git.stricted.de - GitHub/exynos8895/android_kernel_samsung

b43: bus: drop inline from SSB functions

We use all that functions by pointers only. This forces compiler to
create additional duplicated functions that are not inline.
Noticed by Michael in similar bcma code.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

carl9170: set beacon xmit power to the max

Harshal Chhaya discovered during network tests, that
several of his clients dropped-off the network. The
captured packets shows that the beacons sent by the
AP are at a much lower power than the other data
packets.

The reason for this mishap: The driver never updated
the beacon phy register, so all beacons were always
sent at the lowest power.

Reference: http://marc.info/?l=linux-wireless&m=131067225105801
Reported-by: Harshal Chhaya <harshal@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

carl9170: move beacon_update into tx.c

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

carl9170 firmware: update firmware headers

* reserves feature bit for CCA counters

* extends hardware register file definitions

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: use ath_opmode_to_string()

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: remove defines in reg.h that exist in ../reg.h

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: use get_unaligned_{b16, le16, le32} where possible

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath: use get_unaligned_le{16,32} in ath_hw_keysetmac()

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

bcma: extract SPROM rev 9 the same way as rev 8

SPROM rev 9 was discovered on 14e4:4331, it seems to have very similar
layout to rev 8 one. Use the same extracting function until we find some
differences.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

bcma: cc: set GPIOTIMER register

We use value supplied via SPROM, or default 10:90 as fallback.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ssb: SPROM: add LED duty cycle fields

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

mac80211: reconfigure tx on device reconfiguration

Add tx_conf array to save the current tx queues
configuration, and reconfig it on resume (ieee80211_reconfig).

On resume, the driver is being reconfigured. Without
reconfiguring the tx queues as well, the driver might
configure the device to use wrong ac params (e.g. ps-poll
instead of uapsd).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: add tx start API to transport layer

tx start will start the tx queues: basically configure the SCD
Remove the IWLAGN prefix to SCD defines on the way.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.guy@intel.com>

iwlagn: move all the ICT related functions to iwl-trans-rx-pcie.c

Since the ICT is transport related, move all its functions to the transport
layer.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

iwlagn: move iwlagn_stop_device to transport layer

Since iwlagn_stop_device was the only caller to the rx_stop / tx_stop,
these two don't need to be API any more.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.guy@intel.com>

iwlagn: move tx transport functions to iwl-trans-tx-pcie.c

There are still a few functions here and there that should be
put in the transport layer. Mainly the functions that are related to the reclaim flow.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

iwlagn: move rx transport functions to iwl-trans-rx-pcie.c

Also create a new file: iwl-trans-int-pcie.h which will include
the non static functions that are shared among the current pcie transport layer.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

iwlagn: remove indirection for iwlagn_hw_valid_rtc_data_addr

Not needed since the driver split.

Signed-off-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

iwlagn: calibration bitmap

Define bitmap for calibration

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

iwlagn: set default of uCode ownership to driver

The driver should take the ownership of the uCode as default setting
for later operations after interface up.

Signed-off-by: Kenny Hsu <kenny.hsu@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

iwlagn: simplify TX flags assignments

The first assignment of TX_CMD_FLG_SEQ_CTL_MSK for
ack-expected mgmt frames is overwritten later in
the function, so it's useless. Also, probe response
frames, BACK request and others there are mutually
exclusive so can be moved into an else branch.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

iwlagn: add comment to tx and get_tx_cmd in iwl_trans_ops

Those comments were missed in a previous commit.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

iwlagn: comments for iwl_cfg

Modify the comments for iwl_cfg, no functional changes

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

iwlagn: another double indirect removed

Another clean up work after driver split

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

iwlagn: remove dual-indirect call to simply the code

After driver split, no need to make the code so complex

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

iwlagn: remove un-necessary file

Most of the functions in iwl-agn-hcmd are move to other files, no point to
keep the file anymore.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

iwlagn: move the Rx dispatching to the upper layer

The upper layer receives a pointer to an iwl_rx_mem_buffer. I would prefer the
upper layer to receive a pointer to an iwl_rx_packet, but this is impossible
since the Rx path needs to add the address of the page to the skb.
I may find a solution later.

