[people/ms/u-boot.git] / cmd / misc.c

/*
 * (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 mdelay = 0;
	ulong delay;
	char *frpart;

	if (argc != 2)
		return CMD_RET_USAGE;

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

	frpart = strchr(argv[1], '.');

	if (frpart) {
		uint mult = CONFIG_SYS_HZ / 10;
		for (frpart++; *frpart != '\0' && mult > 0; frpart++) {
			if (*frpart < '0' || *frpart > '9') {
				mdelay = 0;
				break;
			}
			mdelay += (*frpart - '0') * mult;
			mult /= 10;
		}
	}

	delay += mdelay;

	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_ and can be\n"
	"      fractional)"
);

#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
Commit	Line	Data
3863585b WD	1	/*
	2	* (C) Copyright 2001
	3	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	4	*
1a459660	5	* SPDX-License-Identifier: GPL-2.0+
3863585b WD	6	*/
	7
	8	/*
	9	* Misc functions
	10	*/
	11	#include <common.h>
	12	#include <command.h>
24b852a7	13	#include <console.h>
3863585b	14
088f1b19	15	static int do_sleep(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
3863585b	16	{
c4c13df2	17	ulong start = get_timer(0);
c4974632	18	ulong mdelay = 0;
3863585b	19	ulong delay;
c4974632	20	char *frpart;
3863585b	21
47e26b1b	22	if (argc != 2)
4c12eeb8	23	return CMD_RET_USAGE;
3863585b	24
6d0f6bcf	25	delay = simple_strtoul(argv[1], NULL, 10) * CONFIG_SYS_HZ;
3863585b	26
c4974632	27	frpart = strchr(argv[1], '.');
	28
	29	if (frpart) {
	30	uint mult = CONFIG_SYS_HZ / 10;
	31	for (frpart++; *frpart != '\0' && mult > 0; frpart++) {
	32	if (frpart < '0' \|\| frpart > '9') {
	33	mdelay = 0;
	34	break;
	35	}
	36	mdelay += (frpart - '0') mult;
	37	mult /= 10;
	38	}
	39	}
	40
	41	delay += mdelay;
	42
c4c13df2	43	while (get_timer(start) < delay) {
088f1b19	44	if (ctrlc())
c4c13df2	45	return (-1);
47e26b1b	46
088f1b19	47	udelay(100);
3863585b	48	}
c4c13df2	49
3863585b WD	50	return 0;
3863585b WD	51	}
c4c13df2	52
0d498393	53	U_BOOT_CMD(
9912121f	54	sleep , 2, 1, do_sleep,
2fb2604d	55	"delay execution for some time",
8bde7f77	56	"N\n"
c4974632	57	" - delay execution for N seconds (N is _decimal_ and can be\n"
c4974632	58	" fractional)"
8bde7f77	59	);
da83bcd7 JH	60
	61	#ifdef CONFIG_CMD_TIMER
	62	static int do_timer(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	63	{
	64	static ulong start;
	65
	66	if (argc != 2)
	67	return CMD_RET_USAGE;
	68
	69	if (!strcmp(argv[1], "start"))
	70	start = get_timer(0);
	71
	72	if (!strcmp(argv[1], "get")) {
	73	ulong msecs = get_timer(start) * 1000 / CONFIG_SYS_HZ;
	74	printf("%ld.%03d\n", msecs / 1000, (int)(msecs % 1000));
	75	}
	76
	77	return 0;
	78	}
	79
	80	U_BOOT_CMD(
	81	timer, 2, 1, do_timer,
	82	"access the system timer",
	83	"start - Reset the timer reference.\n"
	84	"timer get - Print the time since 'start'."
	85	);
	86	#endif