294 lines
9.1 KiB
Groff
294 lines
9.1 KiB
Groff
.\" $NetBSD: fb.4,v 1.1 2001/09/21 09:11:46 gmcgarry Exp $
|
|
.\"
|
|
.\" Copyright (c) 2001 The NetBSD Foundation, Inc.
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" This code is derived from software contributed to The NetBSD Foundation
|
|
.\" by Gregory McGarry.
|
|
.\"
|
|
.\" 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.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by the NetBSD
|
|
.\" Foundation, Inc. and its contributors.
|
|
.\" 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
.\" contributors may be used to endorse or promote products derived
|
|
.\" from this software without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
|
|
.\"
|
|
.Dd September 21, 2001
|
|
.Dt FB 4 pmax
|
|
.Os
|
|
.Sh NAME
|
|
.Nm fb
|
|
.Nd pmax frame buffer driver
|
|
.Sh SYNOPSIS
|
|
.Cd "pseudo-device fb N"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
driver provides a frame buffer driver which is generic driver for all
|
|
supported framebuffers on
|
|
.Nx Ns /pmax.
|
|
The devices to which this applies are the
|
|
.Xr cfb 4 ,
|
|
.Xr mfb 4 ,
|
|
.Xr sfb 4 ,
|
|
.Xr pm 4 (colour and mono),
|
|
.Xr px 4 , and
|
|
.Xr xcfb 4
|
|
frame buffers. It provides support for the Ultrix-compatible
|
|
pm/QVSS-style interface, mostly so that X consortium Xservers work.
|
|
It also provides support for the Sun-style frame buffer interface
|
|
which is compatible with exisiting
|
|
.Nx
|
|
applications.
|
|
.Pp
|
|
The basic programming of the
|
|
.Nm
|
|
devices involves opening the device file, mapping the control
|
|
registers and frame buffer addresses into user space, and then
|
|
manipulating the device as the application requires. The address
|
|
mapping is controlled by an
|
|
.Xr ioctl 2
|
|
call to map the device into user space, and an unmap call when
|
|
finished. The pm/QVSS-style ioctls supported by
|
|
.Nx
|
|
are:
|
|
.Bl -tag -width indent
|
|
.It Dv QIOCGINFO
|
|
Get Graphics Info
|
|
.Pp
|
|
Get info about the device, setting the entries in the
|
|
.Em pm_info
|
|
structure, as defined in <pmax/pmioctl.h>:
|
|
.Pp
|
|
.Bd -literal
|
|
typedef struct pm_info {
|
|
pmEventQueue qe; /* event & motion queues */
|
|
short mswitches; /* current value of mouse btns */
|
|
pmCursor tablet; /* current tablet position */
|
|
short tswitches; /* current tablet buttons NI! */
|
|
pmCursor cursor; /* current cursor position */
|
|
short row; /* screen row */
|
|
short col; /* screen col */
|
|
short max_row; /* max character row */
|
|
short max_col; /* max character col */
|
|
short max_x; /* max x position */
|
|
short max_y; /* max y position */
|
|
short max_cur_x; /* max cursor x position */
|
|
short max_cur_y; /* max cursor y position */
|
|
int version; /* version of driver */
|
|
char *bitmap; /* bit map position */
|
|
short *scanmap; /* scanline map position */
|
|
short *cursorbits; /* cursor bit position */
|
|
short *pmaddr; /* virtual address */
|
|
char *planemask; /* plane mask virtual location */
|
|
pmCursor mouse; /* atomic read/write */
|
|
pmBox mbox; /* atomic read/write */
|
|
short mthreshold; /* mouse motion parameter */
|
|
short mscale; /* mouse scale factor */
|
|
short min_cur_x; /* min cursor x position */
|
|
short min_cur_y; /* min cursor y position */
|
|
} PM_Info;
|
|
.Ed
|
|
.It Dv QIOCPMSTATE
|
|
Set Mouse State/Position
|
|
.Pp
|
|
Set mouse state/position, using the entries in the
|
|
.Em pmCursor
|
|
structure, as defined in <pmax/pmioctl.h>:
|
|
.Pp
|
|
.Bd -literal
|
|
typedef struct {
|
|
short x;
|
|
short y;
|
|
} pmCursor;
|
|
.Ed
|
|
.It Dv QIOCINIT
|
|
Initialise the Screen
|
|
.It Dv QIOCKPCMD
|
|
Send Keyboard Command
|
|
.Pp
|
|
Send keyboard command, using the entries in the
|
|
.Em pm_kpcmd
|
|
structure, as defined in <pmax/pmioctl.h>:
|
|
.Pp
|
|
.Bd -literal
|
|
typedef struct pm_kpcmd {
|
|
char nbytes; /* number of bytes in parameter */
|
|
unsigned char cmd; /* command to be sent */
|
|
unsigned char par[2]; /* bytes of params to be sent */
|
|
} pmKpCmd;
|
|
.Ed
|
|
.It Dv QIOCADDR
|
|
Get address
|
|
.Pp
|
|
Get address, setting the entries in the
|
|
.Em pm_info
|
|
structure, as defined in <pmax/pmioctl.h>:
|
|
.Pp
|
|
.Bd -literal
|
|
.Ed
|
|
.It Dv QIOWCURSOR
|
|
Write Cursor Bitmap
|
|
.It Dv QIOWCURSORCOLOR
|
|
Background/Foreground RGB colour
|
|
.It Dv QIOSETCMAP
|
|
Set the Colour Map
|
|
.Pp
|
|
Set the colour map, using the entries in the
|
|
.Em ColourMap
|
|
structure, as defined in <pmax/pmioctl.h>:
|
|
.Pp
|
|
.Bd -literal
|
|
typedef struct {
|
|
short Map;
|
|
unsigned short index;
|
|
struct {
|
|
unsigned short red;
|
|
unsigned short green;
|
|
unsigned short blue;
|
|
} Entry;
|
|
} ColorMap;
|
|
.Ed
|
|
.It Dv QIOKERNLOOP
|
|
Re-route kernel console output
|
|
.It Dv QIOKERNUNLOOP
|
|
Do not re-route kernel console output
|
|
.It Dv QIOVIDEOON
|
|
Turn on the video
|
|
.It Dv QIOVIDEOOFF
|
|
Turn off the video
|
|
.El
|
|
.Pp
|
|
The Sun-style ioctls supported by
|
|
.Nx
|
|
are:
|
|
.Bl -tag -width indent
|
|
.It Dv FBIOGTYPE
|
|
Get frame buffer type.
