1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-or-later
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * HID driver for Xin-Mo devices, currently only the Dual Arcade controller.
4*4882a593Smuzhiyun * Fixes the negative axis event values (the devices sends -2) to match the
5*4882a593Smuzhiyun * logical axis minimum of the HID report descriptor (the report announces
6*4882a593Smuzhiyun * -1). It is needed because hid-input discards out of bounds values.
7*4882a593Smuzhiyun * (This module is based on "hid-saitek" and "hid-lg".)
8*4882a593Smuzhiyun *
9*4882a593Smuzhiyun * Copyright (c) 2013 Olivier Scherler
10*4882a593Smuzhiyun */
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun /*
13*4882a593Smuzhiyun */
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun #include <linux/device.h>
16*4882a593Smuzhiyun #include <linux/hid.h>
17*4882a593Smuzhiyun #include <linux/module.h>
18*4882a593Smuzhiyun #include <linux/kernel.h>
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun #include "hid-ids.h"
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun /*
23*4882a593Smuzhiyun * Fix negative events that are out of bounds.
24*4882a593Smuzhiyun */
xinmo_event(struct hid_device * hdev,struct hid_field * field,struct hid_usage * usage,__s32 value)25*4882a593Smuzhiyun static int xinmo_event(struct hid_device *hdev, struct hid_field *field,
26*4882a593Smuzhiyun struct hid_usage *usage, __s32 value)
27*4882a593Smuzhiyun {
28*4882a593Smuzhiyun switch (usage->code) {
29*4882a593Smuzhiyun case ABS_X:
30*4882a593Smuzhiyun case ABS_Y:
31*4882a593Smuzhiyun case ABS_Z:
32*4882a593Smuzhiyun case ABS_RX:
33*4882a593Smuzhiyun if (value < -1) {
34*4882a593Smuzhiyun input_event(field->hidinput->input, usage->type,
35*4882a593Smuzhiyun usage->code, -1);
36*4882a593Smuzhiyun return 1;
37*4882a593Smuzhiyun }
38*4882a593Smuzhiyun break;
39*4882a593Smuzhiyun }
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun return 0;
42*4882a593Smuzhiyun }
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun static const struct hid_device_id xinmo_devices[] = {
45*4882a593Smuzhiyun { HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE) },
46*4882a593Smuzhiyun { HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_THT_2P_ARCADE) },
47*4882a593Smuzhiyun { }
48*4882a593Smuzhiyun };
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun MODULE_DEVICE_TABLE(hid, xinmo_devices);
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun static struct hid_driver xinmo_driver = {
53*4882a593Smuzhiyun .name = "xinmo",
54*4882a593Smuzhiyun .id_table = xinmo_devices,
55*4882a593Smuzhiyun .event = xinmo_event
56*4882a593Smuzhiyun };
57*4882a593Smuzhiyun
58*4882a593Smuzhiyun module_hid_driver(xinmo_driver);
59*4882a593Smuzhiyun MODULE_LICENSE("GPL");
60