Expand description
Implements dual 8237 ISA DMA controllers.
Tested working with Floppy, but may require additional improvements to work properly with other legacy hardware (e.g: Sound Blaster)
Rather than having the DMA controller device be some big, complicated behemoth that asynchronously resolves DMA requests itself (i.e: how the DMA controller works in actual hardware), our virtual DMA controller takes a simpler approach.
This device is essentially just a big bundle-of-registers, which DMA capable
devices can query via the specialized
[vmcore::isa_dma_channel::IsaDmaChannel] trait in order to get the info
they need to fulfil DMA requests themselves.
Structsยง
- DmaController
- Dual 8237 DMA controllers.