Processor Dependent Interrupt Management

i386 Interrupt Management More...

Typedefs
typedef void(*	rtems_raw_irq_hdl) (void)
typedef void(*	rtems_raw_irq_enable) (const struct __rtems_raw_irq_connect_data__ *)
typedef void(*	rtems_raw_irq_disable) (const struct __rtems_raw_irq_connect_data__ *)
typedef int(*	rtems_raw_irq_is_enabled) (const struct __rtems_raw_irq_connect_data__ *)

Interrupt Level Macros
#define	i386_disable_interrupts(_level)
#define	i386_enable_interrupts(_level)
#define	i386_flash_interrupts(_level)
#define	i386_get_interrupt_level(_level)

Detailed Description

i386 Interrupt Management

Macro Definition Documentation

i386_disable_interrupts

#define i386_disable_interrupts

(

_level

)

Value:

  { \
    __asm__ volatile ( "pushf ; \                    cli ; \                    pop %0" \
                   : "=rm" ((_level)) \
    ); \
  }

i386_enable_interrupts

#define i386_enable_interrupts

(

_level

)

Value:

  { \
    __asm__ volatile ( "push %0 ; \                    popf" \
                    : : "rm" ((_level)) : "cc" \
    ); \
  }

i386_flash_interrupts

#define i386_flash_interrupts

(

_level

)

Value:

  { \
    __asm__ volatile ( "push %0 ; \                    popf ; \                    cli" \
                    : : "rm" ((_level)) : "cc" \
    ); \
  }

i386_get_interrupt_level

#define i386_get_interrupt_level

(

_level

)

Value:

  do { \
    uint32_t   _eflags; \
    \
    __asm__ volatile ( "pushf ; \                    pop %0" \
                    : "=rm" ((_eflags)) \
    ); \
    \
    _level = (_eflags & EFLAGS_INTR_ENABLE) ? 0 : 1; \
  } while (0)