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delaymsr.c
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delaymsr.c
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#define DELAY_MSR_MODULE
#include "delaymsr.h"
void initDM(struct gPTPd* gPTPd)
{
gPTPd->dm.state = DM_STATE_INIT;
gPTPd->dm.delayReqInterval = GPTP_PDELAY_REQ_INTERVAL;
gPTPd->dm.delayReqTimeOut = GPTP_PDELAY_REQ_TIMEOUT;
}
void unintDM(struct gPTPd* gPTPd)
{
}
void dmHandleEvent(struct gPTPd* gPTPd, int evtId)
{
struct timespec diff[3];
gPTP_logMsg(GPTP_LOG_INFO, "gPTP dmHandleEvent st: %d evt: 0x%x \n", gPTPd->dm.state, evtId);
switch(gPTPd->dm.state) {
case DM_STATE_INIT:
switch (evtId) {
case GPTP_EVT_STATE_ENTRY:
break;
case GPTP_EVT_DM_ENABLE:
dmHandleStateChange(gPTPd, DM_STATE_IDLE);
break;
case GPTP_EVT_STATE_EXIT:
break;
default:
break;
}
break;
case DM_STATE_IDLE:
switch (evtId) {
case GPTP_EVT_STATE_ENTRY:
gptp_startTimer(gPTPd, GPTP_TIMER_DELAYREQ_RPT, gPTPd->dm.delayReqInterval, GPTP_EVT_DM_PDELAY_REQ_RPT);
break;
case GPTP_EVT_DM_PDELAY_REQ_RPT:
gptp_stopTimer(gPTPd, GPTP_TIMER_DELAYREQ_RPT);
memset(&gPTPd->ts[0], 0, sizeof(struct timespec) * 4);
sendDelayReq(gPTPd);
getTxTS(gPTPd, &gPTPd->ts[0]);
dmHandleStateChange(gPTPd, DM_STATE_DELAY_RESP_WAIT);
break;
case GPTP_EVT_DM_PDELAY_REQ:
getRxTS(gPTPd, &gPTPd->ts[4]);
sendDelayResp(gPTPd);
getTxTS(gPTPd, &gPTPd->ts[5]);
sendDelayRespFlwUp(gPTPd);
break;
case GPTP_EVT_STATE_EXIT:
break;
default:
break;
}
break;
case DM_STATE_DELAY_RESP_WAIT:
switch (evtId) {
case GPTP_EVT_STATE_ENTRY:
gptp_startTimer(gPTPd, GPTP_TIMER_DELAYREQ_TO, gPTPd->dm.delayReqTimeOut, GPTP_EVT_DM_PDELAY_REQ_TO);
break;
case GPTP_EVT_DM_PDELAY_REQ:
getRxTS(gPTPd, &gPTPd->ts[4]);
sendDelayResp(gPTPd);
getTxTS(gPTPd, &gPTPd->ts[5]);
sendDelayRespFlwUp(gPTPd);
break;
case GPTP_EVT_DM_PDELAY_REQ_TO:
memset(&gPTPd->ts[0], 0, sizeof(struct timespec) * 4);
sendDelayReq(gPTPd);
getTxTS(gPTPd, &gPTPd->ts[0]);
break;
case GPTP_EVT_DM_PDELAY_RESP:
gptp_stopTimer(gPTPd, GPTP_TIMER_DELAYREQ_TO);
gptp_copyTSFromBuf(&gPTPd->ts[1], &gPTPd->rxBuf[GPTP_BODY_OFFSET]);
getRxTS(gPTPd, &gPTPd->ts[3]);
dmHandleStateChange(gPTPd, DM_STATE_DELAY_RESP_FLWUP_WAIT);
break;
case GPTP_EVT_STATE_EXIT:
break;
default:
break;
}
break;
case DM_STATE_DELAY_RESP_FLWUP_WAIT:
switch (evtId) {
case GPTP_EVT_STATE_ENTRY:
break;
case GPTP_EVT_DM_PDELAY_REQ:
