/*******************************************************************************
################################################################################
#   Copyright (c) [2017-2019] [Radisys]                                        #
#                                                                              #
#   Licensed under the Apache License, Version 2.0 (the "License");            #
#   you may not use this file except in compliance with the License.           #
#   You may obtain a copy of the License at                                    #
#                                                                              #
#       http://www.apache.org/licenses/LICENSE-2.0                             #
#                                                                              #
#   Unless required by applicable law or agreed to in writing, software        #
#   distributed under the License is distributed on an "AS IS" BASIS,          #
#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   #
#   See the License for the specific language governing permissions and        #
#   limitations under the License.                                             #
################################################################################
 *******************************************************************************/
/* header include files (.h) */
#include "common_def.h"
#include "lrg.h"
#include "lrg.x"
#include "du_app_mac_inf.h"
#include "mac_sch_interface.h"
#include "lwr_mac_upr_inf.h"
#include "mac.h"
#include "mac_utils.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
 *
 * ****************************************************************/
uint8_t sendRachIndMacToSch(RachIndInfo *rachInd)
{
   Pst pst;

   FILL_PST_MAC_TO_SCH(pst, 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
 *
 * ****************************************************************/ 
uint8_t fapiMacRachInd(Pst *pst, RachInd *rachInd)
{
   uint8_t      pduIdx;
   uint8_t      preambleIdx;
   RachIndInfo  rachIndInfo;

   DU_LOG("\nINFO  -->  MAC : Received RACH indication");
   /* Considering one pdu and one preamble */
   pduIdx = 0;
   preambleIdx = 0;

   rachIndInfo.cellId = rachInd->cellId;
   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.freqIdx = rachInd->rachPdu[pduIdx].freqIdx;
   rachIndInfo.preambleIdx = \
      rachInd->rachPdu[pduIdx].preamInfo[preambleIdx].preamIdx;
   rachIndInfo.timingAdv = \
      rachInd->rachPdu[pduIdx].preamInfo[preambleIdx].timingAdv;

   /* storing the value in macRaCb */
   createMacRaCb(&rachIndInfo);

   MAC_FREE_SHRABL_BUF(pst->region, pst->pool, rachInd, sizeof(RachInd));
   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};

/*******************************************************************
 *
 * @brief Processes UL scheduling info from SCH
 *
 * @details
 *
 *    Function : MacProcUlSchInfo
 *
 *    Functionality: Processes UL scheduling info from SCH
 *
 * @params[in] Post structure
 *             UL scheduling info
 * @return ROK     - success
 *         RFAILED - failure
 *
 * ****************************************************************/
uint8_t MacProcUlSchInfo(Pst *pst, UlSchedInfo *ulSchedInfo)
{
   uint16_t  cellIdx;

   GET_CELL_IDX(ulSchedInfo->cellId, cellIdx);
   if(ulSchedInfo != NULLP)
   {
      MacUlSlot *currUlSlot = 
	 &macCb.macCell[cellIdx]->ulSlot[ulSchedInfo->slotIndInfo.slot % MAX_SLOT_SUPPORTED];
      memcpy(&currUlSlot->ulInfo, ulSchedInfo, sizeof(UlSchedInfo)); 
   }
   return ROK;
}

/**********************************************************************
  End of file
 **********************************************************************/