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OpenXG-RAN
Commit 08499a69 authored by luhan wang's avatar luhan wang
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modifications for IF4p5 UDP transport

parent 25ab1c35
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Showing with 73 additions and 33 deletions
openair1/PHY/LTE_TRANSPORT/if4_tools.c 100644 → 100755
View file @ 08499a69
......@@ -41,7 +41,8 @@
#include "PHY/defs.h"
#include "PHY/TOOLS/alaw_lut.h"
#include "targets/ARCH/ETHERNET/USERSPACE/LIB/if_defs.h"
//#include "targets/ARCH/ETHERNET/USERSPACE/LIB/if_defs.h"
#include "targets/ARCH/ETHERNET/USERSPACE/LIB/ethernet_lib.h"
#include "UTIL/LOG/vcd_signal_dumper.h"
void send_IF4p5(PHY_VARS_eNB *eNB, int frame, int subframe, uint16_t packet_type, int k) {
......@@ -57,6 +58,9 @@ void send_IF4p5(PHY_VARS_eNB *eNB, int frame, int subframe, uint16_t packet_type
uint16_t *data_block=NULL, *i=NULL;
IF4p5_header_t *packet_header=NULL;
eth_state_t *eth = (eth_state_t*) (eNB->ifdevice.priv);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_SEND_IF4, 1 );
if (packet_type == IF4p5_PDLFFT) {
......@@ -65,10 +69,14 @@ void send_IF4p5(PHY_VARS_eNB *eNB, int frame, int subframe, uint16_t packet_type
slotoffsetF = (subframe)*(fp->ofdm_symbol_size)*((fp->Ncp==1) ? 12 : 14) + 1;
blockoffsetF = slotoffsetF + fp->ofdm_symbol_size - db_halflength - 1;
IF4p5_header_t *dl_header = (IF4p5_header_t *)(tx_buffer + MAC_HEADER_SIZE_BYTES);
if (eth->flags == ETH_RAW_IF4p5_MODE) {
packet_header = (IF4p5_header_t *)(tx_buffer + MAC_HEADER_SIZE_BYTES);
data_block = (uint16_t*)(tx_buffer + MAC_HEADER_SIZE_BYTES + sizeof_IF4p5_header_t);
gen_IF4p5_dl_header(dl_header, frame, subframe);
} else {
packet_header = (IF4p5_header_t *)(tx_buffer);
data_block = (uint16_t*)(tx_buffer + sizeof_IF4p5_header_t);
}
gen_IF4p5_dl_header(packet_header, frame, subframe);
for (symbol_id=0; symbol_id<fp->symbols_per_tti; symbol_id++) {
......@@ -80,8 +88,8 @@ void send_IF4p5(PHY_VARS_eNB *eNB, int frame, int subframe, uint16_t packet_type
data_block[element_id+db_halflength] = ((uint16_t) lin2alaw[*i]) | (lin2alaw[*(i+1)]<<8);
}
dl_header->frame_status &= ~(0x000f<<26);
dl_header->frame_status |= (symbol_id&0x000f)<<26;
packet_header->frame_status &= ~(0x000f<<26);
packet_header->frame_status |= (symbol_id&0x000f)<<26;
if ((eNB->ifdevice.trx_write_func(&eNB->ifdevice,
symbol_id,
......@@ -101,10 +109,14 @@ void send_IF4p5(PHY_VARS_eNB *eNB, int frame, int subframe, uint16_t packet_type
slotoffsetF = 1;
blockoffsetF = slotoffsetF + fp->ofdm_symbol_size - db_halflength - 1;
IF4p5_header_t *ul_header = (IF4p5_header_t *)(tx_buffer + MAC_HEADER_SIZE_BYTES);
if (eth->flags == ETH_RAW_IF4p5_MODE) {
packet_header = (IF4p5_header_t *)(tx_buffer + MAC_HEADER_SIZE_BYTES);
data_block = (uint16_t*)(tx_buffer + MAC_HEADER_SIZE_BYTES + sizeof_IF4p5_header_t);
gen_IF4p5_ul_header(ul_header, frame, subframe);
} else {
packet_header = (IF4p5_header_t *)(tx_buffer);
data_block = (uint16_t*)(tx_buffer + sizeof_IF4p5_header_t);
}
gen_IF4p5_ul_header(packet_header, frame, subframe);
for (symbol_id=0; symbol_id<fp->symbols_per_tti; symbol_id++) {
......@@ -116,8 +128,8 @@ void send_IF4p5(PHY_VARS_eNB *eNB, int frame, int subframe, uint16_t packet_type
data_block[element_id+db_halflength] = ((uint16_t) lin2alaw[*i]) | (lin2alaw[*(i+1)]<<8);
}
