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Commit a4864a33 authored by George G. Davis's avatar George G. Davis Committed by Shuah Khan
Browse files

selftests: watchdog: Add optional file argument 



Some systems have multiple watchdog devices where the first device
registered is assigned to the /dev/watchdog device file. In order
to test other watchdog devices, add an optional file argument for
selecting non-default watchdog devices for testing.

Tested-by: default avatarEugeniu Rosca <erosca@de.adit-jv.com>
Signed-off-by: default avatarGeorge G. Davis <george_davis@mentor.com>
Signed-off-by: default avatarShuah Khan <skhan@linuxfoundation.org>
parent 88282297

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

+17 −3
Original line number Diff line number Diff line
@@ -19,7 +19,7 @@ 


int fd;

const char v = 'V';

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

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

static const struct option lopts[] = {

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

	{"disable",             no_argument, NULL, 'd'},
@@ -31,6 +31,7 @@ static const struct option lopts[] = { 
	{"pretimeout",    required_argument, NULL, 'n'},

	{"getpretimeout",       no_argument, NULL, 'N'},

	{"gettimeleft",		no_argument, NULL, 'L'},

	{"file",          required_argument, NULL, 'f'},

	{NULL,                  no_argument, NULL, 0x0}

};
@@ -69,6 +70,8 @@ static void term(int sig) 
static void usage(char *progname)

{

	printf("Usage: %s [options]\n", progname);

	printf(" -f, --file          Open watchdog device file\n");

	printf("                     Default is /dev/watchdog\n");

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

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

	printf(" -e, --enable        Turn on the watchdog timer\n");
@@ -92,14 +95,20 @@ int main(int argc, char *argv[]) 
	int ret;

	int c;

	int oneshot = 0;

	char *file = "/dev/watchdog";



	setbuf(stdout, NULL);



	fd = open("/dev/watchdog", O_WRONLY);

	while ((c = getopt_long(argc, argv, sopts, lopts, NULL)) != -1) {

		if (c == 'f')

			file = optarg;

	}



	fd = open(file, O_WRONLY);



	if (fd == -1) {

		if (errno == ENOENT)

			printf("Watchdog device not enabled.\n");

			printf("Watchdog device (%s) not found.\n", file);

		else if (errno == EACCES)

			printf("Run watchdog as root.\n");

		else
@@ -108,6 +117,8 @@ int main(int argc, char *argv[]) 
		exit(-1);

	}



	optind = 0;



	while ((c = getopt_long(argc, argv, sopts, lopts, NULL)) != -1) {

		switch (c) {

		case 'b':
@@ -190,6 +201,9 @@ int main(int argc, char *argv[]) 
			else

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

			break;

		case 'f':

			/* Handled above */

			break;



		default:

			usage(argv[0]);