HID: Use module_hid_driver macro
[linux-3.10.git] / drivers / hid / hid-cherry.c
1 /*
2  *  HID driver for some cherry "special" devices
3  *
4  *  Copyright (c) 1999 Andreas Gal
5  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
6  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
7  *  Copyright (c) 2006-2007 Jiri Kosina
8  *  Copyright (c) 2008 Jiri Slaby
9  */
10
11 /*
12  * This program is free software; you can redistribute it and/or modify it
13  * under the terms of the GNU General Public License as published by the Free
14  * Software Foundation; either version 2 of the License, or (at your option)
15  * any later version.
16  */
17
18 #include <linux/device.h>
19 #include <linux/hid.h>
20 #include <linux/module.h>
21
22 #include "hid-ids.h"
23
24 /*
25  * Cherry Cymotion keyboard have an invalid HID report descriptor,
26  * that needs fixing before we can parse it.
27  */
28 static __u8 *ch_report_fixup(struct hid_device *hdev, __u8 *rdesc,
29                 unsigned int *rsize)
30 {
31         if (*rsize >= 17 && rdesc[11] == 0x3c && rdesc[12] == 0x02) {
32                 hid_info(hdev, "fixing up Cherry Cymotion report descriptor\n");
33                 rdesc[11] = rdesc[16] = 0xff;
34                 rdesc[12] = rdesc[17] = 0x03;
35         }
36         return rdesc;
37 }
38
39 #define ch_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
40                                         EV_KEY, (c))
41 static int ch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
42                 struct hid_field *field, struct hid_usage *usage,
43                 unsigned long **bit, int *max)
44 {
45         if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
46                 return 0;
47
48         switch (usage->hid & HID_USAGE) {
49         case 0x301: ch_map_key_clear(KEY_PROG1);        break;
50         case 0x302: ch_map_key_clear(KEY_PROG2);        break;
51         case 0x303: ch_map_key_clear(KEY_PROG3);        break;
52         default:
53                 return 0;
54         }
55
56         return 1;
57 }
58
59 static const struct hid_device_id ch_devices[] = {
60         { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
61         { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
62         { }
63 };
64 MODULE_DEVICE_TABLE(hid, ch_devices);
65
66 static struct hid_driver ch_driver = {
67         .name = "cherry",
68         .id_table = ch_devices,
69         .report_fixup = ch_report_fixup,
70         .input_mapping = ch_input_mapping,
71 };
72 module_hid_driver(ch_driver);
73
74 MODULE_LICENSE("GPL");