main.c 14.9 KB
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/*******************************************************************************

  Eurecom OpenAirInterface
  Copyright(c) 1999 - 2010 Eurecom

  This program is free software; you can redistribute it and/or modify it
  under the terms and conditions of the GNU General Public License,
  version 2, as published by the Free Software Foundation.

  This program is distributed in the hope it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  more details.

  You should have received a copy of the GNU General Public License along with
  this program; if not, write to the Free Software Foundation, Inc.,
  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.

  The full GNU General Public License is included in this distribution in
  the file called "COPYING".

  Contact Information
  Openair Admin: openair_admin@eurecom.fr
  Openair Tech : openair_tech@eurecom.fr
  Forums       : http://forums.eurecom.fsr/openairinterface
  Address      : Eurecom, 2229, route des crêtes, 06560 Valbonne Sophia Antipolis, France

*******************************************************************************/
/*! \file main.c
* \brief top init of Layer 2
* \author Raymond Knopp and Navid Nikaein
* \date 2011
* \version 0.5
* @ingroup _mac

*/

#ifdef USER_MODE
#include "LAYER2/register.h"
#else
#ifdef KERNEL2_6
//#include <linux/config.h>
#include <linux/slab.h>
#endif

#ifdef KERNEL2_4
#include <linux/malloc.h>
#include <linux/wrapper.h>
#endif


#endif //USER_MODE

#include "defs.h"
#include "extern.h"
#include "PHY_INTERFACE/extern.h"
#include "PHY_INTERFACE/defs.h"
#include "PHY/defs.h"
#include "SCHED/defs.h"
#include "LAYER2/PDCP/pdcp.h"
#include "RRC/LITE/defs.h"
#include "UTIL/LOG/log.h"
#include "RRC/L2_INTERFACE/openair_rrc_L2_interface.h"
#ifdef PHY_EMUL
#include "SIMULATION/simulation_defs.h"
#endif //PHY_EMUL

#include "SCHED/defs.h"

//#ifdef BIGPHYSAREA
//extern void *bigphys_malloc(int);
//#endif


/***********************************************************************/
void dl_phy_sync_success(unsigned char Mod_id,
			 u32 frame,
			 unsigned char eNB_index,
			 u8 first_sync){  //init as MR
/***********************************************************************/
  // msg("[MAC]Node %d, PHY SYNC to eNB_index %d\n",NODE_ID[Mod_id],eNB_index);
  if (first_sync==1) {
    if( (layer2_init_UE(Mod_id)==-1) ||
	(openair_rrc_ue_init(Mod_id,eNB_index)==-1) ) {
	//(openair_rrc_lite_ue_init(Mod_id,eNB_index)==-1) ) {
      //    Mac_rlc_xface->Is_cluster_head[Mod_id]=2;
    }
  }
  else {
    mac_in_sync_ind(Mod_id,frame,eNB_index);
  }

}

/***********************************************************************/
void mrbch_phy_sync_failure(u8 Mod_id, u32 frame, u8 Free_ch_index){//init as CH
  /***********************************************************************/
  LOG_I(MAC,"FRAME %d: Node %d, NO PHY SYNC to master\n",frame,Mod_id);
  //if((layer2_init_eNB(Mod_id, Free_ch_index)==-1) || ( openair_rrc_lite_eNB_init(Mod_id)==-1)){
  if((layer2_init_eNB(Mod_id, Free_ch_index)==-1) || ( openair_rrc_eNB_init(Mod_id)==-1)){
    //    Mac_rlc_xface->Is_cluster_head[Mod_id]=2;
    }



}

/***********************************************************************/
char layer2_init_eNB(unsigned char Mod_id, unsigned char eNB_index){
/***********************************************************************/

  Mac_rlc_xface->Is_cluster_head[Mod_id]=1;

  //  msg("\nMAC: INIT eNB %d Successful \n\n",Mod_id);

  return 0;

}

/***********************************************************************/
char layer2_init_UE(unsigned char Mod_id){
  /***********************************************************************/
  Mac_rlc_xface->Is_cluster_head[NB_eNB_INST + Mod_id]=0;

  return 0;
}

/***********************************************************************/
void mac_UE_out_of_sync_ind(u8 Mod_id, u32 frame, u16 eNB_index){
/***********************************************************************/

