/*	$OpenBSD: dmareg.h,v 1.1 2013/10/23 10:07:14 miod Exp $	*/

/*
 * Copyright (c) 2013 Miodrag Vallat.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

/*
 * AV400 family DMA controller definitions
 */

#define	DMA_BOUNDARY	0x1000

#define	DMA_MAP		0xfff8b000
#define	DMAMAP_MASK		0xfffff000
#define	DMAMAP_G		0x00000080
#define	DMAMAP_RO		0x00000004
#define	DMAMAP_V		0x00000001
#define	DMA_OFF		0xfff8b004
#define	DMAOFF_MASK		0x00000ffe
#define	DMA_COUNT	0xfff8b008
#define	DMACOUNTC_MASK		0x00001ffe
#define	DMA_DIR		0xfff8b00c
#define	DMA_CLR_INVALID	0xfff8b010
#define	DMA_CLR_WP	0xfff8b014
#define	DMACLR			0x00000000
#define	DMA_STOP	0xfff8b018
#define	DMASTOP_RESTART		0x00000000	/* restart DMA */
#define	DMASTOP_INHIBIT		0x00000001	/* do not restart DMA */