kopia lustrzana https://github.com/OpenRTX/OpenRTX
New 'radio' interface API, providing a standard interface for low-level platform-specific baseband control
Silvano Seva
rodzic
1840c1aeb5
commit
edb2697124
|
|
@ -0,0 +1,95 @@
|
|||
/***************************************************************************
|
||||
* Copyright (C) 2020 by Federico Amedeo Izzo IU2NUO, *
|
||||
* Niccolò Izzo IU2KIN *
|
||||
* Frederik Saraci IU2NRO *
|
||||
* Silvano Seva IU2KWO *
|
||||
* *
|
||||
* This program is free software; you can redistribute it and/or modify *
|
||||
* it under the terms of the GNU General Public License as published by *
|
||||
* the Free Software Foundation; either version 3 of the License, or *
|
||||
* (at your option) any later version. *
|
||||
* *
|
||||
* This program is distributed in the hope that it will be useful, *
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
|
||||
* GNU General Public License for more details. *
|
||||
* *
|
||||
* You should have received a copy of the GNU General Public License *
|
||||
* along with this program; if not, see <http://www.gnu.org/licenses/> *
|
||||
***************************************************************************/
|
||||
|
||||
#ifndef RADIO_H
|
||||
#define RADIO_H
|
||||
|
||||
#include <stdbool.h>
|
||||
#include <stdint.h>
|
||||
#include <rtx.h>
|
||||
|
||||
/**
|
||||
* This file provides a common interface for the platform-dependent low-level
|
||||
* rtx driver. Top level application code normally does not have to call directly
|
||||
* the API functions provided here, since all the transceiver managment, comprised
|
||||
* the handling of digital protocols is done by the 'rtx' module.
|
||||
*/
|
||||
|
||||
/**
|
||||
* Initialise low-level radio transceiver.
|
||||
*/
|
||||
void radio_init();
|
||||
|
||||
/**
|
||||
* Shut down low-level radio transceiver.
|
||||
*/
|
||||
void radio_terminate();
|
||||
|
||||
/**
|
||||
*
|
||||
*/
|
||||
void radio_setBandwidth(const enum bandwidth bw);
|
||||
|
||||
/**
|
||||
*
|
||||
*/
|
||||
void radio_setOpmode(const enum opmode mode);
|
||||
|
||||
/**
|
||||
*
|
||||
*/
|
||||
void radio_setVcoFrequency(const freq_t frequency, const bool isTransmitting);
|
||||
|
||||
/**
|
||||
*
|
||||
*/
|
||||
void radio_setCSS(const tone_t rxCss, const tone_t txCss);
|
||||
|
||||
/**
|
||||
*
|
||||
*/
|
||||
bool radio_checkRxDigitalSquelch();
|
||||
|
||||
/**
|
||||
*
|
||||
*/
|
||||
void radio_enableRx();
|
||||
|
||||
/**
|
||||
*
|
||||
*/
|
||||
void radio_enableTx(const float txPower, const bool enableCss);
|
||||
|
||||
/**
|
||||
*
|
||||
*/
|
||||
void radio_disableRtx();
|
||||
|
||||
/**
|
||||
*
|
||||
*/
|
||||
void radio_updateCalibrationParams(const rtxStatus_t rtxCfg);
|
||||
|
||||
/**
|
||||
*
|
||||
*/
|
||||
float radio_getRssi(const freq_t rxFreq);
|
||||
|
||||
#endif /* RADIO_H */
|
||||
|
|
@ -0,0 +1,282 @@
|
|||
/***************************************************************************
|
||||
* Copyright (C) 2020 by Federico Amedeo Izzo IU2NUO, *
|
||||
* Niccolò Izzo IU2KIN *
|
||||
* Frederik Saraci IU2NRO *
|
||||
* Silvano Seva IU2KWO *
|
||||
* *
|
||||
* This program is free software; you can redistribute it and/or modify *
|
||||
* it under the terms of the GNU General Public License as published by *
|
||||
* the Free Software Foundation; either version 3 of the License, or *
