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[evdev] Adds evdev support to sysmouse(4) driver

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For horizontal (T-axis) wheel reporting which is not supported by
sysmouse protocol kern.evdev.sysmouse_t_axis sysctl is introduced.
It can take following values:

0 - no T-axis events (default)
1 - T-axis events are originated in ums(4) driver.
2 - T-axis events are originated in psm(4) driver.

Submitted by:	Vladimir Kondratiev <wulf@cicgroup.ru>
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D8597
This commit is contained in:
Oleksandr Tymoshenko 2016-12-10 18:07:16 +00:00
parent c837b8e35f
commit 4af79d4f2b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=309823
4 changed files with 181 additions and 1 deletions
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3
sys/dev/evdev/evdev.c
View file

@ -63,11 +63,14 @@ enum evdev_sparse_result
MALLOC_DEFINE(M_EVDEV, "evdev", "evdev memory");
int evdev_rcpt_mask = EVDEV_RCPT_SYSMOUSE | EVDEV_RCPT_KBDMUX;
int evdev_sysmouse_t_axis = 0;
SYSCTL_NODE(_kern, OID_AUTO, evdev, CTLFLAG_RW, 0, "Evdev args");
SYSCTL_INT(_kern_evdev, OID_AUTO, rcpt_mask, CTLFLAG_RW, &evdev_rcpt_mask, 0,
"Who is receiving events: bit0 - sysmouse, bit1 - kbdmux, "
"bit2 - mouse hardware, bit3 - keyboard hardware");
SYSCTL_INT(_kern_evdev, OID_AUTO, sysmouse_t_axis, CTLFLAG_RW,
&evdev_sysmouse_t_axis, 0, "Extract T-axis from 0-none, 1-ums, 2-psm");
static void evdev_start_repeat(struct evdev_dev *, uint16_t);
static void evdev_stop_repeat(struct evdev_dev *);

16
sys/dev/evdev/evdev.h
View file

@ -56,6 +56,22 @@ typedef void (evdev_keycode_t)(struct evdev_dev *, void *,
#define EVDEV_RCPT_HW_MOUSE (1<<2)
#define EVDEV_RCPT_HW_KBD (1<<3)
extern int evdev_rcpt_mask;
/*
* Sysmouse protocol does not support horizontal wheel movement reporting.
* To overcome this limitation different drivers use different sysmouse proto
* extensions. Set kern.evdev.sysmouse_t_axis to tell sysmouse evdev driver
* which protocol extension is used.
* 0 - do not extract horizontal wheel movement (default).
* 1 - ums(4) horizontal wheel encoding. T-axis is mapped to buttons 6 and 7
* 2 - psm(4) wheels encoding: z = 1,-1 - vert. wheel, z = 2,-2 - horiz. wheel
*/
enum
{
EVDEV_SYSMOUSE_T_AXIS_NONE = 0,
EVDEV_SYSMOUSE_T_AXIS_UMS = 1,
EVDEV_SYSMOUSE_T_AXIS_PSM = 2,
};
extern int evdev_sysmouse_t_axis;
#define ABS_MT_FIRST ABS_MT_TOUCH_MAJOR
#define ABS_MT_LAST ABS_MT_TOOL_Y

