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gex-core/units/neopixel/_npx_api.c

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1.6 KiB

//
// Created by MightyPork on 2018/02/03.
//
#include "platform.h"
#include "unit_base.h"
#include "unit_neopixel.h"
#define NPX_INTERNAL
#include "_npx_internal.h"
#include "ws2812.h"
/* Clear the strip */
error_t UU_Npx_Clear(Unit *unit)
{
CHECK_TYPE(unit, &UNIT_NEOPIXEL);
struct priv *priv = unit->data;
ws2812_clear(priv->port, priv->ll_pin, priv->pixels);
return E_SUCCESS;
}
/* Load packed */
error_t UU_Npx_Load(Unit *unit, const uint8_t *packed_rgb, uint32_t nbytes)
{
CHECK_TYPE(unit, &UNIT_NEOPIXEL);
struct priv *priv = unit->data;
if (nbytes != 3*priv->pixels) return E_BAD_COUNT;
ws2812_load_raw(priv->port, priv->ll_pin, packed_rgb, priv->pixels);
return E_SUCCESS;
}
/* Load U32, LE or BE */
static error_t load_u32(Unit *unit, const uint8_t *bytes, uint32_t nbytes, bool bige)
{
CHECK_TYPE(unit, &UNIT_NEOPIXEL);
struct priv *priv = unit->data;
if (nbytes != 4*priv->pixels) return E_BAD_COUNT;
ws2812_load_sparse(priv->port, priv->ll_pin, bytes, priv->pixels, bige);
return E_SUCCESS;
}
/* Load U32, LE */
inline error_t UU_Npx_LoadU32LE(Unit *unit, const uint8_t *bytes, uint32_t nbytes)
{
return load_u32(unit, bytes, nbytes, false);
}
/* Load U32, BE */
inline error_t UU_Npx_LoadU32BE(Unit *unit, const uint8_t *bytes, uint32_t nbytes)
{
return load_u32(unit, bytes, nbytes, true);
}
/* Get the pixel count */
error_t UU_Npx_GetCount(Unit *unit, uint16_t *count)
{
CHECK_TYPE(unit, &UNIT_NEOPIXEL);
struct priv *priv = unit->data;
*count = priv->pixels;
return E_SUCCESS;
}