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gex-core/units/neopixel/_npx_init.c

63 lines
1.4 KiB

//
// Created by MightyPork on 2018/02/03.
//
#include "platform.h"
#include "unit_base.h"
#define NPX_INTERNAL
#include "_npx_internal.h"
#include "ws2812.h"
/** Allocate data structure and set defaults */
error_t Npx_preInit(Unit *unit)
{
struct priv *priv = unit->data = calloc_ck(1, sizeof(struct priv));
if (priv == NULL) return E_OUT_OF_MEM;
// some defaults
priv->pin_number = 0;
priv->port_name = 'A';
priv->pixels = 1;
return E_SUCCESS;
}
/** Finalize unit set-up */
error_t Npx_init(Unit *unit)
{
bool suc = true;
struct priv *priv = unit->data;
// --- Parse config ---
priv->ll_pin = hw_pin2ll(priv->pin_number, &suc);
priv->port = hw_port2periph(priv->port_name, &suc);
Resource rsc = hw_pin2resource(priv->port_name, priv->pin_number, &suc);
if (!suc) return E_BAD_CONFIG;
// --- Claim resources ---
TRY(rsc_claim(unit, rsc));
// --- Init hardware ---
LL_GPIO_SetPinMode(priv->port, priv->ll_pin, LL_GPIO_MODE_OUTPUT);
LL_GPIO_SetPinOutputType(priv->port, priv->ll_pin, LL_GPIO_OUTPUT_PUSHPULL);
LL_GPIO_SetPinSpeed(priv->port, priv->ll_pin, LL_GPIO_SPEED_FREQ_HIGH);
// clear strip
ws2812_clear(priv->port, priv->ll_pin, priv->pixels);
return E_SUCCESS;
}
/** Tear down the unit */
void Npx_deInit(Unit *unit)
{
// pins are de-inited during teardown
// Release all resources
rsc_teardown(unit);
// Free memory
free_ck(unit->data);
}