/*      $NetBSD: ctreg.h,v 1.11 2021/07/05 14:51:23 tsutsui Exp $       */

/*
 * Copyright (c) 1982, 1990, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)ctreg.h     8.1 (Berkeley) 6/10/93
 */

struct  ct_iocmd {
        char    unit;
        char    saddr;
        short   addr0;
        long    addr;
        char    nop2;
        char    slen;
        long    len;
        char    nop3;
        char    cmd;
};

struct  ct_rscmd {
        char    unit;
        char    cmd;
};

struct  ct_stat {
        char    c_vu;
        char    c_pend;
        short   c_ref;
        short   c_fef;
        short   c_aef;
        short   c_ief;
        short   c_blk0;
        long    c_blk;
        char    c_pad[4];
};

struct  ct_ssmcmd {
        char    unit;
        char    cmd;
        short   refm;
        short   fefm;
        short   aefm;
        short   iefm;
};

struct  ct_srcmd {
        char    unit;
        char    nop;
        char    cmd;
        char    param;
};

struct  ct_soptcmd {
        char    unit;
        char    nop;
        char    cmd;
        char    opt;
};

struct  ct_ulcmd {
        char    unit;
        char    cmd;
};

struct  ct_wfmcmd {
        char    unit;
        char    cmd;
};

struct  ct_clearcmd {
        char    unit;
        char    cmd;
};

#define CT7946ID        0x220
#define CT9145ID        0x268
#define CT9144ID        0x260
#define CT9144          0
#define CT7912PID       0x209
#define CT7914PID       0x20B
#define CT88140         1
#define CT35401ID       0x270

/* convert bytes to 1k tape block and back */
#define CTBTOK(x)       ((x) >> 10)
#define CTKTOB(x)       ((x) << 10)

#define CTCTLR          15

#define REF_MASK        0x0
#define FEF_MASK        0x0
#define AEF_MASK        0x0
#define IEF_MASK        0xF970

#define FEF_PF          0x0002
#define FEF_REXMT       0x0001
#define AEF_EOF         0x0010
#define AEF_EOV         0x0008

#define C_READ          0x00
#define C_WRITE         0x02
#define C_CLEAR         0x08
#define C_STATUS        0x0d
#define C_SADDR         0x10
#define C_SLEN          0x18
#define C_SUNIT(x)      (0x20 | (x))
#define C_SVOL(x)       (0x40 | (x))
#define C_NOP           0x34
#define C_DESC          0x35
#define C_SOPT          0x38
#define C_SREL          0x3b
#define C_SSM           0x3e
#define C_WFM           0x49
#define C_UNLOAD        0x4a
#define C_REL           0xc0

#define C_CMD           0x05
#define C_EXEC          0x0e
#define C_QSTAT         0x10
#define C_TCMD          0x12

#define C_CC            1
#define C_SKSPAR        2
#define C_OPT           4
#define C_SPAR          4
#define C_IMRPT         8