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Commit Graph

455681 Commits

Author SHA1 Message Date
Alexander Aring
84ca5e036f 6lowpan: iphc: rename hc06_ptr pointer to hc_ptr
The hc06_ptr pointer variable stands for header compression draft-06. We
are mostly rfc complaint. This patch rename the variable to normal hc_ptr.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-07-30 19:28:39 +02:00
Johan Hedberg
616d55be4c Bluetooth: Fix SMP context tracking leading to a kernel crash
The HCI_CONN_LE_SMP_PEND flag is supposed to indicate whether we have an
SMP context or not. If the context creation fails, or some other error
is indicated between setting the flag and creating the context the flag
must be cleared first.

This patch ensures that smp_chan_create() clears the flag in case of
allocation failure as well as reorders code in smp_cmd_security_req()
that could lead to returning an error between setting the flag and
creating the context.

Without the patch the following kind of kernel crash could be observed
(this one because of unacceptable authentication requirements in a
Security Request):

[  +0.000855] kernel BUG at net/bluetooth/smp.c:606!
[  +0.000000] invalid opcode: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
[  +0.000000] CPU: 0 PID: 58 Comm: kworker/u5:2 Tainted: G        W     3.16.0-rc1+ #785
[  +0.008391] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  +0.000000] Workqueue: hci0 hci_rx_work
[  +0.000000] task: f4dc8f90 ti: f4ef0000 task.ti: f4ef0000
[  +0.000000] EIP: 0060:[<c13432b6>] EFLAGS: 00010246 CPU: 0
[  +0.000000] EIP is at smp_chan_destroy+0x1e/0x145
[  +0.000709] EAX: f46db870 EBX: 00000000 ECX: 00000000 EDX: 00000005
[  +0.000000] ESI: f46db870 EDI: f46db870 EBP: f4ef1dc0 ESP: f4ef1db0
[  +0.000000]  DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[  +0.000000] CR0: 8005003b CR2: b666b0b0 CR3: 00022000 CR4: 00000690
[  +0.000000] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[  +0.000000] DR6: fffe0ff0 DR7: 00000400
[  +0.000000] Stack:
[  +0.000000]  00000005 f17b7840 f46db870 f4ef1dd4 f4ef1de4 c1343441 c134342e 00000000
[  +0.000000]  c1343441 00000005 00000002 00000000 f17b7840 f4ef1e38 c134452a 00002aae
[  +0.000000]  01ef1e00 00002aae f46bd980 f46db870 00000039 ffffffff 00000007 f4ef1e34
[  +0.000000] Call Trace:
[  +0.000000]  [<c1343441>] smp_failure+0x64/0x6c
[  +0.000000]  [<c134342e>] ? smp_failure+0x51/0x6c
[  +0.000000]  [<c1343441>] ? smp_failure+0x64/0x6c
[  +0.000000]  [<c134452a>] smp_sig_channel+0xad6/0xafc
[  +0.000000]  [<c1053b61>] ? vprintk_emit+0x343/0x366
[  +0.000000]  [<c133f34e>] l2cap_recv_frame+0x1337/0x1ac4
[  +0.000000]  [<c133f34e>] ? l2cap_recv_frame+0x1337/0x1ac4
[  +0.000000]  [<c1172307>] ? __dynamic_pr_debug+0x3e/0x40
[  +0.000000]  [<c11702a1>] ? debug_smp_processor_id+0x12/0x14
[  +0.000000]  [<c1340bc9>] l2cap_recv_acldata+0xe8/0x239
[  +0.000000]  [<c1340bc9>] ? l2cap_recv_acldata+0xe8/0x239
[  +0.000000]  [<c1169931>] ? __const_udelay+0x1a/0x1c
[  +0.000000]  [<c131f120>] hci_rx_work+0x1a1/0x286
[  +0.000000]  [<c137244e>] ? mutex_unlock+0x8/0xa
[  +0.000000]  [<c131f120>] ? hci_rx_work+0x1a1/0x286
[  +0.000000]  [<c1038fe5>] process_one_work+0x128/0x1df
[  +0.000000]  [<c1038fe5>] ? process_one_work+0x128/0x1df
[  +0.000000]  [<c10392df>] worker_thread+0x222/0x2de
[  +0.000000]  [<c10390bd>] ? process_scheduled_works+0x21/0x21
[  +0.000000]  [<c103d34c>] kthread+0x82/0x87
[  +0.000000]  [<c1040000>] ? create_new_namespaces+0x90/0x105
[  +0.000000]  [<c13738e1>] ret_from_kernel_thread+0x21/0x30
[  +0.000000]  [<c103d2ca>] ? __kthread_parkme+0x50/0x50
[  +0.000000] Code: 65 f4 89 f0 5b 5e 5f 5d 8d 67 f8 5f c3 57 8d 7c 24 08 83 e4 f8 ff 77 fc 55 89 e5 57 89 c7 56 53 52 8b 98 e0 00 00 00 85 db 75 02 <0f> 0b 8b b3 80 00 00 00 8b 00 c1 ee 03 83 e6 01 89 f2 e8 ef 09
[  +0.000000] EIP: [<c13432b6>] smp_chan_destroy+0x1e/0x145 SS:ESP 0068:f4ef1db0

