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Updated driver to the 1.1.5 version:
date: 1994/05/22 12:35:38; author: joerg; state: Exp; lines: +6 -6
First round of floppy changes. Try making `fd' more robust.
New features:
. ioctl command for setting the drive type (density etc.); restricted
to the super-user
. ioctl for getting/seting `drive options'; currently only option
is FDOPT_NORETRY: inhibit the usual retries; used when verifying
a newly formatted track
Fixes:
. function prototypes
. made all internal functions `static'
. cleaned up & corrected .h files
. restructured, to make the chaotic function sequence more rational
. compiled with -Wall, and cleared all warnings
. introduced a mirror for the (write-only) `digital output register',
to avoid the current kludge
. device probing completed by seeking/recalibrating, and looking
for track 0 being found
. holding the controller down in reset state while it is idle (and
thus saving allot of headaches)
. make requests fail that are not a multiple of the (physical)
sector size
. removed the fixed physical sector size (512 bytes), allowing for any
size the controller could handle (128/256/512/1024 bytes)
. replaced some silly messages
. fixed the TRACE* macro usage, debugging reports should be complete
now again (debugging output is HUGE! though)
. removed fd_timeout for SEEK command; seeks are always reported by
the controller to succeed, since the `success' only refers to the
controller's idea of success - there is no hardware line to tell about
the seek end (other than the `track 0' line)
. catch SENSEI's that report about a `terminated due to READY changed'
status - could happen after a controller reset
. converted ``hz / <something>'' divide operations to divisors that are
powers of two, so gcc can optimize them into shifts
. write/format operations are checked against a write-protected medium
now *prior* starting the operation
. error reports of `invalid command' and `wrong cylinder' will cause
shortcuts in the retrier() now
. fixed a bug in the retrier() causing bogus block numbers to be reported
. fdformat() does care for errors now
Known Bugs:
. no attempts have been made (yet) to improve the performance
. sometimes, bogus ``seek/recalib failed'' messages are logged; this
is still a bug in the driver, but it's not harmful since it's
usually caught by the retrier()
Reviewed by:
Submitted by:
Obtained from:
This commit is contained in:
David Greenman
parent
56c74915f8
commit
3a2f7427fe
13 changed files with 1742 additions and 960 deletions
File diff suppressed because it is too large
Load diff
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@ -31,7 +31,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)fdreg.h 7.1 (Berkeley) 5/9/91
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* $Id: fdreg.h,v 1.4 1994/02/07 22:12:42 alm Exp $
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* $Id: fdreg.h,v 1.5 1994/08/13 03:49:58 wollman Exp $
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*/
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/*
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@ -42,24 +42,26 @@
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#include <i386/isa/ic/nec765.h>
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/* registers */
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#define fdout 2 /* Digital Output Register (W) */
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#define FDOUT 2 /* Digital Output Register (W) */
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#define FDO_FDSEL 0x03 /* floppy device select */
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#define FDO_FRST 0x04 /* floppy controller reset */
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#define FDO_FDMAEN 0x08 /* enable floppy DMA and Interrupt */
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#define FDO_MOEN0 0x10 /* motor enable drive 0 */
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#define FDO_MOEN1 0x20 /* motor enable drive 1 */
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#define FDO_MOEN2 0x30 /* motor enable drive 2 */
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#define FDO_MOEN3 0x40 /* motor enable drive 3 */
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#define FDO_MOEN2 0x40 /* motor enable drive 2 */
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#define FDO_MOEN3 0x80 /* motor enable drive 3 */
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#define fdsts 4 /* NEC 765 Main Status Register (R) */
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#define fddata 5 /* NEC 765 Data Register (R/W) */
