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ESP32 better fix for IRAM Bit Bang

This commit is contained in:
Stephan Hadinger 2021-03-07 10:16:08 +01:00
parent a1e2470338
commit a10564b5c5
3 changed files with 152 additions and 199 deletions
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115
lib/lib_basic/NeoPixelBus-2.6.1.4/src/internal/NeoEspBitBangMethod.cpp Normal file
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@ -0,0 +1,115 @@
/*-------------------------------------------------------------------------
NeoPixel library helper functions for Esp8266 and Esp32
Written by Michael C. Miller.
I invest time and resources providing this open source code,
please support me by dontating (see https://github.com/Makuna/NeoPixelBus)
-------------------------------------------------------------------------
This file is part of the Makuna/NeoPixelBus library.
NeoPixelBus is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
NeoPixelBus 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with NeoPixel. If not, see
<http://www.gnu.org/licenses/>.
-------------------------------------------------------------------------*/
#if defined(ARDUINO_ARCH_ESP8266) || defined(ARDUINO_ARCH_ESP32)
#include <Arduino.h>
#include "NeoEspBitBangMethod.h"
static inline uint32_t getCycleCount(void)
{
uint32_t ccount;
__asm__ __volatile__("rsr %0,ccount":"=a" (ccount));
return ccount;
}
void ICACHE_RAM_ATTR NeoEspBitBangBase_send_pixels(uint8_t* pixels, uint8_t* end, uint8_t pin, uint32_t t0h, uint32_t t1h, uint32_t period, uint8_t IdleLevel)
{
const uint32_t pinRegister = _BV(pin);
uint8_t mask = 0x80;
uint8_t subpix = *pixels++;
uint32_t cyclesStart = 0; // trigger emediately
uint32_t cyclesNext = 0;
for (;;)
{
// do the checks here while we are waiting on time to pass
uint32_t cyclesBit = t0h;
if (subpix & mask)
{
cyclesBit = t1h;
}
// after we have done as much work as needed for this next bit
// now wait for the HIGH
while (((cyclesStart = getCycleCount()) - cyclesNext) < period);
// set pin state
if (IdleLevel == LOW) {
#if defined(ARDUINO_ARCH_ESP32)
GPIO.out_w1ts = pinRegister;
#else
GPIO_REG_WRITE(GPIO_OUT_W1TS_ADDRESS, pinRegister);
#endif
} else {
#if defined(ARDUINO_ARCH_ESP32)
GPIO.out_w1tc = pinRegister;
#else
GPIO_REG_WRITE(GPIO_OUT_W1TC_ADDRESS, pinRegister);
#endif
}
// T_PINSET::setPin(pinRegister);
// wait for the LOW
while ((getCycleCount() - cyclesStart) < cyclesBit);
// reset pin start
if (IdleLevel == LOW) {
#if defined(ARDUINO_ARCH_ESP32)
GPIO.out_w1tc = pinRegister;
#else
GPIO_REG_WRITE(GPIO_OUT_W1TC_ADDRESS, pinRegister);
#endif
} else {
#if defined(ARDUINO_ARCH_ESP32)
GPIO.out_w1ts = pinRegister;
#else
GPIO_REG_WRITE(GPIO_OUT_W1TS_ADDRESS, pinRegister);
#endif
}
// T_PINSET::resetPin(pinRegister);
cyclesNext = cyclesStart;
// next bit
mask >>= 1;
if (mask == 0)
{
// no more bits to send in this byte
// check for another byte
if (pixels >= end)
{
// no more bytes to send so stop
break;
}
// reset mask to first bit and get the next byte
mask = 0x80;
subpix = *pixels++;
}
}
}
#endif

129
lib/lib_basic/NeoPixelBus-2.6.1.4/src/internal/NeoEspBitBangMethod.h
View File

@ -55,6 +55,14 @@ public:
const static uint32_t Period = (F_CPU / 800000 - CYCLES_LOOPTEST); // 1.25us per bit
};
class NeoEspSpeedTm1829
{
public:
const static uint32_t T0H = (F_CPU / 3333333 - CYCLES_LOOPTEST); // 0.3us
const static uint32_t T1H = (F_CPU / 1250000 - CYCLES_LOOPTEST); // 0.8us
