usr/src/sys/vax/uba/adreg.h

/*
 * Copyright (c) 1982, 1986 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 *
 *      @(#)adreg.h     7.2 (Berkeley) %G%
 */

struct addevice {
        short int ad_csr;                       /* Control status register */
        short int ad_data;                      /* Data buffer */
};

#define AD_CHAN         ADIOSCHAN
#define AD_READ         ADIOGETW
#define ADIOSCHAN       _IOW('a', 0, int)       /* set channel */
#define ADIOGETW        _IOR('a', 1, int)       /* read one word */

/*
 * Unibus CSR register bits
 */

#define AD_START                01
#define AD_SCHMITT              020
#define AD_CLOCK                040
#define AD_IENABLE              0100
#define AD_DONE                 0200
#define AD_INCENABLE            040000
#define AD_ERROR                0100000