phc2sys: add sk.o to phc2sys for sk_interface_phc
This patch adds support for sk_interface_phc to lookup the /dev/ptpX device using ethtool's get_ts_info ioctl -v2- * set ethdev to null initially * rebased on top of phc2sys changes -v3- * fixed typo regarding slash Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>master
parent
eb09fe01d7
commit
a0fc92957f
2
makefile
2
makefile
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@ -43,7 +43,7 @@ ptp4l: $(OBJ)
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pmc: pmc.o msg.o print.o raw.o sk.o tlv.o transport.o udp.o udp6.o uds.o util.o
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phc2sys: phc2sys.o
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phc2sys: phc2sys.o sk.o print.o
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hwstamp_ctl: hwstamp_ctl.o
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19
phc2sys.c
19
phc2sys.c
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@ -33,6 +33,7 @@
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#include <linux/ptp_clock.h>
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#include "missing.h"
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#include "sk.h"
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#define KP 0.7
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#define KI 0.3
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@ -226,6 +227,7 @@ static void usage(char *progname)
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" -d [device] master device, source of PPS events\n"
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" -h prints this message and exits\n"
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" -s [device] set the time from this PHC device\n"
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" -i [device] set the time from PHC connected to this eth device\n"
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" -P [val] set proportional constant to 'val'\n"
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" -I [val] set integration constant to 'val'\n"
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" -R [val] set PHC update rate to 'val' Hz\n"
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@ -237,7 +239,7 @@ static void usage(char *progname)
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int main(int argc, char *argv[])
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{
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double kp = KP, ki = KI;
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char *device = NULL, *progname;
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char *device = NULL, *progname, *ethdev = NULL;
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clockid_t src = CLOCK_INVALID, dst = CLOCK_REALTIME;
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uint64_t phc_ts;
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int64_t phc_offset;
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@ -246,7 +248,7 @@ int main(int argc, char *argv[])
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/* Process the command line arguments. */
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progname = strrchr(argv[0], '/');
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progname = progname ? 1+progname : argv[0];
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while (EOF != (c = getopt(argc, argv, "c:d:hs:P:I:R:N:"))) {
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while (EOF != (c = getopt(argc, argv, "c:d:hs:P:I:R:N:i:"))) {
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switch (c) {
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case 'c':
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dst = clock_open(optarg);
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@ -269,6 +271,9 @@ int main(int argc, char *argv[])
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case 'N':
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phc_readings = atoi(optarg);
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break;
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case 'i':
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ethdev = optarg;
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break;
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case 'h':
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usage(progname);
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return 0;
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@ -278,6 +283,16 @@ int main(int argc, char *argv[])
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}
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}
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if (src == CLOCK_INVALID && ethdev) {
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int phc_index = -1;
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char phc_device[16];
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if (sk_interface_phc(ethdev, &phc_index) || phc_index < 0) {
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fprintf(stderr, "can't autodiscover PHC device\n");
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return -1;
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}
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sprintf(phc_device, "/dev/ptp%d", phc_index);
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src = clock_open(phc_device);
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}
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if (!(device || src != CLOCK_INVALID) || dst == CLOCK_INVALID) {
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usage(progname);
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return -1;
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