#ifndef __INC_CHIPSETS_H
#define __INC_CHIPSETS_H

#include "FastLED.h"
#include "pixeltypes.h"
#include "five_bit_hd_gamma.h"
#include "force_inline.h"
#include "pixel_iterator.h"

/// @file chipsets.h
/// Contains the bulk of the definitions for the various LED chipsets supported.

FASTLED_NAMESPACE_BEGIN

/// @defgroup Chipsets LED Chipset Controllers
/// Implementations of ::CLEDController classes for various led chipsets.
///
/// @{

#if defined(ARDUINO) //&& defined(SoftwareSerial_h)


#if defined(SoftwareSerial_h) || defined(__SoftwareSerial_h)
#include <SoftwareSerial.h>

#define HAS_PIXIE

/// Adafruit Pixie controller class
/// @tparam DATA_PIN the pin to write data out on
/// @tparam RGB_ORDER the RGB ordering for the LED data
template<uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class PixieController : public CPixelLEDController<RGB_ORDER> {
	SoftwareSerial Serial;
	CMinWait<2000> mWait;

public:
	PixieController() : Serial(-1, DATA_PIN) {}

protected:
	/// Initialize the controller
	virtual void init() {
		Serial.begin(115200);
		mWait.mark();
	}

	/// @copydoc CPixelLEDController::showPixels()
	virtual void showPixels(PixelController<RGB_ORDER> & pixels) {
		mWait.wait();
		while(pixels.has(1)) {
			uint8_t r = pixels.loadAndScale0();
			Serial.write(r);
			uint8_t g = pixels.loadAndScale1();
			Serial.write(g);
			uint8_t b = pixels.loadAndScale2();
			Serial.write(b);
			pixels.advanceData();
			pixels.stepDithering();
		}
		mWait.mark();
	}

};

// template<SoftwareSerial & STREAM, EOrder RGB_ORDER = RGB>
// class PixieController : public PixieBaseController<STREAM, RGB_ORDER> {
// public:
// 	virtual void init() {
// 		STREAM.begin(115200);
// 	}
// };
#endif
#endif

// Emulution layer to support RGBW leds on RGB controllers. This works by creating
// a side buffer dedicated for the RGBW data. The RGB data is then converted to RGBW
// and sent to the delegate controller for rendering as if it were RGB data.
template <
	typename CONTROLLER,
	EOrder RGB_ORDER = GRB>  // Default on WS2812>
class RGBWEmulatedController
    : public CPixelLEDController<RGB_ORDER, CONTROLLER::LANES_VALUE,
                                 CONTROLLER::MASK_VALUE> {
  public:
    static const int LANES = CONTROLLER::LANES_VALUE;
    static const uint32_t MASK = CONTROLLER::MASK_VALUE;

    // The delegated controller must do no reordering.
    static_assert(RGB == CONTROLLER::RGB_ORDER_VALUE);

    RGBWEmulatedController(const Rgbw& rgbw = RgbwDefault()) {
        this->setRgbw(rgbw);
    };
    ~RGBWEmulatedController() { delete[] mRGBWPixels; }

    virtual void showPixels(PixelController<RGB_ORDER, LANES, MASK> &pixels) {
        // Ensure buffer is large enough
        ensureBuffer(pixels.size());
        // This version sent down to the real controller.
        PixelController<RGB, LANES, MASK> pixels_device(pixels);
        pixels_device.mScale = CRGB(255, 255, 255); // No scaling because we do that.
        pixels_device.mData = reinterpret_cast<uint8_t *>(mRGBWPixels);
        pixels_device.mLen = mNumRGBWLeds;
        pixels_device.mLenRemaining = mNumRGBWLeds;
        uint8_t *data = reinterpret_cast<uint8_t *>(mRGBWPixels);
        PixelIterator iterator = pixels.as_iterator(this->getRgbw());
        while (iterator.has(1)) {
            pixels.stepDithering();
            iterator.loadAndScaleRGBW(data, data + 1, data + 2, data + 3);
            data += 4;
            iterator.advanceData();
        }
        // cast to base class to get around protected/private access issues
        CPixelLEDController<RGB, LANES, MASK> &base = mController;
        base.showPixels(pixels_device);
    }

  private:
    // Needed by the interface.
    void init() override {}

    void ensureBuffer(int32_t num_leds) {
        if (num_leds != mNumRGBLeds) {
            mNumRGBLeds = num_leds;
            // The delegate controller expects the raw pixel byte data in multiples of 3.
            // In the case of src data not a multiple of 3, then we need to
            // add pad bytes so that the delegate controller doesn't walk off the end
            // of the array and invoke a buffer overflow panic.
            mNumRGBWLeds = (num_leds * 4 + 2) / 3; // Round up to nearest multiple of 3
            size_t extra = mNumRGBWLeds % 3 ? 1 : 0;
            delete[] mRGBWPixels;
            mRGBWPixels = new CRGB[mNumRGBWLeds + extra];
        }
    }