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-07-30 19:28:38 +02:00
Hans de Goede
568ba389be brcmfmac: Fix OOB interrupt not working for BCM43362
It has taken me a long long time to get the OOB interrupt working on the
AP6210 sdio wifi/bt module found on various Allwinner A20 boards. In the
end I found these magic register pokes in the cubietruck kernel tree:
7f08ba3956

This is also done for the bcm43362 in broadcom's internal/proprietary driver.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
[arend@broadcom.com: rebased changing BCM43362 chip id to fix compilation]
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-07-29 10:32:57 -04:00
Rajkumar Manoharan
cf9ae8fa01 ath9k: Initialize channel context ops on ahb probe
Not doing so, could fail on device probing when use_chanctx
module param is set to true.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-07-29 10:32:57 -04:00
Rafał Miłecki
27cfdb0505 bcma: add support for BCM43131 that was found in Tenda W311E
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-07-29 10:32:57 -04:00
Rafał Miłecki
a67d19d4c5 b43: add support for BCM43131 chipset with N-PHY rev 17
It contains radio 0x2057 rev 14 just like a BCM43217, so it doesn't
require any magic. The main difference is that BCM4313 is 1x1:1.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-07-29 10:32:57 -04:00
Hans de Goede
3cdf0a81ab brcmfmac: Fix some wrong register defines
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-07-29 10:32:56 -04:00
Chen-Yu Tsai
61f663dfc1 brcmfmac: add device tree support for SDIO devices
brcmfmac devices can use an out-of-band interrupt on a GPIO line.
Currently this is specified using platform data. Add support for
specifying out-of-band interrupt via device tree.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
[arend@broadcom.com: conditionalize more of-code, use driver debug routines]
Signed-off-by: Arend van Spriel <arend@broadcom.com>
[hdegoede@redhat.com: drop clk / reg_on gpio handling, as there is no consensus
 on how to handle this yet]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-07-29 10:32:56 -04:00
Arend van Spriel
1217dda7cb dt: bindings: add bindings for Broadcom bcm43xx sdio devices
The Broadcom bcm43xx sdio devices are fullmac devices that may be
integrated in ARM platforms. Currently, the brcmfmac driver for
these devices support use of platform data. This patch specifies
the bindings that allow this platform data to be expressed in the
devicetree.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Daniel (Deognyoun) Kim <dekim@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
[hdegoede@redhat.com: drop clk / reg_on gpio handling, as there is no consensus
 on how to handle this yet]
[hdegoede@redhat.com: move from bindings/staging to bindings]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-07-29 10:32:56 -04:00
John W. Linville
a1ae52c203 Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next 2014-07-29 10:32:36 -04:00
John W. Linville
0da4cc6e62 Merge tag 'for-linville-20140725' of git://github.com/kvalo/ath 2014-07-29 10:32:12 -04:00
John W. Linville
ec87652694 NFC: 3.17 pull request
This is the NFC pull request for 3.17.
 This is a rather quiet one, we have:
 
 - A new driver from ST Microelectronics for their NCI ST21NFCB,
   including device tree  support.
 
 - p2p support for the ST21NFCA driver
 
 - A few fixes an enhancements for the NFC digital layer
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Merge tag 'nfc-next-3.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/nfc-next

Samuel Ortiz <sameo@linux.intel.com> says:

"NFC: 3.17 pull request

This is the NFC pull request for 3.17.
This is a rather quiet one, we have:

- A new driver from ST Microelectronics for their NCI ST21NFCB,
  including device tree  support.

