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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/usb/input/usbmouse.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/usb/input/usbmouse.c')
-rw-r--r--drivers/usb/input/usbmouse.c252
1 files changed, 252 insertions, 0 deletions
diff --git a/drivers/usb/input/usbmouse.c b/drivers/usb/input/usbmouse.c
new file mode 100644
index 000000000000..01155bbddd43
--- /dev/null
+++ b/drivers/usb/input/usbmouse.c
@@ -0,0 +1,252 @@
1/*
2 * $Id: usbmouse.c,v 1.15 2001/12/27 10:37:41 vojtech Exp $
3 *
4 * Copyright (c) 1999-2001 Vojtech Pavlik
5 *
6 * USB HIDBP Mouse support
7 */
8
9/*
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.
14 *
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.
19 *
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
23 *
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
27 */
28
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
36/*
37 * Version Information
38 */
39#define DRIVER_VERSION "v1.6"
40#define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>"
41#define DRIVER_DESC "USB HID Boot Protocol mouse driver"
42#define DRIVER_LICENSE "GPL"
43
44MODULE_AUTHOR(DRIVER_AUTHOR);
45MODULE_DESCRIPTION(DRIVER_DESC);
46MODULE_LICENSE(DRIVER_LICENSE);
47
48struct usb_mouse {
49 char name[128];
50 char phys[64];
51 struct usb_device *usbdev;
52 struct input_dev dev;
53 struct urb *irq;
54 int open;
55
56 signed char *data;
57 dma_addr_t data_dma;
58};
59
60static void usb_mouse_irq(struct urb *urb, struct pt_regs *regs)
61{
62 struct usb_mouse *mouse = urb->context;
63 signed char *data = mouse->data;
64 struct input_dev *dev = &mouse->dev;
65 int status;
66
67 switch (urb->status) {
68 case 0: /* success */
69 break;
70 case -ECONNRESET: /* unlink */
71 case -ENOENT:
72 case -ESHUTDOWN:
73 return;
74 /* -EPIPE: should clear the halt */
75 default: /* error */
76 goto resubmit;
77 }
78
79 input_regs(dev, regs);
80
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);
86
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]);
90
91 input_sync(dev);
92resubmit:
93 status = usb_submit_urb (urb, SLAB_ATOMIC);
94 if (status)
95 err ("can't resubmit intr, %s-%s/input0, status %d",
96 mouse->usbdev->bus->bus_name,
97 mouse->usbdev->devpath, status);
98}
99
100static int usb_mouse_open(struct input_dev *dev)
101{
102 struct usb_mouse *mouse = dev->private;
103
104 if (mouse->open++)
105 return 0;
106
107 mouse->irq->dev = mouse->usbdev;
108 if (usb_submit_urb(mouse->irq, GFP_KERNEL)) {
109 mouse->open--;
110 return -EIO;
111 }
112
113 return 0;
114}
115
116static void usb_mouse_close(struct input_dev *dev)
117{
118 struct usb_mouse *mouse = dev->private;
119
120 if (!--mouse->open)
121 usb_kill_urb(mouse->irq);
122}
123
124static int usb_mouse_probe(struct usb_interface * intf, const struct usb_device_id * id)
125{
126 struct usb_device * dev = interface_to_usbdev(intf);
127 struct usb_host_interface *interface;
128 struct usb_endpoint_descriptor *endpoint;
129 struct usb_mouse *mouse;
130 int pipe, maxp;
131 char path[64];
132
133 interface = intf->cur_altsetting;
134
135 if (interface->desc.bNumEndpoints != 1)
136 return -ENODEV;
137
138 endpoint = &interface->endpoint[0].desc;
139 if (!(endpoint->bEndpointAddress & 0x80))
140 return -ENODEV;
141 if ((endpoint->bmAttributes & 3) != 3)
