pdc.h

/*
 * Copyright (C) 2004,2005  Heinz Mauelshagen, Red Hat GmbH.
 *                          All rights reserved.
 *
 * See file LICENSE at the top of this source tree for license information.
 */

#ifndef     _PDC_H_
#define     _PDC_H_

#ifdef      FORMAT_HANDLER
#undef      FORMAT_HANDLER

#include <stdint.h>

#define PDC_CONFIGOFFSETS     63,255,256,16,399,735,675,991,911
#define     PDC_DATAOFFSET 0

/* Ondisk metadata for Promise Fastrack */
struct pdc {
#define PDC_ID_LENGTH   24
      uint8_t promise_id[PDC_ID_LENGTH];  /* 0x00 - 0x17 */
#define PDC_MAGIC        "Promise Technology, Inc."

      uint32_t unknown_0;                 /* 0x18 - 0x1B */
      uint32_t magic_0;             /* 0x1C - 0x1F */
      uint32_t unknown_1;                 /* 0x20 - 0x23 */
      uint32_t magic_1;             /* 0x24 - 0x27 */
      uint16_t unknown_2;                 /* 0x28 - 0x2B */
      uint8_t filler1[470];               /* 0x2C - 0x1FF */
      struct {
            uint32_t flags;               /* 0x200 - 0x203 */
            uint8_t unknown_0;            /* 0x204 */
            uint8_t disk_number;          /* 0x205 */
            uint8_t channel;        /* 0x206 */
            uint8_t device;               /* 0x207 */
            uint32_t magic_0;       /* 0x208 - 0x20B */
            uint32_t unknown_1;           /* 0x20C - 0x20F */
            uint32_t unknown_2;           /* 0x210 - 0x213 */
            uint32_t disk_secs;           /* 0x214 - 0x217 */
            uint32_t unknown_3;           /* 0x218 - 0x21B */
            uint16_t unknown_4;           /* 0x21C - 0x21D */
            uint8_t status;               /* 0x21E */
/* FIXME: bit 0x80 doesn't seem to indicate error as previously assumed. */
// #define  PDC_BROKEN(pdc)         ((pdc)->raid.status &  0x80)
#define     PDC_BROKEN(pdc)         ((pdc)->raid.status &  0x00)
#define     PDC_SET_BROKEN(pdc)     ((pdc)->raid.status |= 0x80)
            uint8_t type;                 /* 0x21F */
#define     PDC_T_RAID0 0x0
#define     PDC_T_RAID1 0x1
#define     PDC_T_SPAN  0x8
            uint8_t total_disks;          /* 0x220 */
            uint8_t raid0_shift;          /* 0x221 */
            uint8_t raid0_disks;          /* 0x222 */
            uint8_t array_number;         /* 0x223 */
            uint32_t total_secs;          /* 0x224 - 0x227 */
            uint16_t cylinders;           /* 0x228 - 0x229 */
            uint8_t heads;                /* 0x22A */
            uint8_t sectors;        /* 0x22B */
            uint32_t magic_1;       /* 0x22C - 0x2EF */
            uint32_t unknown_5;           /* 0x230 - 0x233 */
            struct pdc_disk {
                  uint16_t unknown_0;     /* 0x234 - 0x235 */
                  uint8_t channel;  /* 0x236 */
                  uint8_t device;         /* 0x237 */
                  uint32_t magic_0; /* 0x238 - 0x23B */
                  uint32_t disk_number;   /* 0x23C - 0x23F */
            } disk[8];
      } raid;

      uint32_t filler2[346];              /* 0x294 - */
      uint32_t checksum;
} __attribute__ ((packed));

#define     PDC_MAXDISKS      8

#endif

int register_pdc(struct lib_context *lc);

#endif