ul_header->frame_status &= ~(0x000f<<26);
ul_header->frame_status |= (symbol_id&0x000f)<<26;
packet_header->frame_status &= ~(0x000f<<26);
packet_header->frame_status |= (symbol_id&0x000f)<<26;
if ((eNB->ifdevice.trx_write_func(&eNB->ifdevice,
symbol_id,
......@@ -134,15 +146,24 @@ void send_IF4p5(PHY_VARS_eNB *eNB, int frame, int subframe, uint16_t packet_type
} else if (packet_type == IF4p5_PRACH) {
// FIX: hard coded prach samples length
db_fulllength = 840*2;
IF4p5_header_t *prach_header = (IF4p5_header_t *)(tx_buffer + MAC_HEADER_SIZE_BYTES);
if (eth->flags == ETH_RAW_IF4p5_MODE) {
packet_header = (IF4p5_header_t *)(tx_buffer + MAC_HEADER_SIZE_BYTES);
data_block = (uint16_t*)(tx_buffer + MAC_HEADER_SIZE_BYTES + sizeof_IF4p5_header_t);
} else {
packet_header = (IF4p5_header_t *)(tx_buffer);
data_block = (uint16_t*)(tx_buffer + sizeof_IF4p5_header_t);
}
gen_IF4p5_prach_header(packet_header, frame, subframe);
gen_IF4p5_prach_header(prach_header, frame, subframe);
if (eth->flags == ETH_RAW_IF4p5_MODE) {
memcpy((int16_t*)(tx_buffer + MAC_HEADER_SIZE_BYTES + sizeof_IF4p5_header_t),
(&rxsigF[0][k]),
db_fulllength*sizeof(int16_t));
} else {
memcpy((int16_t*)(tx_buffer + sizeof_IF4p5_header_t),
(&rxsigF[0][k]),
db_fulllength*sizeof(int16_t));
}
if ((eNB->ifdevice.trx_write_func(&eNB->ifdevice,
symbol_id,
......@@ -171,6 +192,7 @@ void recv_IF4p5(PHY_VARS_eNB *eNB, int *frame, int *subframe, uint16_t *packet_t
uint16_t element_id;
uint16_t db_fulllength, db_halflength;
int slotoffsetF=0, blockoffsetF=0;
eth_state_t *eth = (eth_state_t*) (eNB->ifdevice.priv);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_RECV_IF4, 1 );
......@@ -192,11 +214,17 @@ void recv_IF4p5(PHY_VARS_eNB *eNB, int *frame, int *subframe, uint16_t *packet_t
perror("ETHERNET read");
}
if (eth->flags == ETH_RAW_IF4p5_MODE) {
packet_header = (IF4p5_header_t*) (rx_buffer+MAC_HEADER_SIZE_BYTES);
data_block = (uint16_t*) (rx_buffer+MAC_HEADER_SIZE_BYTES+sizeof_IF4p5_header_t);
} else {
packet_header = (IF4p5_header_t*) (rx_buffer);
data_block = (uint16_t*) (rx_buffer+sizeof_IF4p5_header_t);
}
*frame = ((packet_header->frame_status)>>6)&0xffff;
*subframe = ((packet_header->frame_status)>>22)&0x000f;
*packet_type = packet_header->sub_type;
if (*packet_type == IF4p5_PDLFFT) {
......@@ -235,9 +263,15 @@ void recv_IF4p5(PHY_VARS_eNB *eNB, int *frame, int *subframe, uint16_t *packet_t
// FIX: hard coded prach samples length
db_fulllength = 840*2;
if (eth->flags == ETH_RAW_IF4p5_MODE) {
memcpy((&rxsigF[0][0]),
(int16_t*) (rx_buffer+MAC_HEADER_SIZE_BYTES+sizeof_IF4p5_header_t),
db_fulllength*sizeof(int16_t));
} else {
memcpy((&rxsigF[0][0]),
(int16_t*) (rx_buffer+sizeof_IF4p5_header_t),
db_fulllength*sizeof(int16_t));
}
} else {
AssertFatal(1==0, "recv_IF4p5 - Unknown packet_type %x", *packet_type);
......@@ -290,6 +324,12 @@ void gen_IF4p5_prach_header(IF4p5_header_t *prach_packet, int frame, int subfram
void malloc_IF4p5_buffer(PHY_VARS_eNB *eNB) {
// Keep the size large enough
eth_state_t *eth = (eth_state_t*) (eNB->ifdevice.priv);
if (eth->flags == ETH_RAW_IF4p5_MODE) {
eNB->ifbuffer.tx = malloc(RAW_IF4p5_PRACH_SIZE_BYTES);
eNB->ifbuffer.rx = malloc(RAW_IF4p5_PRACH_SIZE_BYTES);
} else {
eNB->ifbuffer.tx = malloc(UDP_IF4p5_PRACH_SIZE_BYTES);
eNB->ifbuffer.rx = malloc(UDP_IF4p5_PRACH_SIZE_BYTES);
}
}
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