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#define FDSTS 4 /* NEC 765 Main Status Register (R) */
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#define FDDATA 5 /* NEC 765 Data Register (R/W) */
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#define fdctl 7 /* Control Register (W) */
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#define FDCTL 7 /* Control Register (W) */
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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_125KBPS 0x03 /* 125KBPS FM drive transfer rate */
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/* for some controllers 1MPBS instead */
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#define fdin 7 /* Digital Input Register (R) */
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#define FDIN 7 /* Digital Input Register (R) */
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#define FDI_DCHG 0x80 /* diskette has been changed */
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/* requires drive and motor being selected */
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/* is cleared by any step pulse to drive */
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@ -31,7 +31,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)nec765.h 7.1 (Berkeley) 5/9/91
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* $Id$
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* $Id: nec765.h,v 1.2 1993/10/16 13:48:50 rgrimes Exp $
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*/
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/*
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@ -47,26 +47,90 @@
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#define NE7_RQM 0x80 /* Diskette Controller ReQuest for Master */
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/* Status register ST0 */
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#define NE7_ST0BITS "\020\010invld\007abnrml\006seek_cmplt\005drv_chck\004drive_rdy\003top_head"
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#define NE7_ST0BITS "\020\010invld\007abnrml\006seek_cmplt\005equ_chck\004drive_notrdy\003top_head"
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#define NE7_ST0_IC 0xc0 /* interrupt completion code */
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#define NE7_ST0_IC_RC 0xc0 /* terminated due to ready changed, n/a */
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#define NE7_ST0_IC_IV 0x80 /* invalid command; must reset FDC */
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#define NE7_ST0_IC_AT 0x40 /* abnormal termination, check error stat */
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#define NE7_ST0_IC_NT 0x00 /* normal termination */
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#define NE7_ST0_SE 0x20 /* seek end */
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#define NE7_ST0_EC 0x10 /* equipment check, recalibrated but no trk0 */
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#define NE7_ST0_NR 0x08 /* not ready (n/a) */
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#define NE7_ST0_HD 0x04 /* upper head selected */
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#define NE7_ST0_DR 0x03 /* drive code */
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/* Status register ST1 */
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#define NE7_ST1BITS "\020\010end_of_cyl\006bad_crc\005data_overrun\003sec_not_fnd\002write_protect\001no_am"
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#define NE7_ST1_EN 0x80 /* end of cylinder, access past last record */
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#define NE7_ST1_DE 0x20 /* data error, CRC fail in ID or data */
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#define NE7_ST1_OR 0x10 /* DMA overrun, DMA failed to do i/o quickly */
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#define NE7_ST1_ND 0x04 /* no data, sector not found or CRC in ID f. */
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#define NE7_ST1_NW 0x02 /* not writeable, attempt to violate WP */
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#define NE7_ST1_MA 0x01 /* missing address mark (in ID or data field)*/
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/* Status register ST2 */
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#define NE7_ST2BITS "\020\007ctrl_mrk\006bad_crc\005wrong_cyl\004scn_eq\003scn_not_fnd\002bad_cyl\001no_dam"
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#define NE7_ST2_CM 0x40 /* control mark; found deleted data */
