sys/dev/isa/ics2101var.h

   1 /* $NetBSD: ics2101var.h,v 1.8 2005/12/11 12:22:02 christos 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);