Annotation of sys/dev/ic/ics2101reg.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: ics2101reg.h,v 1.2 1996/03/05 08:28:07 niklas 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: * 3. All advertising materials mentioning features or use of this software
! 20: * must display the following acknowledgement:
! 21: * This product includes software developed by the NetBSD
! 22: * Foundation, Inc. and its contributors.
! 23: * 4. Neither the name of The NetBSD Foundation nor the names of its
! 24: * contributors may be used to endorse or promote products derived
! 25: * from this software without specific prior written permission.
! 26: *
! 27: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
! 28: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
! 29: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
! 30: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
! 31: * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! 32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! 33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! 34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! 35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! 36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! 37: * POSSIBILITY OF SUCH DAMAGE.
! 38: */
! 39:
! 40: /*
! 41: * Register defs for Integrated Circuit Systems, Inc. ICS-2101 mixer
! 42: * chip, used on Gravis UltraSound cards.
! 43: *
! 44: * Block diagram:
! 45: * port #
! 46: * 0 +----+
! 47: * Mic in (Right/Left) -->--->---| |
! 48: * 1 | | amp --->---- amp out
! 49: * Line in (Right/Left) -->--->---| | |
! 50: * 2 | | |
! 51: * CD in (Right/Left) -->--->---| |--->---+---+----->---- line out
! 52: * 3 | | |
! 53: * GF1 Out (Right/Left) -->--->---| | |
! 54: * 4 | | |
! 55: * Unused (Right/Left) -->--->---| | |
! 56: * +----+ v
! 57: * ICS 2101 |
! 58: * |
! 59: * To GF1 Sample Input ---<---------------+
! 60: *
! 61: * Master output volume: mixer channel #5
! 62: */
! 63:
! 64: /*
! 65: * ICS Mixer registers
! 66: */
! 67:
! 68: #define ICSMIX_CTRL_LEFT 0x00 /* Control left channel */
! 69: #define ICSMIX_CTRL_RIGHT 0x01 /* Control right channel */
! 70: #define ICSMIX_ATTN_LEFT 0x02 /* Attenuate left channel */
! 71: #define ICSMIX_ATTN_RIGHT 0x03 /* Attenutate right channel */
! 72: #define ICSMIX_PAEN 0x04 /* Panning control */
! 73: #define ICSMIX_CHAN_0 0 /* Values for mixer channels */
! 74: #define ICSMIX_CHAN_1 1
! 75: #define ICSMIX_CHAN_2 2
! 76: #define ICSMIX_CHAN_3 3
! 77: #define ICSMIX_CHAN_4 4
! 78: #define ICSMIX_CHAN_5 5
! 79:
! 80: #define ICSMIX_MIN_ATTN 0x7f
! 81: #define ICSMIX_MAX_ATTN 0x00
! 82: /*
! 83: * The ICS mixer is write-only--it cannot be queried for current settings.
! 84: * Drivers must keep track of current values themselves.
! 85: */
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