/******************************************************************************
 * File:        MCU_PIO_priv.h
 * Component:   MCU_PIO
 * Description: Private header — extern config array and runtime control
 *              struct holding pre-claimed DMA channels per instance.
 *
 * Layer:       MCU (hardware abstraction) - internal use only
 *****************************************************************************/

#ifndef MCU_PIO_PRIV_H
#define MCU_PIO_PRIV_H

#include "MCU_PIO.h"
#include "MCU_PIO_cfg.h"

extern const MCU_PIO_tstrConfig MCU_PIO_astrConfig[MCU_PIO_NUM_INSTANCES];

/* ------------------------------------------------------------------------ */
/*                    RUNTIME CONTROL STRUCTURE                              */
/* ------------------------------------------------------------------------ */

/**
 * @brief  Per-instance runtime state.
 *
 * as8DmaChannel — DMA channel claimed during Init for async FIFO writes.
 *                 One channel per PIO instance, reserved for the lifetime
 *                 of the application.
 */
typedef struct
{
    s8 as8DmaChannel[MCU_PIO_NUM_INSTANCES];
} MCU_PIO_tstrControl;

#endif /* MCU_PIO_PRIV_H */