xref: /openbmc/u-boot/cmd/lzmadec.c (revision 7b3dc45e)
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 	unsigned long 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 = 0x%lX\n", src_len, src_len);
44 	setenv_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 );
54