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2009-11-16ath9k: fix massive rx packet loss issueFelix Fietkau
This patch fixes a regression introduced in "ath9k: avoid the copy skb->cb on every RX'd skb" With that change, the rx status in skb->cb was left uninitialized Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-16rt2x00: Fix BUG on rt2800usb when trying to read eFuse EEPROM.Gertjan van Wingerde
Current tree hits a BUG_ON in rt2x00_regbusy_read, because the eFuse EEPROM reading code of rt2800lib uses the function without the csr_mutex locked. Fix this by locking the csr_mutex for the of the EEPROM reading cycly and using the _lock variants of the register reading and writing functions. This also introcudes the register_read_lock function pointer in the rt2800_ops structure. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-16rt2x00: Log RT/RF chipset information correctly.Gertjan van Wingerde
Some drivers (rt2800* most notably) cannot set the RF and RT chipset in the correct order to have the information logging in rt2x00_set_chip be correct. Fix this by decoupling the setting of the chipset information from the logging of the chipset information so that drivers can determine themselves when all information is set. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-16rt2x00: Initialize rf302x RF values properly for rt2800pci.Gertjan van Wingerde
Ensure RF302x and RF2020 chipsets are handled properly in rt2800lib for the rt3090 chipset. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-16rt2x00: Fix rt2800lib RF chip programming selection.Gertjan van Wingerde
Mirror the legacy Ralink driver with respect to rt2800 RF register programming. Execute rt2800_config_channel_rt3x for all RF2020, RF3020, RF3021 & RF3022 chipsets when operating on RT3070 devices. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-13rt2800lib: fix some typos and punctuation in commentsThadeu Lima de Souza Cascardo
fix some typos and punctuation in comments Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz> [bart: ported the change from the older patch for rt2800usb & rt61pci] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-13ath9k_hw: Fix AR_GPIO_INPUT_EN_VAL_BT_PRIORITY_BB and its shift value in 0x4054Vasanthakumar Thiagarajan
The bit value of AR_GPIO_INPUT_EN_VAL_BT_PRIORITY_BB is wrong, it should be 0x400 and the number of bits to be right shifted is 10. Having this wrong value in 0x4054 sometimes affects bt quality on btcoex environment. Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-13ath9k_hw: Fix possible OOB array indexing in gen_timer_index[] on 64-bitVasanthakumar Thiagarajan
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-13rt2x00: Properly detect Ralink RT3070 devices.Gertjan van Wingerde
Allow rt2800usb to properly detect RT307X based devices, and set the appropriate chipset values. Signed-off-by: Gertjan van Wingede <gwingerde@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11rt2x00: Fix typo in rf programming of rt2800lib.Gertjan van Wingerde
Fix a type in rt2800_config_channel_rt3x. The second write to RF register 2 should be to RF register 3. This is confirmed by the legacy Ralink code. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11rt2x00: fix some typos and punctuation in commentsThadeu Lima de Souza Cascardo
fix some typos and punctuation in comments Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11at76c50x-usb: Supply additional parameters to at76_start_monitor scan requestJason Andryuk
For my Linksys WUSB11 at76c503-i3861 device, scanning fails without probe_delay, min_channel_time, and max_channel_time specified for the scan request. These values were found by checking scan requests from the at76_usb driver. Signed-off-by: Jason Andryuk <jandryuk@gmail.com> Acked-by: Kalle Valo <kalle.valo@iki.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11at76c50x-usb: Remove mac2str and replace with %pM format specifier.Jason Andryuk
Signed-off-by: Jason Andryuk <jandryuk@gmail.com> Acked-by: Kalle Valo <kalle.valo@iki.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11rt2x00: Update copyright statements.Gertjan van Wingerde
As mentioned on the linux-wireless mailing list, the current copyright statements in the rt2x00 are meaningless, as the rt2x00 project is not even a formal legal entity. Therefore it is better to replace the existing copyright statements with copyright statements for the people that actually wrote the code. Note: Updated to the best of my knowledge with respect to who contributed considerable amounts of code. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> CC: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11rt2500usb: remove dead link tuning codeBartlomiej Zolnierkiewicz
Link tuning code from the legacy rt2570 driver turned out to be harmful and got disabled by the commit d06193f ("rt2x00: Disable link tuning in rt2500usb") in August 2008. There is no reason to keep this dead code any longer so remove it (it can still be retrieved from the git history if necessary). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11rt2800usb: add eFuse EEPROM supportBartlomiej Zolnierkiewicz
