Merge branch 'wip/custom-pointer-accel-revert'

19 files changed, 57 insertions, 795 deletions

diff --git a/doc/pointer-acceleration.dox b/doc/pointer-acceleration.dox
index 5e300998..652c72c6 100644
--- a/doc/pointer-acceleration.dox
+++ b/doc/pointer-acceleration.dox
@@ -153,70 +153,4 @@ Pointer acceleration for relative motion on tablet devices is a flat
 acceleration, with the speed setting slowing down or speeding up the pointer
 motion by a constant factor. Tablets do not allow for switchable profiles.
 
-@section ptraccel-device-speed Speed-dependent acceleration curve
-
-When the @ref LIBINPUT_CONFIG_ACCEL_PROFILE_DEVICE_SPEED_CURVE profile is
-selected, it is the caller's responsibility to load an acceleration profile
-into the device that maps the device's movement into an accelerated
-movement.
-
-This profile maps input speed in **device units** to an acceleration
-factor. libinput calculates the device's speed based on the deltas and their
-timestamps and applies the factor provided by the acceleration profile to
-the current delta.
-
-@note This profile uses data in device units, an acceleration curve loaded
-by the caller only applies to that device and will not behave the same way
-for other devices.
-
-@dot
-digraph
-{
-	rankdir="LR";
-	node [shape="box";]
-	subgraph cluster0 {
-		history[shape=record,label="<f0> delta(t-1)|<f1> delta(t-2)|<f2> delta(t-3)| <f3> ..."];
-		label = "motion history";
-	}
-	delta[label="delta"];
-	velocity[shape="ellipse"];
-	factor[shape="ellipse"];
-	accel[label="accelerated delta"];
-	curve[label="acceleration curve"];
-
-	delta->velocity;
-	delta->factor;
-	factor->accel;
-	history->velocity;
-
-	velocity->curve;
-	curve->factor;
-}
-@enddot
-
-For example, assume the current delta is (2, 4) which maps to a current
-movement velocity of 10 units per microsecond. libinput looks up the custom
-acceleration function for 10 which may return 3. The accelerated delta thus
-becomes (6, 12).
-
-The profile itself is a curve defined by a number of points on the curve
-mapping speed to an acceleration factor. Between each two curve points,
-libinput provides linear interpolation, most acceleration profiles will thus
-only need to provide a handful of curve points. The following illustration
-shows the acceleration curve defined for the points (10, 0.25), (20, 0.4)
-and (35, 3.0).
-
-@image html ptraccel-curve-example.svg "Interpolation of the acceleration curve for three defined points"
-
-As seen in the picture above: given an acceleration factor f(x) and a curve
-defined by the caller for the points
-a, b, and c where a < b < c:
-- if x <= a, f(x) == f(a)
-- if x >= c, f(x) == f(c)
-- if a < x < b: f(x) == the the linear interpolation value between f(a) and f(b)
-- if b < x < c: f(x) == the the linear interpolation value between f(b) and f(c)
-
-The behavior of a a curve is implementation-defined until the caller sets
-curve points.
-
 */
diff --git a/doc/svg/ptraccel-curve-example.svg b/doc/svg/ptraccel-curve-example.svg
deleted file mode 100644
index b098e142..00000000
--- a/doc/svg/ptraccel-curve-example.svg
+++ /dev/null
@@ -1,290 +0,0 @@
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- width="600" height="480"
- viewBox="0 0 600 480"
- xmlns="http://www.w3.org/2000/svg"
- xmlns:xlink="http://www.w3.org/1999/xlink"
->
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-		<text><tspan font-family="Arial" >acceleration factor</tspan></text>
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diff --git a/meson.build b/meson.build
index 9d2cb444..5f3d35bc 100644
--- a/meson.build
+++ b/meson.build
@@ -166,7 +166,6 @@ dep_libinput_util = declare_dependency(link_with : libinput_util)
 ############ libfilter.a ############
 src_libfilter = [
 		'src/filter.c',
-		'src/filter-custom.c',
 		'src/filter-flat.c',
 		'src/filter-low-dpi.c',
 		'src/filter-mouse.c',
diff --git a/src/evdev-mt-touchpad.c b/src/evdev-mt-touchpad.c
index 69a4892b..02b75531 100644
--- a/src/evdev-mt-touchpad.c
+++ b/src/evdev-mt-touchpad.c
@@ -2612,8 +2612,26 @@ tp_init_slots(struct tp_dispatch *tp,
 static uint32_t
 tp_accel_config_get_profiles(struct libinput_device *libinput_device)
 {
-	return LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE |
-	       LIBINPUT_CONFIG_ACCEL_PROFILE_DEVICE_SPEED_CURVE;
+	return LIBINPUT_CONFIG_ACCEL_PROFILE_NONE;
+}
+
+static enum libinput_config_status
+tp_accel_config_set_profile(struct libinput_device *libinput_device,
+			    enum libinput_config_accel_profile profile)
+{
+	return LIBINPUT_CONFIG_STATUS_UNSUPPORTED;
+}
+
+static enum libinput_config_accel_profile
+tp_accel_config_get_profile(struct libinput_device *libinput_device)
+{
+	return LIBINPUT_CONFIG_ACCEL_PROFILE_NONE;
+}
+
+static enum libinput_config_accel_profile
+tp_accel_config_get_default_profile(struct libinput_device *libinput_device)
+{
+	return LIBINPUT_CONFIG_ACCEL_PROFILE_NONE;
 }
 
