/*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (C) 1992-1994,2001 by Joerg Wunsch, Dresden * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. */ #ifndef _MACHINE_IOCTL_FD_H_ #define _MACHINE_IOCTL_FD_H_ #ifndef _KERNEL #include <sys/types.h> #endif #include <sys/ioccom.h> #define FD_FORMAT_VERSION 110 /* used to validate before formatting */ #define FD_MAX_NSEC 36 /* highest known number of spt - allow for */ /* 2.88 MB drives */ struct fd_formb { int format_version; /* == FD_FORMAT_VERSION */ int cyl, head; int transfer_rate; /* FDC_???KBPS */ struct fd_form_data { /* * DO NOT CHANGE THE LAYOUT OF THIS STRUCTS * it is hardware-dependent since it exactly * matches the byte sequence to write to FDC * during its `format track' operation */ u_char secshift; /* 0 -> 128, ...; usually 2 -> 512 */ u_char nsecs; /* must be <= FD_MAX_NSEC */ u_char gaplen; /* GAP 3 length; usually 84 */ u_char fillbyte; /* usually 0xf6 */ struct fd_idfield_data { /* * data to write into id fields; * for obscure formats, they mustn't match * the real values (but mostly do) */ u_char cylno; /* 0 thru 79 (or 39) */ u_char headno; /* 0, or 1 */ u_char secno; /* starting at 1! */ u_char secsize; /* usually 2 */ } idfields[FD_MAX_NSEC]; /* 0 <= idx < nsecs used */ } format_info; }; /* make life easier */ # define fd_formb_secshift format_info.secshift # define fd_formb_nsecs format_info.nsecs # define fd_formb_gaplen format_info.gaplen # define fd_formb_fillbyte format_info.fillbyte /* these data must be filled in for(i = 0; i < fd_formb_nsecs; i++) */ # define fd_formb_cylno(i) format_info.idfields[i].cylno # define fd_formb_headno(i) format_info.idfields[i].headno # define fd_formb_secno(i) format_info.idfields[i].secno # define fd_formb_secsize(i) format_info.idfields[i].secsize struct fd_type { int sectrac; /* sectors per track */ int secsize; /* size code for sectors */ int datalen; /* data len when secsize = 0 */ int gap; /* gap len between sectors */ int tracks; /* total number of cylinders */ int size; /* size of disk in sectors */ int trans; /* transfer speed code */ int heads; /* number of heads */ int f_gap; /* format gap len */ int f_inter; /* format interleave factor */ int offset_side2; /* offset of sectors on side2 */ int flags; /* misc. features */ #define FL_MFM 0x0001 /* MFM recording */ #define FL_2STEP 0x0002 /* 2 steps between cylinders */ #define FL_PERPND 0x0004 /* perpendicular recording */ #define FL_AUTO 0x0008 /* autodetect format */ }; struct fdc_status { u_int status[7]; }; /* * cyl and head are being passed into ioctl(FD_READID) * all four fields are being returned */ struct fdc_readid { u_char cyl; /* C - 0...79 */ u_char head; /* H - 0...1 */ u_char sec; /* R - 1...n */ u_char secshift; /* N - log2(secsize / 128) */ }; /* * Diskette drive type, basically the same as stored in RTC on ISA * machines (see /sys/isa/rtc.h), but right-shifted by four bits. */ enum fd_drivetype { FDT_NONE, FDT_360K, FDT_12M, FDT_720K, FDT_144M, FDT_288M_1, FDT_288M }; #define FD_FORM _IOW('F', 61, struct fd_formb) /* format a track */ #define FD_GTYPE _IOR('F', 