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/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Tyler C. Sarna.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _VIA_H
#define _VIA_H
/*
* VIA Technologies VT82C686A Southbridge Audio Driver
*
* Documentation links:
*
* ftp://ftp.alsa-project.org/pub/manuals/via/686a.pdf
* ftp://ftp.alsa-project.org/pub/manuals/general/ac97r21.pdf
* ftp://ftp.alsa-project.org/pub/manuals/ad/AD1881_0.pdf (example AC'97 codec)
*/
#define VIA_PCICONF_MISC 0x41
#define VIA_PCICONF_ACLINKENAB 0x80 /* ac link enab */
#define VIA_PCICONF_ACNOTRST 0x40 /* ~(ac reset) */
#define VIA_PCICONF_ACSYNC 0x20 /* ac sync */
#define VIA_PCICONF_ACVSR 0x08 /* var. samp. rate */
#define VIA_PCICONF_ACSGD 0x04 /* SGD enab */
#define VIA_PCICONF_ACFM 0x02 /* FM enab */
#define VIA_PCICONF_ACSB 0x01 /* SB enab */
#define VIA_PCICONF_FUNC_EN 0x42
#define VIA_PLAY_BASE 0x00
#define VIA_REC_BASE 0x10
#define VIA_RP_STAT 0x00
#define VIA_RPSTAT_INTR 0x03
#define VIA_RP_CONTROL 0x01
#define VIA_RPCTRL_START 0x80
#define VIA_RPCTRL_TERMINATE 0x40
#define VIA_RPCTRL_AUTOSTART 0x20
/* The following are 8233 specific */
#define VIA_RPCTRL_I_STOP 0x04
#define VIA_RPCTRL_I_EOL 0x02
#define VIA_RPCTRL_I_FLAG 0x01
#define VIA_RP_MODE 0x02
#define VIA_RPMODE_INTR_FLAG 0x01
#define VIA_RPMODE_INTR_EOL 0x02
#define VIA_RPMODE_STEREO 0x10
#define VIA_RPMODE_16BIT 0x20
#define VIA_RPMODE_AUTOSTART 0x80
#define VIA_RP_DMAOPS_BASE 0x04
#define VIA8233_RP_DXS_LVOL 0x02
#define VIA8233_RP_DXS_RVOL 0x03
#define VIA8233_RP_RATEFMT 0x08
#define VIA8233_RATEFMT_48K 0xfffff
#define VIA8233_RATEFMT_STEREO 0x00100000
#define VIA8233_RATEFMT_16BIT 0x00200000
#define VIA_RP_DMAOPS_COUNT 0x0C
#define VIA_CODEC_CTL 0x80
#define VIA_CODEC_READ 0x00800000
#define VIA_CODEC_BUSY 0x01000000
#define VIA_CODEC_PRIVALID 0x02000000
#define VIA_CODEC_INDEX(x) ((x)<<16)
#define AC97_REG_EXT_AUDIO_ID 0x28
#define AC97_CODEC_DOES_VRA 0x0001
#define AC97_CODEC_DOES_MICVRA 0x0008
#define AC97_REG_EXT_AUDIO_STAT 0x2A
#define AC97_ENAB_VRA 0x0001
#define AC97_ENAB_MICVRA 0x0008
#define AC97_REG_EXT_DAC_RATE 0x2C
#define AC97_REG_EXT_ADC_RATE 0x32
#endif /* _VIA_H */
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