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      1 /* $NetBSD: ics2101var.h,v 1.9 2008/04/28 20:23:52 martin Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1996 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Ken Hornstein and John Kohl.
      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  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #define ICSMIX_LEFT		0		/* Value for left channel */
     33 #define ICSMIX_RIGHT		1		/* Value for right channel */
     34 
     35 struct ics2101_softc {
     36 	bus_space_tag_t sc_iot;		/* tag */
     37 	bus_space_handle_t sc_selio_ioh;
     38 	bus_space_handle_t sc_dataio_ioh;
     39 	u_short sc_selio;		/* select I/O address */
     40 	u_short sc_dataio;		/* data I/O address */
     41 	int sc_flags;			/* Various flags */
     42 #define ICS_FLIP	0x01		/* flip channels */
     43 	u_char sc_setting[ICSMIX_CHAN_5+1][2]; /* current settings */
     44 	u_char sc_mute[ICSMIX_CHAN_5+1][2];/* muted? */
     45 };
     46 
     47 void ics2101_mix_attenuate(struct ics2101_softc *, u_int, u_int, u_int);
     48 void ics2101_mix_mute(struct ics2101_softc *, u_int, u_int, u_int);
     49