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7fb0413baa
The HID descriptor of many of Wacom's touch input devices include a
"Confidence" usage that signals if a particular touch collection contains
useful data. The driver does not look at this flag, however, which causes
even invalid contacts to be reported to userspace. A lucky combination of
kernel event filtering and device behavior (specifically: contact ID 0 ==
invalid, contact ID >0 == valid; and order all data so that all valid
contacts are reported before any invalid contacts) spare most devices from
any visibly-bad behavior.
The DTH-2452 is one example of an unlucky device that misbehaves. It uses
ID 0 for both the first valid contact and all invalid contacts. Because
we report both the valid and invalid contacts, the kernel reports that
contact 0 first goes down (valid) and then goes up (invalid) in every
report. This causes ~100 clicks per second simply by touching the screen.
This patch inroduces new `confidence` flag in our `hid_data` structure.
The value is initially set to `true` at the start of a report and can be
set to `false` if an invalid touch usage is seen.
Link: https://github.com/linuxwacom/input-wacom/issues/270
Fixes: f8b6a74719 ("HID: wacom: generic: Support multiple tools per report")
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Tested-by: Joshua Dickens <joshua.dickens@wacom.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
364 lines
11 KiB
C
364 lines
11 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* drivers/input/tablet/wacom_wac.h
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*/
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#ifndef WACOM_WAC_H
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#define WACOM_WAC_H
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#include <linux/types.h>
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#include <linux/hid.h>
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#include <linux/kfifo.h>
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/* maximum packet length for USB/BT devices */
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#define WACOM_PKGLEN_MAX 361
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#define WACOM_NAME_MAX 64
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#define WACOM_MAX_REMOTES 5
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#define WACOM_STATUS_UNKNOWN 255
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/* packet length for individual models */
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#define WACOM_PKGLEN_BBFUN 9
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#define WACOM_PKGLEN_TPC1FG 5
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#define WACOM_PKGLEN_TPC1FG_B 10
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#define WACOM_PKGLEN_TPC2FG 14
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#define WACOM_PKGLEN_BBTOUCH 20
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#define WACOM_PKGLEN_BBTOUCH3 64
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#define WACOM_PKGLEN_BBPEN 10
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#define WACOM_PKGLEN_WIRELESS 32
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#define WACOM_PKGLEN_PENABLED 8
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#define WACOM_PKGLEN_BPAD_TOUCH 32
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#define WACOM_PKGLEN_BPAD_TOUCH_USB 64
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/* wacom data size per MT contact */
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#define WACOM_BYTES_PER_MT_PACKET 11
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#define WACOM_BYTES_PER_24HDT_PACKET 14
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#define WACOM_BYTES_PER_QHDTHID_PACKET 6
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/* device IDs */
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#define STYLUS_DEVICE_ID 0x02
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#define TOUCH_DEVICE_ID 0x03
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#define CURSOR_DEVICE_ID 0x06
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#define ERASER_DEVICE_ID 0x0A
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#define PAD_DEVICE_ID 0x0F
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/* wacom data packet report IDs */
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#define WACOM_REPORT_PENABLED 2
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#define WACOM_REPORT_PENABLED_BT 3
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#define WACOM_REPORT_INTUOS_ID1 5
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#define WACOM_REPORT_INTUOS_ID2 6
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#define WACOM_REPORT_INTUOSPAD 12
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#define WACOM_REPORT_INTUOS5PAD 3
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#define WACOM_REPORT_DTUSPAD 21
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#define WACOM_REPORT_TPC1FG 6
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#define WACOM_REPORT_TPC2FG 13
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#define WACOM_REPORT_TPCMT 13
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#define WACOM_REPORT_TPCMT2 3
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#define WACOM_REPORT_TPCHID 15
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#define WACOM_REPORT_CINTIQ 16
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#define WACOM_REPORT_CINTIQPAD 17
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#define WACOM_REPORT_TPCST 16
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#define WACOM_REPORT_DTUS 17
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#define WACOM_REPORT_TPC1FGE 18
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#define WACOM_REPORT_24HDT 1
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#define WACOM_REPORT_WL 128
