473 lines
11 KiB
Groff
473 lines
11 KiB
Groff
.\" Copyright 1997 John-Mark Gurney. All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY John-Mark Gurney AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd March 25, 2014
|
|
.Dt SYSMOUSE 4
|
|
.Os
|
|
.Sh NAME
|
|
.Nm sysmouse
|
|
.\" .Nd supplies mouse data from syscons for other applications
|
|
.Nd virtualized mouse driver
|
|
.Sh SYNOPSIS
|
|
.In sys/mouse.h
|
|
.In sys/consio.h
|
|
.Sh DESCRIPTION
|
|
The console driver, in conjunction with the mouse daemon
|
|
.Xr moused 8 ,
|
|
supplies mouse data to the user process in the standardized way via the
|
|
.Nm
|
|
driver.
|
|
This arrangement makes it possible for the console and the user process
|
|
(such as the
|
|
.Tn X\ Window System )
|
|
to share the mouse.
|
|
.Pp
|
|
The user process which wants to utilize mouse operation simply opens
|
|
.Pa /dev/sysmouse
|
|
with a
|
|
.Xr open 2
|
|
call and reads
|
|
mouse data from the device via
|
|
.Xr read 2 .
|
|
Make sure that
|
|
.Xr moused 8
|
|
is running, otherwise the user process will not see any data coming from
|
|
the mouse.
|
|
.Pp
|
|
.Ss Operation Levels
|
|
The
|
|
.Nm
|
|
driver has two levels of operation.
|
|
The current operation level can be referred to and changed via ioctl calls.
|
|
.Pp
|
|
The level zero, the basic level, is the lowest level at which the driver
|
|
offers the basic service to user programs.
|
|
The
|
|
.Nm
|
|
driver
|
|
provides horizontal and vertical movement of the mouse
|
|
and state of up to three buttons in the
|
|
.Tn MouseSystems
|
|
format as follows.
|
|
.Pp
|
|
.Bl -tag -width Byte_1 -compact
|
|
.It Byte 1
|
|
.Bl -tag -width bit_7 -compact
|
|
.It bit 7
|
|
Always one.
|
|
.It bit 6..3
|
|
Always zero.
|
|
.It bit 2
|
|
Left button status; cleared if pressed, otherwise set.
|
|
.It bit 1
|
|
Middle button status; cleared if pressed, otherwise set.
|
|
Always one,
|
|
if the device does not have the middle button.
|
|
.It bit 0
|
|
Right button status; cleared if pressed, otherwise set.
|
|
.El
|
|
.It Byte 2
|
|
The first half of horizontal movement count in two's complement;
|
|
\-128 through 127.
|
|
.It Byte 3
|
|
The first half of vertical movement count in two's complement;
|
|
\-128 through 127.
|
|
.It Byte 4
|
|
The second half of the horizontal movement count in two's complement;
|
|
\-128 through 127.
|
|
To obtain the full horizontal movement count, add
|
|
the byte 2 and 4.
|
|
.It Byte 5
|
|
The second half of the vertical movement count in two's complement;
|
|
\-128 through 127.
|
|
To obtain the full vertical movement count, add
|
|
the byte 3 and 5.
|
|
.El
|
|
.Pp
|
|
At the level one, the extended level, mouse data is encoded
|
|
in the standard format
|
|
.Dv MOUSE_PROTO_SYSMOUSE
|
|
as defined in
|
|
.Xr mouse 4 .
|
|
.\" .Ss Acceleration
|
|
.\" The
|
|
.\" .Nm
|
|
.\" driver can somewhat `accelerate' the movement of the pointing device.
|
|
.\" The faster you move the device, the further the pointer
|
|
.\" travels on the screen.
|
|
.\" The driver has an internal variable which governs the effect of
|
|
.\" the acceleration. Its value can be modified via the driver flag
|
|
.\" or via an ioctl call.
|
|
.Sh IOCTLS
|
|
This section describes two classes of
|
|
.Xr ioctl 2
|
|
commands:
|
|
commands for the
|
|
.Nm
|
|
driver itself, and commands for the console and the console control drivers.
