blob: 3b47a0c0957aa852f2189e2ad3b52bdb25785942 [file] [log] [blame]
wdenk38635852002-08-27 05:55:31 +00001/*
2 * (C) Copyright 2001
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24/*
25 * Misc functions
26 */
27#include <common.h>
28#include <command.h>
29
Wolfgang Denk54841ab2010-06-28 22:00:46 +020030int do_sleep (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
wdenk38635852002-08-27 05:55:31 +000031{
Stefan Roesec4c13df2005-10-20 16:36:44 +020032 ulong start = get_timer(0);
wdenk38635852002-08-27 05:55:31 +000033 ulong delay;
34
Wolfgang Denk47e26b12010-07-17 01:06:04 +020035 if (argc != 2)
Simon Glass4c12eeb2011-12-10 08:44:01 +000036 return CMD_RET_USAGE;
wdenk38635852002-08-27 05:55:31 +000037
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020038 delay = simple_strtoul(argv[1], NULL, 10) * CONFIG_SYS_HZ;
wdenk38635852002-08-27 05:55:31 +000039
Stefan Roesec4c13df2005-10-20 16:36:44 +020040 while (get_timer(start) < delay) {
Wolfgang Denk47e26b12010-07-17 01:06:04 +020041 if (ctrlc ())
Stefan Roesec4c13df2005-10-20 16:36:44 +020042 return (-1);
Wolfgang Denk47e26b12010-07-17 01:06:04 +020043
Stefan Roesec4c13df2005-10-20 16:36:44 +020044 udelay (100);
wdenk38635852002-08-27 05:55:31 +000045 }
Stefan Roesec4c13df2005-10-20 16:36:44 +020046
wdenk38635852002-08-27 05:55:31 +000047 return 0;
48}
Stefan Roesec4c13df2005-10-20 16:36:44 +020049
wdenk0d498392003-07-01 21:06:45 +000050U_BOOT_CMD(
Detlev Zundel99121212007-05-23 19:02:41 +020051 sleep , 2, 1, do_sleep,
Peter Tyser2fb26042009-01-27 18:03:12 -060052 "delay execution for some time",
wdenk8bde7f72003-06-27 21:31:46 +000053 "N\n"
Wolfgang Denka89c33d2009-05-24 17:06:54 +020054 " - delay execution for N seconds (N is _decimal_ !!!)"
wdenk8bde7f72003-06-27 21:31:46 +000055);
Joe Hershbergerda83bcd2012-10-03 12:14:57 +000056
57#ifdef CONFIG_CMD_TIMER
58static int do_timer(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
59{
60 static ulong start;
61
62 if (argc != 2)
63 return CMD_RET_USAGE;
64
65 if (!strcmp(argv[1], "start"))
66 start = get_timer(0);
67
68 if (!strcmp(argv[1], "get")) {
69 ulong msecs = get_timer(start) * 1000 / CONFIG_SYS_HZ;
70 printf("%ld.%03d\n", msecs / 1000, (int)(msecs % 1000));
71 }
72
73 return 0;
74}
75
76U_BOOT_CMD(
77 timer, 2, 1, do_timer,
78 "access the system timer",
79 "start - Reset the timer reference.\n"
80 "timer get - Print the time since 'start'."
81);
82#endif