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#define NE7_ST2_DD 0x20 /* data error in data field, CRC fail */
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#define NE7_ST2_WC 0x10 /* wrong cylinder, ID field mismatches cmd */
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#define NE7_ST2_SH 0x08 /* scan equal hit */
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#define NE7_ST2_SN 0x04 /* scan not satisfied */
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#define NE7_ST2_BC 0x02 /* bad cylinder, cylinder marked 0xff */
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#define NE7_ST2_MD 0x01 /* missing address mark in data field */
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/* Status register ST3 */
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#define NE7_ST3BITS "\020\010fault\007write_protect\006drdy\005tk0\004two_side\003side_sel\002"
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#define NE7_ST3_FT 0x80 /* fault; PC: n/a */
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#define NE7_ST3_WP 0x40 /* write protected */
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#define NE7_ST3_RD 0x20 /* ready; PC: always true */
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#define NE7_ST3_T0 0x10 /* track 0 */
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#define NE7_ST3_TS 0x08 /* two-sided; PC: n/a */
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#define NE7_ST3_HD 0x04 /* upper head select */
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#define NE7_ST3_US 0x03 /* unit select */
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/* Commands */
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/*
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* the top three bits -- where appropriate -- are set as follows:
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*
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* 0x80 - MT multi-track; allow both sides to be handled in single cmd
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* 0x40 - MFM modified frequency modulation; use MFM encoding
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* 0x20 - SK skip; skip sectors marked as "deleted"
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*/
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#define NE7CMD_READTRK 0x42 /* read whole track */
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#define NE7CMD_SPECIFY 3 /* specify drive parameters - requires unit
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parameters byte */
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#define NE7CMD_SENSED 4 /* sense drive - requires unit select byte */
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#define NE7CMD_WRITE 0xc5 /* write - requires eight additional bytes */
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#define NE7CMD_READ 0xe6 /* read - requires eight additional bytes */
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#define NE7CMD_FORMAT 0x4c /* format - requires five additional bytes */
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#define NE7CMD_RECAL 7 /* recalibrate drive - requires
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unit select byte */
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#define NE7CMD_SENSEI 8 /* sense controller interrupt status */
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#define NE7CMD_SEEK 15 /* seek drive - requires unit select byte
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#define NE7CMD_WRITEDEL 0xc9 /* write deleted data */
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#define NE7CMD_READID 0x4a /* read ID field */
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#define NE7CMD_READDEL 0xec /* read deleted data */
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#define NE7CMD_FORMAT 0x4d /* format - requires five additional bytes */
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#define NE7CMD_SEEK 0x0f /* seek drive - requires unit select byte
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and new cyl byte */
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#define NE7CMD_SCNEQU 0xf1 /* scan equal */
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#define NE7CMD_SCNLE 0xf9 /* scan less or equal */
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#define NE7CMD_SCNGE 0xfd /* scan greater or equal */
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/*
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* "specify" definitions
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*
