sys/src/cmd/aux/vga/et4000hwgc.c

   1 #include <u.h>
   2 #include <libc.h>
   3 #include <bio.h>
   4
   5 #include "pci.h"
   6 #include "vga.h"
   7
   8 static void
   9 init(Vga* vga, Ctlr* ctlr)
  10 {
  11         ctlr->flag |= Finit;
  12
  13         /*
  14          * Use of the hwgc requires
  15          *      a W32 chip,
  16          *      8-bits,
  17          *      not 2x8-bit mode.
  18          */
  19         if(cflag)
  20                 return;
  21         if(vga->ctlr == 0 || strncmp(vga->ctlr->name, "et4000-w32", 10))
  22                 cflag = 1;
  23         if(vga->mode->z != 8 || (ctlr->flag & Upclk2x8))
  24                 cflag = 1;
  25 }
  26
  27 Ctlr et4000hwgc = {
  28         "et4000hwgc",                   /* name */
  29         0,                              /* snarf */
  30         0,                              /* options */
  31         init,                           /* init */
  32         0,                              /* load */
  33         0,                              /* dump */
  34 };