1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (C) 1992-1994,2001 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 * $FreeBSD$ 30 */ 31 32 #ifndef _MACHINE_IOCTL_FD_H_ 33 #define _MACHINE_IOCTL_FD_H_ 34 35 #ifndef _KERNEL 36 #include <sys/types.h> 37 #endif 38 #include <sys/ioccom.h> 39 40 #define FD_FORMAT_VERSION 110 /* used to validate before formatting */ 41 #define FD_MAX_NSEC 36 /* highest known number of spt - allow for */ 42 /* 2.88 MB drives */ 43 44 struct fd_formb { 45 int format_version; /* == FD_FORMAT_VERSION */ 46 int cyl, head; 47 int transfer_rate; /* FDC_???KBPS */ 48 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 } format_info; 72 }; 73 74 /* make life easier */ 75 # define fd_formb_secshift format_info.secshift 76 # define fd_formb_nsecs format_info.nsecs 77 # define fd_formb_gaplen format_info.gaplen 78 # define fd_formb_fillbyte format_info.fillbyte 79 /* these data must be filled in for(i = 0; i < fd_formb_nsecs; i++) */ 80 # define fd_formb_cylno(i) format_info.idfields[i].cylno 81 # define fd_formb_headno(i) format_info.idfields[i].headno 82 # define fd_formb_secno(i) format_info.idfields[i].secno 83 # define fd_formb_secsize(i) format_info.idfields[i].secsize 84 85 struct fd_type { 86 int sectrac; /* sectors per track */ 87 int secsize; /* size code for sectors */ 88 int datalen; /* data len when secsize = 0 */ 89 int gap; /* gap len between sectors */ 90 int tracks; /* total number of cylinders */ 91 int size; /* size of disk in sectors */ 92 int trans; /* transfer speed code */ 93 int heads; /* number of heads */ 94 int f_gap; /* format gap len */ 95 int f_inter; /* format interleave factor */ 96 int offset_side2; /* offset of sectors on side2 */ 97 int flags; /* misc. features */ 98 #define FL_MFM 0x0001 /* MFM recording */ 99 #define FL_2STEP 0x0002 /* 2 steps between cylinders */ 100 #define FL_PERPND 0x0004 /* perpendicular recording */ 101 #define FL_AUTO 0x0008 /* autodetect format */ 102 }; 103 104 struct fdc_status { 105 u_int status[7]; 106 }; 107 108 /* 109 * cyl and head are being passed into ioctl(FD_READID) 110 * all four fields are being returned 111 */ 112 struct fdc_readid { 113 u_char cyl; /* C - 0...79 */ 114 u_char head; /* H - 0...1 */ 115 u_char sec; /* R - 1...n */ 116 u_char secshift; /* N - log2(secsize / 128) */ 117 }; 118 119 /* 120 * Diskette drive type, basically the same as stored in RTC on ISA 121 * machines (see /sys/isa/rtc.h), but right-shifted by four bits. 122 */ 123 enum fd_drivetype { 124 FDT_NONE, FDT_360K, FDT_12M, FDT_720K, FDT_144M, FDT_288M_1, 125 FDT_288M 126 }; 127 128 #define FD_FORM _IOW('F', 61, struct fd_formb) /* format a track */ 129 #define FD_GTYPE _IOR('F', 62, struct fd_type) /* get drive type */ 130 #define FD_STYPE _IOW('F', 63, struct fd_type) /* set drive type */ 131 132 #define FD_GOPTS _IOR('F', 64, int) /* drive options, see below */ 133 #define FD_SOPTS _IOW('F', 65, int) 134 135 #define FD_CLRERR _IO('F', 67) /* clear error counter */ 136 137 #define FD_READID _IOWR('F', 68, struct fdc_readid) /* read ID field */ 138 139 /* 140 * Obtain NE765 status registers. Only successful if there is 141 * a valid status stored in fdc->status[]. 