Commit Graph

387980 Commits

Author SHA1 Message Date
Samuel Ortiz ac22ac466a NFC: Add a GET_SE netlink API
In order to fetch the discovered secure elements from an NFC controller,
we need to send a netlink command that will dump the list of available
SEs from NFC.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:35:19 +02:00
Samuel Ortiz 369f4d503a NFC: Fix SE discovery failure warning condition
This is a typo coming from the initial implementation. se_discover fails
when it returns something different than zero and we should only display
a warning in that case.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:35:19 +02:00
Olivier Guiter 56a63c82cf NFC: pn533: Store the correct frame size (normal vs ext)
The extended information frame are sent by PN533 to exchange frames
larger than 255 bytes. These extended frame are very close from the
standard ones except for the header size length. On each incoming
frame, we set the correct header length, and we do that only for the
standard pn533 chipsets as the acr122 does not seem to support extended
frames properly.

Signed-off-by: Olivier Guiter <olivier.guiter@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:35:18 +02:00
Olivier Guiter 963a82e07d NFC: pn533: Split large Tx frames in chunks
On sending large frames (size > 262), we split it in multiple chunks and
send them asynchronously with MI bit.

Signed-off-by: Olivier Guiter <olivier.guiter@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:35:18 +02:00
Olivier Guiter 1575b9d866 NFC: pn533: Add extended information frame decoding support
Extended Information frames are slightly different from standard frames
as they can (theorically) handle datas up tu 64kB. PN533 firmware only
supports packet data up to 265 (incl. TFI byte)
This kind of frame are used when the pn533 wants to exchange more than
255 bytes, and this patch handles the reception of such frames.

Signed-off-by: Olivier Guiter <olivier.guiter@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:35:18 +02:00
Samuel Ortiz 3a8eab39ac NFC: pn533: Enable AUTO RFCA
The AUTO RFCA bit forbids the pn533 chipset to turn its radio on
whenever an external field is present.
Without this bit set, some devices seems to get over flood by the
pn533 rf field and thus become hardly detectable.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:35:18 +02:00
Samuel Ortiz 5eef484561 NFC: pn533: Unconditionaly select the highest p2p bit rate
p2p devices must be able to support 424 kbps, so we should always select
that bitrate in initiator mode.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:35:18 +02:00
Samuel Ortiz a94e10f7d7 NFC: pn533: Request System code from SENSF_REQ
Some devices are getting confused when not being asked for their system
code with type F.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:35:17 +02:00
Samuel Ortiz 17e9d9d437 NFC: pn533: Fix the pn533 polling loop
By turning the radio off after each failed polling try, we dramatically
improve the pn533 polling loop efficiency.
Without this fix, all Android phones running the broadcom NFC stack are
almost never detected.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:35:17 +02:00
Samuel Ortiz f1abed171f NFC: pn533: Fix hardware busy loop when establishing the LLCP link
By using the standard setting for the regular pn533 dongles, we no
longer wait for ever for an ATR_RES. Without this, a failing ATR_REQ
will put the hardware into a busy loop, constantly waiting for an
ATR_RES.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:35:17 +02:00
Samuel Ortiz 91a32269e3 NFC: Define secure element connectivity and transaction events
The SE_CONNECTIVITY event is for an SE to request connection to e.g. a
modem. The SE_TRANSACTION one is sent when an application running on a
specific SE wants to notify the host CPU about the end of a transaction.
Those events respectively map to the EVT_CONNECTIVITY and the
EVT_TRANSACTION HCI events.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:35:17 +02:00
Samuel Ortiz 1972b5b3a6 NFC: Document secure element addition/removal netlink events
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:35:16 +02:00
Samuel Ortiz 0293ba201d MAINTAINERS: Change the NFC subsystem status to Supported
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:28:16 +02:00
Thierry Escande 40dac370ef NFC: Fix missing static declarations
This patch fixes 3 sparse warnings:
nfcsim.c:63:25: sparse: symbol 'wq' was not declared.
nfcsim.c:484:12: sparse: symbol 'nfcsim_init' was not declared.
nfcsim.c:525:13: sparse: symbol 'nfcsim_exit' was not declared.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:28:16 +02:00
Bing Zhao d1e2586f48 mwifiex: fix build error when CONFIG_PM is not set
config: make ARCH=m68k allmodconfig