All the pre_rx_handler and notification code has been moved to the upper layer.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

iwlagn: move sync_irq to transport layer

Since all the irq / tasklet is now handled in the transport layer, it should
give an API to ensure that all the irq / tasklet have finished running. This
will allow the upper layer to release all its resources.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

iwlagn: move the tasklet / irq to the transport layer

PCIe doesn't provide any ISR registration API, whereas other buses do.
Hence, we need to move the tasklet and irq to the transport layer to allow this
flexibility.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

iwlagn: move Tx datapath to transport layer

Split the Tx datapath in two parts:
* the first deals with the Tx cmd composition
* the second attaches the skb + Tx cmd to the queues

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

mac80211: be more careful in suspend/resume

When suspending with all netdevs down, the device
is stopped but we still call a number of driver
callbacks that the driver might not expect. The
same happens during resume, we might call a few
callbacks without starting the driver. Fix this
by checking open_count around more things and
exiting quickly if it is 0.

Also, while at this I noticed that the coverage
class isn't reprogrammed after resume, so add
that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

carl9170: fix formatting issues found by checkpatch

Signed-off-by: Pavel Roskin <proski@gnu.org>
Acked-By: christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

MAINTAINERS: add entry for Marvell mwifiex wireless driver

Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

mac80211: let key iteration get keys in install order

ieee80211_iter_keys() currently returns keys in
the backward order they were installed in, which
is a bit confusing. Add them to the tail of the
key list to make sure iterations go in the same
order that keys were originally installed in.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

mac80211: allow driver access to TKIP RX P1K

When the driver wants to pre-program the TKIP
RX phase 1 key, it needs to be able to obtain
it for the peer's TA. Add API to allow it to
generate it.

The generation uses a dummy on-stack context
since it doesn't know the RX queue.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: improve reliability of MIC error detection

For unicast the hardware sometimes reports MIC errors even though the
frame that it received actually contains a valid MIC - on some chips this
can happen frequently enough to trigger TKIP countermeasures.
Fix this issue by not reporting MIC errors for unicast frames with a
valid key, letting mac80211 validate the MIC instead.

Additionally, strip the MIC for all frames that the hardware considers
valid to avoid wasting CPU cycles re-validating it.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

orinoco: minor fixes for problems found by checkpatch.pl

Eliminate spaces before tabs. Eliminate typedefs. Add spaces around
operators.

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

mwl8k: Fixing sta dereference when ieee80211_tx_info->control.sta is NULL

Following oops was seen on SMP machine

>BUG: unable to handle kernel NULL pointer dereference at 00000012
>IP: [<f8c56691>] mwl8k_tx+0x20e/0x561 [mwl8k]
>*pde = 00000000
>Oops: 0000 [#1] SMP
>Modules linked in: mwl8k mac80211 cfg80211 [last unloaded: cfg80211]

As ieee80211_tx_info->control.sta may be NULL during ->tx call, avoiding sta
dereference in such scenario with the following patch.

Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

nl80211/cfg80211: add max_sched_scan_ie_len in the hw description

Some chips may support different lengths of user-supplied IEs with a
single scheduled scan command than with a single normal scan command.

To support this, this patch creates a separate hardware description
element that describes the maximum size of user-supplied information
element data supported in scheduled scans.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

nl80211/cfg80211: add max_sched_scan_ssids in the hw description

Some chips can scan more SSIDs with a single scheduled scan command
than with a single normal scan command (eg. wl12xx chips).

To support this, this patch creates a separate hardware description
element that describes the amount of SSIDs supported in scheduled
scans.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

nl80211: advertise GTK rekey support, new triggers

Since we now have the necessary API in place to support
GTK rekeying, applications will need to know whether it
is supported by a device. Add a pseudo-trigger that is
used only to advertise that capability. Also, add some
new triggers that match what iwlagn devices can do.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

mac80211: allow driver to disconnect after resume

In WoWLAN, devices may use crypto keys for TX/RX
and could also implement GTK rekeying. If the
driver isn't able to retrieve replay counters and
similar information from the device upon resume,
or if the device isn't responsive due to platform
issues, it isn't safe to keep the connection up
as GTK rekey messages from during the sleep time
could be replayed against it.