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* acronyms (times are relative to a FDC clock of 8 MHz):
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* srt - step rate; PC usually 3 ms
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* hut - head unload time; PC usually maximum of 240 ms
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* hlt - head load time; PC usually minimum of 2 ms
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* nd - no DMA flag; PC usually not set (0)
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*/
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#define NE7_SPEC_1(srt, hut) (((16 - (srt)) << 4) | (((hut) / 16)))
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#define NE7_SPEC_2(hlt, nd) (((hlt) & 0xFE) | ((nd) & 1))
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@ -1,5 +1,5 @@
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/*
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* Copyright (C) 1992-1993 by Joerg Wunsch, Dresden
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* Copyright (C) 1992-1994 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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@ -11,17 +11,18 @@
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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 ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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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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* $Id$
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*/
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@ -96,5 +97,11 @@ struct fd_type {
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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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#define FDOPT_NORETRY 0x0001 /* no retries on failure (cleared on close) */
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#endif /* !def _IOCTL_FD_H */
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File diff suppressed because it is too large
Load diff
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@ -31,7 +31,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)fd.c 7.4 (Berkeley) 5/25/91
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* $Id:$
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* $Id: fdc.h,v 1.2 1994/02/14 22:24:25 nate Exp $
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*
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*/
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@ -49,12 +49,12 @@ struct fdc_data
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#define FDC_HASFTAPE 0x02
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#define FDC_TAPE_BUSY 0x04
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struct fd_data *fd;
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int fdu; /* the active drive */
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int fdu; /* the active drive */
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int state;
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int retry;
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int fdout; /* mirror of the w/o digital output reg */
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int status[7]; /* copy of the registers */
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struct buf head; /* Head of buf chain */
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struct buf rhead; /* Raw head of buf chain */
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int state;
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int retry;
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int status[7]; /* copy of the registers */
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};
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/***********************************************************************\
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@ -31,7 +31,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)fdreg.h 7.1 (Berkeley) 5/9/91
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* $Id: fdreg.h,v 1.4 1994/02/07 22:12:42 alm Exp $
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* $Id: fdreg.h,v 1.5 1994/08/13 03:49:58 wollman Exp $
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*/
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/*
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@ -42,24 +42,26 @@
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#include <i386/isa/ic/nec765.h>