It is needed for at least RT3070 chip. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11rt2800: add eFuse EEPROM support code to rt2800libBartlomiej Zolnierkiewicz
eFuse EEPROM is used also by USB chips (i.e. RT3070) so move the needed code from rt2800pci to rt2800lib. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11rt2800usb: fix RX descriptor namingBartlomiej Zolnierkiewicz
Rename RXD_W0_* defines to RXINFO_W0_* ones to match naming used for TX descriptor and by the vendor driver. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11rt2800: unify rt2800*_probe_hw_mode()Bartlomiej Zolnierkiewicz
Add rf_vals tables and rt2800_probe_hw_mode() to rt2800lib. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11rt2800: prepare for rt2800*_probe_hw_mode() unificationBartlomiej Zolnierkiewicz
Enclose interface specific code in rt2800[pci,usb]_probe_hw_mode() with rt2x00_intf_is_[pci,usb]() checks. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11rt2800usb: reorganize code in rt2800usb_probe_hw_mode()Bartlomiej Zolnierkiewicz
Move hw_mode information initialization code block before HT information initialization one to match the ordering used by rt2800pci's rt2800pci_probe_hw_mode(). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11rt2800pci: add missing RF values to rf_vals tableBartlomiej Zolnierkiewicz
rt2800pci's rf_vals[] copy was missing values for some channels. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11rt2800: unify EEPROM support codeBartlomiej Zolnierkiewicz
Add rt2800_validate_eeprom() and rt2800_init_eeprom() to rt2800lib. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11rt2800: prepare for unification of EEPROM support codeBartlomiej Zolnierkiewicz
* Factor out common code from rt2800[pci,usb]_validate_eeprom() to rt2800_validate_eeprom(). * Fix interface specific comment in rt2800[pci,usb]_validate_eeprom(). * Enclose interface specific code in rt2800[pci,usb]_init_eeprom() with rt2x00_intf_is_[pci,usb]() checks. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11rt2x00: Remove deprecated ieee80211_rx_status->qual usageIvo van Doorn
ieee80211_rx_status->qual has been marked deprecated. This allows us to remove several functions and fields which were used to calculate a reasonable value for it. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11rt2x00: Add dynamic detection of eFuse EEPROM in rt2800pci.Gertjan van Wingerde
Instead of assuming that all rt3090 devices will have an eFuse EEPROM, do as the legacy Ralink driver, and detect at run-time whether an eFuse EEPROM is present. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath9k_common: clarify and correct jumbogram processingLuis R. Rodriguez
Jumbograms are frames put together linked together through more than one descriptor. For example ath9k_htc will use this to send from the target a large frame split up into 2 or more segments. The driver then would be in charge of putting the frame back together. When jumbograms are constructed the rx_stats->rs_more will bet set and rx_stats->rs_status will not have any valid content as the actual status will only be avialable at the end of the chained descriptors. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath9k_common: remove ath9k_compute_qual()Luis R. Rodriguez
This is now deprecated and unused within mac80211, so time to remove it as otherwise we'd be doing some unecessary computations for nothing. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath9k_common: add new module to share 802.11n driver helpersLuis R. Rodriguez
ath9k and ath9k_htc share a lot of common hardware characteristics. They only differ in that ath9k_htc works with a target CPU and ath9k works directly with the hardware. ath9k_htc will do *some* things in the firmware, but a lot of others on the host. The common 802.11n hardware code is already shared through the ath9k_hw module. Common helpers amongst all Atheros drivers can use the ath module, this includes ath5k and ar9170 as users. But there is some common driver specific helpers which are not exactly hardware code which ath9k and ath9k_htc can share. We'll be using ath9k_common for this to avoid bloating the ath module and the common 802.11n hardware module ath9k_hw. We start by sharing skb pre and post processing in preparation for a hand off to mac80211. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath9k: move RX skb post processing to a helperLuis R. Rodriguez
Use a helper for the RX skb post processing, ath9k_rx_skb_postprocess(). Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath5k: use the common->keymapLuis R. Rodriguez
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath9k: move driver keymap, keymax and splitmic to commonLuis R. Rodriguez
This will make sharing code easier between ath9k and ath9k_htc. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath9k: rename ath_rx_prepare() to ath9k_rx_skb_preprocess()Luis R. Rodriguez
And change the return value to something more obvious. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath9k: move the max rx buffer size check to ath9k_rx_accept()Luis R. Rodriguez
