/******************************************************************************
   Nome do Arquivo 	: main.c

   Descrição       	: Arquivo principal aula 14, exemplo 1

   Ambiente			    : WOKWI e RP2040 C/C++ SDK

   Responsável		  : Weslley M. Torres

   Versão/Data		  : 1.0.0 - 25/03/2024 - Initial version

 *****************************************************************************/

/******************************************************************************
  HEADER-FILES (Somente os arquivos necessários nesse arquivo)
******************************************************************************/
#include <stdio.h>
#include "pico/stdlib.h"
#include "display_lcd.h"
#include "hardware/gpio.h"

/*****************************************************************************/

/******************************************************************************
  Variaveis Globais
******************************************************************************/

#define BUTTON_PIN 15
#define LED_PIN 8
#define BUTTON2_PIN 14
#define LED2_PIN 7


/*****************************************************************************/

/******************************************************************************
  Prototipos das funções
******************************************************************************/

void system_init(void);
void button_callback(void);

/*****************************************************************************/

/******************************************************************************
   Funcao:		int main(void)
   Entrada:		Nenhuma (void)
   Saída:		Nenhuma (void)
   Descrição:	Função principal
 *****************************************************************************/
void main(void) 
{
  uint8_t texto_linha_um[17] = "FATEC S.A. 2025";
  uint8_t texto_linha_dois[17] = " Interrupts ";
  uint8_t texto_led1[17] = "LED 1: ";
  uint8_t texto_led2[17] = "LED 2: ";
  uint8_t texto_ligado[17] = "high";
  uint8_t texto_desligado[17] = "low";


  stdio_init_all();

  printf("Microcontroladores - Aula 12\n");
  sleep_ms(250);

  system_init();

  posicao_cursor_lcd(1, 1);
  escreve_frase_ram_lcd(texto_linha_um);
  posicao_cursor_lcd(2, 1);
  escreve_frase_ram_lcd(texto_linha_dois);
  while(true)

  {
  posicao_cursor_lcd(1, 1);
  escreve_frase_ram_lcd(texto_linha_um);
  posicao_cursor_lcd(2, 1);
  escreve_frase_ram_lcd(texto_linha_dois);
  DesligaCursor();
  gpio_put(LED2_PIN, !gpio_get(BUTTON2_PIN));  
  sleep_ms(50);
  }
}

/******************************************************************************
   Funcao:		void system_init(void)
   Entrada:		Nenhuma (void)
   Saída:		Nenhuma (void)
   Descrição:	Inicializa sistema (microcontrolador e periféricos)
 *****************************************************************************/
void system_init(void)
{
  printf("Init Hardware ....\n");
  sleep_ms(10);

  gpio_init(LED_PIN);
  gpio_set_dir(LED_PIN, GPIO_OUT);
  gpio_put(LED_PIN, 0);

  gpio_init(BUTTON_PIN);
  gpio_set_dir(BUTTON_PIN, GPIO_IN);
  gpio_pull_up(BUTTON_PIN); // Enable pull-up resistor

 gpio_init(LED2_PIN);
  gpio_set_dir(LED2_PIN, GPIO_OUT);
  gpio_put(LED2_PIN, 0);

  gpio_init(BUTTON2_PIN);
  gpio_set_dir(BUTTON2_PIN, GPIO_IN);
  gpio_pull_up(BUTTON2_PIN);

  gpio_set_irq_enabled_with_callback(BUTTON_PIN, GPIO_IRQ_EDGE_FALL|GPIO_IRQ_EDGE_RISE, true, (gpio_irq_callback_t)&button_callback);
  //gpio_set_irq_enabled_with_callback(BUTTON2_PIN, GPIO_IRQ_EDGE_FALL, true, (gpio_irq_callback_t)&button_callback);
  init_lcd();
}


/******************************************************************************
   Funcao:		void button_callback(void)
   Entrada:		Nenhuma (void)
   Saída:		Nenhuma (void)
   Descrição:	Função tratamento interrupcao do botao
 *****************************************************************************/
void button_callback(void) 
{
    gpio_put(LED_PIN, !gpio_get(LED_PIN)); // Toggle the LED
    printf("Button  1 pressed!\n");
}