C++ (Cpp) filesource_init Examples

Example #1

File: pdcch_file_test.c Project: borisov-r/libLTE

int base_init() {
  int i;

  if (filesource_init(&fsrc, input_file_name, COMPLEX_FLOAT_BIN)) {
    fprintf(stderr, "Error opening file %s\n", input_file_name);
    exit(-1);
  }

  flen = 2 * (SLOT_LEN(lte_symbol_sz(cell.nof_prb)));

  input_buffer = malloc(flen * sizeof(cf_t));
  if (!input_buffer) {
    perror("malloc");
    exit(-1);
  }

  fft_buffer = malloc(SF_LEN_RE(cell.nof_prb, cell.cp) * sizeof(cf_t));
  if (!fft_buffer) {
    perror("malloc");
    return -1;
  }

  for (i=0;i<MAX_PORTS;i++) {
    ce[i] = malloc(SF_LEN_RE(cell.nof_prb, cell.cp) * sizeof(cf_t));
    if (!ce[i]) {
      perror("malloc");
      return -1;
    }
  }

  if (chest_dl_init(&chest, cell)) {
    fprintf(stderr, "Error initializing equalizer\n");
    return -1;
  }

  if (lte_fft_init(&fft, cell.cp, cell.nof_prb)) {
    fprintf(stderr, "Error initializing FFT\n");
    return -1;
  }

  if (regs_init(&regs, cell)) {
    fprintf(stderr, "Error initiating regs\n");
    return -1;
  }

  if (regs_set_cfi(&regs, cfi)) {
    fprintf(stderr, "Error setting CFI %d\n", cfi);
    return -1;
  }
  if (pdcch_init(&pdcch, &regs, cell)) {
    fprintf(stderr, "Error creating PDCCH object\n");
    exit(-1);
  }
  
  DEBUG("Memory init OK\n",0);
  return 0;
}

Example #2

File: pcfich_file_test.c Project: borisov-r/libLTE

int base_init() {
  int i;
  
  if (filesource_init(&fsrc, input_file_name, COMPLEX_FLOAT_BIN)) {
    fprintf(stderr, "Error opening file %s\n", input_file_name);
    exit(-1);
  }

  if (matlab_file_name) {
    fmatlab = fopen(matlab_file_name, "w");
    if (!fmatlab) {
      perror("fopen");
      return -1;
    }
  } else {
    fmatlab = NULL;
  }

  flen = SLOT_LEN(lte_symbol_sz(cell.nof_prb));

  input_buffer = malloc(flen * sizeof(cf_t));
  if (!input_buffer) {
    perror("malloc");
    exit(-1);
  }

  fft_buffer = malloc(SF_LEN_RE(cell.nof_prb, cell.cp) * sizeof(cf_t));
  if (!fft_buffer) {
    perror("malloc");
    return -1;
  }

  for (i=0;i<MAX_PORTS;i++) {
    ce[i] = malloc(SF_LEN_RE(cell.nof_prb, cell.cp) * sizeof(cf_t));
    if (!ce[i]) {
      perror("malloc");
      return -1;
    }
  }
  
  if (chest_dl_init(&chest, cell)) {
    fprintf(stderr, "Error initializing equalizer\n");
    return -1;
  }

  if (lte_fft_init(&fft, cell.cp, cell.nof_prb)) {
    fprintf(stderr, "Error initializing FFT\n");
    return -1;
  }

  if (regs_init(&regs, cell)) {
    fprintf(stderr, "Error initiating REGs\n");
    return -1;
  }

  if (pcfich_init(&pcfich, &regs, cell)) {
    fprintf(stderr, "Error creating PBCH object\n");
    return -1;
  }

  DEBUG("Memory init OK\n",0);
  return 0;
}

Example #3

File: filesource.c Project: SPLURGE831/libLTE

int filesource_initialize(filesource_hl* h) {
  return filesource_init(&h->obj, h->init.file_name, h->init.data_type);
}

Example #4

File: pbch_file_test.c Project: wujunning2011/libLTE

int base_init() {
  int i;

  if (filesource_init(&fsrc, input_file_name, COMPLEX_FLOAT_BIN)) {
    fprintf(stderr, "Error opening file %s\n", input_file_name);
    exit(-1);
  }

  if (matlab_file_name) {
    fmatlab = fopen(matlab_file_name, "w");
    if (!fmatlab) {
      perror("fopen");
      return -1;
    }
  } else {
    fmatlab = NULL;
  }

  input_buffer = malloc(FLEN * sizeof(cf_t));
  if (!input_buffer) {
    perror("malloc");
    exit(-1);
  }

  fft_buffer = malloc(2 * CP_NSYMB(cell.cp) * cell.nof_prb * RE_X_RB * sizeof(cf_t));
  if (!fft_buffer) {
    perror("malloc");
    return -1;
  }

  for (i=0;i<cell.nof_ports;i++) {
    ce[i] = malloc(2 * CP_NSYMB(cell.cp) * cell.nof_prb * RE_X_RB * sizeof(cf_t));
    if (!ce[i]) {
      perror("malloc");
      return -1;
    }
  }
  
  if (!lte_cell_isvalid(&cell)) {
    fprintf(stderr, "Invalid cell properties\n");
    return -1;
  }

  if (chest_init_LTEDL(&chest, cell)) {
    fprintf(stderr, "Error initializing equalizer\n");
    return -1;
  }

  if (lte_fft_init(&fft, cell.cp, cell.nof_prb)) {
    fprintf(stderr, "Error initializing FFT\n");
    return -1;
  }

  if (pbch_init(&pbch, cell)) {
    fprintf(stderr, "Error initiating PBCH\n");
    return -1;
  }

