diff options
Diffstat (limited to 'sys/sys/dkbad.h')
| -rw-r--r-- | sys/sys/dkbad.h | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/sys/sys/dkbad.h b/sys/sys/dkbad.h index 5daecded032f..be5af911b12c 100644 --- a/sys/sys/dkbad.h +++ b/sys/sys/dkbad.h @@ -31,11 +31,11 @@ * SUCH DAMAGE. * * @(#)dkbad.h 8.1 (Berkeley) 6/2/93 - * $Id: dkbad.h,v 1.2 1994/08/02 07:52:50 davidg Exp $ + * $Id: dkbad.h,v 1.3 1994/08/21 04:41:40 paul Exp $ */ #ifndef _SYS_DKBAD_H_ -#define _SYS_DKBAD_H_ +#define _SYS_DKBAD_H_ /* * Definitions needed to perform bad sector revectoring ala DEC STD 144. @@ -56,6 +56,11 @@ * making sure that it does not overlap the bad sector information or any * replacement sectors. */ + +#define DKBAD_MAGIC 0x4321 /* normal value for bt_flag */ +#define DKBAD_MAXBAD 126 /* maximum bad sectors supported */ +#define DKBAD_NOCYL 0xffff /* cylinder to mark end of disk table */ + struct dkbad { long bt_csn; /* cartridge serial number */ u_short bt_mbz; /* unused; should be 0 */ @@ -63,7 +68,7 @@ struct dkbad { struct bt_bad { u_short bt_cyl; /* cylinder number of bad sector */ u_short bt_trksec; /* track and sector number */ - } bt_bad[126]; + } bt_bad[DKBAD_MAXBAD]; }; #define ECC 0 @@ -71,4 +76,24 @@ struct dkbad { #define BSE 2 #define CONT 3 +#ifdef KERNEL +#include <sys/conf.h> + +#define DKBAD_NOSECT (-1) /* sector to mark end of core table */ + +struct dkbad_intern { + daddr_t bi_maxspare; /* last spare sector */ + u_int bi_nbad; /* actual dimension of bi_badsect[] */ + long bi_bad[DKBAD_MAXBAD + 1]; /* actually usually less */ +}; + +struct disklabel; + +struct dkbad_intern *internbad144 __P((struct dkbad *btp, + struct disklabel *lp)); +char *readbad144 __P((dev_t dev, d_strategy_t *strat, + struct disklabel *lp, struct dkbad *btp)); +daddr_t transbad144 __P((struct dkbad_intern *bip, daddr_t blkno)); #endif + +#endif /* !_SYS_DKBAD_H_ */ |