While at it flip the order, seems easier to read and also add some better description as to why we do this check. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath5k: remove double cache alignment, ath_rxbuf_alloc() already does itLuis R. Rodriguez
ath5k is using the (csz - 1) twice as ath_rxbuf_alloc() already allocates and moves skb->data accordingly. Remove the extra (csz -1). Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath: move the rx bufsize to common to share with ath5k/ath9kLuis R. Rodriguez
This will also be used by ath9k_htc. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath9k: move the rx_stats->rs_datalen check to ath9k_rx_accept()Luis R. Rodriguez
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath9k: avoid the copy skb->cb on every RX'd skbLuis R. Rodriguez
The skb->cb (control buffer, 48 bytes) is available to the skb upon skb allocation. You can fill it up imediately after skb allocation. ath9k was copying onto the skb->cb the data from the processed skb for mac80211 from a stack struct ieee80211_rx_status structure. This is unnecessary, instead use the skb->cb for the rx status immediately after the skb becomes available and DMA synched. Additionally, avoid the copy of the skb->cb also for virtual wiphys as skb_copy() will copy over the skb->cb for us as well. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath9k: move rssi processing into a helperLuis R. Rodriguez
This moves all the RX processing of RSSI into a helper, ath_rx_prepare(). ath_rx_prepare() should now be really easy to read and follow. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath9k: move qual processing into a helperLuis R. Rodriguez
This moves the qual computing into a small helper, ath9k_compute_qual() Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath9k: move rate descriptor reading into a helperLuis R. Rodriguez
ath9k_process_rate() now does all the rx status processing to read the rate the hardware passed and translate it to whatever mac80211 wants. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath9k: remove temp variable ratecode from ath_rx_prepare()Luis R. Rodriguez
Its just a distraction when reading the code, instead use the rx_stats->rs_rate directly. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath9k: move RX check code into helper ath9k_rx_accept()Luis R. Rodriguez
This does sanity checking on the skb and RX status descriptor prior to processing. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath9k: use the ieee80211_hw to get to an sband on ath_rx_prepare()Luis R. Rodriguez
No need to use the private driver structure to get to an sband. This will make it easier to share this code with ath9k_htc. With the sc gone we can now just pass the common structure to ath_rx_prepare(). Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath9k: move struct ath_ani to common areaLuis R. Rodriguez
This can be shared between ath9k and ath9k_htc. It will also help with sharing routine helpers on the RX path. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath9k_hw: move ath_extend_tsf() to hw code to share as ath9k_hw_extend_tsf()Luis R. Rodriguez
This will be shared between ath9k and ath9k_htc. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath9k: do not pass the entire descriptor to ath_rx_prepare()Luis R. Rodriguez
Its not needed, so just pass the hardware RX status. We'll be simplfying ath_rx_prepare() with code we can share between ath9k and ath9k_htc. This will help make that code easier to read and manage. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath9k: handle low buffer space for virtual wiphysLuis R. Rodriguez
ath9k virtual wiphys all share the same internal buffer space for TX but they do not share the mac80211 skb queues. When ath9k detects it is running low on buffer space to TX it tells mac80211 to stop sending it skbs its way but it always does this only for the primary wiphy. This means mac80211 won't know its best to avoid sending ath9k more skbs on a separate virtual wiphy. The same issue is present for reliving the skb queue. Since ath9k does not keep track of which virtual wiphy is hammering on TX silence all wiphy's TX when we're low on buffer space. When we're free on buffer space only bother informing the virtual wiphy which is active that we have free buffers. Cc: Jouni.Malinen <Jouni.Malinen@atheros.com> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath9k: use the right hw on ath_tx_setup_buffer() for HTLuis R. Rodriguez
When using virtual wiphys the base sc->hw was being used, the correct hw is passed along the caller already so just use that. Cc: Jouni.Malinen <Jouni.Malinen@atheros.com> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11ath9k: use correct hw for tx aggregation TX completionLuis R. Rodriguez
When ath9k virtual wiphys are used the sc->hw will not always represent the active hw, instead we need to get it from the skb->cb private driver area. This ensures the right hw is used to find a sta for the TX'd skb. Cc: Jouni.Malinen <Jouni.Malinen@atheros.com> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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