/** * @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