LXR uboot/include/image-sparse.h

   1/* SPDX-License-Identifier: GPL-2.0+ */
   2/*
   3 * Copyright 2014 Broadcom Corporation.
   4 */
   5
   6#include <compiler.h>
   7#include <part.h>
   8#include <sparse_format.h>
   9
  10#define ROUNDUP(x, y)   (((x) + ((y) - 1)) & ~((y) - 1))
  11
  12struct sparse_storage {
  13        lbaint_t        blksz;
  14        lbaint_t        start;
  15        lbaint_t        size;
  16        void            *priv;
  17
  18        lbaint_t        (*write)(struct sparse_storage *info,
  19                                 lbaint_t blk,
  20                                 lbaint_t blkcnt,
  21                                 const void *buffer);
  22
  23        lbaint_t        (*reserve)(struct sparse_storage *info,
  24                                 lbaint_t blk,
  25                                 lbaint_t blkcnt);
  26
  27        void            (*mssg)(const char *str, char *response);
  28};
  29
  30static inline int is_sparse_image(void *buf)
  31{
  32        sparse_header_t *s_header = (sparse_header_t *)buf;
  33
  34        if ((le32_to_cpu(s_header->magic) == SPARSE_HEADER_MAGIC) &&
  35            (le16_to_cpu(s_header->major_version) == 1))
  36                return 1;
  37
  38        return 0;
  39}
  40
  41int write_sparse_image(struct sparse_storage *info, const char *part_name,
  42                       void *data, char *response);
  43