 static bool
@@ -2650,9 +2668,12 @@ tp_init_accel(struct tp_dispatch *tp)
 
 	evdev_device_init_pointer_acceleration(tp->device, filter);
 
-	/* override the profile hooks for get_profile because we don't
-	 * have the flat profile on touchpads */
+	/* we override the profile hooks for accel configuration with hooks
+	 * that don't allow selection of profiles */
 	device->pointer.config.get_profiles = tp_accel_config_get_profiles;
+	device->pointer.config.set_profile = tp_accel_config_set_profile;
+	device->pointer.config.get_profile = tp_accel_config_get_profile;
+	device->pointer.config.get_default_profile = tp_accel_config_get_default_profile;
 
 	return true;
 }
diff --git a/src/evdev.c b/src/evdev.c
index c6f76adb..2a7743e4 100644
--- a/src/evdev.c
+++ b/src/evdev.c
@@ -943,9 +943,7 @@ evdev_init_accel(struct evdev_device *device,
 {
 	struct motion_filter *filter;
 
-	if (which == LIBINPUT_CONFIG_ACCEL_PROFILE_DEVICE_SPEED_CURVE)
-		filter = create_pointer_accelerator_filter_custom_device_speed();
-	else if (which == LIBINPUT_CONFIG_ACCEL_PROFILE_FLAT)
+	if (which == LIBINPUT_CONFIG_ACCEL_PROFILE_FLAT)
 		filter = create_pointer_accelerator_filter_flat(device->dpi);
 	else if (device->tags & EVDEV_TAG_TRACKPOINT)
 		filter = create_pointer_accelerator_filter_trackpoint(device->trackpoint_range);
@@ -1004,8 +1002,7 @@ evdev_accel_config_get_profiles(struct libinput_device *libinput_device)
 		return LIBINPUT_CONFIG_ACCEL_PROFILE_NONE;
 
 	return LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE |
-		LIBINPUT_CONFIG_ACCEL_PROFILE_FLAT |
-		LIBINPUT_CONFIG_ACCEL_PROFILE_DEVICE_SPEED_CURVE;
+		LIBINPUT_CONFIG_ACCEL_PROFILE_FLAT;
 }
 
 static enum libinput_config_status
@@ -1054,27 +1051,6 @@ evdev_accel_config_get_default_profile(struct libinput_device *libinput_device)
 	return LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE;
 }
 
-static enum libinput_config_status
-evdev_accel_config_set_curve_point(struct libinput_device *libinput_device,
-				   double a,
-				   double fa)
-{
-	struct evdev_device *device = evdev_device(libinput_device);
-	struct motion_filter *filter = device->pointer.filter;
-
-	if (evdev_accel_config_get_profile(libinput_device) !=
-	    LIBINPUT_CONFIG_ACCEL_PROFILE_DEVICE_SPEED_CURVE)
-		return LIBINPUT_CONFIG_STATUS_INVALID;
-
-	if (a < 0 || a > 50000)
-		return LIBINPUT_CONFIG_STATUS_INVALID;
-
-	if (!filter_set_curve_point(filter, a, fa))
-		return LIBINPUT_CONFIG_STATUS_INVALID;
-
-	return LIBINPUT_CONFIG_STATUS_SUCCESS;
-}
-
 void
 evdev_device_init_pointer_acceleration(struct evdev_device *device,
 				       struct motion_filter *filter)
@@ -1092,7 +1068,6 @@ evdev_device_init_pointer_acceleration(struct evdev_device *device,
 		device->pointer.config.set_profile = evdev_accel_config_set_profile;
 		device->pointer.config.get_profile = evdev_accel_config_get_profile;
 		device->pointer.config.get_default_profile = evdev_accel_config_get_default_profile;
-		device->pointer.config.set_curve_point = evdev_accel_config_set_curve_point;
 		device->base.config.accel = &device->pointer.config;
 
