interrupt_sam_nvic.h File Reference

Global interrupt management for SAM D20, SAM3 and SAM4 (NVIC based)

Copyright (c) 2012-2018 Microchip Technology Inc. and its subsidiaries.

#include <compiler.h>
#include <parts.h>

Macros
#define	Disable_global_interrupt()   cpu_irq_disable()
#define	Enable_global_interrupt()   cpu_irq_enable()
#define	Is_global_interrupt_enabled()   cpu_irq_is_enabled()
Interrupt Service Routine definition
#define	ISR(func)   void func (void)
	Define service routine. More...
#define	irq_initialize_vectors()
	Initialize interrupt vectors. More...
#define	irq_register_handler(int_num, int_prio)
	Register handler for interrupt. More...

Functions
void	cpu_irq_enter_critical (void)
void	cpu_irq_leave_critical (void)

Variables
static volatile uint32_t	cpu_irq_critical_section_counter
static volatile bool	cpu_irq_prev_interrupt_state

Global interrupt flags
#define	cpu_irq_enable()
	Enable interrupts globally. More...
#define	cpu_irq_disable()
	Disable interrupts globally. More...
#define	cpu_irq_is_enabled()   (__get_PRIMASK() == 0)
	Check if interrupts are globally enabled. More...
typedef uint32_t	irqflags_t
	Type used for holding state of interrupt flag. More...
static irqflags_t	cpu_irq_save (void)
	Get and clear the global interrupt flags. More...
static bool	cpu_irq_is_enabled_flags (irqflags_t flags)
	Check if interrupts are globally enabled in supplied flags. More...
static void	cpu_irq_restore (irqflags_t flags)
	Restore global interrupt flags. More...