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 <mapmem.h>
  15 #include <asm/io.h>
  16
  17 #include <lzma/LzmaTools.h>
  18
  19 static int do_lzmadec(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
  20 {
  21         unsigned long src, dst;
  22         SizeT src_len = ~0UL, dst_len = ~0UL;
  23         int ret;
  24
  25         switch (argc) {
  26         case 4:
  27                 dst_len = simple_strtoul(argv[3], NULL, 16);
  28                 /* fall through */
  29         case 3:
  30                 src = simple_strtoul(argv[1], NULL, 16);
  31                 dst = simple_strtoul(argv[2], NULL, 16);
  32                 break;
  33         default:
  34                 return CMD_RET_USAGE;
  35         }
  36
  37         ret = lzmaBuffToBuffDecompress(map_sysmem(dst, dst_len), &src_len,
  38                                        map_sysmem(src, 0), dst_len);
  39
  40         if (ret != SZ_OK)
  41                 return 1;
  42         printf("Uncompressed size: %ld = %#lX\n", (ulong)src_len,
  43                (ulong)src_len);
  44         env_set_hex("filesize", src_len);
  45
  46         return 0;
  47 }
  48
  49 U_BOOT_CMD(
  50         lzmadec,    4,    1,    do_lzmadec,
  51         "lzma uncompress a memory region",
  52         "srcaddr dstaddr [dstsize]"
  53 );