1/* $OpenBSD: ioctl_fd.h,v 1.2 2011/03/23 16:54:37 pirofti Exp $ */
2/* from: ioctl_fd.h,v 1.4 1995/06/29 03:49:32 jtk Exp */
3
4/*
5 * Copyright (C) 1992-1994 by Joerg Wunsch, Dresden
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
23 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
25 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
27 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
28 * DAMAGE.
29 *
30 * From: Id: ioctl_fd.h,v 1.7 1994/10/30 19:17:39 joerg Exp
31 */
32
33#ifndef _MACHINE_IOCTL_FD_H_
34#define _MACHINE_IOCTL_FD_H_
35
36#define FD_FORMAT_VERSION 110 /* used to validate before formatting */
37#define FD_MAX_NSEC 36 /* highest known number of spt - allow for */
38 /* 2.88 MB drives */
39
40struct fd_formb {
41 int format_version; /* == FD_FORMAT_VERSION */
42 int cyl, head;
43 int transfer_rate; /* fdreg.h: FDC_???KBPS */
44
45 union {
46 struct fd_form_data {
47 /*
48 * DO NOT CHANGE THE LAYOUT OF THIS STRUCTS
49 * it is hardware-dependant since it exactly
50 * matches the byte sequence to write to FDC
51 * during its `format track' operation
52 */
53 u_char secshift; /* 0 -> 128, ...; usually 2 -> 512 */
54 u_char nsecs; /* must be <= FD_MAX_NSEC */
55 u_char gaplen; /* GAP 3 length; usually 84 */
56 u_char fillbyte; /* usually 0xf6 */
57 struct fd_idfield_data {
58 /*
59 * data to write into id fields;
60 * for obscure formats, they mustn't match
61 * the real values (but mostly do)
62 */
63 u_char cylno; /* 0 thru 79 (or 39) */
64 u_char headno; /* 0, or 1 */
65 u_char secno; /* starting at 1! */
66 u_char secsize; /* usually 2 */
67 } idfields[FD_MAX_NSEC]; /* 0 <= idx < nsecs used */
68 } structured;
69 u_char raw[1]; /* to have continuous indexed access */
70 } format_info;
71};
72
73/* make life easier */
74# define fd_formb_secshift format_info.structured.secshift
75# define fd_formb_nsecs format_info.structured.nsecs
76# define fd_formb_gaplen format_info.structured.gaplen
77# define fd_formb_fillbyte format_info.structured.fillbyte
78/* these data must be filled in for(i = 0; i < fd_formb_nsecs; i++) */
79# define fd_formb_cylno(i) format_info.structured.idfields[i].cylno
80# define fd_formb_headno(i) format_info.structured.idfields[i].headno
81# define fd_formb_secno(i) format_info.structured.idfields[i].secno
82# define fd_formb_secsize(i) format_info.structured.idfields[i].secsize
83
84/*
85 * Floppies come in various flavors, e.g., 1.2MB vs 1.44MB; here is how
86 * we tell them apart.
87 */
88struct fd_type {
89 int sectrac; /* sectors per track */
90 int heads; /* number of heads */
91 int seccyl; /* sectors per cylinder */
92 int secsize; /* size code for sectors */
93 int datalen; /* data len when secsize = 0 */
94 int steprate; /* step rate and head unload time */
95 int gap1; /* gap len between sectors */
96 int gap2; /* formatting gap */
97 int tracks; /* total num of tracks */
98 int size; /* size of disk in sectors */
99 int step; /* steps per cylinder */
100 int rate; /* transfer speed code */
101 char *name;
102};
103
104
105#define FD_FORM _IOW('F', 61, struct fd_formb) /* format a track */
106#define FD_GTYPE _IOR('F', 62, struct fd_type) /* get drive type */
107#define FD_STYPE _IOW('F', 63, struct fd_type) /* set drive type */
108
109#define FD_GOPTS _IOR('F', 64, int) /* drive options, see below */
110#define FD_SOPTS _IOW('F', 65, int)
111
112#define FDOPT_NORETRY 0x0001 /* no retries on failure (cleared on close) */
113#define FDOPT_SILENT 0x0002
114
115/*
116 * The following definitions duplicate those in sys/i386/isa/fdreg.h
117 * They are here since their values are to be used in the above
118 * structure when formatting a floppy. For very obvious reasons, both
119 * definitions must match ;-)
120 */
121#ifndef FDC_500KBPS
122#define FDC_500KBPS 0x00 /* 500KBPS MFM drive transfer rate */
123#define FDC_300KBPS 0x01 /* 300KBPS MFM drive transfer rate */
124#define FDC_250KBPS 0x02 /* 250KBPS MFM drive transfer rate */
125#define FDC_125KBPS 0x03 /* 125KBPS FM drive transfer rate */
126 /* for some controllers 1MPBS instead */
127#endif /* FDC_500KBPS */
128
129
130#endif /* !_MACHINE_IOCTL_FD_H__ */