tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * $Id: maplemouse.c,v 1.2 2004/03/22 01:18:15 lethal Exp $
3 * SEGA Dreamcast mouse driver
4 * Based on drivers/usb/usbmouse.c
5 */
6
7#include <linux/kernel.h>
8#include <linux/slab.h>
9#include <linux/input.h>
10#include <linux/module.h>
11#include <linux/init.h>
12#include <linux/timer.h>
13#include <linux/maple.h>
14
15MODULE_AUTHOR("YAEGASHI Takeshi <t@keshi.org>");
16MODULE_DESCRIPTION("SEGA Dreamcast mouse driver");
17
18static void dc_mouse_callback(struct mapleq *mq)
19{
20 int buttons, relx, rely, relz;
21 struct maple_device *mapledev = mq->dev;
22 struct input_dev *dev = mapledev->private_data;
23 unsigned char *res = mq->recvbuf;
24
25 buttons = ~res[8];
26 relx = *(unsigned short *)(res + 12) - 512;
27 rely = *(unsigned short *)(res + 14) - 512;
28 relz = *(unsigned short *)(res + 16) - 512;
29
30 input_report_key(dev, BTN_LEFT, buttons & 4);
31 input_report_key(dev, BTN_MIDDLE, buttons & 9);
32 input_report_key(dev, BTN_RIGHT, buttons & 2);
33 input_report_rel(dev, REL_X, relx);
34 input_report_rel(dev, REL_Y, rely);
35 input_report_rel(dev, REL_WHEEL, relz);
36 input_sync(dev);
37}
38
39static int dc_mouse_connect(struct maple_device *dev)
40{
41 unsigned long data = be32_to_cpu(dev->devinfo.function_data[0]);
42 struct input_dev *input_dev;
43
44 dev->private_data = input_dev = input_allocate_device();
45 if (!input_dev)
46 return -ENOMEM;
47
48 dev->private_data = input_dev;
49
50 input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
51 input_dev->keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE);
52 input_dev->relbit[0] = BIT(REL_X) | BIT(REL_Y) | BIT(REL_WHEEL);
53
54 input_dev->name = dev->product_name;
55 input_dev->id.bustype = BUS_MAPLE;
56
57 input_register_device(input_dev);
58
59 maple_getcond_callback(dev, dc_mouse_callback, 1, MAPLE_FUNC_MOUSE);
60
61 return 0;
62}
63
64
65static void dc_mouse_disconnect(struct maple_device *dev)
66{
67 struct input_dev *input_dev = dev->private_data;
68
69 input_unregister_device(input_dev);
70}
71
72
73static struct maple_driver dc_mouse_driver = {
74 .function = MAPLE_FUNC_MOUSE,
75 .name = "Dreamcast mouse",
76 .connect = dc_mouse_connect,
77 .disconnect = dc_mouse_disconnect,
78};
79
80
81static int __init dc_mouse_init(void)
82{
83 maple_register_driver(&dc_mouse_driver);
84 return 0;
85}
86
87
88static void __exit dc_mouse_exit(void)
89{
90 maple_unregister_driver(&dc_mouse_driver);
91}
92
93
94module_init(dc_mouse_init);
95module_exit(dc_mouse_exit);
96
97/*
98 * Local variables:
99 * c-basic-offset: 8
100 * End:
101 */