/* * (C) Copyright 2001 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ /* * Misc functions */ #include <common.h> #include <command.h> static int do_sleep(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { ulong start = get_timer(0); ulong delay; if (argc != 2) return CMD_RET_USAGE; delay = simple_strtoul(argv[1], NULL, 10) * CONFIG_SYS_HZ; 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\n" " - delay execution for N seconds (N is _decimal_ !!!)" ); #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\n", msecs / 1000, (int)(msecs % 1000)); } return 0; } U_BOOT_CMD( timer, 2, 1, do_timer, "access the system timer", "start - Reset the timer reference.\n" "timer get - Print the time since 'start'." ); #endif