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bootloader/u-boot_2015_04/include/bootretry.h 1.26 KB
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  /*
   * (C) Copyright 2000
   * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   *
   * SPDX-License-Identifier:	GPL-2.0+
   */
  
  #ifndef __BOOTRETRY_H
  #define __BOOTRETRY_H
  
  #ifdef CONFIG_BOOT_RETRY_TIME
  /**
   * bootretry_tstc_timeout() - ensure we get a keypress before timeout
   *
   * Check for a keypress repeatedly, resetting the watchdog each time. If a
   * keypress is not received within the command timeout, return an error.
   *
   * @return 0 if a key is received in time, -ETIMEDOUT if not
   */
  int bootretry_tstc_timeout(void);
  
  /**
   * bootretry_init_cmd_timeout() - set up command timeout
   *
   * Get the required command timeout from the environment.
   */
  void bootretry_init_cmd_timeout(void);
  
  /**
   * bootretry_reset_cmd_timeout() - reset command timeout
   *
   * Reset the command timeout so that the user has a fresh start. This is
   * typically used when input is received from the user.
   */
  void bootretry_reset_cmd_timeout(void);
  
  /** bootretry_dont_retry() - Indicate that we should not retry the boot */
  void bootretry_dont_retry(void);
  #else
  static inline int bootretry_tstc_timeout(void)
  {
  	return 0;
  }
  
  static inline void bootretry_init_cmd_timeout(void)
  {
  }
  
  static inline void bootretry_reset_cmd_timeout(void)
  {
  }
  
  static inline void bootretry_dont_retry(void)
  {
  }
  
  #endif
  
  #endif