ra8_icu.h

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#pragma once
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <stdint.h>
 
#include "ra8_elc_regs.h"
#include "ra8_err.h"
#include "ra8_icu_regs.h"
 
/* =============================================================================
 * IRQ pin configuration
 * =============================================================================
 */

typedef struct {
  ra8_icu_irqmd_t   sense;      
  ra8_icu_fclksel_t filter_div; 
  bool              filter_en;  
} ra8_icu_irq_cfg_t;
 
/* =============================================================================
 * Lifecycle
 * =============================================================================
 */

[[nodiscard]] ra8_err_t ra8_icu_init(void);
 
/* =============================================================================
 * External IRQ pin programming
 * =============================================================================
 */

[[nodiscard]] ra8_err_t ra8_icu_configure_irq_pin(uint8_t irq_num, const ra8_icu_irq_cfg_t* cfg);

[[nodiscard]] ra8_err_t ra8_icu_read_irqcr(uint8_t irq_num, uint8_t* out_val);
 
/* =============================================================================
 * NMI handling
 * =============================================================================
 */

[[nodiscard]] ra8_err_t ra8_icu_nmi_enable(uint32_t mask);

[[nodiscard]] ra8_err_t ra8_icu_nmi_disable(uint32_t mask);

[[nodiscard]] ra8_err_t ra8_icu_nmi_clear(uint32_t mask);

[[nodiscard]] ra8_err_t ra8_icu_nmi_status(uint32_t* out_status);
 
#ifdef __cplusplus
}
#endif