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/**
* @file
*
* @brief Intel I386 Interrupt Macros
*
* Formerly contained in and extracted from libcpu/i386/cpu.h
*/
/*
* COPYRIGHT (c) 1998 valette@crf.canon.fr
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*
* Applications must not include this file directly.
*/
#ifndef _RTEMS_SCORE_INTERRUPTS_H
#define _RTEMS_SCORE_INTERRUPTS_H
#ifndef ASM
struct __rtems_raw_irq_connect_data__;
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__*);
/**
* @name Interrupt Level Macros
*
*/
/**@{**/
#if !defined(RTEMS_PARAVIRT)
#define i386_disable_interrupts( _level ) \
{ \
__asm__ volatile ( "pushf ; \
cli ; \
pop %0" \
: "=rm" ((_level)) \
); \
}
#define i386_enable_interrupts( _level ) \
{ \
__asm__ volatile ( "push %0 ; \
popf" \
: : "rm" ((_level)) : "cc" \
); \
}
#define i386_flash_interrupts( _level ) \
{ \
__asm__ volatile ( "push %0 ; \
popf ; \
cli" \
: : "rm" ((_level)) : "cc" \
); \
}
#define i386_get_interrupt_level( _level ) \
do { \
register uint32_t _eflags; \
\
__asm__ volatile ( "pushf ; \
pop %0" \
: "=rm" ((_eflags)) \
); \
\
_level = (_eflags & EFLAGS_INTR_ENABLE) ? 0 : 1; \
} while (0)
#else
uint32_t i386_disable_interrupts( void );
void i386_enable_interrupts(uint32_t level);
void i386_flash_interrupts(uint32_t level);
void i386_set_interrupt_level(uint32_t new_level);
uint32_t i386_get_interrupt_level( void );
#endif /* PARAVIRT */
/** @} */
#endif
#endif
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