avr/cmd_misc.c

   1 /*
   2  * (C) Copyright 2014,2016 Leo C. <erbl259-lmu@yahoo.de>
   3  *
   4  * Copyright 2000-2009
   5  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   6  *
   7  * SPDX-License-Identifier:     GPL-2.0
   8  */
   9
  10 #include "common.h"
  11 #include "eval_arg.h"
  12 #include <stdbool.h>
  13
  14 #include "command.h"
  15 #include "timer.h"
  16 #include "con-utils.h"
  17 #include "getopt-min.h"
  18
  19
  20 command_ret_t do_echo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  21 {
  22         bool put_newline = true;
  23
  24         (void) cmdtp; (void) flag;
  25
  26         /* reset getopt() */
  27         optind = 0;
  28
  29         int opt;
  30         while ((opt = getopt(argc, argv, PSTR("n"))) != -1) {
  31                 switch (opt) {
  32                 case 'n':
  33                         put_newline = false;
  34                         break;
  35                 default: /* '?' */
  36                         return CMD_RET_USAGE;
  37                 }
  38         }
  39
  40         for (uint_fast8_t i = optind; i < argc; i++) {
  41
  42                 if (i != optind)
  43                         putchar(' ');
  44
  45                 my_puts(argv[i]);
  46         }
  47
  48         if (put_newline)
  49                 putchar('\n');
  50
  51         return CMD_RET_SUCCESS;
  52 }
  53
  54
  55 command_ret_t do_sleep(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  56 {
  57         unsigned long start = get_timer(0);
  58         unsigned long delay;
  59         char *sp;
  60         uint_fast8_t millisec = 0;
  61
  62         (void) cmdtp; (void) flag;
  63
  64         if (argc != 2)
  65                 return CMD_RET_USAGE;
  66
  67         delay = eval_arg(argv[1], &sp);
  68
  69         if (*sp == 'm') {
  70                 millisec = 1;
  71                 sp++;
  72         }
  73         if (*sp == 's')
  74                 sp++;
  75         if (*sp != '\0')
  76                 return CMD_RET_USAGE;
  77
  78         if (!millisec)
  79                 delay *= 1000;
  80
  81         while (get_timer(start) < delay) {
  82                 if (ctrlc())
  83                         return CMD_RET_FAILURE;
  84
  85                 udelay(100);
  86         }
  87
  88         return CMD_RET_SUCCESS;
  89 }