/
radio_management.c
1765 lines (1529 loc) · 59.2 KB
/
radio_management.c
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/* -*- mode: c; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4; coding: utf-8 -*- */
/************************************************************************************
** **
** UHSDR **
** a powerful firmware for STM32 based SDR transceivers **
** **
**---------------------------------------------------------------------------------**
** **
** File name: **
** Description: **
** Last Modified: **
** Licence: GNU GPLv3 **
************************************************************************************/
// Common
#include "radio_management.h"
#include "profiling.h"
#include "adc.h"
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <soft_tcxo.h>
#include "uhsdr_hw_i2c.h"
#include "freedv_uhsdr.h"
// SI570 control
#include "osc_interface.h"
#include "codec.h"
#include "audio_driver.h"
#include "audio_management.h"
#include "cat_driver.h"
#include "ui_spectrum.h"
#include "ui_configuration.h"
#include "ui_menu.h" // for CONFIG_160M_FULL_POWER_ADJUST and Co.
#include "config_storage.h"
#include "cw_gen.h"
#include "cw_decoder.h"
#include "psk.h"
#include "rtty.h"
#include "uhsdr_digi_buffer.h"
#include "audio_nr.h"
#define SWR_SAMPLES_SKP 1 //5000
#define SWR_SAMPLES_CNT 5//10
#define SWR_ADC_FULL_SCALE 4095 // full scale of A/D converter (4095 = 10 bits)
#define SWR_ADC_VOLT_REFERENCE 3.3 // NOMINAL A/D reference voltage. The PRECISE value is calibrated by a menu item! (Probably "FWD/REV ADC Cal.")
//
// coefficients for very low power (<75 milliwatt) power levels. Do NOT use this above approx. 0.07 volts input!
//
#define LOW_RF_PWR_COEFF_A -0.0338205168744131 // constant (offset)
#define LOW_RF_PWR_COEFF_B 5.02584652062682 // "b" coefficient (for x)
#define LOW_RF_PWR_COEFF_C -106.610490958242 // "c" coefficient (for x^2)
#define LOW_RF_PWR_COEFF_D 853.156505329744 // "d" coefficient (for x^3)
//
// coefficients for higher power levels (>50 milliwatts). This is actually good down to 25 milliwatts or so.
//
#define HIGH_RF_PWR_COEFF_A 0.01209 //0.0120972709513557 // constant (offset)
#define HIGH_RF_PWR_COEFF_B 0.8334 //0.833438917330908 // "b" coefficient (for x)
#define HIGH_RF_PWR_COEFF_C 1.569 //1.56930042559198 // "c" coefficient (for x^2)
#define LOW_POWER_CALC_THRESHOLD 0.05 // voltage from sensor below which we use the "low power" calculations, above
// SWR/Power meter
SWRMeter swrm;
// ------------------------------------------------
// Frequency public
DialFrequency df;
//
// Bands definition
//
//
//
// Frequency limits for filters, in Hz, for bandpass filter selection - MODIFY AT YOUR OWN RISK!
//
#define BAND_FILTER_UPPER_160 2500000 // Upper limit for 160 meter filter
#define BAND_FILTER_UPPER_80 4250000 // Upper limit for 80 meter filter
#define BAND_FILTER_UPPER_40 8000000 // Upper limit for 40/60 meter filter
#define BAND_FILTER_UPPER_20 16000000 // Upper limit for 20/30 meter filter
#define BAND_FILTER_UPPER_10 32000000 // Upper limit for 10 meter filter
#define BAND_FILTER_UPPER_6 40000000 // Upper limit for 6 meter filter
#define BAND_FILTER_UPPER_4 70000000 // Upper limit for 4 meter filter
const BandInfo bandInfo[] =
{
{ .tune = 3500000, .size = 500000, .name = "80m"} , // Region 2
{ .tune = 5250000, .size = 200000, .name = "60m"} , // should cover all regions
{ .tune = 7000000, .size = 300000, .name = "40m"} , // Region 2
{ .tune = 10100000, .size = 50000, .name = "30m"} ,
{ .tune = 14000000, .size = 350000, .name = "20m"} ,
{ .tune = 18068000, .size = 100000, .name = "17m"} ,
{ .tune = 21000000, .size = 450000, .name = "15m"} ,
{ .tune = 24890000, .size = 100000, .name = "12m"} ,
{ .tune = 28000000, .size = 1700000, .name = "10m"} ,
{ .tune = 50000000, .size = 2000000, .name = "6m"} , // Region 2
{ .tune = 70000000, .size = 500000, .name = "4m"} ,
{ .tune = 144000000, .size = 2000000, .name = "2m"} , // Region 1
{ .tune = 430000000, .size = 10000000, .name = "70cm"} , // Region 1
{ .tune = 1240000000, .size = 60000000, .name = "23cm"} , // Region 1
{ .tune = 135.7000, .size = 2.1000, .name = "2200m"} , // Region 1
{ .tune = 472000, .size = 7000, .name = "630m"} , // Region 1
{ .tune = 1810000, .size = 190000, .name = "160m"} ,
{ .tune = 0, .size = 0, .name = "Gen"} ,
};
// this structure MUST match the order of entries in power_level_t !
