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