Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
[linux-2.6.git] / drivers / input / mouse / maplemouse.c
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
15 MODULE_AUTHOR("YAEGASHI Takeshi <t@keshi.org>");
16 MODULE_DESCRIPTION("SEGA Dreamcast mouse driver");
17
18 static 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
39 static 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
65 static 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
73 static 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
81 static int __init dc_mouse_init(void)
82 {
83         maple_register_driver(&dc_mouse_driver);
84         return 0;
85 }
86
87
88 static void __exit dc_mouse_exit(void)
89 {
90         maple_unregister_driver(&dc_mouse_driver);
91 }
92
93
94 module_init(dc_mouse_init);
95 module_exit(dc_mouse_exit);
96
97 /*
98  * Local variables:
99  * c-basic-offset: 8
100  * End:
101  */