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cs4231var.h revision 1.1 
      1 /*	$NetBSD: cs4231var.h,v 1.1 1999/06/05 14:29:10 mrg Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Paul Kranenburg.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*
     40  * Software state, per CS4231 audio chip.
     41  */
     42 struct cs4231_softc {
     43 	struct ad1848_softc sc_ad1848;	/* base device */
     44 	/* XXX */
     45 	struct sbusdev	sc_sd;		/* sbus device */
     46 	bus_space_tag_t	sc_bustag;
     47 	bus_dma_tag_t	sc_dmatag;
     48 	struct evcnt	sc_intrcnt;	/* statistics */
     49 
     50 	struct cs_dma	*sc_dmas;
     51 	struct cs_dma	*sc_nowplaying;	/*XXX*/
     52 	u_long		sc_playsegsz;	/*XXX*/
     53 	u_long		sc_playcnt;
     54 	u_long		sc_blksz;
     55 
     56 	int	sc_open;		/* single use device */
     57 	int	sc_locked;		/* true when transfering data */
     58 	struct	apc_dma	*sc_dmareg;	/* DMA registers */
     59 
     60 	/* interfacing with the interrupt handlers */
     61 	void	(*sc_rintr)(void*);	/* input completion intr handler */
     62 	void	*sc_rarg;		/* arg for sc_rintr() */
     63 	void	(*sc_pintr)(void*);	/* output completion intr handler */
     64 	void	*sc_parg;		/* arg for sc_pintr() */
     65 };
     66 
     67 void	cs4231_init __P((struct cs4231_softc *));
     68 int	cs4231_read __P((struct ad1848_softc *, int));
     69 void	cs4231_write __P((struct ad1848_softc *, int, int));
     70 int	cs4231_intr __P((void *));
     71 extern	struct audio_hw_if audiocs_hw_if;
     72