mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-28 23:24:50 +00:00
f425458eaf
Use the new module_hid_driver macro in all HID drivers that have a simple register/unregister init/exit. This also converts the hid drivers that test for a failure of hid_register_driver() and report the failure. Using module_hid_driver in those drivers removes the failure message. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
149 lines
3.8 KiB
C
149 lines
3.8 KiB
C
/*
|
|
* HID driver for some cypress "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/hid.h>
|
|
#include <linux/input.h>
|
|
#include <linux/module.h>
|
|
|
|
#include "hid-ids.h"
|
|
|
|
#define CP_RDESC_SWAPPED_MIN_MAX 0x01
|
|
#define CP_2WHEEL_MOUSE_HACK 0x02
|
|
#define CP_2WHEEL_MOUSE_HACK_ON 0x04
|
|
|
|
/*
|
|
* Some USB barcode readers from cypress have usage min and usage max in
|
|
* the wrong order
|
|
*/
|
|
static __u8 *cp_report_fixup(struct hid_device *hdev, __u8 *rdesc,
|
|
unsigned int *rsize)
|
|
{
|
|
unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
|
|
unsigned int i;
|
|
|
|
if (!(quirks & CP_RDESC_SWAPPED_MIN_MAX))
|
|
return rdesc;
|
|
|
|
for (i = 0; i < *rsize - 4; i++)
|
|
if (rdesc[i] == 0x29 && rdesc[i + 2] == 0x19) {
|
|
__u8 tmp;
|
|
|
|
rdesc[i] = 0x19;
|
|
rdesc[i + 2] = 0x29;
|
|
tmp = rdesc[i + 3];
|
|
rdesc[i + 3] = rdesc[i + 1];
|
|
rdesc[i + 1] = tmp;
|
|
}
|
|
return rdesc;
|
|
}
|
|
|
|
static int cp_input_mapped(struct hid_device *hdev, struct hid_input *hi,
|
|
struct hid_field *field, struct hid_usage *usage,
|
|
unsigned long **bit, int *max)
|
|
{
|
|
unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
|
|
|
|
if (!(quirks & CP_2WHEEL_MOUSE_HACK))
|
|
return 0;
|
|
|
|
if (usage->type == EV_REL && usage->code == REL_WHEEL)
|
|
set_bit(REL_HWHEEL, *bit);
|
|
if (usage->hid == 0x00090005)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cp_event(struct hid_device *hdev, struct hid_field *field,
|
|
struct hid_usage *usage, __s32 value)
|
|
{
|
|
unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
|
|
|
|
if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
|
|
!usage->type || !(quirks & CP_2WHEEL_MOUSE_HACK))
|
|
return 0;
|
|
|
|
if (usage->hid == 0x00090005) {
|
|
if (value)
|
|
quirks |= CP_2WHEEL_MOUSE_HACK_ON;
|
|
else
|
|
quirks &= ~CP_2WHEEL_MOUSE_HACK_ON;
|
|
hid_set_drvdata(hdev, (void *)quirks);
|
|
return 1;
|
|
}
|
|
|
|
if (usage->code == REL_WHEEL && (quirks & CP_2WHEEL_MOUSE_HACK_ON)) {
|
|
struct input_dev *input = field->hidinput->input;
|
|
|
|
input_event(input, usage->type, REL_HWHEEL, value);
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cp_probe(struct hid_device *hdev, const struct hid_device_id *id)
|
|
{
|
|
unsigned long quirks = id->driver_data;
|
|
int ret;
|
|
|
|
hid_set_drvdata(hdev, (void *)quirks);
|
|
|
|
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:
|
|
return ret;
|
|
}
|
|
|
|
static const struct hid_device_id cp_devices[] = {
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1),
|
|
.driver_data = CP_RDESC_SWAPPED_MIN_MAX },
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2),
|
|
.driver_data = CP_RDESC_SWAPPED_MIN_MAX },
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3),
|
|
.driver_data = CP_RDESC_SWAPPED_MIN_MAX },
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_4),
|
|
.driver_data = CP_RDESC_SWAPPED_MIN_MAX },
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE),
|
|
.driver_data = CP_2WHEEL_MOUSE_HACK },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(hid, cp_devices);
|
|
|
|
static struct hid_driver cp_driver = {
|
|
.name = "cypress",
|
|
.id_table = cp_devices,
|
|
.report_fixup = cp_report_fixup,
|
|
.input_mapped = cp_input_mapped,
|
|
.event = cp_event,
|
|
.probe = cp_probe,
|
|
};
|
|
module_hid_driver(cp_driver);
|
|
|
|
MODULE_LICENSE("GPL");
|