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The NAND Flash environment consists of several distinct components: - NAND framework (drivers harness for NAND controllers and NAND chips) - NAND simulator (NANDsim) - NAND file system (NAND FS) - Companion tools and utilities - Documentation (manual pages) This work is still experimental. Please use with caution. Obtained from: Semihalf Supported by: FreeBSD Foundation, Juniper Networks
65 lines
2.2 KiB
C
65 lines
2.2 KiB
C
/*-
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* Copyright (C) 2009-2012 Semihalf
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* All rights reserved.
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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 AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, 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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* $FreeBSD$
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*/
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#ifndef _NANDSIM_SWAP_CHIP_H_
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#define _NANDSIM_SWAP_CHIP_H_
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struct block_space {
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SLIST_ENTRY(block_space) free_link;
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STAILQ_ENTRY(block_space) used_link;
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struct block_state *blk_state;
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uint8_t *blk_ptr;
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};
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#define BLOCK_ALLOCATED 0x1
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#define BLOCK_SWAPPED 0x2
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#define BLOCK_DIRTY 0x4
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struct block_state {
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struct block_space *blk_sp;
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uint32_t offset;
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uint8_t status;
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};
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struct chip_swap {
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struct block_state *blk_state;
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SLIST_HEAD(,block_space) free_bs;
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STAILQ_HEAD(,block_space) used_bs;
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struct ucred *swap_cred;
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struct vnode *swap_vp;
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uint32_t swap_offset;
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uint32_t blk_size;
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uint32_t nof_blks;
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};
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struct chip_swap *nandsim_swap_init(const char *, uint32_t, uint32_t);
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void nandsim_swap_destroy(struct chip_swap *);
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struct block_space *get_bs(struct chip_swap *, uint32_t, uint8_t);
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#endif /* _NANDSIM_SWAP_CHIP_H_ */
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