183d290c5STom Rini /* SPDX-License-Identifier: GPL-2.0+ */
23d4ef38dSMaxime Ripard /*
33d4ef38dSMaxime Ripard * Copyright 2014 Broadcom Corporation.
43d4ef38dSMaxime Ripard */
53d4ef38dSMaxime Ripard
63d4ef38dSMaxime Ripard #include <part.h>
73d4ef38dSMaxime Ripard #include <sparse_format.h>
83d4ef38dSMaxime Ripard
93d4ef38dSMaxime Ripard #define ROUNDUP(x, y) (((x) + ((y) - 1)) & ~((y) - 1))
103d4ef38dSMaxime Ripard
11cc0f08cdSSteve Rae struct sparse_storage {
12cc0f08cdSSteve Rae lbaint_t blksz;
13cc0f08cdSSteve Rae lbaint_t start;
14cc0f08cdSSteve Rae lbaint_t size;
15cc0f08cdSSteve Rae void *priv;
163d4ef38dSMaxime Ripard
17cc0f08cdSSteve Rae lbaint_t (*write)(struct sparse_storage *info,
18cc0f08cdSSteve Rae lbaint_t blk,
19cc0f08cdSSteve Rae lbaint_t blkcnt,
20cc0f08cdSSteve Rae const void *buffer);
212c724046SSteve Rae
222c724046SSteve Rae lbaint_t (*reserve)(struct sparse_storage *info,
232c724046SSteve Rae lbaint_t blk,
242c724046SSteve Rae lbaint_t blkcnt);
252f83f219SJassi Brar
26*c4ded03eSAlex Kiernan void (*mssg)(const char *str, char *response);
27cc0f08cdSSteve Rae };
283d4ef38dSMaxime Ripard
is_sparse_image(void * buf)293d4ef38dSMaxime Ripard static inline int is_sparse_image(void *buf)
303d4ef38dSMaxime Ripard {
313d4ef38dSMaxime Ripard sparse_header_t *s_header = (sparse_header_t *)buf;
323d4ef38dSMaxime Ripard
333d4ef38dSMaxime Ripard if ((le32_to_cpu(s_header->magic) == SPARSE_HEADER_MAGIC) &&
343d4ef38dSMaxime Ripard (le16_to_cpu(s_header->major_version) == 1))
353d4ef38dSMaxime Ripard return 1;
363d4ef38dSMaxime Ripard
373d4ef38dSMaxime Ripard return 0;
383d4ef38dSMaxime Ripard }
393d4ef38dSMaxime Ripard
402f83f219SJassi Brar int write_sparse_image(struct sparse_storage *info, const char *part_name,
41*c4ded03eSAlex Kiernan void *data, char *response);
42