106 lines
4.5 KiB
C
106 lines
4.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* HID driver for ViewSonic devices not fully compliant with HID standard
|
|
*
|
|
* Copyright (c) 2017 Nikolai Kondrashov
|
|
*/
|
|
|
|
/*
|
|
* 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/module.h>
|
|
|
|
#include "hid-ids.h"
|
|
|
|
/* Size of the original descriptor of PD1011 signature pad */
|
|
#define PD1011_RDESC_ORIG_SIZE 408
|
|
|
|
/* Fixed report descriptor of PD1011 signature pad */
|
|
static __u8 pd1011_rdesc_fixed[] = {
|
|
0x05, 0x0D, /* Usage Page (Digitizer), */
|
|
0x09, 0x02, /* Usage (Pen), */
|
|
0xA1, 0x01, /* Collection (Application), */
|
|
0x85, 0x02, /* Report ID (2), */
|
|
0x09, 0x20, /* Usage (Stylus), */
|
|
0xA0, /* Collection (Physical), */
|
|
0x75, 0x10, /* Report Size (16), */
|
|
0x95, 0x01, /* Report Count (1), */
|
|
0xA4, /* Push, */
|
|
0x05, 0x01, /* Usage Page (Desktop), */
|
|
0x65, 0x13, /* Unit (Inch), */
|
|
0x55, 0xFD, /* Unit Exponent (-3), */
|
|
0x34, /* Physical Minimum (0), */
|
|
0x09, 0x30, /* Usage (X), */
|
|
0x46, 0x5D, 0x21, /* Physical Maximum (8541), */
|
|
0x27, 0x80, 0xA9,
|
|
0x00, 0x00, /* Logical Maximum (43392), */
|
|
0x81, 0x02, /* Input (Variable), */
|
|
0x09, 0x31, /* Usage (Y), */
|
|
0x46, 0xDA, 0x14, /* Physical Maximum (5338), */
|
|
0x26, 0xF0, 0x69, /* Logical Maximum (27120), */
|
|
0x81, 0x02, /* Input (Variable), */
|
|
0xB4, /* Pop, */
|
|
0x14, /* Logical Minimum (0), */
|
|
0x25, 0x01, /* Logical Maximum (1), */
|
|
0x75, 0x01, /* Report Size (1), */
|
|
0x95, 0x01, /* Report Count (1), */
|
|
0x81, 0x03, /* Input (Constant, Variable), */
|
|
0x09, 0x32, /* Usage (In Range), */
|
|
0x09, 0x42, /* Usage (Tip Switch), */
|
|
0x95, 0x02, /* Report Count (2), */
|
|
0x81, 0x02, /* Input (Variable), */
|
|
0x95, 0x05, /* Report Count (5), */
|
|
0x81, 0x03, /* Input (Constant, Variable), */
|
|
0x75, 0x10, /* Report Size (16), */
|
|
0x95, 0x01, /* Report Count (1), */
|
|
0x09, 0x30, /* Usage (Tip Pressure), */
|
|
0x15, 0x05, /* Logical Minimum (5), */
|
|
0x26, 0xFF, 0x07, /* Logical Maximum (2047), */
|
|
0x81, 0x02, /* Input (Variable), */
|
|
0x75, 0x10, /* Report Size (16), */
|
|
0x95, 0x01, /* Report Count (1), */
|
|
0x81, 0x03, /* Input (Constant, Variable), */
|
|
0xC0, /* End Collection, */
|
|
0xC0 /* End Collection */
|
|
};
|
|
|
|
static __u8 *viewsonic_report_fixup(struct hid_device *hdev, __u8 *rdesc,
|
|
unsigned int *rsize)
|
|
{
|
|
switch (hdev->product) {
|
|
case USB_DEVICE_ID_VIEWSONIC_PD1011:
|
|
case USB_DEVICE_ID_SIGNOTEC_VIEWSONIC_PD1011:
|
|
if (*rsize == PD1011_RDESC_ORIG_SIZE) {
|
|
rdesc = pd1011_rdesc_fixed;
|
|
*rsize = sizeof(pd1011_rdesc_fixed);
|
|
}
|
|
break;
|
|
}
|
|
|
|
return rdesc;
|
|
}
|
|
|
|
static const struct hid_device_id viewsonic_devices[] = {
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_VIEWSONIC,
|
|
USB_DEVICE_ID_VIEWSONIC_PD1011) },
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_SIGNOTEC,
|
|
USB_DEVICE_ID_SIGNOTEC_VIEWSONIC_PD1011) },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(hid, viewsonic_devices);
|
|
|
|
static struct hid_driver viewsonic_driver = {
|
|
.name = "viewsonic",
|
|
.id_table = viewsonic_devices,
|
|
.report_fixup = viewsonic_report_fixup,
|
|
};
|
|
module_hid_driver(viewsonic_driver);
|
|
|
|
MODULE_LICENSE("GPL");
|