The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/i386/conf/gethints.awk

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    1 #! /usr/bin/awk -f
    2 #
    3 # This is a transition aid. It extracts old-style configuration information
    4 # from a config file and writes an equivalent device.hints file to stdout.
    5 # You can use that with loader(8) or statically compile it in with the
    6 # 'hints' directive.  See how GENERIC and GENERIC.hints fit together for
    7 # a static example.  You should use loader(8) if at all possible.
    8 #
    9 # $FreeBSD: releng/5.4/sys/i386/conf/gethints.awk 100696 2002-07-26 03:52:30Z peter $
   10 
   11 # skip commented lines, empty lines and not "device" lines
   12 /^[ \t]*#/ || /^[ \t]*$/ || !/[ \t]*device/ { next; }
   13 
   14 # input format :
   15 #    device <name><unit> at <controler>[?] [key [val]]...
   16 # possible keys are :
   17 #    disable, port #, irq #, drq #, drive #, iomem #, iosiz #,
   18 #    flags #, bus #, target #, unit #.
   19 # output format :
   20 #    hint.<name>.<unit>.<key>=<val>
   21 # mapped keys are :
   22 #    iomem -> maddr, iosiz -> msize.
   23 {
   24         gsub ("#.*", "");               # delete comments
   25         gsub ("\"", "");                # and double-quotes
   26         nameunit = $2;                  # <name><unit>
   27         at = $3;                        # at
   28         controler = $4;                 # <controler>[?]
   29         rest = 5;                       # optional keys begin at indice 5
   30         if (at != "at" || controler == "")
   31                 next;                   # skip devices w/o controlers
   32         name = nameunit;
   33         sub ("[0-9]*$", "", name);      # get the name
   34         unit = nameunit;
   35         sub ("^" name, "", unit);       # and the unit
   36         sub ("\?$", "", controler);
   37         printf "hint.%s.%s.at=\"%s\"\n", name, unit, controler;
   38         # for each keys, if any ?
   39         for (key = $rest; rest <= NF; key = $(++rest)) {
   40                 # skip auto-detect keys (the one w/ a ?)
   41                 if (key == "port?" || key == "drq?" || key == "irq?" || \
   42                     key == "iomem?" || key == "iosiz?")
   43                         continue;
   44                 # disable has no value, so, give it one
   45                 if (key == "disable") {
   46                         printf "hint.%s.%s.disabled=\"1\"\n", name, unit;
   47                         continue;
   48                 }
   49                 # recognized keys
   50                 if (key == "port" || key == "irq" || key == "drq" || \
   51                     key == "drive" || key == "iomem" || key == "iosiz" || \
   52                     key == "flags" || key == "bus" || key == "target" || \
   53                     key == "unit") {
   54                         val = $(++rest);
   55                         if (val == "?") # has above
   56                                 continue;
   57                         if (key == "port") {
   58                                 # map port macros to static values
   59                                 sub ("IO_AHA0", "0x330", val);
   60                                 sub ("IO_AHA1", "0x334", val);
   61                                 sub ("IO_ASC1", "0x3EB", val);
   62                                 sub ("IO_ASC2", "0x22B", val);
   63                                 sub ("IO_ASC3", "0x26B", val);
   64                                 sub ("IO_ASC4", "0x2AB", val);
   65                                 sub ("IO_ASC5", "0x2EB", val);
   66                                 sub ("IO_ASC6", "0x32B", val);
   67                                 sub ("IO_ASC7", "0x36B", val);
   68                                 sub ("IO_ASC8", "0x3AB", val);
   69                                 sub ("IO_BT0", "0x330", val);
   70                                 sub ("IO_BT1", "0x334", val);
   71                                 sub ("IO_CGA", "0x3D0", val);
   72                                 sub ("IO_COM1", "0x3F8", val);
   73                                 sub ("IO_COM2", "0x2F8", val);
   74                                 sub ("IO_COM3", "0x3E8", val);
   75                                 sub ("IO_COM4", "0x2E8", val);
   76                                 sub ("IO_DMA1", "0x000", val);
   77                                 sub ("IO_DMA2", "0x0C0", val);
   78                                 sub ("IO_DMAPG", "0x080", val);
   79                                 sub ("IO_FD1", "0x3F0", val);
   80                                 sub ("IO_FD2", "0x370", val);
   81                                 sub ("IO_GAME", "0x201", val);
   82                                 sub ("IO_GSC1", "0x270", val);
   83                                 sub ("IO_GSC2", "0x2E0", val);
   84                                 sub ("IO_GSC3", "0x370", val);
   85                                 sub ("IO_GSC4", "0x3E0", val);
   86                                 sub ("IO_ICU1", "0x020", val);
   87                                 sub ("IO_ICU2", "0x0A0", val);
   88                                 sub ("IO_KBD", "0x060", val);
   89                                 sub ("IO_LPT1", "0x378", val);
   90                                 sub ("IO_LPT2", "0x278", val);
   91                                 sub ("IO_LPT3", "0x3BC", val);
   92                                 sub ("IO_MDA", "0x3B0", val);
   93                                 sub ("IO_NMI", "0x070", val);
   94                                 sub ("IO_NPX", "0x0F0", val);
   95                                 sub ("IO_PMP1", "0x026", val);
   96                                 sub ("IO_PMP2", "0x178", val);
   97                                 sub ("IO_PPI", "0x061", val);
   98                                 sub ("IO_RTC", "0x070", val);
   99                                 sub ("IO_TIMER1", "0x040", val);
  100                                 sub ("IO_TIMER2", "0x048", val);
  101                                 sub ("IO_UHA0", "0x330", val);
  102                                 sub ("IO_VGA", "0x3C0", val);
  103                                 sub ("IO_WD1", "0x1F0", val);
  104                                 sub ("IO_WD2", "0x170", val);
  105                         } else {
  106                                 # map key names
  107                                 sub ("iomem", "maddr", key);
  108                                 sub ("iosiz", "msize", key);
  109                         }
  110                         printf "hint.%s.%s.%s=\"%s\"\n", name, unit, key, val;
  111                         continue;
  112                 }
  113                 printf ("unrecognized config token '%s:%s' on line %s\n",
  114                         rest, key, NR); # > "/dev/stderr";
  115         }
  116 }

Cache object: f6b04dd8b07d22cbe0ac5baceea5a49f


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