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;
98 * @brief Forming anf filling the MUX Pdu
101 * Function : fillMsg4Pdu
103 * Forming and filling of Msg4Pdu
105 * @param[in] Msg4Alloc *msg4Alloc
108 void fillMsg4Pdu(Msg4Alloc *msg4Alloc)
110 MacDlData msg4DlData;
113 memset(&msg4DlData, 0, sizeof(MacDlData));
114 memset(&macCeData, 0, sizeof(MacCeInfo));
116 if(macCb.macCell->macRaCb[0].msg4Pdu != NULLP)
118 MAC_ALLOC(msg4DlData.pduInfo[0].dlPdu, \
119 macCb.macCell->macRaCb[0].msg4PduLen);
120 if(msg4DlData.pduInfo[0].dlPdu != NULLP)
122 fillMsg4DlData(&msg4DlData, macCb.macCell->macRaCb[0].msg4Pdu);
123 fillMacCe(&macCeData, macCb.macCell->macRaCb[0].msg3Pdu);
124 /* Forming Mux Pdu */
125 macCb.macCell->macRaCb[0].msg4TxPdu = NULLP;
126 MAC_ALLOC(macCb.macCell->macRaCb[0].msg4TxPdu, macCb.macCell->macRaCb[0].msg4TbSize);
127 if(macCb.macCell->macRaCb[0].msg4TxPdu != NULLP)
129 memset(macCb.macCell->macRaCb[0].msg4TxPdu, 0, macCb.macCell->macRaCb[0].msg4TbSize);
130 macMuxPdu(&msg4DlData, &macCeData, macCb.macCell->macRaCb[0].msg4TxPdu,\
131 macCb.macCell->macRaCb[0].msg4TbSize);
136 DU_LOG("\nMAC: Failed allocating memory for msg4TxPdu");
138 /* Free memory allocated */
139 MAC_FREE(msg4DlData.pduInfo[0].dlPdu, macCb.macCell->macRaCb[0].msg4PduLen);
143 /* storing msg4 Pdu in macDlSlot */
144 if(macCb.macCell->macRaCb[0].msg4TxPdu)
146 msg4Alloc->msg4Info.msg4PduLen = macCb.macCell->macRaCb[0].msg4TbSize;
147 MAC_ALLOC(msg4Alloc->msg4Info.msg4Pdu, msg4Alloc->msg4Info.msg4PduLen);
148 if(msg4Alloc->msg4Info.msg4Pdu != NULLP)
150 memcpy(msg4Alloc->msg4Info.msg4Pdu, macCb.macCell->macRaCb[0].msg4TxPdu, \
151 msg4Alloc->msg4Info.msg4PduLen);
156 DU_LOG("\nMAC: Failed at macMuxPdu()");
158 /* TODO: Free all allocated memory, after the usage */
159 /* MAC_FREE(macCb.macCell->macRaCb[0].msg4TxPdu, \
160 macCb.macCell->macRaCb[0].msg4TbSize); // TODO: To be freed after re-transmission is successful.
161 MAC_FREE(macCb.macCell->macRaCb[0].msg4Pdu, macCb.macCell->macRaCb[0].msg4PduLen); */
165 * @brief Builds and Send the Muxed Pdu to Lower MAC
169 * Function : buildAndSendMuxPdu
171 * Build and Sends the Muxed Pdu to Lower MAC.
173 * @param[in] SlotIndInfo *slotInd
177 void buildAndSendMuxPdu(SlotIndInfo currTimingInfo)
179 MacDlSlot *currDlSlot = NULLP;
180 SlotIndInfo muxTimingInfo;
181 memset(&muxTimingInfo, 0, sizeof(SlotIndInfo));
183 ADD_DELTA_TO_TIME(currTimingInfo, muxTimingInfo, PHY_DELTA);
184 currDlSlot = &macCb.macCell->dlSlot[muxTimingInfo.slot];
185 if(currDlSlot->dlInfo.msg4Alloc)
187 fillMsg4Pdu(currDlSlot->dlInfo.msg4Alloc);
193 * @brief Transmission time interval indication from PHY.
197 * Function : sendSlotIndMacToSch
199 * This API is invoked by MAC to send slot ind to scheduler.
201 * @param[in] SlotIndInfo *slotInd
206 int sendSlotIndMacToSch(SlotIndInfo *slotInd)
208 /* fill Pst structure to send to lwr_mac to MAC */
211 fillMacToSchPst(&pst);
212 pst.event = EVENT_SLOT_IND_TO_SCH;
214 return(*macSchSlotIndOpts[pst.selector])(&pst,slotInd);
217 /*******************************************************************
219 * @brief Send slot indication to DU APP
223 * Function : sendSlotIndMacToDuApp
226 * Send slot indication to DU APP
228 * @params[in] Slot indication info
229 * @return ROK - success
232 * ****************************************************************/
233 int sendSlotIndMacToDuApp(SlotIndInfo *slotInd)
239 /* Allocate sharable memory */
240 MAC_ALLOC_SHRABL_BUF(slotInfo, sizeof(SlotInfo));
243 DU_LOG("\nMAC : Slot Indication memory allocation failed");
247 slotInfo->cellId = macCb.macCell->cellId;
248 slotInfo->sfn = slotInd->sfn;
249 slotInfo->slot = slotInd->slot;
252 pst.selector = ODU_SELECTOR_LWLC;
254 pst.dstEnt = ENTDUAPP;
256 pst.srcInst = macCb.macInst;
257 pst.dstProcId = rgCb[pst.srcInst].rgInit.procId;
258 pst.srcProcId = rgCb[pst.srcInst].rgInit.procId;
259 pst.region = MAC_MEM_REGION;
261 pst.event = EVENT_MAC_SLOT_IND;
266 ret = MacDuAppSlotInd(&pst, slotInfo);
269 DU_LOG("\nMAC: Failed to send slot indication to DU APP");
270 MAC_FREE_SHRABL_BUF(MAC_MEM_REGION, MAC_POOL, slotInfo, sizeof(SlotInfo));
274 } /* sendSlotIndMacToDuApp */
278 * @brief Transmission time interval indication from PHY.
282 * Function : fapiMacSlotInd
284 * This API is invoked by PHY to indicate TTI indication to MAC for a cell.
286 * @param[in] Pst *pst
287 * @param[in] SuId suId
288 * @param[in] SlotIndInfo *slotInd
293 PUBLIC S16 fapiMacSlotInd
300 VOLATILE U32 startTime=0;
303 DU_LOG("\nMAC : Slot Indication received");
307 SStartTask(&startTime, PID_MAC_TTI_IND);
309 /* send slot indication to scheduler */
310 ret = sendSlotIndMacToSch(slotInd);
313 DU_LOG("\nMAC : Sending of slot ind msg from MAC to SCH failed");
317 ret = macProcessSlotInd(inst,*slotInd);
320 DU_LOG("\nMAC : macProcessSlotInd failed");
324 /* send slot indication to du app */
325 ret = sendSlotIndMacToDuApp(slotInd);
328 DU_LOG("\nMAC :Sending of slot ind msg from MAC to DU APP failed");
333 SStopTask(startTime, PID_MAC_TTI_IND);
336 } /* fapiMacSlotInd */
338 /**********************************************************************
340 **********************************************************************/