//  Mac_rlc_xface->mac_out_of_sync_ind(Mod_id, frame, eNB_index);
}


/***********************************************************************/
int mac_top_init(int eMBMS_active, u8 cba_group_active){
/***********************************************************************/
  unsigned char  Mod_id,i,j;
  RA_TEMPLATE *RA_template;
  UE_TEMPLATE *UE_template;

  LOG_I(MAC,"[MAIN] Init function start:Nb_UE_INST=%d\n",NB_UE_INST);
  if (NB_UE_INST>0) {
    UE_mac_inst = (UE_MAC_INST*)malloc16(NB_UE_INST*sizeof(UE_MAC_INST));
    if (UE_mac_inst == NULL) {
      LOG_C(MAC,"[MAIN] Can't ALLOCATE %d Bytes for %d UE_MAC_INST with size %d \n",NB_UE_INST*sizeof(UE_MAC_INST),NB_UE_INST,sizeof(UE_MAC_INST));
      mac_xface->macphy_exit("[MAC][MAIN] not enough memory for UEs \n");
    }
    LOG_D(MAC,"[MAIN] ALLOCATE %d Bytes for %d UE_MAC_INST @ %p\n",NB_UE_INST*sizeof(UE_MAC_INST),NB_UE_INST,UE_mac_inst);
    bzero(UE_mac_inst,NB_UE_INST*sizeof(UE_MAC_INST));
    ue_init_mac();
  }
  else 
    UE_mac_inst = NULL;
  
  LOG_I(MAC,"[MAIN] Init function start:Nb_eNB_INST=%d\n",NB_eNB_INST);
  if (NB_eNB_INST>0) {
    eNB_mac_inst = (eNB_MAC_INST*)malloc16(NB_eNB_INST*sizeof(eNB_MAC_INST));
    if (eNB_mac_inst == NULL){
      LOG_D(MAC,"[MAIN] can't ALLOCATE %d Bytes for %d eNB_MAC_INST with size %d \n",NB_eNB_INST*sizeof(eNB_MAC_INST),NB_eNB_INST,sizeof(eNB_MAC_INST));
      mac_xface->macphy_exit("[MAC][MAIN] not enough memory for eNB \n");
    }
    LOG_D(MAC,"[MAIN] ALLOCATE %d Bytes for %d eNB_MAC_INST @ %p\n",NB_eNB_INST*sizeof(eNB_MAC_INST),NB_eNB_INST,eNB_mac_inst);
    bzero(eNB_mac_inst,NB_eNB_INST*sizeof(eNB_MAC_INST));
  }
  else
    eNB_mac_inst = NULL;
  
  for(Mod_id=0;Mod_id<NB_eNB_INST;Mod_id++){

#ifdef PHY_EMUL
    Mac_rlc_xface->Is_cluster_head[Mod_id]=2;//0: MR, 1: CH, 2: not CH neither MR
#endif
#ifdef Rel10
    int n;
    for (n=0;n<4096;n++)
      eNB_mac_inst[Mod_id].MCH_pdu.payload[n] = taus();
    //    Mac_rlc_xface->Node_id[Mod_id]=NODE_ID[Mod_id];
#endif
  }
  //  Mac_rlc_xface->frame=Mac_rlc_xface->frame;


  if (Is_rrc_registered == 1){
    LOG_I(MAC,"[MAIN] calling RRC\n");
#ifndef CELLULAR //nothing to be done yet for cellular
    openair_rrc_top_init(eMBMS_active, cba_group_active);
#endif
  }
    else {
      LOG_I(MAC,"[MAIN] Running without an RRC\n");
    }
#ifndef USER_MODE
#ifndef PHY_EMUL
  LOG_I(MAC,"[MAIN] add openair2 proc\n");
////  add_openair2_stats();
#endif
#endif

  init_transport_channels(2);

  // Set up DCIs for TDD 5MHz Config 1..6

  for (i=0;i<NB_eNB_INST;i++) {
    LOG_D(MAC,"[MAIN][eNB %d] initializing RA_template\n",i);
    LOG_D(MAC, "[MSC_NEW][FRAME 00000][MAC_eNB][MOD %02d][]\n", i);

