Commit ac7e8d3e authored by Shuah Khan's avatar Shuah Khan
Browse files

selftests/watchdog: add support for WDIOC_GETSTATUS 



Add support for calling WDIOC_GETSTATUS and printing supported
features and status.

Signed-off-by: default avatarShuah Khan <skhan@linuxfoundation.org>
parent 66d1dce0

tools/testing/selftests/watchdog/watchdog-test.c

+41 −3
Original line number Diff line number Diff line
@@ -6,8 +6,6 @@ 
* - Could be tested against softdog driver on systems that

*   don't have watchdog hardware.

* - TODO:

* - WDIOC_GETSTATUS is called when WDIOC_GETBOOTSTATUS is called.

* - Enhance the logic to call WDIOC_GETSTATUS and test return values.

* - Enhance coverage of ioctl return values - flags and status.

* - Enhance test to add coverage for WDIOC_GETTEMP.

*
@@ -30,13 +28,14 @@ 


int fd;

const char v = 'V';

static const char sopts[] = "bdehp:t:Tn:NLf:i";

static const char sopts[] = "bdehp:st:Tn:NLf:i";

static const struct option lopts[] = {

	{"bootstatus",          no_argument, NULL, 'b'},

	{"disable",             no_argument, NULL, 'd'},

	{"enable",              no_argument, NULL, 'e'},

	{"help",                no_argument, NULL, 'h'},

	{"pingrate",      required_argument, NULL, 'p'},

	{"status",              no_argument, NULL, 's'},

	{"timeout",       required_argument, NULL, 't'},

	{"gettimeout",          no_argument, NULL, 'T'},

	{"pretimeout",    required_argument, NULL, 'n'},
@@ -85,6 +84,7 @@ static void usage(char *progname) 
	printf(" -f, --file\t\tOpen watchdog device file\n");

	printf("\t\t\tDefault is /dev/watchdog\n");

	printf(" -i, --info\t\tShow watchdog_info\n");

	printf(" -s, --status\t\tGet status & supported features\n");

	printf(" -b, --bootstatus\tGet last boot status (Watchdog/POR)\n");

	printf(" -d, --disable\t\tTurn off the watchdog timer\n");

	printf(" -e, --enable\t\tTurn on the watchdog timer\n");
@@ -107,6 +107,35 @@ struct wdiof_status { 
	const char *status_str;

};



#define WDIOF_NUM_STATUS 8



static const struct wdiof_status wdiof_status[WDIOF_NUM_STATUS] = {

	{WDIOF_SETTIMEOUT,  "Set timeout (in seconds)"},

	{WDIOF_MAGICCLOSE,  "Supports magic close char"},

	{WDIOF_PRETIMEOUT,  "Pretimeout (in seconds), get/set"},

	{WDIOF_ALARMONLY,  "Watchdog triggers a management or other external alarm not a reboot"},

	{WDIOF_KEEPALIVEPING,  "Keep alive ping reply"},

	{WDIOS_DISABLECARD,  "Turn off the watchdog timer"},

	{WDIOS_ENABLECARD,  "Turn on the watchdog timer"},

	{WDIOS_TEMPPANIC,  "Kernel panic on temperature trip"},

};



static void print_status(int flags)

{

	int wdiof = 0;



	if (flags == WDIOS_UNKNOWN) {

		printf("Unknown status error from WDIOC_GETSTATUS\n");

		return;

	}



	for (wdiof = 0; wdiof < WDIOF_NUM_STATUS; wdiof++) {

		if (flags & wdiof_status[wdiof].flag)

			printf("Support/Status: %s\n",

				wdiof_status[wdiof].status_str);

	}

}



#define WDIOF_NUM_BOOTSTATUS 7



static const struct wdiof_status wdiof_bootstatus[WDIOF_NUM_BOOTSTATUS] = {
@@ -219,6 +248,15 @@ int main(int argc, char *argv[]) 
				ping_rate = DEFAULT_PING_RATE;

			printf("Watchdog ping rate set to %u seconds.\n", ping_rate);

			break;

		case 's':

			flags = 0;

			oneshot = 1;

			ret = ioctl(fd, WDIOC_GETSTATUS, &flags);

			if (!ret)

				print_status(flags);

			else

				printf("WDIOC_GETSTATUS error '%s'\n", strerror(errno));

			break;

		case 't':

			flags = strtoul(optarg, NULL, 0);

			ret = ioctl(fd, WDIOC_SETTIMEOUT, &flags);