getRxTS(gPTPd, &gPTPd->ts[4]);
sendDelayResp(gPTPd);
getTxTS(gPTPd, &gPTPd->ts[5]);
sendDelayRespFlwUp(gPTPd);
break;
case GPTP_EVT_DM_PDELAY_RESP_FLWUP:
gptp_copyTSFromBuf(&gPTPd->ts[2], &gPTPd->rxBuf[GPTP_BODY_OFFSET]);
for(int i = 0; i < 4; i++)
gPTP_logMsg(GPTP_LOG_INFO, "@@@ t%d: %lld_%ld\n", (i+1), (s64)gPTPd->ts[i].tv_sec, gPTPd->ts[i].tv_nsec);
gptp_timespec_diff(&gPTPd->ts[0],&gPTPd->ts[3],&diff[0]);
gptp_timespec_diff(&gPTPd->ts[1],&gPTPd->ts[2],&diff[1]);
if(diff[1].tv_nsec > diff[0].tv_nsec) {
gPTP_logMsg(GPTP_LOG_INFO, "Negative delay ignored 0:%lu 1:%lu\n", diff[0].tv_nsec, diff[1].tv_nsec);
} else {
gptp_timespec_diff(&diff[1],&diff[0],&diff[2]);
if(diff[2].tv_nsec > 50000) {
gPTP_logMsg(GPTP_LOG_INFO, "Abnormally large delay ignored %lu\n", (diff[2].tv_nsec / 2));
} else {
gPTPd->msrdDelay = diff[2].tv_nsec/ 2;
gPTP_logMsg(GPTP_LOG_NOTICE, "---> gPTP msrdDelay: %lu\n", gPTPd->msrdDelay);
}
}
dmHandleStateChange(gPTPd, DM_STATE_IDLE);
break;
case GPTP_EVT_STATE_EXIT:
break;
default:
break;
}
break;
default:
break;
}
}
static void dmHandleStateChange(struct gPTPd* gPTPd, int toState)
{
dmHandleEvent(gPTPd, GPTP_EVT_STATE_EXIT);
gPTPd->dm.state = toState;
dmHandleEvent(gPTPd, GPTP_EVT_STATE_ENTRY);
}
static void sendDelayReq(struct gPTPd* gPTPd)
{
int err = 0;
int txLen = sizeof(struct ethhdr);
struct gPTPHdr * gh = (struct gPTPHdr *)&gPTPd->txBuf[sizeof(struct ethhdr)];
/* Fill gPTP header */
gh->h.f.seqNo = gptp_chgEndianess16(gPTPd->dm.txSeqNo);
gh->h.f.b1.msgType = (GPTP_TRANSPORT_L2 | GPTP_MSG_TYPE_PDELAY_REQ);
gh->h.f.flags = gptp_chgEndianess16(GPTP_FLAGS_NONE);
gh->h.f.ctrl = GPTP_CONTROL_DELAY_ANNOUNCE;
gh->h.f.logMsgInt = gptp_calcLogInterval(gPTPd->dm.delayReqInterval / 1000);
/* Add gPTP header size */
txLen += sizeof(struct gPTPHdr);
/* PTP body */
memset(&gPTPd->txBuf[GPTP_BODY_OFFSET], 0, (GPTP_TX_BUF_SIZE - GPTP_BODY_OFFSET));
txLen += (GPTP_TS_LEN + GPTP_PORT_IDEN_LEN);
/* Insert length */
gh->h.f.msgLen = gptp_chgEndianess16(txLen - sizeof(struct ethhdr));
if ((err = sendto(gPTPd->sockfd, gPTPd->txBuf, txLen, 0, (struct sockaddr*)&gPTPd->txSockAddress, sizeof(struct sockaddr_ll))) < 0)
gPTP_logMsg(GPTP_LOG_DEBUG, "PDelayReq Send failed %d %d\n", err, errno);
else
gPTP_logMsg(GPTP_LOG_INFO, ">>> PDelayReq (%d) sent\n", gPTPd->dm.txSeqNo++);
}
static void sendDelayResp(struct gPTPd* gPTPd)
