interrupt.h File Reference

#include "kernel.h"

Data Structures
struct	shared_interrupt_t
	An entry in a linked list of handlers attached to an ISR. More...

Typedefs
typedef void(*	isr_t) (uint8_t isrnumber, uint64_t errorcode, uint64_t irqnumber, void *opaque)
	A definition for an interrupt handler. More...

Enumerations
enum	irq_number_t {   IRQ0 = 32 , IRQ1 = 33 , IRQ2 = 34 , IRQ3 = 35 ,   IRQ4 = 36 , IRQ5 = 37 , IRQ6 = 38 , IRQ7 = 39 ,   IRQ8 = 40 , IRQ9 = 41 , IRQ10 = 42 , IRQ11 = 43 ,   IRQ12 = 44 , IRQ13 = 45 , IRQ14 = 46 , IRQ15 = 47 ,   IRQ16 = 50 }

Functions
void	register_interrupt_handler (uint8_t n, isr_t handler, pci_dev_t device, void *opaque)
	Register an interrupt handler. More...
void	Interrupt (uint64_t isrnumber, uint64_t errorcode)
	Global routing function for interrupts (ISR number < 32) More...
void	IRQ (uint64_t isrnumber, uint64_t errorcode)
	Global routing function for IRQs (ISR number >= 32) More...

Detailed Description

Author

Craig Edwards (craig.nosp@m.edwa.nosp@m.rds@b.nosp@m.rain.nosp@m.box.c.nosp@m.c)

Copyright

Copyright (c) 2012-2023

Typedef Documentation

isr_t

typedef void(* isr_t) (uint8_t isrnumber, uint64_t errorcode, uint64_t irqnumber, void *opaque)

A definition for an interrupt handler.

Enumeration Type Documentation

irq_number_t

enum irq_number_t

Enumerator
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
IRQ16

Function Documentation

Interrupt()

void Interrupt	(	uint64_t	isrnumber,
		uint64_t	errorcode
	)

Global routing function for interrupts (ISR number < 32)

Parameters

isrnumber	ISR number
errorcode	Error code

IRQ()

void IRQ	(	uint64_t	isrnumber,
		uint64_t	errorcode
	)

Global routing function for IRQs (ISR number >= 32)

Parameters

isrnumber	ISR number
errorcode	Error code (always zero)

register_interrupt_handler()

void register_interrupt_handler	(	uint8_t	n,
		isr_t	handler,
		pci_dev_t	device,
		void *	opaque
	)

Register an interrupt handler.

Parameters

n	Interrupt number, IRQs start at 32 as per irq_number_t
handler	IRQ handler function
device	For PCI devices, specify the device node in this parameter. This is to allow for IRQ sharing.
opaque	An opaque pointer that can be passed back to your interrupt handler