integration fix: various fixes

- fix compilation of dlsim/ulsim/oaisim by defining some needed
  global variables
- fix compilation of oaisim: compile coding and params_libconfig
- fix running of if4p5 with low CPU count (oaisim was not working
  on the machine 'haswell' because of this)

cmake_targets/build_oai

@@ -712,6 +712,12 @@ function main() {
     compilations \
 	  $oaisim_build_dir $oaisim_exec \
 	  $oaisim_exec $dbin/$oaisim_exec.$REL
+    compilations \
+	  $oaisim_build_dir $config_libconfig_shlib \
+	  lib$config_libconfig_shlib.so $dbin/lib$config_libconfig_shlib.so
+    compilations \
+          $oaisim_build_dir coding \
+          libcoding.so $dbin/libcoding.so
 
     if [ "$NOS1" != "1" ] ; then
 

openair1/SIMULATION/LTE_PHY/dlsim.c

@@ -69,6 +69,8 @@ double t_rx_min = 1000000000; /*!< \brief initial min process time for rx */
 int n_tx_dropped = 0; /*!< \brief initial max process time for tx */
 int n_rx_dropped = 0; /*!< \brief initial max process time for rx */
 
+int codingw = 0;
+
 void handler(int sig)
 {
   void *array[10];

openair1/SIMULATION/LTE_PHY/ulsim.c

@@ -89,6 +89,8 @@ nfapi_tx_request_pdu_t tx_pdu_list[MAX_NUM_TX_REQUEST_PDU];
 nfapi_tx_request_t TX_req;
 Sched_Rsp_t sched_resp;
 
+int codingw = 0;
+
 void
 fill_nfapi_ulsch_config_request(nfapi_ul_config_request_pdu_t *ul_config_pdu,
 				uint8_t                        cqi_req,

targets/RT/USER/lte-ru.c

@@ -2235,8 +2235,8 @@ void set_function_spec_param(RU_t *ru)
       ru->fh_north_out          = fh_if4p5_north_out;       // send_IF4p5 on reception
       ru->fh_south_out          = tx_rf;                    // send output to RF
       ru->fh_north_asynch_in    = fh_if4p5_north_asynch_in; // TX packets come asynchronously
-      ru->feprx                 = (get_nprocs()<=2) ? fep_full :ru_fep_full_2thread;                 // RX DFTs
-      ru->feptx_ofdm            = (get_nprocs()<=2) ? feptx_ofdm : feptx_ofdm_2thread;               // this is fep with idft only (no precoding in RRU)
+      ru->feprx                 = (get_nprocs()<=2 || !fepw) ? fep_full :ru_fep_full_2thread;                 // RX DFTs
+      ru->feptx_ofdm            = (get_nprocs()<=2 || !fepw) ? feptx_ofdm : feptx_ofdm_2thread;               // this is fep with idft only (no precoding in RRU)
       ru->feptx_prec            = NULL;
       ru->start_if              = start_if;                 // need to start the if interface for if4p5
       ru->ifdevice.host_type    = RRU_HOST;
@@ -2286,9 +2286,9 @@ void set_function_spec_param(RU_t *ru)
 
   case REMOTE_IF5: // the remote unit is IF5 RRU
     ru->do_prach               = 0;
-    ru->feprx                  = (get_nprocs()<=2) ? fep_full : fep_full;                   // this is frequency-shift + DFTs
+    ru->feprx                  = (get_nprocs()<=2 || !fepw) ? fep_full : fep_full;                   // this is frequency-shift + DFTs
     ru->feptx_prec             = feptx_prec;                 // need to do transmit Precoding + IDFTs
-    ru->feptx_ofdm             = (get_nprocs()<=2) ? feptx_ofdm : feptx_ofdm_2thread;                 // need to do transmit Precoding + IDFTs
+    ru->feptx_ofdm             = (get_nprocs()<=2 || !fepw) ? feptx_ofdm : feptx_ofdm_2thread;                 // need to do transmit Precoding + IDFTs
     if (ru->if_timing == synch_to_other) {
       ru->fh_south_in          = fh_slave_south_in;                  // synchronize to master
       ru->fh_south_out         = fh_if5_mobipass_south_out;          // use send_IF5 for mobipass

targets/SIMU/USER/oaisim.c

@@ -195,6 +195,11 @@ time_stats_t oaisim_stats_f;
 time_stats_t dl_chan_stats;
 time_stats_t ul_chan_stats;
 
+int emulate_rf = 0;
+int numerology = 0;
+int codingw = 0;
+int fepw = 0;
+
 // this should reflect the channel models in openair1/SIMULATION/TOOLS/defs.h
 mapping small_scale_names[] = { 
   { "custom", custom }, { "SCM_A", SCM_A },