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#ifndef __INC_CLOCKLESS_ARM_NRF51
#define __INC_CLOCKLESS_ARM_NRF51
#if defined(NRF51)
#include "nrf51_bitfields.h"
#define FASTLED_HAS_CLOCKLESS 1
#if (FASTLED_ALLOW_INTERRUPTS==1)
#define SEI_CHK LED_TIMER->CC[0] = (WAIT_TIME * (F_CPU/1000000)); LED_TIMER->TASKS_CLEAR; LED_TIMER->EVENTS_COMPARE[0] = 0;
#define CLI_CHK cli(); if(LED_TIMER->EVENTS_COMPARE[0]) { LED_TIMER->TASKS_STOP = 1; return 0; }
#define INNER_SEI sei();
#else
#define SEI_CHK
#define CLI_CHK
#define INNER_SEI delaycycles<1>();
#endif
#include "platforms/arm/common/m0clockless.h"
template <uint8_t DATA_PIN, int T1, int T2, int T3, EOrder RGB_ORDER = RGB, int XTRA0 = 0, bool FLIP = false, int WAIT_TIME = 75>
class ClocklessController : public CPixelLEDController<RGB_ORDER> {
typedef typename FastPinBB<DATA_PIN>::port_ptr_t data_ptr_t;
typedef typename FastPinBB<DATA_PIN>::port_t data_t;
data_t mPinMask;
data_ptr_t mPort;
CMinWait<WAIT_TIME> mWait;
public:
virtual void init() {
FastPinBB<DATA_PIN>::setOutput();
mPinMask = FastPinBB<DATA_PIN>::mask();
mPort = FastPinBB<DATA_PIN>::port();
}
virtual uint16_t getMaxRefreshRate() const { return 400; }
virtual void showPixels(PixelController<RGB_ORDER> & pixels) {
mWait.wait();
cli();
if(!showRGBInternal(pixels)) {
sei(); delayMicroseconds(WAIT_TIME); cli();
showRGBInternal(pixels);
}
sei();
mWait.mark();
}
// 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) {
struct M0ClocklessData data;
data.d[0] = pixels.d[0];
data.d[1] = pixels.d[1];
data.d[2] = pixels.d[2];
data.s[0] = pixels.mScale[0];
data.s[1] = pixels.mScale[1];
data.s[2] = pixels.mScale[2];
data.e[0] = pixels.e[0];
data.e[1] = pixels.e[1];
data.e[2] = pixels.e[2];
data.adj = pixels.mAdvance;
typename FastPin<DATA_PIN>::port_ptr_t portBase = FastPin<DATA_PIN>::port();
// timer mode w/prescaler of 0
LED_TIMER->MODE = TIMER_MODE_MODE_Timer;
LED_TIMER->PRESCALER = 0;
LED_TIMER->EVENTS_COMPARE[0] = 0;
LED_TIMER->BITMODE = TIMER_BITMODE_BITMODE_16Bit;
LED_TIMER->SHORTS = TIMER_SHORTS_COMPARE0_CLEAR_Msk;
LED_TIMER->TASKS_START = 1;
int ret = showLedData<4,8,T1,T2,T3,RGB_ORDER,WAIT_TIME>(portBase, FastPin<DATA_PIN>::mask(), pixels.mData, pixels.mLen, &data);
LED_TIMER->TASKS_STOP = 1;
return ret; // 0x00FFFFFF - _VAL;
}
};
#endif // NRF51
#endif // __INC_CLOCKLESS_ARM_NRF51
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