Add the OPTi 82c930 audio controller #6502
Merged
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Summary
Add the OPTi 82c930 audio controller and give the NEC PowerMate V/BCM FM540 its optional onboard audio.
Known issues: The Windows 95 startup sound stutters when using the drivers from the NEC Ready 7022 preload on a CPU slower than a Pentium 133. Subsequent audio playback does not have issues and the generic drivers from OPTi do not have this issue.
Checklist
References
Provide links to datasheets or other documentation that helped you implement this pull request.
OPTi 82c930 datasheet: https://theretroweb.com/chip/documentation/opti82c930-681c61edcef12277607414.pdf
OPTi MAD16 Linux driver source: https://gitlab.cs.fau.de/sa83dova/linux/-/blob/v2.6.12-rc2/sound/oss/mad16.c
AD1848/WSS Linux driver source: https://gitlab.cs.fau.de/sa83dova/linux/-/blob/v2.6.12-rc2/sound/oss/ad1848.c