From a324355fb87d556edac0fee0138eb393767c5f98 Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Fri, 12 Apr 2002 15:08:13 +0000 Subject: 2002-03-29 Ralf Corsepius * rtems/score/idtr.h: New file, extracted from libcpu/cpu.h. * rtems/score/interrupts.h: New file, extracted from libcpu/cpu.h. * rtems/score/registers.h: New file, moved from libcpu. * Makefile.am: Reflect changes above. * cpu.c: Don't include cpuModel.h, #include , #include , #include . * rtems/score/cpu.h: Don't include libcpu/cpu.h. #include , #include . --- cpukit/score/cpu/i386/rtems/score/interrupts.h | 75 ++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 cpukit/score/cpu/i386/rtems/score/interrupts.h (limited to 'cpukit/score/cpu/i386/rtems/score/interrupts.h') diff --git a/cpukit/score/cpu/i386/rtems/score/interrupts.h b/cpukit/score/cpu/i386/rtems/score/interrupts.h new file mode 100644 index 0000000000..bcc1dfb85a --- /dev/null +++ b/cpukit/score/cpu/i386/rtems/score/interrupts.h @@ -0,0 +1,75 @@ +/* + * 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.OARcorp.com/rtems/license.html. + * + * $Id$ + * + * 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__*); + +/* + * 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 unsigned32 _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 -- cgit v1.2.3