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Diffstat (limited to 'tools/testing/selftests/ptp/testptp.c')
-rw-r--r--tools/testing/selftests/ptp/testptp.c29
1 files changed, 24 insertions, 5 deletions
diff --git a/tools/testing/selftests/ptp/testptp.c b/tools/testing/selftests/ptp/testptp.c
index cfa9562f3cd8..e9438a1862ad 100644
--- a/tools/testing/selftests/ptp/testptp.c
+++ b/tools/testing/selftests/ptp/testptp.c
@@ -110,7 +110,7 @@ static long ppb_to_scaled_ppm(int ppb)
static int64_t pctns(struct ptp_clock_time *t)
{
- return t->sec * 1000000000LL + t->nsec;
+ return t->sec * NSEC_PER_SEC + t->nsec;
}
static void usage(char *progname)
@@ -134,6 +134,7 @@ static void usage(char *progname)
" 1 - external time stamp\n"
" 2 - periodic output\n"
" -n val shift the ptp clock time by 'val' nanoseconds\n"
+ " -o val phase offset (in nanoseconds) to be provided to the PHC servo\n"
" -p val enable output with a period of 'val' nanoseconds\n"
" -H val set output phase to 'val' nanoseconds (requires -p)\n"
" -w val set output pulse width to 'val' nanoseconds (requires -p)\n"
@@ -167,6 +168,7 @@ int main(int argc, char *argv[])
int adjfreq = 0x7fffffff;
int adjtime = 0;
int adjns = 0;
+ int adjphase = 0;
int capabilities = 0;
int extts = 0;
int flagtest = 0;
@@ -188,7 +190,7 @@ 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:ghH:i:k:lL:n:p:P:sSt:T:w:z"))) {
+ while (EOF != (c = getopt(argc, argv, "cd:e:f:ghH:i:k:lL:n:o:p:P:sSt:T:w:z"))) {
switch (c) {
case 'c':
capabilities = 1;
@@ -228,6 +230,9 @@ int main(int argc, char *argv[])
case 'n':
adjns = atoi(optarg);
break;
+ case 'o':
+ adjphase = atoi(optarg);
+ break;
case 'p':
perout = atoll(optarg);
break;
@@ -287,7 +292,8 @@ int main(int argc, char *argv[])
" %d pulse per second\n"
" %d programmable pins\n"
" %d cross timestamping\n"
- " %d adjust_phase\n",
+ " %d adjust_phase\n"
+ " %d maximum phase adjustment (ns)\n",
caps.max_adj,
caps.n_alarm,
caps.n_ext_ts,
@@ -295,7 +301,8 @@ int main(int argc, char *argv[])
caps.pps,
caps.n_pins,
caps.cross_timestamping,
- caps.adjust_phase);
+ caps.adjust_phase,
+ caps.max_phase_adj);
}
}
@@ -317,7 +324,7 @@ int main(int argc, char *argv[])
tx.time.tv_usec = adjns;
while (tx.time.tv_usec < 0) {
tx.time.tv_sec -= 1;
- tx.time.tv_usec += 1000000000;
+ tx.time.tv_usec += NSEC_PER_SEC;
}
if (clock_adjtime(clkid, &tx) < 0) {
@@ -327,6 +334,18 @@ int main(int argc, char *argv[])
}
}
+ if (adjphase) {
+ memset(&tx, 0, sizeof(tx));
+ tx.modes = ADJ_OFFSET | ADJ_NANO;
+ tx.offset = adjphase;
+
+ if (clock_adjtime(clkid, &tx) < 0) {
+ perror("clock_adjtime");
+ } else {
+ puts("phase adjustment okay");
+ }
+ }
+
if (gettime) {
if (clock_gettime(clkid, &ts)) {
perror("clock_gettime");