quirks: disable pressure on the Lenovo Yoga 9i touchpad

This touchpad is a true pressurepad and the pressure axis gives us physical
pressure down. Using it as contact size gives flaky touch detection, so let's
just disable the axis until we do something with that value.

Fixes #562

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
(cherry picked from commit 53595cb23262f61005c4b24a19936dabac12159e)

6 files changed, 139 insertions, 0 deletions

diff --git a/meson.build b/meson.build
index a02bbe31..37a2feb3 100644
--- a/meson.build
+++ b/meson.build
@@ -803,6 +803,7 @@ if get_option('tests')
 		'test/litest-device-synaptics-x220.c',
 		'test/litest-device-synaptics-hover.c',
 		'test/litest-device-synaptics-i2c.c',
+		'test/litest-device-synaptics-pressurepad.c',
 		'test/litest-device-synaptics-rmi4.c',
 		'test/litest-device-synaptics-st.c',
 		'test/litest-device-synaptics-t440.c',
diff --git a/quirks/50-system-lenovo.quirks b/quirks/50-system-lenovo.quirks
index 19a3b9e5..84825e44 100644
--- a/quirks/50-system-lenovo.quirks
+++ b/quirks/50-system-lenovo.quirks
@@ -130,6 +130,14 @@ MatchName=*TPPS/2 IBM TrackPoint
 MatchDMIModalias=dmi:*svnLENOVO:*:pvrThinkPadX1Yoga1st:*
 AttrTrackpointMultiplier=1.25
 
+# A true pressurepad so let's not use pressure for contact size
+# https://gitlab.freedesktop.org/libinput/libinput/-/issues/562
+[Lenovo Yoga 9i Pressurepad]
+MatchBus=i2c
+MatchVendor=0x06CB
+MatchProduct=0xCE37
+AttrEventCodeDisable=ABS_MT_PRESSURE;ABS_PRESSURE;
+
 # Lenovo Carbon X1 6th gen (RMI4 only, PS/2 is broken on this device,
 # sends bogus ABS_MT_TOOL_TYPE events for MT_TOOL_PALM
 [Lenovo Carbon X1 6th gen]
diff --git a/test/litest-device-synaptics-pressurepad.c b/test/litest-device-synaptics-pressurepad.c
new file mode 100644
index 00000000..e0e5562d
--- /dev/null
+++ b/test/litest-device-synaptics-pressurepad.c
@@ -0,0 +1,120 @@
+/*
+ * Copyright © 2021 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "config.h"
+
+#include "litest.h"
+#include "litest-int.h"
+
+/* Device from https://gitlab.freedesktop.org/libinput/libinput/-/issues/562 */
+
+static struct input_event down[] = {
+	{ .type = EV_ABS, .code = ABS_X, .value = LITEST_AUTO_ASSIGN  },
+	{ .type = EV_ABS, .code = ABS_Y, .value = LITEST_AUTO_ASSIGN },
+	{ .type = EV_ABS, .code = ABS_PRESSURE, .value = LITEST_AUTO_ASSIGN },
+	{ .type = EV_ABS, .code = ABS_MT_SLOT, .value = LITEST_AUTO_ASSIGN },
+	{ .type = EV_ABS, .code = ABS_MT_TRACKING_ID, .value = LITEST_AUTO_ASSIGN },
+	{ .type = EV_ABS, .code = ABS_MT_POSITION_X, .value = LITEST_AUTO_ASSIGN },
+	{ .type = EV_ABS, .code = ABS_MT_POSITION_Y, .value = LITEST_AUTO_ASSIGN },
+	{ .type = EV_SYN, .code = SYN_REPORT, .value = 0 },
+	{ .type = -1, .code = -1 },
+};
+
+static struct input_event move[] = {
+	{ .type = EV_ABS, .code = ABS_MT_SLOT, .value = LITEST_AUTO_ASSIGN },
+	{ .type = EV_ABS, .code = ABS_X, .value = LITEST_AUTO_ASSIGN  },
+	{ .type = EV_ABS, .code = ABS_Y, .value = LITEST_AUTO_ASSIGN },
+	{ .type = EV_ABS, .code = ABS_PRESSURE, .value = LITEST_AUTO_ASSIGN },
+	{ .type = EV_ABS, .code = ABS_MT_POSITION_X, .value = LITEST_AUTO_ASSIGN },
+	{ .type = EV_ABS, .code = ABS_MT_POSITION_Y, .value = LITEST_AUTO_ASSIGN },
+	{ .type = EV_SYN, .code = SYN_REPORT, .value = 0 },
+	{ .type = -1, .code = -1 },
+};
+
+
+static int
+get_axis_default(struct litest_device *d, unsigned int evcode, int32_t *value)
+{
+	switch (evcode) {
+	/* Always set pressure to zero. The real device sends pressure
+	 * values > 30 when the device is clicked but until this is a)
+	 * handled by libinput and b) integrated into this test suite
+	 * a zero value does the job.
+	 */
+	case ABS_PRESSURE:
+	case ABS_MT_PRESSURE:
+		*value = 0;
+		return 0;
+	}
+	return 1;
+}
+
+static struct litest_device_interface interface = {
+	.touch_down_events = down,
+	.touch_move_events = move,
+
+	.get_axis_default = get_axis_default,
+};
+
+static struct input_id input_id = {
+	.bustype = 0x18,
+	.vendor = 0x6cb,
+	.product = 0xce37,
+};
+
+static int events[] = {
+	EV_KEY, BTN_LEFT,
+	EV_KEY, BTN_TOOL_FINGER,
+	EV_KEY, BTN_TOUCH,
+	EV_KEY, BTN_TOOL_DOUBLETAP,
+	EV_KEY, BTN_TOOL_TRIPLETAP,
+	EV_KEY, BTN_TOOL_QUADTAP,
+	EV_KEY, BTN_TOOL_QUINTTAP,
+	INPUT_PROP_MAX, INPUT_PROP_POINTER,
+	INPUT_PROP_MAX, INPUT_PROP_BUTTONPAD,
+	-1, -1,
+};
+
+static struct input_absinfo absinfo[] = {
+	{ ABS_X, 0, 1224, 0, 0, 12 },
+	{ ABS_Y, 0, 756, 0, 0, 12 },
+	{ ABS_PRESSURE, 0, 255, 0, 0, 0 },
+	{ ABS_MT_SLOT, 0, 4, 0, 0, 0 },
+	{ ABS_MT_POSITION_X, 0, 1224, 0, 0, 12 },
+	{ ABS_MT_POSITION_Y, 0, 756, 0, 0, 12 },
+	{ ABS_MT_TRACKING_ID, 0, 65535, 0, 0, 0 },
+	{ ABS_MT_PRESSURE, 0, 255, 0, 0, 0 },
+	{ ABS_MT_TOOL_TYPE, 0, 2, 0, 0, 0 },
+	{ .value = -1 }
+};
+
+TEST_DEVICE("synaptics-pressurepad",
+	.type = LITEST_SYNAPTICS_PRESSUREPAD,
+	.features = LITEST_TOUCHPAD | LITEST_CLICKPAD | LITEST_BUTTON,
+	.interface = &interface,
+
+	.name = "SYNA2B31:00 06CB:CE37 Touchpad",
+	.id = &input_id,
+	.events = events,
+	.absinfo = absinfo,
+)
diff --git a/test/litest.h b/test/litest.h
index 1f4e609d..08ce20ac 100644
--- a/test/litest.h
+++ b/test/litest.h
@@ -306,6 +306,7 @@ enum litest_device_type {
 	LITEST_TABLET_MODE_UNRELIABLE,
 	LITEST_KEYBOARD_LOGITECH_MEDIA_KEYBOARD_ELITE,
 	LITEST_SONY_VAIO_KEYS,
+	LITEST_SYNAPTICS_PRESSUREPAD,
 };
 
