// --------------------------------------------------------------------------------------------------------------------
/// \file  gpio.c
/// \brief Description
// --------------------------------------------------------------------------------------------------------------------
// 
// vbchaos software design
//
// --------------------------------------------------------------------------------------------------------------------
/// $Revision: $
/// $Author: $
/// $Date: $
//  (c) 2023 vbchaos
// --------------------------------------------------------------------------------------------------------------------


// --------------------------------------------------------------------------------------------------------------------
// Include files
// --------------------------------------------------------------------------------------------------------------------

#include <gpio.h>
#include "driver/gpio.h"

// --------------------------------------------------------------------------------------------------------------------
// Constant and macro definitions
// --------------------------------------------------------------------------------------------------------------------


// --------------------------------------------------------------------------------------------------------------------
// Type definitions
// --------------------------------------------------------------------------------------------------------------------


// --------------------------------------------------------------------------------------------------------------------
// File-scope variables
// --------------------------------------------------------------------------------------------------------------------



// --------------------------------------------------------------------------------------------------------------------
// Function declarations
// --------------------------------------------------------------------------------------------------------------------



// --------------------------------------------------------------------------------------------------------------------
// Function definitions
// --------------------------------------------------------------------------------------------------------------------


gpio::gpio(uint32_t number, Direction_t direction, Value_t initialValue)
{
   this->number = number;
   this->direction = direction;

   //zero-initialize the config structure.
   gpio_config_t io_conf = {};
   //disable interrupt
   io_conf.intr_type = GPIO_INTR_DISABLE;
   //set as output mode
   io_conf.mode = (this->direction == GPIO_DIRECTION_OUTPUT) ? GPIO_MODE_OUTPUT : GPIO_MODE_INPUT;
   //bit mask of the pins that you want to set
   io_conf.pin_bit_mask = (1ULL << this->number);
   //disable pull-down mode
   io_conf.pull_down_en = GPIO_PULLDOWN_DISABLE;
   //disable pull-up mode
   io_conf.pull_up_en = GPIO_PULLUP_DISABLE;
   //configure GPIO with the given settings
   ESP_ERROR_CHECK(gpio_config(&io_conf));

   this->currentState = GPIO_VALUE_LOW;

   set(initialValue);

}


FunctionStatus gpio::set(Value_t value)
{
   FunctionStatus returnValue = FUNCTION_STATUS_ERROR;

   if (this->direction == GPIO_DIRECTION_OUTPUT)
   {
      ESP_ERROR_CHECK(gpio_set_level((gpio_num_t)this->number, (uint32_t)value));
      this->currentState = value;
      returnValue = FUNCTION_STATUS_OK;
   }

   return returnValue;
}


FunctionStatus gpio::get(Value_t* value)
{
   FunctionStatus returnValue = FUNCTION_STATUS_OK;

   if (gpio_get_level((gpio_num_t)this->number))
   {
      this->currentState = GPIO_VALUE_HIGH;
   }
   else
   {
      this->currentState = GPIO_VALUE_LOW;
   }

   *value = this->currentState;

   return returnValue;
}


FunctionStatus gpio::toogle()
{
   FunctionStatus returnValue = FUNCTION_STATUS_ERROR;

   if (this->currentState == GPIO_VALUE_LOW)
   {
      // Going to HIGH
      set(GPIO_VALUE_HIGH);
   }
   else
   {
      // Going to LOW
      set(GPIO_VALUE_LOW);
   }

   return returnValue;
}