    CRGB *mRGBWPixels = nullptr;
    int32_t mNumRGBLeds = 0;
    int32_t mNumRGBWLeds = 0;
    CONTROLLER mController; // Real controller.
};

/// @defgroup ClockedChipsets Clocked Chipsets
/// Nominally SPI based, these chipsets have a data and a clock line.
/// @{

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// LPD8806 controller class - takes data/clock/select pin values (N.B. should take an SPI definition?)
//
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

/// LPD8806 controller class.
/// @tparam DATA_PIN the data pin for these LEDs
/// @tparam CLOCK_PIN the clock pin for these LEDs
/// @tparam RGB_ORDER the RGB ordering for these LEDs
/// @tparam SPI_SPEED the clock divider used for these LEDs.  Set using the ::DATA_RATE_MHZ / ::DATA_RATE_KHZ macros.  Defaults to ::DATA_RATE_MHZ(12)
template <uint8_t DATA_PIN, uint8_t CLOCK_PIN, EOrder RGB_ORDER = RGB,  uint32_t SPI_SPEED = DATA_RATE_MHZ(12) >
class LPD8806Controller : public CPixelLEDController<RGB_ORDER> {
	typedef SPIOutput<DATA_PIN, CLOCK_PIN, SPI_SPEED> SPI;

	class LPD8806_ADJUST {
	public:
		// LPD8806 spec wants the high bit of every rgb data byte sent out to be set.
		FASTLED_FORCE_INLINE static uint8_t adjust(FASTLED_REGISTER uint8_t data) { return ((data>>1) | 0x80) + ((data && (data<254)) & 0x01); }
		FASTLED_FORCE_INLINE static void postBlock(int len, void* context = NULL) {
			SPI* pSPI = static_cast<SPI*>(context);
			pSPI->writeBytesValueRaw(0, ((len*3+63)>>6));
		}

	};

	SPI mSPI;

public:
	LPD8806Controller()  {}
	virtual void init() {
		mSPI.init();
	}

protected:

	/// @copydoc CPixelLEDController::showPixels()
	virtual void showPixels(PixelController<RGB_ORDER> & pixels) {
		mSPI.template writePixels<0, LPD8806_ADJUST, RGB_ORDER>(pixels, &mSPI);
	}
};


//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// WS2801 definition - takes data/clock/select pin values (N.B. should take an SPI definition?)
//
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

/// WS2801 controller class.
/// @tparam DATA_PIN the data pin for these LEDs
/// @tparam CLOCK_PIN the clock pin for these LEDs
/// @tparam RGB_ORDER the RGB ordering for these LEDs
/// @tparam SPI_SPEED the clock divider used for these LEDs.  Set using the ::DATA_RATE_MHZ / ::DATA_RATE_KHZ macros.  Defaults to ::DATA_RATE_MHZ(1)
template <uint8_t DATA_PIN, uint8_t CLOCK_PIN, EOrder RGB_ORDER = RGB, uint32_t SPI_SPEED = DATA_RATE_MHZ(1)>
class WS2801Controller : public CPixelLEDController<RGB_ORDER> {
	typedef SPIOutput<DATA_PIN, CLOCK_PIN, SPI_SPEED> SPI;
	SPI mSPI;
	CMinWait<1000>  mWaitDelay;

public:
	WS2801Controller() {}

	/// Initialize the controller
	virtual void init() {
		mSPI.init();
	  mWaitDelay.mark();
	}

protected:

	/// @copydoc CPixelLEDController::showPixels()
	virtual void showPixels(PixelController<RGB_ORDER> & pixels) {
		mWaitDelay.wait();
		mSPI.template writePixels<0, DATA_NOP, RGB_ORDER>(pixels, NULL);
		mWaitDelay.mark();
	}
};

/// WS2803 controller class.
/// @copydetails WS2801Controller
template <uint8_t DATA_PIN, uint8_t CLOCK_PIN, EOrder RGB_ORDER = RGB, uint32_t SPI_SPEED = DATA_RATE_MHZ(25)>
class WS2803Controller : public WS2801Controller<DATA_PIN, CLOCK_PIN, RGB_ORDER, SPI_SPEED> {};

/// LPD6803 controller class (LPD1101).
/// 16 bit (1 bit const "1", 5 bit red, 5 bit green, 5 bit blue).
/// In chip CMODE pin must be set to 1 (inside oscillator mode).
/// @tparam DATA_PIN the data pin for these LEDs
/// @tparam CLOCK_PIN the clock pin for these LEDs
/// @tparam RGB_ORDER the RGB ordering for these LEDs
/// @tparam SPI_SPEED the clock divider used for these LEDs.  Set using the ::DATA_RATE_MHZ / ::DATA_RATE_KHZ macros.  Defaults to ::DATA_RATE_MHZ(12)
/// @see Datasheet: https://cdn-shop.adafruit.com/datasheets/LPD6803.pdf
template <uint8_t DATA_PIN, uint8_t CLOCK_PIN, EOrder RGB_ORDER = RGB, uint32_t SPI_SPEED = DATA_RATE_MHZ(12)>
class LPD6803Controller : public CPixelLEDController<RGB_ORDER> {
	typedef SPIOutput<DATA_PIN, CLOCK_PIN, SPI_SPEED> SPI;
	SPI mSPI;

