summaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/ath/ath9k/hw.h
Commit message (Collapse)AuthorAgeFilesLines
...
* | ath9k_hw: extend ath9k_hw_set_txpowerlimit to test channel txpowerFelix Fietkau2010-11-151-1/+1
| | | | | | | | | | | | | | | | | | ath9k_hw_set_txpowerlimit gets an extra boolean parameter that - if set - causes the rate txpower table and the regulatory limit to be calculated and stored, without changing hardware registers. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_hw: make ath9k_hw_gettsf32 staticFelix Fietkau2010-11-091-1/+0
|/ | | | | | | It is now only used in hw.c Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: remove enum wireless_mode and its usersFelix Fietkau2010-10-151-13/+2
| | | | | | | | The wireless mode bitfield was only used to detect 2.4 and 5 GHz support, which can be simplified by using ATH9K_HW_CAP_* capabilities. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: add compile time checking for the size of the channel listFelix Fietkau2010-10-111-1/+3
| | | | | | | | This prevents random memory corruption if the number of channels ever gets changed without an update to the internal channel array size. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: move the cycle counter tracking to athFelix Fietkau2010-10-111-2/+0
| | | | | | | | | | Instead of keeping track of wraparound, clear the counters on every access and keep separate deltas for ANI and later survey use. Also moves the function for calculating the 'listen time' for ANI Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: merge ath9k_hw_ani_monitor_old and ath9k_hw_ani_monitor_newFelix Fietkau2010-10-061-7/+1
| | | | | | | | | After the last rounds of cleanup, these functions are now functionally equivalent and can thus be merged. Also get rid of some excessive (and redundant) debug messages. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: remove function pointer abstraction for internal ANI opsFelix Fietkau2010-10-061-10/+1
| | | | | | | | | The code gets more concise and readable when making the new ANI functions fall back to the old ones if ANI v2 is disabled. This also makes further code cleanup easier. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: remove code duplication in phy error counter handlingFelix Fietkau2010-10-061-3/+1
| | | | | | | | | Split out the PHY error counter update from ath9k_hw_ani_monitor_*, reuse it in ath9k_hw_proc_mib_event (merged from ath9k_hw_proc_mib_event_old and ath9k_hw_proc_mib_event_new). Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: clean up ANI state handlingFelix Fietkau2010-10-061-2/+1
| | | | | | | | | | | | | | ANI state is kept per channel, so instead of keeping an array of ANI states with an arbitrary size of 255, move the ANI state into the channel struct. Move some config settings that are not per-channel out of the per-channel struct to save some memory. With those changes, ath9k_ani_restart_old and ath9k_ani_restart_new can be merged into a single function. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: clean up register write bufferingFelix Fietkau2010-10-061-8/+2
| | | | | | | | | | 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>
* ath9k_hw: merge codepaths that access the cycle counter registersFelix Fietkau2010-10-061-0/+2
| | | | | | | | | | | | | The cycle counters are used by ANI to determine the amount of time that the radio spent not receiving or transmitting. They're also used for debugging purposes if the baseband watchdog on AR9003 detects a lockup. In the future, we want to use these counters to determine the medium utilization and export this information via survey. For that, we need to make sure that the counter is only accessed from one place, which also ensures that wraparounds won't occur at inconvenient points in time. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: clean up calibration flagsFelix Fietkau2010-10-061-3/+1
| | | | | | | | | | | | | | The calibration actual calibration flags are only used by the per chip family source files, so it makes more sense to define them in those files instead of globally. That way the code has to test for less flags. Also instead of using a separate callback for testing whether a particular calibration type is supported, simply adjust ah->supp_cals in the calibration init which is called right after the hardware reset, before any of the calibrations are run. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: remove some useless calibration dataFelix Fietkau2010-10-051-1/+0
| | | | | | | | The percal struct and bitmask for the initial DC calibration are not used anywhere, so they can be removed. Signed-off-by: Felix Fietkau <nbd@openwrt.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: keep calibrated noise floor values per channelFelix Fietkau2010-10-051-1/+1
| | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Use common ath key management functionsBruno Randolf2010-09-161-6/+0
