reflow-oven-control-sw/stm-firmware/digio.c

#include <reflow-controller/digio.h>
#include <stm32/stm32f4xx.h>
#include <stm-periph/clock-enable-manager.h>
#include <stm-periph/stm32-gpio-macros.h>
#include <helper-macros/helper-macros.h>

static const uint8_t digio_pins[] = {DIGIO_PINS};
static const uint8_t digio_default_io[] = {DIGIO_INOUT_DEFAULT};
static const uint8_t digio_default_altfunc[] = {DIGIO_ALTFUNC_DEFAULT};

static void digio_setup_pin_int(uint8_t bit_no, uint8_t in_out, uint8_t alt_func)
{
	DIGIO_PORT->MODER &= MODER_DELETE(bit_no);
	switch (in_out) {
	case 2:
		DIGIO_PORT->MODER |= ALTFUNC(bit_no);
		SETAF(DIGIO_PORT, bit_no, alt_func);
		break;
	case 1:
		DIGIO_PORT->MODER |= OUTPUT(bit_no);
		break;
	case 0: /* expected fallthrough */
	default:
		break;
	}

}

void digio_setup_default_all()
{
	unsigned int i;

	rcc_manager_enable_clock(&RCC->AHB1ENR, BITMASK_TO_BITNO(DIGIO_RCC_MASK));

	for (i = 0; i < COUNT_OF(digio_pins); i++) {
		digio_setup_pin_int(digio_pins[i], digio_default_io[i], digio_default_altfunc[i]);
		if (digio_default_io[i] == 1)
			digio_set(i, 0);
	}
}

void digio_setup_pin(uint8_t num, uint8_t in_out, uint8_t alt_func)
{
	if (num >= COUNT_OF(digio_pins))
		return;
	digio_setup_pin_int(digio_pins[num], in_out, alt_func);
}

void digio_set(uint8_t num, int val)
{
	if (num >= COUNT_OF(digio_pins))
		return;
	if (val)
		DIGIO_PORT->ODR |= (1<<digio_pins[num]);
	else
		DIGIO_PORT->ODR &= ~(1<<digio_pins[num]);
}

int digio_get(uint8_t num)
{
	if (num >= COUNT_OF(digio_pins))
		return -1;

	if ((DIGIO_PORT->MODER & (0x3<<digio_pins[num])) == OUTPUT(digio_pins[num]))
		return (DIGIO_PORT->ODR & (1<<digio_pins[num]) ? 1 : 0);
	else
		return (DIGIO_PORT->IDR & (1<<digio_pins[num]) ? 1 : 0);
}

static const uint8_t led_pins[] = {LED_PINS};

void led_setup()
{
	unsigned int i;

	rcc_manager_enable_clock(&RCC->AHB1ENR, BITMASK_TO_BITNO(LED_RCC_MASK));
	for (i = 0; i < COUNT_OF(led_pins); i++) {
		LED_PORT->MODER &= MODER_DELETE(led_pins[i]);
		LED_PORT->MODER |= OUTPUT(led_pins[i]);
	}
}

void led_set(uint8_t num, int val)
{
	if (num >= COUNT_OF(led_pins))
		return;
	if (val)
		LED_PORT->ODR |= (1<<led_pins[num]);
	else
		LED_PORT->ODR &= ~(1<<led_pins[num]);
}

int led_get(uint8_t num)
{
	if (num >= COUNT_OF(led_pins))
		return -1;

	return ((LED_PORT->ODR & (1<<led_pins[num])) ? 1 : 0);
}

void loudspeaker_setup()
{
	rcc_manager_enable_clock(&RCC->AHB1ENR, BITMASK_TO_BITNO(LOUDSPEAKER_RCC_MASK));

	LOUDSPEAKER_PORT->MODER &= MODER_DELETE(LOUDSPEAKER_PIN);
	LOUDSPEAKER_PORT->MODER |= OUTPUT(LOUDSPEAKER_PIN);

	loudspeaker_set(0);
}
void loudspeaker_set(int val)
{
	if (val)
		LOUDSPEAKER_PORT->ODR |= (1<<LOUDSPEAKER_PIN);
	else
		LOUDSPEAKER_PORT->ODR &= ~(1<<LOUDSPEAKER_PIN);
}
int loudspeaker_get()
{
	return ((LOUDSPEAKER_PORT->ODR & (1<<LOUDSPEAKER_PIN)) ? 1 : 0);
}