static const power_level_desc_t mchf_rf_power_levels[] =
{
{ .id = PA_LEVEL_FULL, .name = "FULL", .power_factor = 1.0 , .mW = 0, }, // we use 0 to indicate max power
{ .id = PA_LEVEL_5W, .name = "5W" , .power_factor = 1.0 , .mW = 5000, },
{ .id = PA_LEVEL_2W, .name = "2W" , .power_factor = 0.6324, .mW = 2000, },
{ .id = PA_LEVEL_1W, .name = "1W" , .power_factor = 0.447 , .mW = 1000, },
{ .id = PA_LEVEL_0_5W, .name = "0.5W" , .power_factor = 0.316 , .mW = 500, },
};
const pa_power_levels_info_t mchf_power_levelsInfo =
{
.levels = mchf_rf_power_levels,
.count = sizeof(mchf_rf_power_levels)/sizeof(*mchf_rf_power_levels),
};
typedef struct
{
char* name;
float32_t reference_power;
int32_t max_freq;
int32_t min_freq;
int32_t max_am_power;
} pa_info_t;
static const pa_info_t mchf_pa =
{
.name = "mcHF PA",
.reference_power = 5000.0,
.max_freq = 32000000,
.min_freq = 1800000,
.max_am_power = 2000.0,
};
// The following descriptor table has to be in the order of the enum digital_modes_t in radio_management.h
// This table is stored in flash (due to const) and cannot be written to
// for operational data per mode [r/w], use a different table with order of modes
const digital_mode_desc_t digimodes[DigitalMode_Num_Modes] =
{
{ "DIGITAL" , true },
#ifdef USE_FREEDV
{ "FreeDV" , true },
#endif
{ "RTTY" , true },
{ "BPSK" , true },
};
/**
* @brief returns the "real" frequency translation mode for a given transceiver state. This may differ from the configured one due to modulation demands
*
*/
uint32_t RadioManagement_GetRealFreqTranslationMode(uint32_t txrx_mode, uint32_t dmod_mode, uint32_t iq_freq_mode)
{
uint32_t retval = iq_freq_mode;
if (dmod_mode == DEMOD_CW && txrx_mode == TRX_MODE_TX)
{
retval = FREQ_IQ_CONV_MODE_OFF;
}
return retval;
}
/**
* @brief permits to dis/enable a digital codec (or get back to analog)
*/
void RadioManagement_ChangeCodec(uint32_t codec, bool enableCodec)
{
// codec == 0 -> Analog Sound
// all other codecs -> digital codec
if (codec == 0)
{
ts.dvmode = false;
}
else
{
ts.dvmode = enableCodec;
}
ts.digital_mode = codec;
}
/**
* Returns the scaling which needs to be applied to the standard signal levl (which delivers the PA_REFERENCE_POWER)
* in order to output the request power.
