xref: /openbmc/u-boot/cmd/lzmadec.c (revision ae485b54)
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 );
54