ALSA: emu10k1: documentation updates
- Less misinformation - Language and whitespace fixups Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de> Link: https://lore.kernel.org/r/20230405201220.2197893-1-oswald.buddenhagen@gmx.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
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@ -723,9 +723,10 @@ Module for EMU10K1/EMU10k2 based PCI sound cards.
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* Sound Blaster Live!
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* Sound Blaster Live!
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* Sound Blaster PCI 512
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* Sound Blaster PCI 512
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* Emu APS (partially supported)
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* Sound Blaster Audigy
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* Sound Blaster Audigy
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* E-MU APS (partially supported)
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* E-MU DAS
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extin
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extin
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bitmap of available external inputs for FX8010 (see below)
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bitmap of available external inputs for FX8010 (see below)
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extout
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extout
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@ -19,9 +19,9 @@ Digital mixer controls
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These controls are built using the DSP instructions. They offer extended
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These controls are built using the DSP instructions. They offer extended
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functionality. Only the default built-in code in the ALSA driver is described
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functionality. Only the default built-in code in the ALSA driver is described
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here. Note that the controls work as attenuators: the maximum value is the
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here. Note that the controls work as attenuators: the maximum value is the
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neutral position leaving the signal unchanged. Note that if the same destination
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neutral position leaving the signal unchanged. Note that if the same destination
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is mentioned in multiple controls, the signal is accumulated and can be wrapped
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is mentioned in multiple controls, the signal is accumulated and can be clipped
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(set to maximal or minimal value without checking of overflow).
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(set to maximal or minimal value without checking for overflow).
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Explanation of used abbreviations:
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Explanation of used abbreviations:
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@ -32,17 +32,17 @@ ADC
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analog to digital converter
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analog to digital converter
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I2S
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I2S
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one-way three wire serial bus for digital sound by Philips Semiconductors
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one-way three wire serial bus for digital sound by Philips Semiconductors
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(this standard is used for connecting standalone DAC and ADC converters)
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(this standard is used for connecting standalone D/A and A/D converters)
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LFE
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LFE
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low frequency effects (subwoofer signal)
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low frequency effects (used as subwoofer signal)
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AC97
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AC97
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a chip containing an analog mixer, DAC and ADC converters
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a chip containing an analog mixer, D/A and A/D converters
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IEC958
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IEC958
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S/PDIF
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S/PDIF
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FX-bus
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FX-bus
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the EMU10K2 chip has an effect bus containing 64 accumulators.
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the EMU10K2 chip has an effect bus containing 64 accumulators.
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Each of the synthesizer voices can feed its output to these accumulators
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Each of the synthesizer voices can feed its output to these accumulators
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and the DSP microcontroller can operate with the resulting sum.
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and the DSP microcontroller can operate with the resulting sum.
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name='PCM Front Playback Volume',index=0
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name='PCM Front Playback Volume',index=0
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----------------------------------------
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----------------------------------------
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@ -218,8 +218,8 @@ LFE outputs.
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name='IEC958 Optical Raw Playback Switch',index=0
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name='IEC958 Optical Raw Playback Switch',index=0
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-------------------------------------------------
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-------------------------------------------------
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If this switch is on, then the samples for the IEC958 (S/PDIF) digital
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If this switch is on, then the samples for the IEC958 (S/PDIF) digital
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output are taken only from the raw FX8010 PCM, otherwise standard front
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output are taken only from the raw iec958 ALSA PCM device (which uses
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PCM samples are taken.
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accumulators 20 and 21 for left and right PCM by default).
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PCM stream related controls
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PCM stream related controls
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@ -237,8 +237,8 @@ as follows:
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name='EMU10K1 PCM Send Routing',index 0-31
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name='EMU10K1 PCM Send Routing',index 0-31
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------------------------------------------
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------------------------------------------
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This control specifies the destination - FX-bus accumulators. There 24
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This control specifies the destination - FX-bus accumulators. There are 24
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values with this mapping:
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values in this mapping:
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* 0 - mono, A destination (FX-bus 0-63), default 0
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* 0 - mono, A destination (FX-bus 0-63), default 0
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* 1 - mono, B destination (FX-bus 0-63), default 1
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* 1 - mono, B destination (FX-bus 0-63), default 1
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@ -306,6 +306,9 @@ MANUALS/PATENTS
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ftp://opensource.creative.com/pub/doc
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ftp://opensource.creative.com/pub/doc
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-------------------------------------
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-------------------------------------
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Note that the site is defunct, but the documents are available
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from various other locations.
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LM4545.pdf
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LM4545.pdf
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AC97 Codec
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AC97 Codec
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@ -15,7 +15,7 @@ The ALSA driver programs this portion of chip by default code
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IEC958 (S/PDIF) raw PCM
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IEC958 (S/PDIF) raw PCM
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=======================
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=======================
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This PCM device (it's the 4th PCM device (index 3!) and first subdevice
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This PCM device (it's the 3rd PCM device (index 2!) and first subdevice
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(index 0) for a given card) allows to forward 48kHz, stereo, 16-bit
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(index 0) for a given card) allows to forward 48kHz, stereo, 16-bit
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little endian streams without any modifications to the digital output
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little endian streams without any modifications to the digital output
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(coaxial or optical). The universal interface allows the creation of up
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(coaxial or optical). The universal interface allows the creation of up
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@ -33,9 +33,9 @@ Digital mixer controls
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These controls are built using the DSP instructions. They offer extended
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These controls are built using the DSP instructions. They offer extended
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functionality. Only the default built-in code in the ALSA driver is described
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functionality. Only the default built-in code in the ALSA driver is described
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here. Note that the controls work as attenuators: the maximum value is the
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here. Note that the controls work as attenuators: the maximum value is the
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neutral position leaving the signal unchanged. Note that if the same destination
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neutral position leaving the signal unchanged. Note that if the same destination
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is mentioned in multiple controls, the signal is accumulated and can be wrapped
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is mentioned in multiple controls, the signal is accumulated and can be clipped
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(set to maximal or minimal value without checking of overflow).
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(set to maximal or minimal value without checking for overflow).
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Explanation of used abbreviations:
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Explanation of used abbreviations:
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@ -46,11 +46,11 @@ ADC
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analog to digital converter
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analog to digital converter
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I2S
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I2S
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one-way three wire serial bus for digital sound by Philips Semiconductors
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one-way three wire serial bus for digital sound by Philips Semiconductors
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(this standard is used for connecting standalone DAC and ADC converters)
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(this standard is used for connecting standalone D/A and A/D converters)
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LFE
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LFE
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low frequency effects (subwoofer signal)
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low frequency effects (used as subwoofer signal)
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AC97
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AC97
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a chip containing an analog mixer, DAC and ADC converters
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a chip containing an analog mixer, D/A and A/D converters
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IEC958
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IEC958
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S/PDIF
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S/PDIF
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FX-bus
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FX-bus
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@ -313,6 +313,9 @@ MANUALS/PATENTS
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ftp://opensource.creative.com/pub/doc
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ftp://opensource.creative.com/pub/doc
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-------------------------------------
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-------------------------------------
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Note that the site is defunct, but the documents are available
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from various other locations.
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LM4545.pdf
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LM4545.pdf
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AC97 Codec
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AC97 Codec
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m2049.pdf
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m2049.pdf
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