Cedric Roux
56c66c09aa
Pre-ci test passed git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4000 818b1a75-f10b-46b9-bf7c-635c3b92a50f
173 lines
5.4 KiB
C
173 lines
5.4 KiB
C
#include <string.h>
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#include "PHY/types.h"
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#include "PHY/defs.h"
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#include "PHY/extern.h"
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#ifdef OPENAIR_LTE
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#include "PHY/LTE_TRANSPORT/defs.h"
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#endif
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void openair_generate_ofdm(TX_VARS *TX_vars,char format,unsigned short freq_alloc,char *pdu) {
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unsigned int i,l;
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unsigned char level;
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#ifdef OPENAIR_LTE
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mod_sym_t **txdataF;
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unsigned char pbch_pdu[6];
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unsigned int rv;
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#endif
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switch (format) {
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#ifndef OPENAIR_LTE
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case 0 : // generate CHSCH + CHBCH (10 symbols out of 64)
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printf("Generate OFDM: CHSCH0,CHSCH1 + CHBCH\n");
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phy_generate_chbch(1,0,NB_ANTENNAS_TX,pdu);
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break;
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case 1: // generate all SCH 0 repeated in frame (64 symbols)
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printf("Generate OFDM: SCH (symbols 0..63)\n");
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for (i=0;i<NUMBER_OF_SYMBOLS_PER_FRAME;i+=3)
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phy_generate_sch(0,0,i,freq_alloc,0,NB_ANTENNAS_TX);
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break;
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case 2: // generate all CHSCH repeated in frame (64 symbols)
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printf("Generate OFDM: CHSCH0 (symbols 0..63)\n");
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phy_generate_chbch(1,0,NB_ANTENNAS_TX,pdu);
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for (i=1;i<NUMBER_OF_SYMBOLS_PER_FRAME;i++)
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memcpy((void *)&TX_vars->TX_DMA_BUFFER[i*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES_NO_PREFIX*2],
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(void *)&TX_vars->TX_DMA_BUFFER[0],
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OFDM_SYMBOL_SIZE_SAMPLES_NO_PREFIX*2);
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break;
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#else
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case 3:
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/*
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lte_ue_common_vars = &(PHY_vars->lte_ue_common_vars);
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lte_ue_dlsch_vars = &(PHY_vars->lte_ue_dlsch_vars[0]);
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lte_ue_pbch_vars = &(PHY_vars->lte_ue_pbch_vars[0]);
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*/
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lte_eNB_common_vars = &PHY_vars->lte_eNB_common_vars;
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lte_eNB_ulsch_vars = &(PHY_vars->lte_eNB_ulsch_vars[0]);
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phy_init_top(NB_ANTENNAS_TX);
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TX_vars->TX_DMA_BUFFER[0] = (mod_sym_t *)TX_DMA_BUFFER[0][0];
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TX_vars->TX_DMA_BUFFER[1] = (mod_sym_t *)TX_DMA_BUFFER[0][1];
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lte_frame_parms->twiddle_fft = twiddle_fft;
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lte_frame_parms->twiddle_ifft = twiddle_ifft;
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lte_frame_parms->rev = rev;
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lte_gold(lte_frame_parms);
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phy_init_lte_eNB(lte_frame_parms, lte_eNB_common_vars, lte_eNB_ulsch_vars);
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generate_pss(lte_eNB_common_vars->txdataF[0],
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256,
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lte_frame_parms,
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0,
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5,
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0);
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for (i=0; i<20; i++)
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generate_pilots_slot(lte_eNB_common_vars->txdataF[0],
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256,
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lte_frame_parms,
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0,
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i);
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for (i=0;i<6;i++)
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pbch_pdu[i] = i;
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generate_pbch(lte_eNB_common_vars->txdataF[0],
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256,
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lte_frame_parms,
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pbch_pdu);
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#ifdef IFFT_FPGA
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write_output("pilotsF.m","rsF",lte_eNB_common_vars->txdataF[0],12*lte_frame_parms->N_RB_DL*12,1,4);
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#else
