev)
	208	{
	209	struct usb_xpad *xpad = dev->private;
05f091ab	210
65cde54b	211	usb_kill_urb(xpad->irq_in);
1da177e4 LT	212	}
	213
	214	static int xpad_probe(struct usb_interface intf, const struct usb_device_id id)
	215	{
	216	struct usb_device *udev = interface_to_usbdev (intf);
	217	struct usb_xpad *xpad = NULL;
	218	struct usb_endpoint_descriptor *ep_irq_in;
	219	char path[64];
	220	int i;
05f091ab	221
1da177e4 LT	222	for (i = 0; xpad_device[i].idVendor; i++) {
	223	if ((le16_to_cpu(udev->descriptor.idVendor) == xpad_device[i].idVendor) &&
	224	(le16_to_cpu(udev->descriptor.idProduct) == xpad_device[i].idProduct))
	225	break;
	226	}
05f091ab	227
1da177e4 LT	228	if ((xpad = kmalloc (sizeof(struct usb_xpad), GFP_KERNEL)) == NULL) {
	229	err("cannot allocate memory for new pad");
	230	return -ENOMEM;
	231	}
	232	memset(xpad, 0, sizeof(struct usb_xpad));
05f091ab	233
1da177e4 LT	234	xpad->idata = usb_buffer_alloc(udev, XPAD_PKT_LEN,
	235	SLAB_ATOMIC, &xpad->idata_dma);
	236	if (!xpad->idata) {
	237	kfree(xpad);
	238	return -ENOMEM;
	239	}
	240
	241	xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL);
	242	if (!xpad->irq_in) {
	243	err("cannot allocate memory for new pad irq urb");
	244	usb_buffer_free(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
	245	kfree(xpad);
	246	return -ENOMEM;
	247	}
05f091ab	248
1da177e4	249	ep_irq_in = &intf->cur_altsetting->endpoint[0].desc;
05f091ab	250
1da177e4 LT	251	usb_fill_int_urb(xpad->irq_in, udev,
	252	usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress),
	253	xpad->idata, XPAD_PKT_LEN, xpad_irq_in,
	254	xpad, ep_irq_in->bInterval);
	255	xpad->irq_in->transfer_dma = xpad->idata_dma;
	256	xpad->irq_in->transfer_flags \|= URB_NO_TRANSFER_DMA_MAP;
05f091ab	257
1da177e4	258	xpad->udev = udev;
05f091ab	259
16a334c0	260	usb_to_input_id(udev, &xpad->dev.id);
1da177e4 LT	261	xpad->dev.dev = &intf->dev;
	262	xpad->dev.private = xpad;
	263	xpad->dev.name = xpad_device[i].name;
	264	xpad->dev.phys = xpad->phys;
	265	xpad->dev.open = xpad_open;
	266	xpad->dev.close = xpad_close;
05f091ab	267
1da177e4 LT	268	usb_make_path(udev, path, 64);
1da177e4 LT	269	snprintf(xpad->phys, 64, "%s/input0", path);
05f091ab	270
1da177e4	271	xpad->dev.evbit[0] = BIT(EV_KEY) \| BIT(EV_ABS);
05f091ab	272
1da177e4 LT	273	for (i = 0; xpad_btn[i] >= 0; i++)
1da177e4 LT	274	set_bit(xpad_btn[i], xpad->dev.keybit);
05f091ab	275
1da177e4	276	for (i = 0; xpad_abs[i] >= 0; i++) {
05f091ab	277
1da177e4	278	signed short t = xpad_abs[i];
05f091ab	279
1da177e4	280	set_bit(t, xpad->dev.absbit);
05f091ab	281
1da177e4 LT	282	switch (t) {
	283	case ABS_X:
	284	case ABS_Y:
	285	case ABS_RX:
	286	case ABS_RY: /* the two sticks */
	287	xpad->dev.absmax[t] = 32767;
	288	xpad->dev.absmin[t] = -32768;
	289	xpad->dev.absflat[t] = 128;
	290	xpad->dev.absfuzz[t] = 16;
	291	break;
	292	case ABS_Z:
	293	case ABS_RZ: /* the triggers */
	294	xpad->dev.absmax[t] = 255;
	295	xpad->dev.absmin[t] = 0;
	296	break;
	297	case ABS_HAT0X:
	298	case ABS_HAT0Y: /* the d-pad */
	299	xpad->dev.absmax[t] = 1;
	300	xpad->dev.absmin[t] = -1;
	301	break;
	302	}
	303	}
05f091ab	304
1da177e4	305	input_register_device(&xpad->dev);
05f091ab	306
1da177e4	307	printk(KERN_INFO "input: %s on %s", xpad->dev.name, path);
05f091ab	308
1da177e4 LT	309	usb_set_intfdata(intf, xpad);
	310	return 0;
	311	}
	312
	313	static void xpad_disconnect(struct usb_interface *intf)
	314	{
	315	struct usb_xpad *xpad = usb_get_intfdata (intf);
05f091ab	316
1da177e4 LT	317	usb_set_intfdata(intf, NULL);
	318	if (xpad) {
	319	usb_kill_urb(xpad->irq_in);
	320	input_unregister_device(&xpad->dev);
	321	usb_free_urb(xpad->irq_in);
	322	usb_buffer_free(interface_to_usbdev(intf), XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
	323	kfree(xpad);
	324	}
	325	}
	326
	327	static struct usb_driver xpad_driver = {
	328	.owner = THIS_MODULE,
	329	.name = "xpad",
	330	.probe = xpad_probe,
	331	.disconnect = xpad_disconnect,
	332	.id_table = xpad_table,
	333	};
	334
	335	static int __init usb_xpad_init(void)
	336	{
	337	int result = usb_register(&xpad_driver);
	338	if (result == 0)
	339	info(DRIVER_DESC ":" DRIVER_VERSION);
	340	return result;
	341	}
	342
	343	static void __exit usb_xpad_exit(void)
	344	{
	345	usb_deregister(&xpad_driver);
	346	}
	347
	348	module_init(usb_xpad_init);
	349	module_exit(usb_xpad_exit);
	350
	351	MODULE_AUTHOR(DRIVER_AUTHOR);
	352	MODULE_DESCRIPTION(DRIVER_DESC);
	353	MODULE_LICENSE("GPL");