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#ifndef __INC_BLOCK_CLOCKLESS_ARM_K20_H
#define __INC_BLOCK_CLOCKLESS_ARM_K20_H
// Definition for a single channel clockless controller for the k20 family of chips, like that used in the teensy 3.0/3.1
// See clockless.h for detailed info on how the template parameters are used.
#if defined(FASTLED_TEENSY3)
#define HAS_BLOCKLESS 1
template <uint8_t NUM_LANES, int T1, int T2, int T3, EOrder RGB_ORDER = RGB, int XTRA0 = 0, bool FLIP = false, int WAIT_TIME = 500>
class InlineBlockClocklessController : public CLEDController {
typedef typename FastPin<2>::port_ptr_t data_ptr_t;
typedef typename FastPin<2>::port_t data_t;
data_t mPinMask;
data_ptr_t mPort;
CMinWait<WAIT_TIME> mWait;
public:
virtual void init() {
FastPin<2>::setOutput();
FastPin<14>::setOutput();
FastPin<7>::setOutput();
FastPin<8>::setOutput();
FastPin<6>::setOutput();
FastPin<20>::setOutput();
FastPin<21>::setOutput();
FastPin<25>::setOutput();
mPinMask = FastPin<2>::mask();
mPort = FastPin<2>::port();
}
virtual void clearLeds(int nLeds) {
showColor(CRGB(0, 0, 0), nLeds, 0);
}
// set all the leds on the controller to a given color
virtual void showColor(const struct CRGB & rgbdata, int nLeds, CRGB scale) {
mWait.wait();
cli();
uint32_t clocks = showRGBInternal(PixelController<RGB_ORDER>(rgbdata, nLeds, scale, getDither()),
PixelController<RGB_ORDER>(rgbdata/*/+nLeds/**/, nLeds, scale, getDither()),
PixelController<RGB_ORDER>(rgbdata/*/+nLeds/**/, nLeds, scale, getDither()),
PixelController<RGB_ORDER>(rgbdata/*/+nLeds/**/, nLeds, scale, getDither()),
PixelController<RGB_ORDER>(rgbdata/*/+nLeds/**/, nLeds, scale, getDither()),
PixelController<RGB_ORDER>(rgbdata/*/+nLeds/**/, nLeds, scale, getDither()),
PixelController<RGB_ORDER>(rgbdata/*/+(2*nLeds)/**/, nLeds, scale, getDither()),
PixelController<RGB_ORDER>(rgbdata/*/+(3*nLeds)/**/, nLeds, scale, getDither()));
// Adjust the timer
long microsTaken = CLKS_TO_MICROS(clocks);
MS_COUNTER += (microsTaken / 1000);
sei();
mWait.mark();
}
virtual void show(const struct CRGB *rgbdata, int nLeds, CRGB scale) {
mWait.wait();
cli();
uint32_t clocks = showRGBInternal(PixelController<RGB_ORDER>(rgbdata, nLeds, scale, getDither()),
PixelController<RGB_ORDER>(rgbdata/**/+(1*nLeds)/**/, nLeds, scale, getDither()),
PixelController<RGB_ORDER>(rgbdata/**/+(2*nLeds)/**/, nLeds, scale, getDither()),
PixelController<RGB_ORDER>(rgbdata/**/+(3*nLeds)/**/, nLeds, scale, getDither()),
PixelController<RGB_ORDER>(rgbdata/**/+(4*nLeds)/**/, nLeds, scale, getDither()),
PixelController<RGB_ORDER>(rgbdata/**/+(5*nLeds)/**/, nLeds, scale, getDither()),
PixelController<RGB_ORDER>(rgbdata/**/+(6*nLeds)/**/, nLeds, scale, getDither()),
PixelController<RGB_ORDER>(rgbdata/**/+(7*nLeds)/**/, nLeds, scale, getDither()));
// Adjust the timer
long microsTaken = CLKS_TO_MICROS(clocks);
MS_COUNTER += (microsTaken / 1000);
sei();
mWait.mark();
}
#ifdef SUPPORT_ARGB
virtual void show(const struct CARGB *rgbdata, int nLeds, CRGB scale) {
mWait.wait();
cli();
uint32_t clocks = showRGBInternal(PixelController<RGB_ORDER>(rgbdata, nLeds, scale, getDither()));
// Adjust the timer
long microsTaken = CLKS_TO_MICROS(clocks);
MS_COUNTER += (microsTaken / 1000);
sei();
mWait.mark();
}
#endif
typedef union {
uint32_t word;
struct {
uint32_t a0:1;
uint32_t a1:1;
uint32_t a2:1;
uint32_t a3:1;
uint32_t a4:1;
uint32_t a5:1;
uint32_t a6:1;
uint32_t a7:1;
uint32_t b0:1;
uint32_t b1:1;
uint32_t b2:1;
uint32_t b3:1;
uint32_t b4:1;
uint32_t b5:1;
uint32_t b6:1;
uint32_t b7:1;
uint32_t c0:1;
uint32_t c1:1;
uint32_t c2:1;
uint32_t c3:1;
uint32_t c4:1;
uint32_t c5:1;
uint32_t c6:1;
uint32_t c7:1;
uint32_t d0:1;
uint32_t d1:1;
uint32_t d2:1;
uint32_t d3:1;
