Files
edgetx-gx12/radio/src/hal/adc_driver.cpp
T
rotormanandRisto 80a51837c1 Automatically detect FlySky digital hall sticks on X10-class radios without necessity of build-time CMake option FLYSKY_HALL_STICKS.
Added special UART4 init to sample if FlySky sticks are present or not.
Added boolean globalData.flyskygimbals to save the detection result.
Removed FLYSKY_HALL_STICKS and FLYSKY_HALL_STICKS_REVERSE CMake build options.

Tested on two RM TX16S radios, one with FlySky digital hall sticks and second with stock analog sticks.
2021-11-19 21:33:03 +01:00

201 lines
6.1 KiB
C++

/*
* Copyright (C) EdgeTx
*
* Based on code named
* opentx - https://github.com/opentx/opentx
* th9x - http://code.google.com/p/th9x
* er9x - http://code.google.com/p/er9x
* gruvin9x - http://code.google.com/p/gruvin9x
*
* License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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.
*/
#include "adc_driver.h"
#include "board.h"
// IS_POT_SLIDER_AVAILABLE()
#include "opentx.h"
const etx_hal_adc_driver_t* etx_hal_adc_driver = nullptr;
#if defined(SIMU)
// not needed
#elif defined(RADIO_T16)
const int8_t adcDirection[NUM_ANALOGS] = {1,-1,1,-1, 1,1,1, -1,1,1,1, -1,1 };
#elif defined(RADIO_T18)
const int8_t adcDirection[NUM_ANALOGS] = {1,-1,1,-1, -1,1,-1, -1,1,1,1, -1,1 };
#elif defined(RADIO_TX16S)
const int8_t adcDirection[NUM_ANALOGS] = {1,-1,1,-1, 1,1,1, -1,1,1,1, -1,1 };
#elif defined(PCBX10)
const int8_t adcDirection[NUM_ANALOGS] = {1,-1,1,-1, -1,1,-1, 1,1,1,1, 1,-1 };
#elif defined(PCBX9E)
const int8_t adcDirection[NUM_ANALOGS] = {
#if defined(HORUS_STICKS)
1,-1,1,-1,
#else
1,1,-1,-1,
#endif // HORUS_STICKS
// other analogs are the same
-1,-1,-1,1, -1,1,1,-1, -1,-1 };
const uint8_t adcMapping[NUM_ANALOGS] = { 0 /*STICK1*/, 1 /*STICK2*/, 2 /*STICK3*/, 3 /*STICK4*/,
11 /*POT1*/, 4 /*POT2*/, 5 /*POT3*/, 6 /*POT4*/,
12 /*SLIDER1*/, 13 /*SLIDER2*/, 7 /*SLIDER3*/, 8 /*SLIDER4*/,
9 /*TX_VOLTAGE*/, 10 /*TX_VBAT*/ };
#elif defined(PCBX9DP)
const int8_t adcDirection[NUM_ANALOGS] = {1,-1,1,-1, 1,1,-1, 1,1, 1, 1};
#elif defined(PCBX9D)
const int8_t adcDirection[NUM_ANALOGS] = {1,-1,1,-1, 1,1,0, 1,1, 1, 1};
#elif defined(RADIO_TX12)
const int8_t adcDirection[NUM_ANALOGS] = {-1,1,-1,1, -1,-1, 1, 1};
#elif defined(PCBX7)
const int8_t adcDirection[NUM_ANALOGS] = {-1,1,-1,1, 1,1, 1, 1};
#elif defined(PCBX9LITE)
const int8_t adcDirection[NUM_ANALOGS] = {-1,1,-1,1, 1,1, 1};
#elif defined(PCBXLITE)
const int8_t adcDirection[NUM_ANALOGS] = {1,-1,-1,1, -1,1, 1, 1};
#elif defined(PCBNV14)
const uint8_t adcMapping[NUM_ANALOGS] = { 0 /*STICK1*/, 1 /*STICK2*/, 2 /*STICK3*/, 3 /*STICK4*/,
4 /*POT1*/, 5 /*POT2*/, 6 /*SWA*/, 14 /*SWB*/,
7 /*SWC*/, 15 /*SWD*/, 8 /*SWE*/, 9 /*SWF*/,
11/*SWG*/, 10/*SWH*/,
12 /*TX_VOLTAGE*/, 13 /* TX_VBAT */ };
