Rach Indication

[o-du/l2.git] / src / 5gnrmac / mac_rach.c

diff --git a/src/5gnrmac/mac_rach.c b/src/5gnrmac/mac_rach.c
index 3789350..f2d0a71 100644 (file)
--- a/src/5gnrmac/mac_rach.c
+++ b/src/5gnrmac/mac_rach.c
@@ -41,8 +41,90 @@
 #include "lrg.x"
 #include "du_app_mac_inf.h"
 #include "mac.h"
+#include "du_log.h"
 
+/* Function pointer for sending rach ind from MAC to SCH */
+MacSchRachIndFunc macSchRachIndOpts[]=
+{
+   packMacSchRachInd,
+   macSchRachInd,
+   packMacSchRachInd
+};
+
+
+/*******************************************************************
+ *
+ * @brief Sends RACH indication to SCH
+ *
+ * @details
+ *
+ *    Function : sendRachIndMacToSch
+ *
+ *    Functionality:
+ *     Sends RACH indication to SCH
+ *
+ * @params[in] RACH indication info
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+int sendRachIndMacToSch(RachIndInfo *rachInd)
+{
+   Pst pst;
+    
+   fillMacToSchPst(&pst);
+   pst.event = EVENT_RACH_IND_TO_SCH;
+    
+   return(*macSchRachIndOpts[pst.selector])(&pst, rachInd); 
+}
+ 
+/*******************************************************************
+ *
+ * @brief Processes RACH indication from PHY
+ *
+ * @details
+ *
+ *    Function : fapiMacRachInd
+ *
+ *    Functionality:
+ *      Processes RACH indication from PHY
+ *
+ * @params[in] Post structure
+ *             Rach indication message
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/ 
+uint16_t fapiMacRachInd(Pst *pst, RachInd *rachInd)
+{
+   uint8_t      pduIdx;
+   uint8_t      preambleIdx;
+   RachIndInfo  *rachIndInfo;
+
+   DU_LOG("\nMAC : Received RACH indication");
+   /* Considering one pdu and one preamble */
+   pduIdx = 0;
+   preambleIdx = 0;
+
+   rachIndInfo = &macCb.macCell->raCb;
+
+   rachIndInfo->cellId = rachInd->rachPdu[pduIdx].pci;
+   /* TODO : Allocate unique crnti for each ue */
+   rachIndInfo->crnti = 100;
+   rachIndInfo->timingInfo.sfn = rachInd->timingInfo.sfn;
+   rachIndInfo->timingInfo.slot = rachInd->timingInfo.slot;
+   rachIndInfo->slotIdx = rachInd->rachPdu[pduIdx].slotIdx;
+   rachIndInfo->symbolIdx = rachInd->rachPdu[pduIdx].symbolIdx;
+   rachIndInfo->frequencyIdx = rachInd->rachPdu[pduIdx].freqIdx;
+   rachIndInfo->preambleIdx = \
+      rachInd->rachPdu[pduIdx].preamInfo[preambleIdx].preamIdx;
+   rachIndInfo->timingAdv = \
+      rachInd->rachPdu[pduIdx].preamInfo[preambleIdx].timingAdv;
+
+   return(sendRachIndMacToSch(rachIndInfo));
+}
 
+ 
 /* spec-38.211 Table 6.3.3.1-7 */
 uint8_t UnrestrictedSetNcsTable[MAX_ZERO_CORR_CFG_IDX] = 
 {0, 2, 4, 6, 8, 10, 12, 13, 15, 17, 19, 23, 27, 34, 46, 69};