android_kernel_xiaomi_sm8350/drivers/usb/host
Dan Streetman c065c60e83 USB: ehci-sched.c: EHCI SITD scheduling bugfix
Without this patch, the driver won't check that the last fully-occupied
uframe for a new split transaction was vacant beforehand.  This can
lead to a situation in which the first 188 bytes of a 192-byte
isochronous transfer are scheduled in the same uframe as an existing
interrupt transfer.  The resulting schedule looks like this:

       uframe 0: 188-byte isoc-OUT SSPLIT, 8-byte int-IN SSPLIT
       uframe 1: 4-byte isoc-OUT SSPLIT

The SSPLITs are intermingled, causing an error in the downstream hub's
TT.

If you are having problems with devices or hub ports resetting, or failed
interrupt transfers, when you start using a USB audio or video (Isochronous)
device, this patch may help.


Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Reported-by: Kung James <kong1191@gmail.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alan Stern <stern@rowland.harvard.edu>
2009-04-23 14:15:28 -07:00
..
whci USB: whci-hcd: check return value of usb_hcd_link_urb_to_ep() 2009-04-17 10:50:27 -07:00
ehci-au1xxx.c
ehci-dbg.c
ehci-fsl.c
ehci-fsl.h
ehci-hcd.c
ehci-hub.c
ehci-ixp4xx.c
ehci-mem.c
ehci-orion.c
ehci-pci.c
ehci-ppc-of.c
ehci-ps3.c
ehci-q.c
ehci-sched.c USB: ehci-sched.c: EHCI SITD scheduling bugfix 2009-04-23 14:15:28 -07:00
ehci.h
fhci-dbg.c
fhci-hcd.c
fhci-hub.c
fhci-mem.c
fhci-q.c
fhci-sched.c
fhci-tds.c
fhci.h
hwa-hc.c
isp116x-hcd.c
isp116x.h
isp1760-hcd.c
isp1760-hcd.h
isp1760-if.c
Kconfig
Makefile
ohci-at91.c
ohci-au1xxx.c
ohci-dbg.c
ohci-ep93xx.c
ohci-hcd.c
ohci-hub.c
ohci-lh7a404.c
ohci-mem.c
ohci-omap.c
ohci-pci.c
ohci-pnx4008.c
ohci-pnx8550.c
ohci-ppc-of.c
ohci-ppc-soc.c
ohci-ps3.c
ohci-pxa27x.c
ohci-q.c
ohci-s3c2410.c
ohci-sa1111.c
ohci-sh.c
ohci-sm501.c
ohci-ssb.c
ohci-tmio.c
ohci.h
oxu210hp-hcd.c
oxu210hp.h
pci-quirks.c
pci-quirks.h
r8a66597-hcd.c
r8a66597.h
sl811_cs.c
sl811-hcd.c
sl811.h
u132-hcd.c
uhci-debug.c
uhci-hcd.c
uhci-hcd.h
uhci-hub.c
uhci-q.c