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Merge pull request #4484 from blazoncek/parallel-I2S

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WWA strip support & parallel I2S for S2/S3 (bumping outputs from 5/4 to 12)
This commit is contained in:
Blaž Kristan
2025-02-13 19:10:37 +01:00
parent dc3d463925
commit dbe76479a2
18 changed files with 870 additions and 722 deletions
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64
wled00/cfg.cpp
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@@ -118,6 +118,9 @@ bool deserializeConfig(JsonObject doc, bool fromFS) {
Bus::setCCTBlend(strip.cctBlending);
strip.setTargetFps(hw_led["fps"]); //NOP if 0, default 42 FPS
CJSON(useGlobalLedBuffer, hw_led[F("ld")]);
#if defined(ARDUINO_ARCH_ESP32) && !defined(CONFIG_IDF_TARGET_ESP32C3)
CJSON(useParallelI2S, hw_led[F("prl")]);
#endif
#ifndef WLED_DISABLE_2D
// 2D Matrix Settings
@@ -162,34 +165,6 @@ bool deserializeConfig(JsonObject doc, bool fromFS) {
DEBUG_PRINTF_P(PSTR("Heap before buses: %d\n"), ESP.getFreeHeap());
int s = 0; // bus iterator
if (fromFS) BusManager::removeAll(); // can't safely manipulate busses directly in network callback
unsigned mem = 0;
// determine if it is sensible to use parallel I2S outputs on ESP32 (i.e. more than 5 outputs = 1 I2S + 4 RMT)
bool useParallel = false;
#if defined(ARDUINO_ARCH_ESP32) && !defined(ARDUINO_ARCH_ESP32S2) && !defined(ARDUINO_ARCH_ESP32S3) && !defined(ARDUINO_ARCH_ESP32C3)
unsigned digitalCount = 0;
unsigned maxLedsOnBus = 0;
unsigned maxChannels = 0;
for (JsonObject elm : ins) {
unsigned type = elm["type"] | TYPE_WS2812_RGB;
unsigned len = elm["len"] | DEFAULT_LED_COUNT;
if (!Bus::isDigital(type)) continue;
if (!Bus::is2Pin(type)) {
digitalCount++;
unsigned channels = Bus::getNumberOfChannels(type);
if (len > maxLedsOnBus) maxLedsOnBus = len;
if (channels > maxChannels) maxChannels = channels;
}
}
DEBUG_PRINTF_P(PSTR("Maximum LEDs on a bus: %u\nDigital buses: %u\n"), maxLedsOnBus, digitalCount);
// we may remove 300 LEDs per bus limit when NeoPixelBus is updated beyond 2.9.0
if (maxLedsOnBus <= 300 && digitalCount > 5) {
DEBUG_PRINTLN(F("Switching to parallel I2S."));
useParallel = true;
BusManager::useParallelOutput();
mem = BusManager::memUsage(maxChannels, maxLedsOnBus, 8); // use alternate memory calculation
}
#endif
for (JsonObject elm : ins) {
if (s >= WLED_MAX_BUSSES+WLED_MIN_VIRTUAL_BUSSES) break;
@@ -220,24 +195,11 @@ bool deserializeConfig(JsonObject doc, bool fromFS) {
maMax = 0;
}
ledType |= refresh << 7; // hack bit 7 to indicate strip requires off refresh
if (fromFS) {
BusConfig bc = BusConfig(ledType, pins, start, length, colorOrder, reversed, skipFirst, AWmode, freqkHz, useGlobalLedBuffer, maPerLed, maMax);
if (useParallel && s < 8) {
// if for some unexplained reason the above pre-calculation was wrong, update
unsigned memT = BusManager::memUsage(bc); // includes x8 memory allocation for parallel I2S
if (memT > mem) mem = memT; // if we have unequal LED count use the largest
} else
mem += BusManager::memUsage(bc); // includes global buffer
if (mem <= MAX_LED_MEMORY) if (BusManager::add(bc) == -1) break; // finalization will be done in WLED::beginStrip()
} else {
if (busConfigs[s] != nullptr) delete busConfigs[s];
busConfigs[s] = new BusConfig(ledType, pins, start, length, colorOrder, reversed, skipFirst, AWmode, freqkHz, useGlobalLedBuffer, maPerLed, maMax);
doInitBusses = true; // finalization done in beginStrip()
}
busConfigs.push_back(std::move(BusConfig(ledType, pins, start, length, colorOrder, reversed, skipFirst, AWmode, freqkHz, useGlobalLedBuffer, maPerLed, maMax)));
doInitBusses = true; // finalization done in beginStrip()
s++;
}
DEBUG_PRINTF_P(PSTR("LED buffer size: %uB\n"), mem);
DEBUG_PRINTF_P(PSTR("Heap after buses: %d\n"), ESP.getFreeHeap());
}
if (hw_led["rev"]) BusManager::getBus(0)->setReversed(true); //set 0.11 global reversed setting for first bus
@@ -824,6 +786,9 @@ void serializeConfig() {
hw_led["fps"] = strip.getTargetFps();
hw_led[F("rgbwm")] = Bus::getGlobalAWMode(); // global auto white mode override
hw_led[F("ld")] = useGlobalLedBuffer;
#if defined(ARDUINO_ARCH_ESP32) && !defined(CONFIG_IDF_TARGET_ESP32C3)
hw_led[F("prl")] = BusManager::hasParallelOutput();
#endif
#ifndef WLED_DISABLE_2D
// 2D Matrix Settings
@@ -848,8 +813,19 @@ void serializeConfig() {
JsonArray hw_led_ins = hw_led.createNestedArray("ins");
for (size_t s = 0; s < BusManager::getNumBusses(); s++) {
DEBUG_PRINTF_P(PSTR("Cfg: Saving bus #%u\n"), s);
Bus *bus = BusManager::getBus(s);
if (!bus || bus->getLength()==0) break;
DEBUG_PRINTF_P(PSTR(" (%d-%d, type:%d, CO:%d, rev:%d, skip:%d, AW:%d kHz:%d, mA:%d/%d)\n"),
(int)bus->getStart(), (int)(bus->getStart()+bus->getLength()),
(int)(bus->getType() & 0x7F),
(int)bus->getColorOrder(),
(int)bus->isReversed(),
(int)bus->skippedLeds(),
(int)bus->getAutoWhiteMode(),
(int)bus->getFrequency(),
(int)bus->getLEDCurrent(), (int)bus->getMaxCurrent()
);
JsonObject ins = hw_led_ins.createNestedObject();
ins["start"] = bus->getStart();
ins["len"] = bus->getLength();