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4 commits

Author SHA1 Message Date
Luke
b6a2bbba3b Kernel/USB: Replace PortNumber enum with a raw u8
A hub can technically have up to 255 ports, given that bNbrPorts is a
u8 and the DeviceRemovable field is a VLA to support up to 255 ports.

Source: USB 2.0 Specification Section 11.23.2.1

That means this enum is not going to scale well in terms of size.
Replacing it with a raw u8 allows me to remove the two port assumption
and a cast.
2021-08-14 21:22:44 +02:00
Luke
da0a1068e9 Kernel/USB: Add Hubs and the UHCI Root Hub 2021-08-14 21:22:44 +02:00
Luke
7a86a8df90 Kernel/USB: Create controller base class and introduce USBManagement
This removes Pipes dependency on the UHCIController by introducing a
controller base class. This will be used to implement other controllers
such as OHCI.

Additionally, there can be multiple instances of a UHCI controller.
For example, multiple UHCI instances can be required for systems with
EHCI controllers. EHCI relies on using multiple of either UHCI or OHCI
controllers to drive USB 1.x devices.

This means UHCIController can no longer be a singleton. Multiple
instances of it can now be created and passed to the device and then to
the pipe.

To handle finding and creating these instances, USBManagement has been
introduced. It has the same pattern as the other management classes
such as NetworkManagement.
2021-08-09 21:05:25 +02:00
Liav A
5073bf8e75 Kernel/USB: Move the USB components as a subfolder to the Bus directory 2021-07-02 13:16:12 +02:00
Renamed from Kernel/Devices/USB/USBDevice.h (Browse further)