i2400m/USB: TX and RX path backends

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Implements the backend so that the generic driver can TX/RX to/from
the USB device.

TX is implemented with a kthread sitting in a never-ending loop that
when kicked by the generic driver's TX code will pull data from the TX
FIFO and send it to the device until it drains it. Then it goes back
sleep, waiting for another kick.

RX is implemented in a similar fashion, but reads are kicked in by the
device notifying in the interrupt endpoint that data is ready. Device
reset notifications are also sent via the notification endpoint.

We need a thread contexts to run USB autopm functions (blocking) and
to process the received data (can get to be heavy in processing
time).

Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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This commit is contained in:

Inaky Perez-Gonzalez 2008-12-20 16:57:53 -08:00 • committed by Greg Kroah-Hartman

parent 795038107b

commit a8ebf98f54

3 changed files with 915 additions and 0 deletions

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269

drivers/net/wimax/i2400m/usb-notif.c

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417

drivers/net/wimax/i2400m/usb-rx.c

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229

drivers/net/wimax/i2400m/usb-tx.c

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