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author | Shuah Khan <shuahkh@osg.samsung.com> | 2016-09-13 13:03:35 -0600 |
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committer | Shuah Khan <shuahkh@osg.samsung.com> | 2016-09-20 09:58:34 -0600 |
commit | 02a35aad8a3e0b2bde1986053cefc2fcd63aee5d (patch) | |
tree | a06f839bc7e20151e1efef5765c7db5d1000e8e7 /tools | |
parent | b6ebbac51bedf9e98e837688bc838f400196da5e (diff) | |
download | op-kernel-dev-02a35aad8a3e0b2bde1986053cefc2fcd63aee5d.zip op-kernel-dev-02a35aad8a3e0b2bde1986053cefc2fcd63aee5d.tar.gz |
selftests: move watchdog tests from Documentation/watchdog
Remove watchdog-test from Makefile to move the test to selftests.
Add Makefile and .gitignore for watchdog-test. watchdog-test will
not be run as part of selftests suite and will not be included in
install targets. It can be built separately for now.
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Diffstat (limited to 'tools')
-rw-r--r-- | tools/testing/selftests/watchdog/.gitignore | 1 | ||||
-rw-r--r-- | tools/testing/selftests/watchdog/Makefile | 8 | ||||
-rw-r--r-- | tools/testing/selftests/watchdog/watchdog-test.c | 105 |
3 files changed, 114 insertions, 0 deletions
diff --git a/tools/testing/selftests/watchdog/.gitignore b/tools/testing/selftests/watchdog/.gitignore new file mode 100644 index 0000000..5aac515 --- /dev/null +++ b/tools/testing/selftests/watchdog/.gitignore @@ -0,0 +1 @@ +watchdog-test diff --git a/tools/testing/selftests/watchdog/Makefile b/tools/testing/selftests/watchdog/Makefile new file mode 100644 index 0000000..f863c66 --- /dev/null +++ b/tools/testing/selftests/watchdog/Makefile @@ -0,0 +1,8 @@ +TEST_PROGS := watchdog-test + +all: $(TEST_PROGS) + +include ../lib.mk + +clean: + rm -fr $(TEST_PROGS) diff --git a/tools/testing/selftests/watchdog/watchdog-test.c b/tools/testing/selftests/watchdog/watchdog-test.c new file mode 100644 index 0000000..6983d05 --- /dev/null +++ b/tools/testing/selftests/watchdog/watchdog-test.c @@ -0,0 +1,105 @@ +/* + * Watchdog Driver Test Program + */ + +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <fcntl.h> +#include <signal.h> +#include <sys/ioctl.h> +#include <linux/types.h> +#include <linux/watchdog.h> + +int fd; +const char v = 'V'; + +/* + * This function simply sends an IOCTL to the driver, which in turn ticks + * the PC Watchdog card to reset its internal timer so it doesn't trigger + * a computer reset. + */ +static void keep_alive(void) +{ + int dummy; + + printf("."); + ioctl(fd, WDIOC_KEEPALIVE, &dummy); +} + +/* + * The main program. Run the program with "-d" to disable the card, + * or "-e" to enable the card. + */ + +static void term(int sig) +{ + int ret = write(fd, &v, 1); + + close(fd); + if (ret < 0) + printf("\nStopping watchdog ticks failed (%d)...\n", errno); + else + printf("\nStopping watchdog ticks...\n"); + exit(0); +} + +int main(int argc, char *argv[]) +{ + int flags; + unsigned int ping_rate = 1; + int ret; + + setbuf(stdout, NULL); + + fd = open("/dev/watchdog", O_WRONLY); + + if (fd == -1) { + printf("Watchdog device not enabled.\n"); + exit(-1); + } + + if (argc > 1) { + if (!strncasecmp(argv[1], "-d", 2)) { + flags = WDIOS_DISABLECARD; + ioctl(fd, WDIOC_SETOPTIONS, &flags); + printf("Watchdog card disabled.\n"); + goto end; + } else if (!strncasecmp(argv[1], "-e", 2)) { + flags = WDIOS_ENABLECARD; + ioctl(fd, WDIOC_SETOPTIONS, &flags); + printf("Watchdog card enabled.\n"); + goto end; + } else if (!strncasecmp(argv[1], "-t", 2) && argv[2]) { + flags = atoi(argv[2]); + ioctl(fd, WDIOC_SETTIMEOUT, &flags); + printf("Watchdog timeout set to %u seconds.\n", flags); + goto end; + } else if (!strncasecmp(argv[1], "-p", 2) && argv[2]) { + ping_rate = strtoul(argv[2], NULL, 0); + printf("Watchdog ping rate set to %u seconds.\n", ping_rate); + } else { + printf("-d to disable, -e to enable, -t <n> to set " \ + "the timeout,\n-p <n> to set the ping rate, and \n"); + printf("run by itself to tick the card.\n"); + goto end; + } + } + + printf("Watchdog Ticking Away!\n"); + + signal(SIGINT, term); + + while(1) { + keep_alive(); + sleep(ping_rate); + } +end: + ret = write(fd, &v, 1); + if (ret < 0) + printf("Stopping watchdog ticks failed (%d)...\n", errno); + close(fd); + return 0; +} |