include/bootretry.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * (C) Copyright 2000
   4  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   5  */
   6
   7 #ifndef __BOOTRETRY_H
   8 #define __BOOTRETRY_H
   9
  10 #ifdef CONFIG_BOOT_RETRY_TIME
  11 /**
  12  * bootretry_tstc_timeout() - ensure we get a keypress before timeout
  13  *
  14  * Check for a keypress repeatedly, resetting the watchdog each time. If a
  15  * keypress is not received within the command timeout, return an error.
  16  *
  17  * @return 0 if a key is received in time, -ETIMEDOUT if not
  18  */
  19 int bootretry_tstc_timeout(void);
  20
  21 /**
  22  * bootretry_init_cmd_timeout() - set up command timeout
  23  *
  24  * Get the required command timeout from the environment.
  25  */
  26 void bootretry_init_cmd_timeout(void);
  27
  28 /**
  29  * bootretry_reset_cmd_timeout() - reset command timeout
  30  *
  31  * Reset the command timeout so that the user has a fresh start. This is
  32  * typically used when input is received from the user.
  33  */
  34 void bootretry_reset_cmd_timeout(void);
  35
  36 /** bootretry_dont_retry() - Indicate that we should not retry the boot */
  37 void bootretry_dont_retry(void);
  38 #else
  39 static inline int bootretry_tstc_timeout(void)
  40 {
  41         return 0;
  42 }
  43
  44 static inline void bootretry_init_cmd_timeout(void)
  45 {
  46 }
  47
  48 static inline void bootretry_reset_cmd_timeout(void)
  49 {
  50 }
  51
  52 static inline void bootretry_dont_retry(void)
  53 {
  54 }
  55
  56 #endif
  57
  58 #endif