1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 *  HID driver for some gyration "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) 2008 Jiri Slaby
9 *  Copyright (c) 2006-2008 Jiri Kosina
10 */
11
12/*
13 */
14
15#include <linux/device.h>
16#include <linux/input.h>
17#include <linux/hid.h>
18#include <linux/module.h>
19
20#include "hid-ids.h"
21
22#define gy_map_key_clear(c)	hid_map_usage_clear(hi, usage, bit, max, \
23					EV_KEY, (c))
24static int gyration_input_mapping(struct hid_device *hdev, struct hid_input *hi,
25		struct hid_field *field, struct hid_usage *usage,
26		unsigned long **bit, int *max)
27{
28	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR)
29		return 0;
30
31	set_bit(EV_REP, hi->input->evbit);
32	switch (usage->hid & HID_USAGE) {
33	/* Reported on Gyration MCE Remote */
34	case 0x00d: gy_map_key_clear(KEY_HOME);		break;
35	case 0x024: gy_map_key_clear(KEY_DVD);		break;
36	case 0x025: gy_map_key_clear(KEY_PVR);		break;
37	case 0x046: gy_map_key_clear(KEY_MEDIA);	break;
38	case 0x047: gy_map_key_clear(KEY_MP3);		break;
39	case 0x048: gy_map_key_clear(KEY_MEDIA);	break;
40	case 0x049: gy_map_key_clear(KEY_CAMERA);	break;
41	case 0x04a: gy_map_key_clear(KEY_VIDEO);	break;
42	case 0x05a: gy_map_key_clear(KEY_TEXT);		break;
43	case 0x05b: gy_map_key_clear(KEY_RED);		break;
44	case 0x05c: gy_map_key_clear(KEY_GREEN);	break;
45	case 0x05d: gy_map_key_clear(KEY_YELLOW);	break;
46	case 0x05e: gy_map_key_clear(KEY_BLUE);		break;
47
48	default:
49		return 0;
50	}
51	return 1;
52}
53
54static int gyration_event(struct hid_device *hdev, struct hid_field *field,
55		struct hid_usage *usage, __s32 value)
56{
57
58	if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput)
59		return 0;
60
61	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK &&
62			(usage->hid & 0xff) == 0x82) {
63		struct input_dev *input = field->hidinput->input;
64		input_event(input, usage->type, usage->code, 1);
65		input_sync(input);
66		input_event(input, usage->type, usage->code, 0);
67		input_sync(input);
68		return 1;
69	}
70
71	return 0;
72}
73
74static const struct hid_device_id gyration_devices[] = {
75	{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
76	{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
77	{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
78	{ }
79};
80MODULE_DEVICE_TABLE(hid, gyration_devices);
81
82static struct hid_driver gyration_driver = {
83	.name = "gyration",
84	.id_table = gyration_devices,
85	.input_mapping = gyration_input_mapping,
86	.event = gyration_event,
87};
88module_hid_driver(gyration_driver);
89
90MODULE_LICENSE("GPL");
91