- p2p support for the ST21NFCA driver

- A few fixes an enhancements for the NFC digital layer"

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-07-29 10:31:20 -04:00
Johan Hedberg
3bd2724010 Bluetooth: Fix incorrectly disabling page scan when toggling connectable
If we have entries in the whitelist we shouldn't disable page scanning
when disabling connectable mode. This patch adds the necessary check to
the Set Connectable command handler.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-07-28 20:13:32 +02:00
Johan Hedberg
204e399003 Bluetooth: Fix clearing HCI_PSCAN flag
This patch fixes a typo in the hci_cc_write_scan_enable() function where
we want to clear the HCI_PSCAN flag if the SCAN_PAGE bit of the HCI
command parameter was not set.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-07-28 16:50:52 +02:00
Alexander Aring
6304f8fc39 MAINTAINERS: add 6lowpan header file
Since commit 68d96dcfc6 ("MAINTAINERS: add
net/6lowpan/ maintainer entry") we have a 6lowpan branch. This patch
adds a forgotten file which should also be maintained by this branch.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-07-28 16:49:11 +02:00
Marcel Holtmann
32226e4f1a Bluetooth: Set Simultaneous LE and BR/EDR controller option to zero
With the Bluetooth 4.1 specification the Simultaneous LE and BR/EDR
controller option has been deprecated. It shall be set to zero and
ignored otherwise.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2014-07-27 10:25:52 +03:00
Georg Lukas
729a1051da Bluetooth: Expose default LE advertising interval via debugfs
Expose the default values for minimum and maximum LE advertising
interval via debugfs for testing purposes.

Signed-off-by: Georg Lukas <georg@op-co.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-07-26 19:05:10 +02:00
Georg Lukas
628531c9e9 Bluetooth: Provide defaults for LE advertising interval
Store the default values for minimum and maximum advertising interval
with all the other controller defaults. These vaules are sent to the
adapter whenever advertising is (re)enabled.

Signed-off-by: Georg Lukas <georg@op-co.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-07-26 19:05:09 +02:00
Marcel Holtmann
66d8e837ab Bluetooth: Fix white list handling with resolvable private addresses
Devices using resolvable private addresses are required to provide
an identity resolving key. These devices can not be found using
the current controller white list support. This means if the kernel
knows about any devices with an identity resolving key, the white
list filtering must be disabled.

However so far the kernel kept identity resolving keys around even
for devices that are not using resolvable private addresses. The
notification to userspace clearly hints to not store the key and
so it is best to just remove the key from the kernel as well at
that point.

With this it easy now to detect when using the white list is
possible or when kernel side resolving of addresses is required.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2014-07-26 14:13:19 +03:00
Marcel Holtmann
8540f6c036 Bluetooth: Add support for using controller white list filtering
The Bluetooth controller can use a white list filter when scanning
to avoid waking up the host for devices that are of no interest.

Devices marked as reporting, direct connection (incoming) or general
connection are now added to the controller white list. The update of
the white list happens just before enabling passive scanning.

In case the white list is full and can not hold all devices, the
white list is not used and the filter policy set to accept all
advertisements.

Using the white list for scanning allows for power saving with
controllers that do not handle the duplicate filtering correctly.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2014-07-26 14:13:17 +03:00
John W. Linville
9a244409d0 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
Conflicts:
	net/mac80211/cfg.c

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-07-25 10:22:36 -04:00
Janusz Dziedzic
0ccb7a3485 ath10k: handle attention flags correctly when using A-MSDU
In case of A-MSDU RX we should check attention flags
correctly to be sure we report correct FCS status for
A-MSDU subframes. Without a patch we could report A-MSDU
subframes with wrong FCS as a correct to the stack, next
get a lot of DUP ACK TCP packets. Finally TP drop is seen
and this drop depends on FCS errors ratio for A-MSDU frame.