	void startBoundary() { mSPI.writeByte(0); mSPI.writeByte(0); mSPI.writeByte(0); mSPI.writeByte(0); }
	void endBoundary(int nLeds) { int nDWords = (nLeds/32); do { mSPI.writeByte(0xFF); mSPI.writeByte(0x00); mSPI.writeByte(0x00); mSPI.writeByte(0x00); } while(nDWords--); }

public:
	LPD6803Controller() {}

	virtual void init() {
		mSPI.init();
	}

protected:
	/// @copydoc CPixelLEDController::showPixels()
	virtual void showPixels(PixelController<RGB_ORDER> & pixels) {
		mSPI.select();

		startBoundary();
		while(pixels.has(1)) {
            FASTLED_REGISTER uint16_t command;
            command = 0x8000;
            command |= (pixels.loadAndScale0() & 0xF8) << 7; // red is the high 5 bits
            command |= (pixels.loadAndScale1() & 0xF8) << 2; // green is the middle 5 bits
			mSPI.writeByte((command >> 8) & 0xFF);
            command |= pixels.loadAndScale2() >> 3 ; // blue is the low 5 bits
			mSPI.writeByte(command & 0xFF);

			pixels.stepDithering();
			pixels.advanceData();
		}
		endBoundary(pixels.size());
		mSPI.waitFully();
		mSPI.release();
	}

};

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// APA102 definition - takes data/clock/select pin values (N.B. should take an SPI definition?)
//
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

/// APA102 controller class.
/// @tparam DATA_PIN the data pin for these LEDs
/// @tparam CLOCK_PIN the clock pin for these LEDs
/// @tparam RGB_ORDER the RGB ordering for these LEDs
/// @tparam SPI_SPEED the clock divider used for these LEDs.  Set using the ::DATA_RATE_MHZ / ::DATA_RATE_KHZ macros.  Defaults to ::DATA_RATE_MHZ(12)
template <
	uint8_t DATA_PIN, uint8_t CLOCK_PIN,
	EOrder RGB_ORDER = RGB,
	// APA102 has a bug where long strip can't handle full speed due to clock degredation.
	// This only affects long strips, but then again if you have a short strip does 6 mhz actually slow
	// you down?  Probably not. And you can always bump it up for speed. Therefore we are prioritizing
	// "just works" over "fastest possible" here.
	// https://www.pjrc.com/why-apa102-leds-have-trouble-at-24-mhz/
	uint32_t SPI_SPEED = DATA_RATE_MHZ(6),
	FiveBitGammaCorrectionMode GAMMA_CORRECTION_MODE = kFiveBitGammaCorrectionMode_Null,
	uint32_t START_FRAME = 0x00000000,
	uint32_t END_FRAME = 0xFF000000
>
class APA102Controller : public CPixelLEDController<RGB_ORDER> {
	typedef SPIOutput<DATA_PIN, CLOCK_PIN, SPI_SPEED> SPI;
	SPI mSPI;

	void startBoundary() {
		mSPI.writeWord(START_FRAME >> 16);
		mSPI.writeWord(START_FRAME & 0xFFFF);
	}
	void endBoundary(int nLeds) {
		int nDWords = (nLeds/32);
		const uint8_t b0 = uint8_t(END_FRAME >> 24 & 0x000000ff);
		const uint8_t b1 = uint8_t(END_FRAME >> 16 & 0x000000ff);
		const uint8_t b2 = uint8_t(END_FRAME >>  8 & 0x000000ff);
		const uint8_t b3 = uint8_t(END_FRAME >>  0 & 0x000000ff);
		do {
			mSPI.writeByte(b0);
			mSPI.writeByte(b1);
			mSPI.writeByte(b2);
			mSPI.writeByte(b3);
		} while(nDWords--);
	}

	inline void writeLed(uint8_t brightness, uint8_t b0, uint8_t b1, uint8_t b2) __attribute__((always_inline)) {
#ifdef FASTLED_SPI_BYTE_ONLY
		mSPI.writeByte(0xE0 | brightness);
		mSPI.writeByte(b0);
		mSPI.writeByte(b1);
		mSPI.writeByte(b2);
#else
		uint16_t b = 0xE000 | (brightness << 8) | (uint16_t)b0;
		mSPI.writeWord(b);
		uint16_t w = b1 << 8;
		w |= b2;
		mSPI.writeWord(w);
#endif
	}

	inline void write2Bytes(uint8_t b1, uint8_t b2) __attribute__((always_inline)) {
#ifdef FASTLED_SPI_BYTE_ONLY
		mSPI.writeByte(b1);
		mSPI.writeByte(b2);
#else
		mSPI.writeWord(uint16_t(b1) << 8 | b2);
#endif
	}