  DEBUG("Memory init OK\n",0);
  return 0;
}

Example #5

File: pdsch_file_test.c Project: SPLURGE831/libLTE

int base_init() {
  int i;

  if (filesource_init(&fsrc, input_file_name, COMPLEX_FLOAT_BIN)) {
    fprintf(stderr, "Error opening file %s\n", input_file_name);
    exit(-1);
  }

  if (matlab_file_name) {
    fmatlab = fopen(matlab_file_name, "w");
    if (!fmatlab) {
      perror("fopen");
      return -1;
    }
  } else {
    fmatlab = NULL;
  }

  flen = 2 * (SLOT_LEN(lte_symbol_sz(cell.nof_prb)));

  input_buffer = malloc(flen * sizeof(cf_t));
  if (!input_buffer) {
    perror("malloc");
    exit(-1);
  }

  fft_buffer = malloc(2 * CP_NSYMB(cell.cp) * cell.nof_prb * RE_X_RB * sizeof(cf_t));
  if (!fft_buffer) {
    perror("malloc");
    return -1;
  }

  for (i=0;i<MAX_PORTS;i++) {
    ce[i] = malloc(2 * CP_NSYMB(cell.cp) * cell.nof_prb * RE_X_RB * sizeof(cf_t));
    if (!ce[i]) {
      perror("malloc");
      return -1;
    }
  }

  if (chest_init_LTEDL(&chest, cell)) {
    fprintf(stderr, "Error initializing equalizer\n");
    return -1;
  }

  if (lte_fft_init(&fft, cell.cp, cell.nof_prb)) {
    fprintf(stderr, "Error initializing FFT\n");
    return -1;
  }

  if (regs_init(&regs, R_1, PHICH_NORM, cell)) {
    fprintf(stderr, "Error initiating regs\n");
    return -1;
  }

  if (regs_set_cfi(&regs, cfi)) {
    fprintf(stderr, "Error setting CFI %d\n", cfi);
    return -1;
  }

  if (pdcch_init(&pdcch, &regs, cell)) {
    fprintf(stderr, "Error creating PDCCH object\n");
    exit(-1);
  }

  if (pdsch_init(&pdsch, cell)) {
    fprintf(stderr, "Error creating PDSCH object\n");
    exit(-1);
  }
  pdsch_set_rnti(&pdsch, rnti);
  
  if (pdsch_harq_init(&harq_process, &pdsch)) {
    fprintf(stderr, "Error initiating HARQ process\n");
    exit(-1);
  }

  DEBUG("Memory init OK\n",0);
  return 0;
}

Example #6

File: phich_file_test.c Project: KrishnaAdapa/libLTE

int base_init() {
	int i;

	if (filesource_init(&fsrc, input_file_name, COMPLEX_FLOAT_BIN)) {
		fprintf(stderr, "Error opening file %s\n", input_file_name);
		exit(-1);
	}

	if (matlab_file_name) {
		fmatlab = fopen(matlab_file_name, "w");
		if (!fmatlab) {
			perror("fopen");
			return -1;
		}
	} else {
		fmatlab = NULL;
	}

	flen = SLOT_LEN(lte_symbol_sz(nof_prb), cp);

	input_buffer = malloc(flen * sizeof(cf_t));
	if (!input_buffer) {
		perror("malloc");
		exit(-1);
	}

	fft_buffer = malloc(CP_NSYMB(cp) * nof_prb * RE_X_RB * sizeof(cf_t));
	if (!fft_buffer) {
		perror("malloc");
		return -1;
	}

	for (i=0;i<MAX_PORTS_CTRL;i++) {
		ce[i] = malloc(CP_NSYMB(cp) * nof_prb * RE_X_RB * sizeof(cf_t));
		if (!ce[i]) {
			perror("malloc");
			return -1;
		}
	}

	if (chest_init(&chest, LINEAR, cp, nof_prb, nof_ports)) {
		fprintf(stderr, "Error initializing equalizer\n");
		return -1;
	}

	if (chest_ref_LTEDL(&chest, cell_id)) {
		fprintf(stderr, "Error initializing reference signal\n");
		return -1;
	}

	if (lte_fft_init(&fft, cp, nof_prb)) {
		fprintf(stderr, "Error initializing FFT\n");
		return -1;
	}

	if (regs_init(&regs, cell_id, nof_prb, nof_ports, phich_res, phich_length, cp)) {
		fprintf(stderr, "Error initiating regs\n");
		return -1;
	}

	if (phich_init(&phich, &regs, cell_id, nof_prb, nof_ports, cp)) {
		fprintf(stderr, "Error creating PBCH object\n");
		return -1;
	}

