Home | History | Annotate | Line # | Download | only in common 
      1 /*	$NetBSD: iris_parse.c,v 1.1 2019/01/12 16:44:47 tsutsui Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2018 Naruaki Etomi
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 /*
     29  * Silicon Graphics "IRIS" series MIPS processors machine bootloader.
     30  * Parse argv argument vector.
     31  */
     32 
     33 #include <lib/libsa/stand.h>
     34 #include <lib/libkern/libkern.h>
     35 
     36 #include "iris_machdep.h"
     37 #include "iris_scsivar.h"
     38 
     39 uint8_t scsi_ctlr = 255, scsi_id = 255, scsi_part = 255;
     40 
     41 void
     42 parse(char *argv[], char *kernelname)
     43 {
     44 	char disksetting[1 + 32];
     45 	char bootpath[1 + 64];
     46 	int i;
     47 
     48 	char *ep = strcpy(bootpath, argv[1]);
     49 	ep = strrchr(bootpath, '/');
     50 	if (ep == NULL)
     51 		again();
     52 
     53 	strcpy(kernelname, ep + 1);
     54 
     55 	i =  ep - bootpath;
     56 	bootpath[i - 1] = '\0';
     57 
     58 	ep = strchr(bootpath, '(');
     59 	if (ep == NULL)
     60 		/* horrible! */
     61 		again();
     62 
     63 	/* ctlr,id,part */
     64 	strcpy(disksetting, ep + 1);
     65 
     66 	i = 0;
     67 
     68 	while (disksetting[i] != '\0') {
     69 		if (disksetting[i] >= '0' && disksetting[i] <= '9') {
     70 			if (i == 0)
     71 				scsi_ctlr = atoi(&disksetting[i]);
     72 			if (i == 2)
     73 				scsi_id = atoi(&disksetting[i]);
     74 			if (i == 4)
     75 				scsi_part = atoi(&disksetting[i]);
     76 		}
     77 		i++;
     78 	}
     79 
     80 	if ((scsi_ctlr == 255) || (scsi_id == 255) || (scsi_part == 255))
     81 		again();
     82 }
     83