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#define WACOM_REPORT_USB 192
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#define WACOM_REPORT_BPAD_PEN 3
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#define WACOM_REPORT_BPAD_TOUCH 16
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#define WACOM_REPORT_DEVICE_LIST 16
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#define WACOM_REPORT_INTUOS_PEN 16
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#define WACOM_REPORT_REMOTE 17
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#define WACOM_REPORT_INTUOSHT2_ID 8
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/* wacom command report ids */
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#define WAC_CMD_WL_LED_CONTROL 0x03
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#define WAC_CMD_LED_CONTROL 0x20
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#define WAC_CMD_ICON_START 0x21
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#define WAC_CMD_ICON_XFER 0x23
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#define WAC_CMD_ICON_BT_XFER 0x26
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#define WAC_CMD_DELETE_PAIRING 0x20
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#define WAC_CMD_LED_CONTROL_GENERIC 0x32
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#define WAC_CMD_UNPAIR_ALL 0xFF
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#define WAC_CMD_WL_INTUOSP2 0x82
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/* device quirks */
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#define WACOM_QUIRK_BBTOUCH_LOWRES 0x0001
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#define WACOM_QUIRK_SENSE 0x0002
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#define WACOM_QUIRK_AESPEN 0x0004
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#define WACOM_QUIRK_BATTERY 0x0008
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#define WACOM_QUIRK_TOOLSERIAL 0x0010
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/* device types */
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#define WACOM_DEVICETYPE_NONE 0x0000
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#define WACOM_DEVICETYPE_PEN 0x0001
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#define WACOM_DEVICETYPE_TOUCH 0x0002
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#define WACOM_DEVICETYPE_PAD 0x0004
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#define WACOM_DEVICETYPE_WL_MONITOR 0x0008
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#define WACOM_DEVICETYPE_DIRECT 0x0010
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#define WACOM_POWER_SUPPLY_STATUS_AUTO -1
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#define WACOM_HID_UP_WACOMDIGITIZER 0xff0d0000
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#define WACOM_HID_SP_PAD 0x00040000
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#define WACOM_HID_SP_BUTTON 0x00090000
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#define WACOM_HID_SP_DIGITIZER 0x000d0000
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#define WACOM_HID_SP_DIGITIZERINFO 0x00100000
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#define WACOM_HID_WD_DIGITIZER (WACOM_HID_UP_WACOMDIGITIZER | 0x01)
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#define WACOM_HID_WD_PEN (WACOM_HID_UP_WACOMDIGITIZER | 0x02)
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#define WACOM_HID_WD_SENSE (WACOM_HID_UP_WACOMDIGITIZER | 0x36)
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#define WACOM_HID_WD_DIGITIZERFNKEYS (WACOM_HID_UP_WACOMDIGITIZER | 0x39)
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#define WACOM_HID_WD_SERIALNUMBER (WACOM_HID_UP_WACOMDIGITIZER | 0x5b)
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#define WACOM_HID_WD_SERIALHI (WACOM_HID_UP_WACOMDIGITIZER | 0x5c)
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#define WACOM_HID_WD_TOOLTYPE (WACOM_HID_UP_WACOMDIGITIZER | 0x77)
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#define WACOM_HID_WD_DISTANCE (WACOM_HID_UP_WACOMDIGITIZER | 0x0132)
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#define WACOM_HID_WD_TOUCHSTRIP (WACOM_HID_UP_WACOMDIGITIZER | 0x0136)
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#define WACOM_HID_WD_TOUCHSTRIP2 (WACOM_HID_UP_WACOMDIGITIZER | 0x0137)
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#define WACOM_HID_WD_TOUCHRING (WACOM_HID_UP_WACOMDIGITIZER | 0x0138)
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#define WACOM_HID_WD_TOUCHRINGSTATUS (WACOM_HID_UP_WACOMDIGITIZER | 0x0139)
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#define WACOM_HID_WD_REPORT_VALID (WACOM_HID_UP_WACOMDIGITIZER | 0x01d0)
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#define WACOM_HID_WD_ACCELEROMETER_X (WACOM_HID_UP_WACOMDIGITIZER | 0x0401)
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#define WACOM_HID_WD_ACCELEROMETER_Y (WACOM_HID_UP_WACOMDIGITIZER | 0x0402)
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#define WACOM_HID_WD_ACCELEROMETER_Z (WACOM_HID_UP_WACOMDIGITIZER | 0x0403)
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#define WACOM_HID_WD_BATTERY_CHARGING (WACOM_HID_UP_WACOMDIGITIZER | 0x0404)
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#define WACOM_HID_WD_TOUCHONOFF (WACOM_HID_UP_WACOMDIGITIZER | 0x0454)
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#define WACOM_HID_WD_BATTERY_LEVEL (WACOM_HID_UP_WACOMDIGITIZER | 0x043b)
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#define WACOM_HID_WD_EXPRESSKEY00 (WACOM_HID_UP_WACOMDIGITIZER | 0x0910)
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#define WACOM_HID_WD_EXPRESSKEYCAP00 (WACOM_HID_UP_WACOMDIGITIZER | 0x0940)
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#define WACOM_HID_WD_MODE_CHANGE (WACOM_HID_UP_WACOMDIGITIZER | 0x0980)
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#define WACOM_HID_WD_MUTE_DEVICE (WACOM_HID_UP_WACOMDIGITIZER | 0x0981)
