blob: 12c8a9ba6ed69badc7340d770954b249c29d1076 [file] [log] [blame]
Jiri Slabyb5635b12008-06-24 23:24:57 +02001/*
2 * HID driver for some belkin "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) 2007 Paul Walmsley
9 * Copyright (c) 2008 Jiri Slaby
10 */
11
12/*
13 * This program is free software; you can redistribute it and/or modify it
14 * under the terms of the GNU General Public License as published by the Free
15 * Software Foundation; either version 2 of the License, or (at your option)
16 * any later version.
17 */
18
19#include <linux/device.h>
20#include <linux/hid.h>
21#include <linux/module.h>
22
23#include "hid-ids.h"
24
25#define BELKIN_HIDDEV 0x01
26#define BELKIN_WKBD 0x02
27
28#define belkin_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
29 EV_KEY, (c))
30static int belkin_input_mapping(struct hid_device *hdev, struct hid_input *hi,
31 struct hid_field *field, struct hid_usage *usage,
32 unsigned long **bit, int *max)
33{
34 unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
35
36 if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER ||
37 !(quirks & BELKIN_WKBD))
38 return 0;
39
40 switch (usage->hid & HID_USAGE) {
41 case 0x03a: belkin_map_key_clear(KEY_SOUND); break;
42 case 0x03b: belkin_map_key_clear(KEY_CAMERA); break;
43 case 0x03c: belkin_map_key_clear(KEY_DOCUMENTS); break;
44 default:
45 return 0;
46 }
47 return 1;
48}
49
50static int belkin_probe(struct hid_device *hdev, const struct hid_device_id *id)
51{
52 unsigned long quirks = id->driver_data;
53 int ret;
54
55 hid_set_drvdata(hdev, (void *)quirks);
56
Jiri Slabyb5635b12008-06-24 23:24:57 +020057 ret = hid_parse(hdev);
58 if (ret) {
59 dev_err(&hdev->dev, "parse failed\n");
60 goto err_free;
61 }
62
Jiri Slaby93c10132008-06-27 00:04:24 +020063 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT |
64 ((quirks & BELKIN_HIDDEV) ? HID_CONNECT_HIDDEV_FORCE : 0));
Jiri Slabyb5635b12008-06-24 23:24:57 +020065 if (ret) {
66 dev_err(&hdev->dev, "hw start failed\n");
67 goto err_free;
68 }
69
70 return 0;
71err_free:
72 return ret;
73}
74
75static const struct hid_device_id belkin_devices[] = {
76 { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM),
77 .driver_data = BELKIN_HIDDEV },
78 { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD),
79 .driver_data = BELKIN_WKBD },
80 { }
81};
82MODULE_DEVICE_TABLE(hid, belkin_devices);
83
84static struct hid_driver belkin_driver = {
85 .name = "belkin",
86 .id_table = belkin_devices,
87 .input_mapping = belkin_input_mapping,
88 .probe = belkin_probe,
89};
90
91static int belkin_init(void)
92{
93 return hid_register_driver(&belkin_driver);
94}
95
96static void belkin_exit(void)
97{
98 hid_unregister_driver(&belkin_driver);
99}
100
101module_init(belkin_init);
102module_exit(belkin_exit);
103MODULE_LICENSE("GPL");
104
105HID_COMPAT_LOAD_DRIVER(belkin);