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Commit 888a3687 authored by Richard Cochran's avatar Richard Cochran Committed by David S. Miller
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ptp: add the pin GET/SETFUNC ioctls to the testptp program. 



This patch adds a option to the test program that lists the
programmable pins on a PTP Hardware Clock device, assuming there
are any such pins. A second option lets the user reprogram the
auxiliary function of a single pin.

Signed-off-by: default avatarRichard Cochran <richardcochran@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6092315d

Documentation/ptp/testptp.c

+55 −3
Original line number Diff line number Diff line
@@ -120,6 +120,13 @@ static void usage(char *progname) 
		" -i val     index for event/trigger\n"

		" -k val     measure the time offset between system and phc clock\n"

		"            for 'val' times (Maximum 25)\n"

		" -l         list the current pin configuration\n"

		" -L pin,val configure pin index 'pin' with function 'val'\n"

		"            the channel index is taken from the '-i' option\n"

		"            'val' specifies the auxiliary function:\n"

		"            0 - none\n"

		"            1 - external time stamp\n"

		"            2 - periodic output\n"

		" -p val     enable output with a period of 'val' nanoseconds\n"

		" -P val     enable or disable (val=1|0) the system clock PPS\n"

		" -s         set the ptp clock time from the system time\n"
@@ -134,6 +141,7 @@ int main(int argc, char *argv[]) 
	struct ptp_extts_event event;

	struct ptp_extts_request extts_request;

	struct ptp_perout_request perout_request;

	struct ptp_pin_desc desc;

	struct timespec ts;

	struct timex tx;
@@ -156,11 +164,13 @@ int main(int argc, char *argv[]) 
	int extts = 0;

	int gettime = 0;

	int index = 0;

	int list_pins = 0;

	int oneshot = 0;

	int pct_offset = 0;

	int n_samples = 0;

	int periodic = 0;

	int perout = -1;

	int pin_index = -1, pin_func;

	int pps = -1;

	int settime = 0;
@@ -169,7 +179,7 @@ int main(int argc, char *argv[]) 


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

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

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

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

		switch (c) {

		case 'a':

			oneshot = atoi(optarg);
@@ -199,6 +209,16 @@ int main(int argc, char *argv[]) 
			pct_offset = 1;

			n_samples = atoi(optarg);

			break;

		case 'l':

			list_pins = 1;

			break;

		case 'L':

			cnt = sscanf(optarg, "%d,%d", &pin_index, &pin_func);

			if (cnt != 2) {

				usage(progname);

				return -1;

			}

			break;

		case 'p':

			perout = atoi(optarg);

			break;
@@ -245,12 +265,14 @@ int main(int argc, char *argv[]) 
			       "  %d programmable alarms\n"

			       "  %d external time stamp channels\n"

			       "  %d programmable periodic signals\n"

			       "  %d pulse per second\n",

			       "  %d pulse per second\n"

			       "  %d programmable pins\n",

			       caps.max_adj,

			       caps.n_alarm,

			       caps.n_ext_ts,

			       caps.n_per_out,

			       caps.pps);

			       caps.pps,

			       caps.n_pins);

		}

	}
@@ -331,6 +353,24 @@ int main(int argc, char *argv[]) 
		}

	}



	if (list_pins) {

		int n_pins = 0;

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

			perror("PTP_CLOCK_GETCAPS");

		} else {

			n_pins = caps.n_pins;

		}

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

			desc.index = i;

			if (ioctl(fd, PTP_PIN_GETFUNC, &desc)) {

				perror("PTP_PIN_GETFUNC");

				break;

			}

			printf("name %s index %u func %u chan %u\n",

			       desc.name, desc.index, desc.func, desc.chan);

		}

	}



	if (oneshot) {

		install_handler(SIGALRM, handle_alarm);

		/* Create a timer. */
@@ -392,6 +432,18 @@ int main(int argc, char *argv[]) 
		}

	}



	if (pin_index >= 0) {

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

		desc.index = pin_index;

		desc.func = pin_func;

		desc.chan = index;

		if (ioctl(fd, PTP_PIN_SETFUNC, &desc)) {

			perror("PTP_PIN_SETFUNC");

		} else {

			puts("set pin function okay");

		}

	}



	if (pps != -1) {

		int enable = pps ? 1 : 0;

		if (ioctl(fd, PTP_ENABLE_PPS, enable)) {