|
|
.Ss Sysmouse Ioctls
|
|
There are a few commands for mouse drivers.
|
|
General description of the commands is given in
|
|
.Xr mouse 4 .
|
|
Following are the features specific to the
|
|
.Nm
|
|
driver.
|
|
.Pp
|
|
.Bl -tag -width MOUSE -compact
|
|
.It Dv MOUSE_GETLEVEL Ar int *level
|
|
.It Dv MOUSE_SETLEVEL Ar int *level
|
|
These commands manipulate the operation level of the mouse driver.
|
|
.Pp
|
|
.It Dv MOUSE_GETHWINFO Ar mousehw_t *hw
|
|
Returns the hardware information of the attached device in the following
|
|
structure.
|
|
Only the
|
|
.Va iftype
|
|
field is guaranteed to be filled with the correct value in the current
|
|
version of the
|
|
.Nm
|
|
driver.
|
|
.Bd -literal
|
|
typedef struct mousehw {
|
|
int buttons; /* number of buttons */
|
|
int iftype; /* I/F type */
|
|
int type; /* mouse/track ball/pad... */
|
|
int model; /* I/F dependent model ID */
|
|
int hwid; /* I/F dependent hardware ID */
|
|
} mousehw_t;
|
|
.Ed
|
|
.Pp
|
|
The
|
|
.Va buttons
|
|
field holds the number of buttons detected by the driver.
|
|
.Pp
|
|
The
|
|
.Va iftype
|
|
is always
|
|
.Dv MOUSE_IF_SYSMOUSE .
|
|
.Pp
|
|
The
|
|
.Va type
|
|
tells the device type:
|
|
.Dv MOUSE_MOUSE ,
|
|
.Dv MOUSE_TRACKBALL ,
|
|
.Dv MOUSE_STICK ,
|
|
.Dv MOUSE_PAD ,
|
|
or
|
|
.Dv MOUSE_UNKNOWN .
|
|
.Pp
|
|
The
|
|
.Va model
|
|
is always
|
|
.Dv MOUSE_MODEL_GENERIC
|
|
at the operation level 0.
|
|
It may be
|
|
.Dv MOUSE_MODEL_GENERIC
|
|
or one of
|
|
.Dv MOUSE_MODEL_XXX
|
|
constants at higher operation levels.
|
|
.Pp
|
|
The
|
|
.Va hwid
|
|
is always zero.
|
|
.Pp
|
|
.It Dv MOUSE_GETMODE Ar mousemode_t *mode
|
|
The command gets the current operation parameters of the mouse
|
|
driver.
|
|
.Bd -literal
|
|
typedef struct mousemode {
|
|
int protocol; /* MOUSE_PROTO_XXX */
|
|
int rate; /* report rate (per sec) */
|
|
int resolution; /* MOUSE_RES_XXX, -1 if unknown */
|
|
int accelfactor; /* acceleration factor */
|
|
int level; /* driver operation level */
|
|
int packetsize; /* the length of the data packet */
|
|
unsigned char syncmask[2]; /* sync. bits */
|
|
} mousemode_t;
|
|
.Ed
|
|
.Pp
|
|
The
|
|
.Va protocol
|
|
field tells the format in which the device status is returned
|
|
when the mouse data is read by the user program.
|
|
It is
|
|
.Dv MOUSE_PROTO_MSC
|
|
at the operation level zero.
|
|
.Dv MOUSE_PROTO_SYSMOUSE
|
|
at the operation level one.
|
|
.Pp
|
|
The
|
|
.Va rate
|
|
is always set to \-1.
|
|
.Pp
|
|
The
|
|
.Va resolution
|
|
is always set to \-1.
|
|
.Pp
|
|
The
|
|
.Va accelfactor
|
|
is always 0.
|
|
.Pp
|
|
The
|
|
.Va packetsize
|
|
field specifies the length of the data packet.
|
|
It depends on the
|
|
operation level.