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#define WACOM_HID_WD_CONTROLPANEL (WACOM_HID_UP_WACOMDIGITIZER | 0x0982)
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#define WACOM_HID_WD_ONSCREEN_KEYBOARD (WACOM_HID_UP_WACOMDIGITIZER | 0x0983)
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#define WACOM_HID_WD_BUTTONCONFIG (WACOM_HID_UP_WACOMDIGITIZER | 0x0986)
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#define WACOM_HID_WD_BUTTONHOME (WACOM_HID_UP_WACOMDIGITIZER | 0x0990)
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#define WACOM_HID_WD_BUTTONUP (WACOM_HID_UP_WACOMDIGITIZER | 0x0991)
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#define WACOM_HID_WD_BUTTONDOWN (WACOM_HID_UP_WACOMDIGITIZER | 0x0992)
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#define WACOM_HID_WD_BUTTONLEFT (WACOM_HID_UP_WACOMDIGITIZER | 0x0993)
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#define WACOM_HID_WD_BUTTONRIGHT (WACOM_HID_UP_WACOMDIGITIZER | 0x0994)
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#define WACOM_HID_WD_BUTTONCENTER (WACOM_HID_UP_WACOMDIGITIZER | 0x0995)
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#define WACOM_HID_WD_FINGERWHEEL (WACOM_HID_UP_WACOMDIGITIZER | 0x0d03)
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#define WACOM_HID_WD_OFFSETLEFT (WACOM_HID_UP_WACOMDIGITIZER | 0x0d30)
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#define WACOM_HID_WD_OFFSETTOP (WACOM_HID_UP_WACOMDIGITIZER | 0x0d31)
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#define WACOM_HID_WD_OFFSETRIGHT (WACOM_HID_UP_WACOMDIGITIZER | 0x0d32)
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#define WACOM_HID_WD_OFFSETBOTTOM (WACOM_HID_UP_WACOMDIGITIZER | 0x0d33)
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#define WACOM_HID_WD_DATAMODE (WACOM_HID_UP_WACOMDIGITIZER | 0x1002)
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#define WACOM_HID_WD_DIGITIZERINFO (WACOM_HID_UP_WACOMDIGITIZER | 0x1013)
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#define WACOM_HID_WD_TOUCH_RING_SETTING (WACOM_HID_UP_WACOMDIGITIZER | 0x1032)
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#define WACOM_HID_UP_G9 0xff090000
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#define WACOM_HID_G9_PEN (WACOM_HID_UP_G9 | 0x02)
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#define WACOM_HID_G9_TOUCHSCREEN (WACOM_HID_UP_G9 | 0x11)
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#define WACOM_HID_UP_G11 0xff110000
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#define WACOM_HID_G11_PEN (WACOM_HID_UP_G11 | 0x02)
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#define WACOM_HID_G11_TOUCHSCREEN (WACOM_HID_UP_G11 | 0x11)
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#define WACOM_HID_UP_WACOMTOUCH 0xff000000
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#define WACOM_HID_WT_TOUCHSCREEN (WACOM_HID_UP_WACOMTOUCH | 0x04)
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#define WACOM_HID_WT_TOUCHPAD (WACOM_HID_UP_WACOMTOUCH | 0x05)
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#define WACOM_HID_WT_CONTACTMAX (WACOM_HID_UP_WACOMTOUCH | 0x55)
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#define WACOM_HID_WT_SERIALNUMBER (WACOM_HID_UP_WACOMTOUCH | 0x5b)
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#define WACOM_HID_WT_X (WACOM_HID_UP_WACOMTOUCH | 0x130)
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#define WACOM_HID_WT_Y (WACOM_HID_UP_WACOMTOUCH | 0x131)
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#define WACOM_HID_WT_REPORT_VALID (WACOM_HID_UP_WACOMTOUCH | 0x1d0)
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#define WACOM_BATTERY_USAGE(f) (((f)->hid == HID_DG_BATTERYSTRENGTH) || \
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((f)->hid == WACOM_HID_WD_BATTERY_CHARGING) || \
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((f)->hid == WACOM_HID_WD_BATTERY_LEVEL))
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#define WACOM_PAD_FIELD(f) (((f)->physical == HID_DG_TABLETFUNCTIONKEY) || \
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((f)->physical == WACOM_HID_WD_DIGITIZERFNKEYS) || \
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((f)->physical == WACOM_HID_WD_DIGITIZERINFO))
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#define WACOM_PEN_FIELD(f) (((f)->logical == HID_DG_STYLUS) || \
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((f)->physical == HID_DG_STYLUS) || \
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((f)->physical == HID_DG_PEN) || \
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((f)->application == HID_DG_PEN) || \
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((f)->application == HID_DG_DIGITIZER) || \
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((f)->application == WACOM_HID_WD_PEN) || \
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((f)->application == WACOM_HID_WD_DIGITIZER) || \
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((f)->application == WACOM_HID_G9_PEN) || \
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((f)->application == WACOM_HID_G11_PEN))
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#define WACOM_FINGER_FIELD(f) (((f)->logical == HID_DG_FINGER) || \
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((f)->physical == HID_DG_FINGER) || \
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((f)->application == HID_DG_TOUCHSCREEN) || \
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((f)->application == WACOM_HID_G9_TOUCHSCREEN) || \
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((f)->application == WACOM_HID_G11_TOUCHSCREEN) || \
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((f)->application == WACOM_HID_WT_TOUCHPAD) || \
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((f)->application == HID_DG_TOUCHPAD))
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#define WACOM_DIRECT_DEVICE(f) (((f)->application == HID_DG_TOUCHSCREEN) || \
