60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
/*
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* (C) Copyright 2000
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <bootretry.h>
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#include <cli.h>
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#include <errno.h>
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#include <watchdog.h>
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#ifndef CONFIG_BOOT_RETRY_MIN
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#define CONFIG_BOOT_RETRY_MIN CONFIG_BOOT_RETRY_TIME
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#endif
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static uint64_t endtime; /* must be set, default is instant timeout */
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static int retry_time = -1; /* -1 so can call readline before main_loop */
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/***************************************************************************
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* initialize command line timeout
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*/
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void bootretry_init_cmd_timeout(void)
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{
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char *s = getenv("bootretry");
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if (s != NULL)
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retry_time = (int)simple_strtol(s, NULL, 10);
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else
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retry_time = CONFIG_BOOT_RETRY_TIME;
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if (retry_time >= 0 && retry_time < CONFIG_BOOT_RETRY_MIN)
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retry_time = CONFIG_BOOT_RETRY_MIN;
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}
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/***************************************************************************
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* reset command line timeout to retry_time seconds
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*/
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void bootretry_reset_cmd_timeout(void)
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{
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endtime = endtick(retry_time);
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}
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int bootretry_tstc_timeout(void)
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{
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while (!tstc()) { /* while no incoming data */
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if (retry_time >= 0 && get_ticks() > endtime)
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return -ETIMEDOUT;
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WATCHDOG_RESET();
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}
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return 0;
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}
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void bootretry_dont_retry(void)
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{
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retry_time = -1;
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}
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