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[XDMAC] Add missing interrupt events to interrupt handler #39

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@ek-ap ek-ap commented Dec 21, 2021

The DMA interrupt handler does not handle all DMA events. This commit adds treatment for additional events, that can then be covered in the user-registered DMA handler.

A flush event is expected to be called while a DMA request is still pending and waiting for new data. Therefore, the busyStatus is not reset for this interrupt.

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