/*
 * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The OpenAirInterface Software Alliance licenses this file to You under
 * the OAI Public License, Version 1.1  (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.openairinterface.org/?page_id=698
 *
 * 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.
 *-------------------------------------------------------------------------------
 * For more information about the OpenAirInterface (OAI) Software Alliance:
 *      contact@openairinterface.org
 */

/*!\brief Initilization and reconfiguration routines for LTE PHY */
#include "phy_init.h"
#include "PHY/phy_extern.h"
#include "PHY/CODING/coding_extern.h"
#include "PHY/LTE_ESTIMATION/lte_estimation.h"
#include "PHY/LTE_REFSIG/lte_refsig.h"
#include "PHY/LTE_TRANSPORT/transport_common_proto.h"

void generate_64qam_table(void)
{

  int a,b,c,index;


  for (a=-1; a<=1; a+=2)
    for (b=-1; b<=1; b+=2)
      for (c=-1; c<=1; c+=2) {
        index = (1+a)*2 + (1+b) + (1+c)/2;
        qam64_table[index] = -a*(QAM64_n1 + b*(QAM64_n2 + (c*QAM64_n3))); // 0 1 2
      }
}

void generate_16qam_table(void)
{

  int a,b,index;

  for (a=-1; a<=1; a+=2)
    for (b=-1; b<=1; b+=2) {
      index = (1+a) + (1+b)/2;
      qam16_table[index] = -a*(QAM16_n1 + (b*QAM16_n2));
    }
}

void generate_qpsk_table(void)
{

  int a,index;

  for (a=-1; a<=1; a+=2) {
    index = (1+a)/2;
    qpsk_table[index] = -a*QPSK;  
  }
}

void init_lte_top(LTE_DL_FRAME_PARMS *frame_parms)
{

  ccodelte_init();
  ccodelte_init_inv();

  init_dfts();


  phy_generate_viterbi_tables_lte();

  load_codinglib();
  lte_sync_time_init(frame_parms);

  generate_ul_ref_sigs();
  generate_ul_ref_sigs_rx();

  generate_64qam_table();
  generate_16qam_table();
  generate_qpsk_table();
  generate_RIV_tables();

  init_unscrambling_lut();
  init_scrambling_lut();
  //set_taus_seed(1328);


}

void free_lte_top(void)
{
  free_codinglib();
  lte_sync_time_free();

  /* free_ul_ref_sigs() is called in phy_free_lte_eNB() */
}


/*
 * @}*/
