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Diffstat (limited to 'Documentation/ptp/testptp.c')
-rw-r--r--Documentation/ptp/testptp.c87
1 files changed, 78 insertions, 9 deletions
diff --git a/Documentation/ptp/testptp.c b/Documentation/ptp/testptp.c
index 4aba0436da65..f1ac2dae999e 100644
--- a/Documentation/ptp/testptp.c
+++ b/Documentation/ptp/testptp.c
@@ -19,6 +19,7 @@
*/
#include <errno.h>
#include <fcntl.h>
+#include <inttypes.h>
#include <math.h>
#include <signal.h>
#include <stdio.h>
@@ -120,11 +121,19 @@ 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"
" -S set the system time from the ptp clock time\n"
- " -t val shift the ptp clock time by 'val' seconds\n",
+ " -t val shift the ptp clock time by 'val' seconds\n"
+ " -T val set the ptp clock time to 'val' seconds\n",
progname);
}
@@ -134,6 +143,7 @@ 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;
@@ -156,12 +166,15 @@ 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 seconds = 0;
int settime = 0;
int64_t t1, t2, tp;
@@ -169,7 +182,7 @@ 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:T:v"))) {
switch (c) {
case 'a':
oneshot = atoi(optarg);
@@ -199,6 +212,16 @@ 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;
@@ -214,6 +237,10 @@ int main(int argc, char *argv[])
case 't':
adjtime = atoi(optarg);
break;
+ case 'T':
+ settime = 3;
+ seconds = atoi(optarg);
+ break;
case 'h':
usage(progname);
return 0;
@@ -245,12 +272,14 @@ 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);
}
}
@@ -304,6 +333,16 @@ int main(int argc, char *argv[])
}
}
+ if (settime == 3) {
+ ts.tv_sec = seconds;
+ ts.tv_nsec = 0;
+ if (clock_settime(clkid, &ts)) {
+ perror("clock_settime");
+ } else {
+ puts("set time okay");
+ }
+ }
+
if (extts) {
memset(&extts_request, 0, sizeof(extts_request));
extts_request.index = index;
@@ -331,6 +370,24 @@ 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 +449,18 @@ 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)) {
@@ -428,14 +497,14 @@ int main(int argc, char *argv[])
interval = t2 - t1;
offset = (t2 + t1) / 2 - tp;
- printf("system time: %ld.%ld\n",
+ printf("system time: %" PRId64 ".%u\n",
(pct+2*i)->sec, (pct+2*i)->nsec);
- printf("phc time: %ld.%ld\n",
+ printf("phc time: %" PRId64 ".%u\n",
(pct+2*i+1)->sec, (pct+2*i+1)->nsec);
- printf("system time: %ld.%ld\n",
+ printf("system time: %" PRId64 ".%u\n",
(pct+2*i+2)->sec, (pct+2*i+2)->nsec);
- printf("system/phc clock time offset is %ld ns\n"
- "system clock time delay is %ld ns\n",
+ printf("system/phc clock time offset is %" PRId64 " ns\n"
+ "system clock time delay is %" PRId64 " ns\n",
offset, interval);
}