1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 *  HID driver for some monterey "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 *mr_report_fixup(struct hid_device *hdev, __u8 *rdesc,
22		unsigned int *rsize)
23{
24	if (*rsize >= 31 && rdesc[29] == 0x05 && rdesc[30] == 0x09) {
25		hid_info(hdev, "fixing up button/consumer in HID report descriptor\n");
26		rdesc[30] = 0x0c;
27	}
28	return rdesc;
29}
30
31#define mr_map_key_clear(c)	hid_map_usage_clear(hi, usage, bit, max, \
32					EV_KEY, (c))
33static int mr_input_mapping(struct hid_device *hdev, struct hid_input *hi,
34		struct hid_field *field, struct hid_usage *usage,
35		unsigned long **bit, int *max)
36{
37	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
38		return 0;
39
40	switch (usage->hid & HID_USAGE) {
41	case 0x156: mr_map_key_clear(KEY_WORDPROCESSOR);	break;
42	case 0x157: mr_map_key_clear(KEY_SPREADSHEET);		break;
43	case 0x158: mr_map_key_clear(KEY_PRESENTATION);		break;
44	case 0x15c: mr_map_key_clear(KEY_STOP);			break;
45	default:
46		return 0;
47	}
48	return 1;
49}
50
51static const struct hid_device_id mr_devices[] = {
52	{ HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
53	{ }
54};
55MODULE_DEVICE_TABLE(hid, mr_devices);
56
57static struct hid_driver mr_driver = {
58	.name = "monterey",
59	.id_table = mr_devices,
60	.report_fixup = mr_report_fixup,
61	.input_mapping = mr_input_mapping,
62};
63module_hid_driver(mr_driver);
64
65MODULE_LICENSE("GPL");
66