ref: e029357a195263d878999872a558ff40b02c469b
dir: /src/audiolib/_pas16.h/
/*
Copyright (C) 1994-1995 Apogee Software, Ltd.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/**********************************************************************
module: _PAS16.H
author: James R. Dose
date: March 27, 1994
Private header for for PAS16.C
(c) Copyright 1994 James R. Dose. All Rights Reserved.
**********************************************************************/
#ifndef ___PAS16_H
#define ___PAS16_H
#define TRUE ( 1 == 1 )
#define FALSE ( !TRUE )
#define VALID ( 1 == 1 )
#define INVALID ( !VALID )
#define lobyte( num ) ( ( int )*( ( char * )&( num ) ) )
#define hibyte( num ) ( ( int )*( ( ( char * )&( num ) ) + 1 ) )
#define STEREO 1
#define SIXTEEN_BIT 2
#define MONO_8BIT 0
#define STEREO_8BIT ( STEREO )
#define MONO_16BIT ( SIXTEEN_BIT )
#define STEREO_16BIT ( STEREO | SIXTEEN_BIT )
#define PAS_MaxMixMode STEREO_16BIT
#define MONO_8BIT_SAMPLE_SIZE 1
#define MONO_16BIT_SAMPLE_SIZE 2
#define STEREO_8BIT_SAMPLE_SIZE ( 2 * MONO_8BIT_SAMPLE_SIZE )
#define STEREO_16BIT_SAMPLE_SIZE ( 2 * MONO_16BIT_SAMPLE_SIZE )
#define PAS_RevisionBits 0xe0
#define AudioFilterControl 0xb8a
#define InterruptControl 0xb8b
#define InterruptStatus 0xb89
#define PCMDataRegister 0xf88
#define CrossChannelControl 0xf8a
#define SampleRateTimer 0x1388
#define SampleBufferCount 0x1389
#define LocalSpeakerTimerCount 0x138a
#define LocalTimerControl 0x138b
#define SampleSizeConfiguration 0x8389
#define AudioMuteFlag 0x20
#define SampleRateTimerGateFlag 0x40
#define SampleBufferCountGateFlag 0x80
#define SampleRateInterruptFlag 0x04
#define SampleBufferInterruptFlag 0x08
#define PAS_SampleSizeMask 0xf3
#define PAS_SignedSampleMask 0xe3
#define PAS_16BitSampleFlag 0x04
#define PAS_UnsignedSampleFlag 0x10
//bSC2msbinv equ 00010000b ;; invert MSB from standard method
#define PAS_OverSamplingMask 0xfc
#define PAS_1xOverSampling 0x00
#define PAS_2xOverSampling 0x01
#define PAS_4xOverSampling 0x03
#define PAS_StereoFlag 0x20
#define PAS_AudioMuteFlag 0x20
#define DEFAULT_BASE ( 0x0388 ^ 0x388 ) /* default base I/O address */
#define ALT_BASE_1 ( 0x0384 ^ 0x388 ) /* first alternate address */
#define ALT_BASE_2 ( 0x038C ^ 0x388 ) /* second alternate address */
#define ALT_BASE_3 ( 0x0288 ^ 0x388 ) /* third alternate address */
#define PAS_DMAEnable 0x80
#define PAS_ChannelConnectMask 0x0f
#define PAS_PCMStartDAC 0xD0
#define PAS_PCMStartADC 0xC0
#define PAS_PCMStopMask 0x3f
#define RECORD 0
#define PLAYBACK 1
#define SelectSampleRateTimer 0x36 // 00110110b
#define SelectSampleBufferCount 0x74 // 01110100b
#define CalcTimeInterval( rate ) \
( 1193180UL / ( rate ) )
#define CalcSamplingRate( interval ) \
( 1193180UL / ( interval ) )
#define MV_Signature 0x4d56
#define MV_SoundInt 0x2f
#define MV_CheckForDriver 0xbc00
#define MV_GetVersion 0xbc01
#define MV_GetPointerToStateTable 0xbc02
#define MV_GetPointerToFunctionTable 0xbc03
#define MV_GetDmaIrqInt 0xbc04
#define MV_SendCommandStructure 0xbc05
#define MV_GetDriverMessage 0xbc06
#define MV_SetHotkeyScanCodes 0xbc0a
#define MV_GetPathToDriver 0xbc0b
#define OUTPUTMIXER 0x00 /* output mixer H/W select */
#define INPUTMIXER 0x40 /* input mixer select */
#define DEFMIXER -1 /* use last mixer selected */
/* left channel values */
#define L_FM 0x01
#define L_IMIXER 0x02
#define L_EXT 0x03
#define L_INT 0x04
#define L_MIC 0x05
#define L_PCM 0x06
#define L_SPEAKER 0x07
#define L_FREE 0x00
#define L_SBDAC 0x00
