ra8_esp_hosted_pins.c

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#include "ra8_esp_hosted_pins.h"
 
#include <stdint.h>
 
#include "ra8_attributes.h"
#include "ra8_board_ek_ra8d2_connectors.h"
#include "ra8_port_constants.h"

typedef enum : uint8_t {
  k_ra8_esp_hosted_irq_pmod1_sideband = 11U,
  k_ra8_esp_hosted_irq_pmod1_cs = 14U,
} ra8_esp_hosted_irq_route_t;

typedef struct ra8_esp_hosted_irq_route {
  uint16_t pin; 
  uint8_t  irq; 
} ra8_esp_hosted_irq_route_row_t;

static const ra8_esp_hosted_irq_route_row_t s_ra8_esp_hosted_irq_map[] = {
  {.pin = (uint16_t)k_ra8_board_pmod1_irq, .irq = (uint8_t)k_ra8_esp_hosted_irq_pmod1_sideband},
  {.pin = (uint16_t)k_ra8_board_pmod1_spi_cs, .irq = (uint8_t)k_ra8_esp_hosted_irq_pmod1_cs},
  {.pin = (uint16_t)k_ra8_board_pmod1_reset, .irq = (uint8_t)k_ra8_esp_hosted_irq_none},
  {.pin = (uint16_t)k_ra8_board_pmod1_gpio_a, .irq = (uint8_t)k_ra8_esp_hosted_irq_none},
  {.pin = (uint16_t)k_ra8_board_pmod1_gpio_b, .irq = (uint8_t)k_ra8_esp_hosted_irq_none},
};

static const uint32_t s_ra8_esp_hosted_irq_map_rows =
  (uint32_t)(sizeof(s_ra8_esp_hosted_irq_map) / sizeof(s_ra8_esp_hosted_irq_map[0]));

uint8_t ra8_esp_hosted_pin_irq_num(ra8_port_pin_t pin)
{
  const uint16_t wanted = (uint16_t)pin;
 
  for (uint32_t row = 0U; row < s_ra8_esp_hosted_irq_map_rows; row++) {
    if (s_ra8_esp_hosted_irq_map[row].pin == wanted) {
      return s_ra8_esp_hosted_irq_map[row].irq;
    }
  }
 
  return (uint8_t)k_ra8_esp_hosted_irq_none;
}