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| author |   Eugeniu Rosca <erosca@de.adit-jv.com> | 2017-07-01 14:57:30 +0200 |
|---|---|---|
| committer |   Shuah Khan <shuahkh@osg.samsung.com> | 2017-07-24 12:37:07 -0600 |
| commit | a3d6d79f11673427ba2cfa09e358f0eccd06fbee (patch) | |
| tree | 553394be45dae78fbe0d96f4577779c6fac14046 /certs | |
| parent | selftests: watchdog: avoid keepalive flood (diff) | |
| download | linux-dev-a3d6d79f11673427ba2cfa09e358f0eccd06fbee.tar.xz linux-dev-a3d6d79f11673427ba2cfa09e358f0eccd06fbee.zip | |
selftests: watchdog: get boot reason via WDIOC_GETBOOTSTATUS
Some watchdog drivers implement WDIOF_CARDRESET feature. As example,
see commit b6ef36d2c1e3 ("watchdog: qcom: Report reboot reason").
This option allows reporting to userspace the cause of the last boot
(POR/watchdog reset), being helpful in e.g. automated test-cases.
Add support for WDIOC_GETBOOTSTATUS in the test code, to be able to:
- check if watchdog drivers properly implement WDIOF_CARDRESET.
- check the last boot status, if WDIOF_CARDRESET is implemented.
Make the `-b, --bootstatus` option one-shot. That means, skip the
keepalive mechanism if `-b` is provided on the command line, as we
are only interested in the boot status information.
Tested on Rcar-H3 Salvator-X board:
********************** Cold boot finished
salvator-x:/home/root# ./watchdog-test -h
Usage: ./watchdog-test [options]
-b, --bootstatus Get last boot status (Watchdog/POR)
-d, --disable Turn off the watchdog timer
-e, --enable Turn on the watchdog timer
-h, --help Print the help message
-p, --pingrate=P Set ping rate to P seconds (default 1)
-t, --timeout=T Set timeout to T seconds
Parameters are parsed left-to-right in real-time.
Example: ./watchdog-test -d -t 10 -p 5 -e
salvator-x:/home/root#
salvator-x:/home/root# ./watchdog-test -b
Last boot is caused by: Power-On-Reset.
salvator-x:/home/root#
salvator-x:/home/root# ./watchdog-test -d -t 1 -p 2 -e
Watchdog card disabled.
Watchdog timeout set to 1 seconds.
Watchdog ping rate set to 2 seconds.
Watchdog card enabled.
Watchdog Ticking Away!
********************** Reboot due to watchdog trigger finished
salvator-x:/home/root# ./watchdog-test -b
Last boot is caused by: Watchdog.
salvator-x:/home/root#
salvator-x:/home/root# reboot
********************** Reboot due to user action finished
salvator-x:/home/root# ./watchdog-test -b
Last boot is caused by: Power-On-Reset.
salvator-x:/home/root#
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Diffstat (limited to 'certs')
0 files changed, 0 insertions, 0 deletions