/* right channel values */
#define R_FM 0x08
#define R_IMIXER 0x09
#define R_EXT 0x0A
#define R_INT 0x0B
#define R_MIC 0x0C
#define R_PCM 0x0D
#define R_SPEAKER 0x0E
#define R_FREE 0x0F
#define R_SBDAC 0x0F
typedef struct
{
unsigned char sysspkrtmr; /* 42 System Speaker Timer Address */
unsigned char systmrctlr; /* 43 System Timer Control */
unsigned char sysspkrreg; /* 61 System Speaker Register */
unsigned char joystick; /* 201 Joystick Register */
unsigned char lfmaddr; /* 388 Left FM Synth Address */
unsigned char lfmdata; /* 389 Left FM Synth Data */
unsigned char rfmaddr; /* 38A Right FM Synth Address */
unsigned char rfmdata; /* 38B Right FM Synth Data */
unsigned char dfmaddr; /* 788 Dual FM Synth Address */
unsigned char dfmdata; /* 789 Dual FM Synth Data */
unsigned char RESRVD1[1]; /* reserved */
unsigned char paudiomixr; /* 78B Paralllel Audio Mixer Control*/
unsigned char audiomixr; /* B88 Audio Mixer Control */
unsigned char intrctlrst; /* B89 Interrupt Status */
unsigned char audiofilt; /* B8A Audio Filter Control */
unsigned char intrctlr; /* B8B Interrupt Control */
unsigned char pcmdata; /* F88 PCM Data I/O Register */
unsigned char RESRVD2; /* reserved */
unsigned char crosschannel; /* F8A Cross Channel */
unsigned char RESRVD3; /* reserved */
unsigned short samplerate; /* 1388 Sample Rate Timer */
unsigned short samplecnt; /* 1389 Sample Count Register */
unsigned short spkrtmr; /* 138A Shadow Speaker Timer Count */
unsigned char tmrctlr; /* 138B Shadow Speaker Timer Control */
unsigned char mdirqvect; /* 1788 MIDI IRQ Vector Register */
unsigned char mdsysctlr; /* 1789 MIDI System Control Register */
unsigned char mdsysstat; /* 178A MIDI IRQ Status Register */
unsigned char mdirqclr; /* 178B MIDI IRQ Clear Register */
unsigned char mdgroup1; /* 1B88 MIDI Group #1 Register */
unsigned char mdgroup2; /* 1B89 MIDI Group #2 Register */
unsigned char mdgroup3; /* 1B8A MIDI Group #3 Register */
unsigned char mdgroup4; /* 1B8B MIDI Group #4 Register */
} MVState;
typedef struct
{
unsigned long SetMixer;
unsigned long SetVolume;
unsigned long SetFilter;
unsigned long SetCrossChannel;
unsigned long GetMixer;
unsigned long GetVolume;
unsigned long GetFilter;
unsigned long GetCrossChannel;
unsigned long ReadSound;
unsigned long FMSplit;
} MVFunc;
int PAS_CheckForDriver( void );
MVState *PAS_GetStateTable( void );
MVFunc *PAS_GetFunctionTable( void );
int PAS_GetCardSettings( void );
void PAS_EnableInterrupt( void );
void PAS_DisableInterrupt( void );
void interrupt far PAS_ServiceInterrupt( void );
//void interrupt PAS_ServiceInterrupt( void );
void PAS_Write( int Register, int Data );
int PAS_Read( int Register );
void PAS_SetSampleRateTimer( void );
void PAS_SetSampleBufferCount( void );
int PAS_SetupDMABuffer( char *BufferPtr, int BufferSize, int mode );
int PAS_GetFilterSetting( int rate );
void PAS_BeginTransfer( int mode );
int PAS_TestAddress( int address );
int PAS_FindCard( void );
int PAS_CallMVFunction( unsigned long function, int ebx, int ecx, int edx );
void PAS_SaveState( void );
void PAS_RestoreState( void );
#pragma aux PAS_TestAddress = \
"mov dx, 0b8bh", \
"xor dx, ax", \
"in al, dx", \
"cmp al, 0ffh", \
"je TestExit", \
"mov ah, al", \
"xor al, 0e0h", \
"out dx, al", \
"jmp TestDelay1", \
"TestDelay1:", \
"jmp TestDelay2", \
"TestDelay2:", \
"in al, dx", \
"xchg al, ah", \
"out dx, al", \
"sub al, ah", \
"TestExit:", \
"and eax, 0ffh" \
parm [ eax ] modify exact [ eax dx ];
#endif