 		default_speed = evdev_accel_config_get_default_speed(&device->base);
diff --git a/src/filter-custom.c b/src/filter-custom.c
deleted file mode 100644
index 7768aa2c..00000000
--- a/src/filter-custom.c
+++ /dev/null
@@ -1,216 +0,0 @@
-/*
- * Copyright © 2018 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 <assert.h>
-#include <float.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <limits.h>
-#include <math.h>
-
-#include "filter.h"
-#include "libinput-util.h"
-#include "filter-private.h"
-
-struct acceleration_curve_point {
-	double x, fx;
-};
-
-struct custom_accelerator {
-	struct motion_filter base;
-	struct acceleration_curve_point points[32];
-	size_t npoints;
-
-	double last_velocity;
-	struct pointer_trackers trackers;
-};
-
-double
-custom_accel_profile(struct motion_filter *filter,
-		     void *data,
-		     double speed_in, /* in device units/µs */
-		     uint64_t time)
-{
-	struct custom_accelerator *f =
-		(struct custom_accelerator*)filter;
-	double fx = 1;
-
-	speed_in *= 1000;
-
-	if (f->npoints == 0)
-		return 1.0;
-
-	if (f->points[0].x >= speed_in)
-		return f->points[0].fx;
-
-	for (size_t i = 0; i < f->npoints - 1; i++) {
-		double a, b, fa, fb;
-		double k, d;
-
-		if (f->points[i + 1].x < speed_in)
-			continue;
-
-		/*
-		   We haves points f(i), f(i+1), defining two points on the
-		   curve. linear function in the form y = kx+d:
-
-		   y = kx + d
-
-		   y1 = kx1 + d -> d = y1 - kx1
-		   y2 = kx2 + d -> d = y2 - kx2
-
-		   y1 - kx1 = y2 - kx2
-		   y1 - y2 = kx1 - kx2
-		   k = y1-y2/(x1 - x2)
-
-		 */
-		a  = f->points[i].x;
-		fa = f->points[i].fx;
-		b  = f->points[i+1].x;
-		fb = f->points[i+1].fx;
-
-		k = (fa - fb)/(a - b);
-		d = fa - k * a;
-
-		fx = k * speed_in + d;
-
-		return fx;
-	}
-
-	return f->points[f->npoints - 1].fx;
-}
-
-static struct normalized_coords
-custom_accelerator_filter(struct motion_filter *filter,
-			  const struct device_float_coords *units,
-			  void *data, uint64_t time)
-{
-	struct custom_accelerator *f =
-		(struct custom_accelerator*)filter;
-	struct normalized_coords norm;
-	double velocity; /* units/us in device-native dpi*/
-	double accel_factor;
-
-	trackers_feed(&f->trackers, units, time);
-	velocity = trackers_velocity(&f->trackers, time);
-	accel_factor = calculate_acceleration_simpsons(filter,
-						       custom_accel_profile,
-						       data,
-						       velocity,
-						       f->last_velocity,
-						       time);
-	f->last_velocity = velocity;
-
-	norm.x = accel_factor * units->x;
-	norm.y = accel_factor * units->y;
-
-	return norm;
-}
-
-static bool
-custom_accelerator_set_speed(struct motion_filter *filter,
-			     double speed_adjustment)
-{
-	assert(speed_adjustment >= -1.0 && speed_adjustment <= 1.0);
-
-	/* noop, this function has no effect in the custom interface */
-
-	return true;
-}
-
-static void
-custom_accelerator_destroy(struct motion_filter *filter)
-{
-	struct custom_accelerator *accel_filter =
-		(struct custom_accelerator*)filter;
-
-	trackers_free(&accel_filter->trackers);
-	free(accel_filter);
-}
-
-static bool
-custom_accelerator_set_curve_point(struct motion_filter *filter,
-				   double a, double fa)
-{
-	struct custom_accelerator *f =
-		(struct custom_accelerator*)filter;
-
-	if (f->npoints == ARRAY_LENGTH(f->points))
-		return false;
-
-	if (a < 0 || a > 50000)
-		return false;
-
-	if (f->npoints == 0) {
-		f->points[0].x = a;
-		f->points[0].fx = fa;
-		f->npoints = 1;
-		return true;
-	} else if (f->points[f->npoints - 1].x < a) {
-		f->points[f->npoints].x = a;
-		f->points[f->npoints].fx = fa;
-		f->npoints++;
-		return true;
-	}
-
-	for (size_t i = 0; i < f->npoints; i++) {
-		if (f->points[i].x == a) {
-			f->points[i].fx = fa;
-			break;
-		} else if (f->points[i].x > a) {
-			f->npoints++;
-			for (size_t j = f->npoints - 1; j > i; j--)
-				f->points[j] = f->points[j-1];
-			f->points[i] = (struct acceleration_curve_point){ a, fa };
-			break;
-		}
-	}
-
-	return true;
-}
-
-struct motion_filter_interface accelerator_interface_custom = {
-	.type = LIBINPUT_CONFIG_ACCEL_PROFILE_DEVICE_SPEED_CURVE,
-	.filter = custom_accelerator_filter,
-	.filter_constant = NULL,
-	.restart = NULL,
-	.destroy = custom_accelerator_destroy,
-	.set_speed = custom_accelerator_set_speed,
-	.set_curve_point = custom_accelerator_set_curve_point,
-};
-
-struct motion_filter *
-create_pointer_accelerator_filter_custom_device_speed(void)
-{
-	struct custom_accelerator *filter;
-
-	filter = zalloc(sizeof *filter);
-	trackers_init(&filter->trackers);
-
-	filter->base.interface = &accelerator_interface_custom;
-
-	return &filter->base;
-}
diff --git a/src/filter-private.h b/src/filter-private.h
index 71415dd9..fa2fea40 100644
--- a/src/filter-private.h
+++ b/src/filter-private.h
@@ -44,8 +44,6 @@ struct motion_filter_interface {
 	void (*destroy)(struct motion_filter *filter);
 	bool (*set_speed)(struct motion_filter *filter,
 			  double speed_adjustment);
-	bool (*set_curve_point)(struct motion_filter *filter,
-				double a, double fa);
 };
 
