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path: root/drivers/net/wireless/ath
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2013-01-28Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless Conflicts: drivers/net/wireless/ath/ath9k/main.c drivers/net/wireless/iwlwifi/dvm/tx.c
2013-01-22ath9k_hw: remove a useless WARN_ONFelix Fietkau
&ah->curchan->ani can never be NULL Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-22ath9k_hw: reduce struct ar5416AniState sizeFelix Fietkau
It is kept per-channel, so removing unnecessary (or constant) fields from it can save quite a bit of memory. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-22ath9k_hw: remove ath9k_hw_ani_setup and its variablesFelix Fietkau
They are no longer needed for ANI functionality Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-22ath9k_hw: make the initval parameter to ath9k_hw_write_array constFelix Fietkau
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-22ath9k: use ath_tx_process_buffer instead of open-coding similar codeFelix Fietkau
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-22ath9k: clean up processing of pending tx frames on resetFelix Fietkau
Dropping packets from aggregation sessions is usually not a good idea, as it might upset the synchronization of the BlockAck receive window of the remote node. The use of the retry_tx parameter to reset/tx-drain functions also seemed a bit arbitrary. This patch removes this parameter altogether and ensures that pending tx frames are not dropped for no good reason. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-22ath9k: stop rx after txFelix Fietkau
Completing frame transmission can fail if the rx engine is stopped prematurely, as the hw might be waiting for an ACK from the other side. Shutting down tx before rx might make the DMA shutdown more reliable. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-22ath9k_hw: fix RF bank initializationFelix Fietkau
ar900*_init_mode_regs needs to be called before RF banks are allocated, otherwise the storage size of RF banks isn't known. This patch fixes a memory overrun that can show up as a crash on unloading the module. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-22Merge branch 'for-john' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
2013-01-22ath9k: allow setting arbitrary antenna masks on AR9003+Felix Fietkau
Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-22ath9k_hw: fix chain swap setting when setting rx chainmask to 5Felix Fietkau
Chain swapping should only be enabled when the EEPROM chainmask is set to 5, regardless of what the runtime chainmask is. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-22ath9k_hw: fix calibration issues on chainmask that don't include chain 0Felix Fietkau
Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-14ath9k_hw: ar9002_hw_spectral_scan_config() can be staticFengguang Wu
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-14ath9k: disable the tasklet before taking the PCU lockFelix Fietkau
Fixes a reported CPU soft lockup where the tasklet tries to acquire the lock and blocks while ath_prepare_reset (holding the lock) waits for it to complete. Cc: stable@vger.kernel.org Reported-by: Robert Shade <robert.shade@gmail.com> Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-14ath9k: remove sc->rx.rxbuflock to fix a deadlockFelix Fietkau
The commit "ath9k: fix rx flush handling" added a deadlock that happens because ath_rx_tasklet is called in a section that has already taken the rx buffer lock. It seems that the only purpose of the rxbuflock was a band-aid fix to the reset vs rx tasklet race, which has been properly fixed in the commit "ath9k: add a better fix for the rx tasklet vs rx flush race". Now that the fix is in, we can safely remove the lock to avoid such issues. Cc: stable@vger.kernel.org Reported-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-14wireless: make the reg_notifier() voidLuis R. Rodriguez
The reg_notifier()'s return value need not be checked as it is only supposed to do post regulatory work and that should never fail. Any behaviour to regulatory that needs to be considered before cfg80211 does work to a driver should be specified by using the already existing flags, the reg_notifier() just does post processing should it find it needs to. Also make lbs_reg_notifier static. Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com> [move lbs_reg_notifier to not break compile] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-11ath9k_hw: add tx gain tables for newer devicesFelix Fietkau
Improves stability on affected devices and also fixes the Tx IQ calibration related regression on some AR9340 devices such as the TP-Link TL-WDR4300. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-11ath9k: fix spectral scan endless mode on AR9002Simon Wunderlich
There was a copy+paste error in ar9002 for the endless spectral mode, fix that. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-11ath9k: fix rx flush handlingFelix Fietkau
Right now the rx flush is not doing anything useful on AR9003+, as it only works if the buffers in the rx FIFO have not been purged yet, as is done by ath_stoprecv. To fix this, always call ath_flushrecv from within ath_stoprecv before the FIFO is emptied, but still after the hw receive path has been stopped. This ensures that frames received (and ACKed by the hardware) shortly before a reset will be seen by the software, which should improve A-MPDU session stability. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-11ath9k: add a better fix for the rx tasklet vs rx flush raceFelix Fietkau
