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Commit 12385fbd authored by Sandeep Kumar's avatar Sandeep Kumar
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changes to handle different proc in callers

parent ba776254
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Showing with 60 additions and 49 deletions
openair1/PHY/LTE_TRANSPORT/if4_tools.c
View file @ 12385fbd
......@@ -44,8 +44,11 @@
#include "PHY/LTE_TRANSPORT/if4_tools.h"
#include "PHY/TOOLS/ALAW/alaw_lut.h"
#include "targets/ARCH/ETHERNET/USERSPACE/LIB/if_defs.h"
// --- Careful to handle buffer memory --- RAW/UDP modes --- PRACH variables and data
void send_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc, uint16_t packet_type) {
void send_IF4(PHY_VARS_eNB *eNB, int frame, int subframe, 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];
......@@ -61,14 +64,14 @@ void send_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc, uint16_t packet_type) {
if (packet_type == IF4_PDLFFT) {
db_fulllength = 12*fp->N_RB_DL;
db_halflength = (db_fulllength)>>1;
slotoffsetF = (proc->subframe_tx)*(fp->ofdm_symbol_size)*((fp->Ncp==1) ? 12 : 14) + 1;
slotoffsetF = (subframe)*(fp->ofdm_symbol_size)*((fp->Ncp==1) ? 12 : 14) + 1;
blockoffsetF = slotoffsetF + fp->ofdm_symbol_size - db_halflength;
tx_buffer = malloc(/*SIZE_OF_MAC_BYTES +*/ sizeof_IF4_dl_header_t + db_fulllength*sizeof(int16_t));
IF4_dl_header_t *dl_header = (IF4_dl_header_t *)(tx_buffer /*+ MAC_HEADER_SIZE_BYTES*/);
data_block = (int16_t*)(tx_buffer /*+ MAC_HEADER_SIZE_BYTES*/ + sizeof_IF4_dl_header_t);
tx_buffer = malloc(MAC_HEADER_SIZE_BYTES + sizeof_IF4_dl_header_t + db_fulllength*sizeof(int16_t));
IF4_dl_header_t *dl_header = (IF4_dl_header_t *)(tx_buffer + MAC_HEADER_SIZE_BYTES);
data_block = (int16_t*)(tx_buffer + MAC_HEADER_SIZE_BYTES + sizeof_IF4_dl_header_t);
gen_IF4_dl_header(dl_header, proc);
gen_IF4_dl_header(dl_header, frame, subframe);
for (symbol_id=0; symbol_id<fp->symbols_per_tti; symbol_id++) {
// Do compression of the two parts and generate data blocks
......@@ -99,14 +102,14 @@ void send_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc, uint16_t packet_type) {
} else if (packet_type == IF4_PULFFT) {
db_fulllength = 12*fp->N_RB_UL;
db_halflength = (db_fulllength)>>1;
slotoffsetF = (proc->subframe_rx)*(fp->ofdm_symbol_size)*((fp->Ncp==1) ? 12 : 14) + 1;
slotoffsetF = (subframe)*(fp->ofdm_symbol_size)*((fp->Ncp==1) ? 12 : 14) + 1;
blockoffsetF = slotoffsetF + fp->ofdm_symbol_size - db_halflength;
tx_buffer = malloc(/*SIZE_OF_MAC_BYTES +*/ sizeof_IF4_dl_header_t + db_fulllength*sizeof(int16_t));
IF4_ul_header_t *ul_header = (IF4_ul_header_t *)(tx_buffer /*+ MAC_HEADER_SIZE_BYTES*/);
data_block = (int16_t*)(tx_buffer /*+ MAC_HEADER_SIZE_BYTES*/ + sizeof_IF4_ul_header_t);
tx_buffer = malloc(MAC_HEADER_SIZE_BYTES + sizeof_IF4_dl_header_t + db_fulllength*sizeof(int16_t));
IF4_ul_header_t *ul_header = (IF4_ul_header_t *)(tx_buffer + MAC_HEADER_SIZE_BYTES);
