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
}
}
}
