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

/*
 * X-Box gamepad - v0.0.6
 *
 * Copyright (c) 2002 Marko Friedemann <mfr@bmx-chemnitz.de>
 *               2005 Dominic Cerquetti <binary1230@yahoo.com>
 *               2006 Adam Buchbinder <adam.buchbinder@gmail.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 *
 * This driver is based on:
 *  - information from     http://euc.jp/periphs/xbox-controller.ja.html
 *  - the iForce driver    drivers/char/joystick/iforce.c
 *  - the skeleton-driver  drivers/usb/usb-skeleton.c
 *
 * 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 (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
 */

#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/smp_lock.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

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;
} xpad_device[] = {
	{ 0x045e, 0x0202, "Microsoft X-Box pad v1 (US)", MAP_DPAD_TO_AXES },
	{ 0x045e, 0x0289, "Microsoft X-Box pad v2 (US)", MAP_DPAD_TO_AXES },
	{ 0x045e, 0x0285, "Microsoft X-Box pad (Japan)", MAP_DPAD_TO_AXES },
	{ 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)", MAP_DPAD_TO_AXES },
	{ 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", MAP_DPAD_TO_BUTTONS },
	{ 0x0000, 0x0000, "Generic X-Box pad", MAP_DPAD_UNKNOWN }
};

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 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 */
};

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 */

	int dpad_mapping;		/* map d-pad to buttons or to axes */
};

/*
 *	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 */
	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);
}

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 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;

	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->dpad_mapping = xpad_device[i].dpad_mapping;
	if (xpad->dpad_mapping == MAP_DPAD_UNKNOWN)
		xpad->dpad_mapping = dpad_to_buttons;
	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);

	/* set up buttons */
	for (i = 0; xpad_btn[i] >= 0; i++)
		set_bit(xpad_btn[i], input_dev->keybit);
	if (xpad->dpad_mapping == MAP_DPAD_TO_BUTTONS)
		for (i = 0; xpad_btn_pad[i] >= 0; i++)
			set_bit(xpad_btn_pad[i], input_dev->keybit);

	/* set up axes */
	for (i = 0; xpad_abs[i] >= 0; i++)
		xpad_set_up_abs(input_dev, xpad_abs[i]);
	if (xpad->dpad_mapping == MAP_DPAD_TO_AXES)
		for (i = 0; xpad_abs_pad[i] >= 0; i++)
		    xpad_set_up_abs(input_dev, xpad_abs_pad[i]);

