usb: r8a66597-udc buffer management update

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This patch updates the r8a66597-udc buffer management code.

Use fixed buffers for bulk and isochronous pipes, also make
sure to handle the isochronous-as-bulk case. With fixed buffers
there is no need to keep track of used buffers with bi_bufnum.

Also, this fixes a potential buffer offset problem where the
base offset incorrectly varies with the number of pipes used.

The m66592 driver recently got fixed in a similar way.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

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This commit is contained in:

Magnus Damm 2009-08-19 14:19:08 +00:00 • committed by Paul Mundt

parent d2e27bdf28

commit ef5ce3b690

2 changed files with 11 additions and 22 deletions

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32

drivers/usb/gadget/r8a66597-udc.c

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1

drivers/usb/gadget/r8a66597-udc.h

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