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/**
* @file
* @ingroup i386_irq
* @brief
*/
/* 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 the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifndef __IRQ_ASM_H__
#define __IRQ_ASM_H__
#define BSP_ASM_IRQ_VECTOR_BASE 0x20
/** @brief 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
/** @brief 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
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