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Workarounds for bugs and functionality not in the Arduino ESP32 package

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This commit is contained in:
Harald Barth 2022-08-30 09:31:09 +02:00
parent 9dabf14aa3
commit 08427abe70
3 changed files with 91 additions and 0 deletions
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59
ESP32-fixes.cpp Normal file
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@ -0,0 +1,59 @@
/*
* © 2022 Harald Barth
* All rights reserved.
*
* This file is part of CommandStation-EX
*
* This 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.
*
* It 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 CommandStation. If not, see <https://www.gnu.org/licenses/>.
*/
#include <Arduino.h>
#include "ESP32-fixes.h"
#include "esp32-hal.h"
#include "soc/soc_caps.h"
#ifdef SOC_LEDC_SUPPORT_HS_MODE
#define LEDC_CHANNELS (SOC_LEDC_CHANNEL_NUM<<1)
#else
#define LEDC_CHANNELS (SOC_LEDC_CHANNEL_NUM)
#endif
static int8_t pin_to_channel[SOC_GPIO_PIN_COUNT] = { 0 };
static int cnt_channel = LEDC_CHANNELS;
void DCCEXanalogWriteFrequency(uint8_t pin, uint32_t frequency) {
if (pin < SOC_GPIO_PIN_COUNT) {
if (pin_to_channel[pin] != 0) {
ledcSetup(pin_to_channel[pin], frequency, 8);
}
}
}
void DCCEXanalogWrite(uint8_t pin, int value) {
if (pin < SOC_GPIO_PIN_COUNT) {
if (pin_to_channel[pin] == 0) {
if (!cnt_channel) {
log_e("No more PWM channels available! All %u already used", LEDC_CHANNELS);
return;
}
pin_to_channel[pin] = --cnt_channel;
ledcAttachPin(pin, cnt_channel);
ledcSetup(cnt_channel, 1000, 8);
} else {
ledcAttachPin(pin, pin_to_channel[pin]);
}
ledcWrite(pin_to_channel[pin], value);
}
}

24
ESP32-fixes.h Normal file
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@ -0,0 +1,24 @@
/*
* © 2022 Harald Barth
* All rights reserved.
*
* This file is part of CommandStation-EX
*
* This 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.
*
* It 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 CommandStation. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#include <Arduino.h>
void DCCEXanalogWriteFrequency(uint8_t pin, uint32_t frequency);
void DCCEXanalogWrite(uint8_t pin, int value);

8
MotorDriver.cpp
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@ -29,6 +29,7 @@
#define ADC_INPUT_MAX_VALUE 1023 // 10 bit ADC
#if defined(ARDUINO_ARCH_ESP32)
#include "ESP32-fixes.h"
#include <driver/adc.h>
#include <soc/sens_reg.h>
#include <soc/sens_struct.h>
@ -229,6 +230,9 @@ int MotorDriver::getCurrentRaw() {
void MotorDriver::setDCSignal(byte speedcode) {
if (brakePin == UNUSED_PIN)
return;
#if defined(ARDUINO_ARCH_ESP32)
DCCEXanalogWriteFrequency(brakePin, 100); // set DC PWM frequency to 100Hz XXX May move to setup
#endif
// spedcoode is a dcc speed & direction
byte tSpeed=speedcode & 0x7F; // DCC Speed with 0,1 stop and speed steps 2 to 127
byte tDir=speedcode & 0x80;
@ -238,7 +242,11 @@ void MotorDriver::setDCSignal(byte speedcode) {
else brake = 2 * (128-tSpeed);
if (invertBrake)
brake=255-brake;
#if defined(ARDUINO_ARCH_ESP32)
DCCEXanalogWrite(brakePin,brake);
#else
analogWrite(brakePin,brake);
#endif
//DIAG(F("DCSignal %d"), speedcode);
if (HAVE_PORTA(fastSignalPin.shadowinout == &PORTA)) {
noInterrupts();