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2011-09-19iwlagn: warn about buggy fw that doesn't set SEQ_RX_FRAMEEmmanuel Grumbach
The way we check if there is host command that should be reclaimed is way too complicated. We should have a clear indication from the fw. The fw is expected to set the SEQ_RX_FRAME bit if the frame was originated by the fw which indicates to the driver that there is no host command to free. Somehow, there seem to have been buggy fw out there, hence the very old comment. This code checks if we have still buggy fw out there. 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>
2011-09-19ath9k: Reset caldata on radio enableRajkumar Manoharan
Not doing so, the caldata continues to retain older history values learned on that channel. It is always safer to start noise floor calibration from the defaults after the assoication. So this patch resets the nf history buffer when none of the STA vifs are associated. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-19ath9k: load noise floor from history after the full chip resetRajkumar Manoharan
Currently during the full reset, the nf calibration is always restarted from the defaults. The noise floor history buffers are never be used again after the scan and ath reset. This patch ensures that nf histories are always be used that helps to improve the signal quality on congested environment Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-19ath9k_hw: Fix magnitude/phase coeff correctionRajkumar Manoharan
Do the magnitude/phase coeff correction only if the outlier is detected. Updating wrong magnitude/phase coeff factor impacts not only tx gain setting but also leads to poor performance in congested networks. In the clear environment the impact is very minimal because the outlier happens very rarely according to the past experiment. It occured less than once every 1000 calibrations. Cc: stable@kernel.org Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-19ath9k_hw: remove ar9100_hw_compute_pll_controlFelix Fietkau
AR913x uses the same PLL register layout as AR9160 and later. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-19ath9k_hw: fix setting the hardware diversity flagFelix Fietkau
ath9k_hw_set_diversity is only called from init.c where it cannot affect the hardware setting because it's cleared on the next reset. Instead of using a PHY op for something that's supposed to be initialized statically, set the register value directly in the INI override function. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-19ath9k_hw: remove dead code in the eeprom opsFelix Fietkau
The eeprom .set_addac function is only necessary for AR9160, remove it from eeprom_4k.c and remove the dummy function from eeprom_9287.c Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-19ath9k_hw: clean up hardware revision checksFelix Fietkau
- AR_SREV_5416_20_OR_LATER is always true, remove it - AR_SREV_9280_20_OR_LATER is always true within eeprom_4k.c and eeprom_9287.c - (AR_SREV_9271 || AR_SREV_9285) is always true in eeprom_4k.c Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-19ath9k: sync the dma buffer after changing the retry flagFelix Fietkau
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-19ath9k: fix setting the IEEE80211_TX_CTL_CLEAR_PS_FILT flagFelix Fietkau
When the driver inserts padding between the 802.11 header and data, it needs to set the hdr variable to the new header location. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-19Revert "ath9k: do not insert padding into tx buffers on AR9380+"John W. Linville
This reverts commit 4245d31347bdc99a608dc1d1cfe64e44aa3d1771.
