u-boot/cmd/sleep.c
Simon Glass 0b1284eb52 global: Convert simple_strtoul() with decimal to dectoul()
It is a pain to have to specify the value 10 in each call. Add a new
dectoul() function and update the code to use it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-08-02 13:32:14 -04:00

58 lines
1.0 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2001
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*/
#include <common.h>
#include <command.h>
#include <console.h>
#include <linux/delay.h>
static int do_sleep(struct cmd_tbl *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 = dectoul(argv[1], NULL) * 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 CMD_RET_FAILURE;
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)"
);