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common: add zip command support

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Signed-off-by: Lei Wen <leiwen@marvell.com>
This commit is contained in:
Lei Wen 2012-09-28 04:26:47 +00:00 committed by Tom Rini
parent 88d52c6aff
commit f2b96dfbbc
3 changed files with 67 additions and 0 deletions
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6
README
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@ -1483,6 +1483,12 @@ The following options need to be configured:
can be displayed via the splashscreen support or the
bmp command.
- Do compresssing for memory range:
CONFIG_CMD_ZIP
If this option is set, it would use zlib deflate method
to compress the specified memory at its best effort.
- Compression support:
CONFIG_BZIP2

1
common/Makefile
View file

@ -170,6 +170,7 @@ endif
COBJS-$(CONFIG_CMD_XIMG) += cmd_ximg.o
COBJS-$(CONFIG_YAFFS2) += cmd_yaffs2.o
COBJS-$(CONFIG_CMD_SPL) += cmd_spl.o
COBJS-$(CONFIG_CMD_ZIP) += cmd_zip.o
COBJS-$(CONFIG_CMD_ZFS) += cmd_zfs.o
# others

60
common/cmd_zip.c Normal file
View file

@ -0,0 +1,60 @@
/*
* (C) Copyright 2012
* Lei Wen <leiwen@marvell.com>, Marvell Inc.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <command.h>
static int do_zip(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
unsigned long src, dst;
unsigned long src_len, dst_len = ~0UL;
char buf[32];
switch (argc) {
case 5:
dst_len = simple_strtoul(argv[4], NULL, 16);
/* fall through */
case 4:
src = simple_strtoul(argv[1], NULL, 16);
src_len = simple_strtoul(argv[2], NULL, 16);
dst = simple_strtoul(argv[3], NULL, 16);
break;
default:
return cmd_usage(cmdtp);
}
if (gzip((void *) dst, &dst_len, (void *) src, src_len) != 0)
return 1;
printf("Compressed size: %ld = 0x%lX\n", dst_len, dst_len);
sprintf(buf, "%lX", dst_len);
setenv("filesize", buf);
return 0;
}
U_BOOT_CMD(
zip, 5, 1, do_zip,
"zip a memory region",
"srcaddr srcsize dstaddr [dstsize]"
);