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