Play with c #16
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petemoore
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There is no intention to merge this PR, but creating it to help with visibility.
Writing the pcie/pci/xhci/usb/hid/keboard drivers in assembly is somewhat challenging. To aid this process, my idea is to first get things working by transplanting code from the linux kernel to this branch in an attempt to get things working, and once that is achieved, to cut out everything that isn't needed, and to break it down to the simplest parts possible, removing any overhead that isn't applicable to the target platform.
The pcie hardware initialisation is done, but the pcie device enumeration is still needed, and that is what i'm really trying to get done first in this branch. After that I can take care of implementing an xhci driver, and then a usb host controller, human interface device driver, and keyboard driver.