xref: /freebsd/usr.sbin/fdread/fdutil.c (revision 5521ff5a4d1929056e7ffc982fac3341ca54df7c)
1 /*
2  * Copyright (c) 2001 Joerg Wunsch
3  *
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #include <sys/types.h>
30 #include <sys/fdcio.h>
31 
32 #include <stdio.h>
33 #include <string.h>
34 
35 #include <dev/ic/nec765.h>
36 
37 #include "fdutil.h"
38 
39 void
40 printstatus(struct fdc_status *fdcsp, int terse)
41 {
42 	char msgbuf[100];
43 
44 	if (!terse)
45 		fprintf(stderr,
46 		"\nFDC status ST0=%#x ST1=%#x ST2=%#x C=%u H=%u R=%u N=%u:\n",
47 			fdcsp->status[0] & 0xff,
48 			fdcsp->status[1] & 0xff,
49 			fdcsp->status[2] & 0xff,
50 			fdcsp->status[3] & 0xff,
51 			fdcsp->status[4] & 0xff,
52 			fdcsp->status[5] & 0xff,
53 			fdcsp->status[6] & 0xff);
54 
55 	if ((fdcsp->status[0] & NE7_ST0_IC_RC) != NE7_ST0_IC_AT) {
56 		sprintf(msgbuf, "unexcpted interrupt code %#x",
57 			fdcsp->status[0] & NE7_ST0_IC_RC);
58 	} else {
59 		strcpy(msgbuf, "unexpected error code in ST1/ST2");
60 
61 		if (fdcsp->status[1] & NE7_ST1_EN)
62 			strcpy(msgbuf, "end of cylinder (wrong format)");
63 		else if (fdcsp->status[1] & NE7_ST1_DE) {
64 			if (fdcsp->status[2] & NE7_ST2_DD)
65 				strcpy(msgbuf, "CRC error in data field");
66 			else
67 				strcpy(msgbuf, "CRC error in ID field");
68 		} else if (fdcsp->status[1] & NE7_ST1_MA) {
69 			if (fdcsp->status[2] & NE7_ST2_MD)
70 				strcpy(msgbuf, "no address mark in data field");
71 			else
72 				strcpy(msgbuf, "no address mark in ID field");
73 		} else if (fdcsp->status[2] & NE7_ST2_WC)
74 			strcpy(msgbuf, "wrong cylinder (format mismatch)");
75 		else if (fdcsp->status[1] & NE7_ST1_ND)
76 			strcpy(msgbuf, "no data (sector not found)");
77 	}
78 	fputs(msgbuf, stderr);
79 }
80 
81