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#ifndef __FLOPPY_H_LOADED
#define __FLOPPY_H_LOADED
/*****************************************************************************
Copyright © 1993, 1994 Digital Equipment Corporation,
Maynard, Massachusetts.
All Rights Reserved
Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted, provided
that the copyright notice and this permission notice appear in all copies
of software and supporting documentation, and that the name of Digital not
be used in advertising or publicity pertaining to distribution of the software
without specific, written prior permission. Digital grants this permission
provided that you prominently mark, as not part of the original, any
modifications made to this software or documentation.
Digital Equipment Corporation disclaims all warranties and/or guarantees
with regard to this software, including all implied warranties of fitness for
a particular purpose and merchantability, and makes no representations
regarding the use of, or the results of the use of, the software and
documentation in terms of correctness, accuracy, reliability, currentness or
otherwise; and you rely on the software, documentation and results solely at
your own risk.
******************************************************************************/
/*
* $Id: floppy.h,v 1.1.1.1 1997/10/30 23:27:15 verghese Exp $;
*/
/*
* $Log: floppy.h,v $
* Revision 1.1.1.1 1997/10/30 23:27:15 verghese
* current 10/29/97
*
* Revision 1.5 1994/08/05 20:13:47 fdh
* Updated Copyright header and RCS $Id: identifier.
*
* Revision 1.4 1994/06/22 15:22:35 rusling
* Fixed up minor OSF build problem. Changed fdacmd()
* definition.
*
* Revision 1.3 1994/06/20 14:18:59 fdh
* Fixup header file preprocessor #include conditionals.
*
* Revision 1.2 1994/06/17 19:34:01 fdh
* Clean-up...
*
* Revision 1.1 1993/06/08 19:56:13 fdh
* Initial revision
*
*/
#define TRUE 1
#define FALSE 0
#define REALFLOPPY 1
/* pic */
#define PICBOCW 0x20
#define PICBIRR 0x20
#define READIRR 0x0A
#define FDAMASK 0x40
/* dma */
#define DMACMD03 0x08
#define DMACMD47 0xD0
#define DMAMODE03 0x0B
#define DMAMODE47 0xD6
#define DMAXMODE03 0x40B
#define DMAXMODE47 0x4D6
#define DMAOFFS 0x04
#define DMALPAG 0x81
#define DMAHPAG 0x481
#define DMACNT 0x05
#define DMAHCNT 0x405
#define DMACBP 0x0C
#define DMAMASK03 0x0A
#define DMAMASK47 0xD4
/* fda */
#define FDADCR 0x03F2
#define FDAMSR 0x03F4
#define FDADR 0x03F5
#define FDADRR 0x03F7
#define FDADCB 0x03F7
/* dcr */
#define DCRSELA 0x00
#define DCRSELB 0x01
#define DCRSELC 0x02
#define DCRSELD 0x03
#define DCRNRES 0x04
#define DCRENAB 0x08
#define DCRMTRA 0x10
#define DCRMTRB 0x20
#define DCRMTRC 0x40
#define DCRMTRD 0x80
/* msr */
#define MSRDIO 0x40
#define MSRRQM 0x80
/* drr */
#define DRR500 0x00
#define DRR250 0x02
/* dcb */
#define DCBNCHG 0x80
/* st0 */
#define ST0IC 0xC0
#define ST0NT 0x00
#define ST0NR 0x08
/* st1 */
#define ST1NW 0x02
/* cmd */
#define NREAD 0x66
#define NWRITE 0x45
#define NRECAL 0x07
#define NSEEK 0x0F
#define NSINTS 0x08
#define NSPEC 0x03
#define FDTOMEM 0
#define MEMTOFD 1
#define NCMD 9
#define NSTS 7
#define UNITNUM 0
#define UNITSEL (DCRSELA)
#define UNITMTR (DCRMTRA)
#define lSRT 0xE0 /* 4 mS */
#define lHUT 0x08 /* 256 mS */
#define hSRT 0xC0 /* 4 mS */
#define hHUT 0x0F /* 256 mS */
#define HLT 0x02 /* 4 mS */
#define ND 0x00 /* Use DMA */
int fdactrk;
static void read_sector(int sec , int loc);
static int get_file_info(char * file2load , int flag);
static void prep_filename(ub * fn , ub * nfn , ub * ext);
static int get_boot_info(void );
static void load_file(void );
static int get_sec(int gcluster);
static int get_next_cluster(ui gcluster , ui ifat);
static void fdainit(int rate);
static void fdaspinup(void );
static void fdaspindown(void );
static int fdaio(char * buf , int sec , int type);
static void fdacmd(unsigned char cmd[] , int ncmd);
static int fdasts(void );
static void fdawait(void );
static void fdasleep(int nmsec);
static void init_pic(void );
#define fdREAD 0 /* read command */
#define fdWRITE 1 /* write command */
#endif /* __FLOPPY_H_LOADED */
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