slicer.h revision 318159 
1/*-
2 * Copyright (c) 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: stable/10/sys/sys/slicer.h 318159 2017-05-10 21:42:16Z marius $
27 */
28
29#ifndef _FLASH_SLICER_H_
30#define	_FLASH_SLICER_H_
31
32#include <sys/types.h>
33
34#define	FLASH_SLICES_MAX_NUM		8
35#define	FLASH_SLICES_MAX_NAME_LEN	(32 + 1)
36
37#define	FLASH_SLICES_FLAG_NONE		0
38#define	FLASH_SLICES_FLAG_RO		1	/* Read only */
39
40#define	FLASH_SLICES_FMT		"%ss.%s"
41
42struct flash_slice {
43	off_t		base;
44	off_t		size;
45	const char	*label;
46	unsigned int	flags;
47};
48
49#ifdef _KERNEL
50
51typedef int (*flash_slicer_t)(device_t dev, const char *provider,
52    struct flash_slice *slices, int *slices_num);
53
54#define	FLASH_SLICES_TYPE_NAND		0
55#define	FLASH_SLICES_TYPE_CFI		1
56#define	FLASH_SLICES_TYPE_SPI		2
57#define	FLASH_SLICES_TYPE_MMC		3
58
59/* Use NULL for deregistering a slicer */
60void flash_register_slicer(flash_slicer_t slicer, u_int type, bool force);
61
62#endif /* _KERNEL */
63
64#endif /* _FLASH_SLICER_H_ */
65