mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-05 12:16:42 +07:00
1f243e302c
Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
96 lines
2.4 KiB
C
96 lines
2.4 KiB
C
/*
|
|
* HID driver for some ezkey "special" devices
|
|
*
|
|
* Copyright (c) 1999 Andreas Gal
|
|
* Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
|
|
* Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
|
|
* Copyright (c) 2006-2007 Jiri Kosina
|
|
* Copyright (c) 2007 Paul Walmsley
|
|
* Copyright (c) 2008 Jiri Slaby
|
|
*/
|
|
|
|
/*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the Free
|
|
* Software Foundation; either version 2 of the License, or (at your option)
|
|
* any later version.
|
|
*/
|
|
|
|
#include <linux/device.h>
|
|
#include <linux/input.h>
|
|
#include <linux/hid.h>
|
|
#include <linux/module.h>
|
|
|
|
#include "hid-ids.h"
|
|
|
|
#define ez_map_rel(c) hid_map_usage(hi, usage, bit, max, EV_REL, (c))
|
|
#define ez_map_key(c) hid_map_usage(hi, usage, bit, max, EV_KEY, (c))
|
|
|
|
static int ez_input_mapping(struct hid_device *hdev, struct hid_input *hi,
|
|
struct hid_field *field, struct hid_usage *usage,
|
|
unsigned long **bit, int *max)
|
|
{
|
|
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
|
|
return 0;
|
|
|
|
switch (usage->hid & HID_USAGE) {
|
|
case 0x230: ez_map_key(BTN_MOUSE); break;
|
|
case 0x231: ez_map_rel(REL_WHEEL); break;
|
|
/*
|
|
* this keyboard has a scrollwheel implemented in
|
|
* totally broken way. We map this usage temporarily
|
|
* to HWHEEL and handle it in the event quirk handler
|
|
*/
|
|
case 0x232: ez_map_rel(REL_HWHEEL); break;
|
|
default:
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int ez_event(struct hid_device *hdev, struct hid_field *field,
|
|
struct hid_usage *usage, __s32 value)
|
|
{
|
|
if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
|
|
!usage->type)
|
|
return 0;
|
|
|
|
/* handle the temporary quirky mapping to HWHEEL */
|
|
if (usage->type == EV_REL && usage->code == REL_HWHEEL) {
|
|
struct input_dev *input = field->hidinput->input;
|
|
input_event(input, usage->type, REL_WHEEL, -value);
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct hid_device_id ez_devices[] = {
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(hid, ez_devices);
|
|
|
|
static struct hid_driver ez_driver = {
|
|
.name = "ezkey",
|
|
.id_table = ez_devices,
|
|
.input_mapping = ez_input_mapping,
|
|
.event = ez_event,
|
|
};
|
|
|
|
static int ez_init(void)
|
|
{
|
|
return hid_register_driver(&ez_driver);
|
|
}
|
|
|
|
static void ez_exit(void)
|
|
{
|
|
hid_unregister_driver(&ez_driver);
|
|
}
|
|
|
|
module_init(ez_init);
|
|
module_exit(ez_exit);
|
|
MODULE_LICENSE("GPL");
|
|
|
|
HID_COMPAT_LOAD_DRIVER(ezkey);
|