SM6FBQ / HackRF clone - History

Change GPDMA channel clli member to uint32_t, casting to/from gpdma_lli_t and dealing with the multiple fields was driving me crazy.

Add GPDMA LLI function to enable interrupt after LLI operation is complete.

Expose SGPIO DMA LLI configuration function.
Remove LLI declarations internal to SGPIO DMA module.
Require a start LLI for SGPIO DMA start functions.

Rename SGPIO DMA internal function to match style of public functions.

Remove irrelevant assumption that LLI argument is a pointer to an array.

Change SGPIO DMA configuration API from dividing up a buffer's length into M parts to creating a chain of M transfers of size N.

Move LLI_COUNT constant out of SGPIO DMA utility functions.

Extract SGPIO multi_slice configuration argument into an init-time function, so it doesn't need to be passed each time the SGPIO interface direction is changed.

Bracket SGPIO GPDMA slice configuration with multislice==false test. It only makes sense in single slice mode (until I have a clever idea for doing GPDMA with multiple slices).

Add SGPIO configuration to support GPDMA interrupts.