1/*
  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
 57	ret = hid_parse(hdev);
 58	if (ret) {
 59		hid_err(hdev, "parse failed\n");
 60		goto err_free;
 61	}
 62
 63	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT |
 64		((quirks & BELKIN_HIDDEV) ? HID_CONNECT_HIDDEV_FORCE : 0));
 65	if (ret) {
 66		hid_err(hdev, "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 __init belkin_init(void)
 92{
 93	return hid_register_driver(&belkin_driver);
 94}
 95
 96static void __exit belkin_exit(void)
 97{
 98	hid_unregister_driver(&belkin_driver);
 99}
100
101module_init(belkin_init);
102module_exit(belkin_exit);
103MODULE_LICENSE("GPL");

 1// SPDX-License-Identifier: GPL-2.0-or-later
 2/*
 3 *  HID driver for some belkin "special" devices
 4 *
 5 *  Copyright (c) 1999 Andreas Gal
 6 *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
 7 *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
 8 *  Copyright (c) 2006-2007 Jiri Kosina
 
 9 *  Copyright (c) 2008 Jiri Slaby
10 */
11
12/*
 
 
 
 
13 */
14
15#include <linux/device.h>
16#include <linux/hid.h>
17#include <linux/module.h>
18
19#include "hid-ids.h"
20
21#define BELKIN_HIDDEV	0x01
22#define BELKIN_WKBD	0x02
23
24#define belkin_map_key_clear(c)	hid_map_usage_clear(hi, usage, bit, max, \
25					EV_KEY, (c))
26static int belkin_input_mapping(struct hid_device *hdev, struct hid_input *hi,
27		struct hid_field *field, struct hid_usage *usage,
28		unsigned long **bit, int *max)
29{
30	unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
31
32	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER ||
33			!(quirks & BELKIN_WKBD))
34		return 0;
35
36	switch (usage->hid & HID_USAGE) {
37	case 0x03a: belkin_map_key_clear(KEY_SOUND);		break;
38	case 0x03b: belkin_map_key_clear(KEY_CAMERA);		break;
39	case 0x03c: belkin_map_key_clear(KEY_DOCUMENTS);	break;
40	default:
41		return 0;
42	}
43	return 1;
44}
45
46static int belkin_probe(struct hid_device *hdev, const struct hid_device_id *id)
47{
48	unsigned long quirks = id->driver_data;
49	int ret;
50
51	hid_set_drvdata(hdev, (void *)quirks);
52
53	ret = hid_parse(hdev);
54	if (ret) {
55		hid_err(hdev, "parse failed\n");
56		goto err_free;
57	}
58
59	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT |
60		((quirks & BELKIN_HIDDEV) ? HID_CONNECT_HIDDEV_FORCE : 0));
61	if (ret) {
62		hid_err(hdev, "hw start failed\n");
63		goto err_free;
64	}
65
66	return 0;
67err_free:
68	return ret;
69}
70
71static const struct hid_device_id belkin_devices[] = {
72	{ HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM),
73		.driver_data = BELKIN_HIDDEV },
74	{ HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD),
75		.driver_data = BELKIN_WKBD },
76	{ }
77};
78MODULE_DEVICE_TABLE(hid, belkin_devices);
79
80static struct hid_driver belkin_driver = {
81	.name = "belkin",
82	.id_table = belkin_devices,
83	.input_mapping = belkin_input_mapping,
84	.probe = belkin_probe,
85};
86module_hid_driver(belkin_driver);
87
 
 
 
 
 
 
 
 
 
 
 
 
88MODULE_LICENSE("GPL");