Commit Graph

20 Commits

Author SHA1 Message Date
Samuel Ortiz 5e50ee3ae6 NFC: Switch to Initiator mode when getting NFC_ATTR_PROTOCOLS
That is needed for keeping backward compatibility with apps using the old
netlink polling API (NFC_ATTR_PROTOCOLS instead of NFC_ATTR_IM_PROTOCOLS).

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-06-04 21:34:33 +02:00
Samuel Ortiz fc40a8c1a0 NFC: Add target mode activation netlink event
Userspace gets a netlink event upon target mode activation.
The LLCP layer is also signaled when we get an ATR_REQ in order to get
the remote general bytes.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-06-04 21:34:30 +02:00
Samuel Ortiz fe7c580073 NFC: Add target mode protocols to the polling loop startup routine
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-06-04 21:34:29 +02:00
H Hartley Sweeten e5fe4cf8ee NFC: The NFC genl family structure should not be exposed globally
The variable 'nfc_genl_family' is only referenced in this file and
should be marked static to prevent it from being exposed globally.

Quites the sparse warning:

warning: symbol 'nfc_genl_family' was not declared. Should it be static?

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
Cc: Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-15 17:30:30 -04:00
Eric Lapuyade d4ccb13280 NFC: Specify usage for targets found and target lost events
It is now specified that nfc_target_found() and nfc_target_lost() core
functions must not be called from an atomic context. This allow us to
serialize calls and protect the targets table using the nfc device lock
instead of a spinlock.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-15 17:28:00 -04:00
John W. Linville 59ef43e681 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
Conflicts:
	drivers/net/wireless/iwlwifi/iwl-testmode.c
	include/net/nfc/nfc.h
	net/nfc/netlink.c
	net/wireless/nl80211.c
2012-04-18 14:27:48 -04:00
Samuel Ortiz 8112a5c91d NFC: Add a target lost netlink event
Some chips are capable of detecting when a tag is out of the field, so
they could send a netlink event about it to userspace.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-12 15:10:33 -04:00
David S. Miller 1e6428d82b nfc: Stop using NLA_PUT*().
These macros contain a hidden goto, and are thus extremely error
prone and make code hard to audit.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-01 18:11:37 -04:00
Samuel Ortiz 0a40acb246 NFC: Core code identation fixes
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-06 15:16:25 -05:00
Samuel Ortiz 47807d3dbb NFC: Remove the rf mode parameter from the DEP link up routine
When calling nfc_dep_link_up, we implicitely are in initiator mode.
Which means we also can provide the general bytes as a function argument,
as all drivers will eventually request them.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-06 15:16:23 -05:00
Samuel Ortiz c970a1ac4e NFC: Add device powered netlink attribute
For user space to know if a device is up or down.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-06 15:16:19 -05:00
Ilan Elias d5a2ca60e4 NFC: Export new attributes sensb_res and sensf_res
Export new attributes sensb_res for tech B and sensf_res
for tech F in the target info (returned as a response to
NFC_CMD_GET_TARGET).
The max size of the attributes nfcid1, sensb_res and sensf_res
is exported to user space though include/linux/nfc.

Signed-off-by: Ilan Elias <ilane@ti.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-24 14:21:15 -05:00
Ilan Elias 288e0713f4 NFC: Export a new attribute nfcid1 in target info
The nfcid1 is the NFC-A identifier.
It is exported as an attribute of the target info
(returned as a response to NFC_CMD_GET_TARGET).

Signed-off-by: Ilan Elias <ilane@ti.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-04 14:30:43 -05:00
Samuel Ortiz 1ed28f6106 NFC: Add a DEP link control netlink command
NFC-DEP (Data Exchange Protocol) is an NFC MAC layer.
This command allows to enable and disable the DEP link on to which e.g.
LLCP can run.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-14 14:50:12 -05:00
Samuel Ortiz 94a098da42 NFC: Do not take the genl mutex from the netlink release notifier
The netlink notifier is atomic so we must not sleep in that context.
Also we know that Any netlink packets arriving to us will be purged when
the notifier is called, so we don't need to take the mutex.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-14 14:50:12 -05:00
Samuel Ortiz 52858b51b2 NFC: Add function name to the NFC pr_fmt() routine
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-14 14:50:12 -05:00
Joe Perches 24bf330485 nfc: Remove function tracer like entry messages
Logging messages that mimic function tracer enter/exit
aren't necessary.  Just remove them.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-30 15:08:38 -05:00
Joe Perches 20c239c139 nfc: Convert nfc_dbg to pr_debug
Using the standard debugging mechanisms is better than
subsystem specific ones when the subsystem doesn't use
a specific struct.

Coalesce long formats.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-30 15:08:36 -05:00
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
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