xref: /openbmc/u-boot/cmd/lzmadec.c (revision 971a54193c9a90a6651064c4a7879e3568e9e7b8)
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  );
55