data_block = (int16_t*)(tx_buffer + MAC_HEADER_SIZE_BYTES + sizeof_IF4_ul_header_t);
gen_IF4_ul_header(ul_header, proc);
gen_IF4_ul_header(ul_header, frame, subframe);
for (symbol_id=0; symbol_id<fp->symbols_per_tti; symbol_id++) {
// Do compression of the two parts and generate data blocks - rxdataF
......@@ -123,7 +126,7 @@ void send_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc, uint16_t packet_type) {
// Write the packet(s) to the fronthaul
if ((eNB->ifdevice.trx_write_func(&eNB->ifdevice,
symbol_id,
(int64_t) symbol_id,
tx_buffer,
db_fulllength,
1,
......@@ -137,13 +140,13 @@ void send_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc, uint16_t packet_type) {
} else if (packet_type == IF4_PRACH) {
// FIX: hard coded prach samples length
db_fulllength = 839;
slotoffsetF = (proc->subframe_tx)*(fp->ofdm_symbol_size)*((fp->Ncp==1) ? 12 : 14) + 1;
slotoffsetF = (subframe)*(fp->ofdm_symbol_size)*((fp->Ncp==1) ? 12 : 14) + 1;
tx_buffer = malloc(/*SIZE_OF_MAC_BYTES +*/ sizeof_IF4_prach_header_t + db_fulllength*sizeof(int16_t));
IF4_prach_header_t *prach_header = (IF4_prach_header_t *)(tx_buffer /*+ MAC_HEADER_SIZE_BYTES*/);
data_block = (int16_t*)(tx_buffer /*+ MAC_HEADER_SIZE_BYTES*/ + sizeof_IF4_prach_header_t);
tx_buffer = malloc(MAC_HEADER_SIZE_BYTES + sizeof_IF4_prach_header_t + db_fulllength*sizeof(int16_t));
IF4_prach_header_t *prach_header = (IF4_prach_header_t *)(tx_buffer + MAC_HEADER_SIZE_BYTES);
data_block = (int16_t*)(tx_buffer + MAC_HEADER_SIZE_BYTES + sizeof_IF4_prach_header_t);
gen_IF4_prach_header(prach_header, proc);
gen_IF4_prach_header(prach_header, frame, subframe);
// Do compression and generate data blocks
for (element_id=0; element_id<db_fulllength; element_id++) {
......@@ -153,7 +156,7 @@ void send_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc, uint16_t packet_type) {
// Write the packet to the fronthaul
if ((eNB->ifdevice.trx_write_func(&eNB->ifdevice,
symbol_id,
(int64_t) symbol_id,
tx_buffer,
db_fulllength,
1,
......@@ -168,29 +171,35 @@ void send_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc, uint16_t packet_type) {
return;
}
void recv_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc, uint16_t *packet_type, uint32_t *symbol_number) {
void recv_IF4(PHY_VARS_eNB *eNB, int frame, int subframe, uint16_t *packet_type, uint32_t *symbol_number) {
LTE_DL_FRAME_PARMS *fp = &eNB->frame_parms;
int32_t **txdataF = eNB->common_vars.txdataF[0];
int32_t **rxdataF = eNB->common_vars.rxdataF[0];
int16_t *prachF = eNB->prach_vars.prachF;
uint16_t element_id;
uint16_t db_halflength;
uint16_t db_fulllength, db_halflength;
int slotoffsetF, blockoffsetF;
*packet_type = 0;
int64_t *ret_type=(int64_t*)malloc(sizeof(int64_t));
void *rx_buffer=NULL;
void **buff=NULL;
int16_t *data_block=NULL;
// Read packet(s) from the fronthaul
if (eNB->ifdevice.trx_read_func(&eNB->ifdevice,
symbol_number,
rx_buffer,
ret_type,
buff,
0,
0) < 0) {
perror("ETHERNET read");
}
packet_type = (uint16_t*) (rx_buffer+2);
*packet_type = *ret_type;
rx_buffer = buff[0];
