View source for Audio codecs hardware components

==Article purpose==
The purpose of this article is to:
* list the audio codec hardware components that might be integrated in the different STM32MPU[[:Category:ST boards| boards]]
* link these components to the corresponding software framework(s)
* point to the datasheet(s) of these components
* explain, when necessary, how to configure these components.

==Software frameworks==
{{:Internal_peripherals_software_table_template}}
 | Audio
 | [[#Wolfson_wm8994|Wolfson wm8994]]
 | 
 | [[ALSA_overview|ALSA framework]]
 | 
 | DAC & ADC audio codec
 |-
 | Audio
 | [[#Cirrus_cs42l51|Cirrus cs42l51]]
 | 
 | [[ALSA_overview|ALSA framework]]
 | 
 | DAC & ADC audio codec
 |-
 | Audio
 | [[#Silab_sil9022|Silab sil9022]]
 | 
 | [[ALSA_overview|ALSA framework]]
 | 
 | HDMI transmitter
 |-
 | Audio
 | [[#ST_MP34DT01-M|ST MP34DT01-M]]
 | 
 | [[ALSA_overview|ALSA framework]]
 | 
 | Digital microphone
 |-
 |}

==Wolfson wm8994==
The WM8994 is a highly integrated ultra-low power hi-fi CODEC rich in multimedia features.

For details and the datasheet please contact the WM8994 codec provider. 

===Linux driver===
Bindings: {{CodeSource | Linux kernel | Documentation/devicetree/bindings/sound/wm8994.txt}}

Sources:
*{{CodeSource | Linux kernel | drivers/mfd/wm8994-core.c}}
*{{CodeSource | Linux kernel | sound/soc/codecs/wm8994.c}}
*{{CodeSource | Linux kernel | sound/soc/codecs/wm_hubs.c}}

==Cirrus cs42l51==
The CS42L51 is a highly integrated, 24-bit, low-power stereo CODEC. 

For details and the datasheet please contact the CS42L51 codec provider. 

===Linux driver===
Bindings: {{CodeSource | Linux kernel | Documentation/devicetree/bindings/sound/cs42l51.txt ||4.20 }}

Sources: {{CodeSource | Linux kernel | sound/soc/codecs/cs42l51.c}}

==Silab sil9022==
The SiI9022A HDMI transmitter supports the HDMI<sup>&reg;</sup> Specification on a wide range of mobile products.

For details and the datasheet please contact the SiI9022A HDMI transmitter provider. 

===Linux driver===
Bindings: {{CodeSource | Linux kernel | Documentation/devicetree/bindings/display/bridge/sii902x.txt}}

Sources: {{CodeSource | Linux kernel | drivers/gpu/drm/bridge/sii902x.c}}

==ST MP34DT01-M==
The MP34DT01-M is an ultra-compact, low-power, omnidirectional, digital MEMS microphone.

Datasheet: https://www.st.com/resource/en/datasheet/mp34dt01-m.pdf

===Linux driver===
Bindings: {{CodeSource | Linux kernel | Documentation/devicetree/bindings/sound/dmic.txt}}
Sources: {{CodeSource | Linux kernel | sound/soc/codecs/dmic.c}}

<noinclude>
{{Warning|cs42l51 bindings linked forced to 4.20. Version to be removed on next kernel rebase}} 
[[Category:Audio hardware components]]
{{PublicationRequestId | 10357 | 2019-01-21 | AlainF}}
{{ArticleBasedOnModel | Hardware components article model}}
</noinclude>