2000-05-06 21:34:20 +02:00
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/****************************************************************/
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/* */
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/* device.h */
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/* Device Driver Header File */
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/* */
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/* November 20, 1991 */
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/* */
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/* Copyright (c) 1995 */
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/* Pasquale J. Villani */
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/* All Rights Reserved */
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/* */
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/* This file is part of DOS-C. */
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/* */
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/* DOS-C is free software; you can redistribute it and/or */
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/* modify it under the terms of the GNU General Public License */
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/* as published by the Free Software Foundation; either version */
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/* 2, or (at your option) any later version. */
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/* */
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/* DOS-C is distributed in the hope that it will be useful, but */
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/* WITHOUT ANY WARRANTY; without even the implied warranty of */
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/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See */
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/* the GNU General Public License for more details. */
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/* */
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/* You should have received a copy of the GNU General Public */
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/* License along with DOS-C; see the file COPYING. If not, */
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/* write to the Free Software Foundation, 675 Mass Ave, */
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/* Cambridge, MA 02139, USA. */
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/****************************************************************/
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#ifdef MAIN
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#ifdef VERSION_STRINGS
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static BYTE *device_hRcsId = "$Id$";
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#endif
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#endif
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/*
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* $Log$
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2000-05-11 06:24:51 +02:00
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* Revision 1.3 2000/05/11 04:24:51 jimtabor
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* Added Boot blk structs
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*
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2000-05-08 06:30:00 +02:00
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* Revision 1.2 2000/05/08 04:28:22 jimtabor
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* Update CVS to 2020
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*
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2000-05-11 06:24:51 +02:00
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* $Log$
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* Revision 1.3 2000/05/11 04:24:51 jimtabor
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* Added Boot blk structs
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*
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2000-05-08 06:30:00 +02:00
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* Revision 1.4 2000/04/29 05:13:16 jtabor
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* Added new functions and clean up code
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2000-05-06 21:34:20 +02:00
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*
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* Revision 1.3 2000/03/09 06:06:38 kernel
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* 2017f updates by James Tabor
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*
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* Revision 1.2 1999/04/04 18:50:14 jprice
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* no message
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*
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* Revision 1.1.1.1 1999/03/29 15:39:26 jprice
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* New version without IPL.SYS
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*
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* Revision 1.5 1999/02/08 05:58:24 jprice
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* Added Pat's 1937 kernel patches
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*
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* Revision 1.4 1999/02/04 03:08:47 jprice
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* no message
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*
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* Revision 1.3 1999/02/01 01:40:06 jprice
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* Clean up
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*
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* Revision 1.2 1999/01/22 04:17:40 jprice
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* Formating
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*
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* Revision 1.1.1.1 1999/01/20 05:51:01 jprice
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* Imported sources
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*
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*
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* Rev 1.8 06 Dec 1998 8:41:30 patv
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* Changed for new I/O subsystem
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*
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* Rev 1.7 11 Jan 1998 2:05:54 patv
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* Added functionality to ioctl.
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*
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* Rev 1.6 04 Jan 1998 23:14:20 patv
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* Changed Log for strip utility
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*
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* Rev 1.5 16 Jan 1997 12:46:06 patv
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* pre-Release 0.92 feature additions
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*
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* Rev 1.4 29 May 1996 21:25:12 patv
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* bug fixes for v0.91a
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*
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* Rev 1.3 19 Feb 1996 3:15:30 patv
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* Added NLS, int2f and config.sys processing
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*
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* Rev 1.2 01 Sep 1995 17:35:40 patv
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* First GPL release.
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*
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* Rev 1.1 30 Jul 1995 20:43:48 patv
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* Eliminated version strings in ipl
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*
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* Rev 1.0 02 Jul 1995 10:39:30 patv
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* Initial revision.