The only protection against that is disconnecting
from the AP. Modifying mac80211 to do that while
it is resuming would be very complex and invasive
in the case that the driver requires a reconfig,
so do it after it has resumed completely. In that
case, however, packets might be replayed since it
can then only happen after TX/RX are up again, so
mark keys for interfaces that need to disconnect
as "tainted" and drop all packets that are sent
or received with those keys.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

mac80211: remove a redundant check

is_valid_ether_addr itself checks for is_zero_ether_addr

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

mwifiex: add cfg80211 handler for set_bitrate_mask

Currently, setting only legacy bitrates on 2.4GHz band
are supported. Mode 802.11b/g/bg is enabled based on
bitrates selection. If only CCK bitrates selected then
802.11b mode is enabled. If only OFDM bitrates are
selected then 802.11g mode is enabled. For both: CCK
and OFDM rates 802.11bg mixed mode is enabled.

Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath5k: do not call ieee80211_stop_queue for queues not managed by mac80211

Instead of using ieee80211_stop_queue, check the configured tx queue
limit before calling ieee80211_get_buffered_bc.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath5k: disable 32KHz sleep clock operation by default

While 32 KHz sleep clock might provide some power saving benefits,
it is also a major source of stability issues, on OpenWrt it produced
some reproducible data bus errors on register accesses on several
different MIPS platforms.

All the Atheros drivers that I can find do not enable this feature,
so it makes sense to leave it disabled in ath5k as well.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath5k: fix reference clock usec duration setting restore

enabling the sleep clock alters the AR5K_USEC_32 field, but disabling
it didn't restore it.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath5k: delay full calibration after reset

During scans the full calibration usually does not make much sense,
PAPD probing and IQ calibration should be deferred until there is
enough time to complete them. Adding 100 ms to the initial full
calibration delay should be enough to do this.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath5k: initialize common->clockrate

Fixes a division by zero when setting distance before activating the
device for the first time.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath5k: fix reference clock frequency for spur mitigation on AR2413

AR2413 uses the same reference clock as AR5413

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath5k: apply the synth voltage tweak only on AR5112 rev 2

Might fix some stability issues on newer chips

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath5k: add missing checks for rfgain probe

rfgain probe is only necessary for OFDM operation on AR5111 and AR5112.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k_hw: Fix incorrect key_miss handling

Decryping frames on key_miss handling shouldn't be done for Michael
MIC failed frames as h/w would have already decrypted such frames
successfully anyway.

Also leaving CRC and PHY error(where the frame is going to be dropped
anyway), we are left to prcoess Decrypt error for which s/w decrypt is
selected anway and so having key_miss as a separate check doesn't serve
anything. So making key_miss handling mutually exlusive with other RX
status handling makes much more sense.

This patch addresses an issue with STA not reporting MIC failure events
resulting in STA being disconnected immediately.

Cc: stable@kernel.org
Signed-off-by: Senthil Balasubramanian <senthilb@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: Add missing comma between constant string array

Multiple quoted strings are concatenated without comma separators.

Make the array const while there.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlegacy: Add missing comma between constant string array

Multiple quoted strings are concatenated without comma separators.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: fix warning in testmode attribute table

Fix the compile warning cause by [IWL_TM_ATTR_MAX - 1]

Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: remove an unnecessary function declaration

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rt2800usb: Add new device ID for Belkin

Belkin's Connect N150 Wireless USB Adapter, model F7D1101 version 2, uses ID 0x945b.
Chipset info: rt: 3390, rf: 000b, rev: 3213.
I have just bought one, which started to work perfectly after the ID was added through this patch.

Signed-off-by: Eduardo Bacchi Kienetz <eduardo@kienetz.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath5k: Add missing breaks in switch/case

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rtlwifi: rtl8192cu: Fix duplicate if test

A typo causes routine rtl92cu_phy_rf6052_set_cck_txpower() to test the
same condition twice. The problem was found using cppcheck-1.49, and the
proper fix was verified against the pre-mac80211 version of the code.

Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: stable <stable@kernel.org> [back to 2.6.39]
Signed-off-by: John W. Linville <linville@tuxdriver.com>

libertas: fix handling of command timeout, completion and interruption

When commands time out, corruption ensues. As lbs_complete_command()
is called without locking, the command node is mistakenly freed twice.
Also fixed up locking here in a few other places.

The nature of command timeout may be that the card didn't even
acknowledge receipt of the request. Detect this case and reset dnld_sent
so that other commands don't hang forever.

When cmdnodes are moved between the free list and the pending list,
their list heads should be reinitialized. Fixed this.

Sometimes commands are completed without actually submitting them or
removing them from cmdpendingq. We must remember to remove them from
cmdpendingq in these cases, so handle this in lbs_complete_command().

Harmless signals generated during suspend/resume were interrupting
lbs_cmd. Convert to an uninterruptible sleep to avoid this.

lbs_thread must be woken up every time there is some new work to do.
I found that when 2 commands are queued, ther completion of the first
command would not wake up lbs_thread to submit the second. Poke lbs_thread
at the end of lbs_complete_command() to fix this.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

mac80211: allocate only one RX queue

We don't have multiple RX queues, so there's no use
in allocating multiple, use alloc_netdev_mqs() to
allocate multiple TX but only one RX queue.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

mac80211: fix docbook

I changed the TKIP key functions, but forgot to
update the documentation includes, fix that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

cfg80211: fix docbook

Looks like I forgot to document the "gfp" parameter
to cfg80211_gtk_rekey_notify, add it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

bcma: add check if sprom is available before accessing it.

The SoCs like the bcm4716 do not have a sprom on the bcma bus like a
pcie device. It stores the values in some partition on flash memory.
For ssb this informations are read out in the bcm47xx arch code,
something like that should also be implemented for bcma. Without this
patch bcma panics on SoCs.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

libertas: fix errors in functions accessing module registers

Problems located in the two functions lbs_set_reg() and lbs_get_reg():
- The offset field of struct cmd_ds_reg_access was not filled in
- The test on the return code of lbs_cmd_with_response() in function
lbs_get_reg() was inverted

Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath5k: fix typos, bad comment formatting and GHz in place of MHz

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath5k: validate mode in ath5k_ani_init() before trying to set it

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k_hw: add a missing delay for an analog register

AR_AN_SYNTH9 is in the analog shift register range and thus needs to be
written using the ath9k_hw_analog_shift_rmw function.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k_hw: fix synth delay for half/quarter channels

The radio needs twice / four times as much time to stabilize for half/quarter
channels.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k_hw: set 5 GHz half/quarter channels on AR9002 using fractional mode

The radio seems to perform better that way

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k_hw: remove ar9287 v1.3+ specific hardcoded register hacks

Now that the clock rate is initialized properly and SIFS, EIFS, USEC,
slot time and ACK timeout are properly calculated by the generic code,
the 'async FIFO' register hacks are no longer necessary.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k_hw: initialize more timing related registers for half/quarter channels

Initialize the the clock-to-TSF field of AR_USEC and the SIFS and EIFS time
registers based on the clock rate instead of relying on initvals.
With those changes, some of the hardcoded AR9287 1.3+ specific overrides
can be dropped.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k_hw: fix MAC clock rate for AR9287 v1.3+

This chip uses the async FIFO feature and runs the MAC at 117 MHz

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k_hw: fix MAC clock for half/quarter rate

Enabling half/quarter rate makes the MAC run at half/quarter clock speed.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k_hw: always enable 5 GHz fast clock for AR9280

All devices support this, but some disable it using an EEPROM flag
for some reason. Improves 5 GHz performance on those devices.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k_hw: remove hardcoded PLL overrides for AR9280

Use the proper masks for the register instead.
Fixes adding the (still unused) half/quarter PLL flags.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

mwifiex: 11n specific configuration for transmit

Currently device is not able to transmit in 40MHz in spite of
enabling 40MHz support in HTCapInfo IE in assoc req, because
11n specific FW capabilities for transmission are not initialized.
This patch adds code to initilize these capabilities.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: remove iwlagn_hcmd_utils structure and call directly

Not needed since the driver split. Move single use routines to
calling location and keep static where possible.

