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radio.c
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radio.c
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/* Copyright 2023 Dual Tachyon
* https://github.com/DualTachyon
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <string.h>
#include "app/dtmf.h"
#ifdef ENABLE_FMRADIO
#include "app/fm.h"
#endif
#include "audio.h"
#include "bsp/dp32g030/gpio.h"
#include "dcs.h"
#include "driver/bk4819.h"
#include "driver/eeprom.h"
#include "driver/gpio.h"
#include "driver/system.h"
#include "frequencies.h"
#include "functions.h"
#include "helper/battery.h"
#include "misc.h"
#include "radio.h"
#include "settings.h"
#include "ui/menu.h"
VFO_Info_t *gTxVfo;
VFO_Info_t *gRxVfo;
VFO_Info_t *gCurrentVfo;
DCS_CodeType_t gSelectedCodeType;
DCS_CodeType_t gCurrentCodeType;
uint8_t gSelectedCode;
STEP_Setting_t gStepSetting;
VfoState_t VfoState[2];
const char gModulationStr[][4] =
{
"FM",
"AM",
"USB",
#ifdef ENABLE_BYP_RAW_DEMODULATORS
"BYP",
"RAW"
#endif
};
bool RADIO_CheckValidChannel(uint16_t Channel, bool bCheckScanList, uint8_t VFO)
{ // return true if the channel appears valid
uint8_t Attributes;
uint8_t PriorityCh1;
uint8_t PriorityCh2;
if (!IS_MR_CHANNEL(Channel))
return false;
Attributes = gMR_ChannelAttributes[Channel];
if ((Attributes & MR_CH_BAND_MASK) > BAND7_470MHz)
return false;
if (bCheckScanList)
{
switch (VFO)
{
case 0:
if ((Attributes & MR_CH_SCANLIST1) == 0)
return false;
PriorityCh1 = gEeprom.SCANLIST_PRIORITY_CH1[0];
PriorityCh2 = gEeprom.SCANLIST_PRIORITY_CH2[0];
break;
case 1:
if ((Attributes & MR_CH_SCANLIST2) == 0)
return false;
PriorityCh1 = gEeprom.SCANLIST_PRIORITY_CH1[1];
PriorityCh2 = gEeprom.SCANLIST_PRIORITY_CH2[1];
break;
default:
return true;
}
if (PriorityCh1 == Channel)
return false;
if (PriorityCh2 == Channel)
return false;
}
return true;
}
uint8_t RADIO_FindNextChannel(uint8_t Channel, int8_t Direction, bool bCheckScanList, uint8_t VFO)
{
unsigned int i;
for (i = 0; IS_MR_CHANNEL(i); i++)
{
if (Channel == 0xFF)
Channel = MR_CHANNEL_LAST;
else
if (!IS_MR_CHANNEL(Channel))
Channel = MR_CHANNEL_FIRST;
if (RADIO_CheckValidChannel(Channel, bCheckScanList, VFO))
return Channel;
Channel += Direction;
}
return 0xFF;
}
void RADIO_InitInfo(VFO_Info_t *pInfo, const uint8_t ChannelSave, const uint32_t Frequency)
{
memset(pInfo, 0, sizeof(*pInfo));
pInfo->Band = FREQUENCY_GetBand(Frequency);
pInfo->SCANLIST1_PARTICIPATION = true;
pInfo->SCANLIST2_PARTICIPATION = true;
pInfo->STEP_SETTING = STEP_12_5kHz;
pInfo->StepFrequency = gStepFrequencyTable[pInfo->STEP_SETTING];
pInfo->CHANNEL_SAVE = ChannelSave;
pInfo->FrequencyReverse = false;
pInfo->OUTPUT_POWER = OUTPUT_POWER_LOW;
pInfo->freq_config_RX.Frequency = Frequency;
pInfo->freq_config_TX.Frequency = Frequency;
pInfo->pRX = &pInfo->freq_config_RX;
pInfo->pTX = &pInfo->freq_config_TX;
pInfo->Compander = 0; // off
if (ChannelSave == (FREQ_CHANNEL_FIRST + BAND2_108MHz))
pInfo->Modulation = MODULATION_AM;
RADIO_ConfigureSquelchAndOutputPower(pInfo);
}
