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ptp4l: use sk_get_ts_info to check timestamping mode 

this patch uses the new sk_get_ts_info data to check whether the selected
timestamping mode is supported on all ports. This check is not run if the port
data isn't valid, so it will only fail if the IOCTL is supported. This allows
for support of old kernels that do not support the IOCTL to still work as expected.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
master
Jacob Keller 2012-11-13 13:35:10 -08:00 committed by Richard Cochran
parent 004b62d22b
commit a1b492aba9
1 changed files with 26 additions and 1 deletions
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27
ptp4l.c
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@ -22,6 +22,7 @@
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <linux/net_tstamp.h>
#include "clock.h"
#include "config.h"
@ -135,7 +136,7 @@ int main(int argc, char *argv[])
enum timestamp_type *timestamping = &cfg_settings.timestamping;
struct clock *clock;
struct defaultDS *ds = &cfg_settings.dds;
int phc_index = -1;
int phc_index = -1, required_modes = 0;
if (SIG_ERR == signal(SIGINT, handle_int_quit_term)) {
fprintf(stderr, "cannot handle SIGINT\n");
@ -253,6 +254,30 @@ int main(int argc, char *argv[])
return -1;
}
if (*timestamping == TS_SOFTWARE)
required_modes |= SOF_TIMESTAMPING_TX_SOFTWARE |
SOF_TIMESTAMPING_RX_SOFTWARE |
SOF_TIMESTAMPING_SOFTWARE;
else if (*timestamping == TS_LEGACY_HW)
required_modes |= SOF_TIMESTAMPING_TX_HARDWARE |
SOF_TIMESTAMPING_RX_HARDWARE |
SOF_TIMESTAMPING_SYS_HARDWARE;
else if (*timestamping == TS_HARDWARE)
required_modes |= SOF_TIMESTAMPING_TX_HARDWARE |
SOF_TIMESTAMPING_RX_HARDWARE |
SOF_TIMESTAMPING_RAW_HARDWARE;
/* check whether timestamping mode is supported. */
for (i = 0; i < cfg_settings.nports; i++) {
if (iface[i].ts_info.valid &&
!(iface[0].ts_info.so_timestamping & required_modes)) {
fprintf(stderr, "interface '%s' does not support "
"requested timestamping mode.\n",
iface[i].name);
return -1;
}
}
/* determine PHC Clock index */
if (ds->free_running) {
phc_index = -1;