|
|
.Pp
|
|
Get info about the device, setting the entries in the
|
|
.Em fbtype
|
|
structure,as defined in <pmax/fbio.h>:
|
|
.Pp
|
|
.Bd -literal
|
|
struct fbtype {
|
|
int fb_boardtype; /* as defined above */
|
|
int fb_height; /* in pixels */
|
|
int fb_width; /* in pixels */
|
|
int fb_depth; /* bits per pixel */
|
|
int fb_cmsize; /* size of color map (entries) */
|
|
int fb_size; /* total size in bytes */
|
|
};
|
|
.Ed
|
|
.It Dv FBIOGETCMAP/FBIOPUTCMAP
|
|
Colour Map I/O
|
|
.Pp
|
|
Get or set the colour map, using the entries in the
|
|
.Em fbcmap
|
|
structure,as defined in <pmax/fbio.h>:
|
|
.Pp
|
|
.Bd -literal
|
|
struct fbcmap {
|
|
int index; /* first element (0 origin) */
|
|
int count; /* number of elements */
|
|
u_char *red; /* red color map elements */
|
|
u_char *green; /* green color map elements */
|
|
u_char *blue; /* blue color map elements */
|
|
};
|
|
.Ed
|
|
.It Dv FBIOGATTR
|
|
Get FB Attribute
|
|
.Pp
|
|
Get fb attribute, setting the entries in the
|
|
.Em fbsatter
|
|
structure,as defined in <pmax/fbio.h>:
|
|
.Pp
|
|
.Bd -literal
|
|
struct fbsattr {
|
|
int flags; /* flags; see below */
|
|
int emu_type; /* emulation (-1 if unused) */
|
|
int dev_specific[FB_ATTR_NDEVSPECIFIC];
|
|
};
|
|
.Ed
|
|
.It Dv FBIOGCURSOR/FBIOSCURSOR
|
|
Get or Set Cursor Attributes/Shape
|
|
.Pp
|
|
Get or set the cursor attributes or shape, using the entries in the
|
|
.Em fbcursor
|
|
structure, as defined in <pmax/fbio.h>:
|
|
.Pp
|
|
.Bd -literal
|
|
struct fbcursor {
|
|
short set; /* what to set */
|
|
short enable; /* enable/disable cursor */
|
|
struct fbcurpos pos; /* cursor's position */
|
|
struct fbcurpos hot; /* cursor's hot spot */
|
|
struct fbcmap cmap; /* color map info */
|
|
struct fbcurpos size; /* cursor's bit map size */
|
|
char *image; /* cursor's image bits */
|
|
char *mask; /* cursor's mask bits */
|
|
};
|
|
.Ed
|
|
.It Dv FBIOGCURPOS/FBIOSCURPOS
|
|
Get or Set Cursor Position
|
|
.Pp
|
|
Get or set cursor position, using the entries in the
|
|
.Em fbcursor
|
|
structure.
|
|
.It Dv FBIOGCURMAX
|
|
Get Maximum Cursor Size
|
|
.Pp
|
|
Get the maximum cursor size, setting the entries in the
|
|
.Em fbcursor
|
|
structure.
|
|
.It Dv FBIOGVIDEO/FBIOSVIDEO
|
|
Video Control
|
|
.Pp
|
|
Enable or disable the video.
|
|
.El
|
|
.Pp
|
|
For further information about the use of ioctl see the man page.
|
|
.Sh FILES
|
|
.Bl -tag -width /dev/*crt*? -compact
|
|
.It Pa /dev/fb*
|
|
generic framebuffer pseudo-device
|
|
.El
|
|
.Sh ERRORS
|
|
.Bl -tag -width [EINVAL]
|
|
.It Bq Er ENODEV
|
|
no such device.
|
|
.It Bq Er EBUSY
|
|
Another process has the device open.
|
|
.It Bq Er EINVAL
|
|
Invalid ioctl specification.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr cfb 4 ,
|
|
.Xr mfb 4 ,
|
|
.Xr rcons 4 ,
|
|
.Xr sfb 4 ,
|
|
.Xr pm 4 ,
|
|
.Xr px 4 ,
|
|
.Xr xcfb 4
|