Data Structures

Overview

Structs and Enums used by the driver.

Typedefs
typedef int(*	irq_handler_t) (void)
	Standard Interrupt Handler Function Pointer.

Enumerations
enum	cpu_irq_t { IRQ_SOFTWARE = MIE_MSIE , IRQ_TIMER = MIE_MTIE , IRQ_EXTERNAL = MIE_MEIE }
	CPU Interrupt Type (Standard RISC-V MIE bits). More...

Variables
int(*	interrupt_vector_table [64])(void)
	Global Interrupt Vector Table.

Typedef Documentation

irq_handler_t

typedef int(* irq_handler_t) (void)

#include <irq.h>

Standard Interrupt Handler Function Pointer.

Returns

0 on success, non-zero on error.

Definition at line 82 of file irq.h.

Enumeration Type Documentation

cpu_irq_t

enum cpu_irq_t

#include <irq.h>

CPU Interrupt Type (Standard RISC-V MIE bits).

Note

These values correspond directly to the bits in the mie CSR.

Enumerator
IRQ_SOFTWARE
IRQ_TIMER
IRQ_EXTERNAL

Definition at line 95 of file irq.h.

Variable Documentation

interrupt_vector_table

int(* interrupt_vector_table[64])(void) ( void )

extern

#include <irq.h>

Global Interrupt Vector Table.

Note

This table resides in RAM (if remapped) to allow dynamic registration of ISRs. It is typically indexed by the PLIC Interrupt ID.

Definition at line 20 of file mtrap.c.