1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Copyright (C) 2020
4 * FUJITSU COMPUTERTECHNOLOGIES LIMITED. All rights reserved.
5 */
6
7#include <common.h>
8#include <command.h>
9#include <env.h>
10#include <u-boot/lz4.h>
11
12static int do_unlz4(struct cmd_tbl *cmdtp, int flag, int argc,
13		    char *const argv[])
14{
15	unsigned long src, dst;
16	size_t src_len = ~0UL, dst_len = ~0UL;
17	int ret;
18
19	switch (argc) {
20	case 4:
21		src = hextoul(argv[1], NULL);
22		dst = hextoul(argv[2], NULL);
23		dst_len = hextoul(argv[3], NULL);
24		break;
25	default:
26		return CMD_RET_USAGE;
27	}
28
29	ret = ulz4fn((void *)src, src_len, (void *)dst, &dst_len);
30	if (ret) {
31		printf("Uncompressed err :%d\n", ret);
32		return 1;
33	}
34
35	printf("Uncompressed size: %zd = 0x%zX\n", dst_len, dst_len);
36	env_set_hex("filesize", dst_len);
37
38	return 0;
39}
40
41U_BOOT_CMD(unlz4, 4, 1, do_unlz4,
42	   "lz4 uncompress a memory region",
43	   "srcaddr dstaddr dstsize\n"
44	   "NOTE: Specify the destination size that is sufficiently larger\n"
45	   " than the source size.\n"
46);
47