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;
53 struct input_dev *dev;
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;
124 struct input_dev *input_dev;
127 interface = intf->cur_altsetting;
129 if (interface->desc.bNumEndpoints != 1)
132 endpoint = &interface->endpoint[0].desc;
133 if (!(endpoint->bEndpointAddress & USB_DIR_IN))
135 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_INT)
138 pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
139 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
141 mouse = kzalloc(sizeof(struct usb_mouse), GFP_KERNEL);
142 input_dev = input_allocate_device();
143 if (!mouse || !input_dev)
146 mouse->data = usb_buffer_alloc(dev, 8, SLAB_ATOMIC, &mouse->data_dma);
150 mouse->irq = usb_alloc_urb(0, GFP_KERNEL);
155 mouse->dev = input_dev;
157 if (dev->manufacturer)
158 strlcpy(mouse->name, dev->manufacturer, sizeof(mouse->name));
161 if (dev->manufacturer)
162 strlcat(mouse->name, " ", sizeof(mouse->name));
163 strlcat(mouse->name, dev->product, sizeof(mouse->name));
166 if (!strlen(mouse->name))
167 snprintf(mouse->name, sizeof(mouse->name),
168 "USB HIDBP Mouse %04x:%04x",
169 le16_to_cpu(dev->descriptor.idVendor),
170 le16_to_cpu(dev->descriptor.idProduct));
172 usb_make_path(dev, mouse->phys, sizeof(mouse->phys));
173 strlcat(mouse->phys, "/input0", sizeof(mouse->phys));
175 input_dev->name = mouse->name;
176 input_dev->phys = mouse->phys;
177 usb_to_input_id(dev, &input_dev->id);
178 input_dev->cdev.dev = &intf->dev;
180 input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
181 input_dev->keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE);
182 input_dev->relbit[0] = BIT(REL_X) | BIT(REL_Y);
183 input_dev->keybit[LONG(BTN_MOUSE)] |= BIT(BTN_SIDE) | BIT(BTN_EXTRA);
184 input_dev->relbit[0] |= BIT(REL_WHEEL);
186 input_dev->private = mouse;
187 input_dev->open = usb_mouse_open;
188 input_dev->close = usb_mouse_close;
190 usb_fill_int_urb(mouse->irq, dev, pipe, mouse->data,
191 (maxp > 8 ? 8 : maxp),
192 usb_mouse_irq, mouse, endpoint->bInterval);
193 mouse->irq->transfer_dma = mouse->data_dma;
194 mouse->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
196 input_register_device(mouse->dev);
198 usb_set_intfdata(intf, mouse);
201 fail2: usb_buffer_free(dev, 8, mouse->data, mouse->data_dma);
202 fail1: input_free_device(input_dev);
207 static void usb_mouse_disconnect(struct usb_interface *intf)
209 struct usb_mouse *mouse = usb_get_intfdata (intf);
211 usb_set_intfdata(intf, NULL);
213 usb_kill_urb(mouse->irq);
214 input_unregister_device(mouse->dev);
215 usb_free_urb(mouse->irq);
216 usb_buffer_free(interface_to_usbdev(intf), 8, mouse->data, mouse->data_dma);
221 static struct usb_device_id usb_mouse_id_table [] = {
222 { USB_INTERFACE_INFO(3, 1, 2) },
223 { } /* Terminating entry */
226 MODULE_DEVICE_TABLE (usb, usb_mouse_id_table);
228 static struct usb_driver usb_mouse_driver = {
230 .probe = usb_mouse_probe,
231 .disconnect = usb_mouse_disconnect,
232 .id_table = usb_mouse_id_table,
235 static int __init usb_mouse_init(void)
237 int retval = usb_register(&usb_mouse_driver);
239 info(DRIVER_VERSION ":" DRIVER_DESC);
243 static void __exit usb_mouse_exit(void)
245 usb_deregister(&usb_mouse_driver);
248 module_init(usb_mouse_init);
249 module_exit(usb_mouse_exit);