public:
	APA102Controller() {}

	virtual void init() {
		mSPI.init();
	}

protected:
	/// @copydoc CPixelLEDController::showPixels()
	virtual void showPixels(PixelController<RGB_ORDER> & pixels) {
		PixelIterator iterator = pixels.as_iterator(this->getRgbw());
		switch (GAMMA_CORRECTION_MODE) {
			case kFiveBitGammaCorrectionMode_Null: {
				showPixelsDefault(iterator);
				break;
			}
			case kFiveBitGammaCorrectionMode_BitShift: {
				showPixelsGammaBitShift(iterator);
				break;
			}
		}
	}

private:

	static inline void getGlobalBrightnessAndScalingFactors(
		    PixelIterator& pixels,
		    uint8_t* out_s0, uint8_t* out_s1, uint8_t* out_s2, uint8_t* out_brightness) {
		uint8_t s0, s1, s2;
		pixels.loadAndScaleRGB(&s0, &s1, &s2);
#if FASTLED_USE_GLOBAL_BRIGHTNESS == 1
		// This function is pure magic.
		const uint16_t maxBrightness = 0x1F;
		uint16_t brightness = ((((uint16_t)max(max(s0, s1), s2) + 1) * maxBrightness - 1) >> 8) + 1;
		s0 = (maxBrightness * s0 + (brightness >> 1)) / brightness;
		s1 = (maxBrightness * s1 + (brightness >> 1)) / brightness;
		s2 = (maxBrightness * s2 + (brightness >> 1)) / brightness;
#else
		const uint8_t brightness = 0x1F;
#endif
		*out_s0 = s0;
		*out_s1 = s1;
		*out_s2 = s2;
		*out_brightness = static_cast<uint8_t>(brightness);
	}

	// Legacy showPixels implementation.
	inline void showPixelsDefault(PixelIterator& pixels) {
		mSPI.select();
		uint8_t s0, s1, s2, global_brightness;
		getGlobalBrightnessAndScalingFactors(pixels, &s0, &s1, &s2, &global_brightness);
		startBoundary();
		while (pixels.has(1)) {
			uint8_t c0, c1, c2;
			pixels.loadAndScaleRGB(&c0, &c1, &c2);
			writeLed(global_brightness, c0, c1, c2);
			pixels.stepDithering();
			pixels.advanceData();
		}
		endBoundary(pixels.size());

		mSPI.waitFully();
		mSPI.release();
	}

	inline void showPixelsGammaBitShift(PixelIterator& pixels) {
		mSPI.select();
		startBoundary();
		while (pixels.has(1)) {
			// Load raw uncorrected r,g,b values.
			uint8_t brightness, c0, c1, c2;  // c0-c2 is the RGB data re-ordered for pixel
			pixels.loadAndScale_APA102_HD(&c0, &c1, &c2, &brightness);
			writeLed(brightness, c0, c1, c2);
			pixels.stepDithering();
			pixels.advanceData();
		}
		endBoundary(pixels.size());
		mSPI.waitFully();
		mSPI.release();
	}
};

/// APA102 high definition controller class.
/// @tparam DATA_PIN the data pin for these LEDs
/// @tparam CLOCK_PIN the clock pin for these LEDs
/// @tparam RGB_ORDER the RGB ordering for these LEDs
/// @tparam SPI_SPEED the clock divider used for these LEDs.  Set using the ::DATA_RATE_MHZ / ::DATA_RATE_KHZ macros.  Defaults to ::DATA_RATE_MHZ(24)
template <
	uint8_t DATA_PIN,
	uint8_t CLOCK_PIN,
	EOrder RGB_ORDER = RGB,
	// APA102 has a bug where long strip can't handle full speed due to clock degredation.
	// This only affects long strips, but then again if you have a short strip does 6 mhz actually slow
	// you down?  Probably not. And you can always bump it up for speed. Therefore we are prioritizing
	// "just works" over "fastest possible" here.
	// https://www.pjrc.com/why-apa102-leds-have-trouble-at-24-mhz/
	uint32_t SPI_SPEED = DATA_RATE_MHZ(6)
>
class APA102ControllerHD : public APA102Controller<
	DATA_PIN,
	CLOCK_PIN, 
	RGB_ORDER,
	SPI_SPEED,
	kFiveBitGammaCorrectionMode_BitShift,
	uint32_t(0x00000000),
	uint32_t(0x00000000)> {
public:
  APA102ControllerHD() = default;
  APA102ControllerHD(const APA102ControllerHD&) = delete;
};

/// SK9822 controller class. It's exactly the same as the APA102Controller protocol but with a different END_FRAME and default SPI_SPEED.
/// @tparam DATA_PIN the data pin for these LEDs
/// @tparam CLOCK_PIN the clock pin for these LEDs
/// @tparam RGB_ORDER the RGB ordering for these LEDs
/// @tparam SPI_SPEED the clock divider used for these LEDs.  Set using the ::DATA_RATE_MHZ / ::DATA_RATE_KHZ macros.  Defaults to ::DATA_RATE_MHZ(24)
template <
	uint8_t DATA_PIN,
	uint8_t CLOCK_PIN,
	EOrder RGB_ORDER = RGB,
	uint32_t SPI_SPEED = DATA_RATE_MHZ(12)
>
class SK9822Controller : public APA102Controller<
	DATA_PIN,
	CLOCK_PIN,
	RGB_ORDER,
	SPI_SPEED,
	kFiveBitGammaCorrectionMode_Null,
	0x00000000,
	0x00000000
> {
};

