Annotation of sys/arch/amd64/include/ioctl_fd.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: ioctl_fd.h,v 1.1 2005/09/19 01:28:04 deraadt Exp $ */
2:
3: /*
4: * Copyright (C) 1992-1994 by Joerg Wunsch, Dresden
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(S) ``AS IS'' AND ANY
17: * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE
20: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
22: * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
23: * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
24: * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
26: * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
27: * DAMAGE.
28: *
29: * From: Id: ioctl_fd.h,v 1.7 1994/10/30 19:17:39 joerg Exp
30: */
31:
32: #ifndef _AMD64_IOCTL_FD_H_
33: #define _AMD64_IOCTL_FD_H_
34:
35: #include <sys/ioccom.h>
36:
37: #define FD_FORMAT_VERSION 110 /* used to validate before formatting */
38: #define FD_MAX_NSEC 36 /* highest known number of spt - allow for */
39: /* 2.88 MB drives */
40:
41: struct fd_formb {
42: int format_version; /* == FD_FORMAT_VERSION */
43: int cyl, head;
44: int transfer_rate; /* fdreg.h: FDC_???KBPS */
45:
46: union {
47: struct fd_form_data {
48: /*
49: * DO NOT CHANGE THE LAYOUT OF THIS STRUCTS
50: * it is hardware-dependant since it exactly
51: * matches the byte sequence to write to FDC
52: * during its `format track' operation
53: */
54: u_char secshift; /* 0 -> 128, ...; usually 2 -> 512 */
55: u_char nsecs; /* must be <= FD_MAX_NSEC */
56: u_char gaplen; /* GAP 3 length; usually 84 */
57: u_char fillbyte; /* usually 0xf6 */
58: struct fd_idfield_data {
59: /*
60: * data to write into id fields;
61: * for obscure formats, they mustn't match
62: * the real values (but mostly do)
63: */
64: u_char cylno; /* 0 thru 79 (or 39) */
65: u_char headno; /* 0, or 1 */
66: u_char secno; /* starting at 1! */
67: u_char secsize; /* usually 2 */
68: } idfields[FD_MAX_NSEC]; /* 0 <= idx < nsecs used */
69: } structured;
70: u_char raw[1]; /* to have continuous indexed access */
71: } format_info;
72: };
73:
74: /* make life easier */
75: # define fd_formb_secshift format_info.structured.secshift
76: # define fd_formb_nsecs format_info.structured.nsecs
77: # define fd_formb_gaplen format_info.structured.gaplen
78: # define fd_formb_fillbyte format_info.structured.fillbyte
79: /* these data must be filled in for(i = 0; i < fd_formb_nsecs; i++) */
80: # define fd_formb_cylno(i) format_info.structured.idfields[i].cylno
81: # define fd_formb_headno(i) format_info.structured.idfields[i].headno
82: # define fd_formb_secno(i) format_info.structured.idfields[i].secno
83: # define fd_formb_secsize(i) format_info.structured.idfields[i].secsize
84:
85: /*
86: * Floppies come in various flavors, e.g., 1.2MB vs 1.44MB; here is how
87: * we tell them apart.
88: */
89: struct fd_type {
90: int sectrac; /* sectors per track */
91: int heads; /* number of heads */
92: int seccyl; /* sectors per cylinder */
93: int secsize; /* size code for sectors */
94: int datalen; /* data len when secsize = 0 */
95: int steprate; /* step rate and head unload time */
96: int gap1; /* gap len between sectors */
97: int gap2; /* formatting gap */
98: int tracks; /* total num of tracks */
99: int size; /* size of disk in sectors */
100: int step; /* steps per cylinder */
101: int rate; /* transfer speed code */
102: char *name;
103: };
104:
105:
106: #define FD_FORM _IOW('F', 61, struct fd_formb) /* format a track */
107: #define FD_GTYPE _IOR('F', 62, struct fd_type) /* get drive type */
108: #define FD_STYPE _IOW('F', 63, struct fd_type) /* set drive type */
109:
110: #define FD_GOPTS _IOR('F', 64, int) /* drive options, see below */
111: #define FD_SOPTS _IOW('F', 65, int)
112:
113: #define FDOPT_NORETRY 0x0001 /* no retries on failure (cleared on close) */
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 /* !_AMD64_IOCTL_FD_H__ */
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