Example test case when TP drop is seen:
- ath10k configured as an AP
- used ath10k station
- forced A-MSDU (7 frames) on STA
- other traffic on channel (often FCS errors)
- monitor iface added on AP
- TCP STA -> AP traffic (iperf)

a) Iperf logs for case without the patch:

echo "1 64" > htt_max_amsdu_ampdu // disable A-MSDU
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0- 5.0 sec  56.6 MBytes  95.0 Mbits/sec
[  3]  5.0-10.0 sec  60.4 MBytes   101 Mbits/sec
[  3] 10.0-15.0 sec  60.2 MBytes   101 Mbits/sec
[  3] 15.0-20.0 sec  60.2 MBytes   101 Mbits/sec
[  3] 20.0-25.0 sec  63.8 MBytes   107 Mbits/sec
[  3] 25.0-30.0 sec  64.9 MBytes   109 Mbits/sec

echo "7 64" > htt_max_amsdu_ampdu  // set 7 A-MSDU subframes
[  3] 30.0-35.0 sec  40.0 MBytes  67.1 Mbits/sec
[  3] 35.0-40.0 sec  35.9 MBytes  60.2 Mbits/sec
[  3] 40.0-45.0 sec  36.9 MBytes  61.9 Mbits/sec
[  3] 45.0-50.0 sec  37.9 MBytes  63.5 Mbits/sec
[  3] 50.0-55.0 sec  34.5 MBytes  57.9 Mbits/sec
[  3] 55.0-60.0 sec  25.4 MBytes  42.6 Mbits/sec
[  3] 60.0-65.0 sec  48.2 MBytes  81.0 Mbits/sec
[  3] 65.0-70.0 sec  28.8 MBytes  48.2 Mbits/sec
[  3] 70.0-75.0 sec  29.2 MBytes  49.1 Mbits/sec
[  3] 75.0-80.0 sec  22.9 MBytes  38.4 Mbits/sec
[  3] 80.0-85.0 sec  26.4 MBytes  44.2 Mbits/sec
[  3] 85.0-90.0 sec  31.5 MBytes  52.8 Mbits/sec

b) Iperf logs for case with patch:

echo "1 64" > htt_max_amsdu_ampdu // disable A-MSDU
[  3] local 192.168.12.2 port 57512 connected with 192.168.12.1 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0- 5.0 sec  60.8 MBytes   102 Mbits/sec
[  3]  5.0-10.0 sec  62.2 MBytes   104 Mbits/sec
[  3] 10.0-15.0 sec  60.9 MBytes   102 Mbits/sec

echo "7 64" > htt_max_amsdu_ampdu  // set 7 A-MSDU subframes
[  3] 15.0-20.0 sec  68.1 MBytes   114 Mbits/sec
[  3] 20.0-25.0 sec  80.5 MBytes   135 Mbits/sec
[  3] 25.0-30.0 sec  83.0 MBytes   139 Mbits/sec
[  3] 30.0-35.0 sec  79.1 MBytes   133 Mbits/sec
[  3] 35.0-40.0 sec  77.1 MBytes   129 Mbits/sec
[  3] 40.0-45.0 sec  77.4 MBytes   130 Mbits/sec

Reported-by: Denton Gentry <denton.gentry@gmail.com>
Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-07-25 11:51:07 +03:00
Michal Kazior
cf850d1d23 ath10k: don't advertise IBSS iftype for 10.x
The 10.x firmware does not support IBSS mode at
all. It can't beacon and it crashes when trying to
scan.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-07-25 11:15:50 +03:00
Michal Kazior
aa5b4fbcff ath10k: fix Rx aggregation reordering
Firmware doesn't perform Rx reordering so it is
left to the host driver to do that.

Use mac80211 to perform reordering instead of
re-inventing the wheel.

This fixes TCP throughput issues in some
environments.

Reported-by: Denton Gentry <denton.gentry@gmail.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-07-25 11:15:39 +03:00
Kalle Valo
30d88ce331 Merge remote-tracking branch 'wireless-next/master' into ath-next 2014-07-24 20:06:37 +03:00
Marcel Holtmann
4b9e7e7516 Bluetooth: Fix issue with ADV_IND reports and auto-connection handling
When adding remote devices to the kernel using the Add Device management
command, these devices are explicitly allowed to connect. This kind of
incoming connections are possible even when the controller itself is
not connectable.

For BR/EDR this distinction is pretty simple since there is only one
type of incoming connections. With LE this is not that simple anymore
since there are ADV_IND and ADV_DIRECT_IND advertising events.

The ADV_DIRECT_IND advertising events are send for incoming (slave
initiated) connections only. And this is the only thing the kernel
should allow when adding devices using action 0x01. This meaning
of incoming connections is coming from BR/EDR and needs to be
mapped to LE the same way.

Supporting the auto-connection of devices using ADV_IND advertising
events is an important feature as well. However it does not map to
incoming connections. So introduce a new action 0x02 that allows
the kernel to connect to devices using ADV_DIRECT_IND and in addition
ADV_IND advertising reports.

