/*      $NetBSD: tms320av110reg.h,v 1.4 2008/04/28 20:23:51 martin Exp $        */

/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Ignatios Souvatzis.
*
* 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 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.
*/

/*
* Definitions for access to the TMS320AV110AV mpeg audio decoder.
* Based on the TMS320AV110 data sheet.
*
* Currently, only minimum support for audio output. For audio/video
* synchronization, more is needed.
*/

#ifndef _TMS320AV110_REG_H_
#define _TMS320AV110_REG_H_

/* symbolic registers and values */

#define TAV_ANC                         0x06    /* RO, 4 bytes */
#define TAV_ANC_AV                      0x6c    /* RO */
#define TAV_ATTEN_L                     0x1e
#define TAV_ATTEN_R                     0x20
#define TAV_AUD_ID                      0x22
#define TAV_AUD_ID_EN                   0x24

#define TAV_BALE_LIM                    0x68    /* 2 bytes */
#define TAV_BALF_LIM                    0x6A    /* 2 bytes */
#define TAV_BUFF                        0x12    /* RO, 2 bytes */

#define TAV_CRC_ECM                     0x2a
#define TAV_ECM_IGNORE                          0       /* same for SYNC */
#define TAV_ECM_MUTE                            1
#define TAV_ECM_REPEAT                          2
#define TAV_ECM_SKIP                            3

#define TAV_DATAIN                      0x18    /* WO */
#define TAV_DIF                         0x6f

#define TAV_DMPH                        0x46
#define TAV_DRAM_EXT                    0x3e    /* RO */
#define TAV_DRAM_SIZE(ext) ((ext) ? 131072 : 256)
#define TAV_DRAM_HSIZE(ext) ((ext) ? 65536 : 128)

#define TAV_FREE_FORM                   0x14    /* RW, 11 bit */

#define TAV_HEADER                      0x5e    /* RO, 4 bytes */

#define TAV_INTR                        0x1a    /* RO, 2 bytes */
#define TAV_INTR_EN                     0x1c    /* RW, 2 bytes */
#define TAV_INTR_SYNCCHANGE                     0x0001
#define TAV_INTR_HEADERVALID                    0x0002
#define TAV_INTR_PTSVALID                       0x0004
#define TAV_INTR_LOWWATER                       0x0008
#define TAV_INTR_HIGHWATER                      0x0010
#define TAV_INTR_CRCERROR                       0x0020
#define TAV_INTR_ANCILLARY_VALID                0x0040
#define TAV_INTR_ANCILLARY_FULL                 0x0080
#define TAV_INTR_PCM_OUTPUT_UNDERFLOW           0x0100
#define TAV_INTR_SAMPLING_FREQ_CHANGE           0x0200
#define TAV_INTR_DEEMPH_CHANGE                  0x0400
#define TAV_INTR_SRC_DETECT                     0x0800

#define TAV_IRC                         0x78    /* RO, 33 bit */
#define TAV_IRC_CNT                     0x54    /* RO, 33 bit */
#define TAV_IRC_LOAD                    0x7e

#define TAV_LATENCY                     0x3c
#define TAV_MUTE                        0x30

#define TAV_PCM_DIV                     0x6e
#define TAV_PCM_18                      0x16
#define TAV_PCM_FS                      0x44    /* RO */
#define TAV_PCM_ORD                     0x38

#define TAV_PLAY                        0x2e
#define TAV_PTS                         0x62    /* RO, 33 bits */
#define TAV_REPEAT                      0x34
#define TAV_RESET                       0x40
#define TAV_RESTART                     0x42

#define TAV_SRC                         0x72    /* RO, 33 bits */
#define TAV_SIN_EN                      0x70
#define TAV_SKIP                        0x32

#define TAV_STR_SEL                     0x36
#define TAV_STR_SEL_MPEG_AUDIO_STREAM           0
#define TAV_STR_SEL_MPEG_AUDIO_PACKETS          1
#define TAV_STR_SEL_MPEG_SYSTEM_STREAM          2
#define TAV_STR_SEL_AUDIO_BYPASS                3

#define TAV_SYNC_ECM                    0x2c    /* see CRC_ECM */

#define TAV_SYNC_ST                     0x28    /* 0..3 */
#define TAV_SYNC_ST_UNLOCKED                    0
#define TAV_SYNC_ST_ATTEMPTING                  2
#define TAV_SYNC_ST_LOCKED                      3

#define TAV_VERSION                     0x6d

#endif /* _TMS320AV110_REG_H_ */

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