13d4ef38dSMaxime Ripard /* 23d4ef38dSMaxime Ripard * Copyright 2014 Broadcom Corporation. 33d4ef38dSMaxime Ripard * 43d4ef38dSMaxime Ripard * SPDX-License-Identifier: GPL-2.0+ 53d4ef38dSMaxime Ripard */ 63d4ef38dSMaxime Ripard 73d4ef38dSMaxime Ripard #include <part.h> 83d4ef38dSMaxime Ripard #include <sparse_format.h> 93d4ef38dSMaxime Ripard 103d4ef38dSMaxime Ripard #define ROUNDUP(x, y) (((x) + ((y) - 1)) & ~((y) - 1)) 113d4ef38dSMaxime Ripard 12cc0f08cdSSteve Rae struct sparse_storage { 13cc0f08cdSSteve Rae lbaint_t blksz; 14cc0f08cdSSteve Rae lbaint_t start; 15cc0f08cdSSteve Rae lbaint_t size; 16cc0f08cdSSteve Rae void *priv; 173d4ef38dSMaxime Ripard 18cc0f08cdSSteve Rae lbaint_t (*write)(struct sparse_storage *info, 19cc0f08cdSSteve Rae lbaint_t blk, 20cc0f08cdSSteve Rae lbaint_t blkcnt, 21cc0f08cdSSteve Rae const void *buffer); 22cc0f08cdSSteve Rae }; 233d4ef38dSMaxime Ripard 243d4ef38dSMaxime Ripard static inline int is_sparse_image(void *buf) 253d4ef38dSMaxime Ripard { 263d4ef38dSMaxime Ripard sparse_header_t *s_header = (sparse_header_t *)buf; 273d4ef38dSMaxime Ripard 283d4ef38dSMaxime Ripard if ((le32_to_cpu(s_header->magic) == SPARSE_HEADER_MAGIC) && 293d4ef38dSMaxime Ripard (le16_to_cpu(s_header->major_version) == 1)) 303d4ef38dSMaxime Ripard return 1; 313d4ef38dSMaxime Ripard 323d4ef38dSMaxime Ripard return 0; 333d4ef38dSMaxime Ripard } 343d4ef38dSMaxime Ripard 35cc0f08cdSSteve Rae void write_sparse_image(struct sparse_storage *info, const char *part_name, 36*9bc34799SSteve Rae void *data, unsigned sz); 37