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 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