    RA_template = (RA_TEMPLATE *)&eNB_mac_inst[i].RA_template[0];
    for (j=0;j<NB_RA_PROC_MAX;j++) {
      if (mac_xface->lte_frame_parms->frame_type == TDD) {
	memcpy((void *)&RA_template[j].RA_alloc_pdu1[0],(void *)&RA_alloc_pdu,sizeof(DCI1A_5MHz_TDD_1_6_t));
	memcpy((void *)&RA_template[j].RA_alloc_pdu2[0],(void *)&DLSCH_alloc_pdu1A,sizeof(DCI1A_5MHz_TDD_1_6_t));
	RA_template[j].RA_dci_size_bytes1 = sizeof(DCI1A_5MHz_TDD_1_6_t);
	RA_template[j].RA_dci_size_bytes2 = sizeof(DCI1A_5MHz_TDD_1_6_t);
	RA_template[j].RA_dci_size_bits1  = sizeof_DCI1A_5MHz_TDD_1_6_t;
	RA_template[j].RA_dci_size_bits2  = sizeof_DCI1A_5MHz_TDD_1_6_t;
      }
      else {
	memcpy((void *)&RA_template[j].RA_alloc_pdu1[0],(void *)&RA_alloc_pdu_fdd,sizeof(DCI1A_5MHz_FDD_t));
	memcpy((void *)&RA_template[j].RA_alloc_pdu2[0],(void *)&DLSCH_alloc_pdu1A_fdd,sizeof(DCI1A_5MHz_FDD_t));
	RA_template[j].RA_dci_size_bytes1 = sizeof(DCI1A_5MHz_FDD_t);
	RA_template[j].RA_dci_size_bytes2 = sizeof(DCI1A_5MHz_FDD_t);
	RA_template[j].RA_dci_size_bits1  = sizeof_DCI1A_5MHz_FDD_t;
	RA_template[j].RA_dci_size_bits2  = sizeof_DCI1A_5MHz_FDD_t;
      }
      RA_template[j].RA_dci_fmt1        = format1A;
      RA_template[j].RA_dci_fmt2        = format1A;
    }
    
    memset (&eNB_mac_inst[i].eNB_stats,0,sizeof(eNB_STATS));
    UE_template = (UE_TEMPLATE *)&eNB_mac_inst[i].UE_template[0];
    for (j=0;j<NUMBER_OF_UE_MAX;j++) {
      UE_template[j].rnti=0;
      // initiallize the eNB to UE statistics
      memset (&eNB_mac_inst[i].eNB_UE_stats[j],0,sizeof(eNB_UE_STATS));
    }
  }


 //ICIC init param
#ifdef ICIC
  SB_size=mac_xface->get_SB_size(mac_xface->lte_frame_parms->N_RB_DL);

  srand (time(NULL));

  for(j=0;j<NB_eNB_INST;j++){
	  eNB_mac_inst[j].sbmap_conf.first_subframe=0;
	  eNB_mac_inst[j].sbmap_conf.periodicity=10;
	  eNB_mac_inst[j].sbmap_conf.sb_size=SB_size;
	  eNB_mac_inst[j].sbmap_conf.nb_active_sb=1;
	  for(i=0;i<NUMBER_OF_SUBBANDS;i++)
		  eNB_mac_inst[j].sbmap_conf.sbmap[i]=1;

	  eNB_mac_inst[j].sbmap_conf.sbmap[rand()%NUMBER_OF_SUBBANDS]=0;

  }
#endif
//end ALU's algo

   LOG_I(MAC,"[MAIN][INIT] Init function finished\n");

  return(0);

}


/***********************************************************************/
int mac_init_global_param(void){
  /***********************************************************************/

  Is_rrc_registered=0;
  Mac_rlc_xface = NULL;
  LOG_I(MAC,"[MAIN] CALLING RLC_MODULE_INIT...\n");

  if (rlc_module_init()!=0)
    return(-1);

