if header and data blocks seperated

openair1/PHY/LTE_TRANSPORT/if4_tools.c

@@ -48,21 +48,29 @@
 void send_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc, uint16_t packet_type) {
   LTE_DL_FRAME_PARMS *fp = &eNB->frame_parms;
   int32_t **txdataF = eNB->common_vars.txdataF[0];
+  int32_t **rxdataF = eNB->common_vars.rxdataF[0];
   
-  uint16_t symbol_id, element_id;
-  uint16_t db_fulllength = 12*fp->N_RB_DL;
-  uint16_t db_halflength = db_fulllength>>1;
-  int slotoffsetF = (proc->subframe_tx)*(fp->ofdm_symbol_size)*((fp->Ncp==1) ? 12 : 14) + 1;
-  int blockoffsetF = slotoffsetF + fp->ofdm_symbol_size - db_halflength; 
+  IF4_dl_header_t *dl_header=NULL;
+  IF4_ul_header_t *ul_header=NULL;
+  IF4_prach_header_t *prach_header=NULL;   
   
-  int16_t *data_block = (int16_t*)malloc(db_fulllength*sizeof(int16_t));  
+  uint16_t symbol_id, element_id;
+  uint16_t db_halflength; 
+  int slotoffsetF, blockoffsetF; 
+
+  int16_t *data_block=NULL;
+//  int16_t *txbuffer = (int16_t*)malloc(db_halflength*sizeof(int16_t));
 
-  // Caller: RCC - DL *** handle RRU case - UL and PRACH *** 
   if (packet_type == IF4_PDLFFT) {
-    IF4_dl_packet_t *dl_packet = (IF4_dl_packet_t*)malloc(sizeof_IF4_dl_packet_t);
-    gen_IF4_dl_packet(dl_packet, proc);
+    dl_header = (IF4_dl_header_t*)malloc(sizeof_IF4_dl_header_t);
+    gen_IF4_dl_header(dl_header, proc);
 		
-    dl_packet->data_block = data_block;
+    db_halflength = (12*fp->N_RB_DL)>>1;
+    slotoffsetF = (proc->subframe_tx)*(fp->ofdm_symbol_size)*((fp->Ncp==1) ? 12 : 14) + 1;
+    blockoffsetF = slotoffsetF + fp->ofdm_symbol_size - db_halflength; 
+    
+    printf("Problem here - db_half %d\n", db_halflength);
+    data_block = (int16_t*)malloc(db_halflength*sizeof(int16_t));
 
     for (symbol_id=0; symbol_id<fp->symbols_per_tti; symbol_id++) {
       
@@ -78,40 +86,45 @@ void send_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc, uint16_t packet_type) {
       }
 				 		
       // Update information in generated packet
-      dl_packet->frame_status.sym_num = symbol_id; 
+      dl_header->frame_status.sym_num = symbol_id; 
 			
+      printf("\n Not even here !!\n");
       // Write the packet(s) to the fronthaul
-    //  if ((bytes_sent = eNB->ifdevice.trx_write_func(&eNB->ifdevice,
-    //                                                (proc->timestamp_tx-eNB->ifdevice.openair0_cfg.tx_sample_advance),
-    //  			                                         dl_packet,
-    //  			                                         eNB->frame_parms.samples_per_tti,
-    //  			                                         eNB->frame_parms.nb_antennas_tx,
-    //                                                 0)) < 0) {
-    //    perror("RCC : ETHERNET write");
-    //}
+      if ((eNB->ifdevice.trx_write_func(&eNB->ifdevice,
+                                                     symbol_id,
+      			                                         &data_block,
+      			                                         1,
+      			                                         1,
+                                                     0)) < 0) {
+        perror("RCC : ETHERNET write");
+      }
       
       slotoffsetF  += fp->ofdm_symbol_size;
       blockoffsetF += fp->ofdm_symbol_size;    
     }
   } else if (packet_type == IF4_PULFFT) {
-    IF4_ul_packet_t *ul_packet = (IF4_ul_packet_t*)malloc(sizeof_IF4_ul_packet_t);
-    gen_IF4_ul_packet(ul_packet, proc);
+    ul_header = (IF4_ul_header_t*)malloc(sizeof_IF4_ul_header_t);
+    gen_IF4_ul_header(ul_header, proc);
+
+    db_halflength = (12*fp->N_RB_UL)>>1;
+    slotoffsetF = (proc->subframe_rx)*(fp->ofdm_symbol_size)*((fp->Ncp==1) ? 12 : 14) + 1;
+    blockoffsetF = slotoffsetF + fp->ofdm_symbol_size - db_halflength; 
 		
