add directory Minix

2024-02-19 00:21:39 -05:00
parent 56596ada90
commit 5a46ddb732
2923 changed files with 1764412 additions and 0 deletions
--- a/Minix/1.7.5/DOSUTILS/FIPS/SOURCE/DISK_IO.H
+++ b/Minix/1.7.5/DOSUTILS/FIPS/SOURCE/DISK_IO.H
@@ -0,0 +1,138 @@
+/*
+	FIPS - the First nondestructive Interactive Partition Splitting program
+
+	Module disk_io.h
+
+	RCS - Header:
+	$Header: c:/daten/fips/source/main/RCS/disk_io.h 1.4 1995/01/19 00:01:25 schaefer Exp schaefer $
+
+	Copyright (C) 1993 Arno Schaefer
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program; if not, write to the Free Software
+	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+
+	Report problems and direct all questions to:
+
+	schaefer@rbg.informatik.th-darmstadt.de
+*/
+
+#ifndef DISK_IO_H
+#define DISK_IO_H
+
+#include "types.h"
+
+
+/* ----------------------------------------------------------------------- */
+/* Structure to hold information about the drive geometry                  */
+/* ----------------------------------------------------------------------- */
+
+struct drive_geometry
+{
+	dword heads;
+	dword cylinders;
+	dword sectors;
+};
+
+
+/* ----------------------------------------------------------------------- */
+/* Low level structure physical_drive, contains drive number and geometry, */
+/* as well as low level sector read and write routines                     */
+/* Geometry is determined on initialization, errorcode contains error      */
+/* number after call to get_geometry() and reset().                        */
+/* Initialization requires number (e.g. physical_drive drive1 (0x80);).    */
+/*                                                                         */
+/* Read and write are called max. 3 times in case of failure, return code  */
+/* contains 0 if successful. Sector CRC is verified after write.           */
+/* sector_number is absolute logical sector number (0 = master boot record)*/
+/* ----------------------------------------------------------------------- */
+
+class physical_drive
+{
+protected:
+	virtual void get_geometry (void);
+
+public:
+// constructors & operators
+
+	physical_drive (int number);
+	physical_drive (physical_drive &pd);
+	void operator= (physical_drive &pd);
+
+// public data
+
+	int number;
+	int errorcode;
+	drive_geometry geometry;
+
+// functions
+
+	virtual void reset (void);
+
+	int read_sector (struct sector* sector, dword sector_number);
+	int write_sector (struct sector* sector, dword sector_number);
+};
+
+
+/* ----------------------------------------------------------------------- */
+/* Physical_sector_no holds and calculates physical sector number (Head,   */
+/* Cylinder, Sector). Number is calculated on initialization. Log_sector   */
+/* is absolute logical sector number (0 = master boot record). Usage:      */
+/* physical_sector_no mbr (0,geometry);                                    */
+/* physical_sector_no mbr (0,0,1);                                         */
+/* ----------------------------------------------------------------------- */
+
+struct physical_sector_no
+{
+// public data
+
+	dword head;
+	dword cylinder;
+	dword sector;
+
+// constructors
+
+	physical_sector_no (dword logical_sector, const drive_geometry &geometry);
+	physical_sector_no (dword head, dword cylinder, dword sector)
+	{
+		physical_sector_no::head = head;
+		physical_sector_no::cylinder = cylinder;
+		physical_sector_no::sector = sector;
+	}
+};
+
+
+/* ----------------------------------------------------------------------- */
+/* Structure sector - contains only sector data                            */
+/* ----------------------------------------------------------------------- */
+
+struct sector
+{
+	byte data[512];
+};
+
+
+/* ----------------------------------------------------------------------- */
+/* Prototype for bios call get_disk_type - returns 0 if drive not present. */
+/* Valid drive numbers: 0 - 255, result: 1 - floppy without disk change    */
+/* detection, 2 - floppy with disk change detection, 3 - harddisk          */
+/* ----------------------------------------------------------------------- */
+
+int get_disk_type (int drive_number);
+
+/* Bios call get_no_of_drives */
+
+int get_no_of_drives (void);
+
+#endif