142 return -ENODEV;
143
144 pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
145 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
146
147 if (!(mouse = kmalloc(sizeof(struct usb_mouse), GFP_KERNEL)))
148 return -ENOMEM;
149 memset(mouse, 0, sizeof(struct usb_mouse));
150
151 mouse->data = usb_buffer_alloc(dev, 8, SLAB_ATOMIC, &mouse->data_dma);
152 if (!mouse->data) {
153 kfree(mouse);
154 return -ENOMEM;
155 }
156
157 mouse->irq = usb_alloc_urb(0, GFP_KERNEL);
158 if (!mouse->irq) {
159 usb_buffer_free(dev, 8, mouse->data, mouse->data_dma);
160 kfree(mouse);
161 return -ENODEV;
162 }
163
164 mouse->usbdev = dev;
165
166 mouse->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
167 mouse->dev.keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE);
168 mouse->dev.relbit[0] = BIT(REL_X) | BIT(REL_Y);
169 mouse->dev.keybit[LONG(BTN_MOUSE)] |= BIT(BTN_SIDE) | BIT(BTN_EXTRA);
170 mouse->dev.relbit[0] |= BIT(REL_WHEEL);
171
172 mouse->dev.private = mouse;
173 mouse->dev.open = usb_mouse_open;
174 mouse->dev.close = usb_mouse_close;
175
176 usb_make_path(dev, path, 64);
177 sprintf(mouse->phys, "%s/input0", path);
178
179 mouse->dev.name = mouse->name;
180 mouse->dev.phys = mouse->phys;
181 mouse->dev.id.bustype = BUS_USB;
182 mouse->dev.id.vendor = le16_to_cpu(dev->descriptor.idVendor);
183 mouse->dev.id.product = le16_to_cpu(dev->descriptor.idProduct);
184 mouse->dev.id.version = le16_to_cpu(dev->descriptor.bcdDevice);
185 mouse->dev.dev = &intf->dev;
186
187 if (dev->manufacturer)
188 strcat(mouse->name, dev->manufacturer);
189 if (dev->product)
190 sprintf(mouse->name, "%s %s", mouse->name, dev->product);
191
192 if (!strlen(mouse->name))
193 sprintf(mouse->name, "USB HIDBP Mouse %04x:%04x",
194 mouse->dev.id.vendor, mouse->dev.id.product);
195
196 usb_fill_int_urb(mouse->irq, dev, pipe, mouse->data,
197 (maxp > 8 ? 8 : maxp),
198 usb_mouse_irq, mouse, endpoint->bInterval);
199 mouse->irq->transfer_dma = mouse->data_dma;
200 mouse->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
201
202 input_register_device(&mouse->dev);
203 printk(KERN_INFO "input: %s on %s\n", mouse->name, path);
204
205 usb_set_intfdata(intf, mouse);
206 return 0;
207}
208
209static void usb_mouse_disconnect(struct usb_interface *intf)
210{
211 struct usb_mouse *mouse = usb_get_intfdata (intf);
212
213 usb_set_intfdata(intf, NULL);
214 if (mouse) {
215 usb_kill_urb(mouse->irq);
216 input_unregister_device(&mouse->dev);
217 usb_free_urb(mouse->irq);
218 usb_buffer_free(interface_to_usbdev(intf), 8, mouse->data, mouse->data_dma);
219 kfree(mouse);
220 }
221}
222
223static struct usb_device_id usb_mouse_id_table [] = {
224 { USB_INTERFACE_INFO(3, 1, 2) },
225 { } /* Terminating entry */
226};
227
228MODULE_DEVICE_TABLE (usb, usb_mouse_id_table);
229
230static struct usb_driver usb_mouse_driver = {
231 .owner = THIS_MODULE,
232 .name = "usbmouse",
233 .probe = usb_mouse_probe,
234 .disconnect = usb_mouse_disconnect,
235 .id_table = usb_mouse_id_table,
236};
237
238static int __init usb_mouse_init(void)
239{
240 int retval = usb_register(&usb_mouse_driver);
241 if (retval == 0)
242 info(DRIVER_VERSION ":" DRIVER_DESC);
243 return retval;
244}
245
246static void __exit usb_mouse_exit(void)
247{
248 usb_deregister(&usb_mouse_driver);
249}
250
251module_init(usb_mouse_init);
252module_exit(usb_mouse_exit);