#include "mac.h"
#include "mac_utils.h"
-extern uint32_t shortBsrBytesTable[MAX_SHORT_BSR_TABLE_ENTRIES];
/*******************************************************************
*
* RFAILED
*
* ****************************************************************/
-uint8_t unpackRxData(uint16_t cellId, SlotIndInfo slotInfo, RxDataIndPdu *rxDataIndPdu)
+uint8_t unpackRxData(uint16_t cellId, SlotTimingInfo slotInfo, RxDataIndPdu *rxDataIndPdu)
{
- uint8_t ueIdx; /* Iterator for UE list */
- uint8_t lcId; /* LC ID of a sub pdu */
- uint8_t fBit = 0; /* Value of F Bit in MAC sub-header */
- uint8_t idx = 0; /* Iterator for received PDU */
- uint16_t length; /* Length of payload in a sub-PDU */
- uint8_t *pdu; /* Payload in sub-PDU */
- uint16_t pduLen; /* Length of undecoded PDU */
- uint8_t *rxDataPdu; /* Received PDU in Rx Data Ind */
- uint16_t cellIdx; /* Cell Index */
+ uint8_t ueIdx = 0; /* Iterator for UE list */
+ uint8_t lcId = 0; /* LC ID of a sub pdu */
+ uint8_t fBit = 0; /* Value of F Bit in MAC sub-header */
+ uint8_t rxPduIdx = 0; /* Iterator for received PDU */
+ uint16_t length = 0; /* Length of payload in a sub-PDU */
+ uint8_t *pdu = NULLP; /* Payload in sub-PDU */
+ uint16_t pduLen = 0; /* Length of undecoded PDU */
+ uint8_t *rxDataPdu = NULLP; /* Received PDU in Rx Data Ind */
+ uint16_t cellIdx = 0; /* Cell Index */
uint8_t ret =ROK;
GET_CELL_IDX(cellId, cellIdx);
+
+ if(rxDataIndPdu == NULLP)
+ {
+ DU_LOG("\nERROR --> MAC: Rx Data is empty");
+ return RFAILED;
+ }
+
+ if(macCb.macCell[cellIdx] == NULLP)
+ {
+ DU_LOG("\nERROR --> CellId :%d is not created, as CellCB is empty", cellId);
+ return RFAILED;
+ }
pduLen = rxDataIndPdu->pduLength;
rxDataPdu = rxDataIndPdu->pduData;
GET_UE_IDX(rxDataIndPdu->rnti, ueIdx);
while(pduLen > 0)
{
/* MSB in 1st octet is Reserved bit. Hence not decoding it.
- 2nd MSB in 1st octet is R/F bit depending upon type of payload */
- fBit = (1 << 7) & rxDataPdu[idx];
+ 2nd MSB in 1st octet is R/F bit depending upon type of payload */
+ fBit = (1 << 7) & rxDataPdu[rxPduIdx];
/* LC id is the 6 LSB in 1st octet */
- lcId = (~((~0) << 6)) & rxDataPdu[idx];
+ lcId = (~((~0) << 6)) & rxDataPdu[rxPduIdx];
+ pdu = NULLP;
switch(lcId)
{
- case MAC_LCID_CCCH :
- {
- pduLen--;
-
- /* for UL CCCH,fixed length of MAC SDU */
- length = 6;
-
- /* Allocating sharable memory to send ul ccch msg to du app*/
- MAC_ALLOC_SHRABL_BUF(pdu, length);
- if(!pdu)
- {
- DU_LOG("\nMAC : UL CCCH PDU memory allocation failed");
- return RFAILED;
- }
- idx++;
- memcpy(pdu, &rxDataPdu[idx], length);
- pduLen -= length;
- idx = idx + length;
-
- /* store msg3 pdu in macRaCb for CRI value */
- memcpy(macCb.macCell[cellIdx]->macRaCb[ueIdx].msg3Pdu, pdu, length);
-
- /* Send UL-CCCH Indication to DU APP */
- ret = macProcUlCcchInd(macCb.macCell[cellIdx]->cellId, rxDataIndPdu->rnti, length, pdu);
- break;
- }
-
- case MAC_LCID_MIN ... MAC_LCID_MAX :
- {
- DU_LOG("\nMAC : PDU received for LC ID %d", lcId);
-
- pduLen--;
- idx++;
-
- length = rxDataPdu[idx];
- if(fBit)
- {
- pduLen--;
- idx++;
- length = (length << 8) & rxDataPdu[idx];
- }
-
- /* Copying the payload to send to RLC */