84
sys/dev/syscons/sysmouse.c
View file

@ -28,6 +28,7 @@
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_evdev.h"
#include "opt_syscons.h"
#include <sys/param.h>
@ -43,6 +44,11 @@ __FBSDID("$FreeBSD$");
#include <dev/syscons/syscons.h>
#ifdef EVDEV_SUPPORT
#include <dev/evdev/input.h>
#include <dev/evdev/evdev.h>
#endif
#ifndef SC_NO_SYSMOUSE
/* local variables */
@ -50,6 +56,72 @@ static struct tty *sysmouse_tty;
static int mouse_level; /* sysmouse protocol level */
static mousestatus_t mouse_status;
#ifdef EVDEV_SUPPORT
static struct evdev_dev *sysmouse_evdev;
static void
smdev_evdev_init(void)
{
int i;
sysmouse_evdev = evdev_alloc();
evdev_set_name(sysmouse_evdev, "System mouse");
evdev_set_phys(sysmouse_evdev, "sysmouse");
evdev_set_id(sysmouse_evdev, BUS_VIRTUAL, 0, 0, 0);
evdev_support_prop(sysmouse_evdev, INPUT_PROP_POINTER);
evdev_support_event(sysmouse_evdev, EV_SYN);
evdev_support_event(sysmouse_evdev, EV_REL);
evdev_support_event(sysmouse_evdev, EV_KEY);
evdev_support_rel(sysmouse_evdev, REL_X);
evdev_support_rel(sysmouse_evdev, REL_Y);
evdev_support_rel(sysmouse_evdev, REL_WHEEL);
evdev_support_rel(sysmouse_evdev, REL_HWHEEL);
for (i = 0; i < 8; i++)
evdev_support_key(sysmouse_evdev, BTN_MOUSE + i);
if (evdev_register(sysmouse_evdev)) {
evdev_free(sysmouse_evdev);
sysmouse_evdev = NULL;
}
}
static void
smdev_evdev_write(int x, int y, int z, int buttons)
{
if (sysmouse_evdev == NULL || !(evdev_rcpt_mask & EVDEV_RCPT_SYSMOUSE))
return;
evdev_push_event(sysmouse_evdev, EV_REL, REL_X, x);
evdev_push_event(sysmouse_evdev, EV_REL, REL_Y, y);
switch (evdev_sysmouse_t_axis) {
case EVDEV_SYSMOUSE_T_AXIS_PSM:
switch (z) {
case 1:
case -1:
evdev_push_rel(sysmouse_evdev, REL_WHEEL, -z);
break;
case 2:
case -2:
evdev_push_rel(sysmouse_evdev, REL_HWHEEL, z / 2);
break;
}
break;
case EVDEV_SYSMOUSE_T_AXIS_UMS:
/* XXX: Edge triggering should be used here */
if (buttons & (1 << 5))
evdev_push_rel(sysmouse_evdev, REL_HWHEEL, 1);
else if (buttons & (1 << 6))
evdev_push_rel(sysmouse_evdev, REL_HWHEEL, -1);
/* PASSTHROUGH */
case EVDEV_SYSMOUSE_T_AXIS_NONE:
default:
evdev_push_rel(sysmouse_evdev, REL_WHEEL, -z);
}
evdev_push_mouse_btn(sysmouse_evdev, buttons);
evdev_sync(sysmouse_evdev);
}
#endif
static void
smdev_close(struct tty *tp)
{
@ -170,6 +242,9 @@ sm_attach_mouse(void *unused)
return;
sysmouse_tty = tty_alloc(&smdev_ttydevsw, NULL);
tty_makedev(sysmouse_tty, NULL, "sysmouse");
#ifdef EVDEV_SUPPORT
smdev_evdev_init();
#endif
}
SYSINIT(sysmouse, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sm_attach_mouse, NULL);
@ -220,7 +295,14 @@ sysmouse_event(mouse_info_t *info)
mouse_status.flags |= ((x || y || z) ? MOUSE_POSCHANGED : 0)
| (mouse_status.obutton ^ mouse_status.button);
flags = mouse_status.flags;
if (flags == 0 || !tty_opened(sysmouse_tty))
if (flags == 0)
goto done;
#ifdef EVDEV_SUPPORT
smdev_evdev_write(x, y, z, mouse_status.button);
#endif
if (!tty_opened(sysmouse_tty))
goto done;
/* the first five bytes are compatible with MouseSystems' */

