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/* $OpenBSD: cs4231reg.h,v 1.4 2003/06/02 18:40:59 jason Exp $ */
/*
* Copyright (c) 1999 Jason L. Wright (jason@thought.net)
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
/*
* Driver for the CS4231 audio in some sun4m systems
*/
/*
* CS4231 registers from CS web site and Solaris 2.6 includes.
*/
struct cs4231_regs {
volatile u_int8_t iar; /* index address */
volatile u_int8_t _padding1[3]; /* reserved */
volatile u_int8_t idr; /* index data */
volatile u_int8_t _padding2[3]; /* reserved */
volatile u_int8_t status; /* status */
volatile u_int8_t _padding3[3]; /* reserved */
volatile u_int8_t pior; /* PIO data i/o */
volatile u_int8_t _padding4[3]; /* reserved */
volatile u_int32_t dma_csr; /* APC control/status */
volatile u_int32_t _padding5[3]; /* reserved */
volatile u_int32_t dma_cva; /* capture virtual addr */
volatile u_int32_t dma_cc; /* capture count */
volatile u_int32_t dma_cnva; /* capture next virtual addr */
volatile u_int32_t dma_cnc; /* capture next count */
volatile u_int32_t dma_pva; /* playback virtual addr */
volatile u_int32_t dma_pc; /* playback count */
volatile u_int32_t dma_pnva; /* playback next virtual addr */
volatile u_int32_t dma_pnc; /* playback next count */
};
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