void RADIO_ConfigureChannel(const unsigned int VFO, const unsigned int configure)
{
uint8_t Channel;
uint8_t Attributes;
uint8_t Band;
bool bParticipation2;
uint16_t Base;
uint32_t Frequency;
VFO_Info_t *pRadio = &gEeprom.VfoInfo[VFO];
if (!gSetting_350EN)
{
if (gEeprom.FreqChannel[VFO] == (FREQ_CHANNEL_LAST - 2))
gEeprom.FreqChannel[VFO] = FREQ_CHANNEL_LAST - 1;
if (gEeprom.ScreenChannel[VFO] == (FREQ_CHANNEL_LAST - 2))
gEeprom.ScreenChannel[VFO] = FREQ_CHANNEL_LAST - 1;
}
Channel = gEeprom.ScreenChannel[VFO];
if (IS_VALID_CHANNEL(Channel))
{
#ifdef ENABLE_NOAA
if (Channel >= NOAA_CHANNEL_FIRST)
{
RADIO_InitInfo(pRadio, gEeprom.ScreenChannel[VFO], NoaaFrequencyTable[Channel - NOAA_CHANNEL_FIRST]);
if (gEeprom.CROSS_BAND_RX_TX == CROSS_BAND_OFF)
return;
gEeprom.CROSS_BAND_RX_TX = CROSS_BAND_OFF;
gUpdateStatus = true;
return;
}
#endif
if (IS_MR_CHANNEL(Channel))
{
Channel = RADIO_FindNextChannel(Channel, RADIO_CHANNEL_UP, false, VFO);
if (Channel == 0xFF)
{
Channel = gEeprom.FreqChannel[VFO];
gEeprom.ScreenChannel[VFO] = gEeprom.FreqChannel[VFO];
}
else
{
gEeprom.ScreenChannel[VFO] = Channel;
gEeprom.MrChannel[VFO] = Channel;
}
}
}
else
Channel = FREQ_CHANNEL_LAST - 1;
Attributes = gMR_ChannelAttributes[Channel];
if (Attributes == 0xFF)
{ // invalid/unused channel
uint8_t Index;
if (IS_MR_CHANNEL(Channel))
{
Channel = gEeprom.FreqChannel[VFO];
gEeprom.ScreenChannel[VFO] = gEeprom.FreqChannel[VFO];
}
Index = Channel - FREQ_CHANNEL_FIRST;
RADIO_InitInfo(pRadio, Channel, frequencyBandTable[Index].lower);
return;
}
Band = Attributes & MR_CH_BAND_MASK;
if (Band > BAND7_470MHz)
{
Band = BAND6_400MHz;
}
if (IS_MR_CHANNEL(Channel))
{
gEeprom.VfoInfo[VFO].Band = Band;
gEeprom.VfoInfo[VFO].SCANLIST1_PARTICIPATION = !!(Attributes & MR_CH_SCANLIST1);
bParticipation2 = !!(Attributes & MR_CH_SCANLIST2);
}
else
{
Band = Channel - FREQ_CHANNEL_FIRST;
gEeprom.VfoInfo[VFO].Band = Band;
bParticipation2 = true;
gEeprom.VfoInfo[VFO].SCANLIST1_PARTICIPATION = true;
}
gEeprom.VfoInfo[VFO].SCANLIST2_PARTICIPATION = bParticipation2;
gEeprom.VfoInfo[VFO].CHANNEL_SAVE = Channel;
if (IS_MR_CHANNEL(Channel))
Base = Channel * 16;
else
Base = 0x0C80 + ((Channel - FREQ_CHANNEL_FIRST) * 32) + (VFO * 16);
if (configure == VFO_CONFIGURE_RELOAD || Channel >= FREQ_CHANNEL_FIRST)
{
uint8_t Tmp;
uint8_t Data[8];
// ***************
EEPROM_ReadBuffer(Base + 8, Data, sizeof(Data));
Tmp = Data[3] & 0x0F;
if (Tmp > TX_OFFSET_FREQUENCY_DIRECTION_SUB)
Tmp = 0;
gEeprom.VfoInfo[VFO].TX_OFFSET_FREQUENCY_DIRECTION = Tmp;
gEeprom.VfoInfo[VFO].Modulation = (Data[3] >> 4);
Tmp = Data[6];
if (Tmp >= ARRAY_SIZE(gStepFrequencyTable))
Tmp = STEP_12_5kHz;
gEeprom.VfoInfo[VFO].STEP_SETTING = Tmp;
gEeprom.VfoInfo[VFO].StepFrequency = gStepFrequencyTable[Tmp];
Tmp = Data[7];
if (Tmp > (ARRAY_SIZE(gSubMenu_SCRAMBLER) - 1))
Tmp = 0;
gEeprom.VfoInfo[VFO].SCRAMBLING_TYPE = Tmp;
gEeprom.VfoInfo[VFO].freq_config_RX.CodeType = (Data[2] >> 0) & 0x0F;
gEeprom.VfoInfo[VFO].freq_config_TX.CodeType = (Data[2] >> 4) & 0x0F;
Tmp = Data[0];
switch (gEeprom.VfoInfo[VFO].freq_config_RX.CodeType)
{
default:
case CODE_TYPE_OFF:
gEeprom.VfoInfo[VFO].freq_config_RX.CodeType = CODE_TYPE_OFF;
Tmp = 0;
break;
case CODE_TYPE_CONTINUOUS_TONE:
if (Tmp > (ARRAY_SIZE(CTCSS_Options) - 1))
Tmp = 0;
break;
case CODE_TYPE_DIGITAL:
case CODE_TYPE_REVERSE_DIGITAL:
if (Tmp > (ARRAY_SIZE(DCS_Options) - 1))
Tmp = 0;
break;
}
gEeprom.VfoInfo[VFO].freq_config_RX.Code = Tmp;
Tmp = Data[1];
switch (gEeprom.VfoInfo[VFO].freq_config_TX.CodeType)
{
default:
case CODE_TYPE_OFF:
gEeprom.VfoInfo[VFO].freq_config_TX.CodeType = CODE_TYPE_OFF;
Tmp = 0;
break;
case CODE_TYPE_CONTINUOUS_TONE:
if (Tmp > (ARRAY_SIZE(CTCSS_Options) - 1))
Tmp = 0;
break;
case CODE_TYPE_DIGITAL:
case CODE_TYPE_REVERSE_DIGITAL:
if (Tmp > (ARRAY_SIZE(DCS_Options) - 1))
Tmp = 0;
break;
}
gEeprom.VfoInfo[VFO].freq_config_TX.Code = Tmp;
if (Data[4] == 0xFF)
{
gEeprom.VfoInfo[VFO].FrequencyReverse = false;
gEeprom.VfoInfo[VFO].CHANNEL_BANDWIDTH = BK4819_FILTER_BW_WIDE;
gEeprom.VfoInfo[VFO].OUTPUT_POWER = OUTPUT_POWER_LOW;
gEeprom.VfoInfo[VFO].BUSY_CHANNEL_LOCK = false;
}
else
{
const uint8_t d4 = Data[4];
gEeprom.VfoInfo[VFO].FrequencyReverse = !!((d4 >> 0) & 1u);
gEeprom.VfoInfo[VFO].CHANNEL_BANDWIDTH = !!((d4 >> 1) & 1u);
gEeprom.VfoInfo[VFO].OUTPUT_POWER = ((d4 >> 2) & 3u);
gEeprom.VfoInfo[VFO].BUSY_CHANNEL_LOCK = !!((d4 >> 4) & 1u);
}
if (Data[5] == 0xFF)
{
gEeprom.VfoInfo[VFO].DTMF_DECODING_ENABLE = false;
gEeprom.VfoInfo[VFO].DTMF_PTT_ID_TX_MODE = PTT_ID_OFF;
}
else
{
gEeprom.VfoInfo[VFO].DTMF_DECODING_ENABLE = ((Data[5] >> 0) & 1u) ? true : false;
gEeprom.VfoInfo[VFO].DTMF_PTT_ID_TX_MODE = ((Data[5] >> 1) & 7u);
}
// ***************
struct
{
uint32_t Frequency;
uint32_t Offset;
} __attribute__((packed)) Info;
EEPROM_ReadBuffer(Base, &Info, sizeof(Info));
pRadio->freq_config_RX.Frequency = Info.Frequency;
if (Info.Offset >= 100000000)
Info.Offset = 1000000;
gEeprom.VfoInfo[VFO].TX_OFFSET_FREQUENCY = Info.Offset;
// ***************
}
Frequency = pRadio->freq_config_RX.Frequency;
// fix previously set incorrect band
Band = FREQUENCY_GetBand(Frequency);
if (Frequency < frequencyBandTable[Band].lower)
Frequency = frequencyBandTable[Band].lower;
else
if (Frequency > frequencyBandTable[Band].upper)
Frequency = frequencyBandTable[Band].upper;
else
if (Channel >= FREQ_CHANNEL_FIRST)
Frequency = FREQUENCY_RoundToStep(Frequency, gEeprom.VfoInfo[VFO].StepFrequency);
pRadio->freq_config_RX.Frequency = Frequency;
if (Frequency >= frequencyBandTable[BAND2_108MHz].upper && Frequency < frequencyBandTable[BAND2_108MHz].upper)
gEeprom.VfoInfo[VFO].TX_OFFSET_FREQUENCY_DIRECTION = TX_OFFSET_FREQUENCY_DIRECTION_OFF;
else if (!IS_MR_CHANNEL(Channel))
gEeprom.VfoInfo[VFO].TX_OFFSET_FREQUENCY = FREQUENCY_RoundToStep(gEeprom.VfoInfo[VFO].TX_OFFSET_FREQUENCY, gEeprom.VfoInfo[VFO].StepFrequency);
RADIO_ApplyOffset(pRadio);
memset(gEeprom.VfoInfo[VFO].Name, 0, sizeof(gEeprom.VfoInfo[VFO].Name));
if (IS_MR_CHANNEL(Channel))
{ // 16 bytes allocated to the channel name but only 10 used, the rest are 0's
EEPROM_ReadBuffer(0x0F50 + (Channel * 16), gEeprom.VfoInfo[VFO].Name + 0, 8);