* @param powerMw requested power in mW. mW =< 0.0 returns scale 1
* @return scaling (gain)
*/
float32_t RadioManagement_CalculatePowerFactorScale(float32_t powerMw)
{
float32_t retval = 1.0;
if (powerMw > 0)
{
retval = sqrtf(powerMw / mchf_pa.reference_power);
}
return retval;
}
/**
*
* Depends on globals: ts.pwr_adj, ts.power_level, df.tune_old, ts.flags2 & FLAGS2_LOW_BAND_BIAS_REDUCE
* Impacts globals: ts.tx_power_factor
* @param band
* @return true if the power factor value differs from previous
*/
static bool RadioManagement_SetBandPowerFactor(band_mode_t band, int32_t power)
{
float32_t pf_bandvalue; // used as a holder for percentage of power output scaling
// FIXME: This code needs fixing, the hack for TX Outside should at least reduce power factor for lower bands
if (band >= MAX_BANDS)
{
// TX outside bands **very dirty hack**
// FIXME: calculate based on 2 frequency points close the selected frequency, should be inter-/extrapolated
float32_t adj_min = ts.pwr_adj[ADJ_REF_PWR][BAND_MODE_80];
uint32_t freq_min = bandInfo[BAND_MODE_80].tune;
float32_t adj_max = ts.pwr_adj[ADJ_REF_PWR][BAND_MODE_10];
uint32_t freq_max = bandInfo[BAND_MODE_10].tune;
float32_t delta_f = (float32_t)df.tune_old - (float32_t)freq_min; // we must convert to a signed type
float32_t delta_points = freq_max - freq_min;
float32_t freq_mult = delta_f / delta_points;
pf_bandvalue = freq_mult * (adj_max - adj_min) + adj_min;
}
else
{
pf_bandvalue = ts.pwr_adj[power == 0?ADJ_FULL_POWER:ADJ_REF_PWR][band];
}
pf_bandvalue /= RadioManagement_IsPowerFactorReduce(df.tune_old)? 400: 100;
float32_t power_factor_scale = 1.0 ;
// now rescale to power levels below reference power (i.e for mcHF <5 watts) if necessary.
if (power != 0)
{
power_factor_scale = RadioManagement_CalculatePowerFactorScale(power);
}
float32_t power_factor = pf_bandvalue * power_factor_scale;
// limit hard limit for power factor since it otherwise may overdrive the PA section
const float32_t old_pf = ts.tx_power_factor;
ts.tx_power_factor =
(power_factor > TX_POWER_FACTOR_MAX_INTERNAL) ?
TX_POWER_FACTOR_MAX_INTERNAL : power_factor;
ts.power_modified |= (power_factor == 0 || ts.tx_power_factor != power_factor);
return ts.tx_power_factor != old_pf;
}
/**
* Is the currently active modulation / transceiver mode able to generate a side tone during transmit
* Can be called during RX and TX
*
* @return true if the selected modulation mode permits the use of a side tone
*/
bool RadioManagement_UsesTxSidetone()
{
return ts.dmod_mode == DEMOD_CW || is_demod_rtty() || is_demod_psk() || (ts.tune && !ts.iq_freq_mode);
}
/**
* @brief API Function, implements application logic for changing the power level including filter changes
*
*
* @param power_level The requested power level (as PA_LEVEL constants). Invalid values are not accepted
* @returns true if power level has been changed, false otherwise
*/
bool RadioManagement_SetPowerLevel(band_mode_t band, power_level_t power_level)
{
bool retval = false;
bool power_modified = false;
int32_t power = power_level < mchf_power_levelsInfo.count ? mchf_power_levelsInfo.levels[power_level].mW : -1;
if (power != -1)
{
if (band >= MAX_BANDS)
{
if(ts.flags1 & FLAGS1_TX_OUTSIDE_BANDS)
{
power = 50; // ~50 mW limit;
power_modified = true;
// I never will use this function (DF8OE)
}
else
{
power = 5; // 5mW, use very low value in case of wrong call to this function
power_modified = true;
}
}
if(ts.dmod_mode == DEMOD_AM) // in AM mode?
{
if(power > mchf_pa.max_am_power || power == 0) // yes, power over am limits?
