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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* 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.
*
* $FreeBSD$
*/
#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_ */
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