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/* registers */
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#define fdout 2 /* Digital Output Register (W) */
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#define FDOUT 2 /* Digital Output Register (W) */
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#define FDO_FDSEL 0x03 /* floppy device select */
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#define FDO_FRST 0x04 /* floppy controller reset */
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#define FDO_FDMAEN 0x08 /* enable floppy DMA and Interrupt */
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#define FDO_MOEN0 0x10 /* motor enable drive 0 */
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#define FDO_MOEN1 0x20 /* motor enable drive 1 */
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#define FDO_MOEN2 0x30 /* motor enable drive 2 */
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#define FDO_MOEN3 0x40 /* motor enable drive 3 */
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#define FDO_MOEN2 0x40 /* motor enable drive 2 */
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#define FDO_MOEN3 0x80 /* motor enable drive 3 */
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#define fdsts 4 /* NEC 765 Main Status Register (R) */
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#define fddata 5 /* NEC 765 Data Register (R/W) */
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#define FDSTS 4 /* NEC 765 Main Status Register (R) */
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#define FDDATA 5 /* NEC 765 Data Register (R/W) */
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#define fdctl 7 /* Control Register (W) */
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#define FDCTL 7 /* Control Register (W) */
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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_125KBPS 0x03 /* 125KBPS FM drive transfer rate */
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/* for some controllers 1MPBS instead */
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#define fdin 7 /* Digital Input Register (R) */
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#define FDIN 7 /* Digital Input Register (R) */
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#define FDI_DCHG 0x80 /* diskette has been changed */
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/* requires drive and motor being selected */
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/* is cleared by any step pulse to drive */
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@ -31,7 +31,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)nec765.h 7.1 (Berkeley) 5/9/91
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* $Id$
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* $Id: nec765.h,v 1.2 1993/10/16 13:48:50 rgrimes Exp $
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*/
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/*
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#define NE7_RQM 0x80 /* Diskette Controller ReQuest for Master */
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/* Status register ST0 */
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#define NE7_ST0BITS "\020\010invld\007abnrml\006seek_cmplt\005drv_chck\004drive_rdy\003top_head"
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#define NE7_ST0BITS "\020\010invld\007abnrml\006seek_cmplt\005equ_chck\004drive_notrdy\003top_head"
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#define NE7_ST0_IC 0xc0 /* interrupt completion code */
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#define NE7_ST0_IC_RC 0xc0 /* terminated due to ready changed, n/a */
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#define NE7_ST0_IC_IV 0x80 /* invalid command; must reset FDC */
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#define NE7_ST0_IC_AT 0x40 /* abnormal termination, check error stat */
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#define NE7_ST0_IC_NT 0x00 /* normal termination */
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#define NE7_ST0_SE 0x20 /* seek end */
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#define NE7_ST0_EC 0x10 /* equipment check, recalibrated but no trk0 */
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#define NE7_ST0_NR 0x08 /* not ready (n/a) */
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#define NE7_ST0_HD 0x04 /* upper head selected */
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#define NE7_ST0_DR 0x03 /* drive code */