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write_output("pilotsF.m","rsF",lte_eNB_common_vars->txdataF[0],lte_frame_parms->ofdm_symbol_size,1,1);
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#endif
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#ifndef IFFT_FPGA
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PHY_ofdm_mod(lte_eNB_common_vars->txdataF[0], // input
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lte_eNB_common_vars->txdata[0], // output
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lte_frame_parms->log2_symbol_size, // log2_fft_size
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12*LTE_NUMBER_OF_SUBFRAMES_PER_FRAME, // number of symbols
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lte_frame_parms->nb_prefix_samples, // number of prefix samples
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lte_frame_parms->twiddle_ifft, // IFFT twiddle factors
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lte_frame_parms->rev, // bit-reversal permutation
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NONE);
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PHY_ofdm_mod(lte_eNB_common_vars->txdataF[1], // input
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lte_eNB_common_vars->txdata[1], // output
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lte_frame_parms->log2_symbol_size, // log2_fft_size
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12*LTE_NUMBER_OF_SUBFRAMES_PER_FRAME, // number of symbols
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lte_frame_parms->nb_prefix_samples, // number of prefix samples
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lte_frame_parms->twiddle_ifft, // IFFT twiddle factors
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lte_frame_parms->rev, // bit-reversal permutation
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NONE);
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//write_output("pss.m","pss0", PHY_vars->tx_vars[0].TX_DMA_BUFFER,FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX,1,1);
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write_output("pss.m","pss0", TX_vars->TX_DMA_BUFFER[0],FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX,1,5);
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free(txdataF[0]);
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free(txdataF[1]);
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#endif //IFFT_FPGA
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free(txdataF);
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break;
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case 4:
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phy_init_top(2);
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printf("TX_DMA_BUFFER[0] = %p, TX_DMA_BUFFER[1] = %p\n",
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TX_DMA_BUFFER[0][0],TX_DMA_BUFFER[0][1]);
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TX_vars->TX_DMA_BUFFER[0] = (mod_sym_t *)TX_DMA_BUFFER[0][0];
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TX_vars->TX_DMA_BUFFER[1] = (mod_sym_t *)TX_DMA_BUFFER[0][1];
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for (l=1;l<120;l++) {
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for (i=0;i<75;i+=3) {
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rv = ptaus();
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rv = rv & 0x03030303;
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((unsigned char*)&rv)[0] = ((unsigned char*)&rv)[0]+1;
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((unsigned char*)&rv)[1] = ((unsigned char*)&rv)[1]+1;
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((unsigned char*)&rv)[2] = ((unsigned char*)&rv)[2]+1;
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((unsigned char*)&rv)[3] = ((unsigned char*)&rv)[3]+1;
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((unsigned int *)TX_vars->TX_DMA_BUFFER[0])[l*75+i] = rv;
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((unsigned int *)TX_vars->TX_DMA_BUFFER[1])[l*75+i] = rv;
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rv = ptaus();
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rv = rv & 0x03030303;
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((unsigned char*)&rv)[0] = ((unsigned char*)&rv)[0]+1;
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((unsigned char*)&rv)[1] = ((unsigned char*)&rv)[1]+1;
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((unsigned char*)&rv)[2] = ((unsigned char*)&rv)[2]+1;
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((unsigned char*)&rv)[3] = ((unsigned char*)&rv)[3]+1;
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((unsigned int *)TX_vars->TX_DMA_BUFFER[0])[l*75+i+1] = rv;
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((unsigned int *)TX_vars->TX_DMA_BUFFER[1])[l*75+i+1] = rv;
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rv = ptaus();
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rv = rv & 0x03030303;
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((unsigned char*)&rv)[0] = ((unsigned char*)&rv)[0]+1;
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((unsigned char*)&rv)[1] = ((unsigned char*)&rv)[1]+1;
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((unsigned char*)&rv)[2] = ((unsigned char*)&rv)[2]+1;
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((unsigned char*)&rv)[3] = ((unsigned char*)&rv)[3]+1;
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((unsigned int *)TX_vars->TX_DMA_BUFFER[0])[l*75+i+2] = rv;
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((unsigned int *)TX_vars->TX_DMA_BUFFER[1])[l*75+i+2] = rv;
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}
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}
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#endif // OPENAIR_LTE
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default:
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break;
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}
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}
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