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      1 /*	$NetBSD: dcureg.h,v 1.1.1.1 1999/09/16 12:23:32 takemura Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1999 SATO Kazumi. All rights reserved.
      5  * Copyright (c) 1999 PocketBSD Project. All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the PocketBSD project
     18  *	and its contributors.
     19  * 4. Neither the name of the project 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  */
     36 
     37 /*
     38  *	DCU (DMA Control UNIT) Registers.
     39  *		start 0x0B000040
     40  */
     41 #define	DMARST_REG_W		0x000		/* DMA Reset Register */
     42 #define		DMARST			(1)		/* DMA reset */
     43 
     44 #define	DMAIDLE_REG_W		0x002		/* DMA Idle Register */
     45 #define		DMAISTAT		(1)		/* DMA Idle Status */
     46 #define		DMAIDLE			(1)		/* DMA Idle */
     47 #define		DMABUSY			(0)		/* DMA Busy */
     48 
     49 
     50 #define	DMASEN_REG_W		0x004		/* DMA Sequencer Enable Register */
     51 #define		DMASENMASK		(1)		/* DMA Seq Enable */
     52 #define		DMASEN			(1)		/* DMA Seq Enable */
     53 #define		DMASDS			(0)		/* DMA Seq Disable */
     54 
     55 
     56 #define	DMAMSK_REG_W		0x006		/* DMA Mask Register */
     57 #define		DMAMSKAIN		(1<<3)	/* Audio IN  DMA Enable */
     58 #define		DMAMSKAOUT		(1<<2)	/* Audio OUT  DMA Enable */
     59 #define		DMAMSKFOUT		(1)	/* FIR DMA Enable  */
     60 
     61 
     62 #define	DMAREQ_REG_W		0x008		/* DMA Request Register */
     63 #define		DMAREQAIN		(1<<3)		/* Audio IN Request pending */
     64 #define		DMAREQAOUT		(1<<2)		/* Audio OUT Request pending */
     65 #define		DMAREQFOUT		(1)		/* FIR Request pending */
     66 
     67 
     68 #define	DMATD_REG_W		0x00A		/* DMA Transfer Direction Register */
     69 #define		DMATDMASK		(1)		/* DMA transfer direction (FIR) */
     70 #define		DMATDIOMEM		(1)		/* I/O -> MEM */
     71 #define		DMATDMEMIO		(0)		/* MEM -> I/O */
     72 
     73 /* END dcureg.h */
     74