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gex-core/units/neopixel/unit_neopixel.h

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//
// Created by MightyPork on 2017/11/25.
//
// NeoPixel RGB LED strip bit-banged output.
// The nanosecond timing is derived from the AHB clock speed.
//
#ifndef U_NEOPIXEL_H
#define U_NEOPIXEL_H
#include "unit.h"
extern const UnitDriver UNIT_NEOPIXEL;
/**
* Clear the Neopixel strip
*
* @param unit
* @return success
*/
error_t UU_Npx_Clear(Unit *unit);
/**
* Load the strip with packed bytes R,G,B.
*
* @param unit
* @param packed_rgb - bytes to load
* @param nbytes - number of bytes, must be count*3
* @return success
*/
error_t UU_Npx_Load(Unit *unit, const uint8_t *packed_rgb, uint32_t nbytes);
/**
* Load the strip with sparse (uint32_t) colors 0x00RRGGBB as little endian bytes
* (B, G, R, 0, ...)
*
* @param unit
* @param bytes - bytes to load
* @param nbytes - number of bytes, must be count*4
* @return success
*/
error_t UU_Npx_LoadU32LE(Unit *unit, const uint8_t *bytes, uint32_t nbytes);
/**
* Load the strip with sparse (uint32_t) colors 0x00RRGGBB as big endian bytes
* (0, R, G, B, ...)
*
* @param unit
* @param bytes - bytes to load
* @param nbytes - number of bytes, must be count*4
* @return success
*/
error_t UU_Npx_LoadU32BE(Unit *unit, const uint8_t *bytes, uint32_t nbytes);
/**
* Get number of pixels on the strip
*
* @param unit
* @param count - destination for the count value
* @return success
*/
error_t UU_Npx_GetCount(Unit *unit, uint16_t *count);
#endif //U_NEOPIXEL_H