42 lines
686 B
C++
42 lines
686 B
C++
// ws2812_lib.h
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#ifndef __WS2812_I2S_H__
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#define __WS2812_I2S_H__
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#include <stdint.h>
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#include "ws2812_defs.h"
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// include C-style header
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extern "C"
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{
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#include "ws2812_dma.h"
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};
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typedef struct
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{
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uint8_t G; // G,R,B order is determined by WS2812B
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uint8_t R;
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uint8_t B;
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} Pixel_t;
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class WS2812
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{
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public:
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WS2812(void);
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~WS2812(void);
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void init(uint16_t num_leds);
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void show(Pixel_t *);
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private:
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uint16_t num_leds;
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uint32_t *i2s_pixels_buffer[WS2812_DITHER_NUM];
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uint32_t i2s_zeros_buffer[NUM_I2S_ZERO_WORDS];
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sdio_queue_t i2s_zeros_queue[WS2812_DITHER_NUM];
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sdio_queue_t i2s_pixels_queue[WS2812_DITHER_NUM];
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};
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#endif
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// end of file
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