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