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path: root/drivers/net/wireless/ath/ath9k/ar9002_phy.c
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2022-12-22wifi: ath9k: remove most hidden macro dependencies on ahWenli Looi
Adds an explicit _ah parameter to most macros that previously had a hidden dependency on ah. This makes the code more compliant with the style guide. This change does not appear to affect the final binary. Signed-off-by: Wenli Looi <wlooi@ucalgary.ca> Acked-by: Toke Høiland-Jørgensen <toke@toke.dk> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/c8369317-cf84-f0e3-fe8-9b6e22e43a6a@ucalgary.ca
2022-07-08ath9k: remove unexpected words "the" in commentsJiang Jian
there is unexpected word "the" in comments need to remove Signed-off-by: Jiang Jian <jiangjian@cdjrlc.com> Acked-by: Toke Høiland-Jørgensen <toke@toke.dk> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20220621080240.42198-1-jiangjian@cdjrlc.com
2020-08-14ath9k: Use fallthrough pseudo-keywordGustavo A. R. Silva
Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200727193520.GA832@embeddedor
2018-11-05ath9k: ar9002_phy: mark expected switch fall-throughsGustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Addresses-Coverity-ID: 1056532 ("Missing break in switch") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-13ath9k: mark expected switch fall-throughsGustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-19ath9k_hw: fix spectral scan on AR9285 and newerFelix Fietkau
The register layout of AR_PHY_SPECTRAL_SCAN has changed, only AR9280 uses the old layout Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-04-15ath9k: ar5008_hw_cmn_spur_mitigate: add missing mask_m & mask_p initialisationOleksij Rempel
by moving common code to ar5008_hw_cmn_spur_mitigate i forgot to move mask_m & mask_p initialisation. This coused a performance regression on ar9281. Fixes: f911085ffa88 ("ath9k: split ar5008_hw_spur_mitigate and reuse common code in ar9002_hw_spur_mitigate.") Reported-by: Gustav Frederiksen <lkml2017@openmailbox.org> Tested-by: Gustav Frederiksen <lkml2017@openmailbox.org> Cc: <stable@vger.kernel.org> # 4.2+ Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-05-26ath9k: split ar5008_hw_spur_mitigate and reuse common code in ↵Oleksij Rempel
ar9002_hw_spur_mitigate. [ar5008 and ar9002]_hw_spur_mitigate have big portion of identical code. This patch will move common part of ar5008_hw_spur_mitigate to ar5008_hw_cmn_spur_mitigate and reuse it in ar9002_hw_spur_mitigate. As noticed by Joe Perches I reuse ar9002_hw_spur_mitigate (const) version of declarations for pilot_mask_reg and chan_mask_reg. There should be no other difference with original code. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2014-11-11ath9k: For AR9271 chipsets, set count = 0 for endless samples.Oleksij Rempel
not sure why. Initially provided by Ashish Patro <patro@cs.wisc.edu> Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-12-18ath9k_hw: simplify spur channel handlingFelix Fietkau
Remove ah->config.spurmode and ah->config.spurchans, always use EEPROM data. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-18ath9k: add TX99 supportLuis R. Rodriguez
TX99 support enables Specific Absorption Rate (SAR) testing. SAR is the unit of measurement for the amount of radio frequency(RF) absorbed by the body when using a wireless device. The RF exposure limits used are expressed in the terms of SAR, which is a measure of the electric and magnetic field strength and power density for transmitters operating at frequencies from 300 kHz to 100 GHz. Regulatory bodies around the world require that wireless device be evaluated to meet the RF exposure limits set forth in the governmental SAR regulations. In the examples below, for more bit rate options see the iw TX bitrate setting documentation: http://wireless.kernel.org/en/users/Documentation/iw#Modifying_transmit_bitrates Example usage: iw phy phy0 interface add moni0 type monitor ip link set dev moni0 up iw dev moni0 set channel 36 HT40+ iw set bitrates mcs-5 4 echo 10 > /sys/kernel/debug/ieee80211/phy0/ath9k/tx99_power echo 1 > /sys/kernel/debug/ieee80211/phy0/ath9k/tx99 Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26ath9k: Fix NF calibration for single stream cardsSujith Manoharan