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/* Status register ST1 */
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#define NE7_ST1BITS "\020\010end_of_cyl\006bad_crc\005data_overrun\003sec_not_fnd\002write_protect\001no_am"
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#define NE7_ST1_EN 0x80 /* end of cylinder, access past last record */
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#define NE7_ST1_DE 0x20 /* data error, CRC fail in ID or data */
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#define NE7_ST1_OR 0x10 /* DMA overrun, DMA failed to do i/o quickly */
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#define NE7_ST1_ND 0x04 /* no data, sector not found or CRC in ID f. */
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#define NE7_ST1_NW 0x02 /* not writeable, attempt to violate WP */
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#define NE7_ST1_MA 0x01 /* missing address mark (in ID or data field)*/
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/* Status register ST2 */
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#define NE7_ST2BITS "\020\007ctrl_mrk\006bad_crc\005wrong_cyl\004scn_eq\003scn_not_fnd\002bad_cyl\001no_dam"
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#define NE7_ST2_CM 0x40 /* control mark; found deleted data */
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#define NE7_ST2_DD 0x20 /* data error in data field, CRC fail */
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#define NE7_ST2_WC 0x10 /* wrong cylinder, ID field mismatches cmd */
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#define NE7_ST2_SH 0x08 /* scan equal hit */
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#define NE7_ST2_SN 0x04 /* scan not satisfied */
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#define NE7_ST2_BC 0x02 /* bad cylinder, cylinder marked 0xff */
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#define NE7_ST2_MD 0x01 /* missing address mark in data field */
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/* Status register ST3 */
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#define NE7_ST3BITS "\020\010fault\007write_protect\006drdy\005tk0\004two_side\003side_sel\002"
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#define NE7_ST3_FT 0x80 /* fault; PC: n/a */
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#define NE7_ST3_WP 0x40 /* write protected */
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#define NE7_ST3_RD 0x20 /* ready; PC: always true */
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#define NE7_ST3_T0 0x10 /* track 0 */
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#define NE7_ST3_TS 0x08 /* two-sided; PC: n/a */
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#define NE7_ST3_HD 0x04 /* upper head select */
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#define NE7_ST3_US 0x03 /* unit select */
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/* Commands */
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/*
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* the top three bits -- where appropriate -- are set as follows:
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*
|
||||
* 0x80 - MT multi-track; allow both sides to be handled in single cmd
|
||||
* 0x40 - MFM modified frequency modulation; use MFM encoding
|
||||
* 0x20 - SK skip; skip sectors marked as "deleted"
|
||||
*/
|
||||
#define NE7CMD_READTRK 0x42 /* read whole track */
|
||||
#define NE7CMD_SPECIFY 3 /* specify drive parameters - requires unit
|
||||
parameters byte */
|
||||
#define NE7CMD_SENSED 4 /* sense drive - requires unit select byte */
|
||||
#define NE7CMD_WRITE 0xc5 /* write - requires eight additional bytes */
|
||||
#define NE7CMD_READ 0xe6 /* read - requires eight additional bytes */
|
||||
#define NE7CMD_FORMAT 0x4c /* format - requires five additional bytes */
|
||||
#define NE7CMD_RECAL 7 /* recalibrate drive - requires
|
||||
unit select byte */
|
||||
#define NE7CMD_SENSEI 8 /* sense controller interrupt status */
|
||||
#define NE7CMD_SEEK 15 /* seek drive - requires unit select byte
|
||||
#define NE7CMD_WRITEDEL 0xc9 /* write deleted data */
|
||||
#define NE7CMD_READID 0x4a /* read ID field */
|
||||
#define NE7CMD_READDEL 0xec /* read deleted data */
|
||||
#define NE7CMD_FORMAT 0x4d /* format - requires five additional bytes */
|
||||
#define NE7CMD_SEEK 0x0f /* seek drive - requires unit select byte
|
||||
and new cyl byte */
|
||||
#define NE7CMD_SCNEQU 0xf1 /* scan equal */
|
||||
#define NE7CMD_SCNLE 0xf9 /* scan less or equal */
|
||||
