cmd/lzmadec.c

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