[PATCH] add new 'unzip' command to u-boot commandline
common/cmd_mem.c: new command "unzip srcaddr dstaddr [dstsize]" to unzip from
memory to memory, and option CONFIG_CMD_UNZIP to enable it
Signed-off-by: Werner Almesberger <[EMAIL PROTECTED]>
Signed-off-by: Harald Welte <[EMAIL PROTECTED]>
diff --git a/common/cmd_mem.c b/common/cmd_mem.c
index d6d7a5b..656f519 100644
--- a/common/cmd_mem.c
+++ b/common/cmd_mem.c
@@ -1191,6 +1191,34 @@ int do_mem_crc (cmd_tbl_t *cmdtp, int flag, int argc,
char *argv[])
}
#endif /* CONFIG_CRC32_VERIFY */
+
+#ifdef CONFIG_CMD_UNZIP
+int gunzip (void *, int, unsigned char *, unsigned long *);
+
+int do_unzip ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ unsigned long src, dst;
+ unsigned long src_len = ~0UL, dst_len = ~0UL;
+ int err;
+
+ 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:
+ printf ("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ }
+
+ return !!gunzip((void *) dst, dst_len, (void *) src, &src_len);
+}
+#endif /* CONFIG_CMD_UNZIP */
+
+
/**************************************************/
#if defined(CONFIG_CMD_MEMORY)
U_BOOT_CMD(
@@ -1294,5 +1322,13 @@ U_BOOT_CMD(
);
#endif /* CONFIG_MX_CYCLIC */
+#ifdef CONFIG_CMD_UNZIP
+U_BOOT_CMD(
+ unzip, 4, 1, do_unzip,
+ "unzip - unzip a memory region\n",
+ "srcaddr dstaddr [dstsize]\n"
+);
+#endif /* CONFIG_CMD_UNZIP */
+
#endif
#endif
diff --git a/include/config_cmd_all.h b/include/config_cmd_all.h
index c2bb094..2cb2f67 100644
--- a/include/config_cmd_all.h
+++ b/include/config_cmd_all.h
@@ -77,6 +77,7 @@
#define CONFIG_CMD_SPI /* SPI utility */
#define CONFIG_CMD_TERMINAL /* built-in Serial Terminal */
#define CONFIG_CMD_UNIVERSE /* Tundra Universe Support */
+#define CONFIG_CMD_UNZIP /* unzip from memory to memory */
#define CONFIG_CMD_USB /* USB Support */
#define CONFIG_CMD_VFD /* VFD support (TRAB) */
#define CONFIG_CMD_XIMG /* Load part of Multi Image */
--
- Harald Welte <[EMAIL PROTECTED]> http://laforge.gnumonks.org/
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