/// SK9822 controller class. It's exactly the same as the APA102Controller protocol but with a different END_FRAME and default SPI_SPEED.
/// @tparam DATA_PIN the data pin for these LEDs
/// @tparam CLOCK_PIN the clock pin for these LEDs
/// @tparam RGB_ORDER the RGB ordering for these LEDs
/// @tparam SPI_SPEED the clock divider used for these LEDs.  Set using the ::DATA_RATE_MHZ / ::DATA_RATE_KHZ macros.  Defaults to ::DATA_RATE_MHZ(24)
template <
	uint8_t DATA_PIN,
	uint8_t CLOCK_PIN,
	EOrder RGB_ORDER = RGB,
	uint32_t SPI_SPEED = DATA_RATE_MHZ(12)
>
class SK9822ControllerHD : public APA102Controller<
	DATA_PIN,
	CLOCK_PIN,
	RGB_ORDER,
	SPI_SPEED,
	kFiveBitGammaCorrectionMode_BitShift,
	0x00000000,
	0x00000000
> {
};



//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// P9813 definition - takes data/clock/select pin values (N.B. should take an SPI definition?)
//
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

/// P9813 controller class.
/// @tparam DATA_PIN the data pin for these LEDs
/// @tparam CLOCK_PIN the clock pin for these LEDs
/// @tparam RGB_ORDER the RGB ordering for these LEDs
/// @tparam SPI_SPEED the clock divider used for these LEDs.  Set using the ::DATA_RATE_MHZ / ::DATA_RATE_KHZ macros.  Defaults to ::DATA_RATE_MHZ(10)
template <uint8_t DATA_PIN, uint8_t CLOCK_PIN, EOrder RGB_ORDER = RGB, uint32_t SPI_SPEED = DATA_RATE_MHZ(10)>
class P9813Controller : public CPixelLEDController<RGB_ORDER> {
	typedef SPIOutput<DATA_PIN, CLOCK_PIN, SPI_SPEED> SPI;
	SPI mSPI;

	void writeBoundary() { mSPI.writeWord(0); mSPI.writeWord(0); }

	inline void writeLed(uint8_t r, uint8_t g, uint8_t b) __attribute__((always_inline)) {
		FASTLED_REGISTER uint8_t top = 0xC0 | ((~b & 0xC0) >> 2) | ((~g & 0xC0) >> 4) | ((~r & 0xC0) >> 6);
		mSPI.writeByte(top); mSPI.writeByte(b); mSPI.writeByte(g); mSPI.writeByte(r);
	}

public:
	P9813Controller() {}

	virtual void init() {
		mSPI.init();
	}

protected:
	/// @copydoc CPixelLEDController::showPixels()
	virtual void showPixels(PixelController<RGB_ORDER> & pixels) {
		mSPI.select();

		writeBoundary();
		while(pixels.has(1)) {
			writeLed(pixels.loadAndScale0(), pixels.loadAndScale1(), pixels.loadAndScale2());
			pixels.advanceData();
			pixels.stepDithering();
		}
		writeBoundary();
		mSPI.waitFully();

		mSPI.release();
	}

};


//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// SM16716 definition - takes data/clock/select pin values (N.B. should take an SPI definition?)
//
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

/// SM16716 controller class.
/// @tparam DATA_PIN the data pin for these LEDs
/// @tparam CLOCK_PIN the clock pin for these LEDs
/// @tparam RGB_ORDER the RGB ordering for these LEDs
/// @tparam SPI_SPEED the clock divider used for these LEDs.  Set using the ::DATA_RATE_MHZ / ::DATA_RATE_KHZ macros.  Defaults to ::DATA_RATE_MHZ(16)
template <uint8_t DATA_PIN, uint8_t CLOCK_PIN, EOrder RGB_ORDER = RGB, uint32_t SPI_SPEED = DATA_RATE_MHZ(16)>
class SM16716Controller : public CPixelLEDController<RGB_ORDER> {
	typedef SPIOutput<DATA_PIN, CLOCK_PIN, SPI_SPEED> SPI;
	SPI mSPI;

	void writeHeader() {
		// Write out 50 zeros to the spi line (6 blocks of 8 followed by two single bit writes)
		mSPI.select();
		mSPI.template writeBit<0>(0);
		mSPI.writeByte(0);
		mSPI.writeByte(0);
		mSPI.writeByte(0);
		mSPI.template writeBit<0>(0);
		mSPI.writeByte(0);
		mSPI.writeByte(0);
		mSPI.writeByte(0);
		mSPI.waitFully();
		mSPI.release();
	}

public:
	SM16716Controller() {}

	virtual void init() {
		mSPI.init();
	}

protected:
	/// @copydoc CPixelLEDController::showPixels()
	virtual void showPixels(PixelController<RGB_ORDER> & pixels) {
		// Make sure the FLAG_START_BIT flag is set to ensure that an extra 1 bit is sent at the start
		// of each triplet of bytes for rgb data
		// writeHeader();
		mSPI.template writePixels<FLAG_START_BIT, DATA_NOP, RGB_ORDER>(pixels, NULL);
		writeHeader();
	}

