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author | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2014-06-25 10:39:58 +0200 |
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committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2014-06-25 10:39:58 +0200 |
commit | ed1d98d801dfb6384d0f2fff45ce1ebf884944ca (patch) | |
tree | 5a9487c67b75606d3a723b7acb9eda8da200c871 /common/bootretry.c | |
parent | 754466ac95e92ebf40e25c6af6f13ab9b4d7c87b (diff) | |
parent | ba9b42c81b0734d53edfbb1fe4a6ded7de78c5ab (diff) | |
download | u-boot-imx-ed1d98d801dfb6384d0f2fff45ce1ebf884944ca.zip u-boot-imx-ed1d98d801dfb6384d0f2fff45ce1ebf884944ca.tar.gz u-boot-imx-ed1d98d801dfb6384d0f2fff45ce1ebf884944ca.tar.bz2 |
Merge branch 'u-boot/master' into 'u-boot-arm/master'
Diffstat (limited to 'common/bootretry.c')
-rw-r--r-- | common/bootretry.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/common/bootretry.c b/common/bootretry.c new file mode 100644 index 0000000..2d82798 --- /dev/null +++ b/common/bootretry.c @@ -0,0 +1,59 @@ +/* + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <bootretry.h> +#include <cli.h> +#include <errno.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 = getenv("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; +} |