	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	1	/*
deb8ee43	2	* X-Box gamepad - v0.0.6
1da177e4 LT	3	*
1da177e4 LT	4	* Copyright (c) 2002 Marko Friedemann <mfr@bmx-chemnitz.de>
deb8ee43 DC	5	* 2005 Dominic Cerquetti <binary1230@yahoo.com>
deb8ee43 DC	6	* 2006 Adam Buchbinder <adam.buchbinder@gmail.com>
1da177e4 LT	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation; either version 2 of
	11	* the License, or (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	21	*
	22	*
	23	* This driver is based on:
	24	* - information from http://euc.jp/periphs/xbox-controller.ja.html
	25	* - the iForce driver drivers/char/joystick/iforce.c
	26	* - the skeleton-driver drivers/usb/usb-skeleton.c
	27	*
	28	* Thanks to:
	29	* - ITO Takayuki for providing essential xpad information on his website
	30	* - Vojtech Pavlik - iforce driver / input subsystem
	31	* - Greg Kroah-Hartman - usb-skeleton driver
	32	*
	33	* TODO:
deb8ee43	34	* - fine tune axes (especially trigger axes)
1da177e4 LT	35	* - fix "analog" buttons (reported as digital now)
1da177e4 LT	36	* - get rumble working
deb8ee43	37	* - need USB IDs for other dance pads
1da177e4 LT	38	*
	39	* History:
	40	*
	41	* 2002-06-27 - 0.0.1 : first version, just said "XBOX HID controller"
	42	*
	43	* 2002-07-02 - 0.0.2 : basic working version
	44	* - all axes and 9 of the 10 buttons work (german InterAct device)
	45	* - the black button does not work
	46	*
	47	* 2002-07-14 - 0.0.3 : rework by Vojtech Pavlik
	48	* - indentation fixes
	49	* - usb + input init sequence fixes
	50	*
	51	* 2002-07-16 - 0.0.4 : minor changes, merge with Vojtech's v0.0.3
	52	* - verified the lack of HID and report descriptors
	53	* - verified that ALL buttons WORK
	54	* - fixed d-pad to axes mapping
	55	*
	56	* 2002-07-17 - 0.0.5 : simplified d-pad handling
	57	*/
	58
1da177e4	59	#include <linux/kernel.h>
1da177e4 LT	60	#include <linux/init.h>
1da177e4 LT	61	#include <linux/slab.h>
deb8ee43	62	#include <linux/stat.h>
1da177e4	63	#include <linux/module.h>
deb8ee43	64	#include <linux/moduleparam.h>
1da177e4	65	#include <linux/smp_lock.h>
ae0dadcf	66	#include <linux/usb/input.h>
1da177e4	67
deb8ee43	68	#define DRIVER_VERSION "v0.0.6"
1da177e4 LT	69	#define DRIVER_AUTHOR "Marko Friedemann <mfr@bmx-chemnitz.de>"
	70	#define DRIVER_DESC "X-Box pad driver"
	71
	72	#define XPAD_PKT_LEN 32
	73
deb8ee43 DC	74	/* xbox d-pads should map to buttons, as is required for DDR pads
	75	but we map them to axes when possible to simplify things */
	76	#define MAP_DPAD_TO_BUTTONS 0
	77	#define MAP_DPAD_TO_AXES 1
	78	#define MAP_DPAD_UNKNOWN -1
	79
	80	static int dpad_to_buttons;
	81	module_param(dpad_to_buttons, bool, S_IRUGO);
	82	MODULE_PARM_DESC(dpad_to_buttons, "Map D-PAD to buttons rather than axes for unknown pads");
	83
4c4c9432	84	static const struct xpad_device {
1da177e4 LT	85	u16 idVendor;
	86	u16 idProduct;
	87	char *name;
deb8ee43	88	u8 dpad_mapping;
1da177e4	89	} xpad_device[] = {
deb8ee43 DC	90	{ 0x045e, 0x0202, "Microsoft X-Box pad v1 (US)", MAP_DPAD_TO_AXES },
	91	{ 0x045e, 0x0289, "Microsoft X-Box pad v2 (US)", MAP_DPAD_TO_AXES },
	92	{ 0x045e, 0x0285, "Microsoft X-Box pad (Japan)", MAP_DPAD_TO_AXES },
	93	{ 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)", MAP_DPAD_TO_AXES },
	94	{ 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", MAP_DPAD_TO_BUTTONS },
	95	{ 0x0000, 0x0000, "Generic X-Box pad", MAP_DPAD_UNKNOWN }