{
power = mchf_pa.max_am_power; // force to keep am limits
power_modified = true;
}
}
else if(power > mchf_pa.reference_power)
{
power = 0; // 0 == full power
power_level = PA_LEVEL_FULL;
}
// Calculate TX power factor - see if power changed
bool pf_change = RadioManagement_SetBandPowerFactor(band, power);
if (pf_change == true || power != ts.power || ts.power_level != power_level || ts.power_modified != power_modified)
{
retval = true;
ts.power_level = power_level;
ts.power = power;
ts.power_modified = power_modified;
if (RadioManagement_UsesTxSidetone())
{
Codec_TxSidetoneSetgain(ts.txrx_mode);
}
}
}
return retval;
}
bool RadioManagement_Tune(bool tune)
{
bool retval = tune;
if(RadioManagement_IsTxDisabled() == false && (ts.dmod_mode != DEMOD_SAM))
{
if(tune)
{
if(ts.tune_power_level != PA_LEVEL_TUNE_KEEP_CURRENT)
{
ts.power_temp = ts.power_level; //store tx level and set tune level
ts.power_level = ts.tune_power_level;
}
RadioManagement_SwitchTxRx(TRX_MODE_TX,true);
// tune ON, this will also update the power to use our
// to our temporarily changed level
retval = (ts.txrx_mode == TRX_MODE_TX);
}
else
{
RadioManagement_SwitchTxRx(TRX_MODE_RX,true); // tune OFF
if(ts.tune_power_level != PA_LEVEL_TUNE_KEEP_CURRENT)
{
RadioManagement_SetPowerLevel(RadioManagement_GetBand(df.tune_new), ts.power_temp);
}
retval = (ts.txrx_mode == TRX_MODE_TX); // no longer tuning
}
}
else
{
retval = false; // no TUNE mode in AM or FM or with disabled TX!
}
return retval;
}
/**
* @returns offset of tuned frequency to dial frequency in CW mode, in Hz
*/
int32_t RadioManagement_GetCWDialOffset()
{
int32_t retval = 0;
switch(ts.cw_offset_mode)
{
case CW_OFFSET_USB_SHIFT: // Yes - USB?
case CW_OFFSET_LSB_SHIFT: // LSB?
case CW_OFFSET_AUTO_SHIFT: // Auto mode? Check flag
if(ts.cw_lsb)
{
retval += ts.cw_sidetone_freq; // it was LSB - raise by sidetone amount
}
else
{
retval -= ts.cw_sidetone_freq; // it was USB - lower by sidetone amount
}
}
return retval;
}
/**
* @brief returns true if the mode parameters tell us we will TX at zero if as opposed to offset frequency
*/
bool RadioManagement_IsTxAtZeroIF(uint8_t dmod_mode, uint8_t digital_mode)
{
return (
dmod_mode == DEMOD_CW ||
(dmod_mode == DEMOD_DIGI &&
(
#ifdef USE_FREEDV
digital_mode == DigitalMode_FreeDV
#else
false
#endif
|| is_demod_psk()
#ifdef USE_RTTY_PROCESSOR
|| is_demod_rtty()
#endif
)
)
);
}
uint32_t RadioManagement_Dial2TuneFrequency(const uint32_t dial_freq, uint8_t txrx_mode)
{
uint32_t tune_freq = dial_freq;
//
// Do "Icom" style frequency offset of the LO if in "CW OFFSET" mode. (Display freq. is also offset!)
if(ts.dmod_mode == DEMOD_CW) // In CW mode?
{
tune_freq += RadioManagement_GetCWDialOffset();
}
// Offset dial frequency if the RX/TX frequency translation is active and we are not transmitting in mode which
// does not use frequency translation, this permits to use the generated I or Q channel as audio sidetone
// that is right now RTTY, FreeDV, CW, BPSK
if(txrx_mode != TRX_MODE_TX || RadioManagement_IsTxAtZeroIF(ts.dmod_mode, ts.digital_mode) == false)
{
tune_freq += AudioDriver_GetTranslateFreq();
}
// Extra tuning actions
if(txrx_mode == TRX_MODE_RX)
{
tune_freq += (ts.rit_value*20); // Add RIT on receive
}
return tune_freq;
}
/**
* @brief switch off the PA Bias to mute HF output ( even if PTT is on )
* Using this method the PA will be effectively muted no matter what setting
* the main bias switch has (which directly connected to the PTT HW Signal)
* Used to suppress signal path reconfiguration noise during rx/tx and tx/rx switching
*/
void RadioManagement_DisablePaBias()
{
Board_SetPaBiasValue(0);
}
/**
* @brief recalculate and set the PA Bias according to requested value
*
* Please note that at the mcHF BIAS is only applied if the PTT HW Signal
* is active (which is controlled using MchfBoard_EnableTXSignalPath())
*/
void RadioManagement_SetPaBias()
{
uint32_t calc_var;
if((ts.pa_cw_bias) && (ts.dmod_mode == DEMOD_CW)) // is CW PA bias non-zero AND are we in CW mode?
