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