218 lines
8.4 KiB
C
218 lines
8.4 KiB
C
/*-
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* Copyright (C) 1992-1994,2001 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; /* FDC_???KBPS */
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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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} format_info;
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};
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/* make life easier */
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# define fd_formb_secshift format_info.secshift
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# define fd_formb_nsecs format_info.nsecs
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# define fd_formb_gaplen format_info.gaplen
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# define fd_formb_fillbyte format_info.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.idfields[i].cylno
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# define fd_formb_headno(i) format_info.idfields[i].headno
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# define fd_formb_secno(i) format_info.idfields[i].secno
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# define fd_formb_secsize(i) format_info.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 number of cylinders */
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int size; /* size of disk in sectors */
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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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int offset_side2; /* offset of sectors on side2 */
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int flags; /* misc. features */
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#define FL_MFM 0x0001 /* MFM recording */
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#define FL_2STEP 0x0002 /* 2 steps between cylinders */
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#define FL_PERPND 0x0004 /* perpendicular recording */
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#define FL_AUTO 0x0008 /* autodetect format */
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};
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struct fdc_status {
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u_int status[7];
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};
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/*
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* cyl and head are being passed into ioctl(FD_READID)
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* all four fields are being returned
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*/
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struct fdc_readid {
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u_char cyl; /* C - 0...79 */
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u_char head; /* H - 0...1 */
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u_char sec; /* R - 1...n */
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u_char secshift; /* N - log2(secsize / 128) */
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};
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/*
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* Diskette drive type, basically the same as stored in RTC on ISA
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* machines (see /sys/isa/rtc.h), but right-shifted by four bits.
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*/
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enum fd_drivetype {
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FDT_NONE, FDT_360K, FDT_12M, FDT_720K, FDT_144M, FDT_288M_1,
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FDT_288M
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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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#ifdef PC98
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#define FD_DEBUG _IOW('F', 66, int)
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#endif
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#define FD_CLRERR _IO('F', 67) /* clear error counter */
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#define FD_READID _IOWR('F', 68, struct fdc_readid) /* read ID field */
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/*
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* Obtain NE765 status registers. Only successful if there is
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* a valid status stored in fdc->status[].
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*/
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#define FD_GSTAT _IOR('F', 69, struct fdc_status)
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#define FD_GDTYPE _IOR('F', 70, enum fd_drivetype) /* obtain drive type */
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/* Options for FD_GOPTS/FD_SOPTS, cleared on device close */
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#define FDOPT_NORETRY 0x0001 /* no retries on failure */
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#define FDOPT_NOERRLOG 0x002 /* no "hard error" kernel log messages */
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#define FDOPT_NOERROR 0x0004 /* do not indicate errors, caller will use
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FD_GSTAT in order to obtain status */
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#ifdef PC98
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#define FDOPT_AUTOSEL 0x8000 /* read/only option: device performs media
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* autoselection */
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#endif
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/*
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* Transfer rate definitions. Used in the structures above. They
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* represent the hardware encoding of bits 0 and 1 of the FDC control
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* register when writing to the register.
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* Transfer rates for FM encoding are half the values listed here
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* (but we currently don't support FM encoding).
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*/
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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_1MBPS 0x03 /* 1MPBS MFM drive transfer rate */
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/*
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* Parameters for common formats
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*
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* See struct fd_type for layout.
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* XXX: Field 'size' must be calculated.
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* XXX: Fields 'f_inter' and 'offset_side2' are unused by kernel.
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*
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* XXX: These should really go in a /etc/floppycap colon separated file
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* XXX: but the kernel needs some of them for proper defaults and it would
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* XXX: should have been done 20 years ago to make sense.