- MAC_ALLOC_SHRABL_BUF(pdu, length);
- if(!pdu)
- {
- DU_LOG("\nMAC : Memory allocation failed while demuxing Rx Data PDU");
- return RFAILED;
- }
- pduLen--;
- idx++;
- memcpy(pdu, &rxDataPdu[idx], length);
- pduLen -= length;
- idx = idx + length;
-
- /* Delete RA cb once RRC setup complete received */
- if(macCb.macCell[cellIdx]->macRaCb[ueIdx].crnti == rxDataIndPdu->rnti)
- {
- MAC_FREE(macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4Pdu, \
- macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4PduLen);
+ case MAC_LCID_CCCH :
+ {
+ pduLen--;
+
+ /* for UL CCCH,fixed length of MAC SDU */
+ length = 6;
+
+ /* Allocating sharable memory to send ul ccch msg to du app*/
+ MAC_ALLOC_SHRABL_BUF(pdu, length);
+ if(!pdu)
+ {
+ DU_LOG("\nERROR --> MAC : UL CCCH PDU memory allocation failed");
+ return RFAILED;
+ }
+ rxPduIdx++;
+ memcpy(pdu, &rxDataPdu[rxPduIdx], length);
+ pduLen -= length;
+ rxPduIdx = rxPduIdx + length;
+
+ /* store msg3 pdu in macRaCb for CRI value */
+ memcpy(macCb.macCell[cellIdx]->macRaCb[ueIdx].msg3Pdu, pdu, length);
+
+ /* Send UL-CCCH Indication to DU APP */
+ ret = macProcUlCcchInd(macCb.macCell[cellIdx]->cellId, rxDataIndPdu->rnti, length, pdu);
+ break;
+ }
+
+ case MAC_LCID_MIN ... MAC_LCID_MAX :
+ {
+ DU_LOG("\nINFO --> MAC : PDU received for LC ID %d", lcId);
+ pduLen--;
+ rxPduIdx++;
+
+ length = rxDataPdu[rxPduIdx];
+ if(fBit)
+ {
+ pduLen--;
+ rxPduIdx++;
+ length = (length << 8) & rxDataPdu[rxPduIdx];
+ }
+
+ pdu = NULLP;
+ /* Copying the payload to send to RLC */
+ MAC_ALLOC_SHRABL_BUF(pdu, length);
+ if(!pdu)
+ {
+ DU_LOG("\nERROR --> MAC : Memory allocation failed while demuxing Rx Data PDU");
+ return RFAILED;
+ }
+ pduLen--;
+ rxPduIdx++;
+ memcpy(pdu, &rxDataPdu[rxPduIdx], length);
+ pduLen -= length;
+ rxPduIdx = rxPduIdx + length;
+
+ /* Delete RA cb once RRC setup complete received */
+ if(macCb.macCell[cellIdx]->macRaCb[ueIdx].crnti == rxDataIndPdu->rnti)
+ {
+ MAC_FREE(macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4Pdu, \
+ macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4PduLen);
MAC_FREE(macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4TxPdu, \
- macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4TbSize);
- memset(&macCb.macCell[cellIdx]->macRaCb[ueIdx], 0, sizeof(MacRaCbInfo));
- }
-
- /* Send UL Data to RLC */
- ret = macProcUlData(cellId, rxDataIndPdu->rnti, slotInfo, lcId, length, pdu);
-
- break;
- }
- case MAC_LCID_RESERVED_MIN ... MAC_LCID_RESERVED_MAX :
- break;
-
- case MAC_LCID_CCCH_48BIT :
- break;
-
- case MAC_LCID_BIT_RATE_QUERY :
- break;
-
- case MAC_LCID_MULT_PHR_FOUR_OCT :
- break;
-
- case MAC_LCID_CFG_GRANT_CFM :
- break;
-
- case MAC_LCID_MULT_PHR_ONE_OCT:
- break;
-
- case MAC_LCID_SINGLE_PHR :
- break;
-
- case MAC_LCID_CRNTI :
- break;
-
- case MAC_LCID_SHORT_TRUNC_BSR :
- break;
-
- case MAC_LCID_LONG_TRUNC_BSR :
- break;
-
- case MAC_LCID_SHORT_BSR :
- {
- uint8_t lcgId = 0;
- uint8_t bufferSizeIdx = 0;
- uint8_t crnti = 0;
- uint32_t bufferSize = 0;
-
- pduLen--;
-
- idx++;
- crnti = rxDataIndPdu->rnti;
- /* 5 LSB bits in pdu represent buffer size */