 struct motion_filter {
diff --git a/src/filter.c b/src/filter.c
index 15cbf44b..fe60c62a 100644
--- a/src/filter.c
+++ b/src/filter.c
@@ -90,15 +90,6 @@ filter_get_type(struct motion_filter *filter)
 	return filter->interface->type;
 }
 
-bool
-filter_set_curve_point(struct motion_filter *filter, double a, double fa)
-{
-	if (!filter->interface->set_curve_point)
-		return false;
-
-	return filter->interface->set_curve_point(filter, a, fa);
-}
-
 void
 trackers_init(struct pointer_trackers *trackers)
 {
diff --git a/src/filter.h b/src/filter.h
index 22d98e09..506ab123 100644
--- a/src/filter.h
+++ b/src/filter.h
@@ -95,9 +95,6 @@ filter_set_speed(struct motion_filter *filter,
 double
 filter_get_speed(struct motion_filter *filter);
 
-bool
-filter_set_curve_point(struct motion_filter *filter, double a, double fa);
-
 enum libinput_config_accel_profile
 filter_get_type(struct motion_filter *filter);
 
@@ -108,9 +105,6 @@ typedef double (*accel_profile_func_t)(struct motion_filter *filter,
 
 /* Pointer acceleration types */
 struct motion_filter *
-create_pointer_accelerator_filter_custom_device_speed(void);
-
-struct motion_filter *
 create_pointer_accelerator_filter_flat(int dpi);
 
 struct motion_filter *
@@ -158,12 +152,6 @@ touchpad_lenovo_x230_accel_profile(struct motion_filter *filter,
 				      double speed_in,
 				      uint64_t time);
 double
-custom_accel_profile(struct motion_filter *filter,
-		     void *data,
-		     double speed_in,
-		     uint64_t time);
-
-double
 trackpoint_accel_profile(struct motion_filter *filter,
 			 void *data,
 			 double delta);
diff --git a/src/libinput-private.h b/src/libinput-private.h
index a6938ba6..d50154ef 100644
--- a/src/libinput-private.h
+++ b/src/libinput-private.h
@@ -213,8 +213,6 @@ struct libinput_device_config_accel {
 						   enum libinput_config_accel_profile);
 	enum libinput_config_accel_profile (*get_profile)(struct libinput_device *device);
 	enum libinput_config_accel_profile (*get_default_profile)(struct libinput_device *device);
-	enum libinput_config_status (*set_curve_point)(struct libinput_device *device,
-						       double a, double fa);
 };
 
 struct libinput_device_config_natural_scroll {
diff --git a/src/libinput.c b/src/libinput.c
index 1309ca18..78b54758 100644
--- a/src/libinput.c
+++ b/src/libinput.c
@@ -3708,19 +3708,6 @@ libinput_device_config_accel_get_default_speed(struct libinput_device *device)
 	return device->config.accel->get_default_speed(device);
 }
 
-LIBINPUT_EXPORT enum libinput_config_status
-libinput_device_config_accel_set_curve_point(
-				struct libinput_device *device,
-				double a, double fa)
-{
-	if (libinput_device_config_accel_get_profile(device) !=
-		    LIBINPUT_CONFIG_ACCEL_PROFILE_DEVICE_SPEED_CURVE) {
-		return LIBINPUT_CONFIG_STATUS_INVALID;
-	}
-
-	return device->config.accel->set_curve_point(device, a, fa);
-}
-
 LIBINPUT_EXPORT uint32_t
 libinput_device_config_accel_get_profiles(struct libinput_device *device)
 {
@@ -3755,7 +3742,6 @@ libinput_device_config_accel_set_profile(struct libinput_device *device,
 	switch (profile) {
 	case LIBINPUT_CONFIG_ACCEL_PROFILE_FLAT:
 	case LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE:
-	case LIBINPUT_CONFIG_ACCEL_PROFILE_DEVICE_SPEED_CURVE:
 		break;
 	default:
 		return LIBINPUT_CONFIG_STATUS_INVALID;
diff --git a/src/libinput.h b/src/libinput.h
index 857dcdfa..828cf6b4 100644
--- a/src/libinput.h
+++ b/src/libinput.h
@@ -4494,12 +4494,6 @@ libinput_device_config_accel_is_available(struct libinput_device *device);
  * range. libinput picks the semantically closest acceleration step if the
  * requested value does not match a discrete setting.
  *
- * If the current acceleration profile is @ref
- * LIBINPUT_CONFIG_ACCEL_PROFILE_DEVICE_SPEED_CURVE, the behavior of the
- * device will not change but future calls to
- * libinput_device_config_accel_get_speed() will reflect the updated speed
- * setting.
- *
  * @param device The device to configure
  * @param speed The normalized speed, in a range of [-1, 1]
  *
@@ -4550,44 +4544,6 @@ libinput_device_config_accel_get_default_speed(struct libinput_device *device);
 
