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Diffstat (limited to 'e2fslib/dosio.h')
| -rw-r--r-- | e2fslib/dosio.h | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/e2fslib/dosio.h b/e2fslib/dosio.h deleted file mode 100644 index a0d652d..0000000 --- a/e2fslib/dosio.h +++ /dev/null @@ -1,153 +0,0 @@ -/* - * v1.0 - * - * Disk I/O include file for the ext2fs/DOS library. - * - * Copyright (c) 1997 Mark Habersack - * This file may be distributed under the terms of the GNU Public License. - * - */ -#ifndef __diskio_h -#define __diskio_h -#ifdef __TURBOC__ -#ifndef __LARGE__ -# error "ext2fs/DOS library requires LARGE model!" -#endif -#endif - -#ifdef __TURBOC__ -#include "msdos.h" -#endif - -/* - * A helper structure used in LBA => CHS conversion - */ -typedef struct -{ - unsigned short cyl; /* Cylinder (or track) */ - unsigned short head; - unsigned short sector; - unsigned short offset; /* Offset of byte within the sector */ -} CHS; - -/* - * All partition data we need is here - */ -typedef struct -{ - char *dev; /* _Linux_ device name (like "/dev/hda1") */ - unsigned char phys; /* Physical DOS drive number */ - unsigned long start; /* LBA address of partition start */ - unsigned long len; /* length of partition in sectors */ - unsigned char pno; /* Partition number (read from *dev) */ - - /* This partition's drive geometry */ - unsigned short cyls; - unsigned short heads; - unsigned short sects; -} PARTITION; - -/* - * PC partition table entry format - */ -#ifdef __DJGPP__ -#pragma pack(1) -#endif -typedef struct -{ - unsigned char active; - unsigned char start_head; - unsigned char start_sec; - unsigned char start_cyl; - unsigned char type; - unsigned char end_head; - unsigned char end_sec; - unsigned char end_cyl; - unsigned long first_sec_rel; - unsigned long size; -} PTABLE_ENTRY; -#ifdef __DJGPP__ -#pragma pack() -#endif - -/* - * INT 0x13 operation codes - */ -#define DISK_READ 0x02 -#define DISK_WRITE 0x03 -#define DISK_GET_GEOMETRY 0x08 -#define DISK_READY 0x10 - -/* - * Errors to put in _dio_error - */ -#define ERR_BADDEV 0x00000001L -#define ERR_HARDWARE 0x00000002L -#define ERR_NOTSUPP 0x00000003L -#define ERR_NOTEXT2FS 0x00000004L -#define ERR_EMPTYPART 0x00000005L -#define ERR_LINUXSWAP 0x00000006L - -/* - * Functions in diskio.c - */ - -/* - * Variable contains last module's error - */ -extern unsigned long _dio_error; - -/* - * This one contains last hardware error (if _dio_error == ERR_HARDWARE) - */ -extern unsigned long _dio_hw_error; - -/* - * Macros to check for disk hardware errors - */ -#define HW_OK() ((unsigned char)_dio_hw_error == 0x00) -#define HW_BAD_CMD() ((unsigned char)_dio_hw_error == 0x01) -#define HW_NO_ADDR_MARK() ((unsigned char)_dio_hw_error == 0x02) -#define HW_WRITE_PROT() ((unsigned char)_dio_hw_error == 0x03) -#define HW_NO_SECTOR() ((unsigned char)_dio_hw_error == 0x04) -#define HW_RESET_FAIL() ((unsigned char)_dio_hw_error == 0x05) -#define HW_DISK_CHANGED() ((unsigned char)_dio_hw_error == 0x06) -#define HW_DRIVE_FAIL() ((unsigned char)_dio_hw_error == 0x07) -#define HW_DMA_OVERRUN() ((unsigned char)_dio_hw_error == 0x08) -#define HW_DMA_BOUNDARY() ((unsigned char)_dio_hw_error == 0x09) -#define HW_BAD_SECTOR() ((unsigned char)_dio_hw_error == 0x0A) -#define HW_BAD_TRACK() ((unsigned char)_dio_hw_error == 0x0B) -#define HW_UNSUPP_TRACK() ((unsigned char)_dio_hw_error == 0x0C) -#define HW_BAD_CRC_ECC() ((unsigned char)_dio_hw_error == 0x10) -#define HW_CRC_ECC_CORR() ((unsigned char)_dio_hw_error == 0x11) -#define HW_CONTR_FAIL() ((unsigned char)_dio_hw_error == 0x20) -#define HW_SEEK_FAIL() ((unsigned char)_dio_hw_error == 0x40) -#define HW_ATTACH_FAIL() ((unsigned char)_dio_hw_error == 0x80) -#define HW_DRIVE_NREADY() ((unsigned char)_dio_hw_error == 0xAA) -#define HW_UNDEF_ERROR() ((unsigned char)_dio_hw_error == 0xBB) -#define HW_WRITE_FAULT() ((unsigned char)_dio_hw_error == 0xCC) -#define HW_STATUS_ERROR() ((unsigned char)_dio_hw_error == 0xE0) -#define HW_SENSE_FAIL() ((unsigned char)_dio_hw_error == 0xFF) - - -/* - * Open the specified partition. - * String 'dev' must have a format: - * - * /dev/{sd|hd|fd}[X] - * - * where, - * - * only one of the option in curly braces can be used and X is an optional - * partition number for the given device. If X is not specified, function - * scans the drive's partition table in search for the first Linux ext2fs - * partition (signature 0x83). Along the way it dives into every extended - * partition encountered. - * Scan ends if either (a) there are no more used partition entries, or - * (b) there is no Xth partition. - * - * Routine returns 0 on success and !=0 otherwise. - */ -int open_partition(char *dev); - -#endif /* __diskio_h */ |