{
int err = 0;
int txLen = sizeof(struct ethhdr);
struct gPTPHdr * gh = (struct gPTPHdr *)&gPTPd->txBuf[sizeof(struct ethhdr)];
/* Fill gPTP header */
gh->h.f.seqNo = gptp_chgEndianess16(gPTPd->dm.rxSeqNo);
gh->h.f.b1.msgType = (GPTP_TRANSPORT_L2 | GPTP_MSG_TYPE_PDELAY_RESP);
gh->h.f.flags = gptp_chgEndianess16(GPTP_FLAGS_TWO_STEP);
gh->h.f.ctrl = GPTP_CONTROL_DELAY_ANNOUNCE;
gh->h.f.logMsgInt = GPTP_LOG_MSG_INT_MAX;
/* Add gPTP header size */
txLen += sizeof(struct gPTPHdr);
/* PTP body */
memset(&gPTPd->txBuf[GPTP_BODY_OFFSET], 0, (GPTP_TX_BUF_SIZE - GPTP_BODY_OFFSET));
gptp_copyTSToBuf(&gPTPd->ts[4], &gPTPd->txBuf[txLen]);
txLen += GPTP_TS_LEN;
memcpy(&gPTPd->txBuf[txLen], &gPTPd->dm.reqPortIden[0], GPTP_PORT_IDEN_LEN);
txLen += GPTP_PORT_IDEN_LEN;
/* Insert length */
gh->h.f.msgLen = gptp_chgEndianess16(txLen - sizeof(struct ethhdr));
if ((err = sendto(gPTPd->sockfd, gPTPd->txBuf, txLen, 0, (struct sockaddr*)&gPTPd->txSockAddress, sizeof(struct sockaddr_ll))) < 0)
gPTP_logMsg(GPTP_LOG_DEBUG, "PDelayResp Send failed %d %d\n", err, errno);
else
gPTP_logMsg(GPTP_LOG_INFO, "=== PDelayResp (%d) sent\n", gPTPd->dm.rxSeqNo);
}
static void sendDelayRespFlwUp(struct gPTPd* gPTPd)
{
int err = 0;
int txLen = sizeof(struct ethhdr);
struct gPTPHdr * gh = (struct gPTPHdr *)&gPTPd->txBuf[sizeof(struct ethhdr)];
/* Fill gPTP header */
gh->h.f.seqNo = gptp_chgEndianess16(gPTPd->dm.rxSeqNo);
gh->h.f.b1.msgType = (GPTP_TRANSPORT_L2 | GPTP_MSG_TYPE_PDELAY_RESP_FLWUP);
gh->h.f.flags = gptp_chgEndianess16(GPTP_FLAGS_NONE);
gh->h.f.ctrl = GPTP_CONTROL_DELAY_ANNOUNCE;
gh->h.f.logMsgInt = GPTP_LOG_MSG_INT_MAX;
/* Add gPTP header size */
txLen += sizeof(struct gPTPHdr);
/* PTP body */
memset(&gPTPd->txBuf[GPTP_BODY_OFFSET], 0, (GPTP_TX_BUF_SIZE - GPTP_BODY_OFFSET));
gptp_copyTSToBuf(&gPTPd->ts[5], &gPTPd->txBuf[txLen]);
txLen += GPTP_TS_LEN;
memcpy(&gPTPd->txBuf[txLen], &gPTPd->dm.reqPortIden[0], GPTP_PORT_IDEN_LEN);
txLen += GPTP_PORT_IDEN_LEN;
/* Insert length */
gh->h.f.msgLen = gptp_chgEndianess16(txLen - sizeof(struct ethhdr));
if ((err = sendto(gPTPd->sockfd, gPTPd->txBuf, txLen, 0, (struct sockaddr*)&gPTPd->txSockAddress, sizeof(struct sockaddr_ll))) < 0)
gPTP_logMsg(GPTP_LOG_DEBUG, "PDelayRespFlwUp Send failed %d %d\n", err, errno);
else
gPTP_logMsg(GPTP_LOG_INFO, "=== PDelayRespFlwUp (%d) sent\n", gPTPd->dm.rxSeqNo);
}