 /**
  * @ingroup config
- *
- * Sets a curve point on the custom acceleration function for this device.
- * This function must be called after setting the type of the acceleration
- * to @ref LIBINPUT_CONFIG_ACCEL_PROFILE_DEVICE_SPEED_CURVE and sets
- * exactly one point on the device's acceleration curve.
- *
- * This function must be called multiple times to define a full acceleration
- * curve. libinput uses linear interpolation between each defined curve
- * point to calculate the appropriate factor. Any speed below or above the
- * lowest or highest point defined is capped to the factor at the lowest or
- * highest point, respectively. See @ref ptraccel-device-speed for a
- * detailed explanation on this behavior.
- *
- * The behavior of the acceleration function depends on the type of the
- * profile:
- * - @ref LIBINPUT_CONFIG_ACCEL_PROFILE_DEVICE_SPEED_CURVE : the input data
- *   a is velocity in device units per millisecond, f(a) is a unitless
- *   factor. This factor is applied to the incoming delta so that a delta
- *   (x, y) is  accelerated to the delta (f(a) * x, f(a) *y). The velocity
- *   is calculated by libinput based on the current and previous deltas and
- *   their timestamps. See @ref ptraccel-device-speed for details.
- *
- * @note libinput has a maximum limit for how many curve points may be set
- * and will quietly drop curve points exceeding this limit. This limit is
- * not expected to be hit by any reasonable caller.
- *
- * Submitting a curve point with the same value as a previous curve point
- * overwrites that value. There is no facility to remove curve points,
- * switch the device to a different profile and back again to reset.
- *
- * @return 0 on success or nonzero otherwise
- */
-enum libinput_config_status
-libinput_device_config_accel_set_curve_point(struct libinput_device *device,
-					     double a, double fa);
-
-/**
- * @ingroup config
  */
 enum libinput_config_accel_profile {
 	/**
@@ -4609,11 +4565,6 @@ enum libinput_config_accel_profile {
 	 * on the input speed. This is the default profile for most devices.
 	 */
 	LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE = (1 << 1),
-	/**
-	 * A custom user-provided profile. See
-	 * libinput_acceleration_profile_set_curve_point() for details.
-	 */
-	LIBINPUT_CONFIG_ACCEL_PROFILE_DEVICE_SPEED_CURVE = (1 << 2),
 };
 
 /**
@@ -4635,13 +4586,6 @@ libinput_device_config_accel_get_profiles(struct libinput_device *device);
  * Set the pointer acceleration profile of this pointer device to the given
  * mode.
  *
- * If the given profile is
- * @ref LIBINPUT_CONFIG_ACCEL_PROFILE_DEVICE_SPEED_CURVE and it is
- * different to the current profile, the acceleration curve is reset to an
- * implementation-defined curve. The caller should call
- * libinput_device_config_accel_set_curve_point() to
- * define the curve points of the acceleration profile.
- *
  * @param device The device to configure
  * @param mode The mode to set the device to.
  *
diff --git a/src/libinput.sym b/src/libinput.sym
index f991aeea..aa2794e9 100644
--- a/src/libinput.sym
+++ b/src/libinput.sym
@@ -295,6 +295,5 @@ LIBINPUT_1.9 {
 } LIBINPUT_1.7;
 
 LIBINPUT_1.11 {
-	libinput_device_config_accel_set_curve_point;
 	libinput_device_touch_get_touch_count;
 } LIBINPUT_1.9;
diff --git a/test/test-pointer.c b/test/test-pointer.c
index 300c428b..d6ff4ffe 100644
--- a/test/test-pointer.c
+++ b/test/test-pointer.c
@@ -1365,23 +1365,11 @@ START_TEST(pointer_accel_direction_change)
 }
 END_TEST
 
