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[/] [or1k/] [trunk/] [rtems-20020807/] [c/] [src/] [lib/] [libbsp/] [i386/] [shared/] [irq/] [irq_asm.h] - Rev 1765
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/* irq_asm.h * * This include file has defines to represent some contant used * to program and manage the Intel 8259 interrupt controller * * * COPYRIGHT (c) 1998 valette@crf.canon.fr * * The license and distribution terms for this file may be * found in found in the file LICENSE in this distribution or at * http://www.OARcorp.com/rtems/license.html. * * irq_asm.h,v 1.2 1998/10/05 22:36:06 joel Exp */ #ifndef __IRQ_ASM_H__ #define __IRQ_ASM_H__ #define BSP_ASM_IRQ_VECTOR_BASE 0x20 /* PIC's command and mask registers */ #define PIC_MASTER_COMMAND_IO_PORT 0x20 /* Master PIC command register */ #define PIC_SLAVE_COMMAND_IO_PORT 0xa0 /* Slave PIC command register */ #define PIC_MASTER_IMR_IO_PORT 0x21 /* Master PIC Interrupt Mask Register */ #define PIC_SLAVE_IMR_IO_PORT 0xa1 /* Slave PIC Interrupt Mask Register */ /* Command for specific EOI (End Of Interrupt): Interrupt acknowledge */ #define PIC_EOSI 0x60 /* End of Specific Interrupt (EOSI) */ #define PIC_EOI 0x20 /* Generic End of Interrupt (EOI) */ #endif