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((f)->application == WACOM_HID_WT_TOUCHSCREEN) || \
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((f)->application == HID_DG_PEN) || \
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((f)->application == WACOM_HID_WD_PEN))
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enum {
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PENPARTNER = 0,
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GRAPHIRE,
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GRAPHIRE_BT,
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WACOM_G4,
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PTU,
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PL,
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DTU,
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DTUS,
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DTUSX,
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INTUOS,
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INTUOS3S,
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INTUOS3,
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INTUOS3L,
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INTUOS4S,
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INTUOS4,
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INTUOS4WL,
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INTUOS4L,
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INTUOS5S,
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INTUOS5,
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INTUOS5L,
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INTUOSPS,
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INTUOSPM,
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INTUOSPL,
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INTUOSP2_BT,
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INTUOSP2S_BT,
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INTUOSHT3_BT,
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WACOM_21UX2,
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WACOM_22HD,
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DTK,
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WACOM_24HD,
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WACOM_27QHD,
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CINTIQ_HYBRID,
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CINTIQ_COMPANION_2,
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CINTIQ,
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WACOM_BEE,
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WACOM_13HD,
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WACOM_MO,
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BAMBOO_PEN,
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INTUOSHT,
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INTUOSHT2,
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BAMBOO_TOUCH,
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BAMBOO_PT,
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WACOM_24HDT,
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WACOM_27QHDT,
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BAMBOO_PAD,
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WIRELESS,
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REMOTE,
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TABLETPC, /* add new TPC below */
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TABLETPCE,
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TABLETPC2FG,
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MTSCREEN,
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MTTPC,
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MTTPC_B,
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HID_GENERIC,
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MAX_TYPE
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};
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struct wacom_features {
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const char *name;
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int x_max;
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int y_max;
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int pressure_max;
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int distance_max;
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int type;
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int x_resolution;
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int y_resolution;
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int numbered_buttons;
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int offset_left;
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int offset_right;
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int offset_top;
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int offset_bottom;
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int device_type;
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int x_phy;
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int y_phy;
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unsigned unit;
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int unitExpo;
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int x_fuzz;
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int y_fuzz;
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int pressure_fuzz;
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int distance_fuzz;
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int tilt_fuzz;
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unsigned quirks;
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unsigned touch_max;
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int oVid;
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int oPid;
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int pktlen;
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bool check_for_hid_type;
