LXR uboot/cmd/lzmadec.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * (C) Copyright 2013 Patrice Bouchand <pbfwdlist_gmail_com>
   4 * lzma uncompress command in Uboot
   5 *
   6 * made from existing cmd_unzip.c file of Uboot
   7 *
   8 * (C) Copyright 2000
   9 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  10 */
  11
  12#include <common.h>
  13#include <command.h>
  14#include <env.h>
  15#include <mapmem.h>
  16#include <asm/io.h>
  17
  18#include <lzma/LzmaTools.h>
  19
  20static int do_lzmadec(struct cmd_tbl *cmdtp, int flag, int argc,
  21                      char *const argv[])
  22{
  23        unsigned long src, dst;
  24        SizeT src_len = ~0UL, dst_len = ~0UL;
  25        int ret;
  26
  27        switch (argc) {
  28        case 4:
  29                dst_len = hextoul(argv[3], NULL);
  30                /* fall through */
  31        case 3:
  32                src = hextoul(argv[1], NULL);
  33                dst = hextoul(argv[2], NULL);
  34                break;
  35        default:
  36                return CMD_RET_USAGE;
  37        }
  38
  39        ret = lzmaBuffToBuffDecompress(map_sysmem(dst, dst_len), &src_len,
  40                                       map_sysmem(src, 0), dst_len);
  41
  42        if (ret != SZ_OK)
  43                return 1;
  44        printf("Uncompressed size: %ld = %#lX\n", (ulong)src_len,
  45               (ulong)src_len);
  46        env_set_hex("filesize", src_len);
  47
  48        return 0;
  49}
  50
  51U_BOOT_CMD(
  52        lzmadec,    4,    1,    do_lzmadec,
  53        "lzma uncompress a memory region",
  54        "srcaddr dstaddr [dstsize]"
  55);
  56