Ensure that the rx tasklet is no longer running when entering the reset path. Also remove the distinction between flush and no-flush frame processing. If a frame has been received and ACKed by the hardware, the stack needs to see it, so that the BA receive window does not go out of sync. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-11ath9k: remove the WARN_ON that triggers if generating a beacon failsFelix Fietkau
During teardown, mac80211 will not return a new beacon. This is normal and handled properly in the driver, so there's no need to spam the user with a kernel warning here. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-11ath9k: fix double-free bug on beacon generate failureFelix Fietkau
When the next beacon is sent, the ath_buf from the previous run is reused. If getting a new beacon from mac80211 fails, bf->bf_mpdu is not reset, yet the skb is freed, leading to a double-free on the next beacon tx attempt, resulting in a system crash. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-11ath9k: do not link receive buffers during flushFelix Fietkau
On AR9300 the rx FIFO needs to be empty during reset to ensure that no further DMA activity is generated, otherwise it might lead to memory corruption issues. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-11ath9k_htc: Fix memory leakSujith Manoharan
SKBs that are allocated in the HTC layer do not have callbacks registered and hence ended up not being freed, Fix this by freeing them properly in the TX completion routine. Cc: <stable@vger.kernel.org> Reported-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Tested-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-09ath9k: add spectral scan featureSimon Wunderlich
Adds the spectral scan feature for ath9k. AR92xx and AR93xx chips are supported for now. The spectral scan is triggered by configuring a mode through a debugfs control file. Samples can be gathered via another relay debugfs file. Essentially, to try it out: echo chanscan > /sys/kernel/debug/ieee80211/phy0/ath9k/spectral_scan_ctl iw dev wlan0 scan cat /sys/kernel/debug/ieee80211/phy0/ath9k/spectral_scan0 > samples echo disable > /sys/kernel/debug/ieee80211/phy0/ath9k/spectral_scan_ctl This feature is still experimental. The special "chanscan" mode is used to perform spectral scan while mac80211 is scanning for channels. To allow this, sw_scan_start/complete() ops have been added. The patch contains code snippets and information from Zefir Kurtisi and information provided by Adrian Chadd and Felix Fietkau. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-09ath9k_hw: Fix radio programming for AR9550Sujith Manoharan
For AR9550, program the synth value based on the ref. clock. The logic for AR9550 is similar to AR9330, but keep the code separate since changes for AR9330 are required - which would be done later. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-09ath9k_hw: Add TempCompensation feature for AR9550Sujith Manoharan
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-09ath9k_hw: Update initvals for QCA955xSujith Manoharan
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-09ath9k_hw: Use helper routines to simplify ar9003_hw_init_cal()Sujith Manoharan
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-09ath9k_hw: Fix MCI init for AGC calibrationSujith Manoharan
When AGC calibration is to be done, a GPM message with the payload, MCI_GPM_WLAN_CAL_REQ has to be sent. Currently this falls within the IQ-CAL code block which is incorrect. Fix this by using a separate variable to decide when IQ-CAL is to be done separately and call ar9003_mci_init_cal_req correctly. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-09ath9k_hw: Do not enable IQ-CAL for half/quarter ratesSujith Manoharan
IQ calibration doesn't complete and times out for half/quarter rates, so skip it correctly. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-07ath9k_hw: Fix calibration for AR9340Sujith Manoharan
TX_IQ_ON_AGC_CAL should not be enabled for AR9340. TX-IQ calibration is run as part of AGC calibration only for AR9485, AR9462 and AR9565. For the others (AR9300, AR9330, AR9340), TX-IQ cal is done independent of AGC-cal. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-07ath9k_hw: Remove TEMP_COMP_CALSujith Manoharan
This is not enabled for any chip and is unused. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-07ath9k_hw: Enable calibration types in init_cal_settingsSujith Manoharan
Doing this in ath9k_hw_fill_cap_info() is odd and it's cleaner to do this in the init function for calibration. Also, setup the supported calibration type in init_cal_settings. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-07ath9k_hw: Remove AR9485 1.0 macroSujith Manoharan
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-07ath9k: fix column header comments for some initval arraysGabor Juhos
Some 3-column initval arrays have wrong comments. The column of these arrays is indexed by the 'freqIndex' variable in 'ar5008_hw_process_ini' which only depends on the actual band. The 'initvals' tool from 'qca-swiss-army-knife' prints the correct comment lines for these arrays, since commit 'atheros-initvals: fix comments for non-fastclock 3-column tables' however the comments were not refreshed in ath9k. The patch contains no functional changes. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-07carl9170: refactor carl9170_update_beaconChristian Lamparter
