sys/i386/include/ioctl_fd.h

   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: src/sys/i386/include/ioctl_fd.h,v 1.13.2.1 2001/07/19 13:16:54 joerg Exp $
  28  * $DragonFly: src/sys/i386/include/Attic/ioctl_fd.h,v 1.2 2003/06/17 04:28:35 dillon Exp $
  29  */
  30
  31 #ifndef _MACHINE_IOCTL_FD_H_
  32 #define _MACHINE_IOCTL_FD_H_
  33
  34 #ifndef _KERNEL
  35 #include <sys/types.h>
  36 #endif
  37 #include <sys/ioccom.h>
  38
  39 #define FD_FORMAT_VERSION 110   /* used to validate before formatting */
  40 #define FD_MAX_NSEC 36          /* highest known number of spt - allow for */
  41                                 /* 2.88 MB drives */
  42
  43 struct fd_formb {
  44         int format_version;     /* == FD_FORMAT_VERSION */
  45         int cyl, head;
  46         int transfer_rate;      /* fdreg.h: FDC_???KBPS */
  47
  48         union {
  49                 struct fd_form_data {
  50                         /*
  51                          * DO NOT CHANGE THE LAYOUT OF THIS STRUCTS
  52                          * it is hardware-dependent since it exactly
  53                          * matches the byte sequence to write to FDC
  54                          * during its `format track' operation
  55                          */
  56                         u_char secshift; /* 0 -> 128, ...; usually 2 -> 512 */
  57                         u_char nsecs;   /* must be <= FD_MAX_NSEC */
  58                         u_char gaplen;  /* GAP 3 length; usually 84 */
  59                         u_char fillbyte; /* usually 0xf6 */
  60                         struct fd_idfield_data {
  61                                 /*
  62                                  * data to write into id fields;
  63                                  * for obscure formats, they mustn't match
  64                                  * the real values (but mostly do)
  65                                  */
  66                                 u_char cylno;   /* 0 thru 79 (or 39) */
  67                                 u_char headno;  /* 0, or 1 */
  68                                 u_char secno;   /* starting at 1! */
  69                                 u_char secsize; /* usually 2 */
  70                         } idfields[FD_MAX_NSEC]; /* 0 <= idx < nsecs used */
  71                 } structured;
  72                 u_char raw[1];  /* to have continuous indexed access */
  73         } format_info;
  74 };
  75
  76 /* make life easier */
  77 # define fd_formb_secshift   format_info.structured.secshift
  78 # define fd_formb_nsecs      format_info.structured.nsecs
  79 # define fd_formb_gaplen     format_info.structured.gaplen
  80 # define fd_formb_fillbyte   format_info.structured.fillbyte
  81 /* these data must be filled in for(i = 0; i < fd_formb_nsecs; i++) */
  82 # define fd_formb_cylno(i)   format_info.structured.idfields[i].cylno
  83 # define fd_formb_headno(i)  format_info.structured.idfields[i].headno
  84 # define fd_formb_secno(i)   format_info.structured.idfields[i].secno
  85 # define fd_formb_secsize(i) format_info.structured.idfields[i].secsize
  86
  87 struct fd_type {
  88         int     sectrac;                /* sectors per track         */
  89         int     secsize;                /* size code for sectors     */
  90         int     datalen;                /* data len when secsize = 0 */
  91         int     gap;                    /* gap len between sectors   */
  92         int     tracks;                 /* total num of tracks       */
  93         int     size;                   /* size of disk in sectors   */
  94         int     steptrac;               /* steps per cylinder        */
  95         int     trans;                  /* transfer speed code       */
  96         int     heads;                  /* number of heads           */
  97         int     f_gap;                  /* format gap len            */
  98         int     f_inter;                /* format interleave factor  */
  99 };
 100
 101 struct fdc_status {
 102         u_int   status[7];
 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 FD_DEBUG  _IOW('F', 66, int)
 113
 114 /*
 115  * Obtain NE765 status registers.  Only successful if there is
 116  * a valid status stored in fdc->status[].
 117  */
 118 #define FD_GSTAT  _IOR('F', 68, struct fdc_status)
 119
 120 /* Options for FD_GOPTS/FD_SOPTS, cleared on device close */
 121 #define FDOPT_NORETRY 0x0001    /* no retries on failure */
 122 #define FDOPT_NOERRLOG 0x002    /* no "hard error" kernel log messages */
 123
 124 /*
 125  * The following definitions duplicate those in sys/i386/isa/fdreg.h
 126  * They are here since their values are to be used in the above
 127  * structure when formatting a floppy. For very obvious reasons, both
 128  * definitions must match ;-)
 129  */
 130 #ifndef FDC_500KBPS
 131 #define FDC_500KBPS     0x00    /* 500KBPS MFM drive transfer rate */
 132 #define FDC_300KBPS     0x01    /* 300KBPS MFM drive transfer rate */
 133 #define FDC_250KBPS     0x02    /* 250KBPS MFM drive transfer rate */
 134 #define FDC_125KBPS     0x03    /* 125KBPS FM drive transfer rate */
 135                                 /* for some controllers 1MPBS instead */
 136 #endif /* FDC_500KBPS */
 137
 138 #endif /* !_MACHINE_IOCTL_FD_H_ */