1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3 * Copyright 2014 Broadcom Corporation.
4 */
5
6 #include <compiler.h>
7 #include <part.h>
8 #include <sparse_format.h>
9
10 #define ROUNDUP(x, y) (((x) + ((y) - 1)) & ~((y) - 1))
11
12 struct sparse_storage {
13 lbaint_t blksz;
14 lbaint_t start;
15 lbaint_t size;
16 void *priv;
17
18 lbaint_t (*write)(struct sparse_storage *info,
19 lbaint_t blk,
20 lbaint_t blkcnt,
21 const void *buffer);
22
23 lbaint_t (*reserve)(struct sparse_storage *info,
24 lbaint_t blk,
25 lbaint_t blkcnt);
26
27 void (*mssg)(const char *str, char *response);
28 };
29
is_sparse_image(void * buf)30 static inline int is_sparse_image(void *buf)
31 {
32 sparse_header_t *s_header = (sparse_header_t *)buf;
33
34 if ((le32_to_cpu(s_header->magic) == SPARSE_HEADER_MAGIC) &&
35 (le16_to_cpu(s_header->major_version) == 1))
36 return 1;
37
38 return 0;
39 }
40
41 int write_sparse_image(struct sparse_storage *info, const char *part_name,
42 void *data, char *response);
43