EEPROM_ReadBuffer(0x0F58 + (Channel * 16), gEeprom.VfoInfo[VFO].Name + 8, 2);
}
if (!gEeprom.VfoInfo[VFO].FrequencyReverse)
{
gEeprom.VfoInfo[VFO].pRX = &gEeprom.VfoInfo[VFO].freq_config_RX;
gEeprom.VfoInfo[VFO].pTX = &gEeprom.VfoInfo[VFO].freq_config_TX;
}
else
{
gEeprom.VfoInfo[VFO].pRX = &gEeprom.VfoInfo[VFO].freq_config_TX;
gEeprom.VfoInfo[VFO].pTX = &gEeprom.VfoInfo[VFO].freq_config_RX;
}
if (!gSetting_350EN)
{
FREQ_Config_t *pConfig = gEeprom.VfoInfo[VFO].pRX;
if (pConfig->Frequency >= 35000000 && pConfig->Frequency < 40000000)
pConfig->Frequency = 43300000;
}
if (gEeprom.VfoInfo[VFO].Modulation != MODULATION_FM)
{ // freq/chan is in AM mode
gEeprom.VfoInfo[VFO].SCRAMBLING_TYPE = 0;
// gEeprom.VfoInfo[VFO].DTMF_DECODING_ENABLE = false; // no reason to disable DTMF decoding, aircraft use it on SSB
gEeprom.VfoInfo[VFO].freq_config_RX.CodeType = CODE_TYPE_OFF;
gEeprom.VfoInfo[VFO].freq_config_TX.CodeType = CODE_TYPE_OFF;
}
gEeprom.VfoInfo[VFO].Compander = (Attributes & MR_CH_COMPAND) >> 4;
RADIO_ConfigureSquelchAndOutputPower(pRadio);
}
void RADIO_ConfigureSquelchAndOutputPower(VFO_Info_t *pInfo)
{
uint8_t Txp[3];
FREQUENCY_Band_t Band;
// *******************************
// squelch
Band = FREQUENCY_GetBand(pInfo->pRX->Frequency);
uint16_t Base = (Band < BAND4_174MHz) ? 0x1E60 : 0x1E00;
if (gEeprom.SQUELCH_LEVEL == 0)
{ // squelch == 0 (off)
pInfo->SquelchOpenRSSIThresh = 0; // 0 ~ 255
pInfo->SquelchOpenNoiseThresh = 127; // 127 ~ 0
pInfo->SquelchCloseGlitchThresh = 255; // 255 ~ 0
pInfo->SquelchCloseRSSIThresh = 0; // 0 ~ 255
pInfo->SquelchCloseNoiseThresh = 127; // 127 ~ 0
pInfo->SquelchOpenGlitchThresh = 255; // 255 ~ 0
}
else
{ // squelch >= 1
Base += gEeprom.SQUELCH_LEVEL; // my eeprom squelch-1
// VHF UHF
EEPROM_ReadBuffer(Base + 0x00, &pInfo->SquelchOpenRSSIThresh, 1); // 50 10
EEPROM_ReadBuffer(Base + 0x10, &pInfo->SquelchCloseRSSIThresh, 1); // 40 5
EEPROM_ReadBuffer(Base + 0x20, &pInfo->SquelchOpenNoiseThresh, 1); // 65 90
EEPROM_ReadBuffer(Base + 0x30, &pInfo->SquelchCloseNoiseThresh, 1); // 70 100
EEPROM_ReadBuffer(Base + 0x40, &pInfo->SquelchCloseGlitchThresh, 1); // 90 90
EEPROM_ReadBuffer(Base + 0x50, &pInfo->SquelchOpenGlitchThresh, 1); // 100 100
uint16_t rssi_open = pInfo->SquelchOpenRSSIThresh;
uint16_t rssi_close = pInfo->SquelchCloseRSSIThresh;
uint16_t noise_open = pInfo->SquelchOpenNoiseThresh;
uint16_t noise_close = pInfo->SquelchCloseNoiseThresh;
uint16_t glitch_open = pInfo->SquelchOpenGlitchThresh;
uint16_t glitch_close = pInfo->SquelchCloseGlitchThresh;
#if ENABLE_SQUELCH_MORE_SENSITIVE
// make squelch a little more sensitive
//
// getting the best setting here is still experimental, bare with me
//
// note that 'noise' and 'glitch' values are inverted compared to 'rssi' values
#if 0
rssi_open = (rssi_open * 8) / 9;
noise_open = (noise_open * 9) / 8;
glitch_open = (glitch_open * 9) / 8;
#else
// even more sensitive .. use when RX bandwidths are fixed (no weak signal auto adjust)
rssi_open = (rssi_open * 1) / 2;
noise_open = (noise_open * 2) / 1;
glitch_open = (glitch_open * 2) / 1;
#endif
#else