All error/warnings:

   drivers/net/wireless/mwifiex/cfg80211.c: In function
       'mwifiex_fill_coalesce_rule_info':
>> drivers/net/wireless/mwifiex/cfg80211.c:2493:3: error: implicit
       declaration of function 'mwifiex_is_pattern_supported'
       [-Werror=implicit-function-declaration]
   drivers/net/wireless/mwifiex/cfg80211.c: At top level:
   drivers/net/wireless/mwifiex/cfg80211.c:2537:12: warning:
       'mwifiex_cfg80211_set_coalesce' defined but not used
       [-Wunused-function]
   cc1: some warnings being treated as errors

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-12 14:36:55 -04:00
Sujith Manoharan 16fe28e9b4 ath9k: Run the LNA combining algorithm properly
The LNA combining algorithm has to be run for cards
that support the required diversity features, make
sure that that correct conditions are met before
enabing this algorithm.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:28 -04:00
Sujith Manoharan 7d845871ff ath9k: Fix BTCOEX usage for RX diversity
BTCOEX has to be *disabled* for WLAN RX diversity to
work on combo cards.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:26 -04:00
Felix Fietkau f89d1bc427 ath9k: use software queueing for multicast traffic
Create a per-vif dummy node entry for keeping the multicast software
queues. This helps in setups with a lot of mulitcast traffic that could
otherwise potentially drown out unicast traffic to stations.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:24 -04:00
Felix Fietkau 020f20f693 ath9k: improve tx scheduling fairness
Instead of trying to schedule the same TID multiple times in a loop,
iterate over other TIDs/stations first.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:22 -04:00
Felix Fietkau 2800e82bcc ath9k: use software queues for un-aggregated data packets
This is a first step for improving fairness between legacy and 802.11n
traffic, and it should also improve reliability of resets and channel
changes by keeping the hardware queue depth very short.

When an aggregation session is torn down, all packets in the retry queue
will be removed from the BAW and freed.

For all subframes that have not been transmitted yet, the A-MPDU flag
will be cleared, and a sequence number allocated. This ensures that the
next A-MPDU session will get the correct initial sequence number.
This happens both on aggregation session start and stop.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:20 -04:00
Felix Fietkau 026d5b07c0 ath9k: always clear ps filter bit on new assoc
Otherwise in some cases, EAPOL frames might be filtered during the
initial handshake, causing delays and assoc failures.

Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:18 -04:00
Felix Fietkau 897d7fd9b5 ath9k: fix clearing expired A-MPDU subframes in tx completion
When the tid aggregation state has been marked as inactive, free
completed tx packets immediately. When a new aggregation session has not
been initialized yet, the BAW checks do not recognize it as expired.

Might fix potential stalls in setting up a new aggregation session.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:15 -04:00
Felix Fietkau 73364b0c47 ath9k: prepare queueing code for handling unaggregated traffic
- Allow ath_tx_get_tid_subframe to return non-AMPDU subframes.
- Reset the tid paused state on aggregation stop
- Initialize software queues even when HT is not supported

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:13 -04:00
Felix Fietkau 8fed140855 ath9k: fix block ack window tracking check
When a packet has been tracked as part of the BlockAck window and added
to the hardware queue, it can end up back in the TID queue again with
fi->retries still set to 0 (e.g. if the frame was filtered). Keep an
extra bit for the BAW tracking status to fix this corner case.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:11 -04:00
Felix Fietkau a1cd94d345 ath9k: simplify ath_tx_form_aggr
The check for ATH_AMPDU_SUBFRAME_DEFAULT is unnecessary, since it's set
to half the maximum BlockAck Window size, which is already the maximum
value that h_baw could possibly have. Also remove unnecessary variables.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:09 -04:00