ra8_lvd_internal.h

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#pragma once
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <stdint.h>
 
#include "ra8_attributes.h"
#include "ra8_err.h"
#include "ra8_lvd.h"
 
/* =============================================================================
 * Cross-TU channel-map sharing
 *
 * The ra8_lvd driver is split across multiple translation units
 * (ra8_lvd.c plus ra8_lvd_runtime.c / ra8_lvd_events.c). The channel-map
 * descriptor, its index enum, the lookup table, and the handful of
 * register helpers below are referenced by more than one TU, so they
 * live here -- defined once in ra8_lvd.c, declared for every consumer.
 * =============================================================================
 */

typedef struct {
  ra8_lvd_off_t cmpcr;   
  ra8_lvd_off_t cr0;     
  ra8_lvd_off_t cr1;     
  ra8_lvd_off_t sr;      
  ra8_lvd_off_t fcr;     
  bool          has_irq; 
} ra8_lvd_channel_map_t;

typedef enum : uint8_t {
  k_ra8_lvd_map_idx_ch1   = 0U, 
  k_ra8_lvd_map_idx_ch2   = 1U, 
  k_ra8_lvd_map_idx_ch4   = 2U, 
  k_ra8_lvd_map_idx_ch5   = 3U, 
  k_ra8_lvd_map_idx_count = 4U, 
} ra8_lvd_map_idx_t;

extern const ra8_lvd_channel_map_t g_lvd_map[k_ra8_lvd_map_idx_count];

RA8_PRIV ra8_err_t priv_ra8_lvd_internal_channel_to_idx(ra8_lvd_channel_t channel,
                                                        uint8_t*          out_idx);

RA8_PRIV ra8_err_t priv_ra8_lvd_internal_validate_div(ra8_lvd_loco_div_t div);

RA8_PRIV uint8_t priv_ra8_lvd_internal_read_ri(const ra8_lvd_channel_map_t* map);

RA8_PRIV void priv_ra8_lvd_internal_cr0_rmw(const ra8_lvd_channel_map_t* map,
                                            uint8_t                      clear_mask,
                                            uint8_t                      set_bits);

RA8_PRIV bool priv_ra8_lvd_internal_reject_hvd_after(uint32_t hvd_val,
                                                     uint32_t after_assert_val,
                                                     uint32_t hysteresis,
                                                     uint32_t negate);

RA8_PRIV bool
priv_ra8_lvd_internal_set_ri_bit(uint32_t reset_val, uint32_t reset_on_rise_val, uint32_t response);
 
#ifdef __cplusplus
}
#endif