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azt3328.h
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#ifndef __SOUND_AZF3328_H
#define __SOUND_AZF3328_H
/* type argument to use for the I/O functions */
#define WORD_VALUE 0x1000
#define DWORD_VALUE 0x2000
#define BYTE_VALUE 0x4000
/*** main I/O area port indices ***/
/* (only 0x70 of 0x80 bytes saved/restored by Windows driver) */
/* the driver initialisation suggests a layout of 3 main areas:
* from 0x00 (playback), from 0x20 (recording) and from 0x40 (maybe DirectX
* timer ???). and probably another area from 0x60 to 0x6f
* (IRQ management, power management etc. ???). */
/* playback area */
#define IDX_IO_PLAY_FLAGS 0x00
/* able to reactivate output after output muting due to 8/16bit
* output change, just like 0x0002.
* 0x0001 is the only bit that's able to start the DMA counter */
#define DMA_RESUME 0x0001 /* paused if cleared ? */
/* 0x0002 *temporarily* set during DMA stopping. hmm
* both 0x0002 and 0x0004 set in playback setup. */
/* able to reactivate output after output muting due to 8/16bit
* output change, just like 0x0001. */
#define DMA_PLAY_SOMETHING1 0x0002 /* \ alternated (toggled) */
/* 0x0004: NOT able to reactivate output */
#define DMA_PLAY_SOMETHING2 0x0004 /* / bits */
#define SOMETHING_ALMOST_ALWAYS_SET 0x0008 /* ???; can be modified */
#define DMA_EPILOGUE_SOMETHING 0x0010
#define DMA_SOMETHING_ELSE 0x0020 /* ??? */
#define SOMETHING_UNMODIFIABLE 0xffc0 /* unused ? not modifiable */
#define IDX_IO_PLAY_IRQMASK 0x02
/* write back to flags in case flags are set, in order to ACK IRQ in handler
* (bit 1 of port 0x64 indicates interrupt for one of these three types)
* sometimes in this case it just writes 0xffff to globally ACK all IRQs
* settings written are not reflected when reading back, though.
* seems to be IRQ, too (frequently used: port |= 0x07 !), but who knows ? */
#define IRQ_PLAY_SOMETHING 0x0001 /* something & ACK */
#define IRQ_FINISHED_PLAYBUF_1 0x0002 /* 1st dmabuf finished & ACK */
#define IRQ_FINISHED_PLAYBUF_2 0x0004 /* 2nd dmabuf finished & ACK */
#define IRQMASK_SOME_STATUS_1 0x0008 /* \ related bits */
#define IRQMASK_SOME_STATUS_2 0x0010 /* / (checked together in loop) */
#define IRQMASK_UNMODIFIABLE 0xffe0 /* unused ? not modifiable */
#define IDX_IO_PLAY_DMA_START_1 0x04 /* start address of 1st DMA play area */
#define IDX_IO_PLAY_DMA_START_2 0x08 /* start address of 2nd DMA play area */
#define IDX_IO_PLAY_DMA_LEN_1 0x0c /* length of 1st DMA play area */
#define IDX_IO_PLAY_DMA_LEN_2 0x0e /* length of 2nd DMA play area */
#define IDX_IO_PLAY_DMA_CURRPOS 0x10 /* current DMA position */
#define IDX_IO_PLAY_DMA_CURROFS 0x14 /* offset within current DMA play area */
#define IDX_IO_PLAY_SOUNDFORMAT 0x16
/* all unspecified bits can't be modified */
#define SOUNDFORMAT_FREQUENCY_MASK 0x000f
/* all _SUSPECTED_ values are not used by Windows drivers, so we don't
* have any hard facts, only rough measurements */
#define SOUNDFORMAT_FREQ_SUSPECTED_4000 0x0c
#define SOUNDFORMAT_FREQ_SUSPECTED_4800 0x0a
#define SOUNDFORMAT_FREQ_5510 0x0d
#define SOUNDFORMAT_FREQ_6620 0x0b
#define SOUNDFORMAT_FREQ_8000 0x00 /* also 0x0e ? */
#define SOUNDFORMAT_FREQ_9600 0x08
#define SOUNDFORMAT_FREQ_SUSPECTED_12000 0x09
#define SOUNDFORMAT_FREQ_11025 0x01 /* also 0x0f ? */
#define SOUNDFORMAT_FREQ_16000 0x02
#define SOUNDFORMAT_FREQ_22050 0x03
#define SOUNDFORMAT_FREQ_32000 0x04
#define SOUNDFORMAT_FREQ_44100 0x05
#define SOUNDFORMAT_FREQ_48000 0x06
#define SOUNDFORMAT_FREQ_SUSPECTED_64000 0x07
#define SOUNDFORMAT_FLAG_16BIT 0x0010
#define SOUNDFORMAT_FLAG_2CHANNELS 0x0020
/* recording area (see also: playback bit flag definitions) */
#define IDX_IO_REC_FLAGS 0x20 /* ?? */
#define IDX_IO_REC_IRQMASK 0x22 /* ?? */
#define IRQ_REC_SOMETHING 0x0001 /* something & ACK */
#define IRQ_FINISHED_RECBUF_1 0x0002 /* 1st dmabuf finished & ACK */
#define IRQ_FINISHED_RECBUF_2 0x0004 /* 2nd dmabuf finished & ACK */
/* hmm, maybe these are just the corresponding *recording* flags ?
