Method freeDMA

src/platforms/esp/32/drivers/rmt/rmt_5/rmt_memory_manager.cpp.hpp:780–814

}

void RmtMemoryManager::freeDMA(u8 channel_id, bool is_tx) FL_NOEXCEPT {
#if FASTLED_RMT_STATIC_ALLOCATION
    // Static-allocation mode: see RmtMemoryManager::free() for rationale.
    // The destructor still reaches this; skipping the mismatch-diagnostic
    // FL_WARN sites lets the linker drop the operator<< chains. See #2856
    // item 3.6.
    (void)channel_id;
    (void)is_tx;
#elif FASTLED_RMT5_DMA_SUPPORTED
    if (!mDMAAllocation.allocated) {
        FL_WARN("DMA free called but no DMA allocated");
        return;
    }

    if (mDMAAllocation.channel_id != channel_id || mDMAAllocation.is_tx != is_tx) {
        FL_WARN("DMA free mismatch: expected "
                << (mDMAAllocation.is_tx ? "TX" : "RX") << " channel "
                << static_cast<int>(mDMAAllocation.channel_id)
                << ", got " << (is_tx ? "TX" : "RX") << " channel "
                << static_cast<int>(channel_id));
        return;
    }

    FL_LOG_RMT("DMA freed from " << (is_tx ? "TX" : "RX") << " channel "
               << static_cast<int>(channel_id)
               << " | DMA slots: 0/" << FASTLED_RMT5_MAX_DMA_CHANNELS);

    mDMAAllocation.allocated = false;
    mDMAAllocation.channel_id = 0;
    mDMAAllocation.is_tx = false;
#else
    (void)channel_id;
    (void)is_tx;
#endif
}

int RmtMemoryManager::getDMAChannelsInUse() const FL_NOEXCEPT {
#if FASTLED_RMT5_DMA_SUPPORTED