1 /* $NetBSD: wdscreg.h,v 1.2 1996/05/08 05:55:10 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1994 Christian E. Hopps 5 * Copyright (c) 1982, 1990 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)dmareg.h 37 */ 38 #ifndef _MVME68K_DEV_WDSCREG_H_ 39 #define _MVME68K_DEV_WDSCREG_H_ 40 41 #define DMAC_CSR_ENABLE (1 << 0) /* Enable the DMAC */ 42 #define DMAC_CSR_TABLE (1 << 1) /* Select Table Mode */ 43 #define DMAC_CSR_WRITE (1 << 2) /* Write data from RAM to SCSI */ 44 #define DMAC_CSR_TBUSERR (1 << 3) /* Bus error during table walk */ 45 #define DMAC_CSR_DBUSERR (1 << 4) /* Bus error during data xfer */ 46 #define DMAC_CSR_TSIZE (1 << 5) /* Table addr. not in 32 bits */ 47 #define DMAC_CSR_8BITS (1 << 6) /* Non-8 bit handshake */ 48 #define DMAC_CSR_DONE (1 << 7) /* Transfer complete, or error */ 49 50 #define DMAC_SR_HOLDING 0x0f /* Data holding state */ 51 #define DMAC_SR_INCREMENT 0xf0 /* Increment value */ 52 53 #endif 54