2011-09-19Merge branch 'for-linville' of git://github.com/lucacoelho/wl12xxJohn W. Linville
2011-09-16ath9k: do not insert padding into tx buffers on AR9380+Felix Fietkau
With the new EDMA descriptor format, a single descriptor can contain up to four buffer pointers. By splitting the buffer into two parts, we can let the hardware add the padding internally instead of using memmove on the skb data. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k: optimize ath_tx_rc_status usageFelix Fietkau
The only flag that needs to be set when ath_tx_rc_status is called with rc_update == false is the IEEE80211_TX_STAT_TX_FILTERED flag. All other data is ignored in that case. This flag can be set from ath_tx_complete_buf instead, so that we can drop a few redundant calls to ath_tx_rc_status and remove the rc_update function parameter Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k: remove a redundant check in ath_tx_form_aggrFelix Fietkau
ath_lookup_legacy now checks all the tx rate flags for MCS vs legacy Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k: optimize ath9k_ps_restoreFelix Fietkau
ath_hw_cycle_counters_update only needs to be called if the power state changes. Most of the time this does not happen, even when ps_usecount goes down to 0. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k_hw: remove the old tx descriptor APIFelix Fietkau
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k: use the new API for setting tx descriptorsFelix Fietkau
With the new API, tx descriptors can be written in one single pass instead of having to re-read and rewrite fields from multiple places. This makes the code easier to read and also slightly improves performance on embedded MIPS hardware. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k_hw: add a new API for setting tx descriptorsFelix Fietkau
Instead of using lots of different functions with long argument lists, pull all the necessary information from one struct. This makes the code easier to read and eliminates the need for copying data between multiple linked descriptors. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k_hw: do not recalculate the descriptor checksum in ar9003_hw_fill_txdescFelix Fietkau
Reduces the number of accesses to uncached descriptor memory. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k: call ath9k_hw_set_desc_link for beacon descriptorsFelix Fietkau
This ensures that only ath9k_hw_set_desc_link needs to recalculate the tx descriptor checksum on AR9380+ Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k: move ath_buf_set_rate to remove a forward declarationFelix Fietkau
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k: reduce the number of functions that access the tx descriptorFelix Fietkau
Makes it easier to clean up the ath9k_hw descriptor API Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k: remove ATH_TX_XRETRY and BUF_XRETRY flagsFelix Fietkau
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k: ensure that rx is not enabled during a resetFelix Fietkau
During a reset, rx buffers are flushed after rx has been disabled. To avoid race conditions, rx needs to stay disabled during the reset, so avoid any calls to ath9k_hw_rxena in that case. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k: make beacon timer initialization more reliableFelix Fietkau
When starting the AP beacon timer, it assumes that the TSF has recently been cleared. Set the SC_OP_TSF_RESET flag to ensure that this is always the case. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k: fix enabling interrupts after a hardware error interruptFelix Fietkau
The interrupt handler increases the interrupt disable refcount, so the tasklet needs to always call ath9k_hw_enable_interrupts. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k: Fix PS wrappers and enabling LEDMohammed Shafi Shajakhan
in ath_pci_resume it seems we are not enabling LED properly, in addition we have a PS wrapper fix for this Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k: enable LED pin for AR946/8x chipsetsMohammed Shafi Shajakhan
now the LED starts working for AR946/8x chipsets Cc: "Balasubramanian, senthilkumar" <senthilb@qca.qualcomm.com> Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k_hw: Do full chip reset on 11A channels for AR9003Rajkumar Manoharan
AR9003 seems to have issues sometimes with fast channel change in 5GHz and this case is handled specifically for AR9280 by doing a full reset. Let's do a full reset for 5GHz channles of AR9380 & for all channels of AR9280 pci chips. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k_hw: move register definitions to header filesSenthil Balasubramanian
Move the register macros to appropriate header files to be in sync with other register definitions and also a single place to refer everything. Signed-off-by: Senthil Balasubramanian <senthilb@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k_hw: Add support for AR946/8x chipsets.Senthil Balasubramanian
This patch adds support for AR946/8x chipets. Signed-off-by: Senthil Balasubramanian <senthilb@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k_hw: Split tx/rx gain table initval handlingSenthil Balasubramanian
Split tx/rx gain table initval hanlding part so readability is better and easy to manage the code. Signed-off-by: Senthil Balasubramanian <senthilb@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k_hw: Add initvals and register definitions for AR946/8x chipsets.Senthil Balasubramanian
Add initvals and register modifications required to support AR946/8x chipsets. Signed-off-by: Senthil Balasubramanian <senthilb@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16Merge branch 'for-linville' of git://github.com/lucacoelho/wl12xxJohn W. Linville