#define NE7CMD_SCNGE 0xfd /* scan greater or equal */
|
||||
|
||||
|
||||
/*
|
||||
* "specify" definitions
|
||||
*
|
||||
* acronyms (times are relative to a FDC clock of 8 MHz):
|
||||
* srt - step rate; PC usually 3 ms
|
||||
* hut - head unload time; PC usually maximum of 240 ms
|
||||
* hlt - head load time; PC usually minimum of 2 ms
|
||||
* nd - no DMA flag; PC usually not set (0)
|
||||
*/
|
||||
|
||||
#define NE7_SPEC_1(srt, hut) (((16 - (srt)) << 4) | (((hut) / 16)))
|
||||
#define NE7_SPEC_2(hlt, nd) (((hlt) & 0xFE) | ((nd) & 1))
|
||||
|
|
|
|||
780
sys/isa/fd.c
780
sys/isa/fd.c
File diff suppressed because it is too large
Load diff
|
|
@ -31,7 +31,7 @@
|
|||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)fd.c 7.4 (Berkeley) 5/25/91
|
||||
* $Id:$
|
||||
* $Id: fdc.h,v 1.2 1994/02/14 22:24:25 nate Exp $
|
||||
*
|
||||
*/
|
||||
|
||||
|
|
@ -49,12 +49,12 @@ struct fdc_data
|
|||
#define FDC_HASFTAPE 0x02
|
||||
#define FDC_TAPE_BUSY 0x04
|
||||
struct fd_data *fd;
|
||||
int fdu; /* the active drive */
|
||||
int fdu; /* the active drive */
|
||||
int state;
|
||||
int retry;
|
||||
int fdout; /* mirror of the w/o digital output reg */
|
||||
int status[7]; /* copy of the registers */
|
||||
struct buf head; /* Head of buf chain */
|
||||
struct buf rhead; /* Raw head of buf chain */
|
||||
int state;
|
||||
int retry;
|
||||
int status[7]; /* copy of the registers */
|
||||
};
|
||||
|
||||
/***********************************************************************\
|
||||
|
|
|
|||
|
|
@ -31,7 +31,7 @@
|
|||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)fdreg.h 7.1 (Berkeley) 5/9/91
|
||||
* $Id: fdreg.h,v 1.4 1994/02/07 22:12:42 alm Exp $
|
||||
* $Id: fdreg.h,v 1.5 1994/08/13 03:49:58 wollman Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
|
|
@ -42,24 +42,26 @@
|
|||
#include <i386/isa/ic/nec765.h>
|
||||
|
||||
/* registers */
|
||||
#define fdout 2 /* Digital Output Register (W) */
|
||||
#define FDOUT 2 /* Digital Output Register (W) */
|
||||
#define FDO_FDSEL 0x03 /* floppy device select */
|
||||
#define FDO_FRST 0x04 /* floppy controller reset */
|
||||
#define FDO_FDMAEN 0x08 /* enable floppy DMA and Interrupt */
|
||||
#define FDO_MOEN0 0x10 /* motor enable drive 0 */
|
||||
#define FDO_MOEN1 0x20 /* motor enable drive 1 */
|
||||
#define FDO_MOEN2 0x30 /* motor enable drive 2 */
|
||||
#define FDO_MOEN3 0x40 /* motor enable drive 3 */
|
||||
#define FDO_MOEN2 0x40 /* motor enable drive 2 */
|
||||
#define FDO_MOEN3 0x80 /* motor enable drive 3 */
|
||||
|
||||
#define fdsts 4 /* NEC 765 Main Status Register (R) */
|
||||
#define fddata 5 /* NEC 765 Data Register (R/W) */
|
||||
#define FDSTS 4 /* NEC 765 Main Status Register (R) */
|
||||
#define FDDATA 5 /* NEC 765 Data Register (R/W) */
|
||||
|
||||
#define fdctl 7 /* Control Register (W) */
|
||||
#define FDCTL 7 /* Control Register (W) */
|
||||
#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_125KBPS 0x03 /* 125KBPS FM drive transfer rate */
|
||||
/* for some controllers 1MPBS instead */
|
||||
|
||||
#define fdin 7 /* Digital Input Register (R) */
|
||||
#define FDIN 7 /* Digital Input Register (R) */
|
||||
#define FDI_DCHG 0x80 /* diskette has been changed */
|
||||
|
||||
/* requires drive and motor being selected */
|
||||
/* is cleared by any step pulse to drive */
|
||||
|
|
|
|||
|
|
@ -31,7 +31,7 @@
|
|||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)nec765.h 7.1 (Berkeley) 5/9/91
|
||||
* $Id$
|
||||
* $Id: nec765.h,v 1.2 1993/10/16 13:48:50 rgrimes Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
|
|
@ -47,26 +47,90 @@
|
|||
#define NE7_RQM 0x80 /* Diskette Controller ReQuest for Master */
|
||||
|
||||
/* Status register ST0 */
|
||||
#define NE7_ST0BITS "\020\010invld\007abnrml\006seek_cmplt\005drv_chck\004drive_rdy\003top_head"
|
||||
#define NE7_ST0BITS "\020\010invld\007abnrml\006seek_cmplt\005equ_chck\004drive_notrdy\003top_head"
|
||||
|
||||
#define NE7_ST0_IC 0xc0 /* interrupt completion code */
|
||||
|
||||
#define NE7_ST0_IC_RC 0xc0 /* terminated due to ready changed, n/a */
|
||||
#define NE7_ST0_IC_IV 0x80 /* invalid command; must reset FDC */
|
||||
#define NE7_ST0_IC_AT 0x40 /* abnormal termination, check error stat */
|
||||
#define NE7_ST0_IC_NT 0x00 /* normal termination */
|
||||
|
||||
#define NE7_ST0_SE 0x20 /* seek end */
|
||||
#define NE7_ST0_EC 0x10 /* equipment check, recalibrated but no trk0 */
|
||||
#define NE7_ST0_NR 0x08 /* not ready (n/a) */
|
||||
#define NE7_ST0_HD 0x04 /* upper head selected */
|
||||
#define NE7_ST0_DR 0x03 /* drive code */
|
||||
|
||||
/* Status register ST1 */