if (*packet_type == IF4_PDLFFT) {
data_block = (int16_t*) (rx_buffer+sizeof_IF4_dl_header_t);
......@@ -198,12 +207,10 @@ void recv_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc, uint16_t *packet_type, u
db_halflength = (12*fp->N_RB_DL)>>1;
// Calculate from received packet
slotoffsetF = (proc->subframe_tx)*(fp->ofdm_symbol_size)*((fp->Ncp==1) ? 12 : 14) + 1;
slotoffsetF = (subframe)*(fp->ofdm_symbol_size)*((fp->Ncp==1) ? 12 : 14) + 1;
blockoffsetF = slotoffsetF + fp->ofdm_symbol_size - db_halflength;
data_block = (int16_t*)malloc(db_halflength*sizeof(int16_t));
// Do decompression of the two parts and generate data blocks
// Do decompression of the two parts and generate txdataF
for (element_id=0; element_id<db_halflength; element_id++) {
txdataF[0][blockoffsetF+element_id] = alaw2lin[ (data_block[element_id] & 0xff) ];
txdataF[0][blockoffsetF+element_id] |= alaw2lin[ (data_block[element_id]>>8) ]<<16;
......@@ -213,7 +220,7 @@ void recv_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc, uint16_t *packet_type, u
}
// Find and return symbol_number
*symbol_number = 0;
*symbol_number = ((IF4_dl_header_t*)(rx_buffer))->frame_status.sym_num;
} else if (*packet_type == IF4_PULFFT) {
data_block = (int16_t*) (rx_buffer+sizeof_IF4_ul_header_t);
......@@ -221,12 +228,10 @@ void recv_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc, uint16_t *packet_type, u
db_halflength = (12*fp->N_RB_UL)>>1;
// Calculate from received packet
slotoffsetF = (proc->subframe_rx)*(fp->ofdm_symbol_size)*((fp->Ncp==1) ? 12 : 14) + 1;
slotoffsetF = (subframe)*(fp->ofdm_symbol_size)*((fp->Ncp==1) ? 12 : 14) + 1;
blockoffsetF = slotoffsetF + fp->ofdm_symbol_size - db_halflength;
data_block = (int16_t*)malloc(db_halflength*sizeof(int16_t));
// Do decompression of the two parts and generate data blocks
// Do decompression of the two parts and generate rxdataF
for (element_id=0; element_id<db_halflength; element_id++) {
rxdataF[0][blockoffsetF+element_id] = alaw2lin[ (data_block[element_id] & 0xff) ];
rxdataF[0][blockoffsetF+element_id] |= alaw2lin[ (data_block[element_id]>>8) ]<<16;
......@@ -236,11 +241,13 @@ void recv_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc, uint16_t *packet_type, u
}
// Find and return symbol_number
*symbol_number = 0;
*symbol_number = ((IF4_ul_header_t*)(rx_buffer))->frame_status.sym_num;
} else if (*packet_type == IF4_PRACH) {
data_block = (int16_t*) (rx_buffer+sizeof_IF4_prach_header_t);
db_fulllength = 839; // hard coded
} else {
AssertFatal(1==0, "recv_IF4 - Unknown packet_type %x", *packet_type);
}
......@@ -249,7 +256,8 @@ void recv_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc, uint16_t *packet_type, u
return;
}
void gen_IF4_dl_header(IF4_dl_header_t *dl_packet, eNB_rxtx_proc_t *proc) {
void gen_IF4_dl_header(IF4_dl_header_t *dl_packet, int frame, int subframe) {
// Set Type and Sub-Type
dl_packet->type = IF4_PACKET_TYPE;
dl_packet->sub_type = IF4_PDLFFT;
......@@ -260,8 +268,8 @@ void gen_IF4_dl_header(IF4_dl_header_t *dl_packet, eNB_rxtx_proc_t *proc) {