1da177e4 LT	96	};
1da177e4 LT	97
4c4c9432	98	static const signed short xpad_btn[] = {
1da177e4 LT	99	BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, /* "analog" buttons */
	100	BTN_START, BTN_BACK, BTN_THUMBL, BTN_THUMBR, /* start/back/sticks */
	101	-1 /* terminating entry */
	102	};
	103
deb8ee43 DC	104	/* only used if MAP_DPAD_TO_BUTTONS */
	105	static const signed short xpad_btn_pad[] = {
	106	BTN_LEFT, BTN_RIGHT, /* d-pad left, right */
	107	BTN_0, BTN_1, /* d-pad up, down (XXX names??) */
	108	-1 /* terminating entry */
	109	};
	110
4c4c9432	111	static const signed short xpad_abs[] = {
1da177e4 LT	112	ABS_X, ABS_Y, /* left stick */
	113	ABS_RX, ABS_RY, /* right stick */
	114	ABS_Z, ABS_RZ, /* triggers left/right */
deb8ee43 DC	115	-1 /* terminating entry */
	116	};
	117
	118	/* only used if MAP_DPAD_TO_AXES */
	119	static const signed short xpad_abs_pad[] = {
	120	ABS_HAT0X, ABS_HAT0Y, /* d-pad axes */
1da177e4 LT	121	-1 /* terminating entry */
	122	};
	123
	124	static struct usb_device_id xpad_table [] = {
	125	{ USB_INTERFACE_INFO('X', 'B', 0) }, /* X-Box USB-IF not approved class */
	126	{ }
	127	};
	128
	129	MODULE_DEVICE_TABLE (usb, xpad_table);
	130
	131	struct usb_xpad {
deb8ee43 DC	132	struct input_dev dev; / input device interface */
deb8ee43 DC	133	struct usb_device udev; / usb device */
05f091ab	134
deb8ee43 DC	135	struct urb irq_in; / urb for interrupt in report */
deb8ee43 DC	136	unsigned char idata; / input data */
1da177e4	137	dma_addr_t idata_dma;
05f091ab	138
deb8ee43 DC	139	char phys[65]; /* physical device path */
	140
	141	int dpad_mapping; /* map d-pad to buttons or to axes */
1da177e4 LT	142	};
	143
	144	/*
	145	* xpad_process_packet
	146	*
	147	* Completes a request by converting the data into events for the
	148	* input subsystem.
	149	*
	150	* The used report descriptor was taken from ITO Takayukis website:
	151	* http://euc.jp/periphs/xbox-controller.ja.html
	152	*/
	153
7d12e780	154	static void xpad_process_packet(struct usb_xpad xpad, u16 cmd, unsigned char data)
1da177e4	155	{
c5b7c7c3	156	struct input_dev *dev = xpad->dev;
1da177e4	157
1da177e4 LT	158	/* left stick */
	159	input_report_abs(dev, ABS_X, (__s16) (((__s16)data[13] << 8) \| data[12]));
	160	input_report_abs(dev, ABS_Y, (__s16) (((__s16)data[15] << 8) \| data[14]));
05f091ab	161
1da177e4 LT	162	/* right stick */
	163	input_report_abs(dev, ABS_RX, (__s16) (((__s16)data[17] << 8) \| data[16]));
	164	input_report_abs(dev, ABS_RY, (__s16) (((__s16)data[19] << 8) \| data[18]));
05f091ab	165
1da177e4 LT	166	/* triggers left/right */
	167	input_report_abs(dev, ABS_Z, data[10]);
	168	input_report_abs(dev, ABS_RZ, data[11]);
05f091ab	169
1da177e4	170	/* digital pad */
deb8ee43 DC	171	if (xpad->dpad_mapping == MAP_DPAD_TO_AXES) {
	172	input_report_abs(dev, ABS_HAT0X, !!(data[2] & 0x08) - !!(data[2] & 0x04));
	173	input_report_abs(dev, ABS_HAT0Y, !!(data[2] & 0x02) - !!(data[2] & 0x01));
	174	} else /* xpad->dpad_mapping == MAP_DPAD_TO_BUTTONS */ {
	175	input_report_key(dev, BTN_LEFT, data[2] & 0x04);
	176	input_report_key(dev, BTN_RIGHT, data[2] & 0x08);
	177	input_report_key(dev, BTN_0, data[2] & 0x01); // up
	178	input_report_key(dev, BTN_1, data[2] & 0x02); // down
	179	}
05f091ab	180
1da177e4	181	/* start/back buttons and stick press left/right */
deb8ee43 DC	182	input_report_key(dev, BTN_START, data[2] & 0x10);
