718cf2ccb9
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
122 lines
4.0 KiB
C
122 lines
4.0 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
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* All rights reserved.
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*
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* Derived from the public domain Linux driver
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHERIN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THEPOSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _NM256_H_
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#define _NM256_H_
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/* The BIOS signature. */
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#define NM_SIGNATURE 0x4e4d0000
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/* Signature mask. */
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#define NM_SIG_MASK 0xffff0000
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/* Size of the second memory area. */
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#define NM_PORT2_SIZE 4096
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/* The base offset of the mixer in the second memory area. */
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#define NM_MIXER_OFFSET 0x600
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/* The base offset for the AC97 test */
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#define NM_MIXER_PRESENCE 0xa06
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#define NM_PRESENCE_MASK 0x050
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#define NM_PRESENCE_VALUE 0x040
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/* The maximum size of a coefficient entry. */
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#define NM_MAX_COEFFICIENT 0x5000
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/* The interrupt register. */
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#define NM_INT_REG 0xa04
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/* And its bits. */
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#define NM_PLAYBACK_INT 0x40
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#define NM_RECORD_INT 0x100
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#define NM_MISC_INT_1 0x4000
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#define NM_MISC_INT_2 0x1
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/* The AV's "mixer ready" status bit and location. */
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#define NM_MIXER_STATUS_OFFSET 0xa04
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#define NM_MIXER_READY_MASK 0x0800
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/*
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* For the ZX. It uses the same interrupt register, but it holds 32
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* bits instead of 16.
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*/
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#define NM2_PLAYBACK_INT 0x10000
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#define NM2_RECORD_INT 0x80000
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#define NM2_MISC_INT_1 0x8
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#define NM2_MISC_INT_2 0x2
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/* The ZX's "mixer ready" status bit and location. */
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#define NM2_MIXER_STATUS_OFFSET 0xa06
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#define NM2_MIXER_READY_MASK 0x0800
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/* The playback registers start from here. */
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#define NM_PLAYBACK_REG_OFFSET 0x0
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/* The record registers start from here. */
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#define NM_RECORD_REG_OFFSET 0x200
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/* The rate register is located 2 bytes from the start of the register area. */
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#define NM_RATE_REG_OFFSET 2
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/* Mono/stereo flag, number of bits on playback, and rate mask. */
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#define NM_RATE_STEREO 1
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#define NM_RATE_BITS_16 2
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#define NM_RATE_MASK 0xf0
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/* Playback enable register. */
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#define NM_PLAYBACK_ENABLE_REG (NM_PLAYBACK_REG_OFFSET + 0x1)
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#define NM_PLAYBACK_ENABLE_FLAG 1
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#define NM_PLAYBACK_ONESHOT 2
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#define NM_PLAYBACK_FREERUN 4
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/* Mutes the audio output. */
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#define NM_AUDIO_MUTE_REG (NM_PLAYBACK_REG_OFFSET + 0x18)
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#define NM_AUDIO_MUTE_LEFT 0x8000
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#define NM_AUDIO_MUTE_RIGHT 0x0080
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#define NM_AUDIO_MUTE_BOTH 0x8080
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/* Recording enable register. */
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#define NM_RECORD_ENABLE_REG (NM_RECORD_REG_OFFSET + 0)
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#define NM_RECORD_ENABLE_FLAG 1
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#define NM_RECORD_FREERUN 2
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#define NM_RBUFFER_START (NM_RECORD_REG_OFFSET + 0x4)
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#define NM_RBUFFER_END (NM_RECORD_REG_OFFSET + 0x10)
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#define NM_RBUFFER_WMARK (NM_RECORD_REG_OFFSET + 0xc)
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#define NM_RBUFFER_CURRP (NM_RECORD_REG_OFFSET + 0x8)
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#define NM_PBUFFER_START (NM_PLAYBACK_REG_OFFSET + 0x4)
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#define NM_PBUFFER_END (NM_PLAYBACK_REG_OFFSET + 0x14)
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#define NM_PBUFFER_WMARK (NM_PLAYBACK_REG_OFFSET + 0xc)
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#define NM_PBUFFER_CURRP (NM_PLAYBACK_REG_OFFSET + 0x8)
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#endif
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