1 files changed, 115 insertions, 0 deletions
diff --git a/commands/timeout.c b/commands/timeout.c
new file mode 100644
index 0000000000..2f7ce03c4e
--- /dev/null
+++ b/commands/timeout.c
@@ -0,0 +1,115 @@
+/*
+ * ls.c - list files and directories
+ *
+ * Copyright (c) 2007 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
+ *
+ * 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 version 2
+ * as published by the Free Software Foundation.
+ *
+ * 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>
+#include <linux/stat.h>
+#include <errno.h>
+#include <getopt.h>
+#include <clock.h>
+
+#define TIMEOUT_RETURN	(1 << 0)
+#define TIMEOUT_CTRLC	(1 << 1)
+#define TIMEOUT_ANYKEY	(1 << 2)
+#define TIMEOUT_SILENT	(1 << 3)
+
+static int do_timeout(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	int timeout = 3, ret = 1;
+	int flags = 0, opt, countdown;
+	uint64_t start, second;
+
+	getopt_reset();
+
+	while((opt = getopt(argc, argv, "t:crsa")) > 0) {
+		switch(opt) {
+		case 'r':
+			flags |= TIMEOUT_RETURN;
+			break;
+		case 'c':
+			flags |= TIMEOUT_CTRLC;
+			break;
+		case 'a':
+			flags |= TIMEOUT_ANYKEY;
+			break;
+		case 's':
+			flags |= TIMEOUT_SILENT;
+			break;
+		default:
+			return 1;
+		}
+	}
+
+	if (optind == argc) {
+		u_boot_cmd_usage(cmdtp);
+		return 1;
+	}
+
+	timeout = simple_strtoul(argv[optind], NULL, 0);
+
+	start = get_time_ns();
+	second = start;
+
+	countdown = timeout;
+
+	if (!(flags & TIMEOUT_SILENT))
+		printf("%2d", countdown--);
+
+	while (!is_timeout(start, timeout * SECOND)) {
+		if (tstc()) {
+			int key = getc();
+			if (flags & TIMEOUT_CTRLC && key == 3)
+				goto  out;
+			if (flags & TIMEOUT_ANYKEY)
+				goto out;
+			if (flags & TIMEOUT_RETURN && key == '\n')
+				goto out;
+		}
+		if (!(flags & TIMEOUT_SILENT) && is_timeout(second, SECOND)) {
+			printf("\b\b%2d", countdown--);
+			second += SECOND;
+		}
+	}
+
+	ret = 0;
+out:
+	if (!(flags & TIMEOUT_SILENT))
+		printf("\n");
+
+	return ret;
+}
+
+static __maybe_unused char cmd_timeout_help[] =
+"Usage: timeout [OPTION]... <timeout>\n"
+"Wait <timeout> seconds for a timeout. Return 1 if the user intervented\n"
+"or 0 if a timeout occured\n"
+"  -a  interrupt on any key\n"
+"  -c  interrupt on ctrl-c\n"
+"  -r  interrupt on return\n"
+"  -s  silent mode\n";
+
+U_BOOT_CMD_START(timeout)
+	.maxargs	= CONFIG_MAXARGS,
+	.cmd		= do_timeout,
+	.usage		= "wait for a specified timeout",
+	U_BOOT_CMD_HELP(cmd_timeout_help)
+U_BOOT_CMD_END
+