ics2101reg.h

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    1 /* $NetBSD: ics2101reg.h,v 1.7 2008/04/28 20:23:50 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 /*
   33  * Register defs for Integrated Circuit Systems, Inc. ICS-2101 mixer
   34  * chip, used on Gravis UltraSound cards.
   35  *
   36  * Block diagram:
   37  *                                  port #
   38  *                                      0 +----+
   39  *   Mic in (Right/Left)        -->--->---|    |
   40  *                                      1 |    |          amp --->---- amp out
   41  *   Line in (Right/Left)       -->--->---|    |           |
   42  *                                      2 |    |           |
   43  *   CD in (Right/Left)         -->--->---|    |--->---+---+----->---- line out
   44  *                                      3 |    |       |
   45  *   GF1 Out (Right/Left)       -->--->---|    |       |
   46  *                                      4 |    |       |
   47  *   Unused (Right/Left)        -->--->---|    |       |
   48  *                                        +----+       v
   49  *                                      ICS 2101       |
   50  *                                                     |
   51  *              To GF1 Sample Input ---<---------------+
   52  *
   53  *  Master output volume: mixer channel #5
   54  */
   55 
   56 /*
   57  * ICS Mixer registers
   58  */
   59 
   60 #define ICSMIX_CTRL_LEFT        0x00            /* Control left channel */
   61 #define ICSMIX_CTRL_RIGHT       0x01            /* Control right channel */
   62 #define ICSMIX_ATTN_LEFT        0x02            /* Attenuate left channel */
   63 #define ICSMIX_ATTN_RIGHT       0x03            /* Attenutate right channel */
   64 #define ICSMIX_PAEN             0x04            /* Panning control */
   65 #define ICSMIX_CHAN_0           0               /* Values for mixer channels */
   66 #define ICSMIX_CHAN_1           1
   67 #define ICSMIX_CHAN_2           2
   68 #define ICSMIX_CHAN_3           3
   69 #define ICSMIX_CHAN_4           4
   70 #define ICSMIX_CHAN_5           5
   71 
   72 #define ICSMIX_MIN_ATTN         0x7f
   73 #define ICSMIX_MAX_ATTN         0x00
   74 /*
   75  * The ICS mixer is write-only--it cannot be queried for current settings.
   76  * Drivers must keep track of current values themselves.
   77  */

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FreeBSD/Linux Kernel Cross Reference sys/dev/ic/ics2101reg.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/ics2101reg.h