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/* $NetBSD: nexus.h,v 1.5 1995/11/12 14:37:22 ragge Exp $ */
/*-
* Copyright (c) 1982, 1986 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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.
*
* @(#)nexus.h 7.3 (Berkeley) 5/9/91
*/
/*
* Information about nexus's.
*
* Each machine has an address of backplane slots (nexi).
* Each nexus is some type of adapter, whose code is the low
* byte of the first word of the adapter address space.
* At boot time the system looks through the array of available
* slots and finds the interconnects for the machine.
*/
#define IO_CMI750 2
#define MAXNMCR 1
#define NNEXSBI 16
#if VAX8600
#define NNEX8600 NNEXSBI
#define NEXA8600 ((struct nexus *)(0x20000000))
#define NEXB8600 ((struct nexus *)(0x22000000))
#endif
#if VAX780
#define NNEX780 NNEXSBI
#define NEX780 ((struct nexus *)0x20000000)
#endif
#if VAX730
#define NNEX730 NNEXSBI
#define NEX730 ((struct nexus *)0xf20000)
#endif
#if VAX630
#define NNEX630 1
#define NEX630 ((struct nexus *)0x20088000)
#endif
#define NEXSIZE 0x2000
#if VAX8600
#define MAXNNEXUS (2 * NNEXSBI)
#else
#define MAXNNEXUS NNEXSBI
#endif
#ifndef ASSEMBLER
#include "sys/types.h"
struct nexus {
union nexcsr {
long nex_csr;
u_char nex_type;
} nexcsr;
long nex_pad[NEXSIZE / sizeof (long) - 1];
};
struct sbi_attach_args {
u_int nexnum; /* This nexus TR number */
u_int type; /* This nexus type */
int nexinfo; /* Some info sent between attach & match */
void *nexaddr; /* Virtual address of this nexus */
};
struct iobus {
int io_type;
int io_addr;
int io_size;
int io_details;
};
struct nexusconnect {
int psb_nnexus;
struct nexus *psb_nexbase;
int psb_ubatype;
int psb_nubabdp;
caddr_t *psb_umaddr;
int *psb_nextype;
};
extern caddr_t *nex_vec;
#define nex_vec_num(ipl, nexnum) nex_vec[(ipl-14)*16+nexnum]
#endif
/*
* Bits in high word of nexus's.
*/
#define SBI_PARFLT (1<<31) /* sbi parity fault */
#define SBI_WSQFLT (1<<30) /* write sequence fault */
#define SBI_URDFLT (1<<29) /* unexpected read data fault */
#define SBI_ISQFLT (1<<28) /* interlock sequence fault */
#define SBI_MXTFLT (1<<27) /* multiple transmitter fault */
#define SBI_XMTFLT (1<<26) /* transmit fault */
#define NEX_CFGFLT (0xfc000000)
#ifndef LOCORE
#if defined(VAX780) || defined(VAX8600)
#define NEXFLT_BITS \
"\20\40PARFLT\37WSQFLT\36URDFLT\35ISQFLT\34MXTFLT\33XMTFLT"
#endif
#endif
#define NEX_APD (1<<23) /* adaptor power down */
#define NEX_APU (1<<22) /* adaptor power up */
#define MBA_OT (1<<21) /* overtemperature */
#define UBA_UBINIT (1<<18) /* unibus init */
#define UBA_UBPDN (1<<17) /* unibus power down */
#define UBA_UBIC (1<<16) /* unibus initialization complete */
/*
* Types for nex_type.
*/
#define NEX_ANY 0 /* pseudo for handling 11/750 */
#define NEX_MEM4 0x08 /* 4K chips, non-interleaved mem */
#define NEX_MEM4I 0x09 /* 4K chips, interleaved mem */
#define NEX_MEM16 0x10 /* 16K chips, non-interleaved mem */
#define NEX_MEM16I 0x11 /* 16K chips, interleaved mem */
#define NEX_MBA 0x20 /* Massbus adaptor */
#define NEX_UBA0 0x28 /* Unibus adaptor */
#define NEX_UBA1 0x29 /* 4 flavours for 4 addr spaces */
#define NEX_UBA2 0x2a
#define NEX_UBA3 0x2b
#define NEX_DR32 0x30 /* DR32 user i'face to SBI */
#define NEX_CI 0x38 /* CI adaptor */
#define NEX_MPM0 0x40 /* Multi-port mem */
#define NEX_MPM1 0x41 /* Who knows why 4 different ones ? */
#define NEX_MPM2 0x42
#define NEX_MPM3 0x43
#define NEX_MEM64L 0x68 /* 64K chips, non-interleaved, lower */
#define NEX_MEM64LI 0x69 /* 64K chips, ext-interleaved, lower */
#define NEX_MEM64U 0x6a /* 64K chips, non-interleaved, upper */
#define NEX_MEM64UI 0x6b /* 64K chips, ext-interleaved, upper */
#define NEX_MEM64I 0x6c /* 64K chips, interleaved */
#define NEX_MEM256L 0x70 /* 256K chips, non-interleaved, lower */
#define NEX_MEM256LI 0x71 /* 256K chips, ext-interleaved, lower */
#define NEX_MEM256U 0x72 /* 256K chips, non-interleaved, upper */
#define NEX_MEM256UI 0x73 /* 256K chips, ext-interleaved, upper */
#define NEX_MEM256I 0x74 /* 256K chips, interleaved */
#ifndef ASSEMBLER
struct nexus *nexus;
#endif
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