1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright 2014 Broadcom Corporation.
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
5*4882a593Smuzhiyun */
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun #include <part.h>
8*4882a593Smuzhiyun #include <sparse_format.h>
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun #define ROUNDUP(x, y) (((x) + ((y) - 1)) & ~((y) - 1))
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun struct sparse_storage {
13*4882a593Smuzhiyun lbaint_t blksz;
14*4882a593Smuzhiyun lbaint_t start;
15*4882a593Smuzhiyun lbaint_t size;
16*4882a593Smuzhiyun void *priv;
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun lbaint_t (*write)(struct sparse_storage *info,
19*4882a593Smuzhiyun lbaint_t blk,
20*4882a593Smuzhiyun lbaint_t blkcnt,
21*4882a593Smuzhiyun const void *buffer);
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun lbaint_t (*reserve)(struct sparse_storage *info,
24*4882a593Smuzhiyun lbaint_t blk,
25*4882a593Smuzhiyun lbaint_t blkcnt);
26*4882a593Smuzhiyun };
27*4882a593Smuzhiyun
is_sparse_image(void * buf)28*4882a593Smuzhiyun static inline int is_sparse_image(void *buf)
29*4882a593Smuzhiyun {
30*4882a593Smuzhiyun sparse_header_t *s_header = (sparse_header_t *)buf;
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun if ((le32_to_cpu(s_header->magic) == SPARSE_HEADER_MAGIC) &&
33*4882a593Smuzhiyun (le16_to_cpu(s_header->major_version) == 1))
34*4882a593Smuzhiyun return 1;
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun return 0;
37*4882a593Smuzhiyun }
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun void write_sparse_image(struct sparse_storage *info, const char *part_name,
40*4882a593Smuzhiyun void *data, unsigned sz, char *response);
41