FreeBSD/Linux Kernel Cross Reference
sys/dev/videomode/modelines2c.awk

     #! /usr/bin/awk -f
     #       $NetBSD: modelines2c.awk,v 1.4 2006/10/26 23:19:50 bjh21 Exp $
     #       $FreeBSD$
     #
     # Copyright (c) 2006 Itronix Inc.
     # All rights reserved.
     #
     # Written by Garrett D'Amore for Itronix Inc.
     #
    # 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. The name of Itronix Inc. may not be used to endorse
    #    or promote products derived from this software without specific
    #    prior written permission.
    #
    # THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``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 ITRONIX INC. 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.
    #
    
    BEGIN {
            nmodes = 0;
    }
    
    NR == 1 {
            split($0,v,"$");
    
            VERSION=v[2];
    
            printf("/*\t$NetBSD" "$\t*/\n\n");
            printf("/*\n") ;
            printf(" * THIS FILE AUTOMATICALLY GENERATED.  DO NOT EDIT.\n");
            printf(" *\n");
            printf(" * generated from:\n");
            printf(" *\t%s\n", VERSION);
            printf(" */\n\n");
    
            printf("#include <sys/cdefs.h>\n");
            printf("__KERNEL_RCSID(0, \"$NetBSD" "$\");\n\n");
    
            printf("#include <dev/videomode/videomode.h>\n\n");
    
            printf("/*\n");
            printf(" * These macros help the modelines below fit on one line.\n");
            printf(" */\n");
            printf("#define HP VID_PHSYNC\n");
            printf("#define HN VID_NHSYNC\n");
            printf("#define VP VID_PVSYNC\n");
            printf("#define VN VID_NVSYNC\n");
            printf("#define I VID_INTERLACE\n");
            printf("#define DS VID_DBLSCAN\n");
            printf("\n");
    
            printf("#define M(nm,hr,vr,clk,hs,he,ht,vs,ve,vt,f) \\\n");
            printf("\t{ clk, hr, hs, he, ht, vr, vs, ve, vt, f, nm } \n\n");
    
            printf("const struct videomode videomode_list[] = {\n");
    
            next
    }
    
    (/^ModeLine/) {
            dotclock =   $3;
    
            hdisplay =   $4;
            hsyncstart = $5;
            hsyncend =   $6;
            htotal =     $7;
            
            vdisplay =   $8;
            vsyncstart = $9;
            vsyncend =   $10;
            vtotal =     $11;
    
            macro =      "MODE";
            iflag =      "";
            iflags =     "";
            hflags =     "HP";
            vflags =     "VP";
    
            if ($12 ~ "^-")
                    hflags = "HN";
    
            if ($13 ~ "^-")
                    vflags = "VN";
   
           ifactor=1.0;
           if ($14 ~ "[Ii][Nn][Tt][Ee][Rr][Ll][Aa][Cc][Ee]") {
                   iflag = "i";
                   iflags = "|I";
                   ifactor = 2.0;
           }
   
           # We truncate the vrefresh figure, but some mode descriptions rely
           # on rounding, so we can't win here.  Adding an additional .1
           # compensates to some extent.
   
           hrefresh= (dotclock * 1000000) / htotal;
           vrefresh= int(((hrefresh * ifactor) / vtotal) + .1);
   
           modestr = sprintf("%dx%dx%d%s", hdisplay, vdisplay, vrefresh, iflag);
   
   #       printf("/* %dx%d%s refresh %d Hz, hsync %d kHz */\n",
   #           hdisplay, vdisplay, iflag, vrefresh, hrefresh/1000);
           printf("M(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,%d,%s),\n",
               modestr,
               hdisplay, vdisplay, dotclock * 1000,
               hsyncstart, hsyncend, htotal,
               vsyncstart, vsyncend, vtotal, hflags "|" vflags iflags);
   
           modestr = sprintf("%dx%dx%d%s",
               hdisplay/2 , vdisplay/2, vrefresh, iflag);
   
           dmodes[nmodes]=sprintf("M(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,%d,%s),",
               modestr,
               hdisplay/2, vdisplay/2, dotclock * 1000 / 2,
               hsyncstart/2, hsyncend/2, htotal/2,
               vsyncstart/2, vsyncend/2, vtotal/2,
               hflags "|" vflags "|DS" iflags);
   
           nmodes = nmodes + 1
   
   }
   
   END {
   
           printf("\n/* Derived Double Scan Modes */\n\n");
   
           for ( i = 0; i < nmodes; i++ )
           {
                   print dmodes[i]; 
           }
   
           printf("};\n\n");
           printf("const int videomode_count = %d;\n", nmodes);
   }

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