This difference is represented by the new HCI_AUTO_CONN_DIRECT value
for only connecting to ADV_DIRECT_IND. For connection to ADV_IND and
ADV_DIRECT_IND the old value HCI_AUTO_CONN_ALWAYS is used.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2014-07-24 00:37:23 +03:00
Marcel Holtmann
cd4d567138 Bluetooth: Ignore ADV_DIRECT_IND attempts from unknown devices
Unconditionally connecting to devices sending ADV_DIRECT_IND when
the controller is in CONNECTABLE mode is a feature that is not
fully working. The background scanning trigger for this has been
removed, but the statement allowing it to happen in case some
other part triggers is still present. So remove that code part
as well to avoid unwanted connections.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2014-07-24 00:37:20 +03:00
Marcel Holtmann
f4fe73ed56 Bluetooth: Get MWS transport configuration of the controller
If the Bluetooth controller supports Get MWS Transport Layer
Configuration command, then issue it during initialization.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2014-07-23 20:34:08 +03:00
Marcel Holtmann
109e319193 Bluetooth: Read list of local codecs supported by the controller
If the Bluetooth controller supports Read Local Supported Codecs
command, then issue it during initialization so that the list of
codecs is known.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2014-07-23 20:34:06 +03:00
Rafał Miłecki
bac9832076 b43: enable 5 GHz support for N-PHY devices
This has been tested on 14e4:4328 (BCM4321), 14e4:432b (BCM4322),
14e4:4353 (BCM43224) and 14e4:4359 (BCM43228) which is an almost
complete list of 5 GHz capable device (only BCM43222 is missing).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-07-23 13:08:36 -04:00
Rafał Miłecki
b453fda6ba b43: register limited amount of 5G channels for BCM43228
We don't have all needed channel tables due to RE process for this
device.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-07-23 13:08:36 -04:00
Rafał Miłecki
e31cd3be75 b43: N-PHY: don't calculate values for TSSI if we can't transmit
This process requires sending some sample tone, so make sure we're
allowed to transmit first.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-07-23 13:08:36 -04:00
Rafał Miłecki
c062488118 b43: report correct rate to mac80211 for 5 GHz packets
So far we were assuming only A-PHY supports 5 GHz.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-07-23 13:08:35 -04:00
Andrew Bresticker
5d26b50813 mac80211_hwsim: fix compiler warning on MIPS
The dividend in do_div() is expected to be an unsigned 64-bit integer,
which leads to the following warning when building for 32-bit MIPS:

  drivers/net/wireless/mac80211_hwsim.c: In function 'mac80211_hwsim_set_tsf':
  drivers/net/wireless/mac80211_hwsim.c:664:98: warning: comparison of distinct pointer types lacks a cast [enabled by default]
    data->bcn_delta = do_div(delta, bcn_int);

Since we care about the signedness of delta when adjusting tsf_offset
and bcm_delta, use the absolute value for the division and compare
the two timestamps to determine the sign.

Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-07-23 13:08:35 -04:00
Rafał Miłecki
c883ad555e b43: N-PHY: fix rev7+ typos at random places
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-07-23 13:08:35 -04:00
John W. Linville
d878b3af67 Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next 2014-07-23 13:06:17 -04:00
Felix Fietkau
c01fac1c77 ath9k: fix aggregation session lockup
If an aggregation session fails, frames still end up in the driver queue
with IEEE80211_TX_CTL_AMPDU set.
This causes tx for the affected station/tid to stall, since
ath_tx_get_tid_subframe returning packets to send.

Fix this by clearing IEEE80211_TX_CTL_AMPDU as long as no aggregation
session is running.

Cc: stable@vger.kernel.org
Reported-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-07-23 13:03:11 -04:00
John W. Linville
3b8de07492 Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 2014-07-23 13:01:14 -04:00
Mark A. Greer
bf30a67c94 NFC: digital: Add 'tg_listen_md' and 'tg_get_rf_tech' driver hooks
The digital layer of the NFC subsystem currently
supports a 'tg_listen_mdaa' driver hook that supports
devices that can do mode detection and automatic
anticollision.  However, there are some devices that
can do mode detection but not automatic anitcollision
so add the 'tg_listen_md' hook to support those devices.

In order for the digital layer to get the RF technology
detected by the device from the driver, add the
'tg_get_rf_tech' hook.  It is only valid to call this
hook immediately after a successful call to 'tg_listen_md'.

