1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 *  HID driver for PenMount touchscreens
4 *
5 *  Copyright (c) 2014 Christian Gmeiner <christian.gmeiner <at> gmail.com>
6 *
7 *  based on hid-penmount copyrighted by
8 *    PenMount Touch Solutions <penmount <at> seed.net.tw>
9 */
10
11/*
12 */
13
14#include <linux/module.h>
15#include <linux/hid.h>
16#include "hid-ids.h"
17
18static int penmount_input_mapping(struct hid_device *hdev,
19		struct hid_input *hi, struct hid_field *field,
20		struct hid_usage *usage, unsigned long **bit, int *max)
21{
22	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
23		if (((usage->hid - 1) & HID_USAGE) == 0) {
24			hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
25			return 1;
26		} else {
27			return -1;
28		}
29	}
30
31	return 0;
32}
33
34static const struct hid_device_id penmount_devices[] = {
35	{ HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_6000) },
36	{ }
37};
38MODULE_DEVICE_TABLE(hid, penmount_devices);
39
40static struct hid_driver penmount_driver = {
41	.name = "hid-penmount",
42	.id_table = penmount_devices,
43	.input_mapping = penmount_input_mapping,
44};
45
46module_hid_driver(penmount_driver);
47
48MODULE_AUTHOR("Christian Gmeiner <christian.gmeiner@gmail.com>");
49MODULE_DESCRIPTION("PenMount HID TouchScreen driver");
50MODULE_LICENSE("GPL");
51