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path: root/drivers/net/wireless/ath/ath9k/eeprom.h
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2016-12-15ath9k: define all EEPROM fields in Little Endian formatMartin Blumenstingl1-32/+43
The ar9300_eeprom logic is already using only 8-bit (endian neutral), __le16 and __le32 fields to state explicitly how the values should be interpreted. All other EEPROM implementations (4k, 9287 and def) were using u16 and u32 fields with additional logic to swap the values (read from the original EEPROM) so they match the current CPUs endianness. The EEPROM format defaults to "all values are Little Endian", indicated by the absence of the AR5416_EEPMISC_BIG_ENDIAN in the u8 EEPMISC register. If we detect that the EEPROM indicates Big Endian mode (AR5416_EEPMISC_BIG_ENDIAN is set in the EEPMISC register) then we'll swap the values to convert them into Little Endian. This is done by activating the EEPMISC based logic in ath9k_hw_nvram_swap_data even if AH_NO_EEP_SWAP is set (this makes ath9k behave like the FreeBSD driver, which also does not have a flag to enable swapping based on the AR5416_EEPMISC_BIG_ENDIAN bit). Before this logic was only used to enable swapping when "current CPU endianness != EEPROM endianness". After changing all relevant fields to __le16 and __le32 sparse was used to check that all code which reads any of these fields uses le{16,32}_to_cpu. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-12-15ath9k: consistently use get_eeprom_rev(ah)Martin Blumenstingl1-2/+2
The AR5416_VER_MASK macro does the same as get_eeprom_rev, except that one has to know the actual EEPROM type (and providing a reference to that in a variable named "eep"). Additionally the eeprom_*.c implementations used the same shifting logic multiple times to get the eeprom revision which was also unnecessary duplication of get_eeprom_rev. Also use the AR5416_EEP_VER_MINOR_MASK macro where needed and introduce a similar macro (AR5416_EEP_VER_MAJOR_MASK) for the major version. Finally drop AR9287_EEP_VER_MINOR_MASK since it simply duplicates the already defined AR5416_EEP_VER_MINOR_MASK. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-12-15ath9k: replace eeprom_param EEP_MINOR_REV with get_eeprom_revMartin Blumenstingl1-1/+0
get_eeprom(ah, EEP_MINOR_REV) and get_eeprom_rev(ah) are both doing the same thing: returning the EEPROM revision (12 lowest bits). Make the code consistent by using get_eeprom_rev(ah) everywhere. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-12-15ath9k: Add an eeprom_ops callback for retrieving the eepmisc valueMartin Blumenstingl1-0/+1
This allows deciding if we have to swap the EEPROM data (so it matches the system's native endianness) even if no byte-swapping (swab16, based on the first two bytes in the EEPROM) is needed. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-12-15ath9k: Add a #define for the EEPROM "eepmisc" endianness bitMartin Blumenstingl1-1/+3
This replaces a magic number with a named #define. Additionally it removes two "eeprom format" specific #defines for the "big endianness" bit which are the same on all eeprom formats. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-12-08ath9k: Simplify and fix eeprom endianness swappingMartin Blumenstingl1-0/+3
The three eeprom implementations had quite some duplicate code when it came to endianness swapping. Additionally there was a bug in eeprom_4k and eeprom_9287 which prevented the endianness swapping from working correctly, because the swapping code was guarded within an "if (!ath9k_hw_use_flash(ah))". In eeprom_def this check did not exist, so it seems that eeprom_def was the only implementation where endianness swapping worked. This patch takes the duplicate code and moves it from eeprom_* to eeprom.c. The new code is derived from eeprom_def, while taking into account the specifics from the other implementations. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-12-10ath9k: use 'struct ath_hw *' as the first argument for 'ath9k_hw_nvram_read'Gabor Juhos1-1/+1
The 'ath9k_hw_nvram_read' function takes a 'struct ath_common *' as its first argument. Almost each of its caller has a 'struct ath_hw *' parameter in their argument list, and that is dereferenced in order to get the 'struct ath_common' pointer. Change the first argument of 'ath9k_hw_nvram_read' to be a 'struct ath_hw *', and remove the dereference calls from the callers. Also change the type of the first argument of the ar9300_eeprom_read_{byte,word} functions. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-11ath9k_hw: add 8 points for 5G temp slopRajkumar Manoharan1-0/+1