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*/
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/*
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* Status Word Bits
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*/
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#define S_ERROR 0x8000 /* Error bit */
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#define S_BUSY 0x0200 /* Device busy bit */
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#define S_DONE 0x0100 /* Device operation completed */
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#define S_MASK 0x00ff /* Mask to extract error code */
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/*
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* MEDIA Descriptor Byte Bits
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*/
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#define MD_2SIDE 1 /* MEDIA is two sided */
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#define MD_8SECTOR 2 /* MEDIA is eight sectored */
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#define MD_REMOVABLE 4 /* MEDIA is removable (floppy) */
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/*
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* Media Return Codes
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*/
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#define M_CHANGED -1 /* MEDIA was changed */
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#define M_DONT_KNOW 0 /* MEDIA state unkown */
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#define M_NOT_CHANGED 1 /* MEDIA was not changed */
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/*
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* Error Return Codes
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*/
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#define E_WRPRT 0 /* Write Protect */
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#define E_UNIT 1 /* Unknown Unit */
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#define E_NOTRDY 2 /* Device Not Ready */
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#define E_CMD 3 /* Unknown Command */
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#define E_CRC 4 /* Crc Error */
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#define E_LENGTH 5 /* Bad Length */
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#define E_SEEK 6 /* Seek Error */
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#define E_MEDIA 7 /* Unknown MEDIA */
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#define E_NOTFND 8 /* Sector Not Found */
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#define E_PAPER 9 /* No Paper */
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#define E_WRITE 10 /* Write Fault */
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#define E_READ 11 /* Read Fault */
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#define E_FAILURE 12 /* General Failure */
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/*
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* Command codes
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*/
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#define C_INIT 0x00 /* Initialize */
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#define C_MEDIACHK 0x01 /* MEDIA Check */
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#define C_BLDBPB 0x02 /* Build BPB */
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#define C_IOCTLIN 0x03 /* Ioctl In */
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#define C_INPUT 0x04 /* Input (Read) */
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#define C_NDREAD 0x05 /* Non-destructive Read */
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#define C_ISTAT 0x06 /* Input Status */
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#define C_IFLUSH 0x07 /* Input Flush */
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#define C_OUTPUT 0x08 /* Output (Write) */
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#define C_OUTVFY 0x09 /* Output with verify */
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#define C_OSTAT 0x0a /* Output */
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#define C_OFLUSH 0x0b /* Output Flush */
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#define C_IOCTLOUT 0x0c /* Ioctl Out */
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#define C_OPEN 0x0d /* Device Open */
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#define C_CLOSE 0x0e /* Device Close */
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#define C_REMMEDIA 0x0f /* Removable MEDIA */
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#define C_OUB 0x10 /* Output till busy */
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#define C_GENIOCTL 0x13 /* Generic Ioctl */
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#define C_GETLDEV 0x17 /* Get Logical Device */
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#define C_SETLDEV 0x18 /* Set Logical Device */
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#define C_IOCTLQRY 0x19 /* Ioctl Query */
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/*
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* Convienence macros
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*/
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#define failure(x) (S_ERROR+S_DONE+x)
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#ifndef TRUE
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#define TRUE 1
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#endif
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#ifndef FALSE
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#define FALSE 0
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#endif
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#define mk_offset(far_ptr) ((UWORD)(far_ptr))
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#define mk_segment(far_ptr) ((UWORD)((ULONG)(far_ptr) >> 16))
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#define far_ptr(seg, off) ((VOID FAR *)(((ULONG)(off))+((ULONG)(seg) << 16)))
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/*
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* structures
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*/
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/* Device header */
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struct dhdr
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{
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struct dhdr
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FAR *dh_next;
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UWORD dh_attr;
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VOID(*dh_strategy) ();
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VOID(*dh_interrupt) ();
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BYTE dh_name[8];
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};
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#define ATTR_CHAR 0x8000
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#define ATTR_IOCTL 0x4000
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#define ATTR_BLDFAT 0x2000
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2000-05-11 06:24:51 +02:00
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#define ATTR_REMOTE 0x1000
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2000-05-06 21:34:20 +02:00
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#define ATTR_EXCALLS 0x0800
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#define ATTR_QRYIOCTL 0x0080
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#define ATTR_GENIOCTL 0x0040
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#define ATTR_RAW 0x0400
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#define ATTR_FASTCON 0x0010
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#define ATTR_CLOCK 0x0008
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#define ATTR_NULL 0x0004
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#define ATTR_CONOUT 0x0002
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#define ATTR_HUGE 0x0002
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#define ATTR_CONIN 0x0001
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/* */
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/* Bios Parameter Block structure */
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/* */
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/* The following offsets are computed as byte offsets and are based on */
