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-rw-r--r--include/rtems/score/interrupts.h81
1 files changed, 81 insertions, 0 deletions
diff --git a/include/rtems/score/interrupts.h b/include/rtems/score/interrupts.h
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+++ b/include/rtems/score/interrupts.h
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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
+ *
+ */
+/**@{**/
+
+#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)
+
+#define _CPU_ISR_Disable( _level ) i386_disable_interrupts( _level )
+#define _CPU_ISR_Enable( _level ) i386_enable_interrupts( _level )
+
+/** @} */
+
+#endif
+#endif