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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
b5635b12 JS |
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 | |
b5635b12 JS |
9 | * Copyright (c) 2008 Jiri Slaby |
10 | */ | |
11 | ||
12 | /* | |
b5635b12 JS |
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)) | |
26 | static 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 | ||
46 | static 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 | ||
b5635b12 JS |
53 | ret = hid_parse(hdev); |
54 | if (ret) { | |
4291ee30 | 55 | hid_err(hdev, "parse failed\n"); |
b5635b12 JS |
56 | goto err_free; |
57 | } | |
58 | ||
93c10132 JS |
59 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT | |
60 | ((quirks & BELKIN_HIDDEV) ? HID_CONNECT_HIDDEV_FORCE : 0)); | |
b5635b12 | 61 | if (ret) { |
4291ee30 | 62 | hid_err(hdev, "hw start failed\n"); |
b5635b12 JS |
63 | goto err_free; |
64 | } | |
65 | ||
66 | return 0; | |
67 | err_free: | |
68 | return ret; | |
69 | } | |
70 | ||
71 | static 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 | }; | |
78 | MODULE_DEVICE_TABLE(hid, belkin_devices); | |
79 | ||
80 | static struct hid_driver belkin_driver = { | |
81 | .name = "belkin", | |
82 | .id_table = belkin_devices, | |
83 | .input_mapping = belkin_input_mapping, | |
84 | .probe = belkin_probe, | |
85 | }; | |
f425458e | 86 | module_hid_driver(belkin_driver); |
b5635b12 | 87 | |
b5635b12 | 88 | MODULE_LICENSE("GPL"); |