1/*-
2 * Copyright (C) 2009-2012 Semihalf
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28
29#ifndef _NANDSIM_SWAP_CHIP_H_
30#define _NANDSIM_SWAP_CHIP_H_
31
32struct block_space {
33	SLIST_ENTRY(block_space)	free_link;
34	STAILQ_ENTRY(block_space)	used_link;
35	struct block_state		*blk_state;
36	uint8_t				*blk_ptr;
37};
38
39#define	BLOCK_ALLOCATED	0x1
40#define	BLOCK_SWAPPED	0x2
41#define	BLOCK_DIRTY	0x4
42
43struct block_state {
44	struct block_space	*blk_sp;
45	uint32_t		offset;
46	uint8_t			status;
47};
48
49struct chip_swap {
50	struct block_state		*blk_state;
51	SLIST_HEAD(,block_space)	free_bs;
52	STAILQ_HEAD(,block_space)	used_bs;
53	struct ucred			*swap_cred;
54	struct vnode			*swap_vp;
55	uint32_t			swap_offset;
56	uint32_t			blk_size;
57	uint32_t			nof_blks;
58};
59
60struct chip_swap *nandsim_swap_init(const char *, uint32_t, uint32_t);
61void nandsim_swap_destroy(struct chip_swap *);
62struct block_space *get_bs(struct chip_swap *, uint32_t, uint8_t);
63
64#endif /* _NANDSIM_SWAP_CHIP_H_ */
65