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/*
* HID driver for UC-Logic devices not fully compliant with HID standard
*
* Copyright (c) 2010 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"
/*
* The original descriptors of WPXXXXU tablets have three report IDs, of
* which only two are used (8 and 9), and the remaining (7) seems to have
* the originally intended pen description which was abandoned for some
* reason. From this unused description it is possible to extract the
* actual physical extents and resolution. All the models use the same
* descriptor with different extents for the unused report ID.
*
* Here it is:
*
* Usage Page (Digitizer), ; Digitizer (0Dh)
* Usage (Pen), ; Pen (02h, application collection)
* Collection (Application),
* Report ID (7),
* Usage (Stylus), ; Stylus (20h, logical collection)
* Collection (Physical),
* Usage (Tip Switch), ; Tip switch (42h, momentary control)
* Usage (Barrel Switch), ; Barrel switch (44h, momentary control)
* Usage (Eraser), ; Eraser (45h, momentary control)
* Logical Minimum (0),
* Logical Maximum (1),
* Report Size (1),
* Report Count (3),
* Input (Variable),
* Report Count (3),
* Input (Constant, Variable),
* Usage (In Range), ; In range (32h, momentary control)
* Report Count (1),
* Input (Variable),
* Report Count (1),
* Input (Constant, Variable),
* Usage Page (Desktop), ; Generic desktop controls (01h)
* Usage (X), ; X (30h, dynamic value)
* Report Size (16),
* Report Count (1),
* Push,
* Unit Exponent (13),
* Unit (Inch^3),
* Physical Minimum (0),
* Physical Maximum (Xpm),
* Logical Maximum (Xlm),
* Input (Variable),
* Usage (Y), ; Y (31h, dynamic value)
* Physical Maximum (Ypm),
* Logical Maximum (Ylm),
* Input (Variable),
* Pop,
* Usage Page (Digitizer), ; Digitizer (0Dh)
* Usage (Tip Pressure), ; Tip pressure (30h, dynamic value)
* Logical Maximum (1023),
* Input (Variable),
* Report Size (16),
* End Collection,
* End Collection,
* Usage Page (Desktop), ; Generic desktop controls (01h)
* Usage (Mouse), ; Mouse (02h, application collection)
* Collection (Application),
* Report ID (8),
* Usage (Pointer), ; Pointer (01h, physical collection)
* Collection (Physical),
* Usage Page (Button), ; Button (09h)
* Usage Minimum (01h),
* Usage Maximum (03h),
* Logical Minimum (0),
* Logical Maximum (1),
* Report Count (3),
* Report Size (1),
* Input (Variable),
* Report Count (5),
* Input (Constant),
* Usage Page (Desktop), ; Generic desktop controls (01h)
* Usage (X), ; X (30h, dynamic value)
* Usage (Y), ; Y (31h, dynamic value)
* Usage (Wheel), ; Wheel (38h, dynamic value)
* Usage (00h),
* Logical Minimum (-127),
* Logical Maximum (127),
* Report Size (8),
* Report Count (4),
* Input (Variable, Relative),
* End Collection,
* End Collection,
* Usage Page (Desktop), ; Generic desktop controls (01h)
* Usage (Mouse), ; Mouse (02h, application collection)
* Collection (Application),
* Report ID (9),
* Usage (Pointer), ; Pointer (01h, physical collection)
* Collection (Physical),
* Usage Page (Button), ; Button (09h)
* Usage Minimum (01h),
* Usage Maximum (03h),
* Logical Minimum (0),
* Logical Maximum (1),
* Report Count (3),
* Report Size (1),
* Input (Variable),
* Report Count (5),
* Input (Constant),
* Usage Page (Desktop), ; Generic desktop controls (01h)
* Usage (X), ; X (30h, dynamic value)
* Usage (Y), ; Y (31h, dynamic value)
* Logical Minimum (0),
* Logical Maximum (32767),
* Physical Minimum (0),
* Physical Maximum (32767),
* Report Count (2),
* Report Size (16),
* Input (Variable),
* Usage Page (Digitizer), ; Digitizer (0Dh)
* Usage (Tip Pressure), ; Tip pressure (30h, dynamic value)
* Logical Maximum (1023),
* Report Count (1),
* Report Size (16),
* Input (Variable),
* End Collection,
* End Collection
*
* Here are the extents values for the WPXXXXU models:
*
* Xpm Xlm Ypm Ylm
* WP4030U 4000 8000 3000 6000
* WP5540U 5500 11000 4000 8000
* WP8060U 8000 16000 6000 12000
*
* This suggests that all of them have 2000 LPI resolution, as advertised.
*/
/* Size of the original descriptor of WPXXXXU tablets */
#define WPXXXXU_RDESC_ORIG_SIZE 212
/*
* Fixed WP4030U report descriptor.
* Although the hardware might actually support it, the mouse description
* has been removed, since there seems to be no devices having one and it
* wouldn't make much sense because of the working area size.
