linux-toradex.git/drivers/usb/host/ohci.h, branch v2.6.35.8

USB: ohci: quirk AMD prefetch for USB 1.1 ISO transfer

2009-11-18T00:46:33+00:00

The following patch in the driver is required to avoid USB 1.1 device
failures that may occur due to requests from USB OHCI controllers may
be overwritten if the latency for any pending request by the USB
controller is very long (in the range of milliseconds).

Signed-off-by: Libin Yang 
Cc: David Brownell 
Cc: Alan Stern 
Cc: stable 
Signed-off-by: Greg Kroah-Hartman

usb: remove code associated with !CONFIG_PPC_MERGE

2008-10-17T21:40:57+00:00

Now that arch/ppc is gone we don't need CONFIG_PPC_MERGE anymore remove
the dead code associated with !CONFIG_PPC_MERGE.

Signed-off-by: Kumar Gala 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Signed-off-by: Andrew Morton 
Signed-off-by: Greg Kroah-Hartman

USB: quirk PLL power down mode

2008-08-14T00:32:58+00:00

On some AMD 700 series southbridges, ISO OUT transfers (such as audio
playback through speakers) on the USB OHCI controller may be corrupted
when an A-Link express power saving feature is active.

PLL power down mode in conjunction with link power management feature
L1 being enabled is the bad combination ... this patch prevents them
from being enabled when ISO transfers are pending.

Signed-off-by: Crane Cai 
Signed-off-by: Libin Yang 
Signed-off-by: David Brownell 
Signed-off-by: Greg Kroah-Hartman

USB: Hook start_hnp into ohci struct

2008-08-14T00:32:52+00:00

Signed-off-by: Dmitry Baryshkov 
Acked-by: David Brownell 
Signed-off-by: Greg Kroah-Hartman

USB: ohci: make distrust_firmware a quirk

2008-08-14T00:32:52+00:00

Signed-off-by: Dmitry Baryshkov 
Acked-by: David Brownell 
Cc: Alan Stern 
Signed-off-by: Greg Kroah-Hartman

USB: convert ohci debug files to use debugfs instead of sysfs

2008-02-01T22:34:52+00:00

We should not have multiple line files in sysfs, this moves the data to
debugfs instead, like the UHCI driver.

Signed-off-by: Tony Jones 
Cc: Kay Sievers 
Cc: David Brownell 
Signed-off-by: Greg Kroah-Hartman

USB: add runtime frame_no quirk for big-endian OHCI

2007-10-12T21:55:32+00:00

Add OHCI big endian frame_no quirk.  The frame_no value stored in the
HCCA is a 16 bit field at a specific offset, but since not all CPUs can
do 16-bit memory accesses it's used as a 32 bit field.  And that's why
big-endian OHCI must shift 16 bits ... unless the spec is not followed.

Currently there's one MPC52xx platform that doesn't need the shift. This
patch adds a new "big endian frame_no" quirk to control that at runtime.

Signed-off-by: Valentine Barshak 
Acked-by: Dale Farnsworth 
Signed-off-by: David Brownell 
Signed-off-by: Greg Kroah-Hartman

USB: OHCI handles more ZFMicro quirks

2007-10-12T21:54:59+00:00

The ZF Micro OHCI controller exhibits unexpected behavior that seems to be
related to high load.  Under certain conditions, the controller will
complete a TD, remove it from the endpoint's queue, and fail to add it to
the donelist. This causes the endpoint to appear to stop responding. Worse,
if the device is removed while in that state, OHCI will hang while waiting
for the orphaned TD to complete.  The situation is not recoverable without
rebooting.

This fix enhances the scope of the existing OHCI_QUIRK_ZFMICRO flag:

 1. A watchdog routine periodically scans the OHCI structures to check
    for orphaned TDs. In these cases the TD is taken back from the
    controller and completed normally.

 2. If a device is removed while the endpoint is hung but before the
    watchdog catches the situation, any outstanding TDs are taken back
    from the controller in the 'sanitize' phase.

The ohci-hcd driver used to print "INTR_SF lossage" in this situation;
this changes it to the universally accurate "ED unlink timeout".  Other
instances of this message presumably have different root causes.

Both this Compaq quirk and a NEC quirk are now properly compiled out for
non-PCI builds of this driver.

Signed-off-by: Mike Nuss 
Signed-off-by: David Brownell 
Signed-off-by: Greg Kroah-Hartman

USB: Fix NEC OHCI chip silicon bug

2007-07-12T23:34:29+00:00

This patch fixes a silicon bug in some NEC OHCI chips. The bug appears
at random times and is very, very difficult to reproduce. Without the
following patch, Linux would shut the chip and its associated devices
down. In Apple PowerBooks this leads to an unusable keyboard and mouse
(SSH still working). The idea of restarting the chip is taken from
public Darwin code.

Signed-off-by: Michael Hanselmann 
Cc: David Brownell 
Signed-off-by: Greg Kroah-Hartman

[PATCH] hci_{read,write}l() does force casts to wrong type for no reason

2007-02-09T17:14:08+00:00

readl() et.al. expect iomem pointer, so WTF force-cast it to normal one???

Signed-off-by: Al Viro 
Signed-off-by: Linus Torvalds