riscv_plic.h File Reference

Driver for Platform Level Interrupt Controller (PLIC) More...

#include <zephyr/device.h>

Go to the source code of this file.

Functions
void	riscv_plic_irq_enable (uint32_t irq)
	Enable interrupt.
void	riscv_plic_irq_disable (uint32_t irq)
	Disable interrupt.
int	riscv_plic_irq_is_enabled (uint32_t irq)
	Check if an interrupt is enabled.
void	riscv_plic_set_priority (uint32_t irq, uint32_t prio)
	Set interrupt priority.
int	riscv_plic_irq_set_affinity (uint32_t irq, uint32_t cpumask)
	Set IRQ affinity.
void	riscv_plic_irq_set_pending (uint32_t irq)
	Set interrupt as pending.
unsigned int	riscv_plic_get_irq (void)
	Get active interrupt ID.
const struct device *	riscv_plic_get_dev (void)
	Get active interrupt controller device.

Detailed Description

Driver for Platform Level Interrupt Controller (PLIC)

Function Documentation

riscv_plic_get_dev()

const struct device * riscv_plic_get_dev

(

void

)

Get active interrupt controller device.

Note

Should be called with interrupt locked

Returns

Returns device pointer of the active interrupt device

riscv_plic_get_irq()

unsigned int riscv_plic_get_irq

(

void

)

Get active interrupt ID.

Note

Should be called with interrupt locked

Returns

Returns the ID of an active interrupt

riscv_plic_irq_disable()

void riscv_plic_irq_disable

(

uint32_t

irq

)

Disable interrupt.

Parameters

irq	Multi-level encoded interrupt ID

riscv_plic_irq_enable()

void riscv_plic_irq_enable

(

uint32_t

irq

)

Enable interrupt.

Parameters

irq	Multi-level encoded interrupt ID

riscv_plic_irq_is_enabled()

int riscv_plic_irq_is_enabled

(

uint32_t

irq

)

Check if an interrupt is enabled.

Parameters

irq	Multi-level encoded interrupt ID

Returns

Returns true if interrupt is enabled, false otherwise

riscv_plic_irq_set_affinity()

int riscv_plic_irq_set_affinity	(	uint32_t	irq,
		uint32_t	cpumask )

Set IRQ affinity.

Parameters

irq	IRQ line.
cpumask	CPU bit mask.

Returns

0 if success, negative errno value otherwise

riscv_plic_irq_set_pending()

void riscv_plic_irq_set_pending

(

uint32_t

irq

)

Set interrupt as pending.

Parameters

irq	Multi-level encoded interrupt ID

riscv_plic_set_priority()

void riscv_plic_set_priority	(	uint32_t	irq,
		uint32_t	prio )

Set interrupt priority.

Parameters

irq	Multi-level encoded interrupt ID
prio	interrupt priority