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Diffstat (limited to 'Библиотеки/FastLED-master/platforms/esp/8266/clockless_esp8266.h')
-rw-r--r--Библиотеки/FastLED-master/platforms/esp/8266/clockless_esp8266.h117
1 files changed, 117 insertions, 0 deletions
diff --git a/Библиотеки/FastLED-master/platforms/esp/8266/clockless_esp8266.h b/Библиотеки/FastLED-master/platforms/esp/8266/clockless_esp8266.h
new file mode 100644
index 0000000..20ae641
--- /dev/null
+++ b/Библиотеки/FastLED-master/platforms/esp/8266/clockless_esp8266.h
@@ -0,0 +1,117 @@
+#pragma once
+
+FASTLED_NAMESPACE_BEGIN
+
+#ifdef FASTLED_DEBUG_COUNT_FRAME_RETRIES
+extern uint32_t _frame_cnt;
+extern uint32_t _retry_cnt;
+#endif
+
+// Info on reading cycle counter from https://github.com/kbeckmann/nodemcu-firmware/blob/ws2812-dual/app/modules/ws2812.c
+__attribute__ ((always_inline)) inline static uint32_t __clock_cycles() {
+ uint32_t cyc;
+ __asm__ __volatile__ ("rsr %0,ccount":"=a" (cyc));
+ return cyc;
+}
+
+#define FASTLED_HAS_CLOCKLESS 1
+
+template <int DATA_PIN, int T1, int T2, int T3, EOrder RGB_ORDER = RGB, int XTRA0 = 0, bool FLIP = false, int WAIT_TIME = 5>
+class ClocklessController : public CPixelLEDController<RGB_ORDER> {
+ typedef typename FastPin<DATA_PIN>::port_ptr_t data_ptr_t;
+ typedef typename FastPin<DATA_PIN>::port_t data_t;
+
+ data_t mPinMask;
+ data_ptr_t mPort;
+ CMinWait<WAIT_TIME> mWait;
+public:
+ virtual void init() {
+ FastPin<DATA_PIN>::setOutput();
+ mPinMask = FastPin<DATA_PIN>::mask();
+ mPort = FastPin<DATA_PIN>::port();
+ }
+
+ virtual uint16_t getMaxRefreshRate() const { return 400; }
+
+protected:
+
+ virtual void showPixels(PixelController<RGB_ORDER> & pixels) {
+ // mWait.wait();
+ int cnt = FASTLED_INTERRUPT_RETRY_COUNT;
+ while((showRGBInternal(pixels)==0) && cnt--) {
+ #ifdef FASTLED_DEBUG_COUNT_FRAME_RETRIES
+ _retry_cnt++;
+ #endif
+ os_intr_unlock();
+ delayMicroseconds(WAIT_TIME);
+ os_intr_lock();
+ }
+ // mWait.mark();
+ }
+
+#define _ESP_ADJ (0)
+#define _ESP_ADJ2 (0)
+
+ template<int BITS> __attribute__ ((always_inline)) inline static void writeBits(register uint32_t & last_mark, register uint32_t b) {
+ b = ~b; b <<= 24;
+ for(register uint32_t i = BITS; i > 0; i--) {
+ while((__clock_cycles() - last_mark) < (T1+T2+T3));
+ last_mark = __clock_cycles();
+ FastPin<DATA_PIN>::hi();
+
+ while((__clock_cycles() - last_mark) < T1);
+ if(b & 0x80000000L) { FastPin<DATA_PIN>::lo(); }
+ b <<= 1;
+
+ while((__clock_cycles() - last_mark) < (T1+T2));
+ FastPin<DATA_PIN>::lo();
+ }
+ }
+
+ // 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 ICACHE_RAM_ATTR showRGBInternal(PixelController<RGB_ORDER> pixels) {
+ // Setup the pixel controller and load/scale the first byte
+ pixels.preStepFirstByteDithering();
+ register uint32_t b = pixels.loadAndScale0();
+ pixels.preStepFirstByteDithering();
+ os_intr_lock();
+ uint32_t start = __clock_cycles();
+ uint32_t last_mark = start;
+ while(pixels.has(1)) {
+ // Write first byte, read next byte
+ writeBits<8+XTRA0>(last_mark, b);
+ b = pixels.loadAndScale1();
+
+ // Write second byte, read 3rd byte
+ writeBits<8+XTRA0>(last_mark, b);
+ b = pixels.loadAndScale2();
+
+ // Write third byte, read 1st byte of next pixel
+ writeBits<8+XTRA0>(last_mark, b);
+ b = pixels.advanceAndLoadAndScale0();
+
+ #if (FASTLED_ALLOW_INTERRUPTS == 1)
+ os_intr_unlock();
+ #endif
+
+ pixels.stepDithering();
+
+ #if (FASTLED_ALLOW_INTERRUPTS == 1)
+ os_intr_lock();
+ // if interrupts took longer than 45µs, punt on the current frame
+ if((int32_t)(__clock_cycles()-last_mark) > 0) {
+ if((int32_t)(__clock_cycles()-last_mark) > (T1+T2+T3+((WAIT_TIME-INTERRUPT_THRESHOLD)*CLKS_PER_US))) { sei(); return 0; }
+ }
+ #endif
+ };
+
+ os_intr_unlock();
+ #ifdef FASTLED_DEBUG_COUNT_FRAME_RETRIES
+ _frame_cnt++;
+ #endif
+ return __clock_cycles() - start;
+ }
+};
+
+FASTLED_NAMESPACE_END