ioctl_fd.h revision 1.1
1/* $OpenBSD: ioctl_fd.h,v 1.1 1996/06/20 07:51:36 downsj Exp $ */ 2/* $Id: ioctl_fd.h,v 1.1 1996/06/20 07:51:36 downsj 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#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) */ 113 114/* 115 * The following definitions duplicate those in sys/i386/isa/fdreg.h 116 * They are here since their values are to be used in the above 117 * structure when formatting a floppy. For very obvious reasons, both 118 * definitions must match ;-) 119 */ 120#ifndef FDC_500KBPS 121#define FDC_500KBPS 0x00 /* 500KBPS MFM drive transfer rate */ 122#define FDC_300KBPS 0x01 /* 300KBPS MFM drive transfer rate */ 123#define FDC_250KBPS 0x02 /* 250KBPS MFM drive transfer rate */ 124#define FDC_125KBPS 0x03 /* 125KBPS FM drive transfer rate */ 125 /* for some controllers 1MPBS instead */ 126#endif /* FDC_500KBPS */ 127 128 129#endif /* !_I386_IOCTL_FD_H__ */ 130