linux/drivers/usb/host
Alan Stern 50ce5c0683 USB: OHCI: workaround for hardware bug: retired TDs not added to the Done Queue
This patch (as1636) is a partial workaround for a hardware bug
affecting OHCI controllers by NVIDIA at least, maybe others too.  When
the controller retires a Transfer Descriptor, it is supposed to add
the TD onto the Done Queue.  But sometimes this doesn't happen, with
the result that ohci-hcd never realizes the corresponding transfer has
finished.  Symptoms can vary; a typical result is that USB audio stops
working after a while.

The patch works around the problem by recognizing that TDs are always
processed in order.  Therefore, if a later TD is found on the Done
Queue than all the earlier TDs for the same endpoint must be finished
as well.

Unfortunately this won't solve the problem in cases where the missing
TD is the last one in the endpoint's queue.  A complete fix would
require a signficant amount of change to the driver.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Oliver Neukum <oneukum@suse.de>
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-26 14:57:20 -08:00
..
whci USB: whci-hcd: fix NULL dereference on allocation failure 2012-08-15 15:17:39 -07:00
bcma-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ehci-atmel.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ehci-dbg.c USB: EHCI: remove unused Link Power Management code 2012-10-31 12:48:07 -07:00
ehci-fsl.c USB: EHCI: remove ehci_port_power() routine 2012-10-31 12:48:07 -07:00
ehci-fsl.h powerpc/usb: fix bug of CPU hang when missing USB PHY clock 2012-09-05 16:52:08 -07:00
ehci-grlib.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ehci-hcd.c USB: EHCI: miscellaneous cleanups for the library conversion 2012-11-11 18:06:48 -08:00
ehci-hub.c USB: EHCI: prepare to make ehci-hcd a library module 2012-11-01 08:51:12 -07:00
ehci-mem.c USB: EHCI: use hrtimer for (s)iTD deallocation 2012-07-16 16:54:25 -07:00
ehci-msm.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ehci-mv.c drivers/usb/host/ehci-mv.c: use devm_ functions 2012-08-10 12:01:34 -07:00
ehci-mxc.c usb: ehci-mxc: Remove unused 'echi' variable 2012-11-14 12:14:12 -08:00
ehci-octeon.c USB: EHCI: remove ehci_port_power() routine 2012-10-31 12:48:07 -07:00
ehci-omap.c USB: EHCI: remove ehci_port_power() routine 2012-10-31 12:48:07 -07:00
ehci-orion.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ehci-pci.c USB: EHCI: miscellaneous cleanups for the library conversion 2012-11-11 18:06:48 -08:00
ehci-platform.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ehci-pmcmsp.c USB: EHCI: remove ehci_port_power() routine 2012-10-31 12:48:07 -07:00
ehci-ppc-of.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ehci-ps3.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ehci-q.c USB: EHCI: bugfix: urb->hcpriv should not be NULL 2012-11-11 18:10:45 -08:00
ehci-s5p.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ehci-sched.c USB: EHCI: bugfix: urb->hcpriv should not be NULL 2012-11-11 18:10:45 -08:00
ehci-sead3.c Merge v3.6-rc3 into usb-next 2012-08-27 07:15:30 -07:00
ehci-sh.c USB: EHCI: remove ehci_port_power() routine 2012-10-31 12:48:07 -07:00
ehci-spear.c usb: remove use of __devinitdata 2012-11-21 13:27:16 -08:00
ehci-sysfs.c
ehci-tegra.c usb: remove use of __devinitdata 2012-11-21 13:27:16 -08:00
ehci-tilegx.c usb: add host support for the tilegx architecture 2012-07-18 16:40:29 -04:00
ehci-timer.c USB: EHCI: convert warning messages to debug-level 2012-09-21 09:37:53 -07:00
ehci-vt8500.c USB: EHCI: remove unused Link Power Management code 2012-10-31 12:48:07 -07:00
ehci-w90x900.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ehci-xilinx-of.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ehci.h USB: EHCI: miscellaneous cleanups for the library conversion 2012-11-11 18:06:48 -08:00
fhci-dbg.c
fhci-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
fhci-hub.c
fhci-mem.c
fhci-q.c
fhci-sched.c USB: FHCI: use list_move_tail instead of list_del/list_add_tail 2012-09-05 16:55:18 -07:00
fhci-tds.c
fhci.h
