root/sys/arch/mac68k/dev/sbcreg.h
/*      $NetBSD: sbcreg.h,v 1.2 1997/03/01 20:18:59 scottr Exp $        */

/*
 * Register map for the Mac II SCSI Interface (sbc)
 * This register map is for the SYM/NCR5380 SCSI Bus Interface
 * Controller (SBIC), with the wonderful 16 bytes/register layout
 * that Macs have.
 */

/*
 * Am5380 Register map (with padding)
 */
typedef union {
        volatile u_char sci_reg;
        volatile u_char pad[16];
} ncr5380_padded_reg_t;

struct sbc_regs {
        ncr5380_padded_reg_t sci_pr0;
        ncr5380_padded_reg_t sci_pr1;
        ncr5380_padded_reg_t sci_pr2;
        ncr5380_padded_reg_t sci_pr3;
        ncr5380_padded_reg_t sci_pr4;
        ncr5380_padded_reg_t sci_pr5;
        ncr5380_padded_reg_t sci_pr6;
        ncr5380_padded_reg_t sci_pr7;
};