};

/// @} ClockedChipsets


//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// Clockless template instantiations - see clockless.h for how the timing values are used
//

#ifdef FASTLED_HAS_CLOCKLESS
/// @defgroup ClocklessChipsets Clockless Chipsets
/// These chipsets have only a single data line. 
///
/// The clockless chipset controllers use the same base class
/// and the same protocol, but with varying timing periods.
///
/// These controllers have 3 control points in their cycle for each bit:
///   @code
///   At T=0        : the line is raised hi to start a bit
///   At T=T1       : the line is dropped low to transmit a zero bit
///   At T=T1+T2    : the line is dropped low to transmit a one bit
///   At T=T1+T2+T3 : the cycle is concluded (next bit can be sent)
///   @endcode
///
/// The units used for T1, T2, and T3 is nanoseconds.  
///
/// For 8MHz/16MHz/24MHz frequencies, these values are also guaranteed
/// to be integral multiples of an 8MHz clock (125ns increments).
///
/// @note The base class, ClocklessController, is platform-specific.
/// @{

// Allow clock that clockless controller is based on to have different
// frequency than the CPU.
#if !defined(CLOCKLESS_FREQUENCY)
    #define CLOCKLESS_FREQUENCY F_CPU
#endif

// We want to force all avr's to use the Trinket controller when running at 8Mhz, because even the 328's at 8Mhz
// need the more tightly defined timeframes.
#if defined(__LGT8F__) || (CLOCKLESS_FREQUENCY == 8000000 || CLOCKLESS_FREQUENCY == 16000000 || CLOCKLESS_FREQUENCY == 24000000) || defined(FASTLED_DOXYGEN) //  || CLOCKLESS_FREQUENCY == 48000000 || CLOCKLESS_FREQUENCY == 96000000) // 125ns/clock

/// Frequency multiplier for each clockless data interval.
/// @see Notes in @ref ClocklessChipsets
#define FMUL (CLOCKLESS_FREQUENCY/8000000)

/// GE8822 controller class.
/// @copydetails WS2812Controller800Khz
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class GE8822Controller800Khz : public ClocklessController<DATA_PIN, 3 * FMUL, 5 * FMUL, 3 * FMUL, RGB_ORDER, 4> {};

/// LPD1886 controller class.
/// @copydetails WS2812Controller800Khz
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class LPD1886Controller1250Khz : public ClocklessController<DATA_PIN, 2 * FMUL, 3 * FMUL, 2 * FMUL, RGB_ORDER, 4> {};

/// LPD1886 controller class.
/// @copydetails WS2812Controller800Khz
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class LPD1886Controller1250Khz_8bit : public ClocklessController<DATA_PIN, 2 * FMUL, 3 * FMUL, 2 * FMUL, RGB_ORDER> {};

/// WS2812 controller class @ 800 KHz.
/// @tparam DATA_PIN the data pin for these LEDs
/// @tparam RGB_ORDER the RGB ordering for these LEDs
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class WS2812Controller800Khz : public ClocklessController<DATA_PIN, 2 * FMUL, 5 * FMUL, 3 * FMUL, RGB_ORDER> {};

/// WS2815 controller class @ 400 KHz.
/// @copydetails WS2812Controller800Khz
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class WS2815Controller : public ClocklessController<DATA_PIN, 2 * FMUL, 9 * FMUL, 4 * FMUL, RGB_ORDER> {};

/// WS2811 controller class @ 800 KHz.
/// @copydetails WS2812Controller800Khz
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class WS2811Controller800Khz : public ClocklessController<DATA_PIN, 3 * FMUL, 4 * FMUL, 3 * FMUL, RGB_ORDER> {};

/// DP1903 controller class @ 800 KHz.
/// @copydetails WS2812Controller800Khz
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class DP1903Controller800Khz : public ClocklessController<DATA_PIN, 2 * FMUL, 8 * FMUL, 2 * FMUL, RGB_ORDER> {};

/// DP1903 controller class @ 400 KHz.
/// @copydetails WS2812Controller800Khz
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class DP1903Controller400Khz : public ClocklessController<DATA_PIN, 4 * FMUL, 16 * FMUL, 4 * FMUL, RGB_ORDER> {};

/// WS2813 controller class.
/// @copydetails WS2812Controller800Khz
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>                                                             //not tested
class WS2813Controller : public ClocklessController<DATA_PIN, 3 * FMUL, 4 * FMUL, 3 * FMUL, RGB_ORDER> {};

/// WS2811 controller class @ 400 KHz.
/// @copydetails WS2812Controller800Khz
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class WS2811Controller400Khz : public ClocklessController<DATA_PIN, 4 * FMUL, 10 * FMUL, 6 * FMUL, RGB_ORDER> {};

