ics2101reg.h

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    1 /* $OpenBSD: ics2101reg.h,v 1.3 2008/06/26 05:42:15 ray Exp $ */
    2 /* $NetBSD: ics2101reg.h,v 1.3 1996/02/05 02:18:52 jtc Exp $ */
    3 
    4 /*-
    5  * Copyright (c) 1996 The NetBSD Foundation, Inc.
    6  * All rights reserved.
    7  *
    8  * This code is derived from software contributed to The NetBSD Foundation
    9  * by Ken Hornstein and John Kohl.
   10  *
   11  * Redistribution and use in source and binary forms, with or without
   12  * modification, are permitted provided that the following conditions
   13  * are met:
   14  * 1. Redistributions of source code must retain the above copyright
   15  *    notice, this list of conditions and the following disclaimer.
   16  * 2. Redistributions in binary form must reproduce the above copyright
   17  *    notice, this list of conditions and the following disclaimer in the
   18  *    documentation and/or other materials provided with the distribution.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
   24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   30  * POSSIBILITY OF SUCH DAMAGE.
   31  */
   32 
   33 /*
   34  * Register defs for Integrated Circuit Systems, Inc. ICS-2101 mixer
   35  * chip, used on Gravis UltraSound cards.
   36  *
   37  * Block diagram:
   38  *                                  port #
   39  *                                      0 +----+
   40  *   Mic in (Right/Left)        -->--->---|    |
   41  *                                      1 |    |          amp --->---- amp out
   42  *   Line in (Right/Left)       -->--->---|    |           |
   43  *                                      2 |    |           |
   44  *   CD in (Right/Left)         -->--->---|    |--->---+---+----->---- line out
   45  *                                      3 |    |       |
   46  *   GF1 Out (Right/Left)       -->--->---|    |       |
   47  *                                      4 |    |       |
   48  *   Unused (Right/Left)        -->--->---|    |       |
   49  *                                        +----+       v
   50  *                                      ICS 2101       |
   51  *                                                     |
   52  *              To GF1 Sample Input ---<---------------+
   53  *
   54  *  Master output volume: mixer channel #5
   55  */
   56 
   57 /*
   58  * ICS Mixer registers
   59  */
   60 
   61 #define ICSMIX_CTRL_LEFT        0x00            /* Control left channel */
   62 #define ICSMIX_CTRL_RIGHT       0x01            /* Control right channel */
   63 #define ICSMIX_ATTN_LEFT        0x02            /* Attenuate left channel */
   64 #define ICSMIX_ATTN_RIGHT       0x03            /* Attenutate right channel */
   65 #define ICSMIX_PAEN             0x04            /* Panning control */
   66 #define ICSMIX_CHAN_0           0               /* Values for mixer channels */
   67 #define ICSMIX_CHAN_1           1
   68 #define ICSMIX_CHAN_2           2
   69 #define ICSMIX_CHAN_3           3
   70 #define ICSMIX_CHAN_4           4
   71 #define ICSMIX_CHAN_5           5
   72 
   73 #define ICSMIX_MIN_ATTN         0x7f
   74 #define ICSMIX_MAX_ATTN         0x00
   75 /*
   76  * The ICS mixer is write-only--it cannot be queried for current settings.
   77  * Drivers must keep track of current values themselves.
   78  */

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

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