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 <lz4.h>
11
do_unlz4(struct cmd_tbl * cmdtp,int flag,int argc,char * const argv[])12 static 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 = simple_strtoul(argv[1], NULL, 16);
22 dst = simple_strtoul(argv[2], NULL, 16);
23 dst_len = simple_strtoul(argv[3], NULL, 16);
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
41 U_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