[linux-block.git] / drivers / hid / hid-xinmo.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  HID driver for Xin-Mo devices, currently only the Dual Arcade controller.
 *  Fixes the negative axis event values (the devices sends -2) to match the
 *  logical axis minimum of the HID report descriptor (the report announces
 *  -1). It is needed because hid-input discards out of bounds values.
 *  (This module is based on "hid-saitek" and "hid-lg".)
 *
 *  Copyright (c) 2013 Olivier Scherler
 */

/*
 */

#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/kernel.h>

#include "hid-ids.h"

/*
 * Fix negative events that are out of bounds.
 */
static int xinmo_event(struct hid_device *hdev, struct hid_field *field,
		struct hid_usage *usage, __s32 value)
{
	switch (usage->code) {
	case ABS_X:
	case ABS_Y:
	case ABS_Z:
	case ABS_RX:
		if (value < -1) {
			input_event(field->hidinput->input, usage->type,
				usage->code, -1);
			return 1;
		}
		break;
	}

	return 0;
}

static const struct hid_device_id xinmo_devices[] = {
	{ HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_THT_2P_ARCADE) },
	{ }
};

MODULE_DEVICE_TABLE(hid, xinmo_devices);

static struct hid_driver xinmo_driver = {
	.name = "xinmo",
	.id_table = xinmo_devices,
	.event = xinmo_event
};

module_hid_driver(xinmo_driver);
MODULE_LICENSE("GPL");
Commit	Line	Data
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");