summaryrefslogtreecommitdiffstats
path: root/cmd/misc.c
blob: 39d86835cff76122cc5940f521e5e4e6f2c2b11d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
/*
 * (C) Copyright 2001
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

/*
 * Misc functions
 */
#include <common.h>
#include <command.h>
#include <console.h>

static int do_sleep(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	ulong start = get_timer(0);
	ulong delay;

	if (argc != 2)
		return CMD_RET_USAGE;

	delay = simple_strtoul(argv[1], NULL, 10) * CONFIG_SYS_HZ;

	while (get_timer(start) < delay) {
		if (ctrlc())
			return (-1);

		udelay(100);
	}

	return 0;
}

U_BOOT_CMD(
	sleep ,    2,    1,     do_sleep,
	"delay execution for some time",
	"N\n"
	"    - delay execution for N seconds (N is _decimal_ !!!)"
);

#ifdef CONFIG_CMD_TIMER
static int do_timer(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	static ulong start;

	if (argc != 2)
		return CMD_RET_USAGE;

	if (!strcmp(argv[1], "start"))
		start = get_timer(0);

	if (!strcmp(argv[1], "get")) {
		ulong msecs = get_timer(start) * 1000 / CONFIG_SYS_HZ;
		printf("%ld.%03d\n", msecs / 1000, (int)(msecs % 1000));
	}

	return 0;
}

U_BOOT_CMD(
	timer,    2,    1,     do_timer,
	"access the system timer",
	"start - Reset the timer reference.\n"
	"timer get   - Print the time since 'start'."
);
#endif
OpenPOWER on IntegriCloud