C++ (Cpp) srslte_crc_init Examples

Example #1

File: sch.c Project: okanakgunduz/srsLTE

int srslte_sch_init(srslte_sch_t *q) {
  int ret = SRSLTE_ERROR_INVALID_INPUTS;
  if (q) {    
    bzero(q, sizeof(srslte_sch_t));
    
    if (srslte_crc_init(&q->crc_tb, SRSLTE_LTE_CRC24A, 24)) {
      fprintf(stderr, "Error initiating CRC\n");
      goto clean;
    }
    if (srslte_crc_init(&q->crc_cb, SRSLTE_LTE_CRC24B, 24)) {
      fprintf(stderr, "Error initiating CRC\n");
      goto clean;
    }

    if (srslte_tcod_init(&q->encoder, SRSLTE_TCOD_MAX_LEN_CB)) {
      fprintf(stderr, "Error initiating Turbo Coder\n");
      goto clean;
    }
    if (srslte_tdec_init(&q->decoder, SRSLTE_TCOD_MAX_LEN_CB)) {
      fprintf(stderr, "Error initiating Turbo Decoder\n");
      goto clean;
    }

    // Allocate floats for reception (LLRs)
    q->cb_in = srslte_vec_malloc(sizeof(uint8_t) * SRSLTE_TCOD_MAX_LEN_CB);
    if (!q->cb_in) {
      goto clean;
    }
    q->cb_temp = srslte_vec_malloc(sizeof(uint8_t) * SRSLTE_TCOD_MAX_LEN_CB);
    if (!q->cb_temp) {
      goto clean;
    }
    
    q->cb_out = srslte_vec_malloc(sizeof(float) * (3 * SRSLTE_TCOD_MAX_LEN_CB + 12));
    if (!q->cb_out) {
      goto clean;
    }  
    if (srslte_uci_cqi_init(&q->uci_cqi)) {
      goto clean;
    }
    
    ret = SRSLTE_SUCCESS;
  }
clean: 
  if (ret == SRSLTE_ERROR) {
    srslte_sch_free(q);
  }
  return ret; 
}

Example #2

File: uci.c Project: srsLTE/srsLTE

int srslte_uci_cqi_init(srslte_uci_cqi_pusch_t *q) {
  if (srslte_crc_init(&q->crc, SRSLTE_LTE_CRC8, 8)) {
    return SRSLTE_ERROR;
  }
  int poly[3] = { 0x6D, 0x4F, 0x57 };
  if (srslte_viterbi_init(&q->viterbi, SRSLTE_VITERBI_37, poly, SRSLTE_UCI_MAX_CQI_LEN_PUSCH, true)) {
    return SRSLTE_ERROR;
  }
  
  cqi_pusch_pregen(q);
  
  return SRSLTE_SUCCESS;
}