drivers/interrupt_controller/intc_sam0_eic.c - third_party/github/zephyrproject-rtos/zephyr - Git at Google

 /*
  * Copyright (c) 2019 Derek Hageman <hageman@inthat.cloud>
  *
  * SPDX-License-Identifier: Apache-2.0
  */

 #define DT_DRV_COMPAT atmel_sam0_eic

 #include <zephyr/device.h>
 #include <soc.h>
 #include <zephyr/drivers/interrupt_controller/sam0_eic.h>
 #include "intc_sam0_eic_priv.h"

 struct sam0_eic_line_assignment {
 	uint8_t pin : 5;
 	uint8_t port : 2;
 	uint8_t enabled : 1;
 };

 struct sam0_eic_port_data {
 	sam0_eic_callback_t cb;
 	void *data;
 };

 struct sam0_eic_data {
 	struct sam0_eic_port_data ports[PORT_GROUPS];
 	struct sam0_eic_line_assignment lines[EIC_EXTINT_NUM];
 };

 static void wait_synchronization(void)
 {
 #ifdef REG_EIC_SYNCBUSY
 	while (EIC->SYNCBUSY.reg) {
 	}
 #else
 	while (EIC->STATUS.bit.SYNCBUSY) {
 	}
 #endif
 }

 static inline void set_eic_enable(bool on)
 {
 #ifdef REG_EIC_CTRLA
 	EIC->CTRLA.bit.ENABLE = on;
 #else
 	EIC->CTRL.bit.ENABLE = on;
 #endif
 }

 static void sam0_eic_isr(const struct device *dev)
 {
 	struct sam0_eic_data *const dev_data = dev->data;
 	uint16_t bits = EIC->INTFLAG.reg;
 	uint32_t line_index;

 	/* Acknowledge all interrupts */
 	EIC->INTFLAG.reg = bits;

 	/* No clz on M0, so just do a quick test */
 #if __CORTEX_M >= 3
 	line_index = __CLZ(__RBIT(bits));
 	bits >>= line_index;
 #else
 	if (bits & 0xFF) {
 		line_index = 0;
 	} else {
 		line_index = 8;
 		bits >>= 8;
 	}
 #endif

 	/*
 	 * Map the EIC lines to the port pin masks based on which port is
 	 * selected in the line data.
 	 */
 	for (; bits; bits >>= 1, line_index++) {
 		if (!(bits & 1)) {
 			continue;
 		}

 		/*
 		 * These could be aggregated together into one call, but
 		 * usually on a single one will be set, so just call them
 		 * one by one.
 		 */
 		struct sam0_eic_line_assignment *line_assignment =
 			&dev_data->lines[line_index];
 		struct sam0_eic_port_data *port_data =
 			&dev_data->ports[line_assignment->port];

 		port_data->cb(BIT(line_assignment->pin), port_data->data);
 	}
 }

 int sam0_eic_acquire(int port, int pin, enum sam0_eic_trigger trigger,
 		     bool filter, sam0_eic_callback_t cb, void *data)
 {
 	const struct device *const dev = DEVICE_DT_INST_GET(0);
 	struct sam0_eic_data *dev_data = dev->data;
 	struct sam0_eic_port_data *port_data;
 	struct sam0_eic_line_assignment *line_assignment;
 	uint32_t mask;
 	int line_index;
 	int config_index;
 	int config_shift;
 	unsigned int key;
 	uint32_t config;

 	line_index = sam0_eic_map_to_line(port, pin);
 	if (line_index < 0) {
 		return line_index;
 	}

 	mask = BIT(line_index);
 	config_index = line_index / 8;
 	config_shift = (line_index % 8) * 4;

 	/* Lock everything so it's safe to reconfigure */
 	key = irq_lock();
 	/* Disable the EIC for reconfiguration */
 	set_eic_enable(0);

 	line_assignment = &dev_data->lines[line_index];

 	/* Check that the required line is available */
 	if (line_assignment->enabled) {
 		if (line_assignment->port != port ||
 		    line_assignment->pin != pin) {
 			goto err_in_use;
 		}
 	}

