GPIO_in_example.c.txt

/*!\file GPIO_in_example.c
** \author SMFSW
** \copyright MIT (c) 2017-2024, SMFSW
** \brief GPIO_in example
** \note Simple GPIO_in.c / GPIO_ex.c example to handle different GPIO inputs with callbacks
**/

#include "sarmfsw.h"

#include "GPIO_in.h"


#define IN_B0_GPIO_Port GPIOB
#define IN_B0_Pin GPIO_PIN_0
#define IN_B1_GPIO_Port GPIOB
#define IN_B1_Pin GPIO_PIN_1
#define IN_B2_GPIO_Port GPIOB
#define IN_B2_Pin GPIO_PIN_2


static GPIO_in pb_B0;	//!< GPIO_in pb_B0 instance structure declaration
static GPIO_in pb_B1;	//!< GPIO_in pb_B1 instance structure declaration
static GPIO_in pb_B2;	//!< GPIO_in pb_B2 instance structure declaration

static GPIO_in * const GPIOs_in[] = { &pb_B0, &pb_B1, &pb_B2 };	//!< GPIO_in pointers array (for handler loop)
static const uint8_t GPIOs_in_nb = SZ_ARRAY(GPIOs_in);			//!< Number of GPIOs_in


/*!\brief Callback for inputs when pushing
** \note Callbacks On declared with same function callback (to demonstrate use of passed argument GPIO_in *)
**/
static void PB_Callback_ON(GPIO_in * const in)
{
	static uint32_t hRepeatB2 = 0;

	if (in == &pb_B0)
	{
		// On Callback for pb_B0
	}
	else if (in == &pb_B1)
	{
		// On Callback for pb_B1
	}
	else if (in == &pb_B2)
	{
		if (TPSSUP_MS(hRepeatB2, 500))	// Repeat every 500ms
		{
			hRepeatB2 = HALTicks();

			// On Callback for pb_B2 (repeat)
		}
	}
}


/*!\brief Callback for B0 when releasing
** \note Callbacks Off declared with different function callback (to demonstrate both possibilities)
**/
static void PB_Callback_OFF_B0(GPIO_in * const in)
{
	// Off Callback for pb_B0
}

/*!\brief Callback for B1 when releasing
** \note Callbacks Off declared with different function callback (to demonstrate both possibilities)
**/
static void PB_Callback_OFF_B1(GPIO_in * const in)
{
	// Off Callback for pb_B1
}

/*!\brief Callback for B2 when releasing
** \note Callbacks Off declared with different function callback (to demonstrate both possibilities)
**/
static void PB_Callback_OFF_B2(GPIO_in * const in)
{
	// Off Callback for pb_B2
}


void GPIO_in_example_handler(void)
{
	static bool init_io = false;

	if (!init_io)
	{
		// Inputs configured logic low active, 75ms debounce, both OFF & ON callbacks (with ON repeat only for B2)
		GPIO_in_init(&pb_B0, GPIO(IN_B0), false, 75, PB_Callback_ON, PB_Callback_OFF_B0, false);
		GPIO_in_init(&pb_B1, GPIO(IN_B1), false, 75, PB_Callback_ON, PB_Callback_OFF_B1, false);
		GPIO_in_init(&pb_B2, GPIO(IN_B2), false, 75, PB_Callback_ON, PB_Callback_OFF_B2, true);

		init_io = true;
	}

	for (unsigned int i = 0 ; i < GPIOs_in_nb ; i++)
	{
		GPIO_in_handler(GPIOs_in[i]);
	}
}