2011-09-14libertas: prioritize usb8388_olpc.bin firmware on OLPC machinesAndres Salomon
Normally, the v9 firmware will be loaded if it's available. However, on OLPC XO-1 machines, the olpc-specific firmware supports extra functionality. This makes the libertas driver attempt to load the custom firmware first if the machine is an OLPC machine; if that fails (or it's not an OLPC machine), fall back to attempting to load the other firmwares. usb8388_olpc.bin is currently found in the linux-firmware repository. Signed-off-by: Andres Salomon <dilinger@queued.net> Acked-by: Dan Williams <dcbw@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-14rt2x00: Use the available helper functions to initialize the WCID tableHelmut Schaa
Use rt2800_config_wcid and rt2800_delete_wcid_attr to initialize the WCID table instead of writing to the registers directly. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-14rt2x00: Forbid aggregation for STAs not programmed into the hwHelmut Schaa
If a STA is not known by the hw (i.e. has no WCID assigned) don't allow aggregation since this might mess up tx status reports and we won't be able to distinguish the reports of multiple WCID-less STAs. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-14rt2x00: Make use of sta_add/remove callbacks in rt2800Helmut Schaa
This allows us to assign a WCID to each STA even for STAs without crypto key. To achieve this search for an unused WCID in the HW WCID table and assign it to the according STA. When configuring a pairwise key for this STA we don't need to write the MAC address and BSSIDX anymore but just update the crypto related fields in the WCID_ATTR table. This has two advantages: 1) Setting a new key for an already available STA (PTK rekeying) is slightly less expensive and should improve performance in situations where a lot of rekeying happens (e.g. a huge number of stations and/or a small rekeying interval) 2) The TXWI now gets a WCID assigned for unencrypted frames which will be reflected in the corresponding tx status report. This should make tx status reports in unencrypted AP mode more reliable as we can distinguish between multiple key-less STAs. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-14rt2x00: Add WCID to HT TX descriptorHelmut Schaa
When sending an unencrypted frame to a STA the driver might want to pass a suitable WCID since we don't have a key index to allow tx status reports to get properly assigned to the correct STA. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-14rt2x00: Add WCID to crypto structHelmut Schaa
When a WCID was already assigned to a STA the key configuration functions need to use the same WCID for configuring the keys. Hence, add the WCID to the crypo configuration structure. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-14rt2x00: Introduce sta_add/remove callbacksHelmut Schaa
This implements a basic sta_add and sta_remove callback. Introduce a new structure rt2x00_sta and ask mac80211 to allocate it as private part of its ieee80211_sta. rt2x00_sta only contains the WCID for now. The sta_add callback allows the driver to assign a WCID to a station that is currently being added. The same wcid is also passed to the sta_remove callback one mac80211 removes this STA. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-14rt2x00: Move bssidx calculation into its own functionHelmut Schaa
This will be used by a later patch. No functional changes. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-14rt2x00: Avoid unnecessary uncachedHelmut Schaa
Reading the TX desciptor words from coherent memory is always uncached and potentially slow. Hence, don't read the TX descriptor prior to writing it since we update all fields anyway. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.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>
2011-09-14rt2x00: Update some TX descriptorHelmut Schaa
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.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>
2011-09-14rt2x00: Remove incorrect led blinkHelmut Schaa
rt2800 devices are not capable of configuring arbitrary LED on/off periods. The LED_CFG register fields ON_PERIOD and OFF_PERIOD are only used by the hw when the LED mode is set to "blink upon TX". Hence, remove the blink callback. This will result in software emulation for LED blinking. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.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>
2011-09-14rt2x00: Add LED_CFG register descriptionHelmut Schaa
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.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>
2011-09-14rt2x00: Minor optimizazion in txdone pathHelmut Schaa
We can save an indirect function call + some instructions for fetching the actual function pointer by passing the driver specific txwi pointer directly from rt2800pci/rt2800usb to rt2800lib instead of using the rt2800_drv_get_txwi callback. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.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>
2011-09-14iwlagn: fix compilation when debug flags is unsetEmmanuel Grumbach
Trivial fixes to allow compilation without warnings when debug compilation flag isn't set. Also fix the compilation when debugfs flag isn't set. Fix a warning: unused priv pointer 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>
2011-09-14iwlagn: remove lines from the wrong placeWey-Yi Guy
Few lines for program bt_ch_announce being place in the wrong place. Remove those. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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