 	/* Set the EIC configuration data */
 	port_data = &dev_data->ports[port];
 	port_data->cb = cb;
 	port_data->data = data;
 	line_assignment->pin = pin;
 	line_assignment->port = port;
 	line_assignment->enabled = 1;

 	config = EIC->CONFIG[config_index].reg;
 	config &= ~(0xF << config_shift);
 	switch (trigger) {
 	case SAM0_EIC_RISING:
 		config |= EIC_CONFIG_SENSE0_RISE << config_shift;
 		break;
 	case SAM0_EIC_FALLING:
 		config |= EIC_CONFIG_SENSE0_FALL << config_shift;
 		break;
 	case SAM0_EIC_BOTH:
 		config |= EIC_CONFIG_SENSE0_BOTH << config_shift;
 		break;
 	case SAM0_EIC_HIGH:
 		config |= EIC_CONFIG_SENSE0_HIGH << config_shift;
 		break;
 	case SAM0_EIC_LOW:
 		config |= EIC_CONFIG_SENSE0_LOW << config_shift;
 		break;
 	}

 	if (filter) {
 		config |= EIC_CONFIG_FILTEN0 << config_shift;
 	}

 	/* Apply the config to the EIC itself */
 	EIC->CONFIG[config_index].reg = config;

 	set_eic_enable(1);
 	wait_synchronization();
 	/*
 	 * Errata: The EIC generates a spurious interrupt for the newly
 	 * enabled pin after being enabled, so clear it before re-enabling
 	 * the IRQ.
 	 */
 	EIC->INTFLAG.reg = mask;
 	irq_unlock(key);
 	return 0;

 err_in_use:
 	set_eic_enable(1);
 	wait_synchronization();
 	irq_unlock(key);
 	return -EBUSY;
 }

 static bool sam0_eic_check_ownership(int port, int pin, int line_index)
 {
 	const struct device *const dev = DEVICE_DT_INST_GET(0);
 	struct sam0_eic_data *dev_data = dev->data;
 	struct sam0_eic_line_assignment *line_assignment =
 		&dev_data->lines[line_index];

 	if (!line_assignment->enabled) {
 		return false;
 	}

 	if (line_assignment->port != port ||
 	    line_assignment->pin != pin) {
 		return false;
 	}

 	return true;
 }

 int sam0_eic_release(int port, int pin)
 {
 	const struct device *const dev = DEVICE_DT_INST_GET(0);
 	struct sam0_eic_data *dev_data = dev->data;
 	uint32_t mask;
 	int line_index;
 	int config_index;
 	int config_shift;
 	unsigned int key;

 	line_index = sam0_eic_map_to_line(port, pin);
 	if (line_index < 0) {
 		return line_index;
 	}

 	mask = BIT(line_index);
 	config_index = line_index / 8;
 	config_shift = (line_index % 8) * 4;

 	/* Lock everything so it's safe to reconfigure */
 	key = irq_lock();
 	/* Disable the EIC */
 	set_eic_enable(0);
 	wait_synchronization();

 	/*
 	 * Check to make sure the requesting actually owns the line and do
 	 * nothing if it does not.
 	 */
 	if (!sam0_eic_check_ownership(port, pin, line_index)) {
 		goto done;
 	}

 	dev_data->lines[line_index].enabled = 0;

 	/* Clear the EIC config, including the trigger condition */
 	EIC->CONFIG[config_index].reg &= ~(0xF << config_shift);

 	/* Clear any pending interrupt for it */
 	EIC->INTENCLR.reg = mask;
 	EIC->INTFLAG.reg = mask;

 done:
 	set_eic_enable(1);
 	wait_synchronization();
 	irq_unlock(key);
 	return 0;
 }

 int sam0_eic_enable_interrupt(int port, int pin)
 {
 	uint32_t mask;
 	int line_index;

 	line_index = sam0_eic_map_to_line(port, pin);
 	if (line_index < 0) {
 		return line_index;
 	}

 	if (!sam0_eic_check_ownership(port, pin, line_index)) {
 		return -EBUSY;
 	}

 	mask = BIT(line_index);
 	EIC->INTFLAG.reg = mask;
 	EIC->INTENSET.reg = mask;

 	return 0;
 }

 int sam0_eic_disable_interrupt(int port, int pin)
 {
 	uint32_t mask;
 	int line_index;

 	line_index = sam0_eic_map_to_line(port, pin);
 	if (line_index < 0) {
 		return line_index;
 	}

 	if (!sam0_eic_check_ownership(port, pin, line_index)) {
 		return -EBUSY;
 	}

 	mask = BIT(line_index);
 	EIC->INTENCLR.reg = mask;
 	EIC->INTFLAG.reg = mask;

