https://github.com/baron-von-riedesel/hdautils

Utilities for bare metal access to the High Definition Audio controller in DOS
https://github.com/baron-von-riedesel/hdautils

Last synced: 8 days ago
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Utilities for bare metal access to the High Definition Audio controller in DOS

• Host: GitHub
• URL: https://github.com/baron-von-riedesel/hdautils
• Owner: Baron-von-Riedesel
• License: mit
• Created: 2021-01-27T07:42:31.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2024-04-02T03:34:20.000Z (about 1 year ago)
• Last Synced: 2025-04-13T21:40:28.192Z (2 months ago)
• Language: Assembly
• Size: 181 KB
• Stars: 23
• Watchers: 7
• Forks: 2
• Open Issues: 1
• Metadata Files:
  • Readme: Readme.txt
  • Changelog: History.txt
  • License: license.txt

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README

        

  HDAutils consists of 

  1. HDAstat

  Displays status of HD Audio controller and Audio Function Group (AFG) node.

  

  2. HDAplay

   Loads a PCM-coded file ( RIFF format, filenames usually having a .wav 

  extension ) into memory, searches a path to the lineout pin, then starts

  the HDA DMA engine to play and finally launches a shell. Exiting the shell

  will terminate the audio and release all resources.

   Hints

   - For notebooks it might be necessary to add option -s to use the speaker

     or -h to use the headphone instead of lineout.

   - HDAplay is no TSR. It's absolutely inactive while the shell command

     processor is running. The only thing that's running in the background is

     the HDA controller's DMA engine.

   - HDAplay won't do any format conversions. If the codec attached to the HDA

     controller doesn't support the format of the audio data supplied, then

     the output may sound "strange".

   - HDAplay: option -w, possibly combined with -c and/or -d is only useful

     in rare cases; usually options -s or -h should suffice to redirect output.

  For license see file license.txt