ra8_port_utils.h

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#pragma once
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <stdint.h>
 
#include "ra8_err.h"
#include "ra8_gpio_constants.h"
#include "ra8_icu_regs.h"
#include "ra8_isr.h"
#include "ra8_pfs_regs.h"
#include "ra8_port_constants.h"

[[nodiscard]] ra8_err_t ra8_gpio_output_init(ra8_port_pin_t pin, ra8_level_t init_level);

[[nodiscard]] ra8_err_t ra8_gpio_input_init(ra8_port_pin_t pin, ra8_pin_pull_t pull);

[[nodiscard]] ra8_err_t ra8_gpio_write(ra8_port_pin_t pin, ra8_level_t level);

[[nodiscard]] ra8_err_t ra8_gpio_toggle(ra8_port_pin_t pin);

[[nodiscard]] ra8_err_t ra8_gpio_read(ra8_port_pin_t pin, ra8_level_t* out_level);

[[nodiscard]] ra8_err_t ra8_gpio_release(ra8_port_pin_t pin);

[[nodiscard]] ra8_err_t
ra8_pfs_route_peripheral(ra8_port_pin_t pin, ra8_psel_t psel, const char* owner);

[[nodiscard]] ra8_err_t ra8_pfs_set_drive_strength(ra8_port_pin_t pin, ra8_pfs_dscr_t dscr);
 
/* =============================================================================
 * External IRQ attachment
 * =============================================================================
 */

typedef struct {
  ra8_pin_pull_t    pull;       
  ra8_icu_irqmd_t   sense;      
  ra8_icu_fclksel_t filter_div; 
  bool              filter_en;  
  uint8_t           priority;   
} ra8_gpio_irq_cfg_t;

[[nodiscard]] ra8_err_t ra8_gpio_attach_irq(ra8_port_pin_t            pin,
                                            uint8_t                   irq_num,
                                            const ra8_gpio_irq_cfg_t* cfg,
                                            ra8_isr_handler_t         handler,
                                            void*                     ctx);

[[nodiscard]] ra8_err_t ra8_gpio_detach_irq(ra8_port_pin_t pin, uint8_t irq_num);
 
#ifdef __cplusplus
}
#endif