 	return 0;
 }

 uint32_t sam0_eic_interrupt_pending(int port)
 {
 	const struct device *const dev = DEVICE_DT_INST_GET(0);
 	struct sam0_eic_data *dev_data = dev->data;
 	struct sam0_eic_line_assignment *line_assignment;
 	uint32_t set = EIC->INTFLAG.reg;
 	uint32_t mask = 0;

 	for (int line_index = 0; line_index < EIC_EXTINT_NUM; line_index++) {
 		line_assignment = &dev_data->lines[line_index];

 		if (!line_assignment->enabled) {
 			continue;
 		}

 		if (line_assignment->port != port) {
 			continue;
 		}

 		if (!(set & BIT(line_index))) {
 			continue;
 		}

 		mask |= BIT(line_assignment->pin);
 	}

 	return mask;
 }


 #define SAM0_EIC_IRQ_CONNECT(n)						\
 	do {								\
 		IRQ_CONNECT(DT_INST_IRQ_BY_IDX(0, n, irq),		\
 			    DT_INST_IRQ_BY_IDX(0, n, priority),		\
 			    sam0_eic_isr, DEVICE_DT_INST_GET(0), 0);	\
 		irq_enable(DT_INST_IRQ_BY_IDX(0, n, irq));		\
 	} while (false)

 static int sam0_eic_init(const struct device *dev)
 {
 	ARG_UNUSED(dev);

 #ifdef MCLK
 	/* Enable the EIC clock in APBAMASK */
 	MCLK->APBAMASK.reg |= MCLK_APBAMASK_EIC;

 	/* Enable the GCLK */
 	GCLK->PCHCTRL[EIC_GCLK_ID].reg = GCLK_PCHCTRL_GEN_GCLK0 |
 					 GCLK_PCHCTRL_CHEN;
 #else
 	/* Enable the EIC clock in PM */
 	PM->APBAMASK.bit.EIC_ = 1;

 	/* Enable the GCLK */
 	GCLK->CLKCTRL.reg = GCLK_CLKCTRL_ID_EIC | GCLK_CLKCTRL_GEN_GCLK0 |
 			    GCLK_CLKCTRL_CLKEN;
 #endif

 #if DT_INST_IRQ_HAS_CELL(0, irq)
 	SAM0_EIC_IRQ_CONNECT(0);
 #endif
 #if DT_INST_IRQ_HAS_IDX(0, 1)
 	SAM0_EIC_IRQ_CONNECT(1);
 #endif
 #if DT_INST_IRQ_HAS_IDX(0, 2)
 	SAM0_EIC_IRQ_CONNECT(2);
 #endif
 #if DT_INST_IRQ_HAS_IDX(0, 3)
 	SAM0_EIC_IRQ_CONNECT(3);
 #endif
 #if DT_INST_IRQ_HAS_IDX(0, 4)
 	SAM0_EIC_IRQ_CONNECT(4);
 #endif
 #if DT_INST_IRQ_HAS_IDX(0, 5)
 	SAM0_EIC_IRQ_CONNECT(5);
 #endif
 #if DT_INST_IRQ_HAS_IDX(0, 6)
 	SAM0_EIC_IRQ_CONNECT(6);
 #endif
 #if DT_INST_IRQ_HAS_IDX(0, 7)
 	SAM0_EIC_IRQ_CONNECT(7);
 #endif
 #if DT_INST_IRQ_HAS_IDX(0, 8)
 	SAM0_EIC_IRQ_CONNECT(8);
 #endif
 #if DT_INST_IRQ_HAS_IDX(0, 9)
 	SAM0_EIC_IRQ_CONNECT(9);
 #endif
 #if DT_INST_IRQ_HAS_IDX(0, 10)
 	SAM0_EIC_IRQ_CONNECT(10);
 #endif
 #if DT_INST_IRQ_HAS_IDX(0, 11)
 	SAM0_EIC_IRQ_CONNECT(11);
 #endif
 #if DT_INST_IRQ_HAS_IDX(0, 12)
 	SAM0_EIC_IRQ_CONNECT(12);
 #endif
 #if DT_INST_IRQ_HAS_IDX(0, 13)
 	SAM0_EIC_IRQ_CONNECT(13);
 #endif
 #if DT_INST_IRQ_HAS_IDX(0, 14)
 	SAM0_EIC_IRQ_CONNECT(14);
 #endif
 #if DT_INST_IRQ_HAS_IDX(0, 15)
 	SAM0_EIC_IRQ_CONNECT(15);
 #endif

 	set_eic_enable(1);
 	wait_synchronization();

 	return 0;
 }

 static struct sam0_eic_data eic_data;
 DEVICE_DT_INST_DEFINE(0, sam0_eic_init,
 	      NULL, &eic_data, NULL,
 	      PRE_KERNEL_1, CONFIG_INTC_INIT_PRIORITY,
 	      NULL);
	/*
	* Copyright (c) 2019 Derek Hageman <hageman@inthat.cloud>
	*
	* SPDX-License-Identifier: Apache-2.0
	*/