fsl-mph-dr-of.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
hwa-hc.c
imx21-dbg.c
imx21-hcd.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
imx21-hcd.h ARM: imx: move platform_data definitions 2012-09-14 11:17:21 +02:00
isp116x-hcd.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
isp116x.h
isp1362-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
isp1362.h
isp1760-hcd.c
isp1760-hcd.h
isp1760-if.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
Kconfig USB: EHCI: make ehci-platform a separate driver 2012-11-01 08:51:13 -07:00
Makefile USB: EHCI: make ehci-platform a separate driver 2012-11-01 08:51:13 -07:00
octeon2-common.c
ohci-at91.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ohci-da8xx.c ARM: davinci: move platform_data definitions 2012-09-14 11:16:54 +02:00
ohci-dbg.c
ohci-ep93xx.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-exynos.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ohci-hcd.c USB: OHCI: remove Alchemy OHCI platform driver. 2012-10-22 11:29:12 -07:00
ohci-hub.c USB: ohci: merge ohci_finish_controller_resume with ohci_resume 2012-10-22 11:23:59 -07:00
ohci-jz4740.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ohci-mem.c
ohci-nxp.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-octeon.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-omap3.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ohci-omap.c USB: ohci: merge ohci_finish_controller_resume with ohci_resume 2012-10-22 11:23:59 -07:00
ohci-pci.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-platform.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ohci-ppc-of.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-ps3.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-pxa27x.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-q.c USB: OHCI: workaround for hardware bug: retired TDs not added to the Done Queue 2012-11-26 14:57:20 -08:00
ohci-s3c2410.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ohci-sa1111.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-sm501.c USB: OHCI: sm501: fix build failure after ohci_finish_controller_resume removal 2012-10-23 10:18:53 -07:00
ohci-spear.c usb: remove use of __devinitdata 2012-11-21 13:27:16 -08:00
ohci-tilegx.c usb: add host support for the tilegx architecture 2012-07-18 16:40:29 -04:00
ohci-tmio.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ohci.h
oxu210hp-hcd.c
oxu210hp.h
pci-quirks.c usb: remove use of __devinitconst 2012-11-21 13:27:16 -08:00
pci-quirks.h usb: host: xhci: fix compilation error for non-PCI based stacks 2012-09-05 12:26:11 -07:00
r8a66597-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
r8a66597.h usb/host/r8a66597: remove conditional compilation of clk code 2012-07-30 17:25:12 -07:00
sl811_cs.c
sl811-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
sl811.h
ssb-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
u132-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
uhci-debug.c
uhci-grlib.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
uhci-hcd.c ARM: vt8500: Add support for UHCI companion controller 2012-08-16 14:00:37 -07:00
uhci-hcd.h
uhci-hub.c
uhci-pci.c
uhci-platform.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
uhci-q.c UHCI: implement new semantics for URB_ISO_ASAP 2012-10-22 11:10:24 -07:00
xhci-dbg.c xhci: trivial: Remove assigned but unused slot_ctx. 2012-10-25 13:13:48 -07:00
xhci-ext-caps.h
xhci-hub.c usb/xhci: Remove (__force__ __u16) before assigning DeviceRemovable and assign directly. 2012-10-22 13:26:48 -07:00
xhci-mem.c xhci: fix null-pointer dereference when destroying half-built segment rings 2012-11-12 11:45:29 -08:00
xhci-pci.c usb: host: xhci: move HC_STATE_SUSPENDED check to xhci_suspend() 2012-11-12 11:45:34 -08:00
xhci-plat.c usb: host: xhci-plat: use ioremap_nocache 2012-09-05 12:07:19 -07:00
xhci-ring.c xHCI: Fix TD Size calculation on 1.0 hosts. 2012-11-12 11:45:28 -08:00
xhci.c usb: host: xhci: move HC_STATE_SUSPENDED check to xhci_suspend() 2012-11-12 11:45:34 -08:00
xhci.h xhci: Avoid global symbol pollution with handshake. 2012-11-12 11:44:25 -08:00