usbmouse.c
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:6k
- /*
- * $Id: usbmouse.c,v 1.6 2000/08/14 21:05:26 vojtech 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/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) 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.%dn",
- 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)
- {
- 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);