1/*
2 * HID driver for some sunplus "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
24static __u8 *sp_report_fixup(struct hid_device *hdev, __u8 *rdesc,
25 unsigned int *rsize)
26{
27 if (*rsize >= 112 && rdesc[104] == 0x26 && rdesc[105] == 0x80 &&
28 rdesc[106] == 0x03) {
29 hid_info(hdev, "fixing up Sunplus Wireless Desktop report descriptor\n");
30 rdesc[105] = rdesc[110] = 0x03;
31 rdesc[106] = rdesc[111] = 0x21;
32 }
33 return rdesc;
34}
35
36#define sp_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
37 EV_KEY, (c))
38static int sp_input_mapping(struct hid_device *hdev, struct hid_input *hi,
39 struct hid_field *field, struct hid_usage *usage,
40 unsigned long **bit, int *max)
41{
42 if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
43 return 0;
44
45 switch (usage->hid & HID_USAGE) {
46 case 0x2003: sp_map_key_clear(KEY_ZOOMIN); break;
47 case 0x2103: sp_map_key_clear(KEY_ZOOMOUT); break;
48 default:
49 return 0;
50 }
51 return 1;
52}
53
54static const struct hid_device_id sp_devices[] = {
55 { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
56 { }
57};
58MODULE_DEVICE_TABLE(hid, sp_devices);
59
60static struct hid_driver sp_driver = {
61 .name = "sunplus",
62 .id_table = sp_devices,
63 .report_fixup = sp_report_fixup,
64 .input_mapping = sp_input_mapping,
65};
66module_hid_driver(sp_driver);
67
68MODULE_LICENSE("GPL");
69