-static inline void
-verify_set_profile(struct libinput_device *device,
-		   enum libinput_config_accel_profile profile)
-{
-	enum libinput_config_accel_profile p;
-	enum libinput_config_status status;
-
-	status = libinput_device_config_accel_set_profile(device, profile);
-	ck_assert_int_eq(status, LIBINPUT_CONFIG_STATUS_SUCCESS);
-	p = libinput_device_config_accel_get_profile(device);
-	ck_assert_int_eq(profile, p);
-}
-
 START_TEST(pointer_accel_profile_defaults)
 {
 	struct litest_device *dev = litest_current_device();
 	struct libinput_device *device = dev->libinput_device;
+	enum libinput_config_status status;
 	enum libinput_config_accel_profile profile;
 	uint32_t profiles;
 
@@ -1396,18 +1384,25 @@ START_TEST(pointer_accel_profile_defaults)
 	profiles = libinput_device_config_accel_get_profiles(device);
 	ck_assert(profiles & LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE);
 	ck_assert(profiles & LIBINPUT_CONFIG_ACCEL_PROFILE_FLAT);
-	ck_assert(profiles & LIBINPUT_CONFIG_ACCEL_PROFILE_DEVICE_SPEED_CURVE);
 
-	verify_set_profile(device, LIBINPUT_CONFIG_ACCEL_PROFILE_FLAT);
+	status = libinput_device_config_accel_set_profile(device,
+							  LIBINPUT_CONFIG_ACCEL_PROFILE_FLAT);
+	ck_assert_int_eq(status, LIBINPUT_CONFIG_STATUS_SUCCESS);
+	profile = libinput_device_config_accel_get_profile(device);
+	ck_assert_int_eq(profile, LIBINPUT_CONFIG_ACCEL_PROFILE_FLAT);
 
 	profile = libinput_device_config_accel_get_default_profile(device);
 	ck_assert_int_eq(profile, LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE);
 
-	verify_set_profile(device, LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE);
+	status = libinput_device_config_accel_set_profile(device,
+							  LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE);
+	ck_assert_int_eq(status, LIBINPUT_CONFIG_STATUS_SUCCESS);
+	profile = libinput_device_config_accel_get_profile(device);
+	ck_assert_int_eq(profile, LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE);
 }
 END_TEST
 
-START_TEST(pointer_accel_profile_defaults_touchpad)
+START_TEST(pointer_accel_profile_defaults_noprofile)
 {
 	struct litest_device *dev = litest_current_device();
 	struct libinput_device *device = dev->libinput_device;
@@ -1418,26 +1413,25 @@ START_TEST(pointer_accel_profile_defaults_touchpad)
 	ck_assert(libinput_device_config_accel_is_available(device));
 
 	profile = libinput_device_config_accel_get_default_profile(device);
-	ck_assert_int_eq(profile, LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE);
+	ck_assert_int_eq(profile, LIBINPUT_CONFIG_ACCEL_PROFILE_NONE);
 
 	profile = libinput_device_config_accel_get_profile(device);
-	ck_assert_int_eq(profile, LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE);
+	ck_assert_int_eq(profile, LIBINPUT_CONFIG_ACCEL_PROFILE_NONE);
 
 	profiles = libinput_device_config_accel_get_profiles(device);
-	ck_assert(profiles & LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE);
-	ck_assert(profiles & LIBINPUT_CONFIG_ACCEL_PROFILE_DEVICE_SPEED_CURVE);
-
-	verify_set_profile(device, LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE);
-	verify_set_profile(device, LIBINPUT_CONFIG_ACCEL_PROFILE_DEVICE_SPEED_CURVE);
-	profile = libinput_device_config_accel_get_default_profile(device);
-	ck_assert_int_eq(profile, LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE);
+	ck_assert_int_eq(profiles, LIBINPUT_CONFIG_ACCEL_PROFILE_NONE);
 
-	verify_set_profile(device, LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE);
 	status = libinput_device_config_accel_set_profile(device,
 							  LIBINPUT_CONFIG_ACCEL_PROFILE_FLAT);
 	ck_assert_int_eq(status, LIBINPUT_CONFIG_STATUS_UNSUPPORTED);
 	profile = libinput_device_config_accel_get_profile(device);
-	ck_assert_int_eq(profile, LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE);
+	ck_assert_int_eq(profile, LIBINPUT_CONFIG_ACCEL_PROFILE_NONE);
+
+	status = libinput_device_config_accel_set_profile(device,
+							  LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE);
+	ck_assert_int_eq(status, LIBINPUT_CONFIG_STATUS_UNSUPPORTED);
+	profile = libinput_device_config_accel_get_profile(device);
+	ck_assert_int_eq(profile, LIBINPUT_CONFIG_ACCEL_PROFILE_NONE);
 }
 END_TEST
 
