/**
  ******************************************************************************
  * @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_GPIOC_CLK_ENABLE();
  __HAL_RCC_GPIOH_CLK_ENABLE();
  __HAL_RCC_GPIOA_CLK_ENABLE();
  __HAL_RCC_GPIOB_CLK_ENABLE();

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(GPIOB, Relay1_Pin|Relay2_Pin, GPIO_PIN_RESET);

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

  /*Configure GPIO pin : PtPin */
  GPIO_InitStruct.Pin = Key1_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
  GPIO_InitStruct.Pull = GPIO_PULLUP;
  HAL_GPIO_Init(Key1_GPIO_Port, &GPIO_InitStruct);

  /*Configure GPIO pins : PBPin PBPin PBPin PBPin
                           PBPin PBPin */
  GPIO_InitStruct.Pin = Relay1_Pin|Relay2_Pin|SysLed_Pin|BlueLed_Pin
                          |RedLed_Pin|GreenLed_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 = Key2_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
  GPIO_InitStruct.Pull = GPIO_PULLUP;
  HAL_GPIO_Init(Key2_GPIO_Port, &GPIO_InitStruct);

  /* EXTI interrupt init*/
  HAL_NVIC_SetPriority(EXTI15_10_IRQn, 2, 0);
  HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);

}

/* USER CODE BEGIN 2 */

gpio_t     leds[LedMax] =
{
	{ "SysLed",   SysLed_GPIO_Port,   SysLed_Pin},
	{ "RedLed",   RedLed_GPIO_Port,   RedLed_Pin},
	{ "GreenLed", GreenLed_GPIO_Port, GreenLed_Pin},
	{ "BlueLed",  BlueLed_GPIO_Port,  BlueLed_Pin},
};

gpio_t     relays[RelayMax] =
{
	{ "Relay1", Relay1_GPIO_Port,   Relay1_Pin},
	{ "Relay2", Relay2_GPIO_Port,   Relay2_Pin},
};

void turn_relay(int which, int status)
{
	GPIO_PinState        level;

	if( which >= LedMax )
		return ;

	level = status==OFF ? GPIO_PIN_RESET : GPIO_PIN_SET;

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


void turn_led(int which, int status)
{
	GPIO_PinState        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(int which, uint32_t interval)
{
	turn_led(which, ON);
	HAL_Delay(interval);

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


void sysled_hearbeat(void)
{
	blink_led(SysLed, 100);
	blink_led(SysLed, 100);
	blink_led(SysLed, 800);
}


void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
	static uint8_t     relay1_status = OFF;
	static uint8_t     relay2_status = OFF;


	if( Key1_Pin == GPIO_Pin )
	{
		relay1_status ^= 1;
		turn_relay(Relay1, relay1_status);
	}
	else if( Key2_Pin == GPIO_Pin )
	{
		relay2_status ^= 1;
		turn_relay(Relay2, relay2_status);
	}
}

/* USER CODE END 2 */

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