1*3d4ef38dSMaxime Ripard /* 2*3d4ef38dSMaxime Ripard * Copyright 2014 Broadcom Corporation. 3*3d4ef38dSMaxime Ripard * 4*3d4ef38dSMaxime Ripard * SPDX-License-Identifier: GPL-2.0+ 5*3d4ef38dSMaxime Ripard */ 6*3d4ef38dSMaxime Ripard 7*3d4ef38dSMaxime Ripard #include <part.h> 8*3d4ef38dSMaxime Ripard #include <sparse_format.h> 9*3d4ef38dSMaxime Ripard 10*3d4ef38dSMaxime Ripard #define ROUNDUP(x, y) (((x) + ((y) - 1)) & ~((y) - 1)) 11*3d4ef38dSMaxime Ripard 12*3d4ef38dSMaxime Ripard typedef struct sparse_storage { 13*3d4ef38dSMaxime Ripard unsigned int block_sz; 14*3d4ef38dSMaxime Ripard unsigned int start; 15*3d4ef38dSMaxime Ripard unsigned int size; 16*3d4ef38dSMaxime Ripard const char *name; 17*3d4ef38dSMaxime Ripard 18*3d4ef38dSMaxime Ripard int (*write)(struct sparse_storage *storage, void *priv, 19*3d4ef38dSMaxime Ripard unsigned int offset, unsigned int size, 20*3d4ef38dSMaxime Ripard char *data); 21*3d4ef38dSMaxime Ripard } sparse_storage_t; 22*3d4ef38dSMaxime Ripard 23*3d4ef38dSMaxime Ripard static inline int is_sparse_image(void *buf) 24*3d4ef38dSMaxime Ripard { 25*3d4ef38dSMaxime Ripard sparse_header_t *s_header = (sparse_header_t *)buf; 26*3d4ef38dSMaxime Ripard 27*3d4ef38dSMaxime Ripard if ((le32_to_cpu(s_header->magic) == SPARSE_HEADER_MAGIC) && 28*3d4ef38dSMaxime Ripard (le16_to_cpu(s_header->major_version) == 1)) 29*3d4ef38dSMaxime Ripard return 1; 30*3d4ef38dSMaxime Ripard 31*3d4ef38dSMaxime Ripard return 0; 32*3d4ef38dSMaxime Ripard } 33*3d4ef38dSMaxime Ripard 34*3d4ef38dSMaxime Ripard int store_sparse_image(sparse_storage_t *storage, void *storage_priv, 35*3d4ef38dSMaxime Ripard unsigned int session_id, void *data); 36