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Sourcecode: wacom-tools version File versions

usbmouse.c

/*
 * $Id: usbmouse.c,v 1.1 2004/01/20 00:28:13 pingc Exp $
 *
 *  Copyright (c) 1999-2000 Vojtech Pavlik
 *
 *  USB HIDBP Mouse support
 *
 *  Sponsored by SuSE
 */

/*
 * 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
 * 
 * Should you need to contact me, the author, you can do so either by
 * e-mail - mail your message to <vojtech@suse.cz>, or by paper mail:
 * Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic
 */

#include <linux/autoconf.h>
#if defined(CONFIG_MODVERSIONS) && !defined(MODVERSIONS)
#   define MODVERSIONS
#endif

#ifdef MODVERSIONS
#include <linux/modversions.h>
#endif


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

/*
 * Version Information
 */
#define DRIVER_VERSION "v1.6"
#define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@suse.cz>"
#define DRIVER_DESC "USB HID Boot Protocol mouse driver"

MODULE_AUTHOR( DRIVER_AUTHOR );
MODULE_DESCRIPTION( DRIVER_DESC );
MODULE_LICENSE("GPL");

struct usb_mouse {
      signed char data[8];
      char name[128];
      struct usb_device *usbdev;
      struct input_dev dev;
      struct urb irq;
      int open;
};

static void usb_mouse_irq(struct urb *urb)
{
      struct usb_mouse *mouse = urb->context;
      signed char *data = mouse->data;
      struct input_dev *dev = &mouse->dev;

      if (urb->status) return;

      input_report_key(dev, BTN_LEFT,   data[0] & 0x01);
      input_report_key(dev, BTN_RIGHT,  data[0] & 0x02);
      input_report_key(dev, BTN_MIDDLE, data[0] & 0x04);
      input_report_key(dev, BTN_SIDE,   data[0] & 0x08);
      input_report_key(dev, BTN_EXTRA,  data[0] & 0x10);

      input_report_rel(dev, REL_X,     data[1]);
      input_report_rel(dev, REL_Y,     data[2]);
      input_report_rel(dev, REL_WHEEL, data[3]);
}

static int usb_mouse_open(struct input_dev *dev)
{
      struct usb_mouse *mouse = dev->private;

      if (mouse->open++)
            return 0;

      mouse->irq.dev = mouse->usbdev;
      if (usb_submit_urb(&mouse->irq))
            return -EIO;

      return 0;
}

static void usb_mouse_close(struct input_dev *dev)
{
      struct usb_mouse *mouse = dev->private;

      if (!--mouse->open)
            usb_unlink_urb(&mouse->irq);
}

static void *usb_mouse_probe(struct usb_device *dev, unsigned int ifnum,
                       const struct usb_device_id *id)
{
      struct usb_interface *iface;
      struct usb_interface_descriptor *interface;
      struct usb_endpoint_descriptor *endpoint;
      struct usb_mouse *mouse;
      int pipe, maxp;
      char *buf;

      iface = &dev->actconfig->interface[ifnum];
      interface = &iface->altsetting[iface->act_altsetting];

      if (interface->bNumEndpoints != 1) return NULL;

      endpoint = interface->endpoint + 0;
      if (!(endpoint->bEndpointAddress & 0x80)) return NULL;
      if ((endpoint->bmAttributes & 3) != 3) return NULL;

      /* wacom tablets match... */
      if (dev->descriptor.idVendor == 0x056a)
      {
#ifdef __JEJ_DEBUG
      printk(KERN_INFO __FILE__ ": usb_mouse_probe: ignoring wacom\n");
#endif
            return NULL; 
      }
      
      pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
      maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));

      usb_set_idle(dev, interface->bInterfaceNumber, 0, 0);

      if (!(mouse = kmalloc(sizeof(struct usb_mouse), GFP_KERNEL))) return NULL;
      memset(mouse, 0, sizeof(struct usb_mouse));

      mouse->usbdev = dev;

      mouse->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
      mouse->dev.keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE);
      mouse->dev.relbit[0] = BIT(REL_X) | BIT(REL_Y);
      mouse->dev.keybit[LONG(BTN_MOUSE)] |= BIT(BTN_SIDE) | BIT(BTN_EXTRA);
      mouse->dev.relbit[0] |= BIT(REL_WHEEL);

      mouse->dev.private = mouse;
      mouse->dev.open = usb_mouse_open;
      mouse->dev.close = usb_mouse_close;

      mouse->dev.name = mouse->name;
      mouse->dev.idbus = BUS_USB;
      mouse->dev.idvendor = dev->descriptor.idVendor;
      mouse->dev.idproduct = dev->descriptor.idProduct;
      mouse->dev.idversion = dev->descriptor.bcdDevice;

      if (!(buf = kmalloc(63, GFP_KERNEL))) {
            kfree(mouse);
            return NULL;
      }

      if (dev->descriptor.iManufacturer &&
            usb_string(dev, dev->descriptor.iManufacturer, buf, 63) > 0)
                  strcat(mouse->name, buf);
      if (dev->descriptor.iProduct &&
            usb_string(dev, dev->descriptor.iProduct, buf, 63) > 0)
                  sprintf(mouse->name, "%s %s", mouse->name, buf);

      if (!strlen(mouse->name))
            sprintf(mouse->name, "USB HIDBP Mouse %04x:%04x",
                  mouse->dev.idvendor, mouse->dev.idproduct);

      kfree(buf);

      FILL_INT_URB(&mouse->irq, dev, pipe, mouse->data, maxp > 8 ? 8 : maxp,
            usb_mouse_irq, mouse, endpoint->bInterval);

      input_register_device(&mouse->dev);

      printk(KERN_INFO "input%d: %s on usb%d:%d.%d\n",
             mouse->dev.number, mouse->name, dev->bus->busnum, dev->devnum, ifnum);

      return mouse;
}

static void usb_mouse_disconnect(struct usb_device *dev, void *ptr)
{
      struct usb_mouse *mouse = ptr;
      usb_unlink_urb(&mouse->irq);
      input_unregister_device(&mouse->dev);
      kfree(mouse);
}

static struct usb_device_id usb_mouse_id_table [] = {
      { USB_INTERFACE_INFO(3, 1, 2) },
    { }                                   /* Terminating entry */
};

MODULE_DEVICE_TABLE (usb, usb_mouse_id_table);

static struct usb_driver usb_mouse_driver = {
      name:       "usb_mouse",
      probe:            usb_mouse_probe,
      disconnect: usb_mouse_disconnect,
      id_table:   usb_mouse_id_table,
};

static int __init usb_mouse_init(void)
{
#ifdef __JEJ_DEBUG
      printk(KERN_INFO __FILE__ ": usb_mouse_init (LINUXWACOM DEBUG)\n");
#endif
      usb_register(&usb_mouse_driver);
      info(DRIVER_VERSION ":" DRIVER_DESC);
      return 0;
}

static void __exit usb_mouse_exit(void)
{
      usb_deregister(&usb_mouse_driver);
}

module_init(usb_mouse_init);
module_exit(usb_mouse_exit);

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