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 <command.h>
  13 #include <env.h>
  14 #include <mapmem.h>
  15 #include <vsprintf.h>
  16 #include <asm/io.h>
  17
  18 #include <lzma/LzmaTools.h>
  19
  20 static 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
  51 U_BOOT_CMD(
  52         lzmadec,    4,    1,    do_lzmadec,
  53         "lzma uncompress a memory region",
  54         "srcaddr dstaddr [dstsize]"
  55 );