This patch moves parts of carl9170_update_beacon into separate subroutines, so the parts become more manageable. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-07carl9170: remove custom NUM_TID and friendsChristian Lamparter
The commit: "mac80211: introduce IEEE80211_NUM_TIDS and use it" introduced a generic NUM_TID definitions for all everyone. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-07carl9170: disable hw crypto for p2p networksChristian Lamparter
While the driver supports HW offload in a single P2P client configuration, it doesn't support HW offload in the concurrent P2P GO+CLIENT configuration. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-07carl9170: don't enable hw crypto offload, if the fw doesn't support itChristian Lamparter
Previously, op_start would set disable_offload always to false, even if it was set to true by the fw parser. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-07carl9170: Only specify interface combinations if more than one interface is ↵Christian Lamparter
possible Otherwise carl9170 triggers a warning in cfg80211, from net/wireless/core.c /* Combinations with just one interface aren't real */ if (WARN_ON(c->max_interfaces < 2)) Note: The number of supported interfaces is set by the carl9170 firmware. The default number of supported interfaces for all current firmwares is 2. Therefore this warning can only be observed with custom firmwares. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-07carl9170: allow P2P_GO interface creation after P2P_CLIENTChristian Lamparter
Janusz Dziedzic reported that after a change in wpa_supplicant ["nl80211: Automatically use concurrent P2P if possible"], carl9170 was no longer able to host a P2P network. This patch tackles the problem by allowing GO interfaces to be registered, long after the P2P_CLIENT interface is brought up. Reported-by: Janusz Dziedzic <janusz.dziedzic@gmail.com> Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-07carl9170: import 1.9.7 firmware headersChristian Lamparter
Import new headers from my firmware branch: <https://github.com/chunkeey/carl9170fw> visit our wiki at: <http://wireless.kernel.org/en/users/Drivers/carl9170.fw> Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-07carl9170: advertise support for TDLSChristian Lamparter
Based on a quick test [ath9k and carl9170], TDLS seemed to be working fine. And while we are at it, let's move the wiphy feature flag set from carl9170_alloc into a single place in carl9170_fw. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-07ath9k_hw: use the devres API for allocationsFelix Fietkau
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Acked-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-07ath9k: use the devres API for allocations/mappingsFelix Fietkau
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Acked-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-04wireless: add new wil6210 802.11ad 60GHz driverVladimir Kondratiev
This adds support for the 60 GHz 802.11ad Wilocity card through a new driver, wil6210. Wilocity implemented the firmware, QCA maintains the device driver. Currently supported: - STA: with security - AP: limited to 1 connected STA, security disabled - Monitor: due to a hardware/firmware limitation either control or non-control frames are monitored Using a STA and AP with this drive, one can assemble a fully functional BSS. Throughput of 1.2Gbps is achieved with iperf. The wil6210 cards have on-board flash memory for the firmware, the cards comes pre-flashed and no firmware download is required. For more details see: http://wireless.kernel.org/en/users/Drivers/wil6210 Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-04ath9k: Fix Kconfig for ATH9K_HTCVladimir Kondratiev
Ath9k consists of 2 different sub-modules: ATH9K and ATH9K_HTC. Both uses common Atheros code from ath.ko and need ATH_COMMON. However, while ATH9K selects ATH_COMMON, ATH9K_HTC does not. As result, if ATH9K_HTC is the only Atheros card selected, compilation fails with unresolved symbols. This patch moves ATH_COMMON selection to the common part for both ATH9K and ATH9K_HTC Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-03mac80211: split TX aggregation stop actionJohannes Berg
When TX aggregation is stopped, there are a few different cases: - connection with the peer was dropped - session stop was requested locally - session stop was requested by the peer - connection was dropped while a session is stopping The behaviour in these cases should be different, if the connection is dropped then the driver should drop all frames, otherwise the frames may continue to be transmitted, aggregated in the case of a locally requested session stop or unaggregated in the case of the peer requesting session stop. Split these different cases so that the driver can act accordingly; however, treat local and remote stop the same way and ask the driver to not send frames as aggregated packets any more. In the case of connection drop, the stop callback the driver is otherwise supposed to call is no longer required. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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