@@ -2583,7 +2577,7 @@ TEST_COLLECTION(pointer)
 	litest_add("pointer:accel", pointer_accel_defaults_absolute_relative, LITEST_ABSOLUTE|LITEST_RELATIVE, LITEST_ANY);
 	litest_add("pointer:accel", pointer_accel_direction_change, LITEST_RELATIVE, LITEST_POINTINGSTICK);
 	litest_add("pointer:accel", pointer_accel_profile_defaults, LITEST_RELATIVE, LITEST_TOUCHPAD);
-	litest_add("pointer:accel", pointer_accel_profile_defaults_touchpad, LITEST_TOUCHPAD, LITEST_ANY);
+	litest_add("pointer:accel", pointer_accel_profile_defaults_noprofile, LITEST_TOUCHPAD, LITEST_ANY);
 	litest_add("pointer:accel", pointer_accel_profile_invalid, LITEST_RELATIVE, LITEST_ANY);
 	litest_add("pointer:accel", pointer_accel_profile_noaccel, LITEST_ANY, LITEST_TOUCHPAD|LITEST_RELATIVE|LITEST_TABLET);
 	litest_add("pointer:accel", pointer_accel_profile_flat_motion_relative, LITEST_RELATIVE, LITEST_TOUCHPAD);
diff --git a/tools/libinput-debug-events.man b/tools/libinput-debug-events.man
index 07674990..8a63821e 100644
--- a/tools/libinput-debug-events.man
+++ b/tools/libinput-debug-events.man
@@ -68,11 +68,6 @@ Enable or disable middle button emulation
 .B \-\-enable\-dwt|\-\-disable\-dwt
 Enable or disable disable-while-typing
 .TP 8
-.B \-\-set\-accel-curve-points="x1:y1;x2:y2"
-Sets the curve points for the \fIcustom-speed\fR acceleration profile. The
-set of curve points is a semicolon-separate lists of key-value pairs, each
-separated by a colon. Each value is a non-negative double.
-.TP 8
 .B \-\-set\-click\-method=[none|clickfinger|buttonareas]
 Set the desired click method
 .TP 8
@@ -82,9 +77,8 @@ Set the desired scroll method
 .B \-\-set\-scroll\-button=BTN_MIDDLE
 Set the button to the given button code
 .TP 8
-.B \-\-set\-profile=[adaptive|flat|custom-speed]
-Set pointer acceleration profile. If the \fIcustom-speed\fR profile is
-selected, use \fB\-\-set-accel-curve-points\fR to specify the curve points.
+.B \-\-set\-profile=[adaptive|flat]
+Set pointer acceleration profile
 .TP 8
 .B \-\-set\-speed=<value>
 Set pointer acceleration speed. The allowed range is [-1, 1].
diff --git a/tools/libinput-list-devices.c b/tools/libinput-list-devices.c
index 060d4b29..aa225ca0 100644
--- a/tools/libinput-list-devices.c
+++ b/tools/libinput-list-devices.c
@@ -205,13 +205,11 @@ accel_profiles(struct libinput_device *device)
 
 	profile = libinput_device_config_accel_get_default_profile(device);
 	xasprintf(&str,
-		  "%s%s %s%s %s%s",
+		  "%s%s %s%s",
 		  (profile == LIBINPUT_CONFIG_ACCEL_PROFILE_FLAT) ? "*" : "",
 		  (profiles & LIBINPUT_CONFIG_ACCEL_PROFILE_FLAT) ? "flat" : "",
 		  (profile == LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE) ? "*" : "",
-		  (profiles & LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE) ? "adaptive" : "",
-		  (profile == LIBINPUT_CONFIG_ACCEL_PROFILE_DEVICE_SPEED_CURVE) ? "*" : "",
-		  (profiles & LIBINPUT_CONFIG_ACCEL_PROFILE_DEVICE_SPEED_CURVE) ? "custom-speed" : "");
+		  (profiles & LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE) ? "adaptive" : "");
 
 	return str;
 }
diff --git a/tools/ptraccel-debug.c b/tools/ptraccel-debug.c
index a98b615d..670f0457 100644
--- a/tools/ptraccel-debug.c
+++ b/tools/ptraccel-debug.c
@@ -161,12 +161,11 @@ print_accel_func(struct motion_filter *filter,
 	printf("# set style data lines\n");
 	printf("# plot \"gnuplot.data\" using 1:2 title 'accel factor'\n");
 	printf("#\n");
-	printf("# data: velocity(mm/s) factor velocity(units/us) velocity(units/ms)\n");
+	printf("# data: velocity(mm/s) factor velocity(units/us)\n");
 	for (mmps = 0.0; mmps < 1000.0; mmps += 1) {
 		double units_per_us = mmps_to_upus(mmps, dpi);
-		double units_per_ms = units_per_us * 1000;
 		double result = profile(filter, NULL, units_per_us, 0 /* time */);
-		printf("%.8f\t%.4f\t%.8f\t%.8f\n", mmps, result, units_per_us, units_per_ms);
+		printf("%.8f\t%.4f\t%.8f\n", mmps, result, units_per_us);
 	}
 }
 
