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664a31e496
is an application space macro and the applications are supposed to be free to use it as they please (but cannot). This is consistant with the other BSD's who made this change quite some time ago. More commits to come.
126 lines
4.8 KiB
C
126 lines
4.8 KiB
C
/*
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* Copyright (C) 1992-1994 by Joerg Wunsch, Dresden
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _MACHINE_IOCTL_FD_H_
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#define _MACHINE_IOCTL_FD_H_
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#ifndef _KERNEL
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#include <sys/types.h>
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#endif
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#include <sys/ioccom.h>
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#define FD_FORMAT_VERSION 110 /* used to validate before formatting */
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#define FD_MAX_NSEC 36 /* highest known number of spt - allow for */
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/* 2.88 MB drives */
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struct fd_formb {
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int format_version; /* == FD_FORMAT_VERSION */
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int cyl, head;
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int transfer_rate; /* fdreg.h: FDC_???KBPS */
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union {
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struct fd_form_data {
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/*
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* DO NOT CHANGE THE LAYOUT OF THIS STRUCTS
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* it is hardware-dependent since it exactly
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* matches the byte sequence to write to FDC
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* during its `format track' operation
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*/
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u_char secshift; /* 0 -> 128, ...; usually 2 -> 512 */
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u_char nsecs; /* must be <= FD_MAX_NSEC */
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u_char gaplen; /* GAP 3 length; usually 84 */
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u_char fillbyte; /* usually 0xf6 */
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struct fd_idfield_data {
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/*
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* data to write into id fields;
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* for obscure formats, they mustn't match
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* the real values (but mostly do)
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*/
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u_char cylno; /* 0 thru 79 (or 39) */
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u_char headno; /* 0, or 1 */
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u_char secno; /* starting at 1! */
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u_char secsize; /* usually 2 */
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} idfields[FD_MAX_NSEC]; /* 0 <= idx < nsecs used */
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} structured;
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u_char raw[1]; /* to have continuous indexed access */
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} format_info;
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};
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/* make life easier */
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# define fd_formb_secshift format_info.structured.secshift
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# define fd_formb_nsecs format_info.structured.nsecs
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# define fd_formb_gaplen format_info.structured.gaplen
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# define fd_formb_fillbyte format_info.structured.fillbyte
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/* these data must be filled in for(i = 0; i < fd_formb_nsecs; i++) */
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# define fd_formb_cylno(i) format_info.structured.idfields[i].cylno
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# define fd_formb_headno(i) format_info.structured.idfields[i].headno
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# define fd_formb_secno(i) format_info.structured.idfields[i].secno
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# define fd_formb_secsize(i) format_info.structured.idfields[i].secsize
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struct fd_type {
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int sectrac; /* sectors per track */
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int secsize; /* size code for sectors */
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int datalen; /* data len when secsize = 0 */
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int gap; /* gap len between sectors */
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int tracks; /* total num of tracks */
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int size; /* size of disk in sectors */
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int steptrac; /* steps per cylinder */
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int trans; /* transfer speed code */
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int heads; /* number of heads */
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int f_gap; /* format gap len */
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int f_inter; /* format interleave factor */
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};
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#define FD_FORM _IOW('F', 61, struct fd_formb) /* format a track */
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#define FD_GTYPE _IOR('F', 62, struct fd_type) /* get drive type */
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#define FD_STYPE _IOW('F', 63, struct fd_type) /* set drive type */
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#define FD_GOPTS _IOR('F', 64, int) /* drive options, see below */
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#define FD_SOPTS _IOW('F', 65, int)
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#define FD_DEBUG _IOW('F', 66, int)
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#define FDOPT_NORETRY 0x0001 /* no retries on failure (cleared on close) */
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/*
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* The following definitions duplicate those in sys/i386/isa/fdreg.h
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* They are here since their values are to be used in the above
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* structure when formatting a floppy. For very obvious reasons, both
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* definitions must match ;-)
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*/
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#ifndef FDC_500KBPS
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#define FDC_500KBPS 0x00 /* 500KBPS MFM drive transfer rate */
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#define FDC_300KBPS 0x01 /* 300KBPS MFM drive transfer rate */
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#define FDC_250KBPS 0x02 /* 250KBPS MFM drive transfer rate */
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#define FDC_125KBPS 0x03 /* 125KBPS FM drive transfer rate */
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/* for some controllers 1MPBS instead */
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#endif /* FDC_500KBPS */
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#endif /* !_MACHINE_IOCTL_FD_H_ */
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