|
||||
* (at your option) any later version. *
|
||||
* *
|
||||
* This program is distributed in the hope that it will be useful, *
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
|
||||
* GNU General Public License for more details. *
|
||||
* *
|
||||
* You should have received a copy of the GNU General Public License *
|
||||
* along with this program; if not, see <http://www.gnu.org/licenses/> *
|
||||
***************************************************************************/
|
||||
|
||||
#include <interfaces/platform.h>
|
||||
#include <toneGenerator_MDx.h>
|
||||
#include <interfaces/radio.h>
|
||||
#include <interfaces/gpio.h>
|
||||
#include <calibInfo_MDx.h>
|
||||
#include <calibUtils.h>
|
||||
#include <hwconfig.h>
|
||||
#include <ADC1_MDx.h>
|
||||
#include <string.h>
|
||||
#include <stdlib.h>
|
||||
#include "HR-C5000_MD3x0.h"
|
||||
#include "pll_MD3x0.h"
|
||||
|
||||
static const freq_t IF_FREQ = 49950000; /* Intermediate frequency: 49.95MHz */
|
||||
|
||||
const md3x0Calib_t *calData; /* Pointer to calibration data */
|
||||
|
||||
uint8_t vtune_rx = 0; /* Tuning voltage for RX input filter */
|
||||
uint8_t txpwr_lo = 0; /* APC voltage for TX output power control, low power */
|
||||
uint8_t txpwr_hi = 0; /* APC voltage for TX output power control, high power */
|
||||
|
||||
/*
|
||||
* Parameters for RSSI voltage (mV) to input power (dBm) conversion.
|
||||
* Gain is constant, while offset values are aligned to calibration frequency
|
||||
* test points.
|
||||
* Thanks to Wojciech SP5WWP for the measurements!
|
||||
*/
|
||||
float rssi_gain = 22.0f;
|
||||
float rssi_offset[] = {3277.618f, 3654.755f, 3808.191f,
|
||||
3811.318f, 3804.936f, 3806.591f,
|
||||
3723.882f, 3621.373f, 3559.782f};
|
||||
|
||||
void radio_init()
|
||||
{
|
||||
/*
|
||||
* Load calibration data
|
||||
*/
|
||||
calData = ((const md3x0Calib_t *) platform_getCalibrationData());
|
||||
|
||||
/*
|
||||
* Configure RTX GPIOs
|
||||
*/
|
||||
gpio_setMode(PLL_PWR, OUTPUT);
|
||||
gpio_setMode(VCOVCC_SW, OUTPUT);
|
||||
gpio_setMode(DMR_SW, OUTPUT);
|
||||
gpio_setMode(WN_SW, OUTPUT);
|
||||
gpio_setMode(FM_SW, OUTPUT);
|
||||
gpio_setMode(RF_APC_SW, OUTPUT);
|
||||
gpio_setMode(TX_STG_EN, OUTPUT);
|
||||
gpio_setMode(RX_STG_EN, OUTPUT);
|
||||
|
||||
gpio_clearPin(PLL_PWR); /* PLL off */
|
||||
gpio_setPin(VCOVCC_SW); /* VCOVCC high enables RX VCO, TX VCO if low */
|
||||
gpio_clearPin(WN_SW); /* 25kHz bandwidth */
|
||||
gpio_clearPin(DMR_SW); /* Disconnect HR_C5000 input IF signal and audio out */
|
||||
gpio_clearPin(FM_SW); /* Disconnect analog FM audio path */
|
||||
gpio_clearPin(RF_APC_SW); /* Disable RF power control */
|
||||
gpio_clearPin(TX_STG_EN); /* Disable TX power stage */
|
||||
gpio_clearPin(RX_STG_EN); /* Disable RX input stage */
|
||||
|
||||
/*
|
||||
* Configure and enable DAC
|
||||
*/
|
||||
gpio_setMode(APC_TV, INPUT_ANALOG);
|
||||
gpio_setMode(MOD2_BIAS, INPUT_ANALOG);
|
||||
|
||||
RCC->APB1ENR |= RCC_APB1ENR_DACEN;
|
||||
DAC->CR = DAC_CR_EN2 | DAC_CR_EN1;
|
||||
DAC->DHR12R2 = 0;
|
||||
DAC->DHR12R1 = 0;
|
||||
|
||||
/*
|
||||
* Enable and configure PLL
|
||||
*/
|
||||
gpio_setPin(PLL_PWR);
|
||||
pll_init();
|
||||
|
||||
/*
|
||||
* Configure HR_C5000
|
||||
*/
|
||||
C5000_init();
|
||||
|
||||
/*
|
||||
* Modulation bias settings, as per TYT firmware.