79
sys/dev/vt/vt_sysmouse.c
View file

@ -33,6 +33,8 @@
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_evdev.h"
#include <sys/param.h>
#include <sys/condvar.h>
#include <sys/consio.h>
@ -50,6 +52,11 @@ __FBSDID("$FreeBSD$");
#include <dev/vt/vt.h>
#ifdef EVDEV_SUPPORT
#include <dev/evdev/input.h>
#include <dev/evdev/evdev.h>
#endif
static d_open_t sysmouse_open;
static d_close_t sysmouse_close;
static d_read_t sysmouse_read;
@ -81,6 +88,72 @@ static MALLOC_DEFINE(M_SYSMOUSE, "sysmouse", "sysmouse device");
static unsigned char *sysmouse_buffer;
static unsigned int sysmouse_start, sysmouse_length;
#ifdef EVDEV_SUPPORT
static struct evdev_dev *sysmouse_evdev;
static void
sysmouse_evdev_init(void)
{
int i;
sysmouse_evdev = evdev_alloc();
evdev_set_name(sysmouse_evdev, "System mouse");
evdev_set_phys(sysmouse_evdev, "sysmouse");
evdev_set_id(sysmouse_evdev, BUS_VIRTUAL, 0, 0, 0);
evdev_support_prop(sysmouse_evdev, INPUT_PROP_POINTER);
evdev_support_event(sysmouse_evdev, EV_SYN);
evdev_support_event(sysmouse_evdev, EV_REL);
evdev_support_event(sysmouse_evdev, EV_KEY);
evdev_support_rel(sysmouse_evdev, REL_X);
evdev_support_rel(sysmouse_evdev, REL_Y);
evdev_support_rel(sysmouse_evdev, REL_WHEEL);
evdev_support_rel(sysmouse_evdev, REL_HWHEEL);
for (i = 0; i < 8; i++)
evdev_support_key(sysmouse_evdev, BTN_MOUSE + i);
if (evdev_register(sysmouse_evdev)) {
evdev_free(sysmouse_evdev);
sysmouse_evdev = NULL;
}
}
static void
sysmouse_evdev_store(int x, int y, int z, int buttons)
{
if (sysmouse_evdev == NULL || !(evdev_rcpt_mask & EVDEV_RCPT_SYSMOUSE))
return;
evdev_push_event(sysmouse_evdev, EV_REL, REL_X, x);
evdev_push_event(sysmouse_evdev, EV_REL, REL_Y, y);
switch (evdev_sysmouse_t_axis) {
case EVDEV_SYSMOUSE_T_AXIS_PSM:
switch (z) {
case 1:
case -1:
evdev_push_rel(sysmouse_evdev, REL_WHEEL, -z);
break;
case 2:
case -2:
evdev_push_rel(sysmouse_evdev, REL_HWHEEL, z / 2);
break;
}
break;
case EVDEV_SYSMOUSE_T_AXIS_UMS:
/* XXX: Edge triggering should be used here */
if (buttons & (1 << 5))
evdev_push_rel(sysmouse_evdev, REL_HWHEEL, 1);
else if (buttons & (1 << 6))
evdev_push_rel(sysmouse_evdev, REL_HWHEEL, -1);
/* PASSTHROUGH */
case EVDEV_SYSMOUSE_T_AXIS_NONE:
default:
evdev_push_rel(sysmouse_evdev, REL_WHEEL, -z);
}
evdev_push_mouse_btn(sysmouse_evdev, buttons);
evdev_sync(sysmouse_evdev);
}
#endif
static int
sysmouse_buf_read(struct uio *uio, unsigned int length)
{
@ -170,6 +243,9 @@ sysmouse_process_event(mouse_info_t *mi)
if (sysmouse_status.flags == 0)
goto done;
#ifdef EVDEV_SUPPORT
sysmouse_evdev_store(x, y, z, sysmouse_status.button);
#endif
/* The first five bytes are compatible with MouseSystems. */
buf[0] = MOUSE_MSC_SYNC |
@ -404,6 +480,9 @@ sysmouse_drvinit(void *unused)
cv_init(&sysmouse_sleep, "sysmrd");
make_dev(&sysmouse_cdevsw, 0, UID_ROOT, GID_WHEEL, 0600,
"sysmouse");
#ifdef EVDEV_SUPPORT
sysmouse_evdev_init();
#endif
}
SYSINIT(sysmouse, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sysmouse_drvinit, NULL);