1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * HID driver for some sunplus "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 | static __u8 *sp_report_fixup(struct hid_device *hdev, __u8 *rdesc, |
22 | unsigned int *rsize) |
23 | { |
24 | if (*rsize >= 112 && rdesc[104] == 0x26 && rdesc[105] == 0x80 && |
25 | rdesc[106] == 0x03) { |
26 | hid_info(hdev, "fixing up Sunplus Wireless Desktop report descriptor\n" ); |
27 | rdesc[105] = rdesc[110] = 0x03; |
28 | rdesc[106] = rdesc[111] = 0x21; |
29 | } |
30 | return rdesc; |
31 | } |
32 | |
33 | #define sp_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \ |
34 | EV_KEY, (c)) |
35 | static int sp_input_mapping(struct hid_device *hdev, struct hid_input *hi, |
36 | struct hid_field *field, struct hid_usage *usage, |
37 | unsigned long **bit, int *max) |
38 | { |
39 | if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER) |
40 | return 0; |
41 | |
42 | switch (usage->hid & HID_USAGE) { |
43 | case 0x2003: sp_map_key_clear(KEY_ZOOMIN); break; |
44 | case 0x2103: sp_map_key_clear(KEY_ZOOMOUT); break; |
45 | default: |
46 | return 0; |
47 | } |
48 | return 1; |
49 | } |
50 | |
51 | static const struct hid_device_id sp_devices[] = { |
52 | { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) }, |
53 | { } |
54 | }; |
55 | MODULE_DEVICE_TABLE(hid, sp_devices); |
56 | |
57 | static struct hid_driver sp_driver = { |
58 | .name = "sunplus" , |
59 | .id_table = sp_devices, |
60 | .report_fixup = sp_report_fixup, |
61 | .input_mapping = sp_input_mapping, |
62 | }; |
63 | module_hid_driver(sp_driver); |
64 | |
65 | MODULE_LICENSE("GPL" ); |
66 | |