	#define DT_DRV_COMPAT atmel_sam0_eic

	#include <zephyr/device.h>
	#include <soc.h>
	#include <zephyr/drivers/interrupt_controller/sam0_eic.h>
	#include "intc_sam0_eic_priv.h"

	struct sam0_eic_line_assignment {
	uint8_t pin : 5;
	uint8_t port : 2;
	uint8_t enabled : 1;
	};

	struct sam0_eic_port_data {
	sam0_eic_callback_t cb;
	void *data;
	};

	struct sam0_eic_data {
	struct sam0_eic_port_data ports[PORT_GROUPS];
	struct sam0_eic_line_assignment lines[EIC_EXTINT_NUM];
	};

	static void wait_synchronization(void)
	{
	#ifdef REG_EIC_SYNCBUSY
	while (EIC->SYNCBUSY.reg) {
	}
	#else
	while (EIC->STATUS.bit.SYNCBUSY) {
	}
	#endif
	}

	static inline void set_eic_enable(bool on)
	{
	#ifdef REG_EIC_CTRLA
	EIC->CTRLA.bit.ENABLE = on;
	#else
	EIC->CTRL.bit.ENABLE = on;
	#endif
	}

	static void sam0_eic_isr(const struct device *dev)
	{
	struct sam0_eic_data *const dev_data = dev->data;
	uint16_t bits = EIC->INTFLAG.reg;
	uint32_t line_index;

	/* Acknowledge all interrupts */
	EIC->INTFLAG.reg = bits;

	/* No clz on M0, so just do a quick test */
	#if __CORTEX_M >= 3
	line_index = __CLZ(__RBIT(bits));
	bits >>= line_index;
	#else
	if (bits & 0xFF) {
	line_index = 0;
	} else {
	line_index = 8;
	bits >>= 8;
	}
	#endif

	/*
	* Map the EIC lines to the port pin masks based on which port is
	* selected in the line data.
	*/
	for (; bits; bits >>= 1, line_index++) {
	if (!(bits & 1)) {
	continue;
	}

	/*
	* These could be aggregated together into one call, but
	* usually on a single one will be set, so just call them
	* one by one.
	*/
	struct sam0_eic_line_assignment *line_assignment =
	&dev_data->lines[line_index];
	struct sam0_eic_port_data *port_data =
	&dev_data->ports[line_assignment->port];

	port_data->cb(BIT(line_assignment->pin), port_data->data);
	}
	}

	int sam0_eic_acquire(int port, int pin, enum sam0_eic_trigger trigger,
	bool filter, sam0_eic_callback_t cb, void *data)
	{
	const struct device *const dev = DEVICE_DT_INST_GET(0);
	struct sam0_eic_data *dev_data = dev->data;
	struct sam0_eic_port_data *port_data;
	struct sam0_eic_line_assignment *line_assignment;
	uint32_t mask;
	int line_index;
	int config_index;
	int config_shift;
	unsigned int key;
	uint32_t config;

	line_index = sam0_eic_map_to_line(port, pin);
	if (line_index < 0) {
	return line_index;
	}

	mask = BIT(line_index);
	config_index = line_index / 8;
	config_shift = (line_index % 8) * 4;

	/* Lock everything so it's safe to reconfigure */
	key = irq_lock();
	/* Disable the EIC for reconfiguration */
	set_eic_enable(0);

	line_assignment = &dev_data->lines[line_index];

	/* Check that the required line is available */
	if (line_assignment->enabled) {
	if (line_assignment->port != port \|\|
	line_assignment->pin != pin) {
	goto err_in_use;
	}
	}

