53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
/*
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* sleep.c - delay execution
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*
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* Copyright (c) 2007 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <common.h>
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#include <command.h>
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#include <clock.h>
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int do_sleep (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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uint64_t start;
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ulong delay;
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if (argc != 2) {
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printf ("Usage:\n%s\n", cmdtp->usage);
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return 1;
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}
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delay = simple_strtoul(argv[1], NULL, 10);
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start = get_time_ns();
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while (!is_timeout(start, delay * SECOND)) {
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if (ctrlc())
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return 1;
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}
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return 0;
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}
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U_BOOT_CMD_START(sleep)
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.maxargs = 2,
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.cmd = do_sleep,
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.usage = "delay execution for n seconds",
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U_BOOT_CMD_END
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