USB: gadget: Implement hardware queuing in ci13xxx_udc

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Chipidea USB controller provides a means (Add dTD TripWire semaphore)
for safely adding a new dTD to an active endpoint's linked list.  Make
use of this feature to improve performance.  Dynamically allocate and
free dTD for supporting zero length packet termination.  Honor
no_interrupt flag set by gadget drivers.

Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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Pavankumar Kondeti 2011-02-18 17:43:16 +05:30 • committed by Greg Kroah-Hartman

parent 91f58ae619

commit 0e6ca1998e

2 changed files with 104 additions and 76 deletions

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176

drivers/usb/gadget/ci13xxx_udc.c

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4

drivers/usb/gadget/ci13xxx_udc.h

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