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
21static __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))
35static 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
51static const struct hid_device_id sp_devices[] = {
52	{ HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
53	{ }
54};
55MODULE_DEVICE_TABLE(hid, sp_devices);
56
57static 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};
63module_hid_driver(sp_driver);
64
65MODULE_LICENSE("GPL");

 
 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");