80 lines
2.0 KiB
C++
80 lines
2.0 KiB
C++
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#if 0
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#include "Particle.h"
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#include "../Input.h"
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#include "../colors.h"
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#include "../Static.h"
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volatile uint8_t DmxRxField[8];
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volatile uint16_t DmxAddress;
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enum { IDLE, BREAK, STARTB, STARTADR };
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volatile uint8_t gDmxState;
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class DMXInput: public InputSource {
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public:
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void init() {
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UCSR1B = (1<<RXEN1) | (1<<RXCE1);
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Serial1.begin(250000, SERIAL_8N2);
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}
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static void handleInterrupt() {
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static uint16_t DmxCount;
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uint8_t USARTstate = UCSR1A;
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uint8_t DmxByte = UDR1;
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uint8_t DmxState = gDmxState;
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if (USARTstate &(1<<FE1)) {
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DmxCount = DmxAddress;
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gDmxState = BREAK;
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} else if (DmxState == BREAK) {
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if (DmxByte == 0) {
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gDmxState = STARTB;
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} else {
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gDmxState = IDLE;
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}
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} else if (DmxState == STARTB) {
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if (--DmxCount == 0) {
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DmxCount = 1;
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DmxRxField[0] = DmxByte;
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gDmxState = STARTADR;
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}
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} else if (DmxState == STARTADR) {
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DmxRxField[DmxCount++] = DmxByte;
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if (DmxCount >= sizeof(DmxRxField)) {
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gDmxState = IDLE;
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}
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}
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}
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virtual void update() override {
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bool hasUpdate = false;
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if (gDmxState == IDLE) {
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for(int i = 0; i < 8; i++) {
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if (m_lastReadFields[i] != DmxRxField[i]) {
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hasUpdate = true;
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m_lastReadFields[i] = DmxRxField[i];
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}
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}
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}
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if (hasUpdate) {
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m_lastReadEvent = InputEvent(InputEvent::SetColor, {m_lastReadFields[0], m_lastReadFields[1], m_lastReadFields[2]});
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}
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m_lastEvent = m_lastReadEvent;
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m_lastReadEvent = InputEvent();
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}
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virtual InputEvent read() const override {
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return m_lastEvent;
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}
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private:
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InputEvent m_lastEvent;
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InputEvent m_lastReadEvent;
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uint8_t m_lastReadFields[8];
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};
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ISR(USART1_RX_vect) {
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DMXInput::handleInterrupt();
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}
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#endif
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