HID: viewsonic: Support PD1011 signature pad (7c2af0a1) · Commits · e / devices / android_kernel_fairphone_FP5

drivers/hid/Kconfig

+6 −0

Original line number	Original line	Diff line number	Diff line
	@@ -412,6 +412,12 @@ config HID_WALTOP
	---help---		---help---
	Support for Waltop tablets.		Support for Waltop tablets.

			config HID_VIEWSONIC
			tristate "ViewSonic/Signotec"
			depends on HID
			help
			Support for ViewSonic/Signotec PD1011 signature pad.

	config HID_GYRATION		config HID_GYRATION
	tristate "Gyration remote control"		tristate "Gyration remote control"
	depends on HID		depends on HID

drivers/hid/Makefile

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -114,6 +114,7 @@ obj-$(CONFIG_HID_LED) += hid-led.o
	obj-$(CONFIG_HID_XINMO) += hid-xinmo.o		obj-$(CONFIG_HID_XINMO) += hid-xinmo.o
	obj-$(CONFIG_HID_ZEROPLUS) += hid-zpff.o		obj-$(CONFIG_HID_ZEROPLUS) += hid-zpff.o
	obj-$(CONFIG_HID_ZYDACRON) += hid-zydacron.o		obj-$(CONFIG_HID_ZYDACRON) += hid-zydacron.o
			obj-$(CONFIG_HID_VIEWSONIC) += hid-viewsonic.o

	wacom-objs := wacom_wac.o wacom_sys.o		wacom-objs := wacom_wac.o wacom_sys.o
	obj-$(CONFIG_HID_WACOM) += wacom.o		obj-$(CONFIG_HID_WACOM) += wacom.o

drivers/hid/hid-ids.h

+6 −0

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	@@ -1241,4 +1241,10 @@
	#define USB_VENDOR_ID_UGTIZER 0x2179		#define USB_VENDOR_ID_UGTIZER 0x2179
	#define USB_DEVICE_ID_UGTIZER_TABLET_GP0610 0x0053		#define USB_DEVICE_ID_UGTIZER_TABLET_GP0610 0x0053

			#define USB_VENDOR_ID_VIEWSONIC 0x0543
			#define USB_DEVICE_ID_VIEWSONIC_PD1011 0xe621

			#define USB_VENDOR_ID_SIGNOTEC 0x2133
			#define USB_DEVICE_ID_SIGNOTEC_VIEWSONIC_PD1011 0x0018

	#endif		#endif

drivers/hid/hid-viewsonic.c

0 → 100644

+105 −0

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			// 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");