-    ul_packet->data_block = data_block;
+    data_block = (int16_t*)malloc(db_halflength*sizeof(int16_t));
 
     for (symbol_id=0; symbol_id<fp->symbols_per_tti; symbol_id++) {			
 
       // Do compression of the two parts and generate data blocks - rxdataF		
       for (element_id=0; element_id<db_halflength; element_id++) {
-        //data_block[element_id]  = lin2alaw[ (rxdataF[0][blockoffsetF+element_id] & 0xffff) + 32768 ];          
-        //data_block[element_id] |= lin2alaw[ (rxdataF[0][blockoffsetF+element_id]>>16) + 32768 ]<<8;  
+        data_block[element_id]  = lin2alaw[ (rxdataF[0][blockoffsetF+element_id] & 0xffff) + 32768 ];          
+        data_block[element_id] |= lin2alaw[ (rxdataF[0][blockoffsetF+element_id]>>16) + 32768 ]<<8;  
         
-        //data_block[element_id+db_halflength]  = lin2alaw[ (txdataF[0][slotoffsetF+element_id] & 0xffff) + 32768 ];     
-        //data_block[element_id+db_halflength] |= lin2alaw[ (txdataF[0][slotoffsetF+element_id]>>16) + 32768 ]<<8;  
+        data_block[element_id+db_halflength]  = lin2alaw[ (rxdataF[0][slotoffsetF+element_id] & 0xffff) + 32768 ];     
+        data_block[element_id+db_halflength] |= lin2alaw[ (rxdataF[0][slotoffsetF+element_id]>>16) + 32768 ]<<8;  
       }
        			
       // Update information in generated packet
-      ul_packet->frame_status.sym_num = symbol_id; 
+      ul_header->frame_status.sym_num = symbol_id; 
 			
       // Write the packet(s) to the fronthaul 
 
@@ -131,7 +144,7 @@ void send_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc, uint16_t packet_type) {
 void recv_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc, uint16_t *packet_type, uint32_t *symbol_number) {
 
   *packet_type = 0;
-  int16_t *data_block=NULL;
+  //int16_t *data_block=NULL;
    
   // Read packet(s) from the fronthaul    
 //    for(i=0; i<fp->symbols_per_tti; i++) {  
@@ -166,7 +179,7 @@ void recv_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc, uint16_t *packet_type, u
   return;   
 }
 
-void gen_IF4_dl_packet(IF4_dl_packet_t *dl_packet, eNB_rxtx_proc_t *proc) {      
+void gen_IF4_dl_header(IF4_dl_header_t *dl_packet, eNB_rxtx_proc_t *proc) {      
   // Set Type and Sub-Type
   dl_packet->type = IF4_PACKET_TYPE; 
   dl_packet->sub_type = IF4_PDLFFT;
@@ -183,10 +196,10 @@ void gen_IF4_dl_packet(IF4_dl_packet_t *dl_packet, eNB_rxtx_proc_t *proc) {
   dl_packet->frame_status.rsvd = 0;
 
   // Set frame check sequence
-  dl_packet->fcs = 0;
+
 }
 
-void gen_IF4_ul_packet(IF4_ul_packet_t *ul_packet, eNB_rxtx_proc_t *proc) {  
+void gen_IF4_ul_header(IF4_ul_header_t *ul_packet, eNB_rxtx_proc_t *proc) {  
   // Set Type and Sub-Type
   ul_packet->type = IF4_PACKET_TYPE; 
   ul_packet->sub_type = IF4_PULFFT;
@@ -207,10 +220,10 @@ void gen_IF4_ul_packet(IF4_ul_packet_t *ul_packet, eNB_rxtx_proc_t *proc) {
   ul_packet->gain0.rsvd = 0;
     
