tree 20f12c11377512ea70c3d40b1c562d12810f0401
parent fcb1faba10101d93e68c757bfd7b8809865252b0
author Jonathan Bell <jonathan@raspberrypi.com> 1655892007 +0100
committer Jonathan Bell <jonathan@raspberrypi.com> 1660834828 +0100

cdc_uart: performance improvements

This commit fixes a few deadlock scenarios and makes cdc_task more
amenable to being called in a threadable context. Full-duplex is now
reliable at fast and slow baudrates.

There is still an annoyance where if the CDC interface is deactivated
while the UART RX is still active, buffers queued to the endpoint
hardware aren't flushed. This is a tinyUSB interface bug.

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>