1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (C) 2009-2012 Semihalf
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 */
30
31#ifndef _NANDSIM_SWAP_CHIP_H_
32#define _NANDSIM_SWAP_CHIP_H_
33
34struct block_space {
35	SLIST_ENTRY(block_space)	free_link;
36	STAILQ_ENTRY(block_space)	used_link;
37	struct block_state		*blk_state;
38	uint8_t				*blk_ptr;
39};
40
41#define	BLOCK_ALLOCATED	0x1
42#define	BLOCK_SWAPPED	0x2
43#define	BLOCK_DIRTY	0x4
44
45struct block_state {
46	struct block_space	*blk_sp;
47	uint32_t		offset;
48	uint8_t			status;
49};
50
51struct chip_swap {
52	struct block_state		*blk_state;
53	SLIST_HEAD(,block_space)	free_bs;
54	STAILQ_HEAD(,block_space)	used_bs;
55	struct ucred			*swap_cred;
56	struct vnode			*swap_vp;
57	uint32_t			swap_offset;
58	uint32_t			blk_size;
59	uint32_t			nof_blks;
60};
61
62struct chip_swap *nandsim_swap_init(const char *, uint32_t, uint32_t);
63void nandsim_swap_destroy(struct chip_swap *);
64struct block_space *get_bs(struct chip_swap *, uint32_t, uint8_t);
65
66#endif /* _NANDSIM_SWAP_CHIP_H_ */
67