const static uint32_t Period = (F_CPU / 800000 - CYCLES_LOOPTEST); // 1.25us per bit
};
class NeoEspSpeed800Mhz
{
public:
@ -83,109 +91,22 @@ class NeoEspPinset
{
public:
const static uint8_t IdleLevel = LOW;
inline static void setPin(const uint32_t pinRegister)
{
#if defined(ARDUINO_ARCH_ESP32)
GPIO.out_w1ts = pinRegister;
#else
GPIO_REG_WRITE(GPIO_OUT_W1TS_ADDRESS, pinRegister);
#endif
}
inline static void resetPin(const uint32_t pinRegister)
{
#if defined(ARDUINO_ARCH_ESP32)
GPIO.out_w1tc = pinRegister;
#else
GPIO_REG_WRITE(GPIO_OUT_W1TC_ADDRESS, pinRegister);
#endif
}
};
class NeoEspPinsetInverted
{
public:
const static uint8_t IdleLevel = HIGH;
inline static void setPin(const uint32_t pinRegister)
{
#if defined(ARDUINO_ARCH_ESP32)
GPIO.out_w1tc = pinRegister;
#else
GPIO_REG_WRITE(GPIO_OUT_W1TC_ADDRESS, pinRegister);
#endif
}
inline static void resetPin(const uint32_t pinRegister)
{
#if defined(ARDUINO_ARCH_ESP32)
GPIO.out_w1ts = pinRegister;
#else
GPIO_REG_WRITE(GPIO_OUT_W1TS_ADDRESS, pinRegister);
#endif
}
};
extern void NeoEspBitBangBase_send_pixels(uint8_t* pixels, uint8_t* end, uint8_t pin, uint32_t t0h, uint32_t t1h, uint32_t period, uint8_t IdleLevel);
template<typename T_SPEED, typename T_PINSET> class NeoEspBitBangBase
{
public:
__attribute__((noinline)) static void ICACHE_RAM_ATTR send_pixels(uint8_t* pixels, uint8_t* end, uint8_t pin)
static void send_pixels(uint8_t* pixels, uint8_t* end, uint8_t pin)
{
const uint32_t pinRegister = _BV(pin);
uint8_t mask = 0x80;
uint8_t subpix = *pixels++;
uint32_t cyclesStart = 0; // trigger emediately
uint32_t cyclesNext = 0;
for (;;)
{
// do the checks here while we are waiting on time to pass
uint32_t cyclesBit = T_SPEED::T0H;
if (subpix & mask)
{
cyclesBit = T_SPEED::T1H;
}
// after we have done as much work as needed for this next bit
// now wait for the HIGH
while (((cyclesStart = getCycleCount()) - cyclesNext) < T_SPEED::Period);
// set pin state
T_PINSET::setPin(pinRegister);
// wait for the LOW
while ((getCycleCount() - cyclesStart) < cyclesBit);
// reset pin start
T_PINSET::resetPin(pinRegister);
cyclesNext = cyclesStart;
// next bit
mask >>= 1;
if (mask == 0)
{
// no more bits to send in this byte
// check for another byte
if (pixels >= end)
{
// no more bytes to send so stop
break;
}
// reset mask to first bit and get the next byte
mask = 0x80;
subpix = *pixels++;
}
}
}
protected:
static inline uint32_t getCycleCount(void)
{
uint32_t ccount;
__asm__ __volatile__("rsr %0,ccount":"=a" (ccount));
return ccount;
NeoEspBitBangBase_send_pixels(pixels, end, pin, T_SPEED::T0H, T_SPEED::T1H, T_SPEED::Period, T_PINSET::IdleLevel);
}
};
@ -214,6 +135,13 @@ public:
static const uint32_t ResetTimeUs = 200;
};
// normal is inverted signal
class NeoEspBitBangSpeedTm1829 : public NeoEspBitBangBase<NeoEspSpeedTm1829, NeoEspPinsetInverted>
{
public:
static const uint32_t ResetTimeUs = 200;
};
class NeoEspBitBangSpeed800Kbps : public NeoEspBitBangBase<NeoEspSpeed800Mhz, NeoEspPinset>
{
public:
@ -257,6 +185,13 @@ public:
static const uint32_t ResetTimeUs = 200;
};
// normal is inverted signal, so inverted is normal
class NeoEspBitBangInvertedSpeedTm1829 : public NeoEspBitBangBase<NeoEspSpeedTm1829, NeoEspPinset>
{
public:
static const uint32_t ResetTimeUs = 200;
};
class NeoEspBitBangInvertedSpeed800Kbps : public NeoEspBitBangBase<NeoEspSpeed800Mhz, NeoEspPinsetInverted>
{
public:
@ -278,6 +213,8 @@ public:
template<typename T_SPEED, typename T_PINSET> class NeoEspBitBangMethodBase
{
public:
