58 lines
1.0 KiB
C
58 lines
1.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2001
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*/
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#include <common.h>
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#include <command.h>
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#include <console.h>
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#include <linux/delay.h>
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static int do_sleep(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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ulong start = get_timer(0);
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ulong mdelay = 0;
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ulong delay;
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char *frpart;
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if (argc != 2)
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return CMD_RET_USAGE;
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delay = dectoul(argv[1], NULL) * CONFIG_SYS_HZ;
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frpart = strchr(argv[1], '.');
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if (frpart) {
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uint mult = CONFIG_SYS_HZ / 10;
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for (frpart++; *frpart != '\0' && mult > 0; frpart++) {
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if (*frpart < '0' || *frpart > '9') {
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mdelay = 0;
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break;
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}
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mdelay += (*frpart - '0') * mult;
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mult /= 10;
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}
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}
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delay += mdelay;
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while (get_timer(start) < delay) {
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if (ctrlc())
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return CMD_RET_FAILURE;
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udelay(100);
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}
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return 0;
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}
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U_BOOT_CMD(
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sleep , 2, 1, do_sleep,
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"delay execution for some time",
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"N\n"
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" - delay execution for N seconds (N is _decimal_ and can be\n"
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" fractional)"
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);
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