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authorJuergen Beisert <j.beisert@pengutronix.de>2007-11-09 21:13:55 +0100
committerJuergen Beisert <j.beisert@pengutronix.de>2007-11-12 16:28:23 +0100
commitd59c600c656d08410ea862c582fbd77432c3ca47 (patch)
tree6c03b005910d262d7740348dae648c2cdfc7fe2e /commands/memcpy.c
parent57cae4e82669748f94fad4d741c3fcf9cde128ac (diff)
downloadbarebox-d59c600c656d08410ea862c582fbd77432c3ca47.tar.gz
separating memory commands
Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>
Diffstat (limited to 'commands/memcpy.c')
-rw-r--r--commands/memcpy.c152
1 files changed, 152 insertions, 0 deletions
diff --git a/commands/memcpy.c b/commands/memcpy.c
new file mode 100644
index 0000000..9935ce0
--- /dev/null
+++ b/commands/memcpy.c
@@ -0,0 +1,152 @@
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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
+ */
+
+/**
+ * @file
+ * @brief memcpy: memory copy command
+ */
+
+#include <common.h>
+#include <command.h>
+#include <malloc.h>
+#include <errno.h>
+#include <fs.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <linux/stat.h>
+#include <xfuncs.h>
+
+static int do_mem_cp(cmd_tbl_t *cmdtp, int argc, char *argv[])
+{
+ ulong count;
+ ulong dest, src;
+ char *sourcefile = memory_device;
+ char *destfile = memory_device;
+ int sourcefd, destfd;
+ int mode = O_RWSIZE_1;
+ struct stat statbuf;
+ int ret = 0;
+
+ if (mem_parse_options(argc, argv, "bwls:d:", &mode, &sourcefile, &destfile) < 0)
+ return 1;
+
+ if (optind + 2 > argc) {
+ u_boot_cmd_usage(cmdtp);
+ return 1;
+ }
+
+ src = simple_strtoul(argv[optind], NULL, 0);
+ dest = simple_strtoul(argv[optind + 1], NULL, 0);
+
+ if (optind + 2 == argc) {
+ if (sourcefile == memory_device) {
+ printf("source and count not given\n");
+ return 1;
+ }
+ if (stat(sourcefile, &statbuf)) {
+ perror("stat");
+ return 1;
+ }
+ count = statbuf.st_size - src;
+ } else {
+ count = simple_strtoul(argv[optind + 2], NULL, 0);
+ }
+
+ sourcefd = open_and_lseek(sourcefile, mode | O_RDONLY, src);
+ if (sourcefd < 0)
+ return 1;
+
+ destfd = open_and_lseek(destfile, O_WRONLY | O_CREAT | mode, dest);
+ if (destfd < 0) {
+ close(sourcefd);
+ return 1;
+ }
+
+ while (count > 0) {
+ int now, r, w;
+
+ now = min(RW_BUF_SIZE, count);
+
+ if ((r = read(sourcefd, rw_buf, now)) < 0) {
+ perror("read");
+ goto out;
+ }
+
+ if ((w = write(destfd, rw_buf, r)) < 0) {
+ perror("write");
+ goto out;
+ }
+
+ if (r < now)
+ break;
+
+ if (w < r)
+ break;
+
+ count -= now;
+ }
+
+ if (count) {
+ printf("ran out of data\n");
+ ret = 1;
+ }
+
+out:
+ close(sourcefd);
+ close(destfd);
+
+ return ret;
+}
+
+static __maybe_unused char cmd_memcpy_help[] =
+"Usage: memcpy [OPTIONS] <src> <dst> <count>\n"
+"\n"
+"options:\n"
+" -b, -w, -l use byte, halfword, or word accesses\n"
+" -s <file> source file (default /dev/mem)\n"
+" -d <file> destination file (default /dev/mem)\n"
+"\n"
+"Copy memory at <src> of <count> bytes to <dst>\n";
+
+U_BOOT_CMD_START(memcpy)
+ .maxargs = CONFIG_MAXARGS,
+ .cmd = do_mem_cp,
+ .usage = "memory copy",
+ U_BOOT_CMD_HELP(cmd_memcpy_help)
+U_BOOT_CMD_END
+
+/**
+@page mcpy_command memcpy: Copy something to something
+
+Usage is: memcpy [OPTIONS] \<src> \<dst> \<count>
+
+Options are:
+- -s \<file> source file (default \c /dev/mem)
+- -d \<file> destination file (default \c /dev/mem)
+- -b accesses in bytes
+- -w accesses in halfwords (16bit)
+- -l accesses in words (32bit)
+
+Copy memory at \<src> of \<count> bytes to \<dst>.
+
+*/