/*      $NetBSD: vtoc.h,v 1.3 2008/04/28 20:23:18 martin Exp $  */

/*-
* Copyright (c) 2004 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by UCHIYAMA Yasushi.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef _EWS4800MIPS_VTOC_H_
#define _EWS4800MIPS_VTOC_H_

/* Volume Table Of Contents */

#define VTOC_MAXPARTITIONS      16
#define VTOC_SECTOR             1       /* sector */
#define VTOC_MINSIZE            16      /* sector */

#define VTOC_MAGIC              0x600ddeee
#define VTOC_VERSION            1

#define VTOC_TAG_NONAME         0x00
#define VTOC_TAG_BOOT           0x01
#define VTOC_TAG_ROOT           0x02
#define VTOC_TAG_SWAP           0x03
#define VTOC_TAG_USR            0x04
#define VTOC_TAG_RAWDISK        0x05
#define VTOC_TAG_STAND          0x06    /* bfs */
#define VTOC_TAG_VAR            0x07
#define VTOC_TAG_HOME           0x08
#define __VTOC_TAG_BSDFFS       0xff    /* ews4800mips port original define */

#define VTOC_FLAG_UNMOUNT       0x01
#define VTOC_FLAG_RDONLY        0x10

struct ux_partition {
       uint16_t tag;                   /* 0 */
       uint16_t flags;                 /* 2 */
       uint32_t start_sector;          /* 4 */
       int32_t nsectors;               /* 8 */
} __attribute__((__packed__));

/* Sector image */
struct vtoc_sector {
       uint32_t bootinfo[3];           /*  0 */
       uint32_t magic;                 /* 12 */
       uint32_t version;               /* 16 */
       int8_t volume[8];               /* 20 */
       uint16_t sector_size_byte;      /* 28 */
       uint16_t npartitions;           /* 30 */
       uint32_t reserved[10];          /* 32 */
       struct ux_partition partition[VTOC_MAXPARTITIONS];      /* 72 */
       uint32_t timestamp[VTOC_MAXPARTITIONS]; /* 264 */
       int32_t padding[46];            /* 328 */
} __attribute__((__packed__));          /* 512 byte */

struct pdinfo_sector;

#if defined(_KERNEL) || defined(_STANDALONE)
bool vtoc_sector(void *, struct vtoc_sector *, int);
bool vtoc_valid(const struct vtoc_sector *);
bool vtoc_sanity(const struct vtoc_sector *);
const struct ux_partition *vtoc_find_bfs(const struct vtoc_sector *);
bool vtoc_write(struct vtoc_sector *, struct pdinfo_sector *);
#endif

#endif /* _EWS4800MIPS_VTOC_H_ */