diff options
Diffstat (limited to 'tools/testing/selftests/ptp/testptp.c')
| -rw-r--r-- | tools/testing/selftests/ptp/testptp.c | 51 |
1 files changed, 43 insertions, 8 deletions
diff --git a/tools/testing/selftests/ptp/testptp.c b/tools/testing/selftests/ptp/testptp.c index da7a9dda9490..f7911aaeb007 100644 --- a/tools/testing/selftests/ptp/testptp.c +++ b/tools/testing/selftests/ptp/testptp.c @@ -35,6 +35,8 @@ #define CLOCK_INVALID -1 #endif +#define NSEC_PER_SEC 1000000000LL + /* clock_adjtime is not available in GLIBC < 2.14 */ #if !__GLIBC_PREREQ(2, 14) #include <sys/syscall.h> @@ -132,6 +134,8 @@ static void usage(char *progname) " 1 - external time stamp\n" " 2 - periodic output\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" " -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" @@ -169,7 +173,6 @@ int main(int argc, char *argv[]) int list_pins = 0; int pct_offset = 0; int n_samples = 0; - int perout = -1; int pin_index = -1, pin_func; int pps = -1; int seconds = 0; @@ -177,10 +180,13 @@ int main(int argc, char *argv[]) int64_t t1, t2, tp; int64_t interval, offset; + int64_t perout_phase = -1; + int64_t pulsewidth = -1; + int64_t perout = -1; 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:z"))) { + while (EOF != (c = getopt(argc, argv, "cd:e:f:ghH:i:k:lL:p:P:sSt:T:w:z"))) { switch (c) { case 'c': capabilities = 1; @@ -197,6 +203,9 @@ int main(int argc, char *argv[]) case 'g': gettime = 1; break; + case 'H': + perout_phase = atoll(optarg); + break; case 'i': index = atoi(optarg); break; @@ -215,7 +224,7 @@ int main(int argc, char *argv[]) } break; case 'p': - perout = atoi(optarg); + perout = atoll(optarg); break; case 'P': pps = atoi(optarg); @@ -233,6 +242,9 @@ int main(int argc, char *argv[]) settime = 3; seconds = atoi(optarg); break; + case 'w': + pulsewidth = atoi(optarg); + break; case 'z': flagtest = 1; break; @@ -391,6 +403,16 @@ int main(int argc, char *argv[]) } } + if (pulsewidth >= 0 && perout < 0) { + puts("-w can only be specified together with -p"); + return -1; + } + + if (perout_phase >= 0 && perout < 0) { + puts("-H can only be specified together with -p"); + return -1; + } + if (perout >= 0) { if (clock_gettime(clkid, &ts)) { perror("clock_gettime"); @@ -398,11 +420,24 @@ int main(int argc, char *argv[]) } memset(&perout_request, 0, sizeof(perout_request)); perout_request.index = index; - perout_request.start.sec = ts.tv_sec + 2; - perout_request.start.nsec = 0; - perout_request.period.sec = 0; - perout_request.period.nsec = perout; - if (ioctl(fd, PTP_PEROUT_REQUEST, &perout_request)) { + perout_request.period.sec = perout / NSEC_PER_SEC; + perout_request.period.nsec = perout % NSEC_PER_SEC; + perout_request.flags = 0; + if (pulsewidth >= 0) { + perout_request.flags |= PTP_PEROUT_DUTY_CYCLE; + perout_request.on.sec = pulsewidth / NSEC_PER_SEC; + perout_request.on.nsec = pulsewidth % NSEC_PER_SEC; + } + if (perout_phase >= 0) { + perout_request.flags |= PTP_PEROUT_PHASE; + perout_request.phase.sec = perout_phase / NSEC_PER_SEC; + perout_request.phase.nsec = perout_phase % NSEC_PER_SEC; + } else { + perout_request.start.sec = ts.tv_sec + 2; + perout_request.start.nsec = 0; + } + + if (ioctl(fd, PTP_PEROUT_REQUEST2, &perout_request)) { perror("PTP_PEROUT_REQUEST"); } else { puts("periodic output request okay"); |