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64 lines
1.4 KiB
64 lines
1.4 KiB
//
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// Created by MightyPork on 2017/11/25.
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//
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// NeoPixel RGB LED strip bit-banged output.
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// The nanosecond timing is derived from the AHB clock speed.
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//
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#ifndef U_NEOPIXEL_H
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#define U_NEOPIXEL_H
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#include "unit.h"
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extern const UnitDriver UNIT_NEOPIXEL;
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/**
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* Clear the Neopixel strip
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*
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* @param unit
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* @return success
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*/
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error_t UU_NEOPIXEL_Clear(Unit *unit);
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/**
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* Load the strip with packed bytes R,G,B.
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*
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* @param unit
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* @param packed_rgb - bytes to load
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* @param nbytes - number of bytes, must be count*3
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* @return success
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*/
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error_t UU_NEOPIXEL_Load(Unit *unit, const uint8_t *packed_rgb, uint32_t nbytes);
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/**
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* Load the strip with sparse (uint32_t) colors 0x00RRGGBB as little endian bytes
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* (B, G, R, 0, ...)
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*
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* @param unit
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* @param bytes - bytes to load
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* @param nbytes - number of bytes, must be count*4
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* @return success
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*/
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error_t UU_NEOPIXEL_LoadU32LE(Unit *unit, const uint8_t *bytes, uint32_t nbytes);
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/**
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* Load the strip with sparse (uint32_t) colors 0x00RRGGBB as big endian bytes
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* (0, R, G, B, ...)
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*
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* @param unit
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* @param bytes - bytes to load
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* @param nbytes - number of bytes, must be count*4
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* @return success
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*/
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error_t UU_NEOPIXEL_LoadU32BE(Unit *unit, const uint8_t *bytes, uint32_t nbytes);
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/**
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* Get number of pixels on the strip
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*
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* @param unit
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* @param count - destination for the count value
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* @return success
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*/
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error_t UU_NEOPIXEL_GetCount(Unit *unit, uint16_t *count);
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#endif //U_NEOPIXEL_H
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