   // Set frame check sequence
-  ul_packet->fcs = 0;
+
 }
 
-void gen_IF4_prach_packet(IF4_prach_packet_t *prach_packet, eNB_rxtx_proc_t *proc) {
+void gen_IF4_prach_header(IF4_prach_header_t *prach_packet, eNB_rxtx_proc_t *proc) {
   // Set Type and Sub-Type
   prach_packet->type = IF4_PACKET_TYPE; 
   prach_packet->sub_type = IF4_PRACH;
@@ -226,5 +239,5 @@ void gen_IF4_prach_packet(IF4_prach_packet_t *prach_packet, eNB_rxtx_proc_t *pro
   prach_packet->prach_conf.exponent = 0;  
         
   // Set frame check sequence
-  prach_packet->fcs = 0;
+
 } 

openair1/PHY/LTE_TRANSPORT/if4_tools.h

@@ -93,7 +93,7 @@ struct IF4_lte_prach_conf {
 typedef struct IF4_lte_prach_conf IF4_lte_prach_conf_t;
 #define sizeof_IF4_lte_prach_conf_t 4
 
-struct IF4_dl_packet {
+struct IF4_dl_header {
   /// Destination Address
   
   /// Source Address
@@ -107,15 +107,15 @@ struct IF4_dl_packet {
   /// Frame Status
   IF4_frame_status_t frame_status;
   /// Data Blocks
-  int16_t *data_block;
+
   /// Frame Check Sequence
-  uint32_t fcs; 
+
 };
 
-typedef struct IF4_dl_packet IF4_dl_packet_t;
-#define sizeof_IF4_dl_packet_t 18 
+typedef struct IF4_dl_header IF4_dl_header_t;
+#define sizeof_IF4_dl_header_t 12 
 
-struct IF4_ul_packet {
+struct IF4_ul_header {
   /// Destination Address
   
   /// Source Address
@@ -145,15 +145,15 @@ struct IF4_ul_packet {
   /// Gain 7
   IF4_gain_t gain7;
   /// Data Blocks
-  int16_t *data_block;
+
   /// Frame Check Sequence
-  uint32_t fcs;
+
 };
 
-typedef struct IF4_ul_packet IF4_ul_packet_t;
-#define sizeof_IF4_ul_packet_t 34 
+typedef struct IF4_ul_header IF4_ul_header_t;
+#define sizeof_IF4_ul_header_t 28 
 
-struct IF4_prach_packet {
+struct IF4_prach_header {
   /// Destination Address 
   
   /// Source Address
@@ -167,19 +167,19 @@ struct IF4_prach_packet {
   /// LTE Prach Configuration
   IF4_lte_prach_conf_t prach_conf;
   /// Prach Data Block (one antenna)
-  int16_t *data_block;
+
   /// Frame Check Sequence
-  uint32_t fcs;
+
 };
 
-typedef struct IF4_prach_packet IF4_prach_packet_t;
-#define sizeof_IF4_prach_packet_t 18
+typedef struct IF4_prach_header IF4_prach_header_t;
+#define sizeof_IF4_prach_header_t 12
 
-void gen_IF4_dl_packet(IF4_dl_packet_t*, eNB_rxtx_proc_t*);
+void gen_IF4_dl_header(IF4_dl_header_t*, eNB_rxtx_proc_t*);
 
-void gen_IF4_ul_packet(IF4_ul_packet_t*, eNB_rxtx_proc_t*);
+void gen_IF4_ul_header(IF4_ul_header_t*, eNB_rxtx_proc_t*);
 
-void gen_IF4_prach_packet(IF4_prach_packet_t*, eNB_rxtx_proc_t*);
+void gen_IF4_prach_header(IF4_prach_header_t*, eNB_rxtx_proc_t*);
 
 void send_IF4(PHY_VARS_eNB*, eNB_rxtx_proc_t*, uint16_t);