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/*
 *  PC-9800 machine types.
 *
 *  Copyright (C) 1999  TAKAI Kosuke <tak@kmc.kyoto-u.ac.jp>
 *                      (Linux/98 Project)
 */


#ifndef _ASM_PC9800_H_
#define _ASM_PC9800_H_

#include <asm/pc9800_sca.h>
#include <asm/types.h>

#define __PC9800SCA(type, pa)   (*(type *) phys_to_virt(pa))
#define __PC9800SCA_TEST_BIT(pa, n)     \
        ((__PC9800SCA(u8, pa) & (1U << (n))) != 0)


#define PC9800_HIGHRESO_P()     __PC9800SCA_TEST_BIT(PC9800SCA_BIOS_FLAG, 3)
#define PC9800_8MHz_P()         __PC9800SCA_TEST_BIT(PC9800SCA_BIOS_FLAG, 7)

                                /* 0x2198 is 98 21 on memory... */
#define PC9800_9821_P()         (__PC9800SCA(u16, PC9821SCA_ROM_ID) == 0x2198)

/* Note PC9821_...() are valid only when PC9800_9821_P() was true. */
#define PC9821_IDEIF_DOUBLE_P() __PC9800SCA_TEST_BIT(PC9821SCA_ROM_FLAG4, 4)

#endif