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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * (C) Copyright 2000
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- */
- #include <common.h>
- #include <bootretry.h>
- #include <cli.h>
- #include <env.h>
- #include <errno.h>
- #include <time.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;
- }
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