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Diffstat (limited to 'share/man/man4/man4.hp300/dv.4')
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diff --git a/share/man/man4/man4.hp300/dv.4 b/share/man/man4/man4.hp300/dv.4 new file mode 100644 index 00000000000..9dc597272ff --- /dev/null +++ b/share/man/man4/man4.hp300/dv.4 @@ -0,0 +1,174 @@ +.\" Copyright (c) 1990, 1991 The Regents of the University of California. +.\" All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" the Systems Programming Group of the University of Utah Computer +.\" Science Department. +.\" +.\" 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 University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University 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 REGENTS 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 REGENTS 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. +.\" +.\" from: @(#)dv.4 5.2 (Berkeley) 3/27/91 +.\" $Id: dv.4,v 1.1 1995/10/18 08:44:27 deraadt Exp $ +.\" +.Dd March 27, 1991 +.Dt DV 4 hp300 +.Os +.Sh NAME +.Nm dv +.Nd +.Tn HP98730 +``DaVinci'' device interface +.Sh DESCRIPTION +This driver is for the +.Tn HP98730 +and 98731 graphics device, also known as +the DaVinci. This driver has not been tested with all possible +combinations of frame buffer boards and scan boards installed in the device. +The driver merely checks for the existence of the device and does minimal set +up. +.Pp +The DaVinci can be configured at either the ``internal'' address +(frame buffer address 0x200000, control register space address 0x560000) +or at an external select code less than 32. +At the internal address it will be the ``preferred'' console device +(see +.Xr cons 4 ) . +The hardware installation manual describes the procedure for +setting these values. +.Pp +A user process communicates to the device initially by means of +.Xr ioctl 2 +calls. For the +.Tn HP-UX +.Xr ioctl +calls supported, refer to +.Tn HP-UX +manuals. +The +.Bx +calls supported are: +.Bl -tag -width indent +.It Dv GRFIOCGINFO +Get Graphics Info +.Pp +Get info about device, setting the entries in the +.Ar grfinfo +structure, as defined in +.Aq Pa hpdev/grfioctl.h . +For the standard 98730, the number of planes should be 4. The number of +colors would therefore be 15, excluding black. If one 98732A frame buffer +board is installed, there will still be 4 planes, with the 4 planes on the +colormap board becoming overlay planes. With each additional 98732 frame +buffer board 4 planes will be added up to a maximum of 32 planes total. +.It Dv GRFIOCON +Graphics On +.Pp +Turn graphics on by enabling +.Tn CRT +output. The screen will come on, displaying +whatever is in the frame buffer, using whatever colormap is in place. +.It Dv GRFIOCOFF +Graphics Off +.Pp +Turn graphics off by disabling output to the +.Tn CRT . +The frame buffer contents +are not affected. +.It Dv GRFIOCMAP +Map Device to user space +.Pp +Map in control registers and frame buffer space. Once the device file is +mapped, the frame buffer structure is accessible. The structure describing +the 98730 is defined in +.Aq Pa hpdev/grf_dvreg.h . +.El +.Sh EXAMPLE +This is a short segment of code showing how the device is opened and mapped +into user process address space assuming that it is +.Ql grf0 : +.Bd -literal -offset indent +struct dvboxfb *dvbox; +u_char *Addr, frame_buffer; +struct grfinfo gi; +int disp_fd; + +disp_fd = open("/dev/grf0",1); + +if (ioctl (disp_fd, GRFIOCGINFO, &gi) < 0) return -1; + +(void) ioctl (disp_fd, GRFIOCON, 0); + +Addr = (u_char *) 0; +if (ioctl (disp_fd, GRFIOCMAP, &Addr) < 0) { +(void) ioctl (disp_fd, GRFIOCOFF, 0); +return -1; +} +dvbox = (dvboxfb *) Addr; /* Control Registers */ +frame_buffer=(u_char *)Addr+gi.gd_regsize; /* Frame buffer memory */ +.Ed +.Sh FILES +.Bl -tag -width /dev/MAKEDEV.hpux -compact +.It Pa /dev/grf? +.Bx +special file +.It Pa /dev/crt98730 +.It Pa /dev/ocrt98730 +.Tn HP-UX +.Em starbase +special files +.It Pa /dev/MAKEDEV.hpux +script for creating +.Tn HP-UX +special files +.El +.Sh DIAGNOSTICS +None under +.Bx . +.Tn HP-UX +.Tn CE.utilities +must be used. +.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 ioctl 2 , +.Xr grf 4 . +.Sh HISTORY +The +.Nm +driver +.Ud +.Sh BUGS +Not tested for all configurations of scan board and frame buffer memory boards. |