mirror of
https://github.com/genodelabs/genode.git
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9d7a58f6a7
Besides updating to a newer version the update adds the AC97 ICH driver
and addresses shortcomings with the OpenBSD emulation environment:
* Fix 'delay(9)' implementation - it now properly uses 'us' as unit,
which results on faster initialization of the drivers.
* Fix LOG output that got lost during commit f23579532 and bring over
the printf implementation from dde_linux for more structured
printing.
* As said the driver now recognizes the AUICH devices. So far it was
only tested with the device model in VirtualBox where it produces
stuttering audio, investigating the cause is still ongoing.
Fixes #3641.
31 lines
947 B
Plaintext
31 lines
947 B
Plaintext
This repository contains device drivers ported from OpenBSD.
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Audio
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#####
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The audio driver is ported from OpenBSD 6.6 and includes support for
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Intel HD Audio, ICH as well as for Ensoniq AudioPCI (ES1370) compatible
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soundcards. The HDA driver works on real hardware and Virtualbox
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whereas the ES1370 driver is only used in Qemu. The ICH driver is only
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tested in Virtualbox where it produces audible artifacts.
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Usage
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=====
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You have to prepare the contrib sources for this repository by
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executing _./tool/ports/prepare_port dde_bsd_. Also you need to make
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sure to add the 'dde_bsd' repository to the REPOSITORIES variable
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in your 'etc/build.conf'.
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Example
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=======
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The driver can be tested by executing the run script 'run/audio_out.run'.
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This example plays a sample file in a loop. The file format is header less
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two channel float 32 at 44100 Hz. You may use the 'sox' utility to create
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these audio files:
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! sox -c 2 -r 44100 foo.wav foo.f32
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