time.c

来自「SMDK2440 boot code, base on vivi」· C语言 代码 · 共 71 行

/*
 * vivi/lib/time.c: Simple timers
 *
 * Author:	Janghoon Lyu
 * Created:	August 05, 2002
 * Copyright:	MIZI Research, Inc.
 *
 * All Rights Reserved
 *
 * $Date: 2003/08/14 09:48:13 $
 * $Revision: 1.7 $
 * $Id: time.c,v 1.7 2003/08/14 09:48:13 nandy Exp $
 *
 */

#include <config.h>
#include <time.h>
#include <vstring.h>
#include <command.h>

extern void arch_udelay(unsigned int usec);
extern void arch_mdelay(unsigned int msec);

void udelay(unsigned int usec)
{
	arch_udelay(usec);
}

void mdelay(unsigned int msec)
{
	arch_mdelay(msec);
}

#if 0
void command_sleep(int argc, const char **argv)
{
	int len;
	unsigned int sec;
	char buf[10];
	char unit;

	if ((argc != 2) || (strncmp(argv[1], "help", 4) == 0)) {
		printk("Usage:\n");
		printk("  sleep <sec> -- 1m == mili 1u == micro 1s == secon\n");
		return;
	}

	len = strlen(argv[1]);
	strncpy(buf, argv[1], len-1);
	buf[len-1] = '\0';
	strncpy(&unit, argv[1]+(len-1), 1);
	sec = (unsigned int)simple_strtoul(buf, NULL, 0);
	if (strncmp("s", (char *)&unit, 1) == 0) {
		printk("sleep %d seconds\n", sec);
		mdelay(sec * 1000);
	} else if (strncmp("m", (char *)&unit, 1) == 0) {
		printk("sleep %d mili-seconds\n", sec);
		mdelay(sec);
	} else if (strncmp("u", (char *)&unit, 1) == 0) {
		printk("sleep %d micro-seconds\n", sec);
		udelay(sec);
	}
}

user_command_t sleep_cmd = {
	"sleep",
	command_sleep,
	NULL
};
#endif