62, struct fd_type) /* get drive type */ #define FD_STYPE _IOW('F', 63, struct fd_type) /* set drive type */ #define FD_GOPTS _IOR('F', 64, int) /* drive options, see below */ #define FD_SOPTS _IOW('F', 65, int) #define FD_CLRERR _IO('F', 67) /* clear error counter */ #define FD_READID _IOWR('F', 68, struct fdc_readid) /* read ID field */ /* * Obtain NE765 status registers. Only successful if there is * a valid status stored in fdc->status[]. */ #define FD_GSTAT _IOR('F', 69, struct fdc_status) #define FD_GDTYPE _IOR('F', 70, enum fd_drivetype) /* obtain drive type */ /* Options for FD_GOPTS/FD_SOPTS, cleared on device close */ #define FDOPT_NORETRY 0x0001 /* no retries on failure */ #define FDOPT_NOERRLOG 0x002 /* no "hard error" kernel log messages */ #define FDOPT_NOERROR 0x0004 /* do not indicate errors, caller will use FD_GSTAT in order to obtain status */ /* * Transfer rate definitions. Used in the structures above. They * represent the hardware encoding of bits 0 and 1 of the FDC control * register when writing to the register. * Transfer rates for FM encoding are half the values listed here * (but we currently don't support FM encoding). */ #define FDC_500KBPS 0x00 /* 500KBPS MFM drive transfer rate */ #define FDC_300KBPS 0x01 /* 300KBPS MFM drive transfer rate */ #define FDC_250KBPS 0x02 /* 250KBPS MFM drive transfer rate */ #define FDC_1MBPS 0x03 /* 1MPBS MFM drive transfer rate */ /* * Parameters for common formats * * See struct fd_type for layout. * XXX: Field 'size' must be calculated. * XXX: Fields 'f_inter' and 'offset_side2' are unused by kernel. * * XXX: These should really go in a /etc/floppycap colon separated file * XXX: but the kernel needs some of them for proper defaults and it would * XXX: should have been done 20 years ago to make sense. */ #define FDF_3_2880 36,2,0xFF,0x1B,80,0,FDC_1MBPS,002,0x4C,1,1,FL_MFM|FL_PERPND #define FDF_3_1722 21,2,0xFF,0x04,82,0,FDC_500KBPS,2,0x0C,2,0,FL_MFM #define FDF_3_1476 18,2,0xFF,0x1B,82,0,FDC_500KBPS,2,0x6C,1,0,FL_MFM #define FDF_3_1440 18,2,0xFF,0x1B,80,0,FDC_500KBPS,2,0x6C,1,0,FL_MFM #define FDF_3_1200 15,2,0xFF,0x1B,80,0,FDC_500KBPS,2,0x54,1,0,FL_MFM #define FDF_3_820 10,2,0xFF,0x10,82,0,FDC_250KBPS,2,0x2e,1,0,FL_MFM #define FDF_3_800 10,2,0xFF,0x10,80,0,FDC_250KBPS,2,0x2e,1,0,FL_MFM #define FDF_3_720 9,2,0xFF,0x20,80,0,FDC_250KBPS,2,0x50,1,0,FL_MFM #define FDF_5_1480 18,2,0xFF,0x02,82,0,FDC_500KBPS,2,0x02,2,0,FL_MFM #define FDF_5_1440 18,2,0xFF,0x02,80,0,FDC_500KBPS,2,0x02,2,0,FL_MFM #define FDF_5_1230 8,3,0xFF,0x35,77,0,FDC_500KBPS,2,0x74,1,0,FL_MFM #define FDF_5_1200 15,2,0xFF,0x1B,80,0,FDC_500KBPS,2,0x54,1,0,FL_MFM #define FDF_5_820 10,2,0xFF,0x10,82,0,FDC_300KBPS,2,0x2e,1,0,FL_MFM #define FDF_5_800 10,2,0xFF,0x10,80,0,FDC_300KBPS,2,0x2e,1,0,FL_MFM #define FDF_5_720 9,2,0xFF,0x20,80,0,FDC_300KBPS,2,0x50,1,0,FL_MFM #define FDF_5_640 8,2,0xFF,0x2A,80,0,FDC_300KBPS,2,0x50,1,0,FL_MFM #define FDF_5_400 10,2,0xFF,0x10,80,0,FDC_300KBPS,1,0x2e,1,0,FL_MFM /* RX50 */ #define FDF_5_360 9,2,0xFF,0x23,40,0,FDC_300KBPS,2,0x50,1,0,FL_MFM /* XXX: 0x2a ? */ #endif /* !_MACHINE_IOCTL_FD_H_ */
