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Commit 6eb54cbb authored by Richard Cochran's avatar Richard Cochran Committed by David S. Miller
Browse files

ptp: Extend the test program to check the external time stamp flags. 



Because each driver and hardware has different capabilities, the test
cannot provide a simple pass/fail result, but it can at least show what
combinations of flags are supported.

Signed-off-by: default avatarRichard Cochran <richardcochran@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ca12cf5a

tools/testing/selftests/ptp/testptp.c

+51 −2
Original line number Diff line number Diff line
@@ -44,6 +44,46 @@ static int clock_adjtime(clockid_t id, struct timex *tx) 
}

#endif



static void show_flag_test(int rq_index, unsigned int flags, int err)

{

	printf("PTP_EXTTS_REQUEST%c flags 0x%08x : (%d) %s\n",

	       rq_index ? '1' + rq_index : ' ',

	       flags, err, strerror(errno));

	/* sigh, uClibc ... */

	errno = 0;

}



static void do_flag_test(int fd, unsigned int index)

{

	struct ptp_extts_request extts_request;

	unsigned long request[2] = {

		PTP_EXTTS_REQUEST,

		PTP_EXTTS_REQUEST2,

	};

	unsigned int enable_flags[5] = {

		PTP_ENABLE_FEATURE,

		PTP_ENABLE_FEATURE | PTP_RISING_EDGE,

		PTP_ENABLE_FEATURE | PTP_FALLING_EDGE,

		PTP_ENABLE_FEATURE | PTP_RISING_EDGE | PTP_FALLING_EDGE,

		PTP_ENABLE_FEATURE | (PTP_EXTTS_VALID_FLAGS + 1),

	};

	int err, i, j;



	memset(&extts_request, 0, sizeof(extts_request));

	extts_request.index = index;



	for (i = 0; i < 2; i++) {

		for (j = 0; j < 5; j++) {

			extts_request.flags = enable_flags[j];

			err = ioctl(fd, request[i], &extts_request);

			show_flag_test(i, extts_request.flags, err);



			extts_request.flags = 0;

			err = ioctl(fd, request[i], &extts_request);

		}

	}

}



static clockid_t get_clockid(int fd)

{

#define CLOCKFD 3
@@ -96,7 +136,8 @@ static void usage(char *progname) 
		" -s         set the ptp clock time from the system time\n"

		" -S         set the system time from the ptp clock time\n"

		" -t val     shift the ptp clock time by 'val' seconds\n"

		" -T val     set the ptp clock time to 'val' seconds\n",

		" -T val     set the ptp clock time to 'val' seconds\n"

		" -z         test combinations of rising/falling external time stamp flags\n",

		progname);

}
@@ -122,6 +163,7 @@ int main(int argc, char *argv[]) 
	int adjtime = 0;

	int capabilities = 0;

	int extts = 0;

	int flagtest = 0;

	int gettime = 0;

	int index = 0;

	int list_pins = 0;
@@ -138,7 +180,7 @@ int main(int argc, char *argv[]) 


	progname = strrchr(argv[0], '/');

	progname = progname ? 1+progname : argv[0];

	while (EOF != (c = getopt(argc, argv, "cd:e:f:ghi:k:lL:p:P:sSt:T:v"))) {

	while (EOF != (c = getopt(argc, argv, "cd:e:f:ghi:k:lL:p:P:sSt:T:z"))) {

		switch (c) {

		case 'c':

			capabilities = 1;
@@ -191,6 +233,9 @@ int main(int argc, char *argv[]) 
			settime = 3;

			seconds = atoi(optarg);

			break;

		case 'z':

			flagtest = 1;

			break;

		case 'h':

			usage(progname);

			return 0;
@@ -322,6 +367,10 @@ int main(int argc, char *argv[]) 
		}

	}



	if (flagtest) {

		do_flag_test(fd, index);

	}



	if (list_pins) {

		int n_pins = 0;

		if (ioctl(fd, PTP_CLOCK_GETCAPS, &caps)) {