common: add zip command support

Signed-off-by: Lei Wen <leiwen@marvell.com>

diff --git a/README b/README
index a745d0b379b395d23de4b1cc6d21e12f3ce4cd56..af76b0ccbfbcd8de8cb9c373555d57e869faf948 100644 (file)
--- a/README
+++ b/README
@@ -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
 

diff --git a/common/Makefile b/common/Makefile
index b56df1d588b6128b505a67d6b72c58b5f0c26052..125b2be31557c22d98bc592b86561b364cc74900 100644 (file)
--- a/common/Makefile
+++ b/common/Makefile
@@ -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

diff --git a/common/cmd_zip.c b/common/cmd_zip.c
new file mode 100644 (file)
index 0000000..a73c86d
--- /dev/null
+++ b/common/cmd_zip.c
@@ -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]"
+);