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HR_C6000: added functions for CTCSS tone encode/decode

This commit is contained in:
Silvano Seva 2024-10-27 10:23:14 +01:00
parent f65c91dc4f
commit 5016884782
3 changed files with 106 additions and 0 deletions
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2
meson.build
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@ -162,6 +162,7 @@ mdx_src = ['platform/drivers/GPS/GPS_MDx.cpp',
'platform/drivers/NVM/nvmem_MDx.c',
'platform/drivers/audio/audio_MDx.cpp',
'platform/drivers/baseband/HR_Cx000.cpp',
'platform/drivers/baseband/HR_C6000.cpp',
'platform/drivers/tones/toneGenerator_MDx.cpp',
'platform/drivers/SPI/spi_custom.c',
'platform/drivers/SPI/spi_bitbang.c']
@ -180,6 +181,7 @@ gdx_src = ['platform/targets/GDx/platform.c',
'platform/drivers/backlight/backlight_GDx.c',
'platform/drivers/baseband/radio_GDx.cpp',
'platform/drivers/baseband/HR_Cx000.cpp',
'platform/drivers/baseband/HR_C6000.cpp',
'platform/drivers/baseband/AT1846S_GDx.cpp',
'platform/drivers/baseband/HR_C6000_GDx.cpp',
'platform/drivers/display/UC1701_GDx.c',

69
platform/drivers/baseband/HR_C6000.cpp Normal file
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@ -0,0 +1,69 @@
/***************************************************************************
* Copyright (C) 2024 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 <utils.h>
#include "HR_C6000.h"
/*
* Table of HR_C6000 CTCSS tones, used for reverse lookup of tone index to be
* written in the configuration register. Taken from datasheet at page 90.
*/
static const uint16_t ctcssToneTable[] =
{
670, 719, 744, 770, 797, 825, 854,
885, 915, 948, 974, 1000, 1035, 1072,
1109, 1148, 1188, 1230, 1273, 1318, 1365,
1413, 1462, 1514, 1567, 1622, 1679, 1738,
1799, 1862, 1928, 2035, 2107, 2181, 2257,
2336, 2418, 2503, 693, 625, 1598, 1655,
1713, 1773, 1835, 1899, 1966, 1995, 2065,
2291, 2541
};
static uint8_t getToneIndex(const tone_t tone)
{
uint8_t idx;
for(idx = 0; idx < ARRAY_SIZE(ctcssToneTable); idx += 1)
{
if(ctcssToneTable[idx] == tone)
break;
}
return idx + 1;
}
void HR_C6000::setTxCtcss(const tone_t tone, const uint8_t deviation)
{
uint8_t index = getToneIndex(tone);
writeCfgRegister(0xA8, index); // Set CTCSS tone index
writeCfgRegister(0xA0, deviation); // Set CTCSS tone deviation
writeCfgRegister(0xA1, 0x08); // Enable CTCSS
}
void HR_C6000::setRxCtcss(const tone_t tone)
{
uint8_t index = getToneIndex(tone);
writeCfgRegister(0xA1, 0x08); // Enable CTCSS
writeCfgRegister(0xA7, 0x10); // CTCSS detection threshold, value from datasheet
writeCfgRegister(0xD3, 0x07); // CTCSS sampling depth, value from datasheet
writeCfgRegister(0xD2, 0xD0);
writeCfgRegister(0xD4, index); // Tone index
}

35
platform/drivers/baseband/HR_C6000.h
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@ -21,6 +21,7 @@
#ifndef HRC6000_H
#define HRC6000_H
#include <datatypes.h>
#include "HR_Cx000.h"
enum class C6000_SpiOpModes : uint8_t
@ -46,6 +47,40 @@ public:
*/
HR_C6000(const struct spiDevice *uSpi, const struct gpioPin uCs) :
HR_Cx000< C6000_SpiOpModes >(uSpi, uCs) { }
/**
* Configure CTCSS tone transmission.
*
* @param tone: CTCSS tone frequency.
* @param deviation: CTCSS tone deviation.
*/
void setTxCtcss(const tone_t tone, const uint8_t deviation);
/**
* Configure CTCSS tone detection.
*
* @param tone: CTCSS tone frequency.
*/
void setRxCtcss(const tone_t tone);
/**
* Test if RX CTCSS tone has been detected.
*
* @return true if RX CTCSS tone has been detected.
*/
inline bool ctcssDetected()
{
uint8_t reg = readCfgRegister(0x93);
return ((reg & 0x01) != 0) ? true : false;
}
/**
* Disable CTCSS tone encode and decode.
*/
inline void disableCtcss()
{
writeCfgRegister(0xA1, 0x00); // Disable all tones
}
};
#endif /* HRC6000_H */