Commit Graph

161 Commits

Author SHA1 Message Date
Ilan Elias 38f04c6b1b NFC: protect nci_data_exchange transactions
Protect 'cb' and 'cb_context' arguments in nci_data_exchange.
In fact, this implements a queue with max length of 1 data
exchange transactions in parallel.

Signed-off-by: Ilan Elias <ilane@ti.com>
Acked-by: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-27 14:34:05 -04:00
Ilan Elias de054799b7 NFC: implicitly deactivate in nci_start_poll
When start_poll is called, and a target was implicitly activated,
we need to implicitly deactivate it.
On the other hand, when the target was activated by the user,
we should not deactivate it.

Signed-off-by: Ilan Elias <ilane@ti.com>
Acked-by: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-27 14:34:04 -04:00
Ilan Elias 2eb1dc101e NFC: improve readability of an 'if' in nci core.c
Signed-off-by: Ilan Elias <ilane@ti.com>
Acked-by: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-27 14:34:04 -04:00
Ilan Elias 6a2968aaf5 NFC: basic NCI protocol implementation
The NFC Controller Interface (NCI) is a standard
communication protocol between an NFC Controller (NFCC)
and a Device Host (DH), defined by the NFC Forum.

Signed-off-by: Ilan Elias <ilane@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-20 14:43:49 -04:00
Ilan Elias 55eb94f9e9 NFC: move nfc.h from include/net to include/net/nfc
The file nfc.h was moved from include/net to include/net/nfc,
since new NFC header files will be added to include/net/nfc.

Signed-off-by: Ilan Elias <ilane@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-20 14:43:49 -04:00
Ilan Elias 8b3fe7b591 NFC: Add dev_up and dev_down control operations
Add 2 new nfc control operations:
dev_up to turn on the nfc device
dev_down to turn off the nfc device

Signed-off-by: Ilan Elias <ilane@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-20 14:43:49 -04:00
Samuel Ortiz e8753043f9 NFC: Reserve tx head and tail room
We can have the NFC core layer allocating the tx head and tail
room for the drivers and avoid 1 or more SKBs copy on write on
the Tx path.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:41:44 -04:00
Lauro Ramos Venancio 23b7869c0f NFC: add the NFC socket raw protocol
This socket protocol is used to perform data exchange with NFC
targets.

Signed-off-by: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
Signed-off-by: Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-05 15:26:58 -04:00
Aloisio Almeida Jr c7fe3b52c1 NFC: add NFC socket family
Signed-off-by: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
Signed-off-by: Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-05 15:26:58 -04:00
Lauro Ramos Venancio 4d12b8b129 NFC: add nfc generic netlink interface
The NFC generic netlink interface exports the NFC control operations
to the user space.

Signed-off-by: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
Signed-off-by: Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-05 15:26:57 -04:00
Lauro Ramos Venancio 3e256b8f8d NFC: add nfc subsystem core
The NFC subsystem core is responsible for providing the device driver
interface. It is also responsible for providing an interface to the control
operations and data exchange.

Signed-off-by: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
Signed-off-by: Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-05 15:26:57 -04:00