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/*
* $Id: usbmouse.c,v 1.5 2000/05/29 09:01:52 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/malloc.h>
#include <linux/input.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/usb.h>
MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
struct usb_mouse {
signed char data[8];
char name[128];
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;
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)
{
struct usb_interface_descriptor *interface;
struct usb_endpoint_descriptor *endpoint;
struct usb_mouse *mouse;
int pipe, maxp;
char *buf;
if (dev->descriptor.bNumConfigurations != 1) return NULL;
interface = dev->config[0].interface[ifnum].altsetting + 0;
if (interface->bInterfaceClass != 3) return NULL;
if (interface->bInterfaceSubClass != 1) return NULL;
if (interface->bInterfaceProtocol != 2) return NULL;
if (interface->bNumEndpoints != 1) return NULL;
endpoint = interface->endpoint + 0;
if (!(endpoint->bEndpointAddress & 0x80)) return NULL;
if ((endpoint->bmAttributes & 3) != 3) 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->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_driver usb_mouse_driver = {
name: "usb_mouse",
probe: usb_mouse_probe,
disconnect: usb_mouse_disconnect,
};
static int __init usb_mouse_init(void)
{
usb_register(&usb_mouse_driver);
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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