diff options
Diffstat (limited to 'fs/fdos/dos.h')
| -rw-r--r-- | fs/fdos/dos.h | 159 |
1 files changed, 0 insertions, 159 deletions
diff --git a/fs/fdos/dos.h b/fs/fdos/dos.h deleted file mode 100644 index b0b7d2a..0000000 --- a/fs/fdos/dos.h +++ /dev/null @@ -1,159 +0,0 @@ -/* - * (C) Copyright 2002 - * Stäubli Faverges - <www.staubli.com> - * Pierre AUBERT p.aubert@staubli.com - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#ifndef _DOS_H_ -#define _DOS_H_ - -/* Definitions for Dos diskettes */ - -/* General definitions */ -#define SZ_STD_SECTOR 512 /* Standard sector size */ -#define MDIR_SIZE 32 /* Direntry size */ -#define FAT_BITS 12 /* Diskette use 12 bits fat */ - -#define MAX_PATH 128 /* Max size of the MSDOS PATH */ -#define MAX_DIR_SECS 64 /* Taille max d'un repertoire (en */ - /* secteurs) */ -/* Misc. definitions */ -#define DELMARK '\xe5' -#define EXTENDED_BOOT (0x29) -#define MEDIA_STD (0xf0) -#define JUMP_0_1 (0xe9) -#define JUMP_0_2 (0xeb) - -/* Boot size is 256 bytes, but we need to read almost a sector, then - assume bootsize is 512 */ -#define BOOTSIZE 512 - -/* Fat definitions for 12 bits fat */ -#define FAT12_MAX_NB 4086 -#define FAT12_LAST 0x0ff6 -#define FAT12_END 0x0fff - -/* file attributes */ -#define ATTR_READONLY 0x01 -#define ATTR_HIDDEN 0x02 -#define ATTR_SYSTEM 0x04 -#define ATTR_VOLUME 0x08 -#define ATTR_DIRECTORY 0x10 -#define ATTR_ARCHIVE 0x20 -#define ATTR_VSE 0x0f - -/* Name format */ -#define EXTCASE 0x10 -#define BASECASE 0x8 - -/* Definition of the boot sector */ -#define BANNER_LG 8 -#define LABEL_LG 11 - -typedef struct bootsector -{ - unsigned char jump [3]; /* 0 Jump to boot code */ - char banner [BANNER_LG]; /* 3 OEM name & version */ - unsigned short secsiz; /* 11 Bytes per sector hopefully 512 */ - unsigned char clsiz; /* 13 Cluster size in sectors */ - unsigned short nrsvsect; /* 14 Number of reserved (boot) sectors */ - unsigned char nfat; /* 16 Number of FAT tables hopefully 2 */ - unsigned short dirents; /* 17 Number of directory slots */ - unsigned short psect; /* 19 Total sectors on disk */ - unsigned char descr; /* 21 Media descriptor=first byte of FAT */ - unsigned short fatlen; /* 22 Sectors in FAT */ - unsigned short nsect; /* 24 Sectors/track */ - unsigned short nheads; /* 26 Heads */ - unsigned int nhs; /* 28 number of hidden sectors */ - unsigned int bigsect; /* 32 big total sectors */ - unsigned char physdrive; /* 36 physical drive ? */ - unsigned char reserved; /* 37 reserved */ - unsigned char dos4; /* 38 dos > 4.0 diskette */ - unsigned int serial; /* 39 serial number */ - char label [LABEL_LG]; /* 43 disk label */ - char fat_type [8]; /* 54 FAT type */ - unsigned char res_2m; /* 62 reserved by 2M */ - unsigned char CheckSum; /* 63 2M checksum (not used) */ - unsigned char fmt_2mf; /* 64 2MF format version */ - unsigned char wt; /* 65 1 if write track after format */ - unsigned char rate_0; /* 66 data transfer rate on track 0 */ - unsigned char rate_any; /* 67 data transfer rate on track<>0 */ - unsigned short BootP; /* 68 offset to boot program */ - unsigned short Infp0; /* 70 T1: information for track 0 */ - unsigned short InfpX; /* 72 T2: information for track<>0 */ - unsigned short InfTm; /* 74 T3: track sectors size table */ - unsigned short DateF; /* 76 Format date */ - unsigned short TimeF; /* 78 Format time */ - unsigned char junk [BOOTSIZE - 80]; /* 80 remaining data */ -} __attribute__ ((packed)) BootSector_t; - -/* Structure d'une entree de repertoire */ -typedef struct directory { - char name [8]; /* file name */ - char ext [3]; /* file extension */ - unsigned char attr; /* attribute byte */ - unsigned char Case; /* case of short filename */ - unsigned char reserved [9]; /* ?? */ - unsigned char time [2]; /* time stamp */ - unsigned char date [2]; /* date stamp */ - unsigned short start; /* starting cluster number */ - unsigned int size; /* size of the file */ -} __attribute__ ((packed)) Directory_t; - - -#define MAX_VFAT_SUBENTRIES 20 -#define VSE_NAMELEN 13 - -#define VSE1SIZE 5 -#define VSE2SIZE 6 -#define VSE3SIZE 2 - -#define VBUFSIZE ((MAX_VFAT_SUBENTRIES * VSE_NAMELEN) + 1) - -#define MAX_VNAMELEN (255) - -#define VSE_PRESENT 0x01 -#define VSE_LAST 0x40 -#define VSE_MASK 0x1f - -/* Flag used by vfat_lookup */ -#define DO_OPEN 1 -#define ACCEPT_PLAIN 0x20 -#define ACCEPT_DIR 0x10 -#define ACCEPT_LABEL 0x08 -#define SINGLE 2 -#define MATCH_ANY 0x40 - -struct vfat_subentry { - unsigned char id; /* VSE_LAST pour la fin, VSE_MASK */ - /* pour un VSE */ - char text1 [VSE1SIZE * 2]; /* Caracteres encodes sur 16 bits */ - unsigned char attribute; /* 0x0f pour les VFAT */ - unsigned char hash1; /* toujours 0 */ - unsigned char sum; /* Checksum du nom court */ - char text2 [VSE2SIZE * 2]; /* Caracteres encodes sur 16 bits */ - unsigned char sector_l; /* 0 pour les VFAT */ - unsigned char sector_u; /* 0 pour les VFAT */ - char text3 [VSE3SIZE * 2]; /* Caracteres encodes sur 16 bits */ -} __attribute__ ((packed)) ; - -struct vfat_state { - char name [VBUFSIZE]; - int status; /* is now a bit map of 32 bits */ - int subentries; - unsigned char sum; /* no need to remember the sum for each */ - /* entry, it is the same anyways */ -} __attribute__ ((packed)) ; - -/* Conversion macros */ -#define DOS_YEAR(dir) (((dir)->date[1] >> 1) + 1980) -#define DOS_MONTH(dir) (((((dir)->date[1]&0x1) << 3) + ((dir)->date[0] >> 5))) -#define DOS_DAY(dir) ((dir)->date[0] & 0x1f) -#define DOS_HOUR(dir) ((dir)->time[1] >> 3) -#define DOS_MINUTE(dir) (((((dir)->time[1]&0x7) << 3) + ((dir)->time[0] >> 5))) -#define DOS_SEC(dir) (((dir)->time[0] & 0x1f) * 2) - - -#endif |