/* QMSI GPIO app example
*
*  PIN_OUT will be the output pin
*  PIN_IN will be the input pin with interrupts enabled
*
*  https://communities.intel.com/thread/101009
*/

#include "qm_gpio.h"
#include "qm_interrupt.h"

/* Connect LED to PIN_OUT (SSO 10)*/
#define PIN_OUT 0
/*Connect Button to PIN_INTR (A0)*/
#define PIN_IN 3

static void gpio_example_callback(uint32_t);

int main(void)
{
  qm_gpio_port_config_t cfg;


  /* Request IRQ and write GPIO port config */
  cfg.direction = BIT(PIN_OUT);		/* Output Pin */
  cfg.int_en = BIT(PIN_IN);       /* Interrupt enabled for input pin */
  cfg.int_type = BIT(PIN_IN);     /* Edge sensitive interrupt */
  cfg.int_polarity = BIT(PIN_IN); /* Rising edge */
  cfg.int_debounce = BIT(PIN_IN); /* Debounce enabled */
  cfg.int_bothedge = 0x0;  /* Both edge disabled */
  cfg.callback = gpio_example_callback;	/* When rising edge on PIN_IN occurs,
   	   gpio_example_callback is called */

  qm_irq_request(QM_IRQ_GPIO_0, qm_gpio_isr_0);

  qm_gpio_set_config(QM_GPIO_0, &cfg);

  /* Turn off the LED to start */
  qm_gpio_clear_pin(QM_GPIO_0, PIN_OUT);

  while(1)
  {
	  /* Your code goes here */
	  /* Run infinitely */
  }
  return 0;
}

/* Function called when interrupt occurs (input pin goes from LOW to HIGH) */
void gpio_example_callback(uint32_t status)
{
  /* toggle LED state  - ON/OFF  */
	/* If LED is off, turn it on */
  if(false == qm_gpio_read_pin(QM_GPIO_0, PIN_OUT))
  {
	  qm_gpio_set_pin(QM_GPIO_0, PIN_OUT);
  }
  else{	/* If LED was on, turn it off */
	  qm_gpio_clear_pin(QM_GPIO_0, PIN_OUT);
  }
}