/**
  ******************************************************************************
  * @file    gpio.c
  * @brief   This file provides code for the configuration
  *          of all used GPIO pins.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2021 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "gpio.h"

/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

/*----------------------------------------------------------------------------*/
/* Configure GPIO                                                             */
/*----------------------------------------------------------------------------*/
/* USER CODE BEGIN 1 */

/* USER CODE END 1 */

/** Configure pins as
        * Analog
        * Input
        * Output
        * EVENT_OUT
        * EXTI
*/
void MX_GPIO_Init(void)
{

  GPIO_InitTypeDef GPIO_InitStruct = {0};

  /* GPIO Ports Clock Enable */
  __HAL_RCC_GPIOD_CLK_ENABLE();
  __HAL_RCC_GPIOA_CLK_ENABLE();
  __HAL_RCC_GPIOB_CLK_ENABLE();

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(GPIOB, W1Dat_Pin|Relay_Pin, GPIO_PIN_RESET);

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(RedLed_GPIO_Port, RedLed_Pin, GPIO_PIN_SET);

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(GPIOB, GreenLed_Pin|BlueLed_Pin|SysLed_Pin, GPIO_PIN_SET);

  /*Configure GPIO pins : PAPin PAPin */
  GPIO_InitStruct.Pin = Key1_Pin|Key2_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  /*Configure GPIO pin : PtPin */
  GPIO_InitStruct.Pin = W1Dat_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_PULLUP;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(W1Dat_GPIO_Port, &GPIO_InitStruct);

  /*Configure GPIO pins : PBPin PBPin PBPin PBPin */
  GPIO_InitStruct.Pin = Relay_Pin|GreenLed_Pin|BlueLed_Pin|SysLed_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

  /*Configure GPIO pin : PtPin */
  GPIO_InitStruct.Pin = RedLed_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(RedLed_GPIO_Port, &GPIO_InitStruct);

  /*Configure GPIO pin : PtPin */
  GPIO_InitStruct.Pin = Key3_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  HAL_GPIO_Init(Key3_GPIO_Port, &GPIO_InitStruct);

  /* EXTI interrupt init*/
  HAL_NVIC_SetPriority(EXTI0_IRQn, 2, 0);
  HAL_NVIC_EnableIRQ(EXTI0_IRQn);

  HAL_NVIC_SetPriority(EXTI1_IRQn, 2, 0);
  HAL_NVIC_EnableIRQ(EXTI1_IRQn);

  HAL_NVIC_SetPriority(EXTI9_5_IRQn, 2, 0);
  HAL_NVIC_EnableIRQ(EXTI9_5_IRQn);

}

/* USER CODE BEGIN 2 */

static led_t         leds[LedMax] =
{
	{ SysLed_GPIO_Port,   SysLed_Pin},
	{ RedLed_GPIO_Port,   RedLed_Pin},
	{ GreenLed_GPIO_Port, GreenLed_Pin},
	{ BlueLed_GPIO_Port,  BlueLed_Pin},
};


void turn_led(uint8_t which, uint8_t status)
{
	int          level ;

	if( which >= LedMax )
		return ;

	level = status==OFF ? GPIO_PIN_SET : GPIO_PIN_RESET;

	HAL_GPIO_WritePin(leds[which].group, leds[which].pin, level);
}

void blink_led(uint8_t which, uint32_t interval)
{
	if( which >= LedMax )
		return ;

	turn_led(which, ON);
	HAL_Delay(interval);

	turn_led(which, OFF);
	HAL_Delay(interval);
}

void sysled_hearbeat(void)
{
	blink_led(SysLed, 150);
	blink_led(SysLed, 150);
	blink_led(SysLed, 700);
}

void turn_relay(uint8_t status)
{
	int          level;

	level = status==OFF ? GPIO_PIN_RESET : GPIO_PIN_SET;

	HAL_GPIO_WritePin(Relay_GPIO_Port, Relay_Pin, level);
}

/* Description: Key1, Key2, Key3 IRQ Handler callback function.*/
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
	switch( GPIO_Pin )
	{
		case Key1_Pin:
			blink_led(RedLed, 500);
			break;

		case Key2_Pin:
			blink_led(GreenLed, 500);
			break;

		case Key3_Pin:
			blink_led(BlueLed, 500);
			break;
	}

}

/* USER CODE END 2 */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/