  LOG_I(MAC,"[MAIN] RLC_MODULE_INIT OK, malloc16 for mac_rlc_xface...\n");

  Mac_rlc_xface = (MAC_RLC_XFACE*)malloc16(sizeof(MAC_RLC_XFACE));
  bzero(Mac_rlc_xface,sizeof(MAC_RLC_XFACE));

  if(Mac_rlc_xface == NULL){
    LOG_E(MAC,"[MAIN] FATAL EROOR: Could not allocate memory for Mac_rlc_xface !!!\n");
    return (-1);

  }

  LOG_I(MAC,"[MAIN] malloc16 OK, mac_rlc_xface @ %p\n",(void *)Mac_rlc_xface);

  //  mac_xface->macphy_data_ind=macphy_data_ind;
  mac_xface->mrbch_phy_sync_failure=mrbch_phy_sync_failure;
  mac_xface->dl_phy_sync_success=dl_phy_sync_success;
  mac_xface->out_of_sync_ind=mac_out_of_sync_ind;

  //  Mac_rlc_xface->macphy_exit=  mac_xface->macphy_exit;
  //  Mac_rlc_xface->frame = 0;
  //  Mac_rlc_xface->mac_config_req=mac_config_req;
  //  Mac_rlc_xface->mac_meas_req=mac_meas_req;
  //  Mac_rlc_xface->rrc_rlc_config_req=rrc_rlc_config_req;
  //  Mac_rlc_xface->rrc_rlc_data_req=rrc_rlc_data_req;
  //  Mac_rlc_xface->rrc_rlc_register_rrc=rrc_rlc_register_rrc;

  //  Mac_rlc_xface->rrc_mac_config_req=rrc_mac_config_req;

  //  LOG_I(MAC,"[MAIN] INIT_GLOBAL_PARAM: Mac_rlc_xface=%p,rrc_rlc_register_rrc =%p\n",Mac_rlc_xface,Mac_rlc_xface->rrc_rlc_register_rrc);

  //  Mac_rlc_xface->mac_rlc_data_req=mac_rlc_data_req;
  //  Mac_rlc_xface->mac_rlc_data_ind=mac_rlc_data_ind;
  //  Mac_rlc_xface->mac_rlc_status_ind=mac_rlc_status_ind;
  //  Mac_rlc_xface->pdcp_data_req=pdcp_data_req;
  //  Mac_rlc_xface->mrbch_phy_sync_failure=mrbch_phy_sync_failure;
  //  Mac_rlc_xface->dl_phy_sync_success=dl_phy_sync_success;

  LOG_I(MAC,"[MAIN] RLC interface setup and init\n");
  rrc_init_global_param();
  Is_rrc_registered=1;
#ifdef USER_MODE
  pdcp_layer_init ();
#else
  pdcp_module_init ();
#endif

  LOG_I(MAC,"[MAIN] Init Global Param Done\n");

  return 0;
}


/***********************************************************************/
void mac_top_cleanup(void){
/***********************************************************************/
#ifndef USER_MODE
  pdcp_module_cleanup ();
#endif
  if (NB_UE_INST>0)
    free (UE_mac_inst);
  if (NB_eNB_INST>0)
    free(eNB_mac_inst);
  free( Mac_rlc_xface);
}

int l2_init(LTE_DL_FRAME_PARMS *frame_parms,int eMBMS_active, u8 cba_group_active) {



  LOG_I(MAC,"[MAIN] MAC_INIT_GLOBAL_PARAM IN...\n");
  //    NB_NODE=2;
  //    NB_INST=2;


  mac_init_global_param();


