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lzmadec.c 1.13 KiB
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    /*
     * (C) Copyright 2013 Patrice Bouchand <pbfwdlist_gmail_com>
     * lzma uncompress command in Uboot
     *
     * made from existing cmd_unzip.c file of Uboot
     *
     * (C) Copyright 2000
     * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
     *
     * SPDX-License-Identifier:	GPL-2.0+
     */
    
    #include <common.h>
    #include <command.h>
    
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    #include <asm/io.h>
    
    #include <lzma/LzmaTools.h>
    
    static int do_lzmadec(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
    {
    	unsigned long src, dst;
    	unsigned long src_len = ~0UL, dst_len = ~0UL;
    	int ret;
    
    	switch (argc) {
    	case 4:
    		dst_len = simple_strtoul(argv[3], NULL, 16);
    		/* fall through */
    	case 3:
    		src = simple_strtoul(argv[1], NULL, 16);
    		dst = simple_strtoul(argv[2], NULL, 16);
    		break;
    	default:
    		return CMD_RET_USAGE;
    	}
    
    	ret = lzmaBuffToBuffDecompress(map_sysmem(dst, dst_len), &src_len,
    				       map_sysmem(src, 0), dst_len);
    
    	if (ret != SZ_OK)
    		return 1;
    	printf("Uncompressed size: %ld = 0x%lX\n", src_len, src_len);
    	setenv_hex("filesize", src_len);
    
    	return 0;
    }
    
    U_BOOT_CMD(
    	lzmadec,    4,    1,    do_lzmadec,
    	"lzma uncompress a memory region",
    	"srcaddr dstaddr [dstsize]"
    );