/// SK6822 controller class.
/// @copydetails WS2812Controller800Khz
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class SK6822Controller : public ClocklessController<DATA_PIN, 3 * FMUL, 8 * FMUL, 3 * FMUL, RGB_ORDER> {};

/// SM16703 controller class.
/// @copydetails WS2812Controller800Khz
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class SM16703Controller : public ClocklessController<DATA_PIN, 3 * FMUL, 4 * FMUL, 3 * FMUL, RGB_ORDER> {};

/// SK6812 controller class.
/// @copydetails WS2812Controller800Khz
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class SK6812Controller : public ClocklessController<DATA_PIN, 3 * FMUL, 3 * FMUL, 4 * FMUL, RGB_ORDER> {};

/// UCS1903 controller class @ 400 KHz.
/// @copydetails WS2812Controller800Khz
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class UCS1903Controller400Khz : public ClocklessController<DATA_PIN, 4 * FMUL, 12 * FMUL, 4 * FMUL, RGB_ORDER> {};

/// UCS1903B controller class.
/// @copydetails WS2812Controller800Khz
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class UCS1903BController800Khz : public ClocklessController<DATA_PIN, 2 * FMUL, 4 * FMUL, 4 * FMUL, RGB_ORDER> {};

/// UCS1904 controller class.
/// @copydetails WS2812Controller800Khz
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class UCS1904Controller800Khz : public ClocklessController<DATA_PIN, 3 * FMUL, 3 * FMUL, 4 * FMUL, RGB_ORDER> {};

/// UCS2903 controller class.
/// @copydetails WS2812Controller800Khz
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class UCS2903Controller : public ClocklessController<DATA_PIN, 2 * FMUL, 6 * FMUL, 2 * FMUL, RGB_ORDER> {};

/// TM1809 controller class.
/// @copydetails WS2812Controller800Khz
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class TM1809Controller800Khz : public ClocklessController<DATA_PIN, 2 * FMUL, 5 * FMUL, 3 * FMUL, RGB_ORDER> {};

/// TM1803 controller class.
/// @copydetails WS2812Controller800Khz
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class TM1803Controller400Khz : public ClocklessController<DATA_PIN, 6 * FMUL, 9 * FMUL, 6 * FMUL, RGB_ORDER> {};

/// TM1829 controller class.
/// @copydetails WS2812Controller800Khz
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class TM1829Controller800Khz : public ClocklessController<DATA_PIN, 2 * FMUL, 5 * FMUL, 3 * FMUL, RGB_ORDER, 0, true, 500> {};

/// GW6205 controller class @ 400 KHz.
/// @copydetails WS2812Controller800Khz
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class GW6205Controller400Khz : public ClocklessController<DATA_PIN, 6 * FMUL, 7 * FMUL, 6 * FMUL, RGB_ORDER, 4> {};

/// UCS1904 controller class @ 800 KHz.
/// @copydetails WS2812Controller800Khz
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class GW6205Controller800Khz : public ClocklessController<DATA_PIN, 2 * FMUL, 4 * FMUL, 4 * FMUL, RGB_ORDER, 4> {};

/// PL9823 controller class.
/// @copydetails WS2812Controller800Khz
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class PL9823Controller : public ClocklessController<DATA_PIN, 3 * FMUL, 8 * FMUL, 3 * FMUL, RGB_ORDER> {};

// UCS1912 - Note, never been tested, this is according to the datasheet
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class UCS1912Controller : public ClocklessController<DATA_PIN, 2 * FMUL, 8 * FMUL, 3 * FMUL, RGB_ORDER> {};


#else

/// Calculates the number of cycles for the clockless chipset (which may differ from CPU cycles)
/// @see ::NS()
#ifdef FASTLED_TEENSY4
// just use raw nanosecond values for the teensy4
#define C_NS(_NS) _NS
#else
#define C_NS(_NS) (((_NS * ((CLOCKLESS_FREQUENCY / 1000000L)) + 999)) / 1000)
#endif

// At T=0        : the line is raised hi to start a bit
// At T=T1       : the line is dropped low to transmit a zero bit
// At T=T1+T2    : the line is dropped low to transmit a one bit
// At T=T1+T2+T3 : the cycle is concluded (next bit can be sent)
//
// Python script to calculate the values for T1, T2, and T3 for FastLED:
//
//  print("Enter the values of T0H, T0L, T1H, T1L, in nanoseconds: ")
//  T0H = int(input("  T0H: "))
//  T0L = int(input("  T0L: "))
//  T1H = int(input("  T1H: "))
//  T1L = int(input("  T1L: "))
//  
//  duration = max(T0H + T0L, T1H + T1L)
//  
//  print("The max duration of the signal is: ", duration)
//  
//  T1 = T0H
//  T2 = T1H
//  T3 = duration - T0H - T0L
//  
//  print("T1: ", T1)
//  print("T2: ", T2)
//  print("T3: ", T3)