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/* the struct below. The struct itself cannot be used because on some */
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/* compilers, structure alignement may be forced, throwing following */
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/* fields off (e.g. - BYTE, followed by a WORD may have a byte of fill */
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/* inserted in between; the WORD would then be at offset 2, not 1). */
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/* */
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#define BPB_NBYTE 0
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#define BPB_NSECTOR 2
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#define BPB_NRESERVED 3
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#define BPB_NFAT 5
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#define BPB_NDIRENT 6
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#define BPB_NSIZE 8
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#define BPB_MDESC 10
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#define BPB_NFSECT 11
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#define BPB_NSECS 13
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#define BPB_NHEADS 15
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#define BPB_HIDDEN 17
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#define BPB_HUGE 21
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#define BPB_SIZEOF 25
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typedef struct
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{
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UWORD bpb_nbyte; /* Bytes per Sector */
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UBYTE bpb_nsector; /* Sectors per Allocation Unit */
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UWORD bpb_nreserved; /* # Reserved Sectors */
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UBYTE bpb_nfat; /* # FAT's */
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UWORD bpb_ndirent; /* # Root Directory entries */
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UWORD bpb_nsize; /* Size in sectors */
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UBYTE bpb_mdesc; /* MEDIA Descriptor Byte */
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UWORD bpb_nfsect; /* FAT size in sectors */
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UWORD bpb_nsecs; /* Sectors per track */
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UWORD bpb_nheads; /* Number of heads */
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ULONG bpb_hidden; /* Hidden sectors */
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ULONG bpb_huge; /* Size in sectors if */
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/* bpb_nsize== 0 */
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}
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bpb;
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2000-05-08 06:30:00 +02:00
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struct gblkio
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{
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UBYTE gbio_spcfunbit;
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UBYTE gbio_devtype;
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UWORD gbio_devattrib;
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UWORD gbio_ncyl;
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UBYTE gbio_media;
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bpb gbio_bpb;
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UWORD gbio_nsecs;
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};
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2000-05-11 06:24:51 +02:00
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struct Gioc_media
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{
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WORD ioc_level;
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ULONG ioc_serialno;
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BYTE ioc_volume[11];
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BYTE ioc_fstype[8];
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};
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2000-05-06 21:34:20 +02:00
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/* */
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/* Boot Block (Super Block) */
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/* */
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/* See BPB comments for the offsets below */
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/* */
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#define BT_JUMP 0
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#define BT_OEM 3
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#define BT_BPB 11
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#define BT_SIZEOF 36
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typedef struct
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{
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2000-05-08 06:30:00 +02:00
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BYTE bt_jump[3]; /* Boot Jump opcodes */
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BYTE bt_oem[8]; /* OEM Name */
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bpb bt_bpb; /* BPB for this media/device */
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WORD bt_nsecs; /* # Sectors per Track */
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WORD bt_nheads; /* # Heads */
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WORD bt_hidden; /* # Hidden sectors */
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LONG bt_huge; /* use if nsecs == 0 */
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BYTE bt_drvno;
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BYTE bt_reserv;
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BYTE bt_btid;
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ULONG bt_serialno;
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BYTE bt_volume[11];
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BYTE bt_fstype[8];
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2000-05-06 21:34:20 +02:00
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}
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boot;
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typedef boot super; /* Alias for boot structure */
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typedef struct
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{
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BYTE r_length; /* Request Header length */
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BYTE r_unit; /* Unit Code */
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BYTE r_command; /* Command Code */
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WORD r_status; /* Status */
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BYTE r_reserved[8]; /* DOS Reserved Area */
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union
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{
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struct
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{
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BYTE _r_nunits; /* number of units */
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BYTE FAR *_r_endaddr; /* Ending Address */
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bpb *FAR * _r_bpbptr; /* ptr to BPB array */
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BYTE _r_firstunit;
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}
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_r_init;
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struct
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{
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BYTE _r_meddesc; /* MEDIA Descriptor */
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BYTE _r_retcode; /* Return Code */
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BYTE FAR
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* _r_vid; /* volume id */
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}
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_r_media;
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struct
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{
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BYTE _r_meddesc; /* MEDIA Descriptor */
