static void v22bis_rx_status(void *user_data, int status) { endpoint_t *s; int bit_rate; int i; int len; #if defined(SPANDSP_USE_FIXED_POINT) complexi16_t *coeffs; #else complexf_t *coeffs; #endif /* Special conditions */ s = (endpoint_t *) user_data; printf("V.22bis rx %p status is %s (%d)\n", user_data, signal_status_to_str(status), status); switch (status) { case SIG_STATUS_TRAINING_SUCCEEDED: bit_rate = v22bis_get_current_bit_rate(s->v22bis); printf("Negotiated bit rate: %d\n", bit_rate); if ((len = v22bis_rx_equalizer_state(s->v22bis, &coeffs))) { printf("Equalizer:\n"); for (i = 0; i < len; i++) #if defined(SPANDSP_USE_FIXED_POINT) printf("%3d (%15.5f, %15.5f)\n", i, coeffs[i].re/V22BIS_CONSTELLATION_SCALING_FACTOR, coeffs[i].im/V22BIS_CONSTELLATION_SCALING_FACTOR); #else printf("%3d (%15.5f, %15.5f) -> %15.5f\n", i, coeffs[i].re, coeffs[i].im, powerf(&coeffs[i])); #endif } break; } }
static void v22bis_putbit(void *user_data, int bit) { v22bis_state_t *s; int i; int len; complexf_t *coeffs; s = (v22bis_state_t *) user_data; if (bit < 0) { /* Special conditions */ switch (bit) { case PUTBIT_TRAINING_FAILED: printf("Training failed\n"); break; case PUTBIT_TRAINING_SUCCEEDED: printf("Training succeeded\n"); len = v22bis_rx_equalizer_state(s, &coeffs); printf("Equalizer:\n"); for (i = 0; i < len; i++) printf("%3d (%15.5f, %15.5f) -> %15.5f\n", i, coeffs[i].re, coeffs[i].im, powerf(&coeffs[i])); break; case PUTBIT_CARRIER_UP: printf("Carrier up\n"); break; case PUTBIT_CARRIER_DOWN: printf("Carrier down\n"); break; default: printf("Eh!\n"); break; } return; } if (bit != tx_buf[rx_ptr]) { printf("Rx bit %d - %d\n", rx_bits, bit); rx_bad_bits++; } rx_ptr++; if (rx_ptr > 1000) rx_ptr = 0; rx_bits++; if ((rx_bits % 100000) == 0) { printf("%d bits received, %d bad bits\r", rx_bits, rx_bad_bits); fflush(stdout); } }
static void qam_report(void *user_data, const complexf_t *constel, const complexf_t *target, int symbol) { int i; int len; complexf_t *coeffs; float fpower; struct qam_report_control_s *s; s = (struct qam_report_control_s *) user_data; if (constel) { #if defined(ENABLE_GUI) if (use_gui) { qam_monitor_update_constel(s->qam_monitor, constel); qam_monitor_update_carrier_tracking(s->qam_monitor, v22bis_rx_carrier_frequency(s->s)); qam_monitor_update_symbol_tracking(s->qam_monitor, v22bis_rx_symbol_timing_correction(s->s)); } #endif fpower = (constel->re - target->re)*(constel->re - target->re) + (constel->im - target->im)*(constel->im - target->im); s->smooth_power = 0.95*s->smooth_power + 0.05*fpower; printf("%8d [%8.4f, %8.4f] [%8.4f, %8.4f] %8.4f %8.4f\n", s->symbol_no, constel->re, constel->im, target->re, target->im, fpower, s->smooth_power); s->symbol_no++; } else { printf("Gardner step %d\n", symbol); len = v22bis_rx_equalizer_state(s->s, &coeffs); printf("Equalizer A:\n"); for (i = 0; i < len; i++) printf("%3d (%15.5f, %15.5f) -> %15.5f\n", i, coeffs[i].re, coeffs[i].im, powerf(&coeffs[i])); #if defined(ENABLE_GUI) if (use_gui) qam_monitor_update_equalizer(s->qam_monitor, coeffs, len); #endif } }
static void qam_report(void *user_data, const complexf_t *constel, const complexf_t *target, int symbol) #endif { int i; int len; #if defined(SPANDSP_USE_FIXED_POINT) complexi16_t *coeffs; #else complexf_t *coeffs; #endif complexf_t constel_point; complexf_t target_point; float fpower; endpoint_t *s; s = (endpoint_t *) user_data; if (constel) { constel_point.re = constel->re/V22BIS_CONSTELLATION_SCALING_FACTOR; constel_point.im = constel->im/V22BIS_CONSTELLATION_SCALING_FACTOR; target_point.re = target->re/V22BIS_CONSTELLATION_SCALING_FACTOR; target_point.im = target->im/V22BIS_CONSTELLATION_SCALING_FACTOR; #if defined(ENABLE_GUI) if (use_gui) { qam_monitor_update_constel(s->qam_monitor, &constel_point); qam_monitor_update_carrier_tracking(s->qam_monitor, v22bis_rx_carrier_frequency(s->v22bis)); qam_monitor_update_symbol_tracking(s->qam_monitor, v22bis_rx_symbol_timing_correction(s->v22bis)); } #endif fpower = (constel->re - target->re)*(constel->re - target->re) + (constel->im - target->im)*(constel->im - target->im); s->smooth_power = 0.95f*s->smooth_power + 0.05f*fpower; printf("%8d [%8.4f, %8.4f] [%8.4f, %8.4f] %2x %8.4f %8.4f %8.4f\n", s->symbol_no, constel_point.re, constel_point.im, target_point.re, target_point.im, symbol, fpower, s->smooth_power, v22bis_rx_signal_power(s->v22bis)); s->symbol_no++; } else { printf("Gardner step %d\n", symbol); if ((len = v22bis_rx_equalizer_state(s->v22bis, &coeffs))) { printf("Equalizer A:\n"); for (i = 0; i < len; i++) #if defined(SPANDSP_USE_FIXED_POINT) printf("%3d (%15.5f, %15.5f)\n", i, coeffs[i].re/V22BIS_CONSTELLATION_SCALING_FACTOR, coeffs[i].im/V22BIS_CONSTELLATION_SCALING_FACTOR); #else printf("%3d (%15.5f, %15.5f) -> %15.5f\n", i, coeffs[i].re, coeffs[i].im, powerf(&coeffs[i])); #endif #if defined(ENABLE_GUI) if (use_gui) { #if defined(SPANDSP_USE_FIXED_POINT) qam_monitor_update_int_equalizer(s->qam_monitor, coeffs, len); #else qam_monitor_update_equalizer(s->qam_monitor, coeffs, len); #endif } #endif } } }