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-11ath9k_hw: Add AR9565 HW supportSujith Manoharan1-1/+1
Various parts of the code require AR9565 checks, this patch adds them. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-07-17ath9k_hw: clean up AR9003 EEPROM codeFelix Fietkau1-4/+0
- add an inline function for getting the correct modal EEPROM struct - remove unnecessary indirection through ath9k_hw_ar9300_get_eeprom access the relevant fields directly Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-17ath9k: move ath9k_hw_fbin2freq function to eeprom.hGabor Juhos1-0/+8
Both eeprom.c and ar9003_eeprom.c has an indentical 'ath9k_hw_fbin2freq' function. Move the function to a common place and remove the duplicates. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-17ath9k: merge power correction constantsGabor Juhos1-5/+2
The existing constants are used for reduction/increase tx power level on devices with 2x2 and 3x3 chainmask. Both reduction and increase must use the same value, so it makes no sense to use separate constants for them. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-16ath9k: introduce ath9k_hw_get_scaled_power helperGabor Juhos1-0/+5
The computation of the scaled power value in various eeprom files uses identical code. Move that code into a helper function and use that instead of code duplication. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-11ath9k_hw: Read and configure quick drop for AR9003Rajkumar Manoharan1-1/+2
Read and configure quick drop feild from AR9003 eeprom inorder to help with strong signal. This patch also removes obsolate parameters ob, db_stage2, db_stage_3, db_stage4 from the eeprom templates. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-14ath9k: Rename AR9480 into AR9462Rajkumar Manoharan1-1/+1
Renamed to be in sync with Marketing term and to avoid confusion with other chip names. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-11ath9k_hw: remove EEP_REG_1Felix Fietkau1-1/+0
It was previously used for current_rd_ext Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-11ath9k_hw: clean up tx power handlingFelix Fietkau1-3/+4
The code for handling various restrictions concerning regulatory limits, antenna gain, etc. is very convoluted and duplicated across various EEPROM parsing implementations, making it hard to review. This patch partially cleans up the mess by unifying regulatory limit handling in one function and simplifying handling of antenna gain. It also removes unused transmit power scaling arrays from the EEPROM code, which belonged to an unimplemented API that isn't supposed to be in the driver anyway. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-03ath9k_hw: extend GPIO pin select mask for rfkillMohammed Shafi Shajakhan1-6/+1
this extends the bits for rf kill GPIO selection to [7:2] from [4:2] as we use GPIO pin 11 as rfkill for AR9480 and also remove few unused macros Cc: Wilson Tsao <wtsao@qca.qualcomm.com> Cc: "Hu, Russell" <rhu@qca.qualcomm.com> Cc: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-09ath9k_hw: Add dump_eeprom support for AR9003Rajkumar Manoharan1-0/+2
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-19ath9k: Drag the driver to the year 2011Sujith Manoharan1-1/+1
The Times They Are a-Changin'. Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-12ath9k_hw: Fix instable target power control b/w CCK/OFDMRajkumar Manoharan1-1/+5
The problem is that when the attenuation is increased, the rate will start to drop from MCS7 -> MCS6, and finally will see MCS1 -> CCK_11Mbps. When the rate is changed b/w CCK and OFDM, it will use register desired_scale to calculate how much tx gain need to change. The output power with the same tx gain for CCK and OFDM modulated signals are different. This difference is constant for AR9280 but not AR9285/AR9271. It has different PA architecture a constant. So it should be calibrated against this PA characteristic. The driver has to read the calibrated values from EEPROM and set the tx power registers accordingly. Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Acked-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-01-19ath9k_hw: Offload USB eeprom reading to targetSujith Manoharan1-0/+2
For USB devices, reading the EEPROM data can be offloaded to the target. Use multiple register reads to take advantage of this feature to reduce initialization time. Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-12-22ath9k_htc: Fix warning on device removalSujith Manoharan1-2/+0