uint32_t d4:1;
uint32_t d5:1;
uint32_t d6:1;
uint32_t d7:1;
};
} xtype;
#define USE_LINES
typedef union {
uint8_t bytes[8];
uint32_t raw[2];
} Lines;
__attribute__ ((always_inline)) inline static uint32_t bits(Lines & b) {
xtype fuckery;
fuckery.word = 0;
fuckery.a0 = (b.raw[0] >> 31);
fuckery.a1 = (b.raw[0] >> 23);
fuckery.a2 = (b.raw[0] >> 15);
fuckery.a3 = (b.raw[0] >> 7);
fuckery.a4 = (b.raw[1] >> 31);
fuckery.a5 = (b.raw[1] >> 23);
fuckery.a6 = (b.raw[1] >> 15);
fuckery.a7 = (b.raw[1] >> 7);
// fuckery.b0 = (b.raw[2] >> 30);
// fuckery.b1 = (b.raw[2] >> 22);
// fuckery.b2 = (b.raw[2] >> 14);
// fuckery.b3 = (b.raw[2] >> 6);
// fuckery.b4 = (b.raw[3] >> 30);
// fuckery.b5 = (b.raw[3] >> 22)
// fuckery.b6 = (b.raw[3] >> 14);
// fuckery.b7 = (b.raw[3] >> 6);
// fuckery.c0 = (b.raw[4] >> 29);
// fuckery.c1 = (b.raw[4] >> 21);
// fuckery.c2 = (b.raw[4] >> 13);
// fuckery.c3 = (b.raw[4] >> 5);
// fuckery.c4 = (b.raw[5] >> 20);
// fuckery.c5 = (b.raw[5] >> 21);
// fuckery.c6 = (b.raw[5] >> 13);
// fuckery.c7 = (b.raw[5] >> 5);
// fuckery.d0 = (b.raw[6] >> 28);
// fuckery.d1 = (b.raw[6] >> 19);
// fuckery.d2 = (b.raw[6] >> 12);
// fuckery.d3 = (b.raw[6] >> 4);
// fuckery.d4 = (b.raw[7] >> 28);
// fuckery.d5 = (b.raw[7] >> 19);
// fuckery.d6 = (b.raw[7] >> 12);
// fuckery.d7 = (b.raw[7] >> 4);
return fuckery.word;
}
template<int BITS,int PX> __attribute__ ((always_inline)) inline static void writeBits(register uint32_t & next_mark, register Lines & b, Lines & b2, PixelController<RGB_ORDER> *allpixels[8]) { // , register uint32_t & b2) {
uint32_t flipper = bits(b);
for(register uint32_t i = 0; i < 8; i++) {
while(ARM_DWT_CYCCNT < next_mark);
next_mark = ARM_DWT_CYCCNT + (T1+T2+T3);
*FastPin<2>::port() = 0xFF;
uint32_t flip_mark = next_mark - (T2+T3+2);
while(ARM_DWT_CYCCNT < flip_mark);
uint32_t last_flip_mark = next_mark - (T3);
*FastPin<2>::port() = flipper;
b.raw[0] <<= 1;
b.raw[1] <<= 1;
flipper = bits(b);
while(ARM_DWT_CYCCNT < last_flip_mark);
*FastPin<2>::port() = 0;
switch(PX) {
case 0: b2.bytes[i] = allpixels[i]->advanceAndLoadAndScale0(); break;
case 1: b2.bytes[i] = allpixels[i]->loadAndScale1(); break;
case 2: b2.bytes[i] = allpixels[i]->loadAndScale2(); break;
}
}
}
// This method is made static to force making register Y available to use for data on AVR - if the method is non-static, then
// gcc will use register Y for the this pointer.
static uint32_t showRGBInternal(PixelController<RGB_ORDER> pixels, PixelController<RGB_ORDER> pixels2, PixelController<RGB_ORDER> pixels3, PixelController<RGB_ORDER> pixels4,
PixelController<RGB_ORDER> pixels5, PixelController<RGB_ORDER> pixels6, PixelController<RGB_ORDER> pixels7, PixelController<RGB_ORDER> pixels8) {
// Get access to the clock
ARM_DEMCR |= ARM_DEMCR_TRCENA;
ARM_DWT_CTRL |= ARM_DWT_CTRL_CYCCNTENA;
ARM_DWT_CYCCNT = 0;
// Setup the pixel controller and load/scale the first byte
PixelController<RGB_ORDER> *allpixels[8] = {&pixels,&pixels2,&pixels3,&pixels4,&pixels5,&pixels6,&pixels7,&pixels8};
pixels.preStepFirstByteDithering();
register Lines b0,b1,b2;
b0.raw[0] = b0.raw[1] = 0;
b1.raw[0] = b1.raw[1] = 0;
b2.raw[0] = b2.raw[1] = 0;
for(int i = 0; i < 8; i++) {
allpixels[i]->preStepFirstByteDithering();
b0.bytes[i] = allpixels[i]->loadAndScale0();
}
uint32_t next_mark = ARM_DWT_CYCCNT + (T1+T2+T3);
while(pixels.has(1)) {
pixels.stepDithering();
// Write first byte, read next byte
writeBits<8+XTRA0,1>(next_mark, b0, b1, allpixels);
// Write second byte, read 3rd byte
writeBits<8+XTRA0,2>(next_mark, b1, b2, allpixels);
// Write third byte
writeBits<8+XTRA0,0>(next_mark, b2, b0, allpixels);
};
return ARM_DWT_CYCCNT;
}
};
#endif
#endif
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