	/* Set the EIC configuration data */
	port_data = &dev_data->ports[port];
	port_data->cb = cb;
	port_data->data = data;
	line_assignment->pin = pin;
	line_assignment->port = port;
	line_assignment->enabled = 1;

	config = EIC->CONFIG[config_index].reg;
	config &= ~(0xF << config_shift);
	switch (trigger) {
	case SAM0_EIC_RISING:
	config \|= EIC_CONFIG_SENSE0_RISE << config_shift;
	break;
	case SAM0_EIC_FALLING:
	config \|= EIC_CONFIG_SENSE0_FALL << config_shift;
	break;
	case SAM0_EIC_BOTH:
	config \|= EIC_CONFIG_SENSE0_BOTH << config_shift;
	break;
	case SAM0_EIC_HIGH:
	config \|= EIC_CONFIG_SENSE0_HIGH << config_shift;
	break;
	case SAM0_EIC_LOW:
	config \|= EIC_CONFIG_SENSE0_LOW << config_shift;
	break;
	}

	if (filter) {
	config \|= EIC_CONFIG_FILTEN0 << config_shift;
	}

	/* Apply the config to the EIC itself */
	EIC->CONFIG[config_index].reg = config;

	set_eic_enable(1);
	wait_synchronization();
	/*
	* Errata: The EIC generates a spurious interrupt for the newly
	* enabled pin after being enabled, so clear it before re-enabling
	* the IRQ.
	*/
	EIC->INTFLAG.reg = mask;
	irq_unlock(key);
	return 0;

	err_in_use:
	set_eic_enable(1);
	wait_synchronization();
	irq_unlock(key);
	return -EBUSY;
	}

	static bool sam0_eic_check_ownership(int port, int pin, int line_index)
	{
	const struct device *const dev = DEVICE_DT_INST_GET(0);
	struct sam0_eic_data *dev_data = dev->data;
	struct sam0_eic_line_assignment *line_assignment =
	&dev_data->lines[line_index];

	if (!line_assignment->enabled) {
	return false;
	}

	if (line_assignment->port != port \|\|
	line_assignment->pin != pin) {
	return false;
	}

	return true;
	}

	int sam0_eic_release(int port, int pin)
	{
	const struct device *const dev = DEVICE_DT_INST_GET(0);
	struct sam0_eic_data *dev_data = dev->data;
	uint32_t mask;
	int line_index;
	int config_index;
	int config_shift;
	unsigned int key;

	line_index = sam0_eic_map_to_line(port, pin);
	if (line_index < 0) {
	return line_index;
	}

	mask = BIT(line_index);
	config_index = line_index / 8;
	config_shift = (line_index % 8) * 4;

	/* Lock everything so it's safe to reconfigure */
	key = irq_lock();
	/* Disable the EIC */
	set_eic_enable(0);
	wait_synchronization();

	/*
	* Check to make sure the requesting actually owns the line and do
	* nothing if it does not.
	*/
	if (!sam0_eic_check_ownership(port, pin, line_index)) {
	goto done;
	}

	dev_data->lines[line_index].enabled = 0;

	/* Clear the EIC config, including the trigger condition */
	EIC->CONFIG[config_index].reg &= ~(0xF << config_shift);

	/* Clear any pending interrupt for it */
	EIC->INTENCLR.reg = mask;
	EIC->INTFLAG.reg = mask;

	done:
	set_eic_enable(1);
	wait_synchronization();
	irq_unlock(key);
	return 0;
	}

	int sam0_eic_enable_interrupt(int port, int pin)
	{
	uint32_t mask;
	int line_index;

	line_index = sam0_eic_map_to_line(port, pin);
	if (line_index < 0) {
	return line_index;
	}

	if (!sam0_eic_check_ownership(port, pin, line_index)) {
	return -EBUSY;
	}

	mask = BIT(line_index);
	EIC->INTFLAG.reg = mask;
	EIC->INTENSET.reg = mask;

	return 0;
	}

	int sam0_eic_disable_interrupt(int port, int pin)
	{
	uint32_t mask;
	int line_index;

	line_index = sam0_eic_map_to_line(port, pin);
	if (line_index < 0) {
	return line_index;
	}

	if (!sam0_eic_check_ownership(port, pin, line_index)) {
	return -EBUSY;
	}

	mask = BIT(line_index);
	EIC->INTENCLR.reg = mask;
	EIC->INTFLAG.reg = mask;

	return 0;
	}

	uint32_t sam0_eic_interrupt_pending(int port)
	{
	const struct device *const dev = DEVICE_DT_INST_GET(0);
	struct sam0_eic_data *dev_data = dev->data;
	struct sam0_eic_line_assignment *line_assignment;
	uint32_t set = EIC->INTFLAG.reg;
	uint32_t mask = 0;

