a8000_subboard_sdk/chip/chip.c

#include "chip.h"

#include <stdbool.h>
#include <stdint.h>
#include <stdlib.h>

uint8_t g_port_exit_critical_count;
// NVIC_EnableIRQ
// NVIC_GetEnableIRQ
// NVIC_DisableIRQ
void chip_critical_enter(void) {
  if (g_port_exit_critical_count == 0) {
    __disable_irq();
    // NVIC_DisableIRQ();
  }
  g_port_exit_critical_count++;
}
void chip_critical_exit(void) {
  g_port_exit_critical_count--;
  if (g_port_exit_critical_count == 0) {
    // NVIC_EnableIRQ();
    __enable_irq();
  }
}

GPIO_TypeDef* chip_get_gpio(Pin_t pin) {
  int port = pin >> 4;

  switch (port) {
    case 1:
#ifdef GPIOA
      return GPIOA;
#endif
      break;
    case 2:
#ifdef GPIOB
      return GPIOB;
#endif
      break;
    case 3:
#ifdef GPIOC
      return GPIOC;
#endif
      break;
    case 4:
#ifdef GPIOD
      return GPIOD;
#endif
      break;

    case 5:
#ifdef GPIOE
      return GPIOE;
#endif
      break;
    case 6:
#ifdef GPIOF
      return GPIOF;
#endif
      break;
    case 7:
#ifdef GPIOG
      return GPIOG;
#endif
      break;
    default:
      break;
  }
  return NULL;
}
uint16_t chip_get_pinoff(Pin_t pin) {
  uint16_t pinoff = pin & 0x0F;
  switch (pinoff) {
    case 0:
      return GPIO_PIN_0;
    case 1:
      return GPIO_PIN_1;
    case 2:
      return GPIO_PIN_2;
    case 3:
      return GPIO_PIN_3;
    case 4:
      return GPIO_PIN_4;
    case 5:
      return GPIO_PIN_5;
    case 6:
      return GPIO_PIN_6;
    case 7:
      return GPIO_PIN_7;
    case 8:
      return GPIO_PIN_8;
    case 9:
      return GPIO_PIN_9;
    case 10:
      return GPIO_PIN_10;
    case 11:
      return GPIO_PIN_11;
    case 12:
      return GPIO_PIN_12;
    case 13:
      return GPIO_PIN_13;
    case 14:
      return GPIO_PIN_14;
    case 15:
      return GPIO_PIN_15;
    default:
      break;
  };
  return 0;
}