// more sensitive .. use when RX bandwidths are fixed (no weak signal auto adjust)
rssi_open = (rssi_open * 3) / 4;
noise_open = (noise_open * 4) / 3;
glitch_open = (glitch_open * 4) / 3;
#endif
rssi_close = (rssi_open * 9) / 10;
noise_close = (noise_open * 10) / 9;
glitch_close = (glitch_open * 10) / 9;
// ensure the 'close' threshold is lower than the 'open' threshold
if (rssi_close == rssi_open && rssi_close >= 2)
rssi_close -= 2;
if (noise_close == noise_open && noise_close <= 125)
noise_close += 2;
if (glitch_close == glitch_open && glitch_close <= 253)
glitch_close += 2;
pInfo->SquelchOpenRSSIThresh = (rssi_open > 255) ? 255 : rssi_open;
pInfo->SquelchCloseRSSIThresh = (rssi_close > 255) ? 255 : rssi_close;
pInfo->SquelchOpenNoiseThresh = (noise_open > 127) ? 127 : noise_open;
pInfo->SquelchCloseNoiseThresh = (noise_close > 127) ? 127 : noise_close;
pInfo->SquelchOpenGlitchThresh = (glitch_open > 255) ? 255 : glitch_open;
pInfo->SquelchCloseGlitchThresh = (glitch_close > 255) ? 255 : glitch_close;
}
// *******************************
// output power
Band = FREQUENCY_GetBand(pInfo->pTX->Frequency);
EEPROM_ReadBuffer(0x1ED0 + (Band * 16) + (pInfo->OUTPUT_POWER * 3), Txp, 3);
#ifdef ENABLE_REDUCE_LOW_MID_TX_POWER
// make low and mid even lower
if (pInfo->OUTPUT_POWER == OUTPUT_POWER_LOW) {
Txp[0] /= 5;
Txp[1] /= 5;
Txp[2] /= 5;
}
else if (pInfo->OUTPUT_POWER == OUTPUT_POWER_MID){
Txp[0] /= 3;
Txp[1] /= 3;
Txp[2] /= 3;
}
#endif
pInfo->TXP_CalculatedSetting = FREQUENCY_CalculateOutputPower(
Txp[0],
Txp[1],
Txp[2],
frequencyBandTable[Band].lower,
(frequencyBandTable[Band].lower + frequencyBandTable[Band].upper) / 2,
frequencyBandTable[Band].upper,
pInfo->pTX->Frequency);
// *******************************
}
void RADIO_ApplyOffset(VFO_Info_t *pInfo)
{
uint32_t Frequency = pInfo->freq_config_RX.Frequency;
switch (pInfo->TX_OFFSET_FREQUENCY_DIRECTION)
{
case TX_OFFSET_FREQUENCY_DIRECTION_OFF:
break;
case TX_OFFSET_FREQUENCY_DIRECTION_ADD:
Frequency += pInfo->TX_OFFSET_FREQUENCY;
break;
case TX_OFFSET_FREQUENCY_DIRECTION_SUB:
Frequency -= pInfo->TX_OFFSET_FREQUENCY;
break;
}
if (Frequency < frequencyBandTable[0].lower)
Frequency = frequencyBandTable[0].lower;
else
if (Frequency > frequencyBandTable[ARRAY_SIZE(frequencyBandTable) - 1].upper)
Frequency = frequencyBandTable[ARRAY_SIZE(frequencyBandTable) - 1].upper;
pInfo->freq_config_TX.Frequency = Frequency;
}
static void RADIO_SelectCurrentVfo(void)
{
// if crossband is active and DW not the gCurrentVfo is gTxVfo (gTxVfo/TX_VFO is only ever changed by the user)
// otherwise it is set to gRxVfo which is set to gTxVfo in RADIO_SelectVfos
// so in the end gCurrentVfo is equal to gTxVfo unless dual watch changes it on incomming transmition (again, this can only happen when XB off)
// note: it is called only in certain situations so could be not up-to-date
gCurrentVfo = (gEeprom.CROSS_BAND_RX_TX == CROSS_BAND_OFF || gEeprom.DUAL_WATCH != DUAL_WATCH_OFF) ? gRxVfo : gTxVfo;
}
void RADIO_SelectVfos(void)
{
// if crossband without DW is used then RX_VFO is the opposite to the TX_VFO
