RGBCube/serenity
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3 commits

Author SHA1 Message Date
Sönke Holz
06a32b6e16 Kernel/USB: Handle non-page aligned EHCI controller BARs correctly 
BARs don't have to be page-aligned. This patch correctly calculates the
needed memory range and register base address in that region.
 2024-02-22 07:36:45 +01:00
Hendiadyoin1
2dc20f9e39 Kernel: Use the new API to query and map BAR spaces in most places 
This might be a bit overkill in some instances, but it's nice to be
consistent
 2024-01-12 15:59:47 -07:00
Hendiadyoin1
f4bfd0468b Kernel/USB: Add a rudimentary interrogation only EHCI driver 
This adds a simple EHCI driver that currently only interrogates the
device and checks if all ports are addressable via associated legacy
controllers (companion controllers), and warns if this is not the case.

This also adds a lot of the other data structures needed for actually
driving the controller, but these are currently not hooked up to
anything.

To test this run with `SERENITY_EXTRA_QEMU_ARGS="--device usb-ehci"`
or the q35 machine type
 2023-12-28 17:08:34 +01:00