| | | | | | | | Use key management functions which have been moved to ath/key.c and remove ath9k copies of these functions and other now unused definitions. Signed-off-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: remove useless hw capability flagsFelix Fietkau2010-09-141-24/+13
| | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: Restore ANI registers to default during partial reset for AR9271Rajkumar Manoharan2010-09-071-0/+1
| | | | | | | | | For AR9271 chips, if partial reset is done while scanning, the cycpwrThr1 will be set to maximum. This causes the degrade in DL throughput. So restore the ANI registers to default during the partial reset. Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: Add functions to get/set antenna diversity configurationVasanthakumar Thiagarajan2010-09-071-0/+10
| | | | | Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: Add capability flag for Antenna diversity and combining featureVasanthakumar Thiagarajan2010-09-071-0/+1
| | | | | | | This is enabled only for ar9285. Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: use AP beacon miss as a trigger for fast recalibrationFelix Fietkau2010-08-161-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When beacons get stuck in AP mode, the most likely cause is interference. Such interference can often go on for a while, and too many consecutive beacon misses can lead to connected clients getting dropped. Since connected clients might not be subjected to the same interference if that happens to be very local, the AP should try to deal with it as good as it can. One way to do this is to trigger an NF calibration with automatic baseband update right after the beacon miss. In my tests with very strong interference, this allowed the AP to continue transmitting beacons after only 2-3 misses, which allows a normal client to stay connected. With some of the newer - really sensitive - chips, the maximum noise floor limit is very low, which can be problematic during very strong interference. To avoid an endless loop of stuck beacons -> nfcal -> periodic calibration -> stuck beacons, the beacon miss event also sets a flag, which allows the calibration code to bypass the chip specific maximum NF value. This flag is automatically cleared, as soon as the first NF median goes back below the limits for all chains. In my tests, this allowed an ath9k AP to survive very strong interference (measured NF: -68, or sometimes even higher) without losing connectivity to its clients. Even under these conditions, I was able to transmit several mbits/s through the interface. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: fix a noise floor calibration related race conditionFelix Fietkau2010-08-041-0/+1
| | | | | | | | | | | | | | On AR5008-AR9002, other forms of calibration must not be started while the noise floor calibration is running, as this can create invalid readings which were sometimes not even recoverable by any further calibration attempts. This patch also ensures that the result of noise floor measurements are processed faster and also allows the result of the initial calibration on reset to make it into the NF history buffer Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: clean up per-channel calibration dataFelix Fietkau2010-08-041-9/+15
| | | | | | | | | | | | | | | | | | | | | | | The noise floor history buffer is currently not kept per channel, which can lead to problems when changing channels from a clean channel to a noisy one. Also when switching from HT20 to HT40, the noise floor history buffer is full of measurements, but none of them contain data for the extension channel, which it needs quite a bit of time to recover from. This patch puts all the per-channel calibration data into a single data structure, and gives the the driver control over whether that is used per-channel or even not used for some channels. For ath9k_htc, I decided to keep this per-channel in order to avoid creating regressions. For ath9k, the data is kept only for the operating channel, which saves some space. ath9k_hw takes care of wiping old data when the operating channel or its channel flags change. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: merge noisefloor load implementationsFelix Fietkau2010-07-121-2/+1
| | | | | | | | | | | | | | | | | AR5008+ and AR9003 currently use two separate implementations of the ath9k_hw_loadnf function. There are three main differences: - PHY registers for AR9003 are different - AR9003 always uses 3 chains, earlier versions are more selective - The AR9003 variant contains a fix for NF load timeouts This patch merges the two implementations into one, storing the register array in the ath_hw struct. The fix for NF load timeouts is not just relevant for AR9003, but also important for earlier hardware, so it's better to just keep one common implementation. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: clean up the noise floor calibration code to reduce code duplicationFelix Fietkau2010-07-021-0/+6
| | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: sanitize noise floor values properly on all chipsFelix Fietkau2010-07-021-5/+9
| | | | | | | | 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>
* ath9k: make ath9k_hw_keysetmac staticJohn W. Linville2010-06-291-1/+0
| | | | | Reported-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: remove unused function ath9k_hw_keyisvalidJohn W. Linville2010-06-291-1/+0
| | | | | Reported-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: add pcieSerDesWrite to disable SERDES ASPM tweaksLuis R. Rodriguez2010-06-231-0/+1
| | | | | | | | | | This can be useful during testing of new ASPM tweaks which often have to be done through the PCI Serializer-Deserializer (SERDES). Cc: Aeolus Yang <aeolus.yang@atheros.com> Cc: Madhan Jaganathan <madhan.jaganathan@atheros.com> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: fix ASPM setting for AR9003Luis R. Rodriguez2010-06-231-0/+6
| | | | | | | | | | | | | The AR_WA register should not be read when in sleep state so add a variable we can stash its value into for when we need to set it. Additionally the AR_WA_D3_TO_L1_DISABLE_REAL (bit 16) needs to be removed. Cc: Aeolus Yang <aeolus.yang@atheros.com> Cc: Madhan Jaganathan <madhan.jaganathan@atheros.com> signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: remove ATH9K_CAP_DSFelix Fietkau2010-06-141-6/+0
| | | | | | | | This capability check is no longer used, so it can be removed along with the now-obsolete ath9k_hw_getcapability function. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: remove ATH9K_CAP_MCAST_KEYSRCHFelix Fietkau2010-06-141-3/+0
| | | | | | | | | The driver always sets this to enabled, but this can be simplified with a small change to ah->sta_id1_defaults instead. This change also removes the now-obsolete ath9k_hw_setcapability function. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: remove ATH9K_CAP_TKIP_SPLITFelix Fietkau2010-06-141-1/+0
| | | | | | | This is only used as a workaround for an issue in one specific hw revision. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: remove ATH9K_CAP_TKIP_MICFelix Fietkau2010-06-141-1/+0
| | | | | | | TKIP MIC support is always enabled anyway. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: remove ATH9K_CAP_TXPOWFelix Fietkau2010-06-141-1/+0
| | | | | | | | replace calls that read this capability with accesses to ath9k_hw's regulatory data. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: remove ATH9K_CAP_CIPHERFelix Fietkau2010-06-141-1/+0
| | | | | | | All of the ciphers that are tested for are always supported Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: add functions for controlling PA predistortion calibrationFelix Fietkau2010-06-141-0/+18
| | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: add support for parsing PA predistortion related EEPROM fieldsFelix Fietkau2010-06-141-0/+1
| | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: remove a useless function for setting the mac addressFelix Fietkau2010-06-141-1/+0
| | | | | | | | | ath9k_hw_setmac() only copies the mac address it is called with into common->macaddr, yet in all call sites, the supplied mac address pointer is already common->macaddr. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: add a debugfs entry for ignoring CCA on the extension channel in HT40Felix Fietkau2010-06-141-1/+1
| | | | | | | | | Debugfs requires a u32 for bool knobs though so we turn the ath9k_hw knob into a u32 as well. 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>
* ath9k: fix extending the rx timestamp with the hardware TSFFelix Fietkau2010-06-141-1/+0
| | | | | | | | | | | | | | | AR5416 and all newer chipsets use a 32 bit rx timestamp, so there is no need to keep the 15 bit timestamp extending logic around. This patch removes ath9k_hw_extend_tsf (replaced by a call to ath9k_hw_gettsf64), and reduces the frequency of TSF reads, which can improve performance in some cases. This change also has the side effect of making rx timestamps more accurate. