fs/partitions/atari.h

   1 /*
   2  *  fs/partitions/atari.h
   3  *  Moved by Russell King from:
   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   u8 flg;                       /* bit 0: active; bit 7: bootable */
  17   char id[3];                   /* "GEM", "BGM", "XGM", or other */
  18   __be32 st;                    /* start of partition */
  19   __be32 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 int atari_partition(struct parsed_partitions *state, struct block_device *bdev);