CC: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-07-23 01:17:31 +02:00
Mark A. Greer
f63bac94bf NFC: digital: Remove extra blank line
Remove extra blank line that was inadvertently
added by a recent commit.

CC: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-07-23 01:17:31 +02:00
Christophe Ricard
1892bf844e NFC: st21nfca: Adding P2P support to st21nfca in Initiator & Target mode
Support for Initiator and Target mode with ISO18092 commands support:
- ATR_REQ/ATR_RES
- PSL_REQ/PSL_RES
- DEP_REQ/DEP_RES

Work based on net/nfc/digital_dep.c.
st21nfca is using:
- Gate reader F for P2P in initiator mode.
- Gate card F for P2P in target mode.

Felica tag and p2p are differentiated with NFCID2.
When starting with 01FE it is acting in p2p mode.

On complete_target_discovered on ST21NFCA_RF_READER_F_GATE
supported_protocols is set to NFC_PROTO_NFC_DEP_MASK
for P2P.

Tested against: Nexus S, Galaxy S2, Galaxy S3, Galaxy S3 Mini,
Nexus 4 & Nexus 5.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-07-23 01:14:41 +02:00
Christophe Ricard
d57d74eb76 NFC: st21nfca: Implement stop_poll HCI hook
Send DM_DISCONNECT command to disconnect Terminal Host from the HCI network.

- The persistent states of the terminal host pipes, including registry values,
are not modifies. Therefore, there is no NVRAM update to disconnect the
terminal host.
- The terminal host RF card gates are disabled which means that there will be no event
related to card RF gates until communication has been restored.
- The terminal host RF reader request is reset so the RF reader polling for terminal
host is disabled.

To restore the communication, the terminal host can send any HCI command or event.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-07-23 01:04:31 +02:00
Christophe Ricard
95f7687b20 NFC: hci: Add stop_poll HCI operand.
stop_poll allows to stop CLF reader polling. Some other operations might be
necessary for some CLF to stop polling. For example in card mode.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-07-23 01:04:31 +02:00
Christophe Ricard
0531107e1c NFC: st21nfca: Improve read length sequence for P2P mode.
A DEP_RES with a SUPERVISOR PDU can be up to 16 bytes long.

In order to avoid useless read during p2p, extend first read
sequence to 16 and reduce third sequence to 12 to keep same
total on the full sequence.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-07-23 01:04:31 +02:00
Christophe Ricard
8e9466ccda NFC: st21nfca: Improved start of frame detection
A start of frame is 7E 00 not only 7E. Make sure the first read sequence is
starting with 7E 00.
For example: 7E FF FF FF FF is as a correct crc but it is a bad frame.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-07-23 01:04:31 +02:00
Christophe Ricard
cf577344e2 NFC: st21nfca: Free buffer in case no data are retrieved.
In case no data are retrieve through i2c or one specific case is not handled.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-07-23 01:04:30 +02:00
Christophe Ricard
fb92ff78f8 NFC: st21nfcb: few code clean up
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-07-23 00:49:37 +02:00
Christophe Ricard
bb15b2170c NFC: nci: Add T1T support notification
Add T1T matching with Jewel during notification.
It was causing "the target found does not have the desired protocol"
to show up.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-07-23 00:49:36 +02:00
Christophe Ricard
955164ebb8 NFC: dts: st21nfcb_i2c: Add DTS Documentation
Describe the properties used by the st21nfcb NFC controller driver.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-07-23 00:49:36 +02:00
Christophe Ricard
35630df68d NFC: st21nfcb: Add driver for STMicroelectronics ST21NFCB NFC chip
Add driver for STMicroelectronics ST21NFCB NFC controller.
ST21NFCB is using NCI protocol and a proprietary low level transport
protocol called NDLC used on top.

NDLC:
The protocol defines 2 types of frame:
- One type carrying NCI data (referred as DATAFRAME frames).
- One type carrying protocol information used for flow control and error
control mechanisms (referred as SUPERVISOR frames).

After each frame transmission to the NFC controller, the device host
SHALL waitfor  an ACK (SUPERVISOR frame) reception before sending a
new frame.
The NFC controller MAY send a frame at anytime to the device host.
The NFC controller MAY send a specific WAIT supervisor frame to indicate
to device host that a NCI data packet has been received but that it could
take significant time before the NFC controller sends an ACK and thus
allows next data reception.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-07-23 00:49:28 +02:00