fdcio.h revision 76588
1/* 2 * Copyright (C) 1992-1994,2001 by Joerg Wunsch, Dresden 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 19 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 20 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 21 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 22 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 24 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 25 * DAMAGE. 26 * 27 * $FreeBSD: head/sys/sys/fdcio.h 76588 2001-05-14 20:20:11Z joerg $ 28 */ 29 30#ifndef _MACHINE_IOCTL_FD_H_ 31#define _MACHINE_IOCTL_FD_H_ 32 33#ifndef _KERNEL 34#include <sys/types.h> 35#endif 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 42struct 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-dependent 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 86struct fd_type { 87 int sectrac; /* sectors per track */ 88 int secsize; /* size code for sectors */ 89 int datalen; /* data len when secsize = 0 */ 90 int gap; /* gap len between sectors */ 91 int tracks; /* total num of tracks */ 92 int size; /* size of disk in sectors */ 93 int steptrac; /* steps per cylinder */ 94 int trans; /* transfer speed code */ 95 int heads; /* number of heads */ 96 int f_gap; /* format gap len */ 97 int f_inter; /* format interleave factor */ 98}; 99 100struct fdc_status { 101 u_int status[7]; 102}; 103 104#define FD_FORM _IOW('F', 61, struct fd_formb) /* format a track */ 105#define FD_GTYPE _IOR('F', 62, struct fd_type) /* get drive type */ 106#define FD_STYPE _IOW('F', 63, struct fd_type) /* set drive type */ 107 108#define FD_GOPTS _IOR('F', 64, int) /* drive options, see below */ 109#define FD_SOPTS _IOW('F', 65, int) 110 111#define FD_DEBUG _IOW('F', 66, int) 112 113#define FD_CLRERR _IO('F', 67) /* clear error counter */ 114 115/* 116 * Obtain NE765 status registers. Only successful if there is 117 * a valid status stored in fdc->status[]. 118 */ 119#define FD_GSTAT _IOR('F', 68, struct fdc_status) 120 121/* Options for FD_GOPTS/FD_SOPTS, cleared on device close */ 122#define FDOPT_NORETRY 0x0001 /* no retries on failure */ 123#define FDOPT_NOERRLOG 0x002 /* no "hard error" kernel log messages */ 124#define FDOPT_NOERROR 0x0004 /* do not indicate errors, caller will use 125 FD_GSTAT in order to obtain status */ 126 127/* 128 * The following definitions duplicate those in sys/i386/isa/fdreg.h 129 * They are here since their values are to be used in the above 130 * structure when formatting a floppy. For very obvious reasons, both 131 * definitions must match ;-) 132 */ 133#ifndef FDC_500KBPS 134#define FDC_500KBPS 0x00 /* 500KBPS MFM drive transfer rate */ 135#define FDC_300KBPS 0x01 /* 300KBPS MFM drive transfer rate */ 136#define FDC_250KBPS 0x02 /* 250KBPS MFM drive transfer rate */ 137#define FDC_125KBPS 0x03 /* 125KBPS FM drive transfer rate */ 138 /* for some controllers 1MPBS instead */ 139#endif /* FDC_500KBPS */ 140 141#endif /* !_MACHINE_IOCTL_FD_H_ */ 142