/*
 * 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.
 *-------------------------------------------------------------------------------
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/*! \file PHY/LTE_TRANSPORT/phich.c
* \brief Routines for generation of and computations regarding the uplink control information (UCI) for PUSCH. V8.6 2009-03
* \author R. Knopp, F. Kaltenberger, A. Bhamri
* \date 2011
* \version 0.1
* \company Eurecom
* \email: knopp@eurecom.fr, florian.kaltenberger@eurecom.fr, ankit.bhamri@eurecom.fr
* \note
* \warning
*/
#include "PHY/defs_eNB.h"
#ifdef DEBUG_UCI_TOOLS
  #include "PHY/vars.h"
#endif

//#define DEBUG_UCI 1


int16_t find_uci(uint16_t rnti, int frame, int subframe, PHY_VARS_eNB *eNB,find_type_t type) {
  uint16_t i;
  int16_t first_free_index=-1;
  AssertFatal(eNB!=NULL,"eNB is null\n");

  for (i=0; i<NUMBER_OF_UCI_VARS_MAX; i++) {
    if ((eNB->uci_vars[i].active >0) &&
        (eNB->uci_vars[i].rnti==rnti) &&
        (eNB->uci_vars[i].frame==frame) &&
        (eNB->uci_vars[i].subframe==subframe)) return(i);
    else if ((eNB->uci_vars[i].active == 0) && (first_free_index==-1)) first_free_index=i;
  }

  if (type == SEARCH_EXIST) return(-1);

  if (first_free_index==-1)
    LOG_E(MAC,"UCI table is full\n");

  return(first_free_index);
}