 #define LITEST_DEVICELESS	-2
diff --git a/test/test-touchpad-tap.c b/test/test-touchpad-tap.c
index 74e03ccb..ff03df93 100644
--- a/test/test-touchpad-tap.c
+++ b/test/test-touchpad-tap.c
@@ -2765,6 +2765,9 @@ touchpad_has_palm_pressure(struct litest_device *dev)
 {
 	struct libevdev *evdev = dev->evdev;
 
+	if (dev->which == LITEST_SYNAPTICS_PRESSUREPAD)
+		return false;
+
 	if (libevdev_has_event_code(evdev, EV_ABS, ABS_MT_PRESSURE))
 		return true;
 
diff --git a/test/test-touchpad.c b/test/test-touchpad.c
index 96cb8db5..c7e3cbd1 100644
--- a/test/test-touchpad.c
+++ b/test/test-touchpad.c
@@ -1795,6 +1795,9 @@ touchpad_has_palm_pressure(struct litest_device *dev)
 {
 	struct libevdev *evdev = dev->evdev;
 
+	if (dev->which == LITEST_SYNAPTICS_PRESSUREPAD)
+		return false;
+
 	if (libevdev_has_event_code(evdev, EV_ABS, ABS_MT_PRESSURE))
 		return true;
 
@@ -5913,6 +5916,9 @@ touchpad_has_pressure(struct litest_device *dev)
 {
 	struct libevdev *evdev = dev->evdev;
 
+	if (dev->which == LITEST_SYNAPTICS_PRESSUREPAD)
+		return false;
+
 	if (libevdev_has_event_code(evdev, EV_ABS, ABS_MT_PRESSURE))
 		return true;