	183	input_report_key(dev, BTN_BACK, data[2] & 0x20);
	184	input_report_key(dev, BTN_THUMBL, data[2] & 0x40);
	185	input_report_key(dev, BTN_THUMBR, data[2] & 0x80);
05f091ab	186
1da177e4 LT	187	/* "analog" buttons A, B, X, Y */
	188	input_report_key(dev, BTN_A, data[4]);
	189	input_report_key(dev, BTN_B, data[5]);
	190	input_report_key(dev, BTN_X, data[6]);
	191	input_report_key(dev, BTN_Y, data[7]);
05f091ab	192
1da177e4 LT	193	/* "analog" buttons black, white */
	194	input_report_key(dev, BTN_C, data[8]);
	195	input_report_key(dev, BTN_Z, data[9]);
	196
	197	input_sync(dev);
	198	}
	199
7d12e780	200	static void xpad_irq_in(struct urb *urb)
1da177e4 LT	201	{
	202	struct usb_xpad *xpad = urb->context;
	203	int retval;
05f091ab	204
1da177e4 LT	205	switch (urb->status) {
	206	case 0:
	207	/* success */
	208	break;
	209	case -ECONNRESET:
	210	case -ENOENT:
	211	case -ESHUTDOWN:
	212	/* this urb is terminated, clean up */
	213	dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
	214	return;
	215	default:
	216	dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
	217	goto exit;
	218	}
05f091ab	219
7d12e780	220	xpad_process_packet(xpad, 0, xpad->idata);
1da177e4 LT	221
	222	exit:
	223	retval = usb_submit_urb (urb, GFP_ATOMIC);
	224	if (retval)
	225	err ("%s - usb_submit_urb failed with result %d",
	226	__FUNCTION__, retval);
	227	}
	228
	229	static int xpad_open (struct input_dev *dev)
	230	{
	231	struct usb_xpad *xpad = dev->private;
05f091ab	232
1da177e4	233	xpad->irq_in->dev = xpad->udev;
65cde54b	234	if (usb_submit_urb(xpad->irq_in, GFP_KERNEL))
1da177e4	235	return -EIO;
05f091ab	236
1da177e4 LT	237	return 0;
	238	}
	239
	240	static void xpad_close (struct input_dev *dev)
	241	{
	242	struct usb_xpad *xpad = dev->private;
05f091ab	243
65cde54b	244	usb_kill_urb(xpad->irq_in);
1da177e4 LT	245	}
1da177e4 LT	246
deb8ee43 DC	247	static void xpad_set_up_abs(struct input_dev *input_dev, signed short abs)
	248	{
	249	set_bit(abs, input_dev->absbit);
	250
	251	switch (abs) {
	252	case ABS_X:
	253	case ABS_Y:
	254	case ABS_RX:
	255	case ABS_RY: /* the two sticks */
	256	input_set_abs_params(input_dev, abs, -32768, 32767, 16, 128);
	257	break;
	258	case ABS_Z:
	259	case ABS_RZ: /* the triggers */
	260	input_set_abs_params(input_dev, abs, 0, 255, 0, 0);
	261	break;
	262	case ABS_HAT0X:
	263	case ABS_HAT0Y: /* the d-pad (only if MAP_DPAD_TO_AXES) */
	264	input_set_abs_params(input_dev, abs, -1, 1, 0, 0);
	265	break;
	266	}
	267	}
	268
1da177e4 LT	269	static int xpad_probe(struct usb_interface intf, const struct usb_device_id id)
	270	{
	271	struct usb_device *udev = interface_to_usbdev (intf);
c5b7c7c3 DT	272	struct usb_xpad *xpad;
c5b7c7c3 DT	273	struct input_dev *input_dev;
1da177e4	274	struct usb_endpoint_descriptor *ep_irq_in;
1da177e4	275	int i;
05f091ab	276
1da177e4 LT	277	for (i = 0; xpad_device[i].idVendor; i++) {
	278	if ((le16_to_cpu(udev->descriptor.idVendor) == xpad_device[i].idVendor) &&
	279	(le16_to_cpu(udev->descriptor.idProduct) == xpad_device[i].idProduct))
	280	break;
	281	}
05f091ab	282
c5b7c7c3 DT	283	xpad = kzalloc(sizeof(struct usb_xpad), GFP_KERNEL);
	284	input_dev = input_allocate_device();
	285	if (!xpad \|\| !input_dev)
	286	goto fail1;
05f091ab	287
1da177e4 LT	288	xpad->idata = usb_buffer_alloc(udev, XPAD_PKT_LEN,
1da177e4 LT	289	SLAB_ATOMIC, &xpad->idata_dma);
