Annotation of sys/arch/i386/include/ioctl_fd.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: ioctl_fd.h,v 1.3 1997/09/16 07:52:31 deraadt 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 _I386_IOCTL_FD_H_
34: #define _I386_IOCTL_FD_H_
35:
36: #include <sys/ioccom.h>
37:
38: #define FD_FORMAT_VERSION 110 /* used to validate before formatting */
39: #define FD_MAX_NSEC 36 /* highest known number of spt - allow for */
40: /* 2.88 MB drives */
41:
42: struct fd_formb {
43: int format_version; /* == FD_FORMAT_VERSION */
44: int cyl, head;
45: int transfer_rate; /* fdreg.h: FDC_???KBPS */
46:
47: union {
48: struct fd_form_data {
49: /*
50: * DO NOT CHANGE THE LAYOUT OF THIS STRUCTS
51: * it is hardware-dependant since it exactly
52: * matches the byte sequence to write to FDC
53: * during its `format track' operation
54: */
55: u_char secshift; /* 0 -> 128, ...; usually 2 -> 512 */
56: u_char nsecs; /* must be <= FD_MAX_NSEC */
57: u_char gaplen; /* GAP 3 length; usually 84 */
58: u_char fillbyte; /* usually 0xf6 */
59: struct fd_idfield_data {
60: /*
61: * data to write into id fields;
62: * for obscure formats, they mustn't match
63: * the real values (but mostly do)
64: */
65: u_char cylno; /* 0 thru 79 (or 39) */
66: u_char headno; /* 0, or 1 */
67: u_char secno; /* starting at 1! */
68: u_char secsize; /* usually 2 */
69: } idfields[FD_MAX_NSEC]; /* 0 <= idx < nsecs used */
70: } structured;
71: u_char raw[1]; /* to have continuous indexed access */
72: } format_info;
73: };
74:
75: /* make life easier */
76: # define fd_formb_secshift format_info.structured.secshift
77: # define fd_formb_nsecs format_info.structured.nsecs
78: # define fd_formb_gaplen format_info.structured.gaplen
79: # define fd_formb_fillbyte format_info.structured.fillbyte
80: /* these data must be filled in for(i = 0; i < fd_formb_nsecs; i++) */
81: # define fd_formb_cylno(i) format_info.structured.idfields[i].cylno
82: # define fd_formb_headno(i) format_info.structured.idfields[i].headno
83: # define fd_formb_secno(i) format_info.structured.idfields[i].secno
84: # define fd_formb_secsize(i) format_info.structured.idfields[i].secsize
85:
86: /*
87: * Floppies come in various flavors, e.g., 1.2MB vs 1.44MB; here is how
88: * we tell them apart.
89: */
90: struct fd_type {
91: int sectrac; /* sectors per track */
92: int heads; /* number of heads */
93: int seccyl; /* sectors per cylinder */
94: int secsize; /* size code for sectors */
95: int datalen; /* data len when secsize = 0 */
96: int steprate; /* step rate and head unload time */
97: int gap1; /* gap len between sectors */
98: int gap2; /* formatting gap */
99: int tracks; /* total num of tracks */
100: int size; /* size of disk in sectors */
101: int step; /* steps per cylinder */
102: int rate; /* transfer speed code */
103: char *name;
104: };
105:
106:
107: #define FD_FORM _IOW('F', 61, struct fd_formb) /* format a track */
108: #define FD_GTYPE _IOR('F', 62, struct fd_type) /* get drive type */
109: #define FD_STYPE _IOW('F', 63, struct fd_type) /* set drive type */
110:
111: #define FD_GOPTS _IOR('F', 64, int) /* drive options, see below */
112: #define FD_SOPTS _IOW('F', 65, int)
113:
114: #define FDOPT_NORETRY 0x0001 /* no retries on failure (cleared on close) */
115:
116: /*
117: * The following definitions duplicate those in sys/i386/isa/fdreg.h
118: * They are here since their values are to be used in the above
119: * structure when formatting a floppy. For very obvious reasons, both
120: * definitions must match ;-)
121: */
122: #ifndef FDC_500KBPS
123: #define FDC_500KBPS 0x00 /* 500KBPS MFM drive transfer rate */
124: #define FDC_300KBPS 0x01 /* 300KBPS MFM drive transfer rate */
125: #define FDC_250KBPS 0x02 /* 250KBPS MFM drive transfer rate */
126: #define FDC_125KBPS 0x03 /* 125KBPS FM drive transfer rate */
127: /* for some controllers 1MPBS instead */
128: #endif /* FDC_500KBPS */
129:
130:
131: #endif /* !_I386_IOCTL_FD_H__ */
CVSweb