{
calc_var = ts.pa_cw_bias; // use special CW-mode bias setting
}
else
{
calc_var = ts.pa_bias; // use "default" bias setting
}
calc_var = calc_var *2 + BIAS_OFFSET;
if(calc_var > 255)
{
calc_var = 255;
}
Board_SetPaBiasValue(calc_var);
}
bool RadioManagement_ChangeFrequency(bool force_update, uint32_t dial_freq,uint8_t txrx_mode)
{
// everything else uses main VFO frequency
// uint32_t tune_freq;
bool lo_change_pending = false;
// Calculate actual tune frequency
ts.tune_freq_req = RadioManagement_Dial2TuneFrequency(dial_freq, txrx_mode);
if((ts.tune_freq != ts.tune_freq_req) || (ts.refresh_freq_disp) || df.temp_factor_changed || force_update ) // did the frequency NOT change and display refresh NOT requested??
{
if(ts.sysclock-ts.last_tuning > 5 || ts.last_tuning == 0) // prevention for SI570 crash due too fast frequency changes
{
Oscillator_ResultCodes_t lo_prep_result = osc->prepareNextFrequency(ts.tune_freq_req, df.temp_factor);
// first check and mute output if a large step is to be done
if(osc->isNextStepLarge() == true) // did the tuning require that a large tuning step occur?
{
// 18 is a little more than 10ms (15 ==10ms) which is max for the Si570 to change the frequency
if (ts.audio_dac_muting_buffer_count < 18)
{
ts.audio_dac_muting_buffer_count = 18;
}
if (ts.audio_processor_input_mute_counter < 18)
{
ts.audio_processor_input_mute_counter = 18;
}
}
ts.last_tuning = ts.sysclock;
ts.last_lo_result = lo_prep_result;
Oscillator_ResultCodes_t lo_exec_result = OSC_TUNE_IMPOSSIBLE;
if (lo_prep_result != OSC_TUNE_IMPOSSIBLE)
{
// Set frequency
lo_exec_result = osc->changeToNextFrequency();
}
// if i2c error or verify error, there is a chance that we can fix that, so we mark this
// as NOT executed, in all other cases we assume the change has happened (but may prevent TX)
if (lo_exec_result != OSC_COMM_ERROR && lo_exec_result != OSC_ERROR_VERIFY)
{
df.temp_factor_changed = false;
ts.tune_freq = ts.tune_freq_req; // frequency change required - update change detector
// Save current freq
df.tune_old = dial_freq;
}
else
{
ts.last_lo_result = lo_exec_result;
}
if (ts.last_lo_result == OSC_OK || ts.last_lo_result == OSC_TUNE_LIMITED)
{
ts.tx_disable &= ~TX_DISABLE_OUTOFRANGE;
}
else
{
ts.tx_disable |= TX_DISABLE_OUTOFRANGE;
}
uint32_t tune_freq_real = ts.tune_freq;
RadioManagement_SetHWFiltersForFrequency(tune_freq_real); // check the filter status with the new frequency update
AudioManagement_CalcIqPhaseGainAdjust(tune_freq_real);
// Inform Spectrum Display code that a frequency change has happened
ts.dial_moved = 1;
}
else
{
lo_change_pending = true;
}
}
// successfully executed the change
return lo_change_pending == false;
}
/**
* @brief temporary muting of the receiver when making changes which may cause audible pops etc., unmuting happens some 10s of milliseconds automatically later
*
*/
void RadioManagement_MuteTemporarilyRxAudio()
{
// save us from the loud "POP" that will occur when we change bands
ts.audio_processor_input_mute_counter = 5 * 15;
ts.audio_dac_muting_buffer_count = 13 * 15;
}
Oscillator_ResultCodes_t RadioManagement_ValidateFrequencyForTX(uint32_t dial_freq)
{
// we check with the si570 code if the frequency is tunable, we do not tune to it.
return osc->prepareNextFrequency(RadioManagement_Dial2TuneFrequency(dial_freq, TRX_MODE_TX), df.temp_factor);
}
/**
* @brief returns the current LO Tune Frequency for TX
* @returns LO Frequency in Hz
*/
uint32_t RadioManagement_GetTXDialFrequency()
{
uint32_t retval;
if (ts.txrx_mode != TRX_MODE_TX)
{
if(is_splitmode()) // is SPLIT mode active and?