Rather than using the chip ID to read only chain-0 CCA registers and avoid reading chain-1, use the RX chainmask instead. There are some 1-stream PCI devices based on AR9287 such as TL-WN751ND. Improper NF calibration might result in DMA errors/timeouts. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26ath9k: Add support for AR9565 v1.0.1 LNA diversitySujith Manoharan
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09ath9k: Fix build failureSujith Manoharan
Make sure that CONFIG_ATH9K_BTCOEX_SUPPORT is used for the WLAN/BT RX diversity hooks. Reported by the kernel build testing backend. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05ath9k: Program HW for WB195 diversitySujith Manoharan
The MC_GAIN_CTL/CCK_DETECT registers have to be programmed with the correct configuration values if WLAN/BT RX diversity is enabled. Add this and also take care of the BTCOEX mode when fast diversity is enabled/disabled. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> 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>
2013-01-11ath9k: 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>
2013-01-09ath9k: 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>
2013-01-07ath9k_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>
2012-04-12ath9k: remove dead codeZefir Kurtisi
Clean up some orphaned code lines containing * unused variables (not referenced / write-only) * non-implemented function prototypes Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-11ath9k_hw: add a missing delay for an analog registerFelix Fietkau
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>
2011-07-11ath9k_hw: set 5 GHz half/quarter channels on AR9002 using fractional modeFelix Fietkau
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>
2011-07-11ath9k_hw: remove hardcoded PLL overrides for AR9280Felix Fietkau
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>
2011-05-19ath9k: Drag the driver to the year 2011Sujith Manoharan
The Times They Are a-Changin'. Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-16ath9k_hw: define antenna diversity groupMohammed Shafi Shajakhan
AR9285 belongs to diversity group 0 and AR9485 belongs to diversity group 2. Based on the diversity group we configure certain antenna diversity paramaters such as lna1_lna2_delta and fast diversity bias values. For AR9485 we have some gain table parameter which selects the gain table 0/1 for main and alternate antenna Cc: Gabriel Tseng <Gabriel.Tseng@Atheros.com> Cc: Senthilkumar Balasubramanian <Senthilkumar.Balasubramanian@Atheros.com> Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-16ath9k_hw: make antenna diversity modules chip specificMohammed Shafi Shajakhan
this is necessary to support Antenna diversity and combining in new chip sets such as AR9485, previously Antenna diversity support is available only in AR9285 Cc: Gabriel Tseng <Gabriel.Tseng@Atheros.com> Cc: Senthilkumar Balasubramanian <Senthilkumar.Balasubramanian@Atheros.com> Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-01-04ath9k: fix spur mitigation no-spur case for AR9002Brian Prodoehl
For the AR9002, the spur frequency read from the EEPROM is mangled before being compared against AR_NO_SPUR. This results in the driver trying to set up the spur mitigation for bogus spurs, rather than cleanly breaking out. Signed-off-by: Brian Prodoehl <bprodoehl@nomadio.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-22ath9k: Use static constJoe Perches
Using static const generally increases object text and decreases data size. It also generally decreases overall object size. text data bss dec hex filename 11161 56 2136 13353 3429 drivers/net/wireless/ath/ath9k/ar9003_paprd.o.new 11167 56 2136 13359 342f drivers/net/wireless/ath/ath9k/ar9003_paprd.o.old 15428 56 3056 18540 486c drivers/net/wireless/ath/ath9k/eeprom_4k.o.old 15451 56 3056 18563 4883 drivers/net/wireless/ath/ath9k/eeprom_4k.o.new 14087 56 2560 16703 413f drivers/net/wireless/ath/ath9k/eeprom_9287.o.old 14036 56 2560 16652 410c drivers/net/wireless/ath/ath9k/eeprom_9287.o.new 10041 56 2384 12481 30c1 drivers/net/wireless/ath/ath9k/ani.o.new 10088 56 2384 12528 30f0 drivers/net/wireless/ath/ath9k/ani.o.old 9316 1580 2304 13200 3390 drivers/net/wireless/ath/ath9k/htc_drv_init.o.new 9316 1580 2304 13200 3390 drivers/net/wireless/ath/ath9k/htc_drv_init.o.old 16483 56 3432 19971 4e03 drivers/net/wireless/ath/ath9k/ar9003_phy.o.new 16517 56 3432 20005 4e25 drivers/net/wireless/ath/ath9k/ar9003_phy.o.old 