- bufferSizeIdx = (~((~0) << 5)) & rxDataPdu[idx];
- /* first 3 MSB bits in pdu represent LCGID */
- lcgId = (rxDataPdu[idx]) >> 5;
- /* determine actual number of bytes requested */
- bufferSize = shortBsrBytesTable[bufferSizeIdx];
- ret = macProcShortBsr(macCb.macCell[cellIdx]->cellId, crnti, lcgId, bufferSize);
- pduLen--;
- idx++;
-
- break;
- }
-
- case MAC_LCID_LONG_BSR :
- break;
-
- case MAC_LCID_PADDING :
- break;
-
- default:
- {
- DU_LOG("\nMAC : Invalid LC Id %d", lcId);
- return RFAILED;
- }
+ macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4TbSize - TX_PAYLOAD_HDR_LEN);
+ memset(&macCb.macCell[cellIdx]->macRaCb[ueIdx], 0, sizeof(MacRaCbInfo));
+ }
+
+ /* Send UL Data to RLC */
+ ret = macProcUlData(cellId, rxDataIndPdu->rnti, slotInfo, lcId, length, pdu);
+
+ break;
+ }
+ case MAC_LCID_RESERVED_MIN ... MAC_LCID_RESERVED_MAX :
+ break;
+
+ case MAC_LCID_CCCH_48BIT :
+ break;
+
+ case MAC_LCID_BIT_RATE_QUERY :
+ break;
+
+ case MAC_LCID_MULT_PHR_FOUR_OCT :
+ break;
+
+ case MAC_LCID_CFG_GRANT_CFM :
+ break;
+
+ case MAC_LCID_MULT_PHR_ONE_OCT:
+ break;
+
+ case MAC_LCID_SINGLE_PHR :
+ break;
+
+ case MAC_LCID_CRNTI :
+ break;
+
+ case MAC_LCID_SHORT_TRUNC_BSR :
+ break;
+
+ case MAC_LCID_LONG_TRUNC_BSR :
+ break;
+
+ case MAC_LCID_SHORT_BSR :
+ {
+ uint8_t lcgId = 0;
+ uint8_t bufferSizeIdx = 0;
+ uint8_t crnti = 0;
+ uint32_t bufferSize = 0;
+
+ pduLen--;
+
+ rxPduIdx++;
+ crnti = rxDataIndPdu->rnti;
+ /* 5 LSB bits in pdu represent buffer size */
+ bufferSizeIdx = (~((~0) << 5)) & rxDataPdu[rxPduIdx];
+ /* first 3 MSB bits in pdu represent LCGID */
+ lcgId = (rxDataPdu[rxPduIdx]) >> 5;
+ /* determine actual number of bytes requested */
+ bufferSize = shortBsrBytesTable[bufferSizeIdx];
+ ret = macProcShortBsr(macCb.macCell[cellIdx]->cellId, crnti, lcgId, bufferSize);
+ pduLen--;
+ rxPduIdx++;
+
+ break;
+ }
+
+ case MAC_LCID_LONG_BSR :
+ {
+ DataVolInfo dataVolInfo[MAX_NUM_LOGICAL_CHANNEL_GROUPS];
+ memset(dataVolInfo, 0,MAX_NUM_LOGICAL_CHANNEL_GROUPS * sizeof(DataVolInfo));
+ uint8_t lcgIdx = 0;
+ uint8_t crnti = 0;
+ uint8_t numLcg = 0;
+ uint8_t lcgIdxPos = 0;
+ pduLen--;
+
+ rxPduIdx++;/*To reach the Octet where lcgIdx will be present*/
+ crnti = rxDataIndPdu->rnti;
+
+ lcgIdxPos = rxPduIdx;
+
+ pduLen--;
+ rxPduIdx++;/*To reach the Octet where bsrIdx starts*/
+ for(lcgIdx = 0; lcgIdx < MAX_NUM_LOGICAL_CHANNEL_GROUPS; lcgIdx++)
+ {
+ if(rxDataPdu[lcgIdxPos] & (1 << lcgIdx))
+ {
+ if(rxDataPdu[rxPduIdx] > 0 && rxDataPdu[rxPduIdx] < MAX_LONG_BSR_TABLE_ENTRIES)
+ {
+ dataVolInfo[numLcg].dataVol = longBsrBytesTable[rxDataPdu[rxPduIdx]];
+ dataVolInfo[numLcg].lcgId = lcgIdx;
+ numLcg++;
+ }
+ else
+ {
+ DU_LOG("\nERROR --> MAC: Invalid BsrIdx:%d rcvd for lcgIdx:%d",lcgIdx,rxDataPdu[rxPduIdx]);
+ }
+ /*next byte in PDU*/
+ pduLen--;
+ rxPduIdx++;
+ }
+ }
+
+ ret = macProcLongBsr(macCb.macCell[cellIdx]->cellId, crnti, numLcg, dataVolInfo);
+
+ break;
+ }
+
+ case MAC_LCID_PADDING :
+ break;
+
+ default:
+ {
+ DU_LOG("\nERROR --> MAC : Invalid LC Id %d", lcId);
+ return RFAILED;
+ }
} /* End of switch */
if(lcId == MAC_LCID_PADDING)
{
- break;
+ break;
}
} /* End of While */