{
uint8_t vfo_tx;
if (is_vfo_b())
{
vfo_tx = VFO_A;
}
else
{
vfo_tx = VFO_B;
}
retval = vfo[vfo_tx].band[ts.band].dial_value; // load with VFO-A frequency
}
else
{
retval = df.tune_new;
}
}
else
{
retval = df.tune_new;
}
return retval;
}
/**
* @brief returns the current LO Dial Frequency for RX
* @returns LO Frequency in Hz
*/
uint32_t RadioManagement_GetRXDialFrequency()
{
uint32_t baseval;
if (ts.txrx_mode != TRX_MODE_RX)
{
if(is_splitmode()) // is SPLIT mode active?
{
uint8_t vfo_rx;
if (is_vfo_b())
{
vfo_rx = VFO_B;
}
else
{
vfo_rx = VFO_A;
}
baseval = vfo[vfo_rx].band[ts.band].dial_value; // load with VFO-A frequency
}
else
{
baseval = df.tune_new;
}
}
else
{
baseval = df.tune_new;
}
return baseval + (ts.rit_value*20);
}
// globals used:
// ts.trx_mode -> R / W
// ts.band -> R
// vfo[] -> r / w
// df.tune_new -> r
// ts.dmod_mode -> r
// ts.cw_text_entry -> r
// functions called:
// RadioManagement_ValidateFrequencyForTX
// RadioManagement_IsTxDisabled()
// ts.audio_dac_muting_buffer_count -> r/w
// ts.audio_dac_muting_flag = true; // let the audio being muted initially as long as we need it
// ads.agc_holder -> w
// ads.agc_val -> r
// RadioManagement_DisablePaBias(); // kill bias to mute the HF output quickly
// Board_RedLed(LED_STATE_ON); // TX
// Board_GreenLed(LED_STATE_OFF);
// Board_EnableTXSignalPath(true); // switch antenna to output and codec output to QSE mixer
// RadioManagement_ChangeFrequency(false,df.tune_new, txrx_mode_final);
// uint8_t tx_band = RadioManagement_GetBand(tune_new);
// RadioManagement_PowerLevelChange(tx_band,ts.power_level);
// RadioManagement_SetBandPowerFactor(tx_band);
// AudioManagement_SetSidetoneForDemodMode(ts.dmod_mode,txrx_mode_final == TRX_MODE_RX?false:tune_mode);
// Codec_SwitchTxRxMode(txrx_mode_final);
// RadioManagement_SetPaBias();
// ts.txrx_switch_audio_muting_timing -> r;
// ts.audio_processor_input_mute_counter -> w;
// ts.audio_dac_muting_buffer_count -> w
// ts.audio_dac_muting_flag -> w;
// ts.tx_audio_source -> r
// ts.power_level -> r
/**
* @brief check if all resources are available to switch tx/rx mode in an interrupt
* @return true if all resources are available to switch tx/rx mode in an interrupt
*/
static __IO bool radioManagement_SwitchTxRx_running;
/**
* This function should only return true if it is absolutely safe to switch between Tx and Rx in an interrupt. Better safe than sorry.
* @return true if we can switch because no code is running in a critical section
*/
bool RadioManagement_SwitchTxRx_Possible()
{
// we check all resources which may be locked by a user mode (non-interrupt activity)
return RadioManagement_TxRxSwitching_IsEnabled() && osc->readyForIrqCall() && Codec_ReadyForIrqCall() && radioManagement_SwitchTxRx_running == false;
}
void RadioManagement_SwitchTxRx(uint8_t txrx_mode, bool tune_mode)
{
radioManagement_SwitchTxRx_running = true;
uint32_t tune_new;
bool tx_ok = false;
bool tx_pa_disabled = false;
// ts.last_tuning = 0; // prevents transmitting on wrong frequency during "RX bk phases"
if(is_splitmode()) // is SPLIT mode active?
{
uint8_t vfo_tx,vfo_rx;
if (is_vfo_b())
{
vfo_rx = VFO_B;
vfo_tx = VFO_A;
}
else
{
vfo_rx = VFO_A;
vfo_tx = VFO_B;
}
if(txrx_mode == TRX_MODE_TX) // are we in TX mode?