c5b7c7c3 DT	290	if (!xpad->idata)
c5b7c7c3 DT	291	goto fail1;
1da177e4 LT	292
1da177e4 LT	293	xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL);
c5b7c7c3 DT	294	if (!xpad->irq_in)
c5b7c7c3 DT	295	goto fail2;
05f091ab	296
1da177e4	297	xpad->udev = udev;
deb8ee43 DC	298	xpad->dpad_mapping = xpad_device[i].dpad_mapping;
	299	if (xpad->dpad_mapping == MAP_DPAD_UNKNOWN)
	300	xpad->dpad_mapping = dpad_to_buttons;
c5b7c7c3 DT	301	xpad->dev = input_dev;
	302	usb_make_path(udev, xpad->phys, sizeof(xpad->phys));
	303	strlcat(xpad->phys, "/input0", sizeof(xpad->phys));
05f091ab	304
c5b7c7c3 DT	305	input_dev->name = xpad_device[i].name;
	306	input_dev->phys = xpad->phys;
	307	usb_to_input_id(udev, &input_dev->id);
	308	input_dev->cdev.dev = &intf->dev;
	309	input_dev->private = xpad;
	310	input_dev->open = xpad_open;
	311	input_dev->close = xpad_close;
05f091ab	312
c5b7c7c3	313	input_dev->evbit[0] = BIT(EV_KEY) \| BIT(EV_ABS);
05f091ab	314
deb8ee43	315	/* set up buttons */
1da177e4	316	for (i = 0; xpad_btn[i] >= 0; i++)
c5b7c7c3	317	set_bit(xpad_btn[i], input_dev->keybit);
deb8ee43 DC	318	if (xpad->dpad_mapping == MAP_DPAD_TO_BUTTONS)
	319	for (i = 0; xpad_btn_pad[i] >= 0; i++)
	320	set_bit(xpad_btn_pad[i], input_dev->keybit);
05f091ab	321
deb8ee43 DC	322	/* set up axes */
	323	for (i = 0; xpad_abs[i] >= 0; i++)
	324	xpad_set_up_abs(input_dev, xpad_abs[i]);
	325	if (xpad->dpad_mapping == MAP_DPAD_TO_AXES)
	326	for (i = 0; xpad_abs_pad[i] >= 0; i++)
	327	xpad_set_up_abs(input_dev, xpad_abs_pad[i]);
05f091ab	328
c5b7c7c3 DT	329	ep_irq_in = &intf->cur_altsetting->endpoint[0].desc;
	330	usb_fill_int_urb(xpad->irq_in, udev,
	331	usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress),
	332	xpad->idata, XPAD_PKT_LEN, xpad_irq_in,
	333	xpad, ep_irq_in->bInterval);
	334	xpad->irq_in->transfer_dma = xpad->idata_dma;
	335	xpad->irq_in->transfer_flags \|= URB_NO_TRANSFER_DMA_MAP;
05f091ab	336
c5b7c7c3	337	input_register_device(xpad->dev);
05f091ab	338
1da177e4 LT	339	usb_set_intfdata(intf, xpad);
1da177e4 LT	340	return 0;
c5b7c7c3 DT	341
	342	fail2: usb_buffer_free(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
	343	fail1: input_free_device(input_dev);
	344	kfree(xpad);
	345	return -ENOMEM;
	346
1da177e4 LT	347	}
	348
	349	static void xpad_disconnect(struct usb_interface *intf)
	350	{
	351	struct usb_xpad *xpad = usb_get_intfdata (intf);
05f091ab	352
1da177e4 LT	353	usb_set_intfdata(intf, NULL);
	354	if (xpad) {
	355	usb_kill_urb(xpad->irq_in);
c5b7c7c3	356	input_unregister_device(xpad->dev);
1da177e4	357	usb_free_urb(xpad->irq_in);
deb8ee43 DC	358	usb_buffer_free(interface_to_usbdev(intf), XPAD_PKT_LEN,
deb8ee43 DC	359	xpad->idata, xpad->idata_dma);
1da177e4 LT	360	kfree(xpad);
	361	}
	362	}
	363
	364	static struct usb_driver xpad_driver = {
1da177e4 LT	365	.name = "xpad",
	366	.probe = xpad_probe,
	367	.disconnect = xpad_disconnect,
	368	.id_table = xpad_table,
	369	};
	370
	371	static int __init usb_xpad_init(void)
	372	{
	373	int result = usb_register(&xpad_driver);
	374	if (result == 0)
	375	info(DRIVER_DESC ":" DRIVER_VERSION);
	376	return result;
	377	}
	378
	379	static void __exit usb_xpad_exit(void)
	380	{
	381	usb_deregister(&xpad_driver);
	382	}
	383
	384	module_init(usb_xpad_init);
	385	module_exit(usb_xpad_exit);
	386
	387	MODULE_AUTHOR(DRIVER_AUTHOR);
	388	MODULE_DESCRIPTION(DRIVER_DESC);
	389	MODULE_LICENSE("GPL");