142 */ 143 #define FD_GSTAT _IOR('F', 69, struct fdc_status) 144 145 #define FD_GDTYPE _IOR('F', 70, enum fd_drivetype) /* obtain drive type */ 146 147 /* Options for FD_GOPTS/FD_SOPTS, cleared on device close */ 148 #define FDOPT_NORETRY 0x0001 /* no retries on failure */ 149 #define FDOPT_NOERRLOG 0x002 /* no "hard error" kernel log messages */ 150 #define FDOPT_NOERROR 0x0004 /* do not indicate errors, caller will use 151 FD_GSTAT in order to obtain status */ 152 153 /* 154 * Transfer rate definitions. Used in the structures above. They 155 * represent the hardware encoding of bits 0 and 1 of the FDC control 156 * register when writing to the register. 157 * Transfer rates for FM encoding are half the values listed here 158 * (but we currently don't support FM encoding). 159 */ 160 #define FDC_500KBPS 0x00 /* 500KBPS MFM drive transfer rate */ 161 #define FDC_300KBPS 0x01 /* 300KBPS MFM drive transfer rate */ 162 #define FDC_250KBPS 0x02 /* 250KBPS MFM drive transfer rate */ 163 #define FDC_1MBPS 0x03 /* 1MPBS MFM drive transfer rate */ 164 165 /* 166 * Parameters for common formats 167 * 168 * See struct fd_type for layout. 169 * XXX: Field 'size' must be calculated. 170 * XXX: Fields 'f_inter' and 'offset_side2' are unused by kernel. 171 * 172 * XXX: These should really go in a /etc/floppycap colon separated file 173 * XXX: but the kernel needs some of them for proper defaults and it would 174 * XXX: should have been done 20 years ago to make sense. 175 */ 176 #define FDF_3_2880 36,2,0xFF,0x1B,80,0,FDC_1MBPS,002,0x4C,1,1,FL_MFM|FL_PERPND 177 #define FDF_3_1722 21,2,0xFF,0x04,82,0,FDC_500KBPS,2,0x0C,2,0,FL_MFM 178 #define FDF_3_1476 18,2,0xFF,0x1B,82,0,FDC_500KBPS,2,0x6C,1,0,FL_MFM 179 #define FDF_3_1440 18,2,0xFF,0x1B,80,0,FDC_500KBPS,2,0x6C,1,0,FL_MFM 180 #define FDF_3_1200 15,2,0xFF,0x1B,80,0,FDC_500KBPS,2,0x54,1,0,FL_MFM 181 #define FDF_3_820 10,2,0xFF,0x10,82,0,FDC_250KBPS,2,0x2e,1,0,FL_MFM 182 #define FDF_3_800 10,2,0xFF,0x10,80,0,FDC_250KBPS,2,0x2e,1,0,FL_MFM 183 #define FDF_3_720 9,2,0xFF,0x20,80,0,FDC_250KBPS,2,0x50,1,0,FL_MFM 184 #define FDF_5_1480 18,2,0xFF,0x02,82,0,FDC_500KBPS,2,0x02,2,0,FL_MFM 185 #define FDF_5_1440 18,2,0xFF,0x02,80,0,FDC_500KBPS,2,0x02,2,0,FL_MFM 186 #define FDF_5_1230 8,3,0xFF,0x35,77,0,FDC_500KBPS,2,0x74,1,0,FL_MFM 187 #define FDF_5_1200 15,2,0xFF,0x1B,80,0,FDC_500KBPS,2,0x54,1,0,FL_MFM 188 #define FDF_5_820 10,2,0xFF,0x10,82,0,FDC_300KBPS,2,0x2e,1,0,FL_MFM 189 #define FDF_5_800 10,2,0xFF,0x10,80,0,FDC_300KBPS,2,0x2e,1,0,FL_MFM 190 #define FDF_5_720 9,2,0xFF,0x20,80,0,FDC_300KBPS,2,0x50,1,0,FL_MFM 191 #define FDF_5_640 8,2,0xFF,0x2A,80,0,FDC_300KBPS,2,0x50,1,0,FL_MFM 192 #define FDF_5_400 10,2,0xFF,0x10,80,0,FDC_300KBPS,1,0x2e,1,0,FL_MFM /* RX50 */ 193 #define FDF_5_360 9,2,0xFF,0x23,40,0,FDC_300KBPS,2,0x50,1,0,FL_MFM 194 /* XXX: 0x2a ? */ 195 196 #endif /* !_MACHINE_IOCTL_FD_H_ */ 197