The commit "ath9k_hw: warn if we cannot change the power to the chip" introduced a new warning to indicate chip powerup failures, but this is not required for devices that have been removed. Handle USB device removal properly by checking for unplugged status. For PCI devices, this warning will still be seen when the card is pulled out, not sure how to check for card removal. Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-12-13ath9k_hw: remove antenna configuration eeprom ops and variablesFelix Fietkau1-4/+0
AR9280 based hardware with 3 antennas and slow antenna diversity has not been seen in the wild and ath9k does not support that form of antenna diversity, so remove the EEPROM ops for it. These EEPROM ops are currently only used for setting the AR_PHY_SWITCH_COM register, which is being done in the EEPROM specific file already. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-12-13ath9k_hw: merge ath9k_hw_get_gain_boundaries_pdadcs between eeprom_def.c and ↵Felix Fietkau1-0/+8
eeprom_4k.c Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-12-13ath9k_hw: clean up duplicate and unnused eeprom related definesFelix Fietkau1-35/+10
AR*_MAX_RATE_POWER => MAX_RATE_POWER AR*_EEPROM_MODAL_SPURS => AR_EEPROM_MODAL_SPURS AR*_OPFLAGS_* => AR5416_OPFLAGS_* ... Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-12-02Merge branch 'master' of ↵John W. Linville1-13/+14
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 Conflicts: drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
2010-12-02ath9k_hw: fix more bitfield related endian issuesFelix Fietkau1-4/+10
A few LNA control related flags were also specified as a bitfields, however for some strange reason they were written in big-endian order this time. Fix this by using flags instead. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-12-02ath9k_hw: fix endian issues with CTLs on AR9003Felix Fietkau1-9/+4
Parsing data using bitfields is messy, because it makes endian handling much harder. AR9002 and earlier got it right, AR9003 got it wrong. This might lead to either using too high or too low tx power values, depending on frequency and eeprom settings. Fix it by getting rid of the CTL related bitfields entirely and use masks instead. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-30ath9k: Add support for Adaptive Power ManagementMohammed Shafi Shajakhan1-0/+1
This feature is to mitigate the problem of certain 3 stream chips that exceed the PCIe power requirements.An EEPROM flag controls which chips have APM enabled which is basically read from miscellaneous configuration element of the EEPROM header. This workaround will reduce power consumption by using 2 Tx chains for Single and Double stream rates (5 GHz only).All self generated frames (regardless of rate) are sent on 2 chains when this feature is enabled(Chip Limitation). Cc: Paul Shaw <paul.shaw@atheros.com> Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Tested-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-15ath9k_hw: extend ath9k_hw_set_txpowerlimit to test channel txpowerFelix Fietkau1-1/+2
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>
2010-09-27ath9k_hw: simplify revision checks for AR9287Felix Fietkau1-1/+1
Since AR9287 v1.0 was never sold (and the initvals removed), its revision checks can be simplified similar to AR9280 Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-24Merge branch 'master' of ↵John W. Linville1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 Conflicts: drivers/net/wireless/ath/ath5k/base.c net/mac80211/main.c
2010-09-16ath9k_hw: remove warning in ath9k_hw_def_get_num_ant_configRajkumar Manoharan1-1/+2
This patch fixes following warning drivers/net/wireless/ath/ath9k/eeprom_def.c: In function 'ath9k_hw_def_get_num_ant_config' drivers/net/wireless/ath/ath9k/eeprom_def.c:1425:47: warning: comparison between 'enum ath9k_hal_freq_band' and 'enum ieee80211_band' Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-07ath9k_hw: Add capability flag for Antenna diversity and combining featureVasanthakumar Thiagarajan1-0/+2
This is enabled only for ar9285. Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-31ath9k_hw: fix parsing of HT40 5 GHz CTLsLuis R. Rodriguez1-1/+1
