2fe8fb192f
There is important information about booting non-ack images in docs/UPDATING. ack/aout-format images can't be built any more, and booting clang/ELF-format ones is a little different. Updating to the new boot monitor is recommended. Changes in this commit: . drop boot monitor -> allowing dropping ack support . facility to copy ELF boot files to /boot so that old boot monitor can still boot fairly easily, see UPDATING . no more ack-format libraries -> single-case libraries . some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases . drop several ack toolchain commands, but not all support commands (e.g. aal is gone but acksize is not yet). . a few libc files moved to netbsd libc dir . new /bin/date as minix date used code in libc/ . test compile fix . harmonize includes . /usr/lib is no longer special: without ack, /usr/lib plays no kind of special bootstrapping role any more and bootstrapping is done exclusively through packages, so releases depend even less on the state of the machine making them now. . rename nbsd_lib* to lib* . reduce mtree
116 lines
4.1 KiB
C
116 lines
4.1 KiB
C
/* $NetBSD: ebh_media.h,v 1.1 2011/11/24 15:51:32 ahoka Exp $ */
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/*-
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* Copyright (c) 2010 Department of Software Engineering,
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* University of Szeged, Hungary
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* Copyright (C) 2009 Ferenc Havasi <havasi@inf.u-szeged.hu>
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* Copyright (C) 2009 Zoltan Sogor <weth@inf.u-szeged.hu>
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* Copyright (C) 2009 David Tengeri <dtengeri@inf.u-szeged.hu>
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* Copyright (C) 2010 Adam Hoka <ahoka@NetBSD.org>
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by the Department of Software Engineering, University of Szeged, Hungary
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef EBH_MEDIA_H_
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#define EBH_MEDIA_H_
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#ifndef _LE_TYPES
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#define _LE_TYPES
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typedef uint16_t le16;
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typedef uint32_t le32;
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typedef uint64_t le64;
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#endif
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/*****************************************************************************/
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/* EBH specific structures */
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/*****************************************************************************/
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#define CHFS_MAGIC_BITMASK 0x53454452
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#define CHFS_LID_NOT_DIRTY_BIT 0x80000000
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#define CHFS_LID_DIRTY_BIT_MASK 0x7fffffff
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/* sizeof(crc) + sizeof(lid) */
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#define CHFS_INVALIDATE_SIZE 8
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/* Size of magic + crc_ec + erase_cnt */
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#define CHFS_EB_EC_HDR_SIZE sizeof(struct chfs_eb_ec_hdr)
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/* Size of NOR eraseblock header */
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#define CHFS_EB_HDR_NOR_SIZE sizeof(struct chfs_nor_eb_hdr)
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/* Size of NAND eraseblock header */
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#define CHFS_EB_HDR_NAND_SIZE sizeof(struct chfs_nand_eb_hdr)
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/*
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* chfs_eb_ec_hdr - erase counter header of eraseblock
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* @magic: filesystem magic
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* @crc_ec: CRC32 sum of erase counter
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* @erase_cnt: erase counter
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*
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* This structure holds the erasablock description information.
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* This will be written to the beginning of the eraseblock.
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*
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*/
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struct chfs_eb_ec_hdr {
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le32 magic;
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le32 crc_ec;
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le32 erase_cnt;
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} __packed;
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/**
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* struct chfs_nor_eb_hdr - eraseblock header on NOR flash
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* @crc: CRC32 sum
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* @lid: logical identifier
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*
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* @lid contains the logical block reference but only the first 31 bit (0-30) is
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* used. The 32th bit is for marking a lid dirty (marked for recovery purposes).
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* If a new eraseblock is succesfully assigned with the same lid then the lid of
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* the old one is zeroed. If power failure happened during this operation then
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* the recovery detects that there is two eraseblock with the same lid, but one
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* of them is marked (the old one).
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*
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* Invalidated eraseblock header means that the @crc and @lid is set to 0.
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*/
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struct chfs_nor_eb_hdr {
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le32 crc;
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le32 lid;
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} __packed;
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/**
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* struct chfs_nand_eb_hdr - eraseblock header on NAND flash
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* @crc: CRC32 sum
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* @lid: logical identifier
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* @serial: layout of the lid
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*
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* @serial is an unique number. Every eraseblock header on NAND flash has its
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* own serial. If there are two eraseblock on the flash referencing to the same
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* logical eraseblock, the one with bigger serial is the newer.
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*/
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struct chfs_nand_eb_hdr {
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le32 crc;
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le32 lid;
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le64 serial;
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} __packed;
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#endif /* EBH_MEDIA_H_ */
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