common/cmd_zip.c

   1 /*
   2  * (C) Copyright 2012
   3  * Lei Wen <leiwen@marvell.com>, Marvell Inc.
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 #include <common.h>
  25 #include <command.h>
  26
  27 static int do_zip(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  28 {
  29         unsigned long src, dst;
  30         unsigned long src_len, dst_len = ~0UL;
  31
  32         switch (argc) {
  33                 case 5:
  34                         dst_len = simple_strtoul(argv[4], NULL, 16);
  35                         /* fall through */
  36                 case 4:
  37                         src = simple_strtoul(argv[1], NULL, 16);
  38                         src_len = simple_strtoul(argv[2], NULL, 16);
  39                         dst = simple_strtoul(argv[3], NULL, 16);
  40                         break;
  41                 default:
  42                         return cmd_usage(cmdtp);
  43         }
  44
  45         if (gzip((void *) dst, &dst_len, (void *) src, src_len) != 0)
  46                 return 1;
  47
  48         printf("Compressed size: %ld = 0x%lX\n", dst_len, dst_len);
  49         setenv_hex("filesize", dst_len);
  50
  51         return 0;
  52 }
  53
  54 U_BOOT_CMD(
  55         zip,    5,      1,      do_zip,
  56         "zip a memory region",
  57         "srcaddr srcsize dstaddr [dstsize]"
  58 );