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: add new ANI implementation for AR9003Luis R. Rodriguez2010-06-141-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds support for ANI for AR9003. The implementation for ANI for AR9003 is slightly different than the one used for the older chipset families. It can technically be used for the older families as well but this is not yet fully tested so we only enable the new ANI for the AR5008, AR9001 and AR9002 families with a module parameter, force_new_ani. The old ANI implementation is left intact. Details of the new ANI implemention: * ANI adjustment logic is now table driven so that each ANI level setting is parameterized. This makes adjustments much more deterministic than the old procedure based logic and allows adjustments to be made incrementally to several parameters per level. * ANI register settings are now relative to INI values; so ANI param zero level == INI value. Appropriate floor and ceiling values are obeyed when adjustments are combined with INI values. * ANI processing is done once per second rather that every 100ms. The poll interval is now a set upon hardware initialization and can be picked up by the core driver. * OFDM error and CCK error processing are made in a round robin fashion rather than allowing all OFDM adjustments to be made before CCK adjustments. * ANI adjusts MRC CCK off in the presence of high CCK errors * When adjusting spur immunity (SI) and OFDM weak signal detection, ANI now sets register values for the extension channel too * When adjusting FIR step (ST), ANI now sets register for FIR step low too * FIR step adjustments now allow for an extra level of immunity for extremely noisy environments * The old Noise immunity setting (NI), which changes coarse low, size desired, etc have been removed. Changing these settings could affect up RIFS RX as well. * CCK weak signal adjustment is no longer used * ANI no longer enables phy error interrupts; in all cases phy hw counting registers are used instead * The phy error count (overflow) interrupts are also no longer used for ANI adjustments. All ANI adjustments are made via the polling routine and no adjustments are possible in the ISR context anymore * A history settings buffer is now correctly used for each channel; channel settings are initialized with the defaults but later changes are restored when returning back to that channel * When scanning, ANI is disabled settings are returned to (INI) defaults. * OFDM phy error thresholds are now 400 & 1000 (errors/second units) for low/high water marks, providing increased stability/hysteresis when changing levels. * Similarly CCK phy error thresholds are now 300 & 600 (errors/second) Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: inform ANI calibration when scanningLuis R. Rodriguez2010-06-141-1/+1
| | | | | | | | | | | The new ANI implementation will use this to skip ANI calibration upon a scan. This cannot be ported to the older ANI implementation unless default ANI values from the ANI are also used upon a scan. This is essentially what one of the things thenew ANI does. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: allow for spliting up ANI operations by familyLuis R. Rodriguez2010-06-141-0/+29
| | | | | | | | | | | | The AR9003 hardware family will use a slightly modified ANI implementation which has not yet been tested on the other hardware families. To allow for this new ANI implementation a few ANI calls need to be abstracted away. This patch just allows for each hardware family to declare their own ANI ops and annotates the current ANI implementation as old. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: move clock definitions from hw.c to hw.hLuis R. Rodriguez2010-06-141-0/+5
| | | | | | | These will be used by the ANI code next. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: Fix async fifo for AR9287Sujith2010-06-031-0/+1
| | | | | | | | | Async fifo is now enabled only for versions 1.3 and above. Enable it in the appropriate place, in the reset routine, instead of process_ini(). Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: Enable TX IQ calibration on AR9003Luis R. Rodriguez2010-06-021-1/+0
| | | | | | | | To enable it we now disable and re-enable the PHY chips after TX IQ calibration. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* wireless: fix several minor description typosWalter Goldens2010-06-021-1/+1
| | | | | Signed-off-by: Walter Goldens <goldenstranger@yahoo.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Enable Short GI in 20 Mhz for ar9287 and later chipsVasanthakumar Thiagarajan2010-06-021-0/+1
| | | | | | | | This patch enables short GI rx at all rates and tx at mcs15 for 20 Mhz channel width also. Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: add support for the AR9003 baseband watchdogLuis R. Rodriguez2010-06-021-1/+8
| | | | | | | | | | | | | | The baseband watchdog will monitor blocks of the baseband through timers and will issue an interrupt when things are detected to be stalled. It is only available on the AR9003 family. Cc: Sam Ng <sam.ng@atheros.com> Cc: Paul Shaw <paul.shaw@atheros.com> Cc: Don Breslin <don.breslin@atheros.com> Cc: Cliff Holden <cliff.holden@atheros.com Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: use the configured power limit for AR9003Felix Fietkau2010-04-271-0/+1
| | | | | | | | | Since the new AR9003 EEPROM code does tune the card for the configured tx power level, we need to fill in the correct power limits in the TPC part of the DMA descriptor. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
OpenPOWER on IntegriCloud