mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-25 18:30:06 +00:00
![Jiri Kosina](/assets/img/avatar_default.png)
Paul Walmsley has implemented dynamic quirk handling back in 2007 through commits:2eb5dc30eb
("USB HID: encapsulate quirk handling into hid-quirks.c")8222fbe67c
("USB HID: clarify static quirk handling as squirks")8cef908235
("USB HID: add support for dynamically-created quirks")876b9276b9
("USB HID: add 'quirks' module parameter") and as such, his copyright rightly belongs to drivers/hid/usbhid/hid-quirks.c file. However when generic HID code has been converted to bus and individual quirks separated out to individual drivers on the bus, the copyright has been blindly transfered into all the tiny drivers, which actually don't contain any of Pauls' copyrighted code. Remove the copyright from those sub-drivers. Signed-off-by: Jiri Kosina <jkosina@suse.cz> Acked-by: Paul Walmsley <paul@pwsan.com>
162 lines
3.6 KiB
C
162 lines
3.6 KiB
C
/*
|
|
* HID driver for some a4tech "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) 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 <linux/slab.h>
|
|
|
|
#include "hid-ids.h"
|
|
|
|
#define A4_2WHEEL_MOUSE_HACK_7 0x01
|
|
#define A4_2WHEEL_MOUSE_HACK_B8 0x02
|
|
|
|
struct a4tech_sc {
|
|
unsigned long quirks;
|
|
unsigned int hw_wheel;
|
|
__s32 delayed_value;
|
|
};
|
|
|
|
static int a4_input_mapped(struct hid_device *hdev, struct hid_input *hi,
|
|
struct hid_field *field, struct hid_usage *usage,
|
|
unsigned long **bit, int *max)
|
|
{
|
|
struct a4tech_sc *a4 = hid_get_drvdata(hdev);
|
|
|
|
if (usage->type == EV_REL && usage->code == REL_WHEEL)
|
|
set_bit(REL_HWHEEL, *bit);
|
|
|
|
if ((a4->quirks & A4_2WHEEL_MOUSE_HACK_7) && usage->hid == 0x00090007)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int a4_event(struct hid_device *hdev, struct hid_field *field,
|
|
struct hid_usage *usage, __s32 value)
|
|
{
|
|
struct a4tech_sc *a4 = hid_get_drvdata(hdev);
|
|
struct input_dev *input;
|
|
|
|
if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
|
|
!usage->type)
|
|
return 0;
|
|
|
|
input = field->hidinput->input;
|
|
|
|
if (a4->quirks & A4_2WHEEL_MOUSE_HACK_B8) {
|
|
if (usage->type == EV_REL && usage->code == REL_WHEEL) {
|
|
a4->delayed_value = value;
|
|
return 1;
|
|
}
|
|
|
|
if (usage->hid == 0x000100b8) {
|
|
input_event(input, EV_REL, value ? REL_HWHEEL :
|
|
REL_WHEEL, a4->delayed_value);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
if ((a4->quirks & A4_2WHEEL_MOUSE_HACK_7) && usage->hid == 0x00090007) {
|
|
a4->hw_wheel = !!value;
|
|
return 1;
|
|
}
|
|
|
|
if (usage->code == REL_WHEEL && a4->hw_wheel) {
|
|
input_event(input, usage->type, REL_HWHEEL, value);
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int a4_probe(struct hid_device *hdev, const struct hid_device_id *id)
|
|
{
|
|
struct a4tech_sc *a4;
|
|
int ret;
|
|
|
|
a4 = kzalloc(sizeof(*a4), GFP_KERNEL);
|
|
if (a4 == NULL) {
|
|
hid_err(hdev, "can't alloc device descriptor\n");
|
|
ret = -ENOMEM;
|
|
goto err_free;
|
|
}
|
|
|
|
a4->quirks = id->driver_data;
|
|
|
|
hid_set_drvdata(hdev, a4);
|
|
|
|
ret = hid_parse(hdev);
|
|
if (ret) {
|
|
hid_err(hdev, "parse failed\n");
|
|
goto err_free;
|
|
}
|
|
|
|
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
|
|
if (ret) {
|
|
hid_err(hdev, "hw start failed\n");
|
|
goto err_free;
|
|
}
|
|
|
|
return 0;
|
|
err_free:
|
|
kfree(a4);
|
|
return ret;
|
|
}
|
|
|
|
static void a4_remove(struct hid_device *hdev)
|
|
{
|
|
struct a4tech_sc *a4 = hid_get_drvdata(hdev);
|
|
|
|
hid_hw_stop(hdev);
|
|
kfree(a4);
|
|
}
|
|
|
|
static const struct hid_device_id a4_devices[] = {
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU),
|
|
.driver_data = A4_2WHEEL_MOUSE_HACK_7 },
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D),
|
|
.driver_data = A4_2WHEEL_MOUSE_HACK_B8 },
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649),
|
|
.driver_data = A4_2WHEEL_MOUSE_HACK_B8 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(hid, a4_devices);
|
|
|
|
static struct hid_driver a4_driver = {
|
|
.name = "a4tech",
|
|
.id_table = a4_devices,
|
|
.input_mapped = a4_input_mapped,
|
|
.event = a4_event,
|
|
.probe = a4_probe,
|
|
.remove = a4_remove,
|
|
};
|
|
|
|
static int __init a4_init(void)
|
|
{
|
|
return hid_register_driver(&a4_driver);
|
|
}
|
|
|
|
static void __exit a4_exit(void)
|
|
{
|
|
hid_unregister_driver(&a4_driver);
|
|
}
|
|
|
|
module_init(a4_init);
|
|
module_exit(a4_exit);
|
|
MODULE_LICENSE("GPL");
|