{
if(ts.txrx_mode == TRX_MODE_RX) // did we want to enter TX mode?
{
vfo[vfo_rx].band[ts.band].dial_value = df.tune_new; // yes - save current RX frequency in RX VFO location
}
tune_new = vfo[vfo_tx].band[ts.band].dial_value; // load with TX VFO frequency
}
else // we are in RX mode
{
tune_new = vfo[vfo_rx].band[ts.band].dial_value; // load with RX VFO frequency
}
}
else
{
// we just take the current one if not in split mode
tune_new = df.tune_new;
}
if(txrx_mode == TRX_MODE_TX)
{
// FIXME: Not very robust code, make sure Validate always returns TUNE_IMPOSSIBLE in case of issues
tx_ok = RadioManagement_ValidateFrequencyForTX(tune_new) != OSC_TUNE_IMPOSSIBLE;
// this code handles the ts.tx_disable
// even if ts.tx_disble is set in CW and only in CW we still switch to TX
// but leave the PA disabled. This is for support of CW training right with the mcHF.
if (RadioManagement_IsTxDisabled() || ts.cw_text_entry)
{
if ((tx_ok == true && ts.dmod_mode == DEMOD_CW) || ts.cw_text_entry)
{
tx_pa_disabled = true;
}
else
{
// in any other case, it is not okay to transmit with ts.tx_disable == true
tx_ok = false;
}
}
if (is_demod_psk())
{
Psk_Modulator_PrepareTx();
}
}
uint8_t txrx_mode_final = tx_ok?txrx_mode:TRX_MODE_RX;
// only switch mode if tx was permitted or rx was requested
if (txrx_mode_final != ts.txrx_mode || txrx_mode_final == TRX_MODE_RX)
{
// there is in fact a switch happening
// which may cause audio issues
if (txrx_mode_final != ts.txrx_mode)
{
ts.audio_dac_muting_buffer_count = 2; // wait at least 2 buffer cycles
ts.audio_dac_muting_flag = true; // let the audio being muted initially as long as we need it
RadioManagement_DisablePaBias(); // kill bias to mute the HF output quickly
}
if(txrx_mode_final == TRX_MODE_TX)
{
// We mute the audio BEFORE we activate the PTT.
// This is necessary since U3 is switched the instant that we do so,
// rerouting audio paths and causing all sorts of disruption including CLICKs and squeaks.
Codec_PrepareTx(ts.txrx_mode); // 5ms
while (ts.audio_dac_muting_buffer_count >0)
{
// TODO: Find a better solution here
asm("nop"); // just wait a little for the silence to come out of the audio path
// this can take up to 1.2ms (time for processing two audio buffer dma requests
}
// this is here to allow CW training
// with ts.tx_disabled on nothing will be transmitted but you can hear the sidetone
if (tx_pa_disabled == false)
{
Board_RedLed(LED_STATE_ON); // TX
Board_GreenLed(LED_STATE_OFF);
Board_EnableTXSignalPath(true); // switch antenna to output and codec output to QSE mixer
}
}
df.tune_new = tune_new;
RadioManagement_ChangeFrequency(false,df.tune_new, txrx_mode_final);
// ts.audio_dac_muting_flag = true; // let the audio being muted initially as long as we need it
// there might have been a band change between the modes, make sure to have the power settings fitting the mode
if (txrx_mode_final == TRX_MODE_TX)
{
uint8_t tx_band = RadioManagement_GetBand(tune_new);
RadioManagement_SetPowerLevel(tx_band,ts.power_level);
}
AudioManagement_SetSidetoneForDemodMode(ts.dmod_mode,txrx_mode_final == TRX_MODE_RX?false:tune_mode);
// make sure the audio is set properly according to txrx and tune modes
if (txrx_mode_final == TRX_MODE_RX)
{
while (ts.audio_dac_muting_buffer_count >0)
{
// TODO: Find a better solution here
asm("nop"); // just wait a little for the silence to come out of the audio path
// this can take up to 1.2ms (time for processing two audio buffer dma requests
}
