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1/*
2 * Copyright (c) 1999-2001 Vojtech Pavlik
3 *
4 * USB HIDBP Mouse support
5 */
6
7/*
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 * Should you need to contact me, the author, you can do so either by
23 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
24 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
25 */
26
27#include <linux/kernel.h>
28#include <linux/slab.h>
29#include <linux/module.h>
30#include <linux/init.h>
31#include <linux/usb/input.h>
32#include <linux/hid.h>
33
34/* for apple IDs */
35#ifdef CONFIG_USB_HID_MODULE
36#include "../hid-ids.h"
37#endif
38
39/*
40 * Version Information
41 */
42#define DRIVER_VERSION "v1.6"
43#define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>"
44#define DRIVER_DESC "USB HID Boot Protocol mouse driver"
45#define DRIVER_LICENSE "GPL"
46
47MODULE_AUTHOR(DRIVER_AUTHOR);
48MODULE_DESCRIPTION(DRIVER_DESC);
49MODULE_LICENSE(DRIVER_LICENSE);
50
51struct usb_mouse {
52 char name[128];
53 char phys[64];
54 struct usb_device *usbdev;
55 struct input_dev *dev;
56 struct urb *irq;
57
58 signed char *data;
59 dma_addr_t data_dma;
60};
61
62static void usb_mouse_irq(struct urb *urb)
63{
64 struct usb_mouse *mouse = urb->context;
65 signed char *data = mouse->data;
66 struct input_dev *dev = mouse->dev;
67 int status;
68
69 switch (urb->status) {
70 case 0: /* success */
71 break;
72 case -ECONNRESET: /* unlink */
73 case -ENOENT:
74 case -ESHUTDOWN:
75 return;
76 /* -EPIPE: should clear the halt */
77 default: /* error */
78 goto resubmit;
79 }
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, GFP_ATOMIC);
94 if (status)
95 dev_err(&mouse->usbdev->dev,
96 "can't resubmit intr, %s-%s/input0, status %d\n",
97 mouse->usbdev->bus->bus_name,
98 mouse->usbdev->devpath, status);
99}
100
101static int usb_mouse_open(struct input_dev *dev)
102{
103 struct usb_mouse *mouse = input_get_drvdata(dev);
104
105 mouse->irq->dev = mouse->usbdev;
106 if (usb_submit_urb(mouse->irq, GFP_KERNEL))
107 return -EIO;
108
109 return 0;
110}
111
112static void usb_mouse_close(struct input_dev *dev)
113{
114 struct usb_mouse *mouse = input_get_drvdata(dev);
115
116 usb_kill_urb(mouse->irq);
117}
118
119static int usb_mouse_probe(struct usb_interface *intf, const struct usb_device_id *id)
120{
121 struct usb_device *dev = interface_to_usbdev(intf);
122 struct usb_host_interface *interface;
123 struct usb_endpoint_descriptor *endpoint;
124 struct usb_mouse *mouse;
125 struct input_dev *input_dev;
126 int pipe, maxp;
127 int error = -ENOMEM;
128
129 interface = intf->cur_altsetting;
130
131 if (interface->desc.bNumEndpoints != 1)
132 return -ENODEV;
133
134 endpoint = &interface->endpoint[0].desc;
135 if (!usb_endpoint_is_int_in(endpoint))
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_alloc_coherent(dev, 8, GFP_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->dev.parent = &intf->dev;
179
180 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
181 input_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
182 BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_MIDDLE);
183 input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
184 input_dev->keybit[BIT_WORD(BTN_MOUSE)] |= BIT_MASK(BTN_SIDE) |
185 BIT_MASK(BTN_EXTRA);
186 input_dev->relbit[0] |= BIT_MASK(REL_WHEEL);
187
188 input_set_drvdata(input_dev, mouse);
189
190 input_dev->open = usb_mouse_open;
191 input_dev->close = usb_mouse_close;
192
193 usb_fill_int_urb(mouse->irq, dev, pipe, mouse->data,
194 (maxp > 8 ? 8 : maxp),
195 usb_mouse_irq, mouse, endpoint->bInterval);
196 mouse->irq->transfer_dma = mouse->data_dma;
197 mouse->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
198
199 error = input_register_device(mouse->dev);
200 if (error)
201 goto fail3;
202
203 usb_set_intfdata(intf, mouse);
204 return 0;
205
206fail3:
207 usb_free_urb(mouse->irq);
208fail2:
209 usb_free_coherent(dev, 8, mouse->data, mouse->data_dma);
210fail1:
211 input_free_device(input_dev);
212 kfree(mouse);
213 return error;
214}
215
216static void usb_mouse_disconnect(struct usb_interface *intf)
217{
218 struct usb_mouse *mouse = usb_get_intfdata (intf);
219
220 usb_set_intfdata(intf, NULL);
221 if (mouse) {
222 usb_kill_urb(mouse->irq);
223 input_unregister_device(mouse->dev);
224 usb_free_urb(mouse->irq);
225 usb_free_coherent(interface_to_usbdev(intf), 8, mouse->data, mouse->data_dma);
226 kfree(mouse);
227 }
228}
229
230static struct usb_device_id usb_mouse_id_table [] = {
231 { USB_INTERFACE_INFO(USB_INTERFACE_CLASS_HID, USB_INTERFACE_SUBCLASS_BOOT,
232 USB_INTERFACE_PROTOCOL_MOUSE) },
233 { } /* Terminating entry */
234};
235
236MODULE_DEVICE_TABLE (usb, usb_mouse_id_table);
237
238static struct usb_driver usb_mouse_driver = {
239 .name = "usbmouse",
240 .probe = usb_mouse_probe,
241 .disconnect = usb_mouse_disconnect,
242 .id_table = usb_mouse_id_table,
243};
244
245module_usb_driver(usb_mouse_driver);