// SPDX-License-Identifier: GPL-2.0+

  /*
   * (C) Copyright 2001
   * Wolfgang Denk, DENX Software Engineering, wd@denx.de.

   */
  
  /*
   * 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
  "

  	"    - delay execution for N seconds (N is _decimal_ and can be
  "
  	"      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
  ", msecs / 1000, (int)(msecs % 1000));
  	}
  
  	return 0;
  }
  
  U_BOOT_CMD(
  	timer,    2,    1,     do_timer,
  	"access the system timer",
  	"start - Reset the timer reference.
  "
  	"timer get   - Print the time since 'start'."
  );
  #endif