|
|
.Pp
|
|
.Bl -tag -width level_0__ -compact
|
|
.It Em level 0
|
|
5 bytes
|
|
.It Em level 1
|
|
8 bytes
|
|
.El
|
|
.Pp
|
|
The array
|
|
.Va syncmask
|
|
holds a bit mask and pattern to detect the first byte of the
|
|
data packet.
|
|
.Va syncmask[0]
|
|
is the bit mask to be ANDed with a byte.
|
|
If the result is equal to
|
|
.Va syncmask[1] ,
|
|
the byte is likely to be the first byte of the data packet.
|
|
Note that this method of detecting the first byte is not 100% reliable;
|
|
thus, it should be taken only as an advisory measure.
|
|
.Pp
|
|
.It Dv MOUSE_SETMODE Ar mousemode_t *mode
|
|
The command changes the current operation parameters of the mouse driver
|
|
as specified in
|
|
.Ar mode .
|
|
Only
|
|
.Va level
|
|
may be modifiable.
|
|
Setting values in the other field does not generate
|
|
error and has no effect.
|
|
.\" .Pp
|
|
.\" .It Dv MOUSE_GETVARS Ar mousevar_t *vars
|
|
.\" .It Dv MOUSE_SETVARS Ar mousevar_t *vars
|
|
.\" These commands are not supported by the
|
|
.\" .Nm
|
|
.\" driver.
|
|
.Pp
|
|
.It Dv MOUSE_READDATA Ar mousedata_t *data
|
|
.It Dv MOUSE_READSTATE Ar mousedata_t *state
|
|
These commands are not supported by the
|
|
.Nm
|
|
driver.
|
|
.Pp
|
|
.It Dv MOUSE_GETSTATUS Ar mousestatus_t *status
|
|
The command returns the current state of buttons and
|
|
movement counts in the structure as defined in
|
|
.Xr mouse 4 .
|
|
.El
|
|
.Ss Console and Consolectl Ioctls
|
|
The user process issues console
|
|
.Fn ioctl
|
|
calls to the current virtual console in order to control
|
|
the mouse pointer.
|
|
The console
|
|
.Fn ioctl
|
|
also provides a method for the user process to receive a
|
|
.Xr signal 3
|
|
when a button is pressed.
|
|
.Pp
|
|
The mouse daemon
|
|
.Xr moused 8
|
|
uses
|
|
.Fn ioctl
|
|
calls to the console control device
|
|
.Pa /dev/consolectl
|
|
to inform the console of mouse actions including mouse movement
|
|
and button status.
|
|
.Pp
|
|
Both classes of
|
|
.Fn ioctl
|
|
commands are defined as
|
|
.Dv CONS_MOUSECTL
|
|
which takes the following argument.
|
|
.Bd -literal
|
|
struct mouse_info {
|
|
int operation;
|
|
union {
|
|
struct mouse_data data;
|
|
struct mouse_mode mode;
|
|
struct mouse_event event;
|
|
} u;
|
|
};
|
|
.Ed
|
|
.Pp
|
|
.Bl -tag -width operation -compact
|
|
.It Va operation
|
|
This can be one of
|
|
.Pp
|
|
.Bl -tag -width MOUSE_MOVEABS -compact
|
|
.It Dv MOUSE_SHOW
|
|
Enables and displays mouse cursor.
|
|
.It Dv MOUSE_HIDE
|
|
Disables and hides mouse cursor.
|
|
.It Dv MOUSE_MOVEABS
|
|
Moves mouse cursor to position supplied in
|
|
.Va u.data .
|
|
.It Dv MOUSE_MOVEREL
|
|
Adds position supplied in
|
|
.Va u.data
|
|
to current position.
|
|
.It Dv MOUSE_GETINFO
|
|
Returns current mouse position in the current virtual console
|
|
and button status in
|
|
.Va u.data .
|
|
.It Dv MOUSE_MODE
|
|
This sets the
|
|
.Xr signal 3
|
|
to be delivered to the current process when a button is pressed.
