<commit_before>/*
 * Support for the Maxtor OneTouch USB hard drive's button
 *
 * Current development and maintenance by:
 *	Copyright (c) 2005 <NAME> <<EMAIL>>
 *
 * Initial work by:
 *	Copyright (c) 2003 <NAME> <<EMAIL>>
 *
 * Based on usbmouse.c (Vojtech Pavlik) and xpad.c (<NAME>)
 *
 */

/*
 * 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
 *
 */

#include <linux/kernel.h>
#include <linux/input.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/usb/input.h>
#include "usb.h"
#include "onetouch.h"
#include "debug.h"

void onetouch_release_input(void *onetouch_);

struct usb_onetouch {
	char name[128];
	char phys[64];
	struct input_dev *dev;	/* input device interface */
	struct usb_device *udev;	/* usb device */

	struct urb *irq;	/* urb for interrupt in report */
	unsigned char *data;	/* input data */
	dma_addr_t data_dma;
	unsigned int is_open:1;
};

static void usb_onetouch_irq(struct urb *urb)
{
	struct usb_onetouch *onetouch = urb->context;
	signed char *data = onetouch->data;
	struct input_dev *dev = onetouch->dev;
	int status;

	switch (urb->status) {
	case 0:			/* success */
		break;
	case -ECONNRESET:	/* unlink */
	case -ENOENT:
	case -ESHUTDOWN:
		return;
	/* -EPIPE:  should clear the halt */
	default:		/* error */
		goto resubmit;
	}

	input_report_key(dev, ONETOUCH_BUTTON, data[0] & 0x02);
	input_sync(dev);

resubmit:
	status = usb_submit_urb (urb, GFP_ATOMIC);
	if (status)
		err ("can't resubmit intr, %s-%s/input0, status %d",
			onetouch->udev->bus->bus_name,
			onetouch->udev->devpath, status);
}

static int usb_onetouch_open(struct input_dev *dev)
{
	struct usb_onetouch *onetouch = input_get_drvdata(dev);

	onetouch->is_open = 1;
	onetouch->irq->dev = onetouch->udev;
	if (usb_submit_urb(onetouch->irq, GFP_KERNEL)) {
		err("usb_submit_urb failed");
		return -EIO;
	}<commit_msg>USB: storage: onetouch: clean up urb->status usage<commit_after>/*
 * Support for the Maxtor OneTouch USB hard drive's button
 *
 * Current development and maintenance by:
 *	Copyright (c) 2005 <NAME> <<EMAIL>>
 *
 * Initial work by:
 *	Copyright (c) 2003 <NAME> <<EMAIL>>
 *
 * Based on usbmouse.c (<NAME>lik) and xpad.c (<NAME>)
 *
 */

/*
 * 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
 *
 */

#include <linux/kernel.h>
#include <linux/input.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/usb/input.h>
#include "usb.h"
#include "onetouch.h"
#include "debug.h"

void onetouch_release_input(void *onetouch_);

struct usb_onetouch {
	char name[128];
	char phys[64];
	struct input_dev *dev;	/* input device interface */
	struct usb_device *udev;	/* usb device */

	struct urb *irq;	/* urb for interrupt in report */
	unsigned char *data;	/* input data */
	dma_addr_t data_dma;
	unsigned int is_open:1;
};

static void usb_onetouch_irq(struct urb *urb)
{
	struct usb_onetouch *onetouch = urb->context;
	signed char *data = onetouch->data;
	struct input_dev *dev = onetouch->dev;
	int status = urb->status;
	int retval;

	switch (status) {
	case 0:			/* success */
		break;
	case -ECONNRESET:	/* unlink */
	case -ENOENT:
	case -ESHUTDOWN:
		return;
	/* -EPIPE:  should clear the halt */
	default:		/* error */
		goto resubmit;
	}

	input_report_key(dev, ONETOUCH_BUTTON, data[0] & 0x02);
	input_sync(dev);

resubmit:
	retval = usb_submit_urb (urb, GFP_ATOMIC);
	if (retval)
		err ("can't resubmit intr, %s-%s/input0, retval %d",
			onetouch->udev->bus->bus_name,
			onetouch->udev->devpath, retval);
}

static int usb_onetouch_open(struct input_dev *dev)
{
	struct usb_onetouch *onetouch = input_get_drvdata(dev);

	onetouch->is_open = 1;
	onetouch->irq->dev = onetouch->udev;
	if (usb_submit_urb(onetouch->irq, GFP_KERNEL)) {
		err("usb_submit_urb failed");
		return -EIO;
	}
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