projects / thirdparty / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 0098e179 SG |
2 | /* |
| 3 | * (C) Copyright 2000 | |
| 4 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
| 0098e179 SG |
5 | */ |
| 6 | ||
| 7 | #include <common.h> | |
| 8 | #include <bootretry.h> | |
| 9 | #include <cli.h> | |
| 10 | #include <errno.h> | |
| 11 | #include <watchdog.h> | |
| 12 | ||
| 13 | #ifndef CONFIG_BOOT_RETRY_MIN | |
| 14 | #define CONFIG_BOOT_RETRY_MIN CONFIG_BOOT_RETRY_TIME | |
| 15 | #endif | |
| 16 | ||
| 17 | static uint64_t endtime; /* must be set, default is instant timeout */ | |
| 18 | static int retry_time = -1; /* -1 so can call readline before main_loop */ | |
| 19 | ||
| 20 | /*************************************************************************** | |
| 21 | * initialize command line timeout | |
| 22 | */ | |
| b26440f1 | 23 | void bootretry_init_cmd_timeout(void) |
| 0098e179 | 24 | { |
| 00caae6d | 25 | char *s = env_get("bootretry"); |
| 0098e179 SG |
26 | |
| 27 | if (s != NULL) | |
| 28 | retry_time = (int)simple_strtol(s, NULL, 10); | |
| 29 | else | |
| 30 | retry_time = CONFIG_BOOT_RETRY_TIME; | |
| 31 | ||
| 32 | if (retry_time >= 0 && retry_time < CONFIG_BOOT_RETRY_MIN) | |
| 33 | retry_time = CONFIG_BOOT_RETRY_MIN; | |
| 34 | } | |
| 35 | ||
| 36 | /*************************************************************************** | |
| 37 | * reset command line timeout to retry_time seconds | |
| 38 | */ | |
| b26440f1 | 39 | void bootretry_reset_cmd_timeout(void) |
| 0098e179 SG |
40 | { |
| 41 | endtime = endtick(retry_time); | |
| 42 | } | |
| 43 | ||
| 44 | int bootretry_tstc_timeout(void) | |
| 45 | { | |
| 46 | while (!tstc()) { /* while no incoming data */ | |
| 47 | if (retry_time >= 0 && get_ticks() > endtime) | |
| 48 | return -ETIMEDOUT; | |
| 49 | WATCHDOG_RESET(); | |
| 50 | } | |
| 51 | ||
| 52 | return 0; | |
| 53 | } | |
| 54 | ||
| 55 | void bootretry_dont_retry(void) | |
| 56 | { | |
| 57 | retry_time = -1; | |
| 58 | } |