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         int opt;
  26         while ((opt = getopt(argc, argv, PSTR("n"))) != -1) {
  27                 switch (opt) {
  28                 case 'n':
  29                         put_newline = false;
  30                         break;
  31                 default: /* '?' */
  32                         return CMD_RET_USAGE;
  33                 }
  34         }
  35
  36         for (uint_fast8_t i = optind; i < argc; i++) {
  37
  38                 if (i != optind)
  39                         putchar(' ');
  40
  41                 my_puts(argv[i]);
  42         }
  43
  44         if (put_newline)
  45                 putchar('\n');
  46
  47         return CMD_RET_SUCCESS;
  48 }
  49
  50
  51 command_ret_t do_sleep(cmd_tbl_t *cmdtp, uint_fast8_t flag, int argc, char * const argv[])
  52 {
  53         unsigned long start = get_timer(0);
  54         unsigned long delay;
  55         char *sp;
  56         uint_fast8_t millisec = 0;
  57
  58         (void) cmdtp; (void) flag;
  59
  60         if (argc != 2)
  61                 return CMD_RET_USAGE;
  62
  63         delay = eval_arg(argv[1], &sp);
  64
  65         if (*sp == 'm') {
  66                 millisec = 1;
  67                 sp++;
  68         }
  69         if (*sp == 's')
  70                 sp++;
  71         if (*sp != '\0')
  72                 return CMD_RET_USAGE;
  73
  74         if (!millisec)
  75                 delay *= 1000;
  76
  77         while (get_timer(start) < delay) {
  78                 if (ctrlc())
  79                         return CMD_RET_FAILURE;
  80
  81                 udelay(100);
  82         }
  83
  84         return CMD_RET_SUCCESS;
  85 }