The 5 GHz CTL indexes were not being read for all hardware devices due to the masking out through the CTL_MODE_M mask being one bit too short. Without this the calibrated regulatory maximum values were not being picked up when devices operate on 5 GHz in HT40 mode. The final output power used for Atheros devices is the minimum between the calibrated CTL values and what CRDA provides. Cc: stable@kernel.org [2.6.27+] Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-13ath9k_htc: load proper firmware for device ID 7015Rajkumar Manoharan1-0/+1
This patch handles the firmware loading properly for device ID 7015. Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-12ath9k_hw: fix antenna diversity on AR9285Felix Fietkau1-1/+1
On AR9285, the antenna switch configuration register uses more than just 16 bits. Because of an arbitrary mask applied to the EEPROM value that stores this configuration, diversity was broken in some cases, leading to a significant degradation in signal strength. Fix this by changing the callback to return a 32 bit value and remove the arbitrary mask. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-14ath9k_hw: add support for parsing PA predistortion related EEPROM fieldsFelix Fietkau1-1/+2
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-03ath9k_hw: Cleanup TX power calculation for AR9287Sujith1-0/+1
* Add a few comments, and move the updation of max_power_level to a helper routine. This is also done by non-4K based chipsets, this will be fixed in a separate patch. * Remove two WARs which are required for old AR5416 chipsets, and are not needed for AR9287. * Fix indentation and make things readable. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-03ath9k_hw: Optimize ath9k_hw_ar9287_set_board_valuesSujith1-0/+1
Rather than doing a series of RMWs, calculate the value to be written to the register in question and do a single REGWRITE. This improves bringup time. This depends on the analog_shiftreg configuration option, which is currently buggy. For AP mode, a delay of 100us has to be the default. For station mode, this knob has to be enabled on a per-case basis, though it is a little unclear on when to enable a delay. This can be fixed later though. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-27ath9k_hw: update EEPROM data structure for AR9280Felix Fietkau1-1/+2
Adds read access for the 5 GHz fast clock flag Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-16ath9k_hw: Implement AR9003 eeprom callbacksSenthil Balasubramanian1-2/+9
Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-16ath9k_hw: restore mac address reading logicLuis R. Rodriguez1-1/+0
Once upon a time the AR_EEPROM_MAC macro was added to let us add a random attribute to the three 4-bytes of MAC addresses entries we read from the EEPROM. This was good while a random high-enough value was used which did not conflict with any of the already existing enum eeprom_param values. With AR9003 support the enums overlap and it means we either increment the random offset or just restore the reading logic to match what the HAL has. I choose to do the later to synchronize the logic on both code bases. This should fix reading the MAC address from the EEPROM on AR9003 hardware. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-16ath9k_hw: rename eep_AR9287_ops to eep_ar9287_opsLuis R. Rodriguez1-1/+1
Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-16ath9k_hw: complete AR9003 calibrationLuis R. Rodriguez1-0/+1
This goes with some new shiny TX IQ calibration that AR9003 hardware family supports. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-16ath9k_hw: the eep_map is used only for AR9280 PCI card ini fixupSenthil Balasubramanian1-7/+0
We can reorganize the code in such a way that eep_map can be removed, which makes the code more clearer. Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com> Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07ath9k: Fix bugs in handling TX powerSenthil Balasubramanian1-2/+3
* Get power table offset from the EEPROM instead of using a hardcoded value of -5 if the EEPROM rev is >= 21. * Add support in the 4k eeprom code for tx power offset in case we have a 4k AR9280 implementation. * Fix tx power accuracy at high powers. Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07ath9k: Advertise midband for AR5416 devicesSenthil Balasubramanian1-0/+1
This has to be done if the EEPROM supports FCC Midband capability. Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07atheros: move bus ops to ath_commonLuis R. Rodriguez1-1/+2
This is the last part to make ath9k hw code core driver agnostic. I believe ath9k_htc can now use use the hw code unmodified. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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