/*      $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_ */