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");

 
 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) 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#define BELKIN_HIDDEV	0x01
25#define BELKIN_WKBD	0x02
26
27#define belkin_map_key_clear(c)	hid_map_usage_clear(hi, usage, bit, max, \
28					EV_KEY, (c))
29static int belkin_input_mapping(struct hid_device *hdev, struct hid_input *hi,
30		struct hid_field *field, struct hid_usage *usage,
31		unsigned long **bit, int *max)
32{
33	unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
34
35	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER ||
36			!(quirks & BELKIN_WKBD))
37		return 0;
38
39	switch (usage->hid & HID_USAGE) {
40	case 0x03a: belkin_map_key_clear(KEY_SOUND);		break;
41	case 0x03b: belkin_map_key_clear(KEY_CAMERA);		break;
42	case 0x03c: belkin_map_key_clear(KEY_DOCUMENTS);	break;
43	default:
44		return 0;
45	}
46	return 1;
47}
48
49static int belkin_probe(struct hid_device *hdev, const struct hid_device_id *id)
50{
51	unsigned long quirks = id->driver_data;
52	int ret;
53
54	hid_set_drvdata(hdev, (void *)quirks);
55
56	ret = hid_parse(hdev);
57	if (ret) {
58		hid_err(hdev, "parse failed\n");
59		goto err_free;
60	}
61
62	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT |
63		((quirks & BELKIN_HIDDEV) ? HID_CONNECT_HIDDEV_FORCE : 0));
64	if (ret) {
65		hid_err(hdev, "hw start failed\n");
66		goto err_free;
67	}
68
69	return 0;
70err_free:
71	return ret;
72}
73
74static const struct hid_device_id belkin_devices[] = {
75	{ HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM),
76		.driver_data = BELKIN_HIDDEV },
77	{ HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD),
78		.driver_data = BELKIN_WKBD },
79	{ }
80};
81MODULE_DEVICE_TABLE(hid, belkin_devices);
82
83static struct hid_driver belkin_driver = {
84	.name = "belkin",
85	.id_table = belkin_devices,
86	.input_mapping = belkin_input_mapping,
87	.probe = belkin_probe,
88};
89module_hid_driver(belkin_driver);
90
91MODULE_LICENSE("GPL");