|
||||
#define NE7_ST1BITS "\020\010end_of_cyl\006bad_crc\005data_overrun\003sec_not_fnd\002write_protect\001no_am"
|
||||
|
||||
#define NE7_ST1_EN 0x80 /* end of cylinder, access past last record */
|
||||
#define NE7_ST1_DE 0x20 /* data error, CRC fail in ID or data */
|
||||
#define NE7_ST1_OR 0x10 /* DMA overrun, DMA failed to do i/o quickly */
|
||||
#define NE7_ST1_ND 0x04 /* no data, sector not found or CRC in ID f. */
|
||||
#define NE7_ST1_NW 0x02 /* not writeable, attempt to violate WP */
|
||||
#define NE7_ST1_MA 0x01 /* missing address mark (in ID or data field)*/
|
||||
|
||||
/* Status register ST2 */
|
||||
#define NE7_ST2BITS "\020\007ctrl_mrk\006bad_crc\005wrong_cyl\004scn_eq\003scn_not_fnd\002bad_cyl\001no_dam"
|
||||
|
||||
#define NE7_ST2_CM 0x40 /* control mark; found deleted data */
|
||||
#define NE7_ST2_DD 0x20 /* data error in data field, CRC fail */
|
||||
#define NE7_ST2_WC 0x10 /* wrong cylinder, ID field mismatches cmd */
|
||||
#define NE7_ST2_SH 0x08 /* scan equal hit */
|
||||
#define NE7_ST2_SN 0x04 /* scan not satisfied */
|
||||
#define NE7_ST2_BC 0x02 /* bad cylinder, cylinder marked 0xff */
|
||||
#define NE7_ST2_MD 0x01 /* missing address mark in data field */
|
||||
|
||||
/* Status register ST3 */
|
||||
#define NE7_ST3BITS "\020\010fault\007write_protect\006drdy\005tk0\004two_side\003side_sel\002"
|
||||
|
||||
#define NE7_ST3_FT 0x80 /* fault; PC: n/a */
|
||||
#define NE7_ST3_WP 0x40 /* write protected */
|
||||
#define NE7_ST3_RD 0x20 /* ready; PC: always true */
|
||||
#define NE7_ST3_T0 0x10 /* track 0 */
|
||||
#define NE7_ST3_TS 0x08 /* two-sided; PC: n/a */
|
||||
#define NE7_ST3_HD 0x04 /* upper head select */
|
||||
#define NE7_ST3_US 0x03 /* unit select */
|
||||
|
||||
/* Commands */
|
||||
/*
|
||||
* the top three bits -- where appropriate -- are set as follows:
|
||||
*
|
||||
* 0x80 - MT multi-track; allow both sides to be handled in single cmd
|
||||
* 0x40 - MFM modified frequency modulation; use MFM encoding
|
||||
* 0x20 - SK skip; skip sectors marked as "deleted"
|
||||
*/
|
||||
#define NE7CMD_READTRK 0x42 /* read whole track */
|
||||
#define NE7CMD_SPECIFY 3 /* specify drive parameters - requires unit
|
||||
parameters byte */
|
||||
#define NE7CMD_SENSED 4 /* sense drive - requires unit select byte */
|
||||
#define NE7CMD_WRITE 0xc5 /* write - requires eight additional bytes */
|
||||
#define NE7CMD_READ 0xe6 /* read - requires eight additional bytes */
|
||||
#define NE7CMD_FORMAT 0x4c /* format - requires five additional bytes */
|
||||
#define NE7CMD_RECAL 7 /* recalibrate drive - requires
|
||||
unit select byte */
|
||||
#define NE7CMD_SENSEI 8 /* sense controller interrupt status */
|
||||
#define NE7CMD_SEEK 15 /* seek drive - requires unit select byte
|
||||
#define NE7CMD_WRITEDEL 0xc9 /* write deleted data */
|
||||
#define NE7CMD_READID 0x4a /* read ID field */
|
||||
#define NE7CMD_READDEL 0xec /* read deleted data */
|
||||
#define NE7CMD_FORMAT 0x4d /* format - requires five additional bytes */
|
||||
#define NE7CMD_SEEK 0x0f /* seek drive - requires unit select byte
|
||||
and new cyl byte */
|
||||
#define NE7CMD_SCNEQU 0xf1 /* scan equal */
|
||||
#define NE7CMD_SCNLE 0xf9 /* scan less or equal */
|
||||
#define NE7CMD_SCNGE 0xfd /* scan greater or equal */
|
||||
|
||||
|
||||
/*
|
||||
* "specify" definitions
|
||||
*
|
||||
* acronyms (times are relative to a FDC clock of 8 MHz):
|
||||
* srt - step rate; PC usually 3 ms
|
||||
* hut - head unload time; PC usually maximum of 240 ms
|
||||
* hlt - head load time; PC usually minimum of 2 ms
|
||||
* nd - no DMA flag; PC usually not set (0)
|
||||
*/
|
||||
|
||||
#define NE7_SPEC_1(srt, hut) (((16 - (srt)) << 4) | (((hut) / 16)))
|
||||
#define NE7_SPEC_2(hlt, nd) (((hlt) & 0xFE) | ((nd) & 1))
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
/*
|
||||
* Copyright (C) 1992-1993 by Joerg Wunsch, Dresden
|
||||
* Copyright (C) 1992-1994 by Joerg Wunsch, Dresden
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
|
|
@ -11,17 +11,18 @@
|
|||
* 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 ``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 REGENTS OR CONTRIBUTORS 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.
|
||||
* 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.
|
||||
*
|
||||
* $Id$
|
||||
*/
|
||||
|
|
@ -96,5 +97,11 @@ struct fd_type {
|
|||
|
||||
#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 FDOPT_NORETRY 0x0001 /* no retries on failure (cleared on close) */
|
||||
|
||||
#endif /* !def _IOCTL_FD_H */
|
||||
|
|
|
|||
Loading…
Reference in a new issue