* but OTOH they are most likely at port 0x22 instead */
#define IRQMASK_SOME_STATUS_1 0x0008 /* \ related bits */
#define IRQMASK_SOME_STATUS_2 0x0010 /* / (checked together in loop) */
#define IDX_IO_REC_DMA_START_1 0x24
#define IDX_IO_REC_DMA_START_2 0x28
#define IDX_IO_REC_DMA_LEN_1 0x2c
#define IDX_IO_REC_DMA_LEN_2 0x2e
#define IDX_IO_REC_DMA_CURRPOS 0x30
#define IDX_IO_REC_DMA_CURROFS 0x34
#define IDX_IO_REC_SOUNDFORMAT 0x36
/* some third area ? (after playback and recording) */
#define IDX_IO_SOMETHING_FLAGS 0x40 /* gets set to 0x34 just like port 0x0 and 0x20 on card init */
/* general */
#define IDX_IO_60H 0x60 /* writing 0xffff returns 0xffff */
#define IDX_IO_62H 0x62 /* writing to WORD 0x0062 can hang the box ! --> responsible for IRQ management as a whole ?? */
#define IDX_IO_IRQ63H 0x63 /* FIXME !! */
#define IO_IRQ63H_SOMETHING 0x04 /* being set in IRQ handler in case port 0x00 had 0x0020 set upon IRQ handler */
#define IDX_IO_IRQSTATUS 0x64
#define IRQ_PLAYBACK 0x0001
#define IRQ_RECORDING 0x0002
#define IRQ_MPU401 0x0010
#define IRQ_SOMEIRQ 0x0020 /* ???? */
#define IRQ_WHO_KNOWS_UNUSED 0x00e0 /* probably unused */
#define IDX_IO_66H 0x66 /* writing 0xffff returns 0x0000 */
#define IDX_IO_SOME_VALUE 0x68 /* this is always set to 0x3ff, and writable; maybe some buffer limit, but I couldn't find out more */
#define IDX_IO_6AH 0x6A /* this WORD can be set to have bits 0x0028 activated; actually inhibits PCM playback !!! maybe power management ?? */
#define IDX_IO_6CH 0x6C /* this WORD can have all its bits activated ? */
#define IDX_IO_6EH 0x6E /* writing 0xffff returns 0x83fe */
/* further I/O indices not saved/restored, so probably not used */
/*** I/O 2 area port indices ***/
/* (only 0x06 of 0x08 bytes saved/restored by Windows driver) */
#define IDX_IO2_LEGACY_ADDR 0x04
#define LEGACY_SOMETHING 0x01 /* OPL3 ?? */
#define LEGACY_JOY 0x08
/*** mixer I/O area port indices ***/
/* (only 0x22 of 0x40 bytes saved/restored by Windows driver)
* generally spoken: AC97 register index = AZF3328 mixer reg index + 2
* (in other words: AZF3328 NOT fully AC97 compliant) */
#define MIXER_VOLUME_RIGHT_MASK 0x001f
#define MIXER_VOLUME_LEFT_MASK 0x1f00
#define MIXER_MUTE_MASK 0x8000
#define IDX_MIXER_RESET 0x00 /* does NOT seem to have AC97 ID bits */
#define IDX_MIXER_PLAY_MASTER 0x02
#define IDX_MIXER_MODEMOUT 0x04
#define IDX_MIXER_BASSTREBLE 0x06
#define MIXER_BASSTREBLE_TREBLE_VOLUME_MASK 0x000e
#define MIXER_BASSTREBLE_BASS_VOLUME_MASK 0x0e00
#define IDX_MIXER_PCBEEP 0x08
#define IDX_MIXER_MODEMIN 0x0a
#define IDX_MIXER_MIC 0x0c
#define MIXER_MIC_MICGAIN_20DB_ENHANCEMENT_MASK 0x0040
#define IDX_MIXER_LINEIN 0x0e
#define IDX_MIXER_CDAUDIO 0x10
#define IDX_MIXER_VIDEO 0x12
#define IDX_MIXER_AUX 0x14
#define IDX_MIXER_WAVEOUT 0x16
#define IDX_MIXER_FMSYNTH 0x18
#define IDX_MIXER_REC_SELECT 0x1a
#define MIXER_REC_SELECT_MIC 0x00
#define MIXER_REC_SELECT_CD 0x01
#define MIXER_REC_SELECT_VIDEO 0x02
#define MIXER_REC_SELECT_AUX 0x03
#define MIXER_REC_SELECT_LINEIN 0x04
#define MIXER_REC_SELECT_MIXSTEREO 0x05
#define MIXER_REC_SELECT_MIXMONO 0x06
#define MIXER_REC_SELECT_MONOIN 0x07
#define IDX_MIXER_REC_VOLUME 0x1c
#define IDX_MIXER_ADVCTL1 0x1e
/* unlisted bits are unmodifiable */
#define MIXER_ADVCTL1_3DWIDTH_MASK 0x000e
#define MIXER_ADVCTL1_HIFI3D_MASK 0x0300
#define IDX_MIXER_ADVCTL2 0x20 /* resembles AC97_GENERAL_PURPOSE reg ! */
/* unlisted bits are unmodifiable */
#define MIXER_ADVCTL2_BIT7 0x0080 /* WaveOut 3D Bypass ? mutes WaveOut at LineOut */
#define MIXER_ADVCTL2_BIT8 0x0100 /* is this Modem Out Select ? */
#define MIXER_ADVCTL2_BIT9 0x0200 /* Mono Select Source ? */
#define MIXER_ADVCTL2_BIT13 0x2000 /* 3D enable ? */
#define MIXER_ADVCTL2_BIT15 0x8000 /* unknown */
#define IDX_MIXER_SOMETHING30H 0x30 /* used, but unknown ??? */
/* driver internal flags */
#define SET_CHAN_LEFT 1
#define SET_CHAN_RIGHT 2
#endif /* __SOUND_AZF3328_H */