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Tom Rini83d290c2018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
wdenk38635852002-08-27 05:55:31 +00002/*
3 * (C) Copyright 2001
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
wdenk38635852002-08-27 05:55:31 +00005 */
6
7/*
8 * Misc functions
9 */
10#include <common.h>
11#include <command.h>
Simon Glass24b852a2015-11-08 23:47:45 -070012#include <console.h>
Simon Glassc05ed002020-05-10 11:40:11 -060013#include <linux/delay.h>
wdenk38635852002-08-27 05:55:31 +000014
Simon Glass09140112020-05-10 11:40:03 -060015static int do_sleep(struct cmd_tbl *cmdtp, int flag, int argc,
16 char *const argv[])
wdenk38635852002-08-27 05:55:31 +000017{
Stefan Roesec4c13df2005-10-20 16:36:44 +020018 ulong start = get_timer(0);
mario.six@gdsys.ccc4974632016-07-19 16:20:13 +020019 ulong mdelay = 0;
wdenk38635852002-08-27 05:55:31 +000020 ulong delay;
mario.six@gdsys.ccc4974632016-07-19 16:20:13 +020021 char *frpart;
wdenk38635852002-08-27 05:55:31 +000022
Wolfgang Denk47e26b12010-07-17 01:06:04 +020023 if (argc != 2)
Simon Glass4c12eeb2011-12-10 08:44:01 +000024 return CMD_RET_USAGE;
wdenk38635852002-08-27 05:55:31 +000025
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020026 delay = simple_strtoul(argv[1], NULL, 10) * CONFIG_SYS_HZ;
wdenk38635852002-08-27 05:55:31 +000027
mario.six@gdsys.ccc4974632016-07-19 16:20:13 +020028 frpart = strchr(argv[1], '.');
29
30 if (frpart) {
31 uint mult = CONFIG_SYS_HZ / 10;
32 for (frpart++; *frpart != '\0' && mult > 0; frpart++) {
33 if (*frpart < '0' || *frpart > '9') {
34 mdelay = 0;
35 break;
36 }
37 mdelay += (*frpart - '0') * mult;
38 mult /= 10;
39 }
40 }
41
42 delay += mdelay;
43
Stefan Roesec4c13df2005-10-20 16:36:44 +020044 while (get_timer(start) < delay) {
Kim Phillips088f1b12012-10-29 13:34:31 +000045 if (ctrlc())
Stefan Roesec4c13df2005-10-20 16:36:44 +020046 return (-1);
Wolfgang Denk47e26b12010-07-17 01:06:04 +020047
Kim Phillips088f1b12012-10-29 13:34:31 +000048 udelay(100);
wdenk38635852002-08-27 05:55:31 +000049 }
Stefan Roesec4c13df2005-10-20 16:36:44 +020050
wdenk38635852002-08-27 05:55:31 +000051 return 0;
52}
Stefan Roesec4c13df2005-10-20 16:36:44 +020053
wdenk0d498392003-07-01 21:06:45 +000054U_BOOT_CMD(
Detlev Zundel99121212007-05-23 19:02:41 +020055 sleep , 2, 1, do_sleep,
Peter Tyser2fb26042009-01-27 18:03:12 -060056 "delay execution for some time",
wdenk8bde7f72003-06-27 21:31:46 +000057 "N\n"
mario.six@gdsys.ccc4974632016-07-19 16:20:13 +020058 " - delay execution for N seconds (N is _decimal_ and can be\n"
59 " fractional)"
wdenk8bde7f72003-06-27 21:31:46 +000060);
Joe Hershbergerda83bcd2012-10-03 12:14:57 +000061
62#ifdef CONFIG_CMD_TIMER
Simon Glass09140112020-05-10 11:40:03 -060063static int do_timer(struct cmd_tbl *cmdtp, int flag, int argc,
64 char *const argv[])
Joe Hershbergerda83bcd2012-10-03 12:14:57 +000065{
66 static ulong start;
67
68 if (argc != 2)
69 return CMD_RET_USAGE;
70
71 if (!strcmp(argv[1], "start"))
72 start = get_timer(0);
73
74 if (!strcmp(argv[1], "get")) {
75 ulong msecs = get_timer(start) * 1000 / CONFIG_SYS_HZ;
76 printf("%ld.%03d\n", msecs / 1000, (int)(msecs % 1000));
77 }
78
79 return 0;
80}
81
82U_BOOT_CMD(
83 timer, 2, 1, do_timer,
84 "access the system timer",
85 "start - Reset the timer reference.\n"
86 "timer get - Print the time since 'start'."
87);
88#endif