2000-08-09 00:55:55 +00:00
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/*-
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* Copyright (c) 2000 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Tyler C. Sarna.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _VIA_H
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#define _VIA_H
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/*
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* VIA Technologies VT82C686A Southbridge Audio Driver
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*
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* Documentation links:
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*
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* ftp://ftp.alsa-project.org/pub/manuals/via/686a.pdf
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* ftp://ftp.alsa-project.org/pub/manuals/general/ac97r21.pdf
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* ftp://ftp.alsa-project.org/pub/manuals/ad/AD1881_0.pdf (example AC'97 codec)
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*/
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#define VIA_PCICONF_MISC 0x41
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#define VIA_PCICONF_ACLINKENAB 0x80 /* ac link enab */
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#define VIA_PCICONF_ACNOTRST 0x40 /* ~(ac reset) */
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#define VIA_PCICONF_ACSYNC 0x20 /* ac sync */
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#define VIA_PCICONF_ACVSR 0x08 /* var. samp. rate */
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#define VIA_PCICONF_ACSGD 0x04 /* SGD enab */
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#define VIA_PCICONF_ACFM 0x02 /* FM enab */
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#define VIA_PCICONF_ACSB 0x01 /* SB enab */
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#define VIA_PCICONF_FUNC_EN 0x42
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2002-08-17 16:13:29 +00:00
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#define VIA_PLAY_STAT 0x00
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#define VIA_RECORD_STAT 0x10
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2000-08-09 00:55:55 +00:00
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#define VIA_RPSTAT_INTR 0x03
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2002-08-17 16:13:29 +00:00
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#define VIA_PLAY_CONTROL 0x01
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#define VIA_RECORD_CONTROL 0x11
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2000-08-09 00:55:55 +00:00
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#define VIA_RPCTRL_START 0x80
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#define VIA_RPCTRL_TERMINATE 0x40
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2002-08-17 16:13:29 +00:00
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#define VIA_PLAY_MODE 0x02
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#define VIA_RECORD_MODE 0x12
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2000-08-09 00:55:55 +00:00
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#define VIA_RPMODE_INTR_FLAG 0x01
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#define VIA_RPMODE_INTR_EOL 0x02
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#define VIA_RPMODE_STEREO 0x10
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#define VIA_RPMODE_16BIT 0x20
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#define VIA_RPMODE_AUTOSTART 0x80
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2002-08-17 16:13:29 +00:00
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#define VIA_PLAY_DMAOPS_BASE 0x04
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#define VIA_RECORD_DMAOPS_BASE 0x14
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#define VIA_PLAY_DMAOPS_COUNT 0x0C
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#define VIA_RECORD_DMAOPS_COUNT 0x1C
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2000-08-09 00:55:55 +00:00
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2002-08-17 16:13:29 +00:00
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#define VIA_CODEC_CTL 0x80
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2000-08-09 00:55:55 +00:00
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#define VIA_CODEC_READ 0x00800000
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#define VIA_CODEC_BUSY 0x01000000
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#define VIA_CODEC_PRIVALID 0x02000000
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#define VIA_CODEC_INDEX(x) ((x)<<16)
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#define AC97_REG_EXT_AUDIO_ID 0x28
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#define AC97_CODEC_DOES_VRA 0x0001
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#define AC97_CODEC_DOES_MICVRA 0x0008
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#define AC97_REG_EXT_AUDIO_STAT 0x2A
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#define AC97_ENAB_VRA 0x0001
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#define AC97_ENAB_MICVRA 0x0008
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#define AC97_REG_EXT_DAC_RATE 0x2C
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#define AC97_REG_EXT_ADC_RATE 0x32
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#endif /* _VIA_H */
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