* Copyright (c) 1994 Ludd, University of Lule}, Sweden

/* $NetBSD: mbareg.h,v 1.6 2017/05/22 17:13:09 ragge Exp $ */
/*
* Copyright (c) 1994 Ludd, University of Lule}, Sweden
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/

#ifdef notdef
struct mba_hack {
u_int pad1;
u_int md_ds; /* unit status */
u_int pad4[2];
u_int md_as; /* Attention summary */
u_int pad2;
u_int md_dt; /* unit type */
u_int pad3[25];
};

struct mba_regs {
u_int mba_csr;
u_int mba_cr;
u_int mba_sr;
u_int mba_var;
u_int mba_bc;
u_int mba_dr;
u_int mba_smr;
u_int mba_car;
u_int utrymme[248];
struct mba_hack mba_md[8]; /* unit specific regs */
struct pte mba_map[256];
};
#endif

#define MBA_CSR 0
#define MBA_CR 4
#define MBA_SR 8
#define MBA_VAR 12
#define MBA_BC 16
#define MBA_DR 20
#define MBA_SMR 24
#define MBA_CAR 28

#define MUREG(dev,reg) (1024+(dev)*128+(reg))
#define MAPREG(nr) (2048+(nr)*4)

#define MU_DS 4 /* unit status */
#define MU_AS 16 /* attention summary */
#define MU_DT 24 /* drive type */

/*
* Different states which can be on massbus.
*/
/* Write to mba_cr */
#define MBACR_IBC 0x10
#define MBACR_MMM 0x8
#define MBACR_IE 0x4
#define MBACR_ABORT 0x2
#define MBACR_INIT 0x1

/* Read from mba_sr: */
#define MBASR_DTBUSY 0x80000000
#define MBASR_NRCONF 0x40000000
#define MBASR_CRD 0x20000000
#define MBASR_CBHUNG 0x800000
#define MBASR_PGE 0x80000
#define MBASR_NED 0x40000 /* NonExistent Drive */
#define MBASR_MCPE 0x20000 /* Massbuss Control Parity Error */
#define MBASR_ATTN 0x10000 /* Attention from Massbus */
#define MBASR_SPE 0x4000 /* Silo Parity Error */
#define MBASR_DTCMP 0x2000 /* Data Transfer CoMPleted */
#define MBASR_DTABT 0x1000 /* Data Transfer ABorTed */
#define MBASR_DLT 0x800 /* Data LaTe */
#define MBASR_WCKUE 0x400 /* Write check upper error */
#define MBASR_WCKLE 0x200 /* Write check lower error */
#define MBASR_MXF 0x100 /* Miss transfer fault */
#define MBASR_MBEXC 0x80 /* Massbuss exception */
#define MBASR_MDPE 0x40 /* Massbuss data parity error */
#define MBASR_MAPPE 0x20 /* Page frame map parity error */
#define MBASR_INVMAP 0x10 /* Invalid map */
#define MBASR_ERR_STAT 0x8 /* Error status */
#define MBASR_ERRC 0x4 /* Error confirmation */
#define MBASR_ISTIMO 0x2 /* Interface sequence timeout */
#define MBASR_RDTIMO 0x1 /* Read data timeout status */

/* Definitions in mba_device md_ds */
#define MBADS_DPR 0x100 /* Unit present */

/* Definitions in mba_device md_dt */
#define MBADT_RP04 0x2010
#define MBADT_RP05 0x2011
#define MBADT_RP06 0x2012
#define MBADT_RP07 0x2022
#define MBADT_RM02 0x2015
#define MBADT_RM03 0x2014
#define MBADT_RM05 0x2017
#define MBADT_RM80 0x2016
#define MBADT_DRQ 0x800 /* Dual ported */
#define MBADT_MOH 0x2000 /* Moving head device */