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disk.h
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1993-10-19
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/* @(#)disk.h 1.0 08/29/87 (c) 1987 NeXT */
/*
* HISTORY
* 28-Mar-92 Doug Mitchell
* Moved disk_label struct to <bsd/dev/disk_label.h>.
*
* 22-May-91 Gregg Kellogg (gk) at NeXT
* Split out public interface.
*
* 20-Jul-90 Doug Mitchell
* Added DKIOCSFORMAT, DKIOCGFORMAT
*
* 16-Apr-90 Doug Mitchell at NeXT
* Added DKIOCPANELPRT.
*
* 25-Mar-90 John Seamons (jks) at NeXT
* Removed obsolete DKIOCNOTIFY and DKIOCINSERT.
*
* 23-Mar-90 Doug Mitchell
* Added DKIOCEJECT.
*
* 14-Feb-90 Doug Mitchell at NeXT
* Added DKIOCMNOTIFY.
*
* 16-Mar-88 John Seamons (jks) at NeXT
* Cleaned up to support standard disk label definitions.
*
* 24-Feb-88 Mike DeMoney (mike) at NeXT
* Added defines for dl_bootfile and dl_boot0_blkno.
* Reduced NBAD to allow for these entries in disktab.
*
* 29-Aug-87 John Seamons (jks) at NeXT
* Created.
*
*/
#ifndef _BSD_DEV_DISK_
#define _BSD_DEV_DISK_
#import <mach/machine/vm_types.h>
#import <mach/machine/boolean.h>
#import <sys/types.h>
#import <sys/ioctl.h>
#import <sys/time.h>
#import <bsd/dev/disk_label.h>
#define DR_CMDSIZE 32
#define DR_ERRSIZE 32
struct disk_req {
int dr_bcount; /* byte count for data transfers */
caddr_t dr_addr; /* memory addr for data transfers */
struct timeval dr_exec_time; /* execution time of operation */
/*
* interpretation of cmdblk and errblk is driver specific.
*/
char dr_cmdblk[DR_CMDSIZE];
char dr_errblk[DR_ERRSIZE];
};
struct sdc_wire {
vm_offset_t start, end;
boolean_t new_pageable;
};
#define BAD_BLK_OFF 4 /* offset of bad blk tbl from label */
#define NBAD_BLK (12 * 1024 / sizeof (int))
struct bad_block { /* bad block table, sized to be 12KB */
int bad_blk[NBAD_BLK];
};
/*
* sector bitmap states (2 bits per sector)
*/
#define SB_UNTESTED 0 /* must be zero */
#define SB_BAD 1
#define SB_WRITTEN 2
#define SB_ERASED 3
struct drive_info { /* info about drive hardware */
char di_name[MAXDNMLEN]; /* drive type name */
int di_label_blkno[NLABELS];/* label loc'ns in DEVICE SECTORS */
int di_devblklen; /* device sector size */
int di_maxbcount; /* max bytes per transfer request */
};
#define DS_STATSIZE 32
struct disk_stats {
int s_ecccnt; /* avg ECC corrections per sector */
int s_maxecc; /* max ECC corrections observed */
/*
* interpretation of s_stats is driver specific
*/
char s_stats[DS_STATSIZE];
};
#define DKIOCGLABEL _IO('d', 0) // read label
#define DKIOCSLABEL _IO('d', 1) // write label
#define DKIOCGBITMAP _IO('d', 2) // read bitmap
#define DKIOCSBITMAP _IO('d', 3) // write bitmap
#define DKIOCREQ _IOWR('d', 4, struct disk_req) // cmd request
#define DKIOCINFO _IOR('d', 5, struct drive_info) // get drive info
#define DKIOCZSTATS _IO('d',7) // zero statistics
#define DKIOCGSTATS _IO('d', 8) // get statistics
#define DKIOCRESET _IO('d', 9) // reset disk
#define DKIOCGFLAGS _IOR('d', 11, int) // get driver flags
#define DKIOCSFLAGS _IOW('d', 12, int) // set driver flags
#define DKIOCSDCWIRE _IOW('d', 14, struct sdc_wire) // sdc wire memory
#define DKIOCSDCLOCK _IO('d', 15) // sdc lock
#define DKIOCSDCUNLOCK _IO('d', 16) // sdc unlock
#define DKIOCGFREEVOL _IOR('d', 17, int) // get free volume #
#define DKIOCGBBT _IO('d', 18) // read bad blk tbl
#define DKIOCSBBT _IO('d', 19) // write bad blk tbl
#define DKIOCMNOTIFY _IOW('d', 20, int) // message on insert
#define DKIOCEJECT _IO('d', 21) // eject disk
#define DKIOCPANELPRT _IOW('d', 22, int) // register Panel
// Request port
#define DKIOCSFORMAT _IOW('d', 23, int) // set 'Formatted' flag
#define DKIOCGFORMAT _IOR('d', 23, int) // get 'Formatted' flag
#define DKIOCBLKSIZE _IOR('d', 24, int) // device sector size
#define DKIOCNUMBLKS _IOR('d', 25, int) // number of sectors
#define DKIOCCHECKINSERT _IO('d',26) // manually poll removable
// media drive
#endif _BSD_DEV_DISK_