dwc interrupts [was Re: RPI2 MP was e: 2015-05-23-netbsd-raspi-earmv6hf.img (Re: Raspberry Pi update please.)]]

[Nick Hudson <nick.hudson%gmx.co.uk@localhost>]

On 31/05/2015 13:57, Stephan wrote:
> Sorry, could you please explain why this is intended and what kind of 
> interrupt these are?

The dwc2 drivver uses the start-of-frame interrupt to do various things 
including scheduling any pending transfers.

http://nxr.netbsd.org/source/xref/src/sys/external/bsd/dwc2/dist/dwc2_hcdintr.c#dwc2_sof_intr 


If there are any transfers SOF is enabled

http://nxr.netbsd.org/source/s?refs=GINTSTS_SOF&project=src
http://nxr.netbsd.org/source/xref/src/sys/external/bsd/dwc2/dist/dwc2_hcdqueue.c#615 


Nick