/*
 * Copyright 2000-2009
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include "common.h"
#include <stdlib.h>

#include "command.h"
#include "timer.h"
#include "con-utils.h"


command_ret_t do_echo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	uint_fast8_t putnl = 1;

	(void) cmdtp; (void) flag;

	for (uint_fast8_t i = 1; i < argc; i++) {

		uint_fast8_t backslash = 0;
		char *p = argv[i];
		char c;

		if (i != 1)
			putchar(' ');
		while ((c = *p++) != '\0') {

			if(backslash) {
				backslash = 0;
				if (c == 'c') {
					putnl = 0;
					continue;
				} else
					putchar('\\');
			} else {
				if (c == '\\') {
					backslash = 1;
					continue;
				}
			}
			putchar(c);
		}
	}

	if (putnl)
		putchar('\n');

	return CMD_RET_SUCCESS;
}


command_ret_t do_sleep(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	unsigned long start = get_timer(0);
	unsigned long delay;
	char *sp;
	uint_fast8_t millisec = 0;

	(void) cmdtp; (void) flag;

	if (argc != 2)
		return CMD_RET_USAGE;

	delay = strtoul(argv[1], &sp, 10);

	if (*sp == 'm') {
		millisec = 1;
		sp++;
	}
	if (*sp == 's')
		sp++;
	if (*sp != '\0')
		return CMD_RET_USAGE;

	if (!millisec)
		delay *= 1000;

	while (get_timer(start) < delay) {
		if (ctrlc())
			return CMD_RET_FAILURE;

		udelay(100);
	}

	return CMD_RET_SUCCESS;
}