Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff
[linux-2.6.git] / drivers / usb / input / usbmouse.c
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 #include <linux/usb_input.h>
36
37 /*
38  * Version Information
39  */
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"
44
45 MODULE_AUTHOR(DRIVER_AUTHOR);
46 MODULE_DESCRIPTION(DRIVER_DESC);
47 MODULE_LICENSE(DRIVER_LICENSE);
48
49 struct usb_mouse {
50         char name[128];
51         char phys[64];
52         struct usb_device *usbdev;
53         struct input_dev *dev;
54         struct urb *irq;
55
56         signed char *data;
57         dma_addr_t data_dma;
58 };
59
60 static 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);
92 resubmit:
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
100 static int usb_mouse_open(struct input_dev *dev)
101 {
102         struct usb_mouse *mouse = dev->private;
103
104         mouse->irq->dev = mouse->usbdev;
105         if (usb_submit_urb(mouse->irq, GFP_KERNEL))
106                 return -EIO;
107
108         return 0;
109 }
110
111 static void usb_mouse_close(struct input_dev *dev)
112 {
113         struct usb_mouse *mouse = dev->private;
114
115         usb_kill_urb(mouse->irq);
116 }
117
118 static int usb_mouse_probe(struct usb_interface *intf, const struct usb_device_id *id)
119 {
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;
125         int pipe, maxp;
126
127         interface = intf->cur_altsetting;
128
129         if (interface->desc.bNumEndpoints != 1)
130                 return -ENODEV;
131
132         endpoint = &interface->endpoint[0].desc;
133         if (!(endpoint->bEndpointAddress & USB_DIR_IN))
134                 return -ENODEV;
135         if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_INT)
136                 return -ENODEV;
137
138         pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
139         maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
140
141         mouse = kzalloc(sizeof(struct usb_mouse), GFP_KERNEL);
142         input_dev = input_allocate_device();
143         if (!mouse || !input_dev)
144                 goto fail1;
145
146         mouse->data = usb_buffer_alloc(dev, 8, SLAB_ATOMIC, &mouse->data_dma);
147         if (!mouse->data)
148                 goto fail1;
149
150         mouse->irq = usb_alloc_urb(0, GFP_KERNEL);
151         if (!mouse->irq)
152                 goto fail2;
153
154         mouse->usbdev = dev;
155         mouse->dev = input_dev;
156
157         if (dev->manufacturer)
158                 strlcpy(mouse->name, dev->manufacturer, sizeof(mouse->name));
159
160         if (dev->product) {
161                 if (dev->manufacturer)
162                         strlcat(mouse->name, " ", sizeof(mouse->name));
163                 strlcat(mouse->name, dev->product, sizeof(mouse->name));
164         }
165
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));
171
172         usb_make_path(dev, mouse->phys, sizeof(mouse->phys));
173         strlcat(mouse->phys, "/input0", sizeof(mouse->phys));
174
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;
179
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);
185
186         input_dev->private = mouse;
187         input_dev->open = usb_mouse_open;
188         input_dev->close = usb_mouse_close;
189
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;
195
196         input_register_device(mouse->dev);
197
198         usb_set_intfdata(intf, mouse);
199         return 0;
200
201 fail2:  usb_buffer_free(dev, 8, mouse->data, mouse->data_dma);
202 fail1:  input_free_device(input_dev);
203         kfree(mouse);
204         return -ENOMEM;
205 }
206
207 static void usb_mouse_disconnect(struct usb_interface *intf)
208 {
209         struct usb_mouse *mouse = usb_get_intfdata (intf);
210
211         usb_set_intfdata(intf, NULL);
212         if (mouse) {
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);
217                 kfree(mouse);
218         }
219 }
220
221 static struct usb_device_id usb_mouse_id_table [] = {
222         { USB_INTERFACE_INFO(3, 1, 2) },
223     { }                                         /* Terminating entry */
224 };
225
226 MODULE_DEVICE_TABLE (usb, usb_mouse_id_table);
227
228 static struct usb_driver usb_mouse_driver = {
229         .name           = "usbmouse",
230         .probe          = usb_mouse_probe,
231         .disconnect     = usb_mouse_disconnect,
232         .id_table       = usb_mouse_id_table,
233 };
234
235 static int __init usb_mouse_init(void)
236 {
237         int retval = usb_register(&usb_mouse_driver);
238         if (retval == 0)
239                 info(DRIVER_VERSION ":" DRIVER_DESC);
240         return retval;
241 }
242
243 static void __exit usb_mouse_exit(void)
244 {
245         usb_deregister(&usb_mouse_driver);
246 }
247
248 module_init(usb_mouse_init);
249 module_exit(usb_mouse_exit);