typedef NeoNoSettings SettingsObject;
NeoEspBitBangMethodBase(uint8_t pin, uint16_t pixelCount, size_t elementSize, size_t settingsSize) :
_sizeData(pixelCount * elementSize + settingsSize),
_pin(pin)
@ -354,6 +291,10 @@ public:
return _sizeData;
};
void applySettings(const SettingsObject& settings)
{
}
private:
const size_t _sizeData; // Size of '_data' buffer below
const uint8_t _pin; // output pin number
@ -369,6 +310,7 @@ typedef NeoEspBitBangMethodBase<NeoEspBitBangSpeedWs2811, NeoEspPinset> NeoEsp32
typedef NeoEspBitBangMethodBase<NeoEspBitBangSpeedWs2812x, NeoEspPinset> NeoEsp32BitBangWs2812xMethod;
typedef NeoEspBitBangMethodBase<NeoEspBitBangSpeedSk6812, NeoEspPinset> NeoEsp32BitBangSk6812Method;
typedef NeoEspBitBangMethodBase<NeoEspBitBangSpeedTm1814, NeoEspPinsetInverted> NeoEsp32BitBangTm1814Method;
typedef NeoEspBitBangMethodBase<NeoEspBitBangSpeedTm1829, NeoEspPinsetInverted> NeoEsp32BitBangTm1829Method;
typedef NeoEspBitBangMethodBase<NeoEspBitBangSpeed800Kbps, NeoEspPinset> NeoEsp32BitBang800KbpsMethod;
typedef NeoEspBitBangMethodBase<NeoEspBitBangSpeed400Kbps, NeoEspPinset> NeoEsp32BitBang400KbpsMethod;
typedef NeoEspBitBangMethodBase<NeoEspBitBangSpeedApa106, NeoEspPinset> NeoEsp32BitBangApa106Method;
@ -381,6 +323,7 @@ typedef NeoEspBitBangMethodBase<NeoEspBitBangInvertedSpeedWs2811, NeoEspPinsetIn
typedef NeoEspBitBangMethodBase<NeoEspBitBangInvertedSpeedWs2812x, NeoEspPinsetInverted> NeoEsp32BitBangWs2812xInvertedMethod;
typedef NeoEspBitBangMethodBase<NeoEspBitBangInvertedSpeedSk6812, NeoEspPinsetInverted> NeoEsp32BitBangSk6812InvertedMethod;
typedef NeoEspBitBangMethodBase<NeoEspBitBangInvertedSpeedTm1814, NeoEspPinset> NeoEsp32BitBangTm1814InvertedMethod;
typedef NeoEspBitBangMethodBase<NeoEspBitBangInvertedSpeedTm1829, NeoEspPinset> NeoEsp32BitBangTm1829InvertedMethod;
typedef NeoEspBitBangMethodBase<NeoEspBitBangInvertedSpeed800Kbps, NeoEspPinsetInverted> NeoEsp32BitBang800KbpsInvertedMethod;
typedef NeoEspBitBangMethodBase<NeoEspBitBangInvertedSpeed400Kbps, NeoEspPinsetInverted> NeoEsp32BitBang400KbpsInvertedMethod;
typedef NeoEspBitBangMethodBase<NeoEspBitBangInvertedSpeedApa106, NeoEspPinsetInverted> NeoEsp32BitBangApa106InvertedMethod;
@ -395,6 +338,7 @@ typedef NeoEspBitBangMethodBase<NeoEspBitBangSpeedWs2811, NeoEspPinset> NeoEsp82
typedef NeoEspBitBangMethodBase<NeoEspBitBangSpeedWs2812x, NeoEspPinset> NeoEsp8266BitBangWs2812xMethod;
typedef NeoEspBitBangMethodBase<NeoEspBitBangSpeedSk6812, NeoEspPinset> NeoEsp8266BitBangSk6812Method;
typedef NeoEspBitBangMethodBase<NeoEspBitBangSpeedTm1814, NeoEspPinsetInverted> NeoEsp8266BitBangTm1814Method;
typedef NeoEspBitBangMethodBase<NeoEspBitBangSpeedTm1829, NeoEspPinsetInverted> NeoEsp8266BitBangTm1829Method;
typedef NeoEspBitBangMethodBase<NeoEspBitBangSpeed800Kbps, NeoEspPinset> NeoEsp8266BitBang800KbpsMethod;
typedef NeoEspBitBangMethodBase<NeoEspBitBangSpeed400Kbps, NeoEspPinset> NeoEsp8266BitBang400KbpsMethod;
typedef NeoEspBitBangMethodBase<NeoEspBitBangSpeedApa106, NeoEspPinset> NeoEsp8266BitBangApa106Method;
@ -407,6 +351,7 @@ typedef NeoEspBitBangMethodBase<NeoEspBitBangInvertedSpeedWs2811, NeoEspPinsetIn
typedef NeoEspBitBangMethodBase<NeoEspBitBangInvertedSpeedWs2812x, NeoEspPinsetInverted> NeoEsp8266BitBangWs2812xInvertedMethod;
typedef NeoEspBitBangMethodBase<NeoEspBitBangInvertedSpeedSk6812, NeoEspPinsetInverted> NeoEsp8266BitBangSk6812InvertedMethod;
typedef NeoEspBitBangMethodBase<NeoEspBitBangInvertedSpeedTm1814, NeoEspPinset> NeoEsp8266BitBangTm1814InvertedMethod;
