[6d6891e] | 1 | /** |
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[d9e0006] | 2 | * @file |
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| 3 | * |
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| 4 | * @brief Intel I386 Interrupt Macros |
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| 5 | * |
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| 6 | * Formerly contained in and extracted from libcpu/i386/cpu.h |
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[6d6891e] | 7 | */ |
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| 8 | |
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[a324355] | 9 | /* |
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| 10 | * COPYRIGHT (c) 1998 valette@crf.canon.fr |
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| 11 | * |
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| 12 | * The license and distribution terms for this file may be |
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| 13 | * found in the file LICENSE in this distribution or at |
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[c499856] | 14 | * http://www.rtems.org/license/LICENSE. |
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[84c53452] | 15 | * |
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[a324355] | 16 | * Applications must not include this file directly. |
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| 17 | */ |
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| 18 | |
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[7f70d1b7] | 19 | #ifndef _RTEMS_SCORE_INTERRUPTS_H |
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| 20 | #define _RTEMS_SCORE_INTERRUPTS_H |
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[a324355] | 21 | |
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| 22 | #ifndef ASM |
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| 23 | |
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| 24 | struct __rtems_raw_irq_connect_data__; |
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| 25 | |
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| 26 | typedef void (*rtems_raw_irq_hdl) (void); |
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| 27 | typedef void (*rtems_raw_irq_enable) (const struct __rtems_raw_irq_connect_data__*); |
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| 28 | typedef void (*rtems_raw_irq_disable) (const struct __rtems_raw_irq_connect_data__*); |
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| 29 | typedef int (*rtems_raw_irq_is_enabled) (const struct __rtems_raw_irq_connect_data__*); |
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| 30 | |
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[d9e0006] | 31 | /** |
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| 32 | * @name Interrupt Level Macros |
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| 33 | * |
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[a324355] | 34 | */ |
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[b697bc6] | 35 | /**@{**/ |
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[7c39cab] | 36 | #if !defined(I386_DISABLE_INLINE_ISR_DISABLE_ENABLE) |
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[a324355] | 37 | #define i386_disable_interrupts( _level ) \ |
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| 38 | { \ |
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[c05f6238] | 39 | __asm__ volatile ( "pushf ; \ |
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[a324355] | 40 | cli ; \ |
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| 41 | pop %0" \ |
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| 42 | : "=rm" ((_level)) \ |
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| 43 | ); \ |
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| 44 | } |
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| 45 | |
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| 46 | #define i386_enable_interrupts( _level ) \ |
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| 47 | { \ |
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[c05f6238] | 48 | __asm__ volatile ( "push %0 ; \ |
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[a324355] | 49 | popf" \ |
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| 50 | : : "rm" ((_level)) : "cc" \ |
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| 51 | ); \ |
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| 52 | } |
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| 53 | |
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| 54 | #define i386_flash_interrupts( _level ) \ |
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| 55 | { \ |
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[c05f6238] | 56 | __asm__ volatile ( "push %0 ; \ |
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[a324355] | 57 | popf ; \ |
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| 58 | cli" \ |
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| 59 | : : "rm" ((_level)) : "cc" \ |
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| 60 | ); \ |
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| 61 | } |
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| 62 | |
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| 63 | #define i386_get_interrupt_level( _level ) \ |
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| 64 | do { \ |
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[e6aeabd] | 65 | register uint32_t _eflags; \ |
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[a324355] | 66 | \ |
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[c05f6238] | 67 | __asm__ volatile ( "pushf ; \ |
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[a324355] | 68 | pop %0" \ |
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| 69 | : "=rm" ((_eflags)) \ |
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| 70 | ); \ |
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| 71 | \ |
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| 72 | _level = (_eflags & EFLAGS_INTR_ENABLE) ? 0 : 1; \ |
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| 73 | } while (0) |
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[3267f95] | 74 | #else |
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| 75 | uint32_t i386_disable_interrupts( void ); |
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| 76 | void i386_enable_interrupts(uint32_t level); |
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| 77 | void i386_flash_interrupts(uint32_t level); |
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| 78 | void i386_set_interrupt_level(uint32_t new_level); |
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| 79 | uint32_t i386_get_interrupt_level( void ); |
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| 80 | #endif /* PARAVIRT */ |
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[a324355] | 81 | |
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[d9e0006] | 82 | /** @} */ |
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| 83 | |
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[a324355] | 84 | #endif |
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| 85 | #endif |
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