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
parse(char * argv[],char * kernelname)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