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#ifndef DISKIMAGE_H |
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#define DISKIMAGE_H |
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|
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/* |
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* Copyright (C) 2003-2007 Anders Gavare. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* |
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* $Id: diskimage.h,v 1.36 2007/03/24 06:39:29 debug Exp $ |
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* |
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* Generic disk image functions. (See diskimage.c for more info.) |
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*/ |
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|
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#include <stdio.h> |
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#include <sys/types.h> |
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|
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#include "misc.h" |
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|
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/* Diskimage types: */ |
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#define DISKIMAGE_SCSI 1 |
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#define DISKIMAGE_IDE 2 |
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#define DISKIMAGE_FLOPPY 3 |
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|
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#define DISKIMAGE_TYPES { "(NONE)", "SCSI", "IDE", "FLOPPY" } |
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|
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|
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/* 512 bytes per overlay block. Don't change this. */ |
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#define OVERLAY_BLOCK_SIZE 512 |
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|
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struct diskimage_overlay { |
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char *overlay_basename; |
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FILE *f_data; |
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FILE *f_bitmap; |
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}; |
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|
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struct diskimage { |
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struct diskimage *next; |
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int type; /* DISKIMAGE_SCSI, etc */ |
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int id; /* SCSI id */ |
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|
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/* Filename in host's file system: */ |
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char *fname; |
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FILE *f; |
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|
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/* Overlays: */ |
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int nr_of_overlays; |
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struct diskimage_overlay *overlays; |
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|
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int chs_override; |
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int cylinders; |
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int heads; |
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int sectors_per_track; |
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|
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off_t total_size; |
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int64_t override_base_offset; |
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int logical_block_size; |
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|
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int writable; |
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int is_a_cdrom; |
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int is_boot_device; |
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|
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int is_a_tape; |
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uint64_t tape_offset; |
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int tape_filenr; |
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int filemark; |
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|
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int rpms; |
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int ncyls; |
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}; |
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|
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|
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/* Transfer command, sent from a SCSI controller device to a disk: */ |
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struct scsi_transfer { |
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struct scsi_transfer *next_free; |
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|
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/* These should be set by the SCSI controller before the call: */ |
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unsigned char *msg_out; |
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size_t msg_out_len; |
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unsigned char *cmd; |
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size_t cmd_len; |
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|
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/* data_out_len is set by the SCSI disk, if it needs data_out, |
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which is then filled in during a second pass in the controller. */ |
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unsigned char *data_out; |
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size_t data_out_len; |
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size_t data_out_offset; |
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|
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/* These should be set by the SCSI (disk) device before returning: */ |
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unsigned char *data_in; |
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size_t data_in_len; |
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unsigned char *msg_in; |
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size_t msg_in_len; |
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unsigned char *status; |
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size_t status_len; |
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}; |
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|
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|
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struct machine; |
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|
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|
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/* diskimage_scsicmd.c: */ |
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struct scsi_transfer *scsi_transfer_alloc(void); |
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void scsi_transfer_free(struct scsi_transfer *); |
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void scsi_transfer_allocbuf(size_t *lenp, unsigned char **pp, |
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size_t want_len, int clearflag); |
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int diskimage_scsicommand(struct cpu *cpu, int id, int type, |
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struct scsi_transfer *); |
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|
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|
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/* diskimage.c: */ |
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int64_t diskimage_getsize(struct machine *machine, int id, int type); |
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int64_t diskimage_get_baseoffset(struct machine *machine, int id, int type); |
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void diskimage_getchs(struct machine *machine, int id, int type, |
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int *c, int *h, int *s); |
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int diskimage__internal_access(struct diskimage *d, int writeflag, |
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off_t offset, unsigned char *buf, size_t len); |
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int diskimage_access(struct machine *machine, int id, int type, int writeflag, |
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off_t offset, unsigned char *buf, size_t len); |
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void diskimage_add_overlay(struct diskimage *d, char *overlay_basename); |
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void diskimage_recalc_size(struct diskimage *d); |
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int diskimage_exist(struct machine *machine, int id, int type); |
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int diskimage_bootdev(struct machine *machine, int *typep); |
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int diskimage_add(struct machine *machine, char *fname); |
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int diskimage_getname(struct machine *machine, int id, int type, |
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char *buf, size_t bufsize); |
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int diskimage_is_a_cdrom(struct machine *machine, int id, int type); |
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int diskimage_is_a_tape(struct machine *machine, int id, int type); |
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void diskimage_dump_info(struct machine *machine); |
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|
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|
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/* |
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* SCSI commands: |
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*/ |
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#define SCSICMD_TEST_UNIT_READY 0x00 /* Mandatory */ |
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#define SCSICMD_REQUEST_SENSE 0x03 /* Mandatory */ |
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#define SCSICMD_INQUIRY 0x12 /* Mandatory */ |
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|
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#define SCSICMD_READ 0x08 |
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#define SCSICMD_READ_10 0x28 |
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#define SCSICMD_WRITE 0x0a |
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#define SCSICMD_WRITE_10 0x2a |
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#define SCSICMD_MODE_SELECT 0x15 |
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#define SCSICMD_MODE_SENSE 0x1a |
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#define SCSICMD_START_STOP_UNIT 0x1b |
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#define SCSICMD_PREVENT_ALLOW_REMOVE 0x1e |
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#define SCSICMD_MODE_SENSE10 0x5a |
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|
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#define SCSICMD_SYNCHRONIZE_CACHE 0x35 |
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|
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/* SCSI block device commands: */ |
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#define SCSIBLOCKCMD_READ_CAPACITY 0x25 |
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|
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/* SCSI CD-ROM commands: */ |
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#define SCSICDROM_READ_SUBCHANNEL 0x42 |
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#define SCSICDROM_READ_TOC 0x43 |
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#define SCSICDROM_READ_DISCINFO 0x51 |
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#define SCSICDROM_READ_TRACKINFO 0x52 |
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|
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/* SCSI tape commands: */ |
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#define SCSICMD_REWIND 0x01 |
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#define SCSICMD_READ_BLOCK_LIMITS 0x05 |
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#define SCSICMD_SPACE 0x11 |
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|
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|
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#endif /* DISKIMAGE_H */ |
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