/************************************************************************* * * * Copyright (c) 2007-2020 Howard M. Harte. * * https://github.com/hharte * * * * Permission is hereby granted, free of charge, to any person obtaining * * a copy of this software and associated documentation files (the * * "Software"), to deal in the Software without restriction, including * * without limitation the rights to use, copy, modify, merge, publish, * * distribute, sublicense, and/or sell copies of the Software, and to * * permit persons to whom the Software is furnished to do so, subject to * * the following conditions: * * * * The above copyright notice and this permission notice shall be * * included in all copies or substantial portions of the Software. * * * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * * NONINFRINGEMENT. IN NO EVENT SHALL HOWARD M. HARTE BE LIABLE FOR ANY * * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * * * Except as contained in this notice, the name of Howard M. Harte shall * * not be used in advertising or otherwise to promote the sale, use or * * other dealings in this Software without prior written authorization * * Howard M. Harte. * * * * SIMH Interface based on altairz80_hdsk.c, by Peter Schorn. * * * * Module Description: * * ImageDisk Disk Image File access module for SIMH, definitions. * * See: http://www.classiccmp.org/dunfield/img/index.htm * * for details on the ImageDisk format and other utilities. * * * *************************************************************************/ #ifndef SIM_IMD_H_ #define SIM_IMD_H_ 0 #include "sim_defs.h" typedef struct { uint8 mode; uint8 cyl; uint8 head; uint8 nsects; uint8 sectsize; } IMD_HEADER; #define IMD_FLAG_SECT_HEAD_MAP (1 << 6) #define IMD_FLAG_SECT_CYL_MAP (1 << 7) #define SECT_RECORD_UNAVAILABLE 0 /* Data could not be read from the original media */ #define SECT_RECORD_NORM 1 /* Normal Data */ #define SECT_RECORD_NORM_COMP 2 /* Compressed Normal Data */ #define SECT_RECORD_NORM_DAM 3 /* Normal Data with deleted address mark */ #define SECT_RECORD_NORM_DAM_COMP 4 /* Compressed Normal Data with deleted address mark */ #define SECT_RECORD_NORM_ERR 5 /* Normal Data */ #define SECT_RECORD_NORM_COMP_ERR 6 /* Compressed Normal Data */ #define SECT_RECORD_NORM_DAM_ERR 7 /* Normal Data with deleted address mark */ #define SECT_RECORD_NORM_DAM_COMP_ERR 8 /* Compressed Normal Data with deleted address mark */ #define MAX_CYL 80 #define MAX_HEAD 2 #define MAX_SPT 26 #define FD_FLAG_WRITELOCK 1 #define IMD_DISK_IO_ERROR_GENERAL (1 << 0) /* General data error. */ #define IMD_DISK_IO_ERROR_CRC (1 << 1) /* Data read/written, but got a CRC error. */ #define IMD_DISK_IO_DELETED_ADDR_MARK (1 << 2) /* Sector had a deleted address mark */ #define IMD_DISK_IO_COMPRESSED (1 << 3) /* Sector is compressed in the IMD file (Read Only) */ #define IMD_DISK_IO_ERROR_WPROT (1 << 4) /* Disk is write protected */ #define IMD_MODE_500K_FM 0 #define IMD_MODE_300K_FM 1 #define IMD_MODE_250K_FM 2 #define IMD_MODE_500K_MFM 3 #define IMD_MODE_300K_MFM 4 #define IMD_MODE_250K_MFM 5 #define IMD_MAX_SECTSIZE 6 #define IMD_MODE_FM(x) (x <= IMD_MODE_250K_FM) #define IMD_MODE_MFM(x) (x >= IMD_MODE_500K_MFM) #define IMAGE_TYPE_DSK 1 /* Flat binary "DSK" image file. */ #define IMAGE_TYPE_IMD 2 /* ImageDisk "IMD" image file. */ #define IMAGE_TYPE_CPT 3 /* CP/M Transfer "CPT" image file. */ typedef struct { uint8 mode; uint8 nsects; uint32 sectsize; uint32 sectorOffsetMap[MAX_SPT]; uint8 start_sector; uint8 logicalHead[MAX_SPT]; uint8 logicalCyl[MAX_SPT]; } TRACK_INFO; typedef struct { FILE *file; uint32 ntracks; uint8 nsides; uint8 flags; DEVICE *device; uint32 debugmask; uint32 verbosedebugmask; TRACK_INFO track[MAX_CYL][MAX_HEAD]; } DISK_INFO; extern DISK_INFO *diskOpen(FILE *fileref, uint32 isVerbose); extern DISK_INFO *diskOpenEx(FILE *fileref, uint32 isVerbose, DEVICE *device, uint32 debugmask, uint32 verbosedebugmask); extern t_stat diskClose(DISK_INFO **myDisk); extern t_stat diskCreate(FILE *fileref, const char *ctlr_comment); extern uint32 imdGetSides(DISK_INFO *myDisk); extern uint32 imdIsWriteLocked(DISK_INFO *myDisk); extern t_stat sectSeek(DISK_INFO *myDisk, uint32 Cyl, uint32 Head); extern t_stat sectRead(DISK_INFO *myDisk, uint32 Cyl, uint32 Head, uint32 Sector, uint8 *buf, uint32 buflen, uint32 *flags, uint32 *readlen); extern t_stat sectWrite(DISK_INFO *myDisk, uint32 Cyl, uint32 Head, uint32 Sector, uint8 *buf, uint32 buflen, uint32 *flags, uint32 *writelen); extern t_stat trackWrite(DISK_INFO *myDisk, uint32 Cyl, uint32 Head, uint32 numSectors, uint32 sectorLen, uint8 *sectorMap, uint8 mode, uint8 fillbyte, uint32 *flags); extern t_stat assignDiskType(UNIT *uptr); #endif