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dmac_0448.h revision 1.3 
      1 /*	$NetBSD: dmac_0448.h,v 1.3 2002/05/31 21:19:03 thorpej Exp $	*/
      2 /*
      3  * Copyright (c) 1992, 1993
      4  *	The Regents of the University of California.  All rights reserved.
      5  *
      6  * This code is derived from software contributed to Berkeley by
      7  * Sony Corp. and Kazumasa Utashiro of Software Research Associates, Inc.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *	This product includes software developed by the University of
     20  *	California, Berkeley and its contributors.
     21  * 4. Neither the name of the University nor the names of its contributors
     22  *    may be used to endorse or promote products derived from this software
     23  *    without specific prior written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     35  * SUCH DAMAGE.
     36  *
     37  * from: $Hdr: dmac_0448.h,v 4.300 91/06/09 06:21:36 root Rel41 $ SONY
     38  *
     39  *	@(#)dmac_0448.h	8.1 (Berkeley) 6/11/93
     40  */
     41 
     42 /*
     43  * Copyright (c) 1989- by SONY Corporation.
     44  */
     45 /*
     46  *	dmac_0448.h
     47  *		DMAC L7A0448
     48  */
     49 
     50 /*	dmac register base address	*/
     51 #define DMAC_BASE		0xbfe00000
     52 
     53 /*	register definition	*/
     54 #define DMAC_GSTAT		(DMAC_BASE + 0xf)
     55 #define DMAC_GSEL		(DMAC_BASE + 0xe)
     56 
     57 #define DMAC_CSTAT		(DMAC_BASE + 0x2)
     58 #define DMAC_CCTL		(DMAC_BASE + 0x3)
     59 #define DMAC_CTRCL		(DMAC_BASE + 0x4)
     60 #define DMAC_CTRCM		(DMAC_BASE + 0x5)
     61 #define DMAC_CTRCH		(DMAC_BASE + 0x6)
     62 #define DMAC_CTAG		(DMAC_BASE + 0x7)
     63 #define DMAC_CWID		(DMAC_BASE + 0x8)
     64 #define DMAC_COFSL		(DMAC_BASE + 0x9)
     65 #define DMAC_COFSH		(DMAC_BASE + 0xa)
     66 #define DMAC_CMAP		(DMAC_BASE + 0xc)
     67 #define DMAC_CMAPH		(DMAC_BASE + 0xc)
     68 #define DMAC_CMAPL		(DMAC_BASE + 0xd)
     69 
     70 #ifdef __mips__
     71 #define	VOLATILE	volatile
     72 #else
     73 #define	VOLATILE
     74 #endif
     75 
     76 #ifndef U_CHAR
     77 #define U_CHAR	unsigned VOLATILE char
     78 #endif
     79 
     80 #ifndef U_SHORT
     81 #define U_SHORT	unsigned VOLATILE short
     82 #endif
     83 
     84 #define dmac_gstat		*(U_CHAR *)DMAC_GSTAT
     85 #define dmac_gsel		*(U_CHAR *)DMAC_GSEL
     86 
     87 #define dmac_cstat		*(U_CHAR *)DMAC_CSTAT
     88 #define dmac_cctl		*(U_CHAR *)DMAC_CCTL
     89 #define dmac_ctrcl		*(U_CHAR *)DMAC_CTRCL
     90 #define dmac_ctrcm		*(U_CHAR *)DMAC_CTRCM
     91 #define dmac_ctrch		*(U_CHAR *)DMAC_CTRCH
     92 #define dmac_ctag		*(U_CHAR *)DMAC_CTAG
     93 #define dmac_cwid		*(U_CHAR *)DMAC_CWID
     94 #define dmac_cofsl		*(U_CHAR *)DMAC_COFSL
     95 #define dmac_cofsh		*(U_CHAR *)DMAC_COFSH
     96 #define dmac_cmap		*(U_SHORT *)DMAC_CMAP
     97 #define dmac_cmaph		*(U_CHAR *)DMAC_CMAPH
     98 #define dmac_cmapl		*(U_CHAR *)DMAC_CMAPL
     99 
    100 /*	status/control bit definition	*/
    101 #define	DM_TCZ			0x80
    102 #define	DM_A28			0x40
    103 #define	DM_AFIX			0x20
    104 #define	DM_APAD			0x10
    105 #define	DM_ZINTEN		0x8
    106 #define	DM_RST			0x4
    107 #define	DM_MODE			0x2
    108 #define DM_ENABLE		1
    109 
    110 /*	general status bit definition	*/
    111 #define CH_INT(x)		(u_char)(1 << (2 * x))
    112 #define CH0_INT			1
    113 #define CH1_INT			4
    114 #define CH2_INT			0x10
    115 #define CH3_INT			0x40
    116 
    117 #define CH_MRQ(x)		(u_char)(1 << (2 * x + 1))
    118 #define CH0_MRQ			2
    119 #define CH1_MRQ			8
    120 #define CH2_MRQ			0x20
    121 #define CH3_MRQ			0x80
    122 
    123 /*	channel definition	*/
    124 #define	CH_SCSI			0
    125 #define	CH_FDC			1
    126 #define	CH_AUDIO		2
    127 #define	CH_VIDEO		3
    128 
    129 /*	dma status		*/
    130 
    131 	struct	dm_stat {
    132 		unsigned int dm_gstat;
    133 		unsigned int dm_cstat;
    134 		unsigned int dm_cctl;
    135 		unsigned int dm_tcnt;
    136 		unsigned int dm_offset;
    137 		unsigned int dm_tag;
    138 		unsigned int dm_width;
    139 	} ;
    140 
    141 #define	DMAC_WAIT	nops(10)
    142 
    143 #define PINTEN		0xbfc80001
    144 # define	DMA_INTEN	0x10
    145 #define PINTSTAT	0xbfc80003
    146