u-boot/common/cmd_misc.c
Wolfgang Denk 1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00

67 lines
1.2 KiB
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>
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