// Set frame status
dl_packet->frame_status.ant_num = 0;
dl_packet->frame_status.ant_start = 0;
dl_packet->frame_status.rf_num = proc->frame_tx;
dl_packet->frame_status.sf_num = proc->subframe_tx;
dl_packet->frame_status.rf_num = frame;
dl_packet->frame_status.sf_num = subframe;
dl_packet->frame_status.sym_num = 0;
dl_packet->frame_status.rsvd = 0;
......@@ -269,7 +277,8 @@ void gen_IF4_dl_header(IF4_dl_header_t *dl_packet, eNB_rxtx_proc_t *proc) {
}
void gen_IF4_ul_header(IF4_ul_header_t *ul_packet, eNB_rxtx_proc_t *proc) {
void gen_IF4_ul_header(IF4_ul_header_t *ul_packet, int frame, int subframe) {
// Set Type and Sub-Type
ul_packet->type = IF4_PACKET_TYPE;
ul_packet->sub_type = IF4_PULFFT;
......@@ -280,8 +289,8 @@ void gen_IF4_ul_header(IF4_ul_header_t *ul_packet, eNB_rxtx_proc_t *proc) {
// Set frame status
ul_packet->frame_status.ant_num = 0;
ul_packet->frame_status.ant_start = 0;
ul_packet->frame_status.rf_num = proc->frame_rx;
ul_packet->frame_status.sf_num = proc->subframe_rx;
ul_packet->frame_status.rf_num = frame;
ul_packet->frame_status.sf_num = subframe;
ul_packet->frame_status.sym_num = 0;
ul_packet->frame_status.rsvd = 0;
......@@ -293,7 +302,8 @@ void gen_IF4_ul_header(IF4_ul_header_t *ul_packet, eNB_rxtx_proc_t *proc) {
}
void gen_IF4_prach_header(IF4_prach_header_t *prach_packet, eNB_proc_t *proc) {
void gen_IF4_prach_header(IF4_prach_header_t *prach_packet, int frame, int subframe) {
// Set Type and Sub-Type
prach_packet->type = IF4_PACKET_TYPE;
prach_packet->sub_type = IF4_PRACH;
......@@ -304,8 +314,8 @@ void gen_IF4_prach_header(IF4_prach_header_t *prach_packet, eNB_proc_t *proc) {
// Set LTE Prach configuration
prach_packet->prach_conf.rsvd = 0;
prach_packet->prach_conf.ant = 0;
prach_packet->prach_conf.rf_num = proc->frame_rx;
prach_packet->prach_conf.sf_num = proc->subframe_rx;
prach_packet->prach_conf.rf_num = frame;
prach_packet->prach_conf.sf_num = subframe;
prach_packet->prach_conf.exponent = 0;
// Set frame check sequence
......
openair1/PHY/LTE_TRANSPORT/if4_tools.h
View file @ 12385fbd
......@@ -39,6 +39,7 @@
*/
#include <stdint.h>
#include "PHY/defs.h"
/// Macro for IF4 packet type
#define IF4_PACKET_TYPE 0x080A
......@@ -175,12 +176,12 @@ struct IF4_prach_header {
typedef struct IF4_prach_header IF4_prach_header_t;
#define sizeof_IF4_prach_header_t 12
void gen_IF4_dl_header(IF4_dl_header_t*, eNB_rxtx_proc_t*);
void gen_IF4_dl_header(IF4_dl_header_t*, int, int);
void gen_IF4_ul_header(IF4_ul_header_t*, eNB_rxtx_proc_t*);
void gen_IF4_ul_header(IF4_ul_header_t*, int, int);
void gen_IF4_prach_header(IF4_prach_header_t*, eNB_proc_t*);
void gen_IF4_prach_header(IF4_prach_header_t*, int, int);
void send_IF4(PHY_VARS_eNB*, eNB_rxtx_proc_t*, uint16_t);
void send_IF4(PHY_VARS_eNB*, int, int, uint16_t);
void recv_IF4(PHY_VARS_eNB*, eNB_rxtx_proc_t*, uint16_t*, uint32_t*);
void recv_IF4(PHY_VARS_eNB*, int, int, uint16_t*, uint32_t*);
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