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* Increase minimum finger width to prevent entering scroll mode erroneously 

* Attempt to clarify what the sysctl variables for finger scroll do
* Add hysteresis to validity check so changing it does not get rejected

Thanks to Martin Husemann and Michael van Elst for reporting the issues.
This commit is contained in:
blymn 2018-11-28 09:14:03 +00:00
parent fe21bc8f27
commit ee3d5db25b
1 changed files with 11 additions and 7 deletions
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18
sys/dev/pckbport/synaptics.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: synaptics.c,v 1.44 2018/11/06 09:13:17 blymn Exp $ */
/* $NetBSD: synaptics.c,v 1.45 2018/11/28 09:14:03 blymn Exp $ */
/*
* Copyright (c) 2005, Steve C. Woodford
@ -48,7 +48,7 @@
#include "opt_pms.h"
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: synaptics.c,v 1.44 2018/11/06 09:13:17 blymn Exp $");
__KERNEL_RCSID(0, "$NetBSD: synaptics.c,v 1.45 2018/11/28 09:14:03 blymn Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -120,8 +120,8 @@ static int synaptics_max_speed_x = 32;
static int synaptics_max_speed_y = 32;
static int synaptics_max_speed_z = 2;
static int synaptics_movement_threshold = 4;
static int synaptics_fscroll_min = 5;
static int synaptics_fscroll_max = 12;
static int synaptics_fscroll_min = 13;
static int synaptics_fscroll_max = 14;
static int synaptics_dz_hold = 30;
static int synaptics_movement_enable = 1;
@ -793,7 +793,7 @@ pms_sysctl_synaptics(struct sysctllog **clog)
if ((rc = sysctl_createv(clog, 0, NULL, &node,
CTLFLAG_PERMANENT | CTLFLAG_READWRITE,
CTLTYPE_INT, "finger_scroll-min",
SYSCTL_DESCR("Minimum width for finger scrolling detection"),
SYSCTL_DESCR("Minimum width at which y cursor movements will be converted to scroll wheel events"),
pms_sysctl_synaptics_verify, 0,
&synaptics_fscroll_min,
0, CTL_HW, root_num, CTL_CREATE,
@ -805,7 +805,7 @@ pms_sysctl_synaptics(struct sysctllog **clog)
if ((rc = sysctl_createv(clog, 0, NULL, &node,
CTLFLAG_PERMANENT | CTLFLAG_READWRITE,
CTLTYPE_INT, "finger_scroll-max",
SYSCTL_DESCR("Maximum width for finger scrolling detection"),
SYSCTL_DESCR("Maximum width at which y cursor movements will be converted to scroll wheel events"),
pms_sysctl_synaptics_verify, 0,
&synaptics_fscroll_max,
0, CTL_HW, root_num, CTL_CREATE,
@ -817,7 +817,7 @@ pms_sysctl_synaptics(struct sysctllog **clog)
if ((rc = sysctl_createv(clog, 0, NULL, &node,
CTLFLAG_PERMANENT | CTLFLAG_READWRITE,
CTLTYPE_INT, "finger_scroll-hysteresis",
SYSCTL_DESCR("Number of packets to stay in finger scroll mode"),
SYSCTL_DESCR("Number of packets to keep reporting y cursor movements as scroll wheel events"),
pms_sysctl_synaptics_verify, 0,
&synaptics_dz_hold,
0, CTL_HW, root_num, CTL_CREATE,
@ -903,6 +903,10 @@ pms_sysctl_synaptics_verify(SYSCTLFN_ARGS)
if ((t < 5) || (t > 14))
return (EINVAL);
} else
if (node.sysctl_num == synaptics_dz_hold_nodenum) {
if (t < 0)
return (EINVAL);
} else
if (node.sysctl_num == synaptics_movement_enable_nodenum) {
if (t < 0 || t > 1)
return (EINVAL);