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uba_common.h revision 1.2 
      1 /*	$NetBSD: uba_common.h,v 1.2 1999/06/21 16:23:01 ragge Exp $ */
      2 /*-
      3  * Copyright (c) 1982, 1986 The Regents of the University of California.
      4  * All rights reserved.
      5  * (c) UNIX System Laboratories, Inc.
      6  * All or some portions of this file are derived from material licensed
      7  * to the University of California by American Telephone and Telegraph
      8  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
      9  * the permission of UNIX System Laboratories, Inc.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions and the following disclaimer.
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  * 3. All advertising materials mentioning features or use of this software
     20  *    must display the following acknowledgement:
     21  *	This product includes software developed by the University of
     22  *	California, Berkeley and its contributors.
     23  * 4. Neither the name of the University nor the names of its contributors
     24  *    may be used to endorse or promote products derived from this software
     25  *    without specific prior written permission.
     26  *
     27  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     28  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     29  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     30  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     31  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     32  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     33  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     34  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     35  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     36  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     37  * SUCH DAMAGE.
     38  *
     39  *	@(#)ubareg.h	7.8 (Berkeley) 5/9/91
     40  */
     41 
     42 /*
     43  * VAX-specific parts of the Unibus softc.
     44  */
     45 struct uba_regs;
     46 
     47 struct	uba_vsoftc {
     48 	struct	uba_softc uv_sc;/* Common vars from dev/qbus/ubavar.h */
     49 	struct	vax_bus_dma_tag uv_dmat;
     50 	struct	vax_sgmap uv_sgmap;
     51 	int	uv_size;	/* Size of UBA addressable memory */
     52 	paddr_t uv_addr;	/* Physical address of map registers */
     53 	struct	uba_regs *uv_uba;/* Where applicable */
     54 	int	uh_ibase;
     55 	int	uh_zvtime;
     56 	int	uh_zvtotal;
     57 	int	uh_zvcnt;
     58 };
     59 
     60 /*
     61  * Size of unibus memory address space in pages
     62  * (also number of map registers).
     63  */
     64 #define UBAPAGES	496
     65 #define UBAIOADDR	0760000	 /* start of I/O page */
     66 #define UBAIOPAGES	16
     67 
     68 /*
     69  * DW780/DW750 hardware registers
     70  */
     71 struct uba_regs {
     72 	int	uba_cnfgr;		/* configuration register */
     73 	int	uba_cr;			/* control register */
     74 	int	uba_sr;			/* status register */
     75 	int	uba_dcr;		/* diagnostic control register */
     76 	int	uba_fmer;		/* failed map entry register */
     77 	int	uba_fubar;		/* failed UNIBUS address register */
     78 	int	pad1[2];
     79 	int	uba_brsvr[4];
     80 	int	uba_brrvr[4];		/* receive vector registers */
     81 	int	uba_dpr[16];		/* buffered data path register */
     82 	int	pad2[480];
     83 	struct pte uba_map[UBAPAGES];	/* unibus map register */
     84 	int	pad3[UBAIOPAGES];	/* no maps for device address space */
     85 };
     86 
     87 void	uba_dma_init __P((struct uba_vsoftc *));
     88