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57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
/*
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* Aurelio Colosimo for CERN, 2012 -- public domain
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* Based on ptp-noposix project (see AUTHORS for details)
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*/
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#include <ppsi/ppsi.h>
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#include "wr-api.h"
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int wr_resp_calib_req(struct pp_instance *ppi, unsigned char *pkt, int plen)
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{
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int e = 0;
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MsgSignaling wrsig_msg;
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if (ppi->is_new_state) {
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WR_DSPOR(ppi)->wrPortState = WRS_RESP_CALIB_REQ;
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if (WR_DSPOR(ppi)->otherNodeCalSendPattern) {
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wr_calibration_pattern_enable(ppi, 0, 0, 0);
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pp_timeout_set(ppi, PP_TO_EXT_0,
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WR_DSPOR(ppi)->otherNodeCalPeriod / 1000);
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}
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}
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if ((WR_DSPOR(ppi)->otherNodeCalSendPattern) &&
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(pp_timeout_z(ppi, PP_TO_EXT_0))) {
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if (WR_DSPOR(ppi)->wrMode == WR_MASTER)
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ppi->next_state = PPS_MASTER;
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else
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ppi->next_state = PPS_LISTENING;
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WR_DSPOR(ppi)->wrPortState = WRS_IDLE;
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goto out;
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}
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if (plen == 0)
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goto out;
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if (ppi->received_ptp_header.messageType == PPM_SIGNALING) {
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msg_unpack_wrsig(ppi, pkt, &wrsig_msg,
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&(WR_DSPOR(ppi)->msgTmpWrMessageID));
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if (WR_DSPOR(ppi)->msgTmpWrMessageID == CALIBRATED) {
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if (WR_DSPOR(ppi)->otherNodeCalSendPattern)
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wr_calibration_pattern_disable(ppi);
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if (WR_DSPOR(ppi)->wrMode == WR_MASTER)
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ppi->next_state = WRS_WR_LINK_ON;
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else
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ppi->next_state = WRS_CALIBRATION;
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}
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}
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out:
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ppi->next_delay = WR_DSPOR(ppi)->wrStateTimeout;
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return e;
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}
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