1 /*******************************************************************************
2 ################################################################################
3 # Copyright (c) [2017-2019] [Radisys] #
5 # Licensed under the Apache License, Version 2.0 (the "License"); #
6 # you may not use this file except in compliance with the License. #
7 # You may obtain a copy of the License at #
9 # http://www.apache.org/licenses/LICENSE-2.0 #
11 # Unless required by applicable law or agreed to in writing, software #
12 # distributed under the License is distributed on an "AS IS" BASIS, #
13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. #
14 # See the License for the specific language governing permissions and #
15 # limitations under the License. #
16 ################################################################################
17 *******************************************************************************/
18 /* header include files (.h) */
19 #include "common_def.h"
21 #include "tfu.h" /* RGU Interface includes */
23 #include "crg.h" /* layer management defines for LTE-MAC */
24 #include "rg_sch_inf.h" /* layer management defines for LTE-MAC */
29 #include "tfu.x" /* RGU Interface includes */
31 #include "crg.x" /* layer management typedefs for MAC */
32 #include "rg_sch_inf.x" /* SCH interface typedefs */
34 #include "du_app_mac_inf.h"
38 #include "mac_upr_inf_api.h"
40 /* function pointers for packing slot ind from mac to sch */
41 MacSchSlotIndFunc macSchSlotIndOpts[] =
49 * @brief process DL allocation from scheduler
53 * Function : MacProcDlAlloc
55 * This function copied dl sch info in the mac slot info
58 * @param[in] DL allocation from scheduler
63 int MacProcDlAlloc(Pst *pst, DlSchedInfo *dlSchedInfo)
65 MacDlSlot *currDlSlot = NULLP;
67 if(dlSchedInfo != NULLP)
69 if(dlSchedInfo->isBroadcastPres)
71 currDlSlot = &macCb.macCell->dlSlot[dlSchedInfo->schSlotValue.broadcastTime.slot];
72 currDlSlot->dlInfo.isBroadcastPres = true;
73 memcpy(&currDlSlot->dlInfo.brdcstAlloc, &dlSchedInfo->brdcstAlloc, sizeof(DlBrdcstAlloc));
76 if(dlSchedInfo->rarAlloc != NULLP)
78 currDlSlot = &macCb.macCell->dlSlot[dlSchedInfo->schSlotValue.rarTime.slot];
79 currDlSlot->dlInfo.rarAlloc = dlSchedInfo->rarAlloc;
82 fillRarPdu(&currDlSlot->dlInfo.rarAlloc->rarInfo);
85 if(dlSchedInfo->msg4Alloc != NULLP)
87 Msg4Alloc *msg4Alloc = NULLP;
88 currDlSlot = &macCb.macCell->dlSlot[dlSchedInfo->schSlotValue.msg4Time.slot];
89 currDlSlot->dlInfo.msg4Alloc = dlSchedInfo->msg4Alloc; /* copy msg4 alloc pointer in MAC slot info */
90 msg4Alloc = dlSchedInfo->msg4Alloc;
91 macCb.macCell->macRaCb[0].msg4TbSize = msg4Alloc->msg4PdschCfg.codeword[0].tbSize;
97 void BuildAndSendMsg4MuxPdu(Msg4Alloc *msg4Alloc)
102 memset(&msg4DlData, 0, sizeof(MacDlData));
103 memset(&macCeData, 0, sizeof(MacCeInfo));
105 if(macCb.macCell->macRaCb[0].msg4Pdu != NULLP)
107 MAC_ALLOC(msg4DlData.pduInfo[0].dlPdu, \
108 macCb.macCell->macRaCb[0].msg4PduLen);
109 if(msg4DlData.pduInfo[0].dlPdu != NULLP)
111 fillMsg4DlData(&msg4DlData, macCb.macCell->macRaCb[0].msg4Pdu);
112 fillMacCe(&macCeData, &macCb.macCell->macRaCb[0].msg3Pdu);
113 /* Forming Mux Pdu */
114 macCb.macCell->macRaCb[0].msg4TxPdu = NULLP;
115 MAC_ALLOC(macCb.macCell->macRaCb[0].msg4TxPdu, macCb.macCell->macRaCb[0].msg4TbSize);
116 if(macCb.macCell->macRaCb[0].msg4TxPdu != NULLP)
118 memset(macCb.macCell->macRaCb[0].msg4TxPdu, 0, macCb.macCell->macRaCb[0].msg4TbSize);
119 macMuxPdu(&msg4DlData, &macCeData, macCb.macCell->macRaCb[0].msg4TxPdu,\
120 macCb.macCell->macRaCb[0].msg4TbSize);
125 DU_LOG("\nMAC: Failed allocating memory for msg4TxPdu");
127 /* Free memory allocated */
128 MAC_FREE(msg4DlData.pduInfo[0].dlPdu, macCb.macCell->macRaCb[0].msg4PduLen);
132 /* storing msg4 Pdu in macDlSlot */
133 if(macCb.macCell->macRaCb[0].msg4TxPdu)
135 msg4Alloc->msg4Info.msg4PduLen = macCb.macCell->macRaCb[0].msg4TbSize;
136 MAC_ALLOC(msg4Alloc->msg4Info.msg4Pdu, msg4Alloc->msg4Info.msg4PduLen);
137 if(msg4Alloc->msg4Info.msg4Pdu != NULLP)
139 memcpy(msg4Alloc->msg4Info.msg4Pdu, macCb.macCell->macRaCb[0].msg4TxPdu, \
140 msg4Alloc->msg4Info.msg4PduLen);
145 DU_LOG("\nMAC: Failed at macMuxPdu()");
147 /* TODO: Free all allocated memory, after the usage */
148 /* MAC_FREE(macCb.macCell->macRaCb[0].msg4TxPdu, \
149 macCb.macCell->macRaCb[0].msg4TbSize); // TODO: To be freed after re-transmission is successful.