  mac_xface->macphy_init=(void (*)(void))mac_top_init;
#ifndef USER_MODE
  mac_xface->macphy_exit = openair_sched_exit;
#else
  mac_xface->macphy_exit=(void (*)(const char*)) exit;
#endif
  LOG_I(MAC,"[MAIN] init eNB MAC functions  \n");
  mac_xface->eNB_dlsch_ulsch_scheduler = eNB_dlsch_ulsch_scheduler;
  mac_xface->get_dci_sdu               = get_dci_sdu;
  mac_xface->fill_rar                  = fill_rar;
  mac_xface->terminate_ra_proc         = terminate_ra_proc;
  mac_xface->initiate_ra_proc          = initiate_ra_proc;
  mac_xface->cancel_ra_proc            = cancel_ra_proc;
  mac_xface->SR_indication             = SR_indication;
  mac_xface->rx_sdu                    = rx_sdu;
  mac_xface->get_dlsch_sdu             = get_dlsch_sdu;
  mac_xface->get_eNB_UE_stats          = get_eNB_UE_stats;
  mac_xface->get_transmission_mode     = get_transmission_mode;
  mac_xface->get_rballoc               = get_rballoc;
  mac_xface->get_nb_rb                 = conv_nprb;
  mac_xface->get_SB_size               = Get_SB_size;
  mac_xface->get_subframe_direction    = get_subframe_direction;
  mac_xface->Msg3_transmitted          = Msg3_tx;
  mac_xface->Msg1_transmitted          = Msg1_tx;
  mac_xface->ra_failed                 = ra_failed;
  mac_xface->ra_succeeded              = ra_succeeded;

  LOG_I(MAC,"[MAIN] init UE MAC functions \n");
  mac_xface->ue_decode_si              = ue_decode_si;
  mac_xface->ue_send_sdu               = ue_send_sdu;
#ifdef Rel10
  mac_xface->ue_send_mch_sdu           = ue_send_mch_sdu;
  mac_xface->ue_query_mch              = ue_query_mch;
#endif
  mac_xface->ue_get_SR                 = ue_get_SR;
  mac_xface->ue_get_sdu                = ue_get_sdu;
  mac_xface->ue_get_rach               = ue_get_rach;
  mac_xface->ue_process_rar            = ue_process_rar;
  mac_xface->ue_scheduler              = ue_scheduler;
  mac_xface->process_timing_advance    = process_timing_advance;


  LOG_I(MAC,"[MAIN] PHY Frame configuration \n");
  mac_xface->lte_frame_parms = frame_parms;

  mac_xface->get_ue_active_harq_pid = get_ue_active_harq_pid;
  mac_xface->get_PL                 = get_PL;
  mac_xface->get_Po_NOMINAL_PUSCH   = get_Po_NOMINAL_PUSCH;
  mac_xface->get_num_prach_tdd      = get_num_prach_tdd;
  mac_xface->get_fid_prach_tdd      = get_fid_prach_tdd;
  mac_xface->get_deltaP_rampup      = get_deltaP_rampup;
  mac_xface->computeRIV             = computeRIV;
  mac_xface->get_TBS_DL             = get_TBS_DL;
  mac_xface->get_TBS_UL             = get_TBS_UL;
  mac_xface->get_nCCE_max           = get_nCCE_max;
  mac_xface->get_ue_mode            = get_ue_mode;
  mac_xface->phy_config_sib1_eNB    = phy_config_sib1_eNB;
  mac_xface->phy_config_sib1_ue     = phy_config_sib1_ue;

  mac_xface->phy_config_sib2_eNB        = phy_config_sib2_eNB;
  mac_xface->phy_config_sib2_ue         = phy_config_sib2_ue;

#ifdef Rel10
  mac_xface->phy_config_sib13_eNB        = phy_config_sib13_eNB;
  mac_xface->phy_config_sib13_ue         = phy_config_sib13_ue;
#endif
#ifdef CBA
  mac_xface->phy_config_cba_rnti         = phy_config_cba_rnti ;
#endif 
  mac_xface->phy_config_meas_ue          = phy_config_meas_ue;

  mac_xface->phy_config_dedicated_eNB    = phy_config_dedicated_eNB;
  mac_xface->phy_config_dedicated_ue     = phy_config_dedicated_ue;

#ifdef Rel10
  mac_xface->get_mch_sdu                 = get_mch_sdu;
#endif

  mac_xface->get_PHR = get_PHR;
  LOG_D(MAC,"[MAIN] ALL INIT OK\n");

  mac_xface->macphy_init(eMBMS_active,cba_group_active);

  //Mac_rlc_xface->Is_cluster_head[0] = 1;
  //Mac_rlc_xface->Is_cluster_head[1] = 0;

    
  return(1);
}