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*/
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#ifdef PC98
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#define FDF_3_1440 18,2,0xFF,0x1B,80,0,2,2,0x54,1,0,FL_MFM
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#define FDF_3_1200 15,2,0xFF,0x1B,80,0,0,2,0x54,1,0,FL_MFM
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#define FDF_3_720 9,2,0xFF,0x20,80,0,1,2,0x50,1,0,FL_MFM
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#define FDF_3_360 9,2,0xFF,0x20,40,0,1,2,0x50,1,0,FL_MFM|FL_2STEP
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#define FDF_3_640 8,2,0xFF,0x2A,80,0,1,2,0x50,1,0,FL_MFM
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#define FDF_3_1230 8,3,0xFF,0x35,77,0,0,2,0x74,1,0,FL_MFM
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#define FDF_5_1200 15,2,0xFF,0x1B,80,0,0,2,0x54,1,0,FL_MFM
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#define FDF_5_720 9,2,0xFF,0x20,80,0,1,2,0x50,1,0,FL_MFM
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#define FDF_5_360 9,2,0xFF,0x20,40,0,1,2,0x50,1,0,FL_MFM|FL_2STEP
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#define FDF_5_640 8,2,0xFF,0x2A,80,0,1,2,0x50,1,0,FL_MFM
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#define FDF_5_1230 8,3,0xFF,0x35,77,0,0,2,0x74,1,0,FL_MFM
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#else /* PC98 */
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#define FDF_3_2880 36,2,0xFF,0x1B,80,0,FDC_1MBPS,002,0x4C,1,1,FL_MFM|FL_PERPND
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#define FDF_3_1722 21,2,0xFF,0x04,82,0,FDC_500KBPS,2,0x0C,2,0,FL_MFM
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#define FDF_3_1476 18,2,0xFF,0x1B,82,0,FDC_500KBPS,2,0x6C,1,0,FL_MFM
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#define FDF_3_1440 18,2,0xFF,0x1B,80,0,FDC_500KBPS,2,0x6C,1,0,FL_MFM
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#define FDF_3_1200 15,2,0xFF,0x1B,80,0,FDC_500KBPS,2,0x54,1,0,FL_MFM
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#define FDF_3_820 10,2,0xFF,0x10,82,0,FDC_250KBPS,2,0x2e,1,0,FL_MFM
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#define FDF_3_800 10,2,0xFF,0x10,80,0,FDC_250KBPS,2,0x2e,1,0,FL_MFM
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#define FDF_3_720 9,2,0xFF,0x20,80,0,FDC_250KBPS,2,0x50,1,0,FL_MFM
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#define FDF_5_1480 18,2,0xFF,0x02,82,0,FDC_500KBPS,2,0x02,2,0,FL_MFM
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#define FDF_5_1440 18,2,0xFF,0x02,80,0,FDC_500KBPS,2,0x02,2,0,FL_MFM
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#define FDF_5_1230 8,3,0xFF,0x35,77,0,FDC_500KBPS,2,0x74,1,0,FL_MFM
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#define FDF_5_1200 15,2,0xFF,0x1B,80,0,FDC_500KBPS,2,0x54,1,0,FL_MFM
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#define FDF_5_820 10,2,0xFF,0x10,82,0,FDC_300KBPS,2,0x2e,1,0,FL_MFM
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#define FDF_5_800 10,2,0xFF,0x10,80,0,FDC_300KBPS,2,0x2e,1,0,FL_MFM
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#define FDF_5_720 9,2,0xFF,0x20,80,0,FDC_300KBPS,2,0x50,1,0,FL_MFM
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#define FDF_5_640 8,2,0xFF,0x2A,80,0,FDC_300KBPS,2,0x50,1,0,FL_MFM
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#define FDF_5_400 10,2,0xFF,0x10,80,0,FDC_300KBPS,1,0x2e,1,0,FL_MFM /* RX50 */
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#define FDF_5_360 9,2,0xFF,0x23,40,0,FDC_300KBPS,2,0x50,1,0,FL_MFM
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/* XXX: 0x2a ? */
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#endif
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#endif /* !_MACHINE_IOCTL_FD_H_ */
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