|
||||
*/
|
||||
DAC->DHR12R2 = (calData->freqAdjustMid)*4 + 0x600;
|
||||
C5000_setModOffset(calData->freqAdjustMid);
|
||||
}
|
||||
|
||||
void radio_terminate()
|
||||
{
|
||||
pll_terminate();
|
||||
|
||||
gpio_clearPin(PLL_PWR); /* PLL off */
|
||||
gpio_clearPin(DMR_SW); /* Disconnect HR_C5000 input IF signal and audio out */
|
||||
gpio_clearPin(FM_SW); /* Disconnect analog FM audio path */
|
||||
gpio_clearPin(RF_APC_SW); /* Disable RF power control */
|
||||
gpio_clearPin(TX_STG_EN); /* Disable TX power stage */
|
||||
gpio_clearPin(RX_STG_EN); /* Disable RX input stage */
|
||||
|
||||
DAC->DHR12R2 = 0;
|
||||
DAC->DHR12R1 = 0;
|
||||
RCC->APB1ENR &= ~RCC_APB1ENR_DACEN;
|
||||
}
|
||||
|
||||
void radio_setBandwidth(const enum bandwidth bw)
|
||||
{
|
||||
switch(bw)
|
||||
{
|
||||
case BW_12_5:
|
||||
gpio_setPin(WN_SW);
|
||||
C5000_setModFactor(0x1E);
|
||||
break;
|
||||
|
||||
case BW_20:
|
||||
gpio_clearPin(WN_SW);
|
||||
C5000_setModFactor(0x30);
|
||||
break;
|
||||
|
||||
case BW_25:
|
||||
gpio_clearPin(WN_SW);
|
||||
C5000_setModFactor(0x3C);
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void radio_setOpmode(const enum opmode mode)
|
||||
{
|
||||
switch(mode)
|
||||
{
|
||||
case FM:
|
||||
gpio_clearPin(DMR_SW);
|
||||
gpio_setPin(FM_SW);
|
||||
C5000_fmMode();
|
||||
break;
|
||||
|
||||
case DMR:
|
||||
gpio_clearPin(FM_SW);
|
||||
gpio_setPin(DMR_SW);
|
||||
//C5000_dmrMode();
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void radio_setVcoFrequency(const freq_t frequency, const bool isTransmitting)
|
||||
{
|
||||
float freq = ((float) frequency);
|
||||
|
||||
if(!isTransmitting)
|
||||
{
|
||||
freq = freq - IF_FREQ;
|
||||
}
|
||||
|
||||
pll_setFrequency(freq, 5);
|
||||
}
|
||||
|
||||
void radio_setCSS(const tone_t rxCss, const tone_t txCss)
|
||||
{
|
||||
(void) rxCss;
|
||||
float tone = ((float) txCss) / 10.0f;
|
||||
toneGen_setToneFreq(tone);
|
||||
}
|
||||
|
||||
bool radio_checkRxDigitalSquelch()
|
||||
{
|
||||
return true;
|
||||
}
|
||||
|
||||
void radio_enableRx()
|
||||
{
|
||||
gpio_clearPin(TX_STG_EN);
|
||||
|
||||
gpio_clearPin(RF_APC_SW);
|
||||
gpio_setPin(VCOVCC_SW);
|
||||
|
||||
DAC->DHR12L1 = vtune_rx * 0xFF;
|
||||
|
||||
gpio_setPin(RX_STG_EN);
|
||||
}
|
||||
|
||||
void radio_enableTx(const float txPower, const bool enableCss)
|
||||
{
|
||||