18221 104 2960 21285 5325 drivers/net/wireless/ath/ath9k/rc.o.old 18203 104 2960 21267 5313 drivers/net/wireless/ath/ath9k/rc.o.new 19985 56 4288 24329 5f09 drivers/net/wireless/ath/ath9k/eeprom_def.o.new 20040 56 4288 24384 5f40 drivers/net/wireless/ath/ath9k/eeprom_def.o.old 23997 56 4984 29037 716d drivers/net/wireless/ath/ath9k/ar5008_phy.o.old 23846 56 4984 28886 70d6 drivers/net/wireless/ath/ath9k/ar5008_phy.o.new 24285 56 3184 27525 6b85 drivers/net/wireless/ath/ath9k/ar9003_eeprom.o.old 24101 56 3184 27341 6acd drivers/net/wireless/ath/ath9k/ar9003_eeprom.o.new 6834 56 1032 7922 1ef2 drivers/net/wireless/ath/ath9k/ar9002_phy.o.old 6780 56 1032 7868 1ebc drivers/net/wireless/ath/ath9k/ar9002_phy.o.new 36211 64 8624 44899 af63 drivers/net/wireless/ath/ath9k/hw.o.new 36401 64 8624 45089 b021 drivers/net/wireless/ath/ath9k/hw.o.old 9281 56 1496 10833 2a51 drivers/net/wireless/ath/ath9k/ar9003_calib.o.old 9150 56 1496 10702 29ce drivers/net/wireless/ath/ath9k/ar9003_calib.o.new Use ARRAY_SIZE instead of a magic number. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-15bitops: Provide generic sign_extend32 functionAndreas Herrmann
This patch moves code out from wireless drivers where two different functions are defined in three code locations for the same purpose and provides a common function to sign extend a 32-bit value. Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-10-06ath9k_hw: clean up register write bufferingFelix Fietkau
Throughout the code, DISABLE_REGWRITE_BUFFER is always called right after REGWRITE_BUFFER_FLUSH. Since that's unlikely to change any time soon, that makes keeping those ops separate rather pointless, as it only increases code size and line number counts. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-07ath9k_hw: Add functions to get/set antenna diversity configurationVasanthakumar Thiagarajan
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-26ath9k_hw: fix invalid extension channel noisefloor readings in HT20Felix Fietkau
When the hardware is configured in HT20 mode, noise floor readings for the extension channel often return invalid values, which keep the values in the NF history buffer at the hardware-specific maximum limit. Fix this by discarding the extension channel values when in HT20 mode. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-02ath9k_hw: clean up the noise floor calibration code to reduce code duplicationFelix Fietkau
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-02ath9k_hw: sanitize noise floor values properly on all chipsFelix Fietkau
This refactors the noise floor range checks to make them generic, and adds proper ranges for each supported chip type. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-27ath9k_hw: fix fast clock handling for 5GHz channelsFelix Fietkau
Combine multiple checks that were supposed to check for the same conditions, but didn't. Always enable fast PLL clock on AR9280 2.0 Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-16ath9k_hw: Use buffered register writesSujith
This patch adds macros at certain places which could be optimized for multiple register writes. The performance of ath9k_htc improves considerably, especially reducing the latency involved in a scan run. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-16ath9k_hw: Split out the function for reading the noise floorFelix Fietkau
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-16ath9k_hw: add common channel select helpers for ar900[23]Luis R. Rodriguez
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-16ath9k_hw: add a private callback for PLL control computationLuis R. Rodriguez
The PLL control computation used to program the AR_RTC_PLL_CONTROL register varies between our harware so just add a private callback for it. AR9003 will use its own callback. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-16ath9k_hw: Move some RF ops to the private callbacksLuis R. Rodriguez
The PHY split is easier done in a few steps. First move the RF ops to the private ops and rename them accordingly. We split PHY stuff up first for the AR5008 and AR9002 families. There are some callbacks that AR9002 share with the AR5008 familiy so we set those first, if AR9002 has some different callbacks it will override them upon hardware init. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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