release/src/include/trxhdr.h

   1 /*
   2  * TRX image file header format.
   3  *
   4  * Copyright 2005, Broadcom Corporation
   5  * All Rights Reserved.
   6  *
   7  * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
   8  * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
   9  * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
  10  * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
  11  *
  12  * $Id$
  13  */
  14
  15 #include <typedefs.h>
  16
  17 #define TRX_MAGIC       0x30524448      /* "HDR0" */
  18 #define TRX_VERSION     1               /* Version 1 */
  19 #define TRX_MAX_LEN     0x7A0000        /* Max length */
  20 #define TRX_NO_HEADER   1               /* Do not write TRX header */
  21 #define TRX_GZ_FILES    0x2     /* Contains up to TRX_MAX_OFFSET individual gzip files */
  22 #define TRX_MAX_OFFSET  3               /* Max number of individual files */
  23
  24 struct trx_header {
  25         uint32 magic;           /* "HDR0" */
  26         uint32 len;             /* Length of file including header */
  27         uint32 crc32;           /* 32-bit CRC from flag_version to end of file */
  28         uint32 flag_version;    /* 0:15 flags, 16:31 version */
  29         uint32 offsets[TRX_MAX_OFFSET]; /* Offsets of partitions from start of header */
  30 };
  31
  32 /* Compatibility */
  33 typedef struct trx_header TRXHDR, *PTRXHDR;