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int hid_type;
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};
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struct wacom_shared {
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bool stylus_in_proximity;
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bool touch_down;
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/* for wireless device to access USB interfaces */
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unsigned touch_max;
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int type;
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struct input_dev *touch_input;
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struct hid_device *pen;
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struct hid_device *touch;
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bool has_mute_touch_switch;
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bool is_touch_on;
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};
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struct hid_data {
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__s16 inputmode; /* InputMode HID feature, -1 if non-existent */
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__s16 inputmode_index; /* InputMode HID feature index in the report */
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bool sense_state;
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bool inrange_state;
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bool invert_state;
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bool tipswitch;
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bool barrelswitch;
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bool barrelswitch2;
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bool serialhi;
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bool confidence;
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int x;
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int y;
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int pressure;
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int width;
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int height;
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int id;
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int cc_report;
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int cc_index;
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int cc_value_index;
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int last_slot_field;
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int num_expected;
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int num_received;
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int bat_status;
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int battery_capacity;
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int bat_charging;
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int bat_connected;
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int ps_connected;
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bool pad_input_event_flag;
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};
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struct wacom_remote_data {
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struct {
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u32 serial;
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bool connected;
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} remote[WACOM_MAX_REMOTES];
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};
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struct wacom_wac {
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char name[WACOM_NAME_MAX];
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char pen_name[WACOM_NAME_MAX];
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char touch_name[WACOM_NAME_MAX];
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char pad_name[WACOM_NAME_MAX];
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unsigned char data[WACOM_PKGLEN_MAX];
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int tool[2];
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int id[2];
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__u64 serial[2];
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bool probe_complete;
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bool reporting_data;
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struct wacom_features features;
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struct wacom_shared *shared;
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struct input_dev *pen_input;
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struct input_dev *touch_input;
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struct input_dev *pad_input;
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struct kfifo_rec_ptr_2 *pen_fifo;
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int pid;
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int num_contacts_left;
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u8 bt_features;
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u8 bt_high_speed;
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int mode_report;
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int mode_value;
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struct hid_data hid_data;
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bool has_mute_touch_switch;
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bool is_soft_touch_switch;
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bool has_mode_change;
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bool is_direct_mode;
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bool is_invalid_bt_frame;
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};
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#endif
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