1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3 * Copyright 2014 Broadcom Corporation.
4 */
5
6 #include <part.h>
7 #include <sparse_format.h>
8
9 #define ROUNDUP(x, y) (((x) + ((y) - 1)) & ~((y) - 1))
10
11 struct sparse_storage {
12 lbaint_t blksz;
13 lbaint_t start;
14 lbaint_t size;
15 void *priv;
16
17 lbaint_t (*write)(struct sparse_storage *info,
18 lbaint_t blk,
19 lbaint_t blkcnt,
20 const void *buffer);
21
22 lbaint_t (*reserve)(struct sparse_storage *info,
23 lbaint_t blk,
24 lbaint_t blkcnt);
25
26 void (*mssg)(const char *str, char *response);
27 };
28
is_sparse_image(void * buf)29 static inline int is_sparse_image(void *buf)
30 {
31 sparse_header_t *s_header = (sparse_header_t *)buf;
32
33 if ((le32_to_cpu(s_header->magic) == SPARSE_HEADER_MAGIC) &&
34 (le16_to_cpu(s_header->major_version) == 1))
35 return 1;
36
37 return 0;
38 }
39
40 int write_sparse_image(struct sparse_storage *info, const char *part_name,
41 void *data, char *response);
42