From 0748a120fbf2786c45f23234a07406ac5a9d2fd2 Mon Sep 17 00:00:00 2001 From: Juergen Beisert Date: Thu, 24 Nov 2011 13:43:45 +0100 Subject: ATA/DISK: Share important constants and structures Signed-off-by: Juergen Beisert Signed-off-by: Sascha Hauer --- include/disks.h | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 include/disks.h diff --git a/include/disks.h b/include/disks.h new file mode 100644 index 0000000000..ec136d4ee4 --- /dev/null +++ b/include/disks.h @@ -0,0 +1,39 @@ +/* + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef DISKS_H +#define DISKS_H + +struct block_device; + +/** Size of one sector in bytes */ +#define SECTOR_SIZE 512 + +/** Size of one sector in bit shift */ +#define SECTOR_SHIFT 9 + +/** + * Description of one partition table entry (D*S type) + */ +struct partition_entry { + uint8_t boot_indicator; /*! Maybe marked as an active partition */ + uint8_t chs_begin[3]; /*! Start of the partition in cylinders, heads and sectors */ + uint8_t type; /*! Filesystem type */ + uint8_t chs_end[3]; /*! End of the partition in cylinders, heads and sectors */ + uint32_t partition_start; /*! Start of the partition in LBA notation */ + uint32_t partition_size; /*! Start of the partition in LBA notation */ +} __attribute__ ((packed)); + +#endif /* DISKS_H */ -- cgit v1.2.3