#include <kernel/cpu/interrupt.h>
#include <kernel/sync/rwlock.h>
#include <stdbool.h>
#include <stdint.h>
#include <sys/list.h>

Include dependency graph for irq.h:

This graph shows which files directly or indirectly include this file:

Data Structures
struct	irq_func_data_t
	Data passed to IRQ functions. More...

struct	irq_handler_t
	Structure to hold an IRQ function and its data. More...

struct	irq_t
	IRQ structure. More...

struct	irq_domain_t
	IRQ domain structure. More...

struct	irq_chip_t
	IRQ chip structure. More...

Macros
#define	IRQ_PHYS_NONE UINT32_MAX
	Constant representing no physical IRQ.

#define	IRQ_INVOKE(virt) asm volatile("int %0" : : "i"(virt));
	Invoke the given virtual IRQ.

Typedefs
typedef struct cpu	cpu_t

typedef struct irq_chip	irq_chip_t

typedef struct irq_domain	irq_domain_t

typedef struct irq	irq_t

typedef uint32_t	irq_phys_t
	Physical IRQ numbers.

typedef uint8_t	irq_virt_t
	Virtual IRQ numbers.

typedef void(*	irq_func_t) (irq_func_data_t *data)
	Callback function type for IRQs.

Enumerations
enum	irq_flags_t { IRQ_POLARITY_HIGH = 0 << 0 , IRQ_POLARITY_LOW = 1 << 0 , IRQ_TRIGGER_LEVEL = 0 << 1 , IRQ_TRIGGER_EDGE = 1 << 1 , IRQ_EXCLUSIVE = 0 << 2 , IRQ_SHARED = 1 << 2 }
	IRQ flags. More...

Functions
void	irq_init (void)
	Initialize the IRQ subsystem.

void	irq_dispatch (interrupt_frame_t frame, cpu_t self)
	Dispatch an IRQ.

uint64_t	irq_virt_alloc (irq_virt_t out, irq_phys_t phys, irq_flags_t flags, cpu_t cpu)
	Allocate a virtual IRQ mapped to the given physical IRQ.

void	irq_virt_free (irq_virt_t virt)
	Free a previously allocated virtual IRQ.

uint64_t	irq_virt_set_affinity (irq_virt_t virt, cpu_t *cpu)
	Change the CPU responsible for an IRQ.

uint64_t	irq_chip_register (irq_chip_t chip, irq_phys_t start, irq_phys_t end, void private)
	Register an IRQ chip for a range of physical IRQs.

void	irq_chip_unregister (irq_chip_t *chip, irq_phys_t start, irq_phys_t end)
	Unregister all instances of the given IRQ chip within the specified range.

uint64_t	irq_chip_amount (void)
	Get the number of registered IRQ chips.

uint64_t	irq_handler_register (irq_virt_t virt, irq_func_t func, void *private)
	Register an IRQ handler for a virtual IRQ.

void	irq_handler_unregister (irq_func_t func, irq_virt_t virt)
	Unregister an IRQ handler.

Typedef Documentation

◆ cpu_t

typedef struct cpu cpu_t

Definition at line 10 of file irq.h.

typedef struct irq_chip irq_chip_t

Definition at line 12 of file irq.h.

typedef struct irq_domain irq_domain_t

Definition at line 13 of file irq.h.

typedef struct irq irq_t

Definition at line 14 of file irq.h.