linux-toradex.git/drivers/usb/host/whci, branch tegra-10.9.9

USB: whci-hcd: always do an update after processing a halted qTD

2009-10-14T21:54:43+00:00

A halted qTD always triggers a hardware list update because the qset was
either removed or reactivated.

Signed-off-by: David Vrabel 
Signed-off-by: Greg Kroah-Hartman

USB: whci-hcd: handle early deletion of endpoints

2009-10-14T21:54:42+00:00

If an endpoint is deleted before it's been fully added to the hardware
list, the associated qset will not be fully initialized and an oops will
occur when complete(&qset->remove_complete) is called.  This can happen
if a queued URB is cancelled.

Fix this by only removing the qset from the hardware list if the
cancelled URB had qTDs.

Signed-off-by: David Vrabel 
Signed-off-by: Greg Kroah-Hartman

const: constify remaining file_operations

2009-10-01T23:11:11+00:00

[akpm@linux-foundation.org: fix KVM]
Signed-off-by: Alexey Dobriyan 
Acked-by: Mike Frysinger 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

USB: whci-hcd: make endpoint_reset method async

2009-09-23T13:46:21+00:00

usb_hcd_endpoint_reset() may be called in atomic context and must not
sleep.  So make whci-hcd's endpoint_reset() asynchronous.  URBs
submitted while the reset is in progress will be queued (on the std
list) and transfers will resume once the reset is complete.

Signed-off-by: David Vrabel 
Signed-off-by: Greg Kroah-Hartman

USB: whci-hcd: check return value of usb_hcd_link_urb_to_ep()

2009-04-17T17:50:27+00:00

Check the return value of usb_hcd_link_urb_to_ep() and do not add the
urb to the ASL/PZL if it returns an error.

Omitting the check results in urbs that appear to be submitted
successfully but then cannot be unliked (because
usb_hcd_check_unlink_urb() returns an error).  This can cause khubd (for
example) to block forever in usb_kill_urb().

Signed-off-by: David Vrabel 
Signed-off-by: Greg Kroah-Hartman

USB: whci-hcd: provide a endpoint_reset method

2009-04-17T17:50:27+00:00

Provide a endpoint_reset method to reset sequence number and current
window.  This QHead information can only be changed while the qset is
not in a schedule.

Signed-off-by: David Vrabel 
Signed-off-by: Greg Kroah-Hartman

wusb: whci-hcd: always lock whc->lock with interrupts disabled

2009-02-16T14:37:12+00:00

Always lock whc->lock with spin_lock_irq() or spin_lock_irqsave().

Signed-off-by: David Vrabel

wusb: timeout when waiting for ASL/PZL updates in whci-hcd

2009-01-07T10:54:22+00:00

Timeout if an ASL or PZL update doesn't not complete and reset the
hardware.

Signed-off-by: David Vrabel

wusb: add debug files for ASL, PZL and DI to the whci-hcd driver

2008-11-26T13:36:59+00:00

Add asl, pzl and di debugfs files to uwb/uwbN/wusbhc for WHCI host
controller.  These dump the current ASL, PZL and DI buffer.

Signed-off-by: David Vrabel

wusb: whci-hcd shouldn't do ASL/PZL updates while channel is inactive

2008-11-25T14:23:40+00:00

ASL/PZL updates while the WUSB channel is inactive (i.e., the PZL and
ASL are stopped) may not complete.  This causes hangs when removing the
whci-hcd module if a device is still connected (removing the device
does an endpoint_disable which results in an ASL update to remove the
qset).

If the WUSB channel is inactive the update can simply be skipped as the
WHC doesn't care about the state of the ASL/PZL.

Signed-off-by: David Vrabel