ptp: Allow selecting trigger/event index in testptp

Currently the trigger/event is hardcoded to 0, this patch adds
a new command line argument -i to select an arbitrary trigger/
event.

Signed-off-by: Stefan Sørensen <stefan.sorensen@spectralink.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 3 deletions

diff --git a/Documentation/ptp/testptp.c b/Documentation/ptp/testptp.c
index a74d0a84d329..4aba0436da65 100644
--- a/Documentation/ptp/testptp.c
+++ b/Documentation/ptp/testptp.c
@@ -117,6 +117,7 @@ static void usage(char *progname)
                 " -f val     adjust the ptp clock frequency by 'val' ppb\n"
                 " -g         get the ptp clock time\n"
                 " -h         prints this message\n"
+                " -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"
                 " -p val     enable output with a period of 'val' nanoseconds\n"
@@ -154,6 +155,7 @@ int main(int argc, char *argv[])
         int capabilities = 0;
         int extts = 0;
         int gettime = 0;
+        int index = 0;
         int oneshot = 0;
         int pct_offset = 0;
         int n_samples = 0;
@@ -167,7 +169,7 @@ 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:ghk:p:P:sSt:v"))) {
+        while (EOF != (c = getopt(argc, argv, "a:A:cd:e:f:ghi:k:p:P:sSt:v"))) {
                 switch (c) {
                 case 'a':
                         oneshot = atoi(optarg);
@@ -190,6 +192,9 @@ int main(int argc, char *argv[])
                 case 'g':
                         gettime = 1;
                         break;
+                case 'i':
+                        index = atoi(optarg);
+                        break;
                 case 'k':
                         pct_offset = 1;
                         n_samples = atoi(optarg);
@@ -301,7 +306,7 @@ int main(int argc, char *argv[])
 
         if (extts) {
                 memset(&extts_request, 0, sizeof(extts_request));
-                extts_request.index = 0;
+                extts_request.index = index;
                 extts_request.flags = PTP_ENABLE_FEATURE;
                 if (ioctl(fd, PTP_EXTTS_REQUEST, &extts_request)) {
                         perror("PTP_EXTTS_REQUEST");
@@ -375,7 +380,7 @@ int main(int argc, char *argv[])
                         return -1;
                 }
                 memset(&perout_request, 0, sizeof(perout_request));
-                perout_request.index = 0;
+                perout_request.index = index;
                 perout_request.start.sec = ts.tv_sec + 2;
                 perout_request.start.nsec = 0;
                 perout_request.period.sec = 0;