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      1 /*	$NetBSD: uba_common.h,v 1.6 2008/11/19 15:39:10 hans 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. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  *
     35  *	@(#)ubareg.h	7.8 (Berkeley) 5/9/91
     36  */
     37 
     38 /*
     39  * VAX-specific parts of the Unibus softc.
     40  */
     41 struct uba_regs;
     42 
     43 struct	uba_vsoftc {
     44 	struct	uba_softc uv_sc;/* Common vars from dev/qbus/ubavar.h */
     45 	struct	vax_bus_dma_tag uv_dmat;
     46 	struct	vax_sgmap uv_sgmap;
     47 	int	uv_size;	/* Size of UBA addressable memory */
     48 	paddr_t uv_addr;	/* Physical address of map registers */
     49 	struct	uba_regs *uv_uba;/* Where applicable */
     50 	int	uh_ibase;
     51 	int	uh_zvtime;
     52 	int	uh_zvtotal;
     53 	int	uh_zvcnt;
     54 };
     55 
     56 /*
     57  * Size of unibus memory address space in pages
     58  * (also number of map registers).
     59  */
     60 #define UBAPAGES	496
     61 #define UBAIOADDR	0760000	 /* start of I/O page */
     62 #define UBAIOPAGES	16
     63 
     64 /*
     65  * DW780/DW750 hardware registers
     66  */
     67 struct uba_regs {
     68 	volatile int	uba_cnfgr;	/* configuration register */
     69 	volatile int	uba_cr;		/* control register */
     70 	volatile int	uba_sr;		/* status register */
     71 	volatile int	uba_dcr;	/* diagnostic control register */
     72 	volatile int	uba_fmer;	/* failed map entry register */
     73 	volatile int	uba_fubar;	/* failed UNIBUS address register */
     74 	int		pad1[2];
     75 	volatile int	uba_brsvr[4];
     76 	volatile int	uba_brrvr[4];	/* receive vector registers */
     77 	volatile int	uba_dpr[16];	/* buffered data path register */
     78 	int		pad2[480];
     79 	struct pte	uba_map[UBAPAGES]; /* unibus map register */
     80 	int		pad3[UBAIOPAGES]; /* no maps for device address space */
     81 };
     82 
     83 void	uba_dma_init(struct uba_vsoftc *);
     84