ps2_hdd.h

/*
 * ps2_hdd.h
 * $Id: ps2_hdd.h,v 1.6 2006/06/18 13:12:57 bobi Exp $
 *
 * borrowed from ps2fdisk
 */

#if !defined(_PS2_HDD_H)
#define _PS2_HDD_H

#include "config.h"

C_START

/* Various PS2 partition constants */
#define PS2_PARTITION_MAGIC "APA" /* "APA\0" */
#define PS2_PART_IDMAX      32
#define PS2_PART_NAMEMAX    128
#define PS2_PART_MAXSUB     64     /* Maximum # of sub-partitions */
#define PS2_PART_FLAG_SUB   0x0001 /* Is partition a sub-partition? */
#define PS2_MBR_VERSION     2      /* Current MBR version */
#define PS2_MBR_MAGIC       "Sony Computer Entertainment Inc."

/* Partition types */
#define PS2_MBR_PARTITION   0x0001
#define PS2_SWAP_PARTITION  0x0082
#define PS2_LINUX_PARTITION 0x0083
#define PS2_GAME_PARTITION  0x0100
#define PS2_HDL_PARTITION   0x1337

/* Date/time descriptor used in on-disk partition header */
typedef struct ps2fs_datetime_type
{
    u_int8_t unused;
    u_int8_t sec;
    u_int8_t min;
    u_int8_t hour;
    u_int8_t day;
    u_int8_t month;
    u_int16_t year;
} ps2fs_datetime_t;

/* On-disk partition header for a partition */
typedef struct ps2_partition_header_type
{
    u_int32_t checksum; /* Sum of all 256 words, assuming checksum==0 */
    u_int8_t magic[4];  /* PS2_PARTITION_MAGIC */
    u_int32_t next;     /* Sector address of next partition */
    u_int32_t prev;     /* Sector address of previous partition */
    char id[PS2_PART_IDMAX];
    char unknown1[16];
    u_int32_t start;  /* Sector address of this partition */
    u_int32_t length; /* Sector count */
    u_int16_t type;
    u_int16_t flags; /* PS2_PART_FLAG_* */
    u_int32_t nsub;  /* No. of sub-partitions (stored in main partition) */
    ps2fs_datetime_t created;
    u_int32_t main;   /* For sub-partitions, main partition sector address */
    u_int32_t number; /* For sub-partitions, sub-partition number */
    u_int32_t modver;
    u_int32_t pading1[7];
    char name[PS2_PART_NAMEMAX];
    struct
    {
        char magic[32]; /* Copyright message in MBR */
        u_int32_t version;
        u_int32_t nsector;
        ps2fs_datetime_t created; /* Same as for the partition, it seems*/
        u_int32_t data_start;     /* Some sort of MBR data; position in sectors*/
        u_int32_t data_len;       /* Length also in sectors */

        char unknown2[72];

        /* DMS-/ToxicOS-specific */
        char dms_boot_magic[32];
        u_int32_t boot_elf_installed;
        u_int32_t boot_elf_lba;
        u_int32_t boot_elf_byte_size;
        u_int32_t boot_elf_checksum;
        u_int32_t boot_elf_virtual_addr;
        u_int32_t boot_elf_start_addr;
        char unknown3[72 - 12];
        char toxic_magic[8];
        u_int32_t toxic_flags;
    } mbr;
    struct
    {                     /* Sub-partition data */
        u_int32_t start;  /* Sector address */
        u_int32_t length; /* Sector count */
    } subs[PS2_PART_MAXSUB];
} ps2_partition_header_t;

C_END

#endif /* _PS2_HDD_H defined? */