|
|
The signal to be delivered is set in
|
|
.Va u.mode .
|
|
.El
|
|
.Pp
|
|
The above operations are for virtual consoles.
|
|
The operations defined
|
|
below are for the console control device and are used by
|
|
.Xr moused 8
|
|
to pass mouse data to the console driver.
|
|
.Pp
|
|
.Bl -tag -width MOUSE_MOVEABS -compact
|
|
.It Dv MOUSE_ACTION
|
|
.It Dv MOUSE_MOTION_EVENT
|
|
These operations take the information in
|
|
.Va u.data
|
|
and act upon it.
|
|
Mouse data will be sent to the
|
|
.Nm
|
|
driver if it is open.
|
|
.Dv MOUSE_ACTION
|
|
also processes button press actions and sends signal to the process if
|
|
requested or performs cut and paste operations
|
|
if the current console is a text interface.
|
|
.It Dv MOUSE_BUTTON_EVENT
|
|
.Va u.data
|
|
specifies a button and its click count.
|
|
The console driver will
|
|
use this information for signal delivery if requested or
|
|
for cut and paste operations if the console is in text mode.
|
|
.El
|
|
.Pp
|
|
.Dv MOUSE_MOTION_EVENT
|
|
and
|
|
.Dv MOUSE_BUTTON_EVENT
|
|
are newer interface and are designed to be used together.
|
|
They are intended to replace functions performed by
|
|
.Dv MOUSE_ACTION
|
|
alone.
|
|
.Pp
|
|
.It Va u
|
|
This union is one of
|
|
.Pp
|
|
.Bl -tag -width data -compact
|
|
.It Va data
|
|
.Bd -literal
|
|
struct mouse_data {
|
|
int x;
|
|
int y;
|
|
int z;
|
|
int buttons;
|
|
};
|
|
.Ed
|
|
.Pp
|
|
.Va x , y
|
|
and
|
|
.Va z
|
|
represent movement of the mouse along respective directions.
|
|
.Va buttons
|
|
tells the state of buttons.
|
|
It encodes up to 31 buttons in the bit 0 though
|
|
the bit 30.
|
|
If a button is held down, the corresponding bit is set.
|
|
.Pp
|
|
.It Va mode
|
|
.Bd -literal
|
|
struct mouse_mode {
|
|
int mode;
|
|
int signal;
|
|
};
|
|
.Ed
|
|
.Pp
|
|
The
|
|
.Va signal
|
|
field specifies the signal to be delivered to the process.
|
|
It must be
|
|
one of the values defined in
|
|
.In signal.h .
|
|
The
|
|
.Va mode
|
|
field is currently unused.
|
|
.Pp
|
|
.It Va event
|
|
.Bd -literal
|
|
struct mouse_event {
|
|
int id;
|
|
int value;
|
|
};
|
|
.Ed
|
|
.Pp
|
|
The
|
|
.Va id
|
|
field specifies a button number as in
|
|
.Va u.data.buttons .
|
|
Only one bit/button is set.
|
|
The
|
|
.Va value
|
|
field
|
|
holds the click count: the number of times the user has clicked the button
|
|
successively.
|
|
.El
|
|
.El
|
|
.Sh FILES
|
|
.Bl -tag -width /dev/consolectl -compact
|
|
.It Pa /dev/consolectl
|
|
device to control the console
|
|
.It Pa /dev/sysmouse
|
|
virtualized mouse driver
|
|
.It Pa /dev/ttyv%d
|
|
virtual consoles
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr vidcontrol 1 ,
|
|
.Xr ioctl 2 ,
|
|
.Xr signal 3 ,
|
|
.Xr mouse 4 ,
|
|
.Xr moused 8
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
driver first appeared in
|
|
.Fx 2.2 .
|
|
.Sh AUTHORS
|
|
.An -nosplit
|
|
This
|
|
manual page was written by
|
|
.An John-Mark Gurney Aq Mt jmg@FreeBSD.org
|
|
and
|
|
.An Kazutaka Yokota Aq Mt yokota@FreeBSD.org .
|