Change in ...osmo-trx[master]: driveTxPriorityQueue(): use trxd_hdr_common for message parsing

fixeria gerrit-no-reply at lists.osmocom.org
Mon Jul 15 18:09:17 UTC 2019


fixeria has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-trx/+/14786


Change subject: driveTxPriorityQueue(): use trxd_hdr_common for message parsing
......................................................................

driveTxPriorityQueue(): use trxd_hdr_common for message parsing

Change-Id: If6a93e2b7fc9ada55edbdd16352cd4f7040e3d2a
---
M Transceiver52M/Transceiver.cpp
1 file changed, 8 insertions(+), 6 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-trx refs/changes/86/14786/1

diff --git a/Transceiver52M/Transceiver.cpp b/Transceiver52M/Transceiver.cpp
index 1e0339b..4cd8637 100644
--- a/Transceiver52M/Transceiver.cpp
+++ b/Transceiver52M/Transceiver.cpp
@@ -914,6 +914,7 @@
   int msgLen;
   int burstLen;
   char buffer[EDGE_BURST_NBITS + 50];
+  struct trxd_hdr_common *chdr;
 
   // check data socket
   msgLen = read(mDataSockets[chan], buffer, sizeof(buffer));
@@ -934,12 +935,13 @@
     return false;
   }
 
-  int timeSlot = (int) buffer[0];
-  uint32_t frameNum = 0;
-  for (int i = 0; i < 4; i++)
-    frameNum = (frameNum << 8) | (0x0ff & buffer[i+1]);
+  /* Common header part: HDR version, TDMA TN & FN */
+  chdr = (struct trxd_hdr_common *) buffer;
 
-  LOG(DEBUG) << "rcvd. burst at: " << GSM::Time(frameNum,timeSlot);
+  /* Convert TDMA FN to the host endianness */
+  chdr->fn = ntohl(chdr->fn);
+
+  LOG(DEBUG) << "rcvd. burst at: " << GSM::Time(chdr->fn, chdr->tn);
 
   int RSSI = (int) buffer[5];
   BitVector newBurst(burstLen);
@@ -948,7 +950,7 @@
   while (itr < newBurst.end())
     *itr++ = *bufferItr++;
 
-  GSM::Time currTime = GSM::Time(frameNum,timeSlot);
+  GSM::Time currTime = GSM::Time(chdr->fn, chdr->tn);
 
   addRadioVector(chan, newBurst, RSSI, currTime);
 

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Gerrit-Project: osmo-trx
Gerrit-Branch: master
Gerrit-Change-Id: If6a93e2b7fc9ada55edbdd16352cd4f7040e3d2a
Gerrit-Change-Number: 14786
Gerrit-PatchSet: 1
Gerrit-Owner: fixeria <axilirator at gmail.com>
Gerrit-MessageType: newchange
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