1 /* $OpenBSD: ioctl_fd.h,v 1.2 2011/03/23 16:54:34 pirofti 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 _MACHINE_IOCTL_FD_H_ 33 #define _MACHINE_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 /* !_MACHINE_IOCTL_FD_H__ */ 131