Commit 3514b247 authored by Bilel's avatar Bilel

Fix UE-DFT segmentation fault: align rx_data buffer

parent 64cd0076
......@@ -50,6 +50,10 @@ int slot_fep_ul(LTE_DL_FRAME_PARMS *frame_parms,
void (*dft)(int16_t *,int16_t *, int);
int tmp_dft_in[2048] __attribute__ ((aligned (32))); // This is for misalignment issues for 6 and 15 PRBs
unsigned int frame_length_samples = frame_parms->samples_per_tti * 10;
unsigned int rx_offset;
switch (frame_parms->ofdm_symbol_size) {
case 128:
dft = dft128;
......@@ -103,28 +107,37 @@ int slot_fep_ul(LTE_DL_FRAME_PARMS *frame_parms,
#endif
for (aa=0; aa<frame_parms->nb_antennas_rx; aa++) {
rx_offset = slot_offset +nb_prefix_samples0;
if (l==0) {
dft(
#ifndef OFDMA_ULSCH
(int16_t *)&eNB_common_vars->rxdata_7_5kHz[eNB_id][aa][slot_offset +
nb_prefix_samples0],
#else
(int16_t *)&eNB_common_vars->rxdata[eNB_id][aa][((frame_parms->samples_per_tti>>1)*Ns) +
nb_prefix_samples0],
#endif
(int16_t *)&eNB_common_vars->rxdataF[eNB_id][aa][frame_parms->ofdm_symbol_size*symbol],1);
dft( (int16_t *)&eNB_common_vars->rxdata_7_5kHz[eNB_id][aa][rx_offset],
(int16_t *)&eNB_common_vars->rxdataF[eNB_id][aa][frame_parms->ofdm_symbol_size*symbol],
1
);
} else {
dft(
#ifndef OFDMA_ULSCH
(short *)&eNB_common_vars->rxdata_7_5kHz[eNB_id][aa][slot_offset +
#else
(short *)&eNB_common_vars->rxdata[eNB_id][aa][((frame_parms->samples_per_tti>>1)*Ns) +
#endif
(frame_parms->ofdm_symbol_size+nb_prefix_samples0+nb_prefix_samples) +
(frame_parms->ofdm_symbol_size+nb_prefix_samples)*(l-1)],
(short*)&eNB_common_vars->rxdataF[eNB_id][aa][frame_parms->ofdm_symbol_size*symbol],1);
rx_offset += (frame_parms->ofdm_symbol_size+nb_prefix_samples)*l;
if(rx_offset > (frame_length_samples - frame_parms->ofdm_symbol_size))
{
memcpy((void *)&eNB_common_vars->rxdata_7_5kHz[eNB_id][aa][frame_length_samples],
(void *)&eNB_common_vars->rxdata_7_5kHz[eNB_id][aa][0],
frame_parms->ofdm_symbol_size*sizeof(int));
}
if( (rx_offset & 7) != 0){
memcpy((void *)&tmp_dft_in,
(void *)&eNB_common_vars->rxdata_7_5kHz[eNB_id][aa][(rx_offset % frame_length_samples)],
frame_parms->ofdm_symbol_size*sizeof(int));
dft( (short *) tmp_dft_in,
(short*) &eNB_common_vars->rxdataF[eNB_id][aa][frame_parms->ofdm_symbol_size*symbol],
1
);
}
else{
dft( (short *)&eNB_common_vars->rxdata_7_5kHz[eNB_id][aa][rx_offset],
(short*)&eNB_common_vars->rxdataF[eNB_id][aa][frame_parms->ofdm_symbol_size*symbol],
1
);
}
}
}
......
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