Signed-off-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: separate and enhance the fixed rate from

For testing purpose, we need better control of msc from user application.
Separate the fixed_rate between debugfs and testmode and enforce it.

Signed-off-by: Kenny Hsu <kenny.hsu@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: block regular host commands if driver don't own uCode

The only host command allow to send to uCode is the one initiated from
testmode if testmode is the owner of uCode

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: allow application own the uCode operation

Since we open the door to allow application control the device behavior through
testmode, add command to allow application request the ownership of the uCode

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: add CMD_ON_DEMAND flag for host command from testmode

For all the hist command request from testmode, set the CMD_ON_DEMAND flag.
this flag will be used later to control the uCode behavior

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: declare static

Declare iwl_mac_rssi_callback as "static"

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: Enable/disable PS poll based on RSSI and BT coex traffic state

WiFi throughput drops drastically when BT is turned on, BT and WiFi
are simultaneously transmitting/receiving traffic. This is particularly true
when BT has higher priority over WiFi, and hence the device defers TX frames.
The AP assumes that the channel is bad and reduces the data rate, implying
longer airtime, which exacerbates the problem further, resulting ultimately
in what is popularly called the "death-spiral" phenomenon. The use of PS-poll
in such scenarios guarantees a low but consistent throughput.

Since the death-spiral phenomenon is observed only when the RSSI is low, use
PS-poll only when RSSI is low and disable when high, with a known hysterisis.

This feature specifies the high and low thresholds and implements the
callbacks registered with mac80211, which will be called when threshold events
occur.

iwlwifi: dynamic pspoll: optimize rssi monitor code

Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

mac80211: add driver RSSI threshold events

mac80211 maintains a running average of the RSSI when a STA
is associated to an AP. Report threshold events to any driver
that has registered callbacks for getting RSSI measurements.

Implement callbacks in mac80211 so that driver can set thresholds.
Add callbacks in mac80211 which is invoked when an RSSI threshold
event occurs.

mac80211: add tracing to rssi_reports api and remove extraneous fn argument
mac80211: scale up rssi thresholds from driver by 16 before storing

Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: use bt handler for 2030 and 135 series devices

For bt combo devices, need to use bt enabled handlers and functions

Reported-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: remove double level temperature indirect call

No need to do double level indirect call after driver split
no functional changes

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: remove indirection for eeprom_query_addr

Not needed since the driver split. Eliminate redundant routine.

Signed-off-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: remove the indirection for iwl_apm_init

Not needed since the driver split.

Signed-off-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: remove the indirection for update_chain_flags

Not needed since the driver split.

Signed-off-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: provide heplers to access the transport ops

This removes the for priv->trans.ops->...

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: remove the indirection for the dma channel num

Not needed since the driver split.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: consolidate the API that sends host commands and move to transport

Now, there are only two functions to send a host command:
* send_cmd that receives a iwl_host_cmd
* send_cmd_pdu that builds the iwl_host_cmd itself and received flags

The flags CMD_ASYNC / CMD_SYNC / CMD_WANT_SKB are not changed by the API
functions.

Kill the unused flags CMD_SIZE_NORMAL / CMD_NO_SKB on the way.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: remove code duplication

Code duplication was needed during the move, not needed any more.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: add an API for TX stop

Tx stop moves to transport layer.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: add an API for RX stop

Rx stop moves to transport layer.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: add an API to free the TX context

Tx free functions move to the transport layer. Unify the functions that deal with tx queues and cmd queue.

Since the CMD queue is not fully allocated, but uses the q->n_bd / q->window trick, the release flow of TX queue and CMD queue was different.
iwlagn_txq_free_tfd receives now the index of the TFD to be freed, which allows to unify the release flow for all the queues.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: remove the CMD_MAPPED flag

It is uneeded since Johannes removed the HUGE flag. The DMA mapping is always held in the same index as the command.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>