aboutsummaryrefslogtreecommitdiff
path: root/libflash/blocklevel.h
blob: 2e8480d458aeb4ed054eac0e1ca251f2a11029e4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
/* Copyright 2013-2015 IBM Corp.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * 	http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
 * implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#ifndef __LIBFLASH_BLOCKLEVEL_H
#define __LIBFLASH_BLOCKLEVEL_H

#include <stdint.h>

/*
 * libffs may be used with different backends, all should provide these for
 * libflash to get the information it needs
 */
struct blocklevel_device {
	void *priv;
	int (*read)(struct blocklevel_device *bl, uint32_t pos, void *buf, uint32_t len);
	int (*write)(struct blocklevel_device *bl, uint32_t pos, const void *buf, uint32_t len);
	int (*erase)(struct blocklevel_device *bl, uint32_t pos, uint32_t len);
	int (*get_info)(struct blocklevel_device *bl, const char **name, uint32_t *total_size,
			uint32_t *erase_granule);
};

int blocklevel_read(struct blocklevel_device *bl, uint32_t pos, void *buf, uint32_t len);
int blocklevel_write(struct blocklevel_device *bl, uint32_t pos, const void *buf, uint32_t len);
int blocklevel_erase(struct blocklevel_device *bl, uint32_t pos, uint32_t len);
int blocklevel_get_info(struct blocklevel_device *bl, const char **name, uint32_t *total_size,
		uint32_t *erase_granule);

#endif /* __LIBFLASH_BLOCKLEVEL_H */