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beca998122
Some tablets such as those in the XP-PEN PRO series use "dials" which are actually scrollwheels and emit EV_REL events. These should not be emulated as rings (which are absolute) so we must expose them as a new tablet event. Adds LIBINPUT_EVENT_TABLET_PAD_DIAL that work largely identical as our high-resolution wheel events (i.e. the values are in multiples or fractions of of 120). Currently supports two dials. This is a lot of copy/paste from the ring axes because the interface is virtually identical. The main difference is that dials give us a v120 value in the same manner as our scroll axes. Notes: - REL_DIAL is mutually exclusive with REL_WHEEL, we assume the kernel doesn't (at this point) give us devices with both. If this changes for devices with three dials (wheel + hwheel + dial) we need to add code for that. - REL_DIAL does not have a high-resolution axis and we assume that any device with REL_WHEEL_HI_RES will also have REL_HWHEEL_HI_RES (if the second wheel exists). - With dials being REL_DIAL or REL_WHEEL there is no possibility of detecting a finger release (the kernel does not route EV_RELs with a value of zero). Unless this is implemented via a side-channel - and it doesn't look like any hardware that supports dials does that - we cannot forward any information here. So unlike absolute rings we cannot provide a source information here. Closes #600 Co-authored-by: Peter Hutterer <peter.hutterer@who-t.net> Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/967>
78 lines
2.1 KiB
C
78 lines
2.1 KiB
C
/*
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* Copyright © 2024 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include "config.h"
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#include "litest.h"
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#include "litest-int.h"
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static struct input_event down[] = {
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{ .type = -1, .code = -1 },
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};
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static struct input_event move[] = {
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{ .type = -1, .code = -1 },
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};
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static struct litest_device_interface interface = {
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.touch_down_events = down,
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.touch_move_events = move,
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};
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static struct input_absinfo absinfo[] = {
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{ ABS_X, 0, 1, 0, 0, 0 },
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{ ABS_Y, 0, 1, 0, 0, 0 },
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{ ABS_MISC, 0, 0, 0, 0, 0 },
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{ .value = -1 },
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};
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static struct input_id input_id = {
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.bustype = 0x3,
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.vendor = 0x123,
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.product = 0x456,
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};
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static int events[] = {
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EV_KEY, BTN_0,
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EV_KEY, BTN_1,
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EV_KEY, BTN_2,
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EV_KEY, BTN_3,
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EV_KEY, BTN_STYLUS,
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EV_REL, REL_DIAL,
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-1, -1,
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};
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TEST_DEVICE("tablet-rel-dial-pad",
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.type = LITEST_TABLET_REL_DIAL_PAD,
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.features = LITEST_TABLET_PAD | LITEST_DIAL,
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.interface = &interface,
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.name = "Generic Rel DialPad",
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.id = &input_id,
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.events = events,
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.absinfo = absinfo,
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.udev_properties = {
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{ "ID_INPUT_TABLET_PAD", "1" },
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{ NULL },
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},
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)
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