2 * $Id: usbmouse.c,v 1.15 2001/12/27 10:37:41 vojtech Exp $
4 * Copyright (c) 1999-2001 Vojtech Pavlik
6 * USB HIDBP Mouse support
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 * Should you need to contact me, the author, you can do so either by
25 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
26 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
29 #include <linux/kernel.h>
30 #include <linux/slab.h>
31 #include <linux/input.h>
32 #include <linux/module.h>
33 #include <linux/init.h>
34 #include <linux/usb.h>
35 #include <linux/usb_input.h>
40 #define DRIVER_VERSION "v1.6"
41 #define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>"
42 #define DRIVER_DESC "USB HID Boot Protocol mouse driver"
43 #define DRIVER_LICENSE "GPL"
45 MODULE_AUTHOR(DRIVER_AUTHOR);
46 MODULE_DESCRIPTION(DRIVER_DESC);
47 MODULE_LICENSE(DRIVER_LICENSE);
52 struct usb_device *usbdev;
60 static void usb_mouse_irq(struct urb *urb, struct pt_regs *regs)
62 struct usb_mouse *mouse = urb->context;
63 signed char *data = mouse->data;
64 struct input_dev *dev = &mouse->dev;
67 switch (urb->status) {
70 case -ECONNRESET: /* unlink */
74 /* -EPIPE: should clear the halt */
79 input_regs(dev, regs);
81 input_report_key(dev, BTN_LEFT, data[0] & 0x01);
82 input_report_key(dev, BTN_RIGHT, data[0] & 0x02);
83 input_report_key(dev, BTN_MIDDLE, data[0] & 0x04);
84 input_report_key(dev, BTN_SIDE, data[0] & 0x08);
85 input_report_key(dev, BTN_EXTRA, data[0] & 0x10);
87 input_report_rel(dev, REL_X, data[1]);
88 input_report_rel(dev, REL_Y, data[2]);
89 input_report_rel(dev, REL_WHEEL, data[3]);
93 status = usb_submit_urb (urb, SLAB_ATOMIC);
95 err ("can't resubmit intr, %s-%s/input0, status %d",
96 mouse->usbdev->bus->bus_name,
97 mouse->usbdev->devpath, status);
100 static int usb_mouse_open(struct input_dev *dev)
102 struct usb_mouse *mouse = dev->private;
104 mouse->irq->dev = mouse->usbdev;
105 if (usb_submit_urb(mouse->irq, GFP_KERNEL))
111 static void usb_mouse_close(struct input_dev *dev)
113 struct usb_mouse *mouse = dev->private;
115 usb_kill_urb(mouse->irq);
118 static int usb_mouse_probe(struct usb_interface * intf, const struct usb_device_id * id)
120 struct usb_device * dev = interface_to_usbdev(intf);
121 struct usb_host_interface *interface;
122 struct usb_endpoint_descriptor *endpoint;
123 struct usb_mouse *mouse;
127 interface = intf->cur_altsetting;
129 if (interface->desc.bNumEndpoints != 1)
132 endpoint = &interface->endpoint[0].desc;
133 if (!(endpoint->bEndpointAddress & 0x80))
135 if ((endpoint->bmAttributes & 3) != 3)
138 pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
139 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
141 if (!(mouse = kmalloc(sizeof(struct usb_mouse), GFP_KERNEL)))
143 memset(mouse, 0, sizeof(struct usb_mouse));
145 mouse->data = usb_buffer_alloc(dev, 8, SLAB_ATOMIC, &mouse->data_dma);
151 mouse->irq = usb_alloc_urb(0, GFP_KERNEL);
153 usb_buffer_free(dev, 8, mouse->data, mouse->data_dma);
160 mouse->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
161 mouse->dev.keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE);
162 mouse->dev.relbit[0] = BIT(REL_X) | BIT(REL_Y);
163 mouse->dev.keybit[LONG(BTN_MOUSE)] |= BIT(BTN_SIDE) | BIT(BTN_EXTRA);
164 mouse->dev.relbit[0] |= BIT(REL_WHEEL);
166 mouse->dev.private = mouse;
167 mouse->dev.open = usb_mouse_open;
168 mouse->dev.close = usb_mouse_close;
170 usb_make_path(dev, path, 64);
171 sprintf(mouse->phys, "%s/input0", path);
173 mouse->dev.name = mouse->name;
174 mouse->dev.phys = mouse->phys;
175 usb_to_input_id(dev, &mouse->dev.id);
176 mouse->dev.dev = &intf->dev;
178 if (dev->manufacturer)
179 strcat(mouse->name, dev->manufacturer);
181 sprintf(mouse->name, "%s %s", mouse->name, dev->product);
183 if (!strlen(mouse->name))
184 sprintf(mouse->name, "USB HIDBP Mouse %04x:%04x",
185 mouse->dev.id.vendor, mouse->dev.id.product);
187 usb_fill_int_urb(mouse->irq, dev, pipe, mouse->data,
188 (maxp > 8 ? 8 : maxp),
189 usb_mouse_irq, mouse, endpoint->bInterval);
190 mouse->irq->transfer_dma = mouse->data_dma;
191 mouse->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
193 input_register_device(&mouse->dev);
194 printk(KERN_INFO "input: %s on %s\n", mouse->name, path);
196 usb_set_intfdata(intf, mouse);
200 static void usb_mouse_disconnect(struct usb_interface *intf)
202 struct usb_mouse *mouse = usb_get_intfdata (intf);
204 usb_set_intfdata(intf, NULL);
206 usb_kill_urb(mouse->irq);
207 input_unregister_device(&mouse->dev);
208 usb_free_urb(mouse->irq);
209 usb_buffer_free(interface_to_usbdev(intf), 8, mouse->data, mouse->data_dma);
214 static struct usb_device_id usb_mouse_id_table [] = {
215 { USB_INTERFACE_INFO(3, 1, 2) },
216 { } /* Terminating entry */
219 MODULE_DEVICE_TABLE (usb, usb_mouse_id_table);
221 static struct usb_driver usb_mouse_driver = {
222 .owner = THIS_MODULE,
224 .probe = usb_mouse_probe,
225 .disconnect = usb_mouse_disconnect,
226 .id_table = usb_mouse_id_table,
229 static int __init usb_mouse_init(void)
231 int retval = usb_register(&usb_mouse_driver);
233 info(DRIVER_VERSION ":" DRIVER_DESC);
237 static void __exit usb_mouse_exit(void)
239 usb_deregister(&usb_mouse_driver);
242 module_init(usb_mouse_init);
243 module_exit(usb_mouse_exit);