// GE8822 - 350ns 660ns 350ns
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class GE8822Controller800Khz : public ClocklessController<DATA_PIN, C_NS(350), C_NS(660), C_NS(350), RGB_ORDER, 4> {};

// GW6205@400khz - 800ns, 800ns, 800ns
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class GW6205Controller400Khz : public ClocklessController<DATA_PIN, C_NS(800), C_NS(800), C_NS(800), RGB_ORDER, 4> {};

// GW6205@400khz - 400ns, 400ns, 400ns
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class GW6205Controller800Khz : public ClocklessController<DATA_PIN, C_NS(400), C_NS(400), C_NS(400), RGB_ORDER, 4> {};

// UCS1903 - 500ns, 1500ns, 500ns
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class UCS1903Controller400Khz : public ClocklessController<DATA_PIN, C_NS(500), C_NS(1500), C_NS(500), RGB_ORDER> {};

// UCS1903B - 400ns, 450ns, 450ns
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class UCS1903BController800Khz : public ClocklessController<DATA_PIN, C_NS(400), C_NS(450), C_NS(450), RGB_ORDER> {};

// UCS1904 - 400ns, 400ns, 450ns
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class UCS1904Controller800Khz : public ClocklessController<DATA_PIN, C_NS(400), C_NS(400), C_NS(450), RGB_ORDER> {};

// UCS2903 - 250ns, 750ns, 250ns
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class UCS2903Controller : public ClocklessController<DATA_PIN, C_NS(250), C_NS(750), C_NS(250), RGB_ORDER> {};

// TM1809 - 350ns, 350ns, 550ns
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class TM1809Controller800Khz : public ClocklessController<DATA_PIN, C_NS(350), C_NS(350), C_NS(450), RGB_ORDER> {};

// WS2811 - 320ns, 320ns, 640ns
template <uint8_t DATA_PIN, EOrder RGB_ORDER = GRB>
class WS2811Controller800Khz : public ClocklessController<DATA_PIN, C_NS(320), C_NS(320), C_NS(640), RGB_ORDER> {};

// WS2813 - 320ns, 320ns, 640ns
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class WS2813Controller : public ClocklessController<DATA_PIN, C_NS(320), C_NS(320), C_NS(640), RGB_ORDER> {};

// WS2812 - 250ns, 625ns, 375ns
template <uint8_t DATA_PIN, EOrder RGB_ORDER = GRB>
class WS2812Controller800Khz : public ClocklessController<DATA_PIN, C_NS(250), C_NS(625), C_NS(375), RGB_ORDER> {};

// WS2811@400khz - 800ns, 800ns, 900ns
template <uint8_t DATA_PIN, EOrder RGB_ORDER = GRB>
class WS2811Controller400Khz : public ClocklessController<DATA_PIN, C_NS(800), C_NS(800), C_NS(900), RGB_ORDER> {};

template <uint8_t DATA_PIN, EOrder RGB_ORDER = GRB>
class WS2815Controller : public ClocklessController<DATA_PIN, C_NS(250), C_NS(1090), C_NS(550), RGB_ORDER> {};

// 750NS, 750NS, 750NS
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class TM1803Controller400Khz : public ClocklessController<DATA_PIN, C_NS(700), C_NS(1100), C_NS(700), RGB_ORDER> {};

template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class TM1829Controller800Khz : public ClocklessController<DATA_PIN, C_NS(340), C_NS(340), C_NS(550), RGB_ORDER, 0, true, 500> {};

template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class TM1829Controller1600Khz : public ClocklessController<DATA_PIN, C_NS(100), C_NS(300), C_NS(200), RGB_ORDER, 0, true, 500> {};

template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class LPD1886Controller1250Khz : public ClocklessController<DATA_PIN, C_NS(200), C_NS(400), C_NS(200), RGB_ORDER, 4> {};

template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class LPD1886Controller1250Khz_8bit : public ClocklessController<DATA_PIN, C_NS(200), C_NS(400), C_NS(200), RGB_ORDER> {};


template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class SK6822Controller : public ClocklessController<DATA_PIN, C_NS(375), C_NS(1000), C_NS(375), RGB_ORDER> {};

template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class SK6812Controller : public ClocklessController<DATA_PIN, C_NS(300), C_NS(300), C_NS(600), RGB_ORDER> {};

template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class SM16703Controller : public ClocklessController<DATA_PIN, C_NS(300), C_NS(600), C_NS(300), RGB_ORDER> {};

template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class PL9823Controller : public ClocklessController<DATA_PIN, C_NS(350), C_NS(1010), C_NS(350), RGB_ORDER> {};

// UCS1912 - Note, never been tested, this is according to the datasheet
template <uint8_t DATA_PIN, EOrder RGB_ORDER = RGB>
class UCS1912Controller : public ClocklessController<DATA_PIN, C_NS(250), C_NS(1000), C_NS(350), RGB_ORDER> {};
#endif
/// @} ClocklessChipsets

#endif
/// @} Chipsets

FASTLED_NAMESPACE_END

#endif