	DEBUG("Memory init OK\n",0);
	return 0;
}

Example #7

File: iodev.c Project: SPLURGE831/libLTE

/* Setup USRP or input file */
int iodev_init(iodev_t *q, iodev_cfg_t *config, lte_cell_t *cell, pbch_mib_t *mib) {
  
  if (config->input_file_name) {
    
    mib->phich_resources = R_1; 
    mib->phich_length = PHICH_NORM;
    
    cell->id = config->cell_id_file;
    cell->cp = CPNORM; 
    cell->nof_ports = config->nof_ports_file; 
    cell->nof_prb = config->nof_prb_file; 

    if (filesource_init(&q->fsrc, config->input_file_name, COMPLEX_FLOAT_BIN)) {
      return LIBLTE_ERROR;
    }
    q->mode = FILESOURCE;
    int symbol_sz = lte_symbol_sz(cell->nof_prb);
    if (symbol_sz > 0) {
      q->sf_len = SF_LEN(symbol_sz);      
    } else {
      fprintf(stderr, "Invalid number of PRB %d\n", cell->nof_prb);
      return LIBLTE_ERROR; 
    }

    q->input_buffer_file = vec_malloc(q->sf_len * sizeof(cf_t));
    if (!q->input_buffer_file) {
      perror("malloc");
      return LIBLTE_ERROR; 
    }
    q->sf_idx = 9; 
    
  } else {
#ifndef DISABLE_UHD
    printf("Opening UHD device...\n");
    if (cuhd_open(config->uhd_args, &q->uhd)) {
      fprintf(stderr, "Error opening uhd\n");
      return LIBLTE_ERROR;
    }
    
    cuhd_set_rx_gain(q->uhd, config->uhd_gain);

    /* set receiver frequency */
    cuhd_set_rx_freq(q->uhd, (double) config->uhd_freq);

    cuhd_rx_wait_lo_locked(q->uhd);
    DEBUG("Set uhd_freq to %.3f MHz\n", (double ) config->uhd_freq);

    int n; 
    ue_celldetect_t cd;
    ue_celldetect_result_t found_cells[3];

    cf_t *buffer = vec_malloc(sizeof(cf_t) * 96000);
    if (!buffer) {
      perror("malloc");
      return LIBLTE_ERROR;
    }
    if (ue_celldetect_init(&cd)) {
      fprintf(stderr, "Error initiating UE cell detect\n");
      exit(-1);
    }
    n = find_cell(q->uhd, &cd, buffer, found_cells);
    if (n < 0) {
      fprintf(stderr, "Error searching cell\n");
      exit(-1);
    }

    int max_peak_cell = 0;
    float max_peak_value = -1.0;
    if (n > 0) {
      for (int i=0;i<3;i++) {
        if (found_cells[i].peak > max_peak_value) {
          max_peak_value = found_cells[i].peak;
          max_peak_cell = i;
        }
      }
      if (decode_pbch(q->uhd, buffer, &found_cells[max_peak_cell], 400, mib)) {
        fprintf(stderr, "Could not decode PBCH from CELL ID %d\n", found_cells[max_peak_cell].cell_id);
        return LIBLTE_ERROR;
      }
    } else {
      fprintf(stderr, "Could not find any cell in this frequency\n");
      return LIBLTE_ERROR;
    }
    
    free(buffer);
    cell->cp = found_cells[max_peak_cell].cp;
    cell->id = found_cells[max_peak_cell].cell_id;
    cell->nof_prb = mib->nof_prb;
    cell->nof_ports = mib->nof_ports; 
    
    /* set sampling frequency */
    int srate = lte_sampling_freq_hz(cell->nof_prb);
    if (srate != -1) {  
      cuhd_set_rx_srate(q->uhd, (double) srate);      
    } else {
      fprintf(stderr, "Invalid number of PRB %d\n", cell->nof_prb);
      return LIBLTE_ERROR;
    }

    DEBUG("Starting receiver...\n", 0);
    cuhd_start_rx_stream(q->uhd);
    
    if (ue_sync_init(&q->sframe, *cell, cuhd_recv_wrapper, q->uhd)) {
      fprintf(stderr, "Error initiating ue_sync\n");
      return LIBLTE_ERROR; 
    }

    /* Decodes the SSS signal during the tracking phase. Extra overhead, but makes sure we are in the correct subframe */  
    ue_sync_decode_sss_on_track(&q->sframe, true);

    // Here, the subframe length and input buffer is managed by ue_sync
    q->mode = UHD; 
  
#else
    printf("Error UHD not available. Select an input file\n");
    return LIBLTE_ERROR;
#endif
  }
  
  memcpy(&q->config, config, sizeof(iodev_cfg_t));
  
  return LIBLTE_SUCCESS;
}