gEeprom.RX_VFO = (gEeprom.CROSS_BAND_RX_TX == CROSS_BAND_OFF || gEeprom.DUAL_WATCH != DUAL_WATCH_OFF) ? gEeprom.TX_VFO : !gEeprom.TX_VFO;
gTxVfo = &gEeprom.VfoInfo[gEeprom.TX_VFO];
gRxVfo = &gEeprom.VfoInfo[gEeprom.RX_VFO];
RADIO_SelectCurrentVfo();
}
void RADIO_SetupRegisters(bool switchToForeground)
{
BK4819_FilterBandwidth_t Bandwidth = gRxVfo->CHANNEL_BANDWIDTH;
uint16_t InterruptMask;
uint32_t Frequency;
AUDIO_AudioPathOff();
gEnableSpeaker = false;
BK4819_ToggleGpioOut(BK4819_GPIO6_PIN2_GREEN, false);
switch (Bandwidth)
{
default:
Bandwidth = BK4819_FILTER_BW_WIDE;
[[fallthrough]];
case BK4819_FILTER_BW_WIDE:
case BK4819_FILTER_BW_NARROW:
#ifdef ENABLE_AM_FIX
// BK4819_SetFilterBandwidth(Bandwidth, gRxVfo->Modulation == MODULATION_AM && gSetting_AM_fix);
BK4819_SetFilterBandwidth(Bandwidth, true);
#else
BK4819_SetFilterBandwidth(Bandwidth, false);
#endif
break;
}
BK4819_ToggleGpioOut(BK4819_GPIO5_PIN1_RED, false);
BK4819_SetupPowerAmplifier(0, 0);
BK4819_ToggleGpioOut(BK4819_GPIO1_PIN29_PA_ENABLE, false);
while (1)
{
const uint16_t Status = BK4819_ReadRegister(BK4819_REG_0C);
if ((Status & 1u) == 0) // INTERRUPT REQUEST
break;
BK4819_WriteRegister(BK4819_REG_02, 0);
SYSTEM_DelayMs(1);
}
BK4819_WriteRegister(BK4819_REG_3F, 0);
// mic gain 0.5dB/step 0 to 31
BK4819_WriteRegister(BK4819_REG_7D, 0xE940 | (gEeprom.MIC_SENSITIVITY_TUNING & 0x1f));
#ifdef ENABLE_NOAA
if (!IS_NOAA_CHANNEL(gRxVfo->CHANNEL_SAVE) || !gIsNoaaMode)
Frequency = gRxVfo->pRX->Frequency;
else
Frequency = NoaaFrequencyTable[gNoaaChannel];
#else
Frequency = gRxVfo->pRX->Frequency;
#endif
BK4819_SetFrequency(Frequency);
BK4819_SetupSquelch(
gRxVfo->SquelchOpenRSSIThresh, gRxVfo->SquelchCloseRSSIThresh,
gRxVfo->SquelchOpenNoiseThresh, gRxVfo->SquelchCloseNoiseThresh,
gRxVfo->SquelchCloseGlitchThresh, gRxVfo->SquelchOpenGlitchThresh);
BK4819_PickRXFilterPathBasedOnFrequency(Frequency);
// what does this in do ?
BK4819_ToggleGpioOut(BK4819_GPIO0_PIN28_RX_ENABLE, true);
// AF RX Gain and DAC
//BK4819_WriteRegister(BK4819_REG_48, 0xB3A8); // 1011 00 111010 1000
BK4819_WriteRegister(BK4819_REG_48,
(11u << 12) | // ??? .. 0 ~ 15, doesn't seem to make any difference
( 0u << 10) | // AF Rx Gain-1
(gEeprom.VOLUME_GAIN << 4) | // AF Rx Gain-2
(gEeprom.DAC_GAIN << 0)); // AF DAC Gain (after Gain-1 and Gain-2)
InterruptMask = BK4819_REG_3F_SQUELCH_FOUND | BK4819_REG_3F_SQUELCH_LOST;
#ifdef ENABLE_NOAA
if (!IS_NOAA_CHANNEL(gRxVfo->CHANNEL_SAVE))
#endif
{
if (gRxVfo->Modulation == MODULATION_FM)
{ // FM
uint8_t CodeType = gSelectedCodeType;
uint8_t Code = gSelectedCode;
if (gCssScanMode == CSS_SCAN_MODE_OFF)
{
CodeType = gRxVfo->pRX->CodeType;
Code = gRxVfo->pRX->Code;
}
switch (CodeType)
{
default:
case CODE_TYPE_OFF:
BK4819_SetCTCSSFrequency(670);
//#ifndef ENABLE_CTCSS_TAIL_PHASE_SHIFT
BK4819_SetTailDetection(550); // QS's 55Hz tone method
//#else
// BK4819_SetTailDetection(670); // 67Hz
//#endif
InterruptMask = BK4819_REG_3F_CxCSS_TAIL | BK4819_REG_3F_SQUELCH_FOUND | BK4819_REG_3F_SQUELCH_LOST;
break;
case CODE_TYPE_CONTINUOUS_TONE:
