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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
cb2c9e3f OS |
2 | /* |
3 | * HID driver for Xin-Mo devices, currently only the Dual Arcade controller. | |
4 | * Fixes the negative axis event values (the devices sends -2) to match the | |
5 | * logical axis minimum of the HID report descriptor (the report announces | |
6 | * -1). It is needed because hid-input discards out of bounds values. | |
7 | * (This module is based on "hid-saitek" and "hid-lg".) | |
8 | * | |
9 | * Copyright (c) 2013 Olivier Scherler | |
10 | */ | |
11 | ||
12 | /* | |
cb2c9e3f OS |
13 | */ |
14 | ||
15 | #include <linux/device.h> | |
16 | #include <linux/hid.h> | |
17 | #include <linux/module.h> | |
18 | #include <linux/kernel.h> | |
19 | ||
20 | #include "hid-ids.h" | |
21 | ||
22 | /* | |
23 | * Fix negative events that are out of bounds. | |
24 | */ | |
25 | static int xinmo_event(struct hid_device *hdev, struct hid_field *field, | |
26 | struct hid_usage *usage, __s32 value) | |
27 | { | |
28 | switch (usage->code) { | |
29 | case ABS_X: | |
30 | case ABS_Y: | |
31 | case ABS_Z: | |
32 | case ABS_RX: | |
33 | if (value < -1) { | |
34 | input_event(field->hidinput->input, usage->type, | |
35 | usage->code, -1); | |
36 | return 1; | |
37 | } | |
38 | break; | |
39 | } | |
40 | ||
41 | return 0; | |
42 | } | |
43 | ||
44 | static const struct hid_device_id xinmo_devices[] = { | |
45 | { HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE) }, | |
9257821c | 46 | { HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_THT_2P_ARCADE) }, |
cb2c9e3f OS |
47 | { } |
48 | }; | |
49 | ||
50 | MODULE_DEVICE_TABLE(hid, xinmo_devices); | |
51 | ||
52 | static struct hid_driver xinmo_driver = { | |
53 | .name = "xinmo", | |
54 | .id_table = xinmo_devices, | |
55 | .event = xinmo_event | |
56 | }; | |
57 | ||
c0b20fd9 | 58 | module_hid_driver(xinmo_driver); |
cb2c9e3f | 59 | MODULE_LICENSE("GPL"); |