150 MAC_FREE(macCb.macCell->macRaCb[0].msg4Pdu, macCb.macCell->macRaCb[0].msg4PduLen); */
154 * @brief Transmission time interval indication from PHY.
158 * Function : sendSlotIndMacToSch
160 * This API is invoked by MAC to send slot ind to scheduler.
162 * @param[in] SlotIndInfo *slotInd
167 int sendSlotIndMacToSch(SlotIndInfo *slotInd)
169 /* fill Pst structure to send to lwr_mac to MAC */
172 fillMacToSchPst(&pst);
173 pst.event = EVENT_SLOT_IND_TO_SCH;
175 return(*macSchSlotIndOpts[pst.selector])(&pst,slotInd);
178 /*******************************************************************
180 * @brief Send slot indication to DU APP
184 * Function : sendSlotIndMacToDuApp
187 * Send slot indication to DU APP
189 * @params[in] Slot indication info
190 * @return ROK - success
193 * ****************************************************************/
194 int sendSlotIndMacToDuApp(SlotIndInfo *slotInd)
200 /* Allocate sharable memory */
201 MAC_ALLOC_SHRABL_BUF(slotInfo, sizeof(SlotInfo));
204 DU_LOG("\nMAC : Slot Indication memory allocation failed");
208 slotInfo->cellId = macCb.macCell->cellId;
209 slotInfo->sfn = slotInd->sfn;
210 slotInfo->slot = slotInd->slot;
213 pst.selector = ODU_SELECTOR_LWLC;
215 pst.dstEnt = ENTDUAPP;
217 pst.srcInst = macCb.macInst;
218 pst.dstProcId = rgCb[pst.srcInst].rgInit.procId;
219 pst.srcProcId = rgCb[pst.srcInst].rgInit.procId;
220 pst.region = MAC_MEM_REGION;
222 pst.event = EVENT_MAC_SLOT_IND;
227 ret = MacDuAppSlotInd(&pst, slotInfo);
230 DU_LOG("\nMAC: Failed to send slot indication to DU APP");
231 MAC_FREE_SHRABL_BUF(MAC_MEM_REGION, MAC_POOL, slotInfo, sizeof(SlotInfo));
235 } /* sendSlotIndMacToDuApp */
239 * @brief Transmission time interval indication from PHY.
243 * Function : fapiMacSlotInd
245 * This API is invoked by PHY to indicate TTI indication to MAC for a cell.
247 * @param[in] Pst *pst
248 * @param[in] SuId suId
249 * @param[in] SlotIndInfo *slotInd
254 PUBLIC S16 fapiMacSlotInd
261 VOLATILE U32 startTime=0;
264 DU_LOG("\nMAC : Slot Indication received");
268 SStartTask(&startTime, PID_MAC_TTI_IND);
270 /* send slot indication to scheduler */
271 ret = sendSlotIndMacToSch(slotInd);
274 DU_LOG("\nMAC : Sending of slot ind msg from MAC to SCH failed");
278 ret = macProcessSlotInd(inst,*slotInd);
281 DU_LOG("\nMAC : macProcessSlotInd failed");
285 /* send slot indication to du app */
286 ret = sendSlotIndMacToDuApp(slotInd);
289 DU_LOG("\nMAC :Sending of slot ind msg from MAC to DU APP failed");
294 SStopTask(startTime, PID_MAC_TTI_IND);
297 } /* fapiMacSlotInd */
299 /**********************************************************************
301 **********************************************************************/