BK4819_SetCTCSSFrequency(CTCSS_Options[Code]);
//#ifndef ENABLE_CTCSS_TAIL_PHASE_SHIFT
BK4819_SetTailDetection(550); // QS's 55Hz tone method
//#else
// BK4819_SetTailDetection(CTCSS_Options[Code]);
//#endif
InterruptMask = 0
| BK4819_REG_3F_CxCSS_TAIL
| BK4819_REG_3F_CTCSS_FOUND
| BK4819_REG_3F_CTCSS_LOST
| BK4819_REG_3F_SQUELCH_FOUND
| BK4819_REG_3F_SQUELCH_LOST;
break;
case CODE_TYPE_DIGITAL:
case CODE_TYPE_REVERSE_DIGITAL:
BK4819_SetCDCSSCodeWord(DCS_GetGolayCodeWord(CodeType, Code));
InterruptMask = 0
| BK4819_REG_3F_CxCSS_TAIL
| BK4819_REG_3F_CDCSS_FOUND
| BK4819_REG_3F_CDCSS_LOST
| BK4819_REG_3F_SQUELCH_FOUND
| BK4819_REG_3F_SQUELCH_LOST;
break;
}
if (gRxVfo->SCRAMBLING_TYPE > 0 && gSetting_ScrambleEnable)
BK4819_EnableScramble(gRxVfo->SCRAMBLING_TYPE - 1);
else
BK4819_DisableScramble();
}
}
#ifdef ENABLE_NOAA
else
{
BK4819_SetCTCSSFrequency(2625);
InterruptMask = 0
| BK4819_REG_3F_CTCSS_FOUND
| BK4819_REG_3F_CTCSS_LOST
| BK4819_REG_3F_SQUELCH_FOUND
| BK4819_REG_3F_SQUELCH_LOST;
}
#endif
#ifdef ENABLE_VOX
#ifdef ENABLE_NOAA
#ifdef ENABLE_FMRADIO
if (gEeprom.VOX_SWITCH && !gFmRadioMode && !IS_NOAA_CHANNEL(gCurrentVfo->CHANNEL_SAVE) && gCurrentVfo->Modulation == MODULATION_FM)
#else
if (gEeprom.VOX_SWITCH && !IS_NOAA_CHANNEL(gCurrentVfo->CHANNEL_SAVE) && gCurrentVfo->Modulation == MODULATION_FM)
#endif
#else
#ifdef ENABLE_FMRADIO
if (gEeprom.VOX_SWITCH && !gFmRadioMode && gCurrentVfo->Modulation == MODULATION_FM)
#else
if (gEeprom.VOX_SWITCH && gCurrentVfo->Modulation == MODULATION_FM)
#endif
#endif
{
BK4819_EnableVox(gEeprom.VOX1_THRESHOLD, gEeprom.VOX0_THRESHOLD);
InterruptMask |= BK4819_REG_3F_VOX_FOUND | BK4819_REG_3F_VOX_LOST;
}
else
#endif
BK4819_DisableVox();
// RX expander
BK4819_SetCompander((gRxVfo->Modulation == MODULATION_FM && gRxVfo->Compander >= 2) ? gRxVfo->Compander : 0);
#if 0
if (!gRxVfo->DTMF_DECODING_ENABLE && !gSetting_KILLED)
{
BK4819_DisableDTMF();
}
else
{
BK4819_EnableDTMF();
InterruptMask |= BK4819_REG_3F_DTMF_5TONE_FOUND;
}
#else
if (gCurrentFunction != FUNCTION_TRANSMIT)
{
BK4819_DisableDTMF();
BK4819_EnableDTMF();
InterruptMask |= BK4819_REG_3F_DTMF_5TONE_FOUND;
}
else
{
BK4819_DisableDTMF();
}
#endif
// enable/disable BK4819 selected interrupts
BK4819_WriteRegister(BK4819_REG_3F, InterruptMask);
FUNCTION_Init();
if (switchToForeground)
FUNCTION_Select(FUNCTION_FOREGROUND);
}
#ifdef ENABLE_NOAA
void RADIO_ConfigureNOAA(void)
{
uint8_t ChanAB;
gUpdateStatus = true;
if (gEeprom.NOAA_AUTO_SCAN)
{
if (gEeprom.DUAL_WATCH != DUAL_WATCH_OFF)
{
if (!IS_NOAA_CHANNEL(gEeprom.ScreenChannel[0]))
{
if (!IS_NOAA_CHANNEL(gEeprom.ScreenChannel[1]))
{
gIsNoaaMode = false;
return;
}
ChanAB = 1;
}
else
ChanAB = 0;
if (!gIsNoaaMode)
gNoaaChannel = gEeprom.VfoInfo[ChanAB].CHANNEL_SAVE - NOAA_CHANNEL_FIRST;
gIsNoaaMode = true;
return;
}
if (gRxVfo->CHANNEL_SAVE >= NOAA_CHANNEL_FIRST)
{
gIsNoaaMode = true;
gNoaaChannel = gRxVfo->CHANNEL_SAVE - NOAA_CHANNEL_FIRST;
gNOAA_Countdown_10ms = NOAA_countdown_2_10ms;
gScheduleNOAA = false;
}
else
gIsNoaaMode = false;
}
else
gIsNoaaMode = false;
}
#endif
