Rolling 20210913

code/components/jomjol_controlGPIO/SmartLeds.cpp

@@ -0,0 +1,63 @@
+#include "SmartLeds.h"
+
+IsrCore SmartLed::_interruptCore = CoreCurrent;
+intr_handle_t SmartLed::_interruptHandle = NULL;
+
+SmartLed*& IRAM_ATTR SmartLed::ledForChannel( int channel ) {
+    static SmartLed* table[8] = { nullptr };
+    assert( channel < 8 );
+    return table[ channel ];
+}
+
+void IRAM_ATTR SmartLed::interruptHandler(void*) {
+    for (int channel = 0; channel != 8; channel++) {
+        auto self = ledForChannel( channel );
+
+        if ( RMT.int_st.val & (1 << (24 + channel ) ) ) { // tx_thr_event
+            if ( self )
+                self->copyRmtHalfBlock();
+            RMT.int_clr.val |= 1 << ( 24 + channel );
+        } else if ( RMT.int_st.val & ( 1 << (3 * channel ) ) ) { // tx_end
+            if ( self )
+                xSemaphoreGiveFromISR( self->_finishedFlag, nullptr );
+            RMT.int_clr.val |= 1 << ( 3 * channel );
+        }
+    }
+}
+
+void IRAM_ATTR SmartLed::copyRmtHalfBlock() {
+    int offset = detail::MAX_PULSES * _halfIdx;
+    _halfIdx = !_halfIdx;
+    int len = 3 - _componentPosition + 3 * ( _count - 1 );
+    len = std::min( len, detail::MAX_PULSES / 8 );
+
+    if ( !len ) {
+        for ( int i = 0; i < detail::MAX_PULSES; i++) {
+            RMTMEM.chan[ _channel].data32[i + offset ].val = 0;
+        }
+    }
+
+    int i;
+    for ( i = 0; i != len && _pixelPosition != _count; i++ ) {
+        uint8_t val = _buffer[ _pixelPosition ].getGrb( _componentPosition );
+        for ( int j = 0; j != 8; j++, val <<= 1 ) {
+            int bit = val >> 7;
+            int idx = i * 8 + offset + j;
+            RMTMEM.chan[ _channel ].data32[ idx ].val = _bitToRmt[ bit & 0x01 ].value;
+        }
+        if ( _pixelPosition == _count - 1 && _componentPosition == 2 ) {
+            RMTMEM.chan[ _channel ].data32[ i * 8 + offset + 7 ].duration1 =
+                _timing.TRS / ( detail::RMT_DURATION_NS * detail::DIVIDER );
+        }
+
+        _componentPosition++;
+        if ( _componentPosition == 3 ) {
+            _componentPosition = 0;
+            _pixelPosition++;
+        }
+    }
+
+    for ( i *= 8; i != detail::MAX_PULSES; i++ ) {
+        RMTMEM.chan[ _channel ].data32[ i + offset ].val = 0;
+    }
+}