const int8_t adcDirection[NUM_ANALOGS] = { 0 /*STICK1*/, 0 /*STICK2*/, 0 /*STICK3*/, 0 /*STICK4*/,
-1 /*POT1*/, 0 /*POT2*/, 0 /*SWA*/, 0 /*SWC*/,
0 /*SWE*/, -1 /*SWF*/, 0 /*SWG*/, -1 /*SWH*/,
0 /*TX_VOLTAGE*/, 0 /*TX_VBAT*/,
0 /*SWB*/, 0 /*SWD*/};
#elif defined(PCBX12S)
const int8_t adcDirection[NUM_ANALOGS] = {1,-1,1,-1, -1,1,-1, -1,-1, -1,1, 0,0,0};
#else
#error "ADC driver does not suppport this target"
#endif
uint16_t adcValues[NUM_ANALOGS] __DMA;
#if defined(PCBX10) || defined(PCBX12S)
uint16_t rtcBatteryVoltage;
#endif
bool adcInit(const etx_hal_adc_driver_t* driver)
{
etx_hal_adc_driver = driver;
if (!etx_hal_adc_driver)
return false;
// If there is an init function
// it should succeed
if (etx_hal_adc_driver->init &&
!etx_hal_adc_driver->init()) {
return false;
}
return true;
}
static bool adcSingleRead()
{
if (!etx_hal_adc_driver)
return false;
if (etx_hal_adc_driver->start_conversion &&
!etx_hal_adc_driver->start_conversion())
return false;
if (etx_hal_adc_driver->wait_completion)
etx_hal_adc_driver->wait_completion();
return true;
}
// Declare adcRead() weak so it can be re-declared
#pragma weak adcRead
bool adcRead()
{
uint16_t temp[NUM_ANALOGS] = { 0 };
uint8_t first_analog_adc;
#if defined(RADIO_FAMILY_T16) || defined(PCBNV14)
if (globalData.flyskygimbals)
{
first_analog_adc = FIRST_ANALOG_ADC_FS;
} else
{
first_analog_adc = FIRST_ANALOG_ADC;
}
#else
first_analog_adc = FIRST_ANALOG_ADC;
#endif
for (int i=0; i<4; i++) {
if (!adcSingleRead())
return false;
for (uint8_t x=first_analog_adc; x<NUM_ANALOGS; x++) {
uint16_t val = adcValues[x];
#if defined(JITTER_MEASURE)
if (JITTER_MEASURE_ACTIVE()) {
rawJitter[x].measure(val);
}
#endif
temp[x] += val;
}
}
for (uint8_t x=first_analog_adc; x<NUM_ANALOGS; x++) {
adcValues[x] = temp[x] >> 2;
}
#if NUM_PWMSTICKS > 0
if (STICKS_PWM_ENABLED()) {
sticksPwmRead(adcValues);
}
#endif
return true;
}
#if !defined(SIMU)
uint16_t getRTCBatteryVoltage()
{
#if defined(HAS_TX_RTC_VOLTAGE)
return (getAnalogValue(TX_RTC_VOLTAGE) * ADC_VREF_PREC2) / 2048;
#elif defined(PCBX10) || defined(PCBX12S)
return (rtcBatteryVoltage * 2 * ADC_VREF_PREC2) / 2048;
#elif defined(PCBNV14)
#warning "TODO RTC voltage"
return 330;
#else
#warning "RTC battery not supported on this target"
return 0;
#endif
}
uint16_t getAnalogValue(uint8_t index)
{
if (IS_POT(index) && !IS_POT_SLIDER_AVAILABLE(index)) {
// Use fixed analog value for non-existing and/or non-connected pots.
// Non-connected analog inputs will slightly follow the adjacent connected analog inputs,
// which produces ghost readings on these inputs.
return 0;
}
#if defined(PCBX9E) || defined(PCBNV14)
index = adcMapping[index];
#endif
if (adcDirection[index] < 0)
return 4095 - adcValues[index];
else
return adcValues[index];
}
#endif // #if !defined(SIMU)