include/linux/atari_rootsec.h

   1 #ifndef _LINUX_ATARI_ROOTSEC_H
   2 #define _LINUX_ATARI_ROOTSEC_H
   3
   4 /*
   5  * linux/include/linux/atari_rootsec.h
   6  * definitions for Atari Rootsector layout
   7  * by Andreas Schwab (schwab@ls5.informatik.uni-dortmund.de)
   8  *
   9  * modified for ICD/Supra partitioning scheme restricted to at most 12
  10  * partitions
  11  * by Guenther Kelleter (guenther@pool.informatik.rwth-aachen.de)
  12  */
  13
  14 struct partition_info
  15 {
  16   u_char flg;                   /* bit 0: active; bit 7: bootable */
  17   char id[3];                   /* "GEM", "BGM", "XGM", or other */
  18   u32 st;                       /* start of partition */
  19   u32 siz;                      /* length of partition */
  20 };
  21
  22 struct rootsector
  23 {
  24   char unused[0x156];                   /* room for boot code */
  25   struct partition_info icdpart[8];     /* info for ICD-partitions 5..12 */
  26   char unused2[0xc];
  27   u32 hd_siz;                           /* size of disk in blocks */
  28   struct partition_info part[4];
  29   u32 bsl_st;                           /* start of bad sector list */
  30   u32 bsl_cnt;                          /* length of bad sector list */
  31   u16 checksum;                         /* checksum for bootable disks */
  32 } __attribute__ ((__packed__));
  33
  34 #endif /* _LINUX_ATARI_ROOTSEC_H */