Playback is implemented using a target-specific PCM layer,
using the STM32H7 SAI & DMA registers directly. There are
a number of pop/click issues:
1. Slight click when powering up the amplifiers
2. Click when starting and stopping playback
3. Popping when changing playback frequency
4. Popping when shutting down
It should be possible to eliminate or at least mitigate
(2) to (4) in software, but (1) happens as a result of
powering on the amplifiers while everything is muted so
might be unavoidable.
Change-Id: I398b66596176fb2341beb7deba7bf6f4f3fb82b3
Though the rev1 hardware is capable of recording from a
headset mic, this feature seems likely to be dropped on
future hardware revisions, and I don't see much point to
implementing it now.
Change-Id: I77e403bdd1ca53f9018835d3c3042dc86ee0f8f3
Remove the generic TLV320AIC3104 codec header. The codec
is sufficiently complex that a one-size-fits-all driver
isn't really feasible, eg. due to different clocking and
output configurations.
It's easier for targets to have their own audio headers
tailored to their use case than a generic header with
lots of ifdefs.
Change-Id: I63d92d57c28ddd7da7aa3174bd583d8afb1aa56d
2026-02-26 15:00:13 +00:00
Renamed from firmware/export/tlv320aic3104_codec.h (Browse further)
