1.\" $NetBSD: grfconfig.8,v 1.7 1997/10/20 14:31:18 veego Exp $ 2.\" 3.\" Copyright (c) 1997 The NetBSD Foundation, Inc. 4.\" All rights reserved. 5.\" 6.\" This code is derived from software contributed to The NetBSD Foundation 7.\" by Ezra Story and Bernd Ernesti. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 3. All advertising materials mentioning features or use of this software 18.\" must display the following acknowledgement: 19.\" This product includes software developed by the NetBSD 20.\" Foundation, Inc. and its contributors. 21.\" 4. Neither the name of The NetBSD Foundation nor the names of its 22.\" contributors may be used to endorse or promote products derived 23.\" from this software without specific prior written permission. 24.\" 25.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35.\" POSSIBILITY OF SUCH DAMAGE. 36.\" 37.Dd October 7, 1994 38.Dt GRFCONFIG 8 amiga 39.Os NetBSD 40.Sh NAME 41.Nm grfconfig 42.Nd alter grf device screen mode definitions at run time 43.Sh SYNOPSIS 44.Nm "" 45.Op Fl r 46.Ar device 47.Op Ar file 48.Sh DESCRIPTION 49.Nm "" 50is used to change or view the screen mode definition list contained 51in a grf device. You may alter the console screen definition as well 52as the definitions for the graphic screen. The console will automatically 53reinitialize itself to the new screen mode. 54.Pp 55The following flags and arguments are interpreted by 56.Nm "" : 57.Bl -tag -width indent 58.It Fl r 59Print out a raw listing of the mode definitions instead of the 60pretty list normally shown. 61.It Ar device 62The grf device to manipulate. This argument is required. 63.It Ar file 64The file which contains the mode definitions. If this argument 65is not specified, 66.Nm "" 67will print out of a list of the modes currently loaded into 68the grf device. 69.Pp 70.Sh MODE DEFINITION FILE 71The mode definitions are taken from a file which has lines of the format: 72.Pp 73num clk wid hi dep hbs hss hse ht vbs vss vse vt flags 74.Pp 75.Bl -tag -width indent 76.It Ar num 77The mode number or 'c' for the console mode. 78.It Ar clk 79The pixel clock in Hz. 80.It Ar wid 81The screen mode's width. 82.It Ar hi 83The screen mode's height. 84.It Ar dep 85The bitdepth of the mode. 86.It Ar hbs hss hse ht 87The horizontal timing parameters for the mode in pixel values. All the 88values are relative to the end of the horizontal blank (beginning of the 89displayed area). 90.It Ar vbs vss vse vt 91The vertical timing paramters for the mode in line values. All the 92values are relative to the end of vertical blank (beginning of the displayed 93area). 94.It Ar flags 95By default every mode uses negative horizontal and vertical sync pulses, 96it is non-interlaced and does not use scandoubling. 97.Pp 98.Bl -tag -width sync-on-green -offset indent 99.It default 100Use the default flags: -hsync -vsync 101.It doublescan 102Doublescan mode 103.It interlace 104Interlace mode 105.It +hsync 106Positive horizontal sync pulses 107.It -hsync 108Negative horizontal sync pulses 109.It +vsync 110Positive vertical sync pulses 111.It -vsync 112Negative vertical sync pulses 113.It sync-on-green 114Composite sync on green 115.Pp 116.El 117.Pp 118.El 119.Pp 120.nf 121 ------------------------------------------------------ 122 | ^ | 123 | vse | 124 | (0,0) | 125 | *----------------------------------- | 126 | | ^ ^ | | 127 | | vbe ! | | 128 | | ! | | 129 | | ! | | 130 |<-hse |<-hbe ! |<-hbs | | | 131 | | ! | hss->| hse->| hbe->| 132 | | hi | | | | 133 | | ! | | 134 | | ! | | 135 | |<============ wid =========+=====>| | 136 | | ! | | 137 | | ! | | 138 | | ! | | 139 | | v | | 140 | ------------------------------------ | 141 | ^ | 142 | vbs | 143 | | 144 ------------------------------------------------------ 145 ^ 146 vss 147 - ------- - 148 ^ 149 vse 150 - ------- - 151 ^ 152 vbe 153 154 155.Sh SEE ALSO 156.Xr console 4 , 157.Xr iteconfig 8 , 158.Xr grfcl 4 , 159.Xr grfcv 4 , 160.Xr grfcv3d 4 , 161.Xr grfet 4 , 162.Xr grfrh 4 , 163.Xr grfrt 4 , 164.Xr grful 4 165.Sh HISTORY 166The 167.Nm "" 168command first appeared in 169.Nx 1.0 170.Pp 171The mode definition file changed two times. 172.Pp 173In 174.Nx 1.0 175all horizontal values were videoclock cycle values instead of pixel values: 176.Pp 177 num clk wid hi dep hbs hss hse hbe ht vbs vss vse vbe vt 178.br 179 1 31000000 640 480 8 80 86 96 102 104 480 489 492 517 520 180 2 31000000 640 480 8 80 86 96 102 104 240 244 246 258 260 181 3 31000000 640 480 8 80 86 96 102 104 960 978 984 1034 1040 182.Pp 183In 184.Nx 1.1 185and 186.Nx 1.2 : 187.Pp 188 num clk wid hi dep hbs hss hse hbe ht vbs vss vse vbe vt 189.br 190 1 31000000 640 480 8 640 688 768 816 832 480 489 492 517 520 191 2 31000000 640 480 8 640 688 768 816 832 240 244 246 258 260 192 3 31000000 640 480 8 640 688 768 816 832 960 978 984 1034 1040 193.Pp 194the vertical values were used to select the interlace or doublescan mode. 195All vertical values were half the width for the interlace mode and twice 196the width for the doublescan mode. 197.Pp 198Beginning with 199.Nx 1.3 : 200.Pp 201 num clk wid hi dep hbs hss hse ht vbs vss vse vt flags 202.br 203 1 31000000 640 480 8 640 688 768 832 480 489 492 520 default 204 2 31000000 640 480 8 640 688 768 832 480 489 492 520 interlace 205 3 31000000 640 480 8 640 688 768 832 480 489 492 520 doublescan 206 4 31000000 640 480 8 640 688 768 832 480 489 492 520 +hsync +vsync 207.Pp 208hbe and vbe are computed in the grf drivers. 209.Pp 210.Sh BUGS 211.Nm "" 212can not set the modes for /dev/grf1, /dev/grf2 and /dev/grf4 213and it will not work for /dev/grf0. 214 215