gpio_clearPin(RX_STG_EN);
|
||||
|
||||
gpio_setPin(RF_APC_SW);
|
||||
gpio_clearPin(VCOVCC_SW);
|
||||
|
||||
/*
|
||||
* TODO: increase granularity
|
||||
*/
|
||||
uint8_t apc = (txPower > 1.0f) ? txpwr_hi : txpwr_lo;
|
||||
DAC->DHR12L1 = apc * 0xFF;
|
||||
|
||||
gpio_setPin(TX_STG_EN);
|
||||
|
||||
if(enableCss)
|
||||
{
|
||||
toneGen_toneOn();
|
||||
}
|
||||
}
|
||||
|
||||
void radio_disableRtx()
|
||||
{
|
||||
toneGen_toneOff();
|
||||
gpio_clearPin(TX_STG_EN);
|
||||
gpio_clearPin(RX_STG_EN);
|
||||
}
|
||||
|
||||
void radio_updateCalibrationParams(const rtxStatus_t rtxCfg)
|
||||
{
|
||||
/* Tuning voltage for RX input filter */
|
||||
vtune_rx = interpCalParameter(rtxCfg.rxFrequency, calData->rxFreq,
|
||||
calData->rxSensitivity, 9);
|
||||
|
||||
/* APC voltage for TX output power control */
|
||||
txpwr_lo = interpCalParameter(rtxCfg.txFrequency, calData->txFreq,
|
||||
calData->txLowPower, 9);
|
||||
|
||||
txpwr_hi = interpCalParameter(rtxCfg.txFrequency, calData->txFreq,
|
||||
calData->txHighPower, 9);
|
||||
|
||||
/* HR_C5000 modulation amplitude */
|
||||
const uint8_t *Ical = calData->sendIrange;
|
||||
const uint8_t *Qcal = calData->sendQrange;
|
||||
|
||||
if(rtxCfg.opMode == FM)
|
||||
{
|
||||
Ical = calData->analogSendIrange;
|
||||
Qcal = calData->analogSendQrange;
|
||||
}
|
||||
|
||||
uint8_t I = interpCalParameter(rtxCfg.txFrequency, calData->txFreq, Ical, 9);
|
||||
uint8_t Q = interpCalParameter(rtxCfg.txFrequency, calData->txFreq, Qcal, 9);
|
||||
|
||||
C5000_setModAmplitude(I, Q);
|
||||
}
|
||||
|
||||
float radio_getRssi(const freq_t rxFreq)
|
||||
{
|
||||
/*
|
||||
* On MD3x0 devices, RSSI value is get by reading the analog RSSI output
|
||||
* from second IF stage (GT3136 IC).
|
||||
* The corresponding power value is obtained through the linear correlation
|
||||
* existing between measured voltage in mV and power in dBm. While gain is
|
||||
* constant, offset depends from the rx frequency.
|
||||
*/
|
||||
|
||||
uint32_t offset_index = (rxFreq - 400035000)/10000000;
|
||||
|
||||
if(rxFreq < 401035000) offset_index = 0;
|
||||
if(rxFreq > 479995000) offset_index = 8;
|
||||
|
||||
float rssi_mv = adc1_getMeasurement(1);
|
||||
float rssi_dbm = (rssi_mv - rssi_offset[offset_index]) / rssi_gain;
|
||||
return rssi_dbm;
|
||||
}
|
||||
Ładowanie…
Reference in New Issue