LXR uboot/common/cmd

   1/*
   2 * (C) Copyright 2001
   3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4 *
   5 * SPDX-License-Identifier:     GPL-2.0+
   6 */
   7
   8/*
   9 * Misc functions
  10 */
  11#include <common.h>
  12#include <command.h>
  13
  14static int do_sleep(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  15{
  16        ulong start = get_timer(0);
  17        ulong delay;
  18
  19        if (argc != 2)
  20                return CMD_RET_USAGE;
  21
  22        delay = simple_strtoul(argv[1], NULL, 10) * CONFIG_SYS_HZ;
  23
  24        while (get_timer(start) < delay) {
  25                if (ctrlc())
  26                        return (-1);
  27
  28                udelay(100);
  29        }
  30
  31        return 0;
  32}
  33
  34U_BOOT_CMD(
  35        sleep ,    2,    1,     do_sleep,
  36        "delay execution for some time",
  37        "N\n"
  38        "    - delay execution for N seconds (N is _decimal_ !!!)"
  39);
  40
  41#ifdef CONFIG_CMD_TIMER
  42static int do_timer(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  43{
  44        static ulong start;
  45
  46        if (argc != 2)
  47                return CMD_RET_USAGE;
  48
  49        if (!strcmp(argv[1], "start"))
  50                start = get_timer(0);
  51
  52        if (!strcmp(argv[1], "get")) {
  53                ulong msecs = get_timer(start) * 1000 / CONFIG_SYS_HZ;
  54                printf("%ld.%03d\n", msecs / 1000, (int)(msecs % 1000));
  55        }
  56
  57        return 0;
  58}
  59
  60U_BOOT_CMD(
  61        timer,    2,    1,     do_timer,
  62        "access the system timer",
  63        "start - Reset the timer reference.\n"
  64        "timer get   - Print the time since 'start'."
  65);
  66#endif
  67