/*
   * (C) Copyright 2000
   * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   *
   * SPDX-License-Identifier:	GPL-2.0+
   */
  
  #include <common.h>
  #include <bootretry.h>
  #include <cli.h>
  #include <errno.h>
  #include <watchdog.h>
  
  #ifndef CONFIG_BOOT_RETRY_MIN
  #define CONFIG_BOOT_RETRY_MIN CONFIG_BOOT_RETRY_TIME
  #endif
  
  static uint64_t endtime;  /* must be set, default is instant timeout */
  static int      retry_time = -1; /* -1 so can call readline before main_loop */
  
  /***************************************************************************
   * initialize command line timeout
   */

  void bootretry_init_cmd_timeout(void)

  {

  	char *s = env_get("bootretry");

  
  	if (s != NULL)
  		retry_time = (int)simple_strtol(s, NULL, 10);
  	else
  		retry_time = CONFIG_BOOT_RETRY_TIME;
  
  	if (retry_time >= 0 && retry_time < CONFIG_BOOT_RETRY_MIN)
  		retry_time = CONFIG_BOOT_RETRY_MIN;
  }
  
  /***************************************************************************
   * reset command line timeout to retry_time seconds
   */

  void bootretry_reset_cmd_timeout(void)

  {
  	endtime = endtick(retry_time);
  }
  
  int bootretry_tstc_timeout(void)
  {
  	while (!tstc()) {	/* while no incoming data */
  		if (retry_time >= 0 && get_ticks() > endtime)
  			return -ETIMEDOUT;
  		WATCHDOG_RESET();
  	}
  
  	return 0;
  }
  
  void bootretry_dont_retry(void)
  {
  	retry_time = -1;
  }