typedef NeoEspBitBangMethodBase<NeoEspBitBangInvertedSpeedTm1829, NeoEspPinset> NeoEsp8266BitBangTm1829InvertedMethod;
typedef NeoEspBitBangMethodBase<NeoEspBitBangInvertedSpeed800Kbps, NeoEspPinsetInverted> NeoEsp8266BitBang800KbpsInvertedMethod;
typedef NeoEspBitBangMethodBase<NeoEspBitBangInvertedSpeed400Kbps, NeoEspPinsetInverted> NeoEsp8266BitBang400KbpsInvertedMethod;
typedef NeoEspBitBangMethodBase<NeoEspBitBangInvertedSpeedApa106, NeoEspPinsetInverted> NeoEsp8266BitBangApa106InvertedMethod;
@ -418,4 +363,4 @@ typedef NeoEsp8266BitBangSk6812InvertedMethod NeoEsp8266BitBangLc8812InvertedMet
#endif
// ESP bitbang doesn't have defaults and should avoided except for testing
#endif
#endif

107
tasmota/xlgt_01_ws2812.ino
View File

@ -123,113 +123,6 @@ void (* const Ws2812Command[])(void) PROGMEM = {
#endif // No USE_WS2812_DMA
#ifdef ESP32
//
// Below is a quick work-around to ESP32 gcc that prevents templated methods to be in IRAM unless explicitly marked per specialization
// It will work only for the default WS2812 (800KHz) and inverted and non-inverted
//
template <>
void IRAM_ATTR NeoEspBitBangBase<NeoEspSpeed800Mhz, NeoEspPinset>::send_pixels(uint8_t* pixels, uint8_t* end, uint8_t pin)
{
const uint32_t pinRegister = _BV(pin);
uint8_t mask = 0x80;
uint8_t subpix = *pixels++;
uint32_t cyclesStart = 0; // trigger emediately
uint32_t cyclesNext = 0;
for (;;)
{
// do the checks here while we are waiting on time to pass
uint32_t cyclesBit = NeoEspSpeed800Mhz::T0H;
if (subpix & mask)
{
cyclesBit = NeoEspSpeed800Mhz::T1H;
}
// after we have done as much work as needed for this next bit
// now wait for the HIGH
while (((cyclesStart = getCycleCount()) - cyclesNext) < NeoEspSpeed800Mhz::Period);
// set pin state
NeoEspPinset::setPin(pinRegister);
// wait for the LOW
while ((getCycleCount() - cyclesStart) < cyclesBit);
// reset pin start
NeoEspPinset::resetPin(pinRegister);
cyclesNext = cyclesStart;
// next bit
mask >>= 1;
if (mask == 0)
{
// no more bits to send in this byte
// check for another byte
if (pixels >= end)
{
// no more bytes to send so stop
break;
}
// reset mask to first bit and get the next byte
mask = 0x80;
subpix = *pixels++;
}
}
}
template <>
void IRAM_ATTR NeoEspBitBangBase<NeoEspSpeed800Mhz, NeoEspPinsetInverted>::send_pixels(uint8_t* pixels, uint8_t* end, uint8_t pin)
{
const uint32_t pinRegister = _BV(pin);
uint8_t mask = 0x80;
uint8_t subpix = *pixels++;
uint32_t cyclesStart = 0; // trigger emediately
uint32_t cyclesNext = 0;
for (;;)
{
// do the checks here while we are waiting on time to pass
uint32_t cyclesBit = NeoEspSpeed800Mhz::T0H;
if (subpix & mask)
{
cyclesBit = NeoEspSpeed800Mhz::T1H;
}
// after we have done as much work as needed for this next bit
// now wait for the HIGH
while (((cyclesStart = getCycleCount()) - cyclesNext) < NeoEspSpeed800Mhz::Period);
// set pin state
NeoEspPinsetInverted::setPin(pinRegister);
// wait for the LOW
while ((getCycleCount() - cyclesStart) < cyclesBit);
// reset pin start
NeoEspPinsetInverted::resetPin(pinRegister);
cyclesNext = cyclesStart;
// next bit
mask >>= 1;
if (mask == 0)
{
// no more bits to send in this byte
// check for another byte
if (pixels >= end)
{
// no more bytes to send so stop
break;
}
// reset mask to first bit and get the next byte
mask = 0x80;
subpix = *pixels++;
}
}
}
#endif // ESP32
NeoPixelBus<selectedNeoFeatureType, selectedNeoSpeedType> *strip = nullptr;
struct WsColor {