sys/arch/sun68k/stand/libsa/devopen.c

   1 /*      $NetBSD: devopen.c,v 1.1.24.1 2005/01/24 08:35:03 skrll Exp $   */
   2
   3
   4 #include <sys/types.h>
   5 #include <machine/mon.h>
   6
   7 #include <stand.h>
   8 #include "libsa.h"
   9
  10 /*
  11  * Open the device named by the combined device/file name
  12  * given as the "fname" arg, something like: "sd()netbsd"
  13  *
  14  * However, Sun PROMs don't really let you choose which
  15  * device you will talk to.  You can only open the device
  16  * that was used to load the boot program.  Therefore, we
  17  * do not accept a "device" part in the "fname" string.
  18  * Pass the PROM device name to open in case it needs it.
  19  */
  20 int
  21 devopen(struct open_file *f, const char *fname, char **file)
  22 {
  23         struct devsw *dp;
  24         int error;
  25
  26         *file = (char*)fname;
  27         dp = &devsw[0];
  28         f->f_dev = dp;
  29         error = (*dp->dv_open)(f, prom_bootdev);
  30
  31         return (error);
  32 }