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path: root/drivers/net/wireless/ath/ath5k/desc.c
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* Fix common misspellingsLucas De Marchi2011-03-311-7/+7
| | | | | | Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
* ath5k: Reset cleanup and generic cleanupNick Kossifidis2010-11-301-6/+18
| | | | | | | | | | | | | | | | | | | | | | | * No functional changes * Clean up reset: Introduce init functions for each unit and call them instead of having everything inside ath5k_hw_reset (it's just c/p for now so nothing changes except calling order -I tested it with various cards and it's ok-) * Further cleanups: ofdm_timings belongs to phy.c rate_duration belongs to pcu.c clock functions are general and belong to reset.c (more to follow) * Reorder functions for better organization: We start with helpers and other functions follow in categories, init functions are last Signed-off-by: Nick Kossifidis <mickflemm@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath5k: report PHY error frames only for chips which need itBruno Randolf2010-06-161-1/+2
| | | | | | | | | Only report PHY error frames for ANI on chipsets which do not have PHY error counters in hardware. Signed-off-by: Bruno Randolf <br1@einfach.org> Acked-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath5k: review RX descriptor functionsBruno Randolf2010-06-161-14/+20
| | | | | | | | | | | | | | | | | | | | Reviewed RX descriptor functions against the HAL sources. Some minor changes: - check size before making changes to the descriptor - whitespace - add comments about 5210 timestamps. this needs to be adressed later! - FIFO overrun error only available on 5210 - rs_phyerr should not be OR'ed - clear the whole ath5k_rx_status structure before using, instead of zeroing specific fields. Signed-off-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath5k: take descriptor differences between 5210 and 5211 into accountBruno Randolf2010-06-161-7/+22
| | | | | | | | There are some differences between 5210 and 5211 descriptors which we did not take into account before. Signed-off-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath5k: update 5210/5211 frame typesBruno Randolf2010-06-161-1/+1
| | | | | | | | | | Update 5210 frame types to match the HAL. We have to apply the same bitshift to the constants as we use later. Add 5211 specific frame types. Signed-off-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath5k: review and add comments for descriptorsBruno Randolf2010-06-161-11/+11
| | | | | | | | | | | I carefully reviewed desh.h against the HAL sources. Added comments and made differences between 5210, 5211 and 5212 more clear by adding _521x to the defines which are specific to that chipset. Renamed some defines. No functional changes. Signed-off-by: Bruno Randolf <br1@einfach.org> Acked-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath5k: remove pointless rx error overlay structBruno Randolf2010-06-161-8/+4
| | | | | | | | | ath5k_hw_rx_error was only used once, where we could easily just use ath5k_hw_rx_status as well, so remove it. Signed-off-by: Bruno Randolf <br1@einfach.org> Acked-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath5k: cosmetic changes in ath5k_hw_proc_5212_rx_status()Bruno Randolf2010-06-161-5/+5
| | | | | | | | Just whitespace and indentation. Signed-off-by: Bruno Randolf <br1@einfach.org> Acked-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath5k: use direct function calls for descriptors when possibleBruno Randolf2010-06-161-30/+11
| | | | | | | | | | | | Use direct function calls for ath5k_hw_setup_rx_desc() and ath5k_hw_setup_mrr_tx_desc() instead of a function pointer which always pointed to the same function in the case of ath5k_hw_setup_rx_desc() and which is easily unified in the case of ath5k_hw_setup_mrr_tx_desc(). Also simplify the initialization function for the remaining function pointers. Signed-off-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath5k: remove ATH_TRACE macroBruno Randolf2010-06-021-7/+0
| | | | | | | | Now that we have ftrace, it is not needed any more. Signed-off-by: Bruno Randolf <br1@einfach.org> Acked-by: Nick Kossifidis <mickflemm@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath5k: Adaptive Noise Immunity (ANI) ImplementationBruno Randolf2010-04-071-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is an Adaptive Noise Imunity (ANI) implementation for ath5k. I have looked at both ath9k and HAL sources (they are nearly the same), and even though i have implemented some things differently, the basic algorithm is practically the same, for now. I hope that this can serve as a clean start to improve the algorithm later. This also adds a possibility to manually control ANI settings, right now only thru a debugfs file: * set lowest sensitivity (=highest noise immunity): echo sens-low > /sys/kernel/debug/ath5k/phy0/ani * set highest sensitivity (=lowest noise immunity): echo sens-high > /sys/kernel/debug/ath5k/phy0/ani * automatically control immunity (default): echo ani-on > /sys/kernel/debug/ath5k/phy0/ani * to see the parameters in use and watch them change: cat /sys/kernel/debug/ath5k/phy0/ani Manually setting sensitivity will turn the automatic control off. You can also control each of the five immunity parameters (noise immunity, spur immunity, firstep, ofdm weak signal detection, cck weak signal detection) manually thru the debugfs file. This is tested on AR5414 and nearly doubles the thruput in a noisy 2GHz band. Signed-off-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath5k: fixing retries in ath5k_hw_setup_4word_tx_descAndrew Blaich2010-03-101-1/+1
| | | | | | | | | | | | | | | The rate control algorithm, default is Minstrel for ath5k, determines the number of retries to use for each rate. However, there exists in ath5k_hw_setup_4word_tx_desc (which is called for AR5212 like devices) a set number of retries defined by AR5K_TUNE_HWTXTRIES. The set number of tries is added to the tx_tries0 variable setup by the rate control algorithm. This changes the number of retries the rate control algorithm considers necessary. By removing the AR5K_TUNE_HWTXTRIES from the retry calculation the rate control algorithm is given control over the number of retries. Signed-off-by: Andrew Blaich <ablaich@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath5k: remove ah_magicBruno Randolf2010-03-101-6/+0
| | | | | | | | it's never used. probably a leftover from the old OpenHAL days... Signed-off-by: Bruno Randolf <br1@einfach.org> Acked-by: Nick Kossifidis <mickflemm@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath5k: Fix TX/RX padding for all framesBenoit Papillault2010-03-101-4/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, the padding position is based on ieee80211_get_hdrlen_from_skb(). This is not correct since the HW does padding on RX (and expect the same padding to be present on TX) at the following position : - management : 24 + 6 if 4-addr format - control : 24 + 6 if 4-addr format - data : 24 + 6 if 4-addr format + 2 if QoS - invalid : 24 + 6 if 4-addr format whereas ieee80211_get_hdrlen_from_skb() is : - management : 24 - control : 16 except for ACK/CTS where it is 10 - data : 24 + 6 if 4-addr format + 2 if QoS + 2 if QoS & order - invalid : 24 So, correct frames are not affected : management frames do not use 4-addr format, control frames have no body and invalid frames are ... not valid by definition. However, in order to use monitor interface for debugging purpose, one must be able to send/receive any frames, be it correct or not. Such frames are affected by incorrect padding. Moreover, since padding is added on TX, we need to remove it before calling ieee80211_tx_status. This affect TX packets received by monitor interfaces. It has been tested between an ath5k based card (AR5212) and an ar9170usb based card (netgear WNDA3100) using a frame generator and a monitor interface for each card. v2: Added ath5k_add_padding / ath5k_remove_padding Signed-off-by: Benoit Papillault <benoit.papillault@free.fr> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* atheros: put atheros wireless drivers into ath/Luis R. Rodriguez2009-04-221-0/+696
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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