*/
static __u8 wp4030u_rdesc_fixed[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x02, /* Usage (Pen), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x09, /* Report ID (9), */
0x09, 0x20, /* Usage (Stylus), */
0xA0, /* Collection (Physical), */
0x75, 0x01, /* Report Size (1), */
0x09, 0x42, /* Usage (Tip Switch), */
0x09, 0x44, /* Usage (Barrel Switch), */
0x09, 0x46, /* Usage (Tablet Pick), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x05, /* Report Count (5), */
0x81, 0x01, /* Input (Constant), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x14, /* Logical Minimum (0), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x65, 0x13, /* Unit (Inch), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x46, 0xA0, 0x0F, /* Physical Maximum (4000), */
0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x46, 0xB8, 0x0B, /* Physical Maximum (3000), */
0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
/* Fixed WP5540U report descriptor */
static __u8 wp5540u_rdesc_fixed[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x02, /* Usage (Pen), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x09, /* Report ID (9), */
0x09, 0x20, /* Usage (Stylus), */
0xA0, /* Collection (Physical), */
0x75, 0x01, /* Report Size (1), */
0x09, 0x42, /* Usage (Tip Switch), */
0x09, 0x44, /* Usage (Barrel Switch), */
0x09, 0x46, /* Usage (Tablet Pick), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x05, /* Report Count (5), */
0x81, 0x01, /* Input (Constant), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x14, /* Logical Minimum (0), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x65, 0x13, /* Unit (Inch), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x46, 0x7C, 0x15, /* Physical Maximum (5500), */
0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x46, 0xA0, 0x0F, /* Physical Maximum (4000), */
0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0, /* End Collection, */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x02, /* Usage (Mouse), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x08, /* Report ID (8), */
0x09, 0x01, /* Usage (Pointer), */
0xA0, /* Collection (Physical), */
0x75, 0x01, /* Report Size (1), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x03, /* Usage Maximum (03h), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x05, /* Report Count (5), */
0x81, 0x01, /* Input (Constant), */
0x05, 0x01, /* Usage Page (Desktop), */
0x75, 0x08, /* Report Size (8), */
0x09, 0x30, /* Usage (X), */
0x09, 0x31, /* Usage (Y), */
0x15, 0x81, /* Logical Minimum (-127), */
0x25, 0x7F, /* Logical Maximum (127), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x06, /* Input (Variable, Relative), */
0x09, 0x38, /* Usage (Wheel), */
0x15, 0xFF, /* Logical Minimum (-1), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x06, /* Input (Variable, Relative), */
0x81, 0x01, /* Input (Constant), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
/* Fixed WP8060U report descriptor */
static __u8 wp8060u_rdesc_fixed[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x02, /* Usage (Pen), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x09, /* Report ID (9), */
0x09, 0x20, /* Usage (Stylus), */
0xA0, /* Collection (Physical), */
0x75, 0x01, /* Report Size (1), */
0x09, 0x42, /* Usage (Tip Switch), */
0x09, 0x44, /* Usage (Barrel Switch), */
0x09, 0x46, /* Usage (Tablet Pick), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x05, /* Report Count (5), */
0x81, 0x01, /* Input (Constant), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x14, /* Logical Minimum (0), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x65, 0x13, /* Unit (Inch), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x46, 0x40, 0x1F, /* Physical Maximum (8000), */
0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x46, 0x70, 0x17, /* Physical Maximum (6000), */
0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0, /* End Collection, */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x02, /* Usage (Mouse), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x08, /* Report ID (8), */
0x09, 0x01, /* Usage (Pointer), */
0xA0, /* Collection (Physical), */
0x75, 0x01, /* Report Size (1), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x03, /* Usage Maximum (03h), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x05, /* Report Count (5), */
0x81, 0x01, /* Input (Constant), */
0x05, 0x01, /* Usage Page (Desktop), */
0x75, 0x08, /* Report Size (8), */
0x09, 0x30, /* Usage (X), */
0x09, 0x31, /* Usage (Y), */
0x15, 0x81, /* Logical Minimum (-127), */
0x25, 0x7F, /* Logical Maximum (127), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x06, /* Input (Variable, Relative), */
0x09, 0x38, /* Usage (Wheel), */
0x15, 0xFF, /* Logical Minimum (-1), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x06, /* Input (Variable, Relative), */
0x81, 0x01, /* Input (Constant), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
static __u8 *uclogic_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
switch (hdev->product) {
case USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U:
if (*rsize == WPXXXXU_RDESC_ORIG_SIZE) {
rdesc = wp4030u_rdesc_fixed;
*rsize = sizeof(wp4030u_rdesc_fixed);
}
break;
case USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U:
if (*rsize == WPXXXXU_RDESC_ORIG_SIZE) {
rdesc = wp5540u_rdesc_fixed;
*rsize = sizeof(wp5540u_rdesc_fixed);
}
break;
case USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U:
if (*rsize == WPXXXXU_RDESC_ORIG_SIZE) {
rdesc = wp8060u_rdesc_fixed;
*rsize = sizeof(wp8060u_rdesc_fixed);
}
break;
}
return rdesc;
}
static const struct hid_device_id uclogic_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
{ }
};
MODULE_DEVICE_TABLE(hid, uclogic_devices);
static struct hid_driver uclogic_driver = {
.name = "uclogic",
.id_table = uclogic_devices,
.report_fixup = uclogic_report_fixup,
};
static int __init uclogic_init(void)
{
return hid_register_driver(&uclogic_driver);
}
static void __exit uclogic_exit(void)
{
hid_unregister_driver(&uclogic_driver);
}
module_init(uclogic_init);
module_exit(uclogic_exit);
MODULE_LICENSE("GPL");
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