Board_EnableTXSignalPath(false); // switch antenna to input and codec output to lineout
Board_RedLed(LED_STATE_OFF); // TX led off
Board_GreenLed(LED_STATE_ON); // TX led off
ts.audio_dac_muting_flag = false; // unmute audio output
//CwGen_PrepareTx(); // make sure the keyer is set correctly for next round
// commented out as resetting now part of cw_gen state machine
}
if (ts.txrx_mode != txrx_mode_final)
{
Codec_SwitchTxRxMode(txrx_mode_final);
if (txrx_mode_final == TRX_MODE_RX)
{
// Assure that TX->RX timer gets reset at the end of an element
// TR->RX audio un-muting timer and Audio/AGC De-Glitching handler
#if 0
if (ts.tx_audio_source == TX_AUDIO_MIC && (ts.dmod_mode != DEMOD_CW))
{
ts.audio_spkr_unmute_delay_count = VOICE_TX2RX_DELAY_DEFAULT; // set time delay in SSB mode with MIC
ts.audio_processor_input_mute_counter = VOICE_TX2RX_DELAY_DEFAULT;
}
#endif
}
else
{
RadioManagement_SetPaBias();
uint32_t input_mute_time = 0, dac_mute_time = 0, dac_mute_time_mode = 0, input_mute_time_mode = 0; // aka 1.3ms
// calculate expire time for audio muting in interrupts, it is 15 interrupts per 10ms
dac_mute_time = ts.txrx_switch_audio_muting_timing * 15;
if (ts.dmod_mode != DEMOD_CW)
{
switch(ts.tx_audio_source)
{
case TX_AUDIO_DIG:
dac_mute_time_mode = 0* 15; // Minimum time is 0ms
break;
case TX_AUDIO_LINEIN_L:
case TX_AUDIO_LINEIN_R:
dac_mute_time_mode = 4 * 15; // Minimum time is 40ms
input_mute_time_mode = dac_mute_time_mode;
break;
case TX_AUDIO_MIC:
dac_mute_time_mode = 4* 15; // Minimum time is 40ms
input_mute_time_mode = dac_mute_time_mode;
break;
}
}
dac_mute_time = (dac_mute_time > dac_mute_time_mode)? dac_mute_time : dac_mute_time_mode;
input_mute_time = (input_mute_time > input_mute_time_mode)? input_mute_time : input_mute_time_mode;
ts.audio_processor_input_mute_counter = input_mute_time;
ts.audio_dac_muting_buffer_count = dac_mute_time; // 15 == 10ms
ts.audio_dac_muting_flag = false; // unmute audio output unless timed muting is active
}
ts.txrx_mode = txrx_mode_final;
}
}
radioManagement_SwitchTxRx_running = false;
}
/*
* @returns: false -> use USB, true -> use LSB
*/
bool RadioManagement_CalculateCWSidebandMode()
{
bool retval = false;
switch(RadioManagement_CWConfigValueToModeEntry(ts.cw_offset_mode)->sideband_mode)
{
case CW_SB_AUTO: // For "auto" modes determine if we are above or below threshold frequency
// if (RadioManagement_SSB_AutoSideBand(df.tune_new) == DEMOD_USB) // is the current frequency above the USB threshold?
retval = (df.tune_new <= USB_FREQ_THRESHOLD && RadioManagement_GetBand(df.tune_new) != BAND_MODE_60);
// is the current frequency below the USB threshold AND is it not 60m? -> LSB
break;
case CW_SB_LSB:
retval = true;
break;
case CW_SB_USB:
default:
retval = false;
break;
}
return retval;
}
void RadioManagement_ChangeBandFilter(uchar band)
{
// here the bands are mapped to the hardware functions to enable the proper
// filter configuration for a given band
switch(band)
{
case BAND_MODE_2200:
case BAND_MODE_630:
case BAND_MODE_160:
case BAND_MODE_80:
Board_SelectLpfBpf(0);
break;
case BAND_MODE_60:
case BAND_MODE_40:
Board_SelectLpfBpf(1);
break;
case BAND_MODE_30:
case BAND_MODE_20:
Board_SelectLpfBpf(2);
break;
case BAND_MODE_17:
case BAND_MODE_15:
case BAND_MODE_12:
case BAND_MODE_10:
case BAND_MODE_6:
case BAND_MODE_4:
Board_SelectLpfBpf(3);
break;
default:
break;
}
nr_params.first_time = 1; // in case of any Bandfilter change restart the NR routine
}
typedef struct BandFilterDescriptor
{
uint32_t upper;
uint16_t filter_band;
uint16_t band_mode;