@@ -244,7 +243,6 @@ main(int argc, char **argv)
 	const char *filter_type = "linear";
 	accel_profile_func_t profile = NULL;
 	int tp_range_max = 20;
-	const char *curve_points = NULL;
 
 	enum {
 		OPT_HELP = 1,
@@ -256,7 +254,6 @@ main(int argc, char **argv)
 		OPT_DPI,
 		OPT_FILTER,
 		OPT_TRACKPOINT_RANGE,
-		OPT_CURVE_POINTS,
 	};
 
 	while (1) {
@@ -272,7 +269,6 @@ main(int argc, char **argv)
 			{"dpi", 1, 0, OPT_DPI },
 			{"filter", 1, 0, OPT_FILTER },
 			{"trackpoint-range", 1, 0, OPT_TRACKPOINT_RANGE },
-			{"curve-points", 1, 0, OPT_CURVE_POINTS },
 			{0, 0, 0, 0}
 		};
 
@@ -333,9 +329,6 @@ main(int argc, char **argv)
 		case OPT_TRACKPOINT_RANGE:
 			tp_range_max = strtod(optarg, NULL);
 			break;
-		case OPT_CURVE_POINTS:
-			curve_points = optarg;
-			break;
 		default:
 			usage();
 			exit(1);
@@ -358,24 +351,6 @@ main(int argc, char **argv)
 	} else if (streq(filter_type, "trackpoint")) {
 		filter = create_pointer_accelerator_filter_trackpoint(tp_range_max);
 		profile = NULL; /* trackpoint is special */
-	} else if (streq(filter_type, "custom-speed")) {
-		struct key_value_double *points;
-		ssize_t npoints;
-
-		filter = create_pointer_accelerator_filter_custom_device_speed();
-		profile = custom_accel_profile;
-
-		npoints = kv_double_from_string(curve_points, ";", ":", &points);
-		if (npoints <= 0)
-			return 1;
-
-		for (ssize_t idx = 0; idx < npoints; idx++){
-			filter_set_curve_point(filter,
-					       points[idx].key,
-					       points[idx].value);
-		}
-
-		free(points);
 	} else {
 		fprintf(stderr, "Invalid filter type %s\n", filter_type);
 		return 1;
diff --git a/tools/shared.c b/tools/shared.c
index 85c0d739..c1ce6473 100644
--- a/tools/shared.c
+++ b/tools/shared.c
@@ -218,17 +218,6 @@ tools_parse_option(int option,
 			 "%s",
 			 optarg);
 		break;
-	case OPT_CURVE_POINTS:
-		if (!optarg)
-			return 1;
-
-		options->ncurve_points = kv_double_from_string(
-						optarg,
-						";", ":",
-						&options->curve_points);
-		if (options->ncurve_points < 0)
-			return 1;
-		break;
 	}
 
 	return 0;
@@ -397,16 +386,6 @@ tools_device_apply_config(struct libinput_device *device,
 		libinput_device_config_send_events_set_mode(device,
 					    LIBINPUT_CONFIG_SEND_EVENTS_DISABLED);
 	}
-
-	if (libinput_device_config_accel_get_profile(device) ==
-		    LIBINPUT_CONFIG_ACCEL_PROFILE_DEVICE_SPEED_CURVE) {
-		for (ssize_t idx = 0; idx < options->ncurve_points; idx++) {
-			double x = options->curve_points[idx].key,
-			       fx = options->curve_points[idx].value;
-
-			libinput_device_config_accel_set_curve_point(device, x, fx);
-		}
-	}
 }
 
 static char*
diff --git a/tools/shared.h b/tools/shared.h
index dc61b5b7..55e15409 100644
--- a/tools/shared.h
+++ b/tools/shared.h
@@ -50,7 +50,6 @@ enum configuration_options {
 	OPT_SPEED,
 	OPT_PROFILE,
 	OPT_DISABLE_SENDEVENTS,
-	OPT_CURVE_POINTS,
 };
 
 #define CONFIGURATION_OPTIONS \
@@ -74,8 +73,7 @@ enum configuration_options {
 	{ "set-scroll-button",         required_argument, 0, OPT_SCROLL_BUTTON }, \
 	{ "set-profile",               required_argument, 0, OPT_PROFILE }, \
 	{ "set-tap-map",               required_argument, 0, OPT_TAP_MAP }, \
-	{ "set-speed",                 required_argument, 0, OPT_SPEED }, \
-	{ "set-accel-curve-points",    required_argument, 0, OPT_CURVE_POINTS }
+	{ "set-speed",                 required_argument, 0, OPT_SPEED }
 
 enum tools_backend {
 	BACKEND_DEVICE,
@@ -97,9 +95,6 @@ struct tools_options {
 	int dwt;
 	enum libinput_config_accel_profile profile;
 	char disable_pattern[64];
-
-	struct key_value_double *curve_points;
-	ssize_t ncurve_points;
 };
 
 void tools_init_options(struct tools_options *options);