1 /* $NetBSD: rom.c,v 1.11 2022/04/25 15:06:34 mlelstv Exp $ */
2 /*
3 * Copyright (c) 1996 Ludd, University of Lule}, Sweden.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to Ludd by
7 * Bertram Barth.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 #include <sys/param.h>
31 #include <sys/reboot.h>
32 #include <sys/disklabel.h>
33
34 #define RF_PROTECTED_SECTORS 64 /* XXX <dev/raidframe/raidframevar.h> */
35
36 #include <lib/libsa/stand.h>
37 #include <lib/libsa/ufs.h>
38
39 #include <lib/libkern/libkern.h>
40
41 #include "../include/pte.h"
42 #include "../include/sid.h"
43 #include "../include/mtpr.h"
44 #include "../include/reg.h"
45 #include "../include/rpb.h"
46
47 #include "data.h"
48 #include "vaxstand.h"
49
50 static struct disklabel romlabel;
51 static char io_buf[DEV_BSIZE];
52 static struct bqo *bqo;
53 static int dpart, dunit;
54
55 int
romopen(struct open_file * f,int adapt,int ctlr,int unit,int part)56 romopen(struct open_file *f, int adapt, int ctlr, int unit, int part)
57 {
58 char *msg;
59 struct disklabel *lp = &romlabel;
60 size_t i;
61 int err;
62
63 bqo = (void *)bootrpb.iovec;
64
65 memset(lp, 0, sizeof(struct disklabel));
66 dunit = unit;
67 dpart = part;
68
69 err = romstrategy(0, F_READ, LABELSECTOR, DEV_BSIZE, io_buf, &i);
70 if (err) {
71 printf("reading disklabel: %s\n",strerror(err));
72 return 0;
73 }
74 msg = getdisklabel(io_buf+LABELOFFSET, lp);
75 if (msg)
76 printf("getdisklabel: %s\n",msg);
77 return(0);
78 }
79
80 int romwrite_uvax(int, int, void *, struct rpb *);
81 int romread_uvax(int, int, void *, struct rpb *);
82
83 int
romstrategy(void * f,int func,daddr_t dblk,size_t size,void * buf,size_t * rsize)84 romstrategy (void *f, int func, daddr_t dblk, size_t size, void *buf, size_t *rsize)
85 {
86 struct disklabel *lp;
87 int block;
88
89 lp = &romlabel;
90 block = dblk + lp->d_partitions[dpart].p_offset;
91 if (dunit >= 0 && dunit < 10)
92 bootrpb.unit = dunit;
93 if (lp->d_partitions[dpart].p_fstype == FS_RAID)
94 block += RF_PROTECTED_SECTORS;
95
96 if (func == F_WRITE)
97 romwrite_uvax(block, size, buf, &bootrpb);
98 else
99 romread_uvax(block, size, buf, &bootrpb);
100
101 *rsize = size;
102 return 0;
103 }
104
105 int
romioctl(struct open_file * f,u_long cmd,void * data)106 romioctl(struct open_file *f, u_long cmd, void *data)
107 {
108 return ENOTTY;
109 }
110