	for (int line_index = 0; line_index < EIC_EXTINT_NUM; line_index++) {
	line_assignment = &dev_data->lines[line_index];

	if (!line_assignment->enabled) {
	continue;
	}

	if (line_assignment->port != port) {
	continue;
	}

	if (!(set & BIT(line_index))) {
	continue;
	}

	mask \|= BIT(line_assignment->pin);
	}

	return mask;
	}


	#define SAM0_EIC_IRQ_CONNECT(n) \
	do { \
	IRQ_CONNECT(DT_INST_IRQ_BY_IDX(0, n, irq), \
	DT_INST_IRQ_BY_IDX(0, n, priority), \
	sam0_eic_isr, DEVICE_DT_INST_GET(0), 0); \
	irq_enable(DT_INST_IRQ_BY_IDX(0, n, irq)); \
	} while (false)

	static int sam0_eic_init(const struct device *dev)
	{
	ARG_UNUSED(dev);

	#ifdef MCLK
	/* Enable the EIC clock in APBAMASK */
	MCLK->APBAMASK.reg \|= MCLK_APBAMASK_EIC;

	/* Enable the GCLK */
	GCLK->PCHCTRL[EIC_GCLK_ID].reg = GCLK_PCHCTRL_GEN_GCLK0 \|
	GCLK_PCHCTRL_CHEN;
	#else
	/* Enable the EIC clock in PM */
	PM->APBAMASK.bit.EIC_ = 1;

	/* Enable the GCLK */
	GCLK->CLKCTRL.reg = GCLK_CLKCTRL_ID_EIC \| GCLK_CLKCTRL_GEN_GCLK0 \|
	GCLK_CLKCTRL_CLKEN;
	#endif

	#if DT_INST_IRQ_HAS_CELL(0, irq)
	SAM0_EIC_IRQ_CONNECT(0);
	#endif
	#if DT_INST_IRQ_HAS_IDX(0, 1)
	SAM0_EIC_IRQ_CONNECT(1);
	#endif
	#if DT_INST_IRQ_HAS_IDX(0, 2)
	SAM0_EIC_IRQ_CONNECT(2);
	#endif
	#if DT_INST_IRQ_HAS_IDX(0, 3)
	SAM0_EIC_IRQ_CONNECT(3);
	#endif
	#if DT_INST_IRQ_HAS_IDX(0, 4)
	SAM0_EIC_IRQ_CONNECT(4);
	#endif
	#if DT_INST_IRQ_HAS_IDX(0, 5)
	SAM0_EIC_IRQ_CONNECT(5);
	#endif
	#if DT_INST_IRQ_HAS_IDX(0, 6)
	SAM0_EIC_IRQ_CONNECT(6);
	#endif
	#if DT_INST_IRQ_HAS_IDX(0, 7)
	SAM0_EIC_IRQ_CONNECT(7);
	#endif
	#if DT_INST_IRQ_HAS_IDX(0, 8)
	SAM0_EIC_IRQ_CONNECT(8);
	#endif
	#if DT_INST_IRQ_HAS_IDX(0, 9)
	SAM0_EIC_IRQ_CONNECT(9);
	#endif
	#if DT_INST_IRQ_HAS_IDX(0, 10)
	SAM0_EIC_IRQ_CONNECT(10);
	#endif
	#if DT_INST_IRQ_HAS_IDX(0, 11)
	SAM0_EIC_IRQ_CONNECT(11);
	#endif
	#if DT_INST_IRQ_HAS_IDX(0, 12)
	SAM0_EIC_IRQ_CONNECT(12);
	#endif
	#if DT_INST_IRQ_HAS_IDX(0, 13)
	SAM0_EIC_IRQ_CONNECT(13);
	#endif
	#if DT_INST_IRQ_HAS_IDX(0, 14)
	SAM0_EIC_IRQ_CONNECT(14);
	#endif
	#if DT_INST_IRQ_HAS_IDX(0, 15)
	SAM0_EIC_IRQ_CONNECT(15);
	#endif

	set_eic_enable(1);
	wait_synchronization();

	return 0;
	}

	static struct sam0_eic_data eic_data;
	DEVICE_DT_INST_DEFINE(0, sam0_eic_init,
	NULL, &eic_data, NULL,
	PRE_KERNEL_1, CONFIG_INTC_INIT_PRIORITY,
	NULL);