tree 04438ab0d31ae79e0970cc7f901dd5605a5f4ec1
parent a395298c9c96748cbd6acee4cb9a5ba13fbb3ab8
author Frederic Danis <frederic.danis@linux.intel.com> 1369834502 +0200
committer Samuel Ortiz <sameo@linux.intel.com> 1371210243 +0200

NFC: Add basic NCI over SPI

The NFC Forum defines a transport interface based on
Serial Peripheral Interface (SPI) for the NFC Controller
Interface (NCI).

This module implements the SPI transport of NCI, calling SPI module
directly to read/write data to NFC controller (NFCC).

NFCC driver should provide functions performing device open and close.
It should also provide functions asserting/de-asserting interruption
to prevent TX/RX race conditions.
NFCC driver can also fix a delay between transactions if needed by
the hardware.

Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>