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      1  1.3  christos /*	$NetBSD: devopen.c,v 1.3 2005/12/11 12:19:29 christos Exp $	*/
      2  1.1  fredette 
      3  1.1  fredette 
      4  1.1  fredette #include <sys/types.h>
      5  1.1  fredette #include <machine/mon.h>
      6  1.1  fredette 
      7  1.1  fredette #include <stand.h>
      8  1.1  fredette #include "libsa.h"
      9  1.1  fredette 
     10  1.1  fredette /*
     11  1.1  fredette  * Open the device named by the combined device/file name
     12  1.1  fredette  * given as the "fname" arg, something like: "sd()netbsd"
     13  1.1  fredette  *
     14  1.1  fredette  * However, Sun PROMs don't really let you choose which
     15  1.1  fredette  * device you will talk to.  You can only open the device
     16  1.1  fredette  * that was used to load the boot program.  Therefore, we
     17  1.1  fredette  * do not accept a "device" part in the "fname" string.
     18  1.1  fredette  * Pass the PROM device name to open in case it needs it.
     19  1.1  fredette  */
     20  1.2       chs int
     21  1.2       chs devopen(struct open_file *f, const char *fname, char **file)
     22  1.1  fredette {
     23  1.1  fredette 	struct devsw *dp;
     24  1.1  fredette 	int error;
     25  1.1  fredette 
     26  1.1  fredette 	*file = (char*)fname;
     27  1.1  fredette 	dp = &devsw[0];
     28  1.1  fredette 	f->f_dev = dp;
     29  1.1  fredette 	error = (*dp->dv_open)(f, prom_bootdev);
     30  1.1  fredette 
     31  1.1  fredette 	return (error);
     32  1.1  fredette }
     33