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boot FAR
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* _r_fat; /* boot sector pointer */
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bpb FAR
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* _r_bpbpt; /* ptr to BPB table */
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}
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_r_bpb;
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struct
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{
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BYTE _r_meddesc; /* MEDIA Descriptor */
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BYTE FAR
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* _r_trans; /* Transfer Address */
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UWORD _r_count; /* Byte/Sector Count */
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UWORD _r_start; /* Starting Sector No. */
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BYTE FAR
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* _r_vid; /* Pointer to volume id */
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LONG _r_huge; /* for > 32Mb drives */
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}
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_r_rw;
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struct
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{
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BYTE _r_ndbyte; /* Byte Read From Device */
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}
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_r_nd;
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}
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_r_x;
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}
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request;
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#define HUGECOUNT 0xffff
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#define MAXSHORT 0xffffl
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/*
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* Macros to assist request structure legibility
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*/
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/* Init packet macros */
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#define r_nunits _r_x._r_init._r_nunits
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#define r_endaddr _r_x._r_init._r_endaddr
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#define r_bpbptr _r_x._r_init._r_bpbptr
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#define r_firstunit _r_x._r_init._r_firstunit
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/* MEDIA Check packet macros */
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#define r_mcmdesc _r_x._r_media._r_meddesc
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#define r_mcretcode _r_x._r_media._r_retcode
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#define r_mcvid _r_x._r_media._r_vid
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/* Build BPB packet macros */
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#define r_bpmdesc _r_x._r_bpb._r_meddesc
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#define r_bpfat _r_x._r_bpb._r_fat
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#define r_bpptr _r_x._r_bpb._r_bpbpt
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/* rw packet macros */
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#define r_meddesc _r_x._r_rw._r_meddesc
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#define r_trans _r_x._r_rw._r_trans
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#define r_count _r_x._r_rw._r_count
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#define r_start _r_x._r_rw._r_start
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#define r_rwvid _r_x._r_rw._r_vid
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#define r_huge _r_x._r_rw._r_huge
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/* ndread packet macros */
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#define r_ndbyte _r_x._r_nd._r_ndbyte
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/*
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*interrupt support (spl & splx) support - IBM style
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*/
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#define I_NONE 0 /* Initial value */
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/* predefined interrupt levels - 8259 support */
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#define IRQ0 0x01 /* Level 0 - highest */
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#define IRQ1 0x02
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#define IRQ2 0x04
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#define IRQ3 0x08
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#define IRQ4 0x10
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#define IRQ5 0x20
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#define IRQ6 0x40
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#define IRQ7 0x80 /* Level 7 - lowest */
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/* standard hardware configuration */
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#define I_RTC IRQ0 /* Timer */
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#define I_KBD IRQ1 /* Keyboard */
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#define I_COM2 IRQ3 /* COM1: */
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#define I_COM1 IRQ4 /* COM2: */
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#define I_HDC IRQ5 /* Fixed disk */
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#define I_FDC IRQ6 /* Diskette */
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#define I_PRT IRQ7 /* Printer */
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/* standard hardware vectors - 8259 defined */
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#define V_RTC 0x08 /* Timer */
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#define V_KBD 0x09 /* Keyboard */
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#define V_LEV2 0x0a /* Level 2 - uncomitted */
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#define V_COM2 0x0b /* COM1: */
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#define V_COM1 0x0c /* COM2: */
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#define V_HDC 0x0d /* Fixed disk */
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#define V_FDC 0x0e /* Diskette */
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#define V_PRT 0x0f /* Printer */
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#define V_LEV0 0x08 /* Level 0 - highest */
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#define V_LEV1 0x09
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|
#define V_LEV2 0x0a /* Level 2 - uncomitted */
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#define V_LEV3 0x0b
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#define V_LEV4 0x0c
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#define V_LEV5 0x0d
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#define V_LEV6 0x0e
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|
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|
#define V_LEV7 0x0f /* Level 7 - lowest */
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|
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|
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/*
|
|
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|
|
*/
|
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|
|
typedef request FAR *rqptr;
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|
|
typedef bpb FAR *bpbptr;
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|
|
typedef BYTE FAR *byteptr;
|
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|
|
typedef struct dhdr FAR *dhdrptr;
|
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|
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|
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/*
|
|
|
|
|
* externals
|
|
|
|
|
*/
|
|
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|
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|
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|
|
extern BYTE FAR *device_end();
|
|
|
|
|
|
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|
|
/*
|
|
|
|
|
* end of device.h
|
|
|
|
|
*/
|
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|
