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author | Sascha Hauer <s.hauer@pengutronix.de> | 2012-07-02 10:59:45 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2012-07-02 10:59:45 +0200 |
commit | 7f9fc3dbd03a8c6211bc92945330e634138db29c (patch) | |
tree | 84b36e9973adb8666aae81e65c8291a8ed48561b /commands | |
parent | f22d4e27786c8a7f58ef7167f38c3c5dd313d290 (diff) | |
parent | 7d6d7c42dacf5ee9db9f25569ff544ae6603ece1 (diff) | |
download | barebox-7f9fc3dbd03a8c6211bc92945330e634138db29c.tar.gz barebox-7f9fc3dbd03a8c6211bc92945330e634138db29c.tar.xz |
Merge branch 'for-next/watchdog'
Diffstat (limited to 'commands')
-rw-r--r-- | commands/Kconfig | 19 | ||||
-rw-r--r-- | commands/Makefile | 1 | ||||
-rw-r--r-- | commands/wd.c | 68 |
3 files changed, 88 insertions, 0 deletions
diff --git a/commands/Kconfig b/commands/Kconfig index 41ebf6c587..43a4a3ba9c 100644 --- a/commands/Kconfig +++ b/commands/Kconfig @@ -570,6 +570,25 @@ config CMD_USB help The usb command allows to rescan for USB devices. +menuconfig CMD_WD + bool + depends on WATCHDOG + prompt "wd command " + help + The 'wd' command which allows to start, stop and trigger the onboard + watchdog. + +if CMD_WD + +config CMD_WD_DEFAULT_TIMOUT + int + prompt "default timeout" + help + Define the default timeout value in [seconds] if the first call of + 'wd' is done without a timeout value (which means the watchdog gets + enabled and re-triggered with the default timeout value). +endif + endmenu endif diff --git a/commands/Makefile b/commands/Makefile index 0710bb46a4..7aba4e7176 100644 --- a/commands/Makefile +++ b/commands/Makefile @@ -58,6 +58,7 @@ obj-$(CONFIG_CMD_MENU) += menu.o obj-$(CONFIG_CMD_PASSWD) += passwd.o obj-$(CONFIG_CMD_LOGIN) += login.o obj-$(CONFIG_CMD_LED) += led.o +obj-$(CONFIG_CMD_WD) += wd.o obj-$(CONFIG_CMD_LED_TRIGGER) += trigger.o obj-$(CONFIG_CMD_USB) += usb.o obj-$(CONFIG_CMD_TIME) += time.o diff --git a/commands/wd.c b/commands/wd.c new file mode 100644 index 0000000000..080bab9230 --- /dev/null +++ b/commands/wd.c @@ -0,0 +1,68 @@ +/* + * (c) 2012 Juergen Beisert <kernel@pengutronix.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <common.h> +#include <command.h> +#include <errno.h> +#include <linux/ctype.h> +#include <watchdog.h> + +/* default timeout in [sec] */ +static unsigned timeout = CONFIG_CMD_WD_DEFAULT_TIMOUT; + +static int do_wd(int argc, char *argv[]) +{ + int rc; + + if (argc > 1) { + if (isdigit(*argv[1])) { + timeout = simple_strtoul(argv[1], NULL, 0); + } else { + printf("numerical parameter expected\n"); + return 1; + } + } + + rc = watchdog_set_timeout(timeout); + if (rc < 0) { + switch (rc) { + case -EINVAL: + printf("Timeout value out of range\n"); + break; + case -ENOSYS: + printf("Watchdog cannot be disabled\n"); + break; + default: + printf("Watchdog fails: '%s'\n", strerror(-rc)); + break; + } + + return 1; + } + + return 0; +} + +BAREBOX_CMD_HELP_START(wd) +BAREBOX_CMD_HELP_USAGE("wd [<time>]\n") +BAREBOX_CMD_HELP_SHORT("enable the watchdog to bark in <time> seconds. " + "When <time> is 0, the watchdog gets disabled,\n" + "without a parameter the watchdog will be re-triggered\n") +BAREBOX_CMD_HELP_END + +BAREBOX_CMD_START(wd) + .cmd = do_wd, + .usage = "enable/disable/trigger the watchdog", + BAREBOX_CMD_HELP(cmd_wd_help) +BAREBOX_CMD_END |