void RADIO_SetTxParameters(void)
{
BK4819_FilterBandwidth_t Bandwidth = gCurrentVfo->CHANNEL_BANDWIDTH;
AUDIO_AudioPathOff();
gEnableSpeaker = false;
BK4819_ToggleGpioOut(BK4819_GPIO0_PIN28_RX_ENABLE, false);
switch (Bandwidth)
{
default:
Bandwidth = BK4819_FILTER_BW_WIDE;
[[fallthrough]];
case BK4819_FILTER_BW_WIDE:
case BK4819_FILTER_BW_NARROW:
#ifdef ENABLE_AM_FIX
// BK4819_SetFilterBandwidth(Bandwidth, gCurrentVfo->Modulation == MODULATION_AM && gSetting_AM_fix);
BK4819_SetFilterBandwidth(Bandwidth, true);
#else
BK4819_SetFilterBandwidth(Bandwidth, false);
#endif
break;
}
BK4819_SetFrequency(gCurrentVfo->pTX->Frequency);
// TX compressor
BK4819_SetCompander((gRxVfo->Modulation == MODULATION_FM && (gRxVfo->Compander == 1 || gRxVfo->Compander >= 3)) ? gRxVfo->Compander : 0);
BK4819_PrepareTransmit();
SYSTEM_DelayMs(10);
BK4819_PickRXFilterPathBasedOnFrequency(gCurrentVfo->pTX->Frequency);
BK4819_ToggleGpioOut(BK4819_GPIO1_PIN29_PA_ENABLE, true);
SYSTEM_DelayMs(5);
BK4819_SetupPowerAmplifier(gCurrentVfo->TXP_CalculatedSetting, gCurrentVfo->pTX->Frequency);
SYSTEM_DelayMs(10);
switch (gCurrentVfo->pTX->CodeType)
{
default:
case CODE_TYPE_OFF:
BK4819_ExitSubAu();
break;
case CODE_TYPE_CONTINUOUS_TONE:
BK4819_SetCTCSSFrequency(CTCSS_Options[gCurrentVfo->pTX->Code]);
break;
case CODE_TYPE_DIGITAL:
case CODE_TYPE_REVERSE_DIGITAL:
BK4819_SetCDCSSCodeWord(DCS_GetGolayCodeWord(gCurrentVfo->pTX->CodeType, gCurrentVfo->pTX->Code));
break;
}
}
void RADIO_SetModulation(ModulationMode_t modulation)
{
BK4819_AF_Type_t mod;
switch(modulation) {
default:
case MODULATION_FM:
mod = BK4819_AF_FM;
break;
case MODULATION_AM:
mod = BK4819_AF_AM;
break;
case MODULATION_USB:
mod = BK4819_AF_BASEBAND2;
break;
#ifdef ENABLE_BYP_RAW_DEMODULATORS
case MODULATION_BYP:
mod = BK4819_AF_UNKNOWN3;
break;
case MODULATION_RAW:
mod = BK4819_AF_BASEBAND1;
break;
#endif
}
BK4819_SetAF(mod);
BK4819_SetRegValue(afDacGainRegSpec, 0xF);
BK4819_WriteRegister(BK4819_REG_3D, modulation == MODULATION_USB ? 0 : 0x2AAB);
BK4819_SetRegValue(afcDisableRegSpec, modulation != MODULATION_FM);
}
void RADIO_SetVfoState(VfoState_t State)
{
if (State == VFO_STATE_NORMAL)
{
VfoState[0] = VFO_STATE_NORMAL;
VfoState[1] = VFO_STATE_NORMAL;
gVFOStateResumeCountdown_500ms = 0;
}
else
{
if (State == VFO_STATE_VOLTAGE_HIGH)
{
VfoState[0] = VFO_STATE_VOLTAGE_HIGH;
VfoState[1] = VFO_STATE_TX_DISABLE;
}
else
{ // 1of11
const unsigned int vfo = (gEeprom.CROSS_BAND_RX_TX == CROSS_BAND_OFF) ? gEeprom.RX_VFO : gEeprom.TX_VFO;
VfoState[vfo] = State;
}
gVFOStateResumeCountdown_500ms = vfo_state_resume_countdown_500ms;
}
gUpdateDisplay = true;
}
void RADIO_PrepareTX(void)
{
VfoState_t State = VFO_STATE_NORMAL; // default to OK to TX
if (gEeprom.DUAL_WATCH != DUAL_WATCH_OFF)
{ // dual-RX is enabled
gDualWatchCountdown_10ms = dual_watch_count_after_tx_10ms;
gScheduleDualWatch = false;
if (!gRxVfoIsActive)
{ // use the current RX vfo
gEeprom.RX_VFO = gEeprom.TX_VFO;
gRxVfo = gTxVfo;
gRxVfoIsActive = true;
}
// let the user see that DW is not active
gDualWatchActive = false;
gUpdateStatus = true;
}