aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/ath/ath9k/hw.c
Commit message (Collapse)AuthorAge
* ath9k: skip ->config_pci_powersave() if PCIe port has ASPM disabledStanislaw Gruszka2011-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We receive many bug reports about system hang during suspend/resume when ath9k driver is in use. Adrian Chadd remarked that this problem happens on systems that have ASPM disabled. To do not hit the bug, skip doing ->config_pci_powersave magic if PCIe downstream port device, which ath9k device is connected to, has ASPM disabled. Bug was introduced by: commit 53bc7aa08b48e5cd745f986731cc7dc24eef2a9f Author: Vivek Natarajan <vnatarajan@atheros.com> Date: Mon Apr 5 14:48:04 2010 +0530 ath9k: Add support for newer AR9285 chipsets. Patch should address: https://bugzilla.kernel.org/show_bug.cgi?id=37462 https://bugzilla.kernel.org/show_bug.cgi?id=37082 https://bugzilla.redhat.com/show_bug.cgi?id=697157 however I did not receive confirmation about that, except from Camilo Mesias, whose system stops hang regularly with this patch (but still hangs from time to time, but this is probably some other bug). Tested-by: Camilo Mesias <camilo@mesias.co.uk> Cc: stable@kernel.org # 2.6.35+ Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: validate and fix broken eeprom chainmask settingsFelix Fietkau2011-07-21
| | | | | | | | | | Some devices (e.g. Ubiquiti AirRouter) ship with broken EEPROM chainmask data, which breaks the initial calibration after a hardware reset. To fix this, mask the eeprom chainmask with the chainmask of the chip, and use the chip chainmask if the result is zero. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: remove ar9287 v1.3+ specific hardcoded register hacksFelix Fietkau2011-07-11
| | | | | | | | | Now that the clock rate is initialized properly and SIFS, EIFS, USEC, slot time and ACK timeout are properly calculated by the generic code, the 'async FIFO' register hacks are no longer necessary. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: initialize more timing related registers for half/quarter channelsFelix Fietkau2011-07-11
| | | | | | | | | | Initialize the the clock-to-TSF field of AR_USEC and the SIFS and EIFS time registers based on the clock rate instead of relying on initvals. With those changes, some of the hardcoded AR9287 1.3+ specific overrides can be dropped. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: fix MAC clock rate for AR9287 v1.3+Felix Fietkau2011-07-11
| | | | | | | This chip uses the async FIFO feature and runs the MAC at 117 MHz Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: fix MAC clock for half/quarter rateFelix Fietkau2011-07-11
| | | | | | | Enabling half/quarter rate makes the MAC run at half/quarter clock speed. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: always enable 5 GHz fast clock for AR9280Felix Fietkau2011-07-11
| | | | | | | | All devices support this, but some disable it using an EEPROM flag for some reason. Improves 5 GHz performance on those devices. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: enable support for AR9330Gabor Juhos2011-06-22
| | | | | Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: add external_reset callback to ath9k_platfom_data for AR9330Gabor Juhos2011-06-22
| | | | | | | | | | | | The patch adds a callback to ath9k_platform_data. If the callback is provided by the platform code, then it can be used to hard reset the WMAC device. The callback is required for doing a hard reset of the AR9330 chips to get them working again after a hang. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: enable antenna diversity for AR9330Gabor Juhos2011-06-22
| | | | | Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: enable TX/RX data byte swap for AR9330Gabor Juhos2011-06-22
| | | | | Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: don't enable LDPC for AR9330Gabor Juhos2011-06-22
| | | | | Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: use different BB watchdog timeout value for AR9330Gabor Juhos2011-06-22
| | | | | Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: add AR9330 specific PLL initializationGabor Juhos2011-06-22
| | | | | Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: add MAC revision detection for AR9330Gabor Juhos2011-06-22
| | | | | | | | | | | | | The AR9330 1.0 and 1.1 are using the same revision, thus it is not possible to distinguish the two chips. The platform setup code can distinguish the chips based on the SoC revision. Add a callback function to ath9k_platform_data in order to allow getting the revision number from the platform code. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: define mac version for AR9330Gabor Juhos2011-06-22
| | | | | Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Remove ATH9K_BEACON_PERIOD maskRajkumar Manoharan2011-06-01
| | | | | | | | | | | Earlier beacon_interval is used to hold interval value and some flags (ATH9K_BEACON_ENA &ATH9K_BEACON_PERIOD). So to extract interval ATH9K_BEACON_PERIOD is used. Those flags were completely removed. So masking beacon_interval is not required. Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: disable phy restart on baseband panic caused by RXSMRajkumar Manoharan2011-05-26
| | | | | | | | | | While receiving unsupported rate frame rx state machine gets into a state 0xb and if phy_restart happens in that state, BB would go hang. If RXSM is in 0xb state after first bb panic, ensure to disable the phy_restart. Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Drag the driver to the year 2011Sujith Manoharan2011-05-19
| | | | | | | The Times They Are a-Changin'. Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: enable Antenna diversity for AR9485Mohammed Shafi Shajakhan2011-05-16
| | | | | | | | | | | | read antenna diversity and combining information from the EEPROM. Enable antenna diversity/combining feature only when both LNA diversity and fast diversity are supported Cc: Gabriel Tseng <Gabriel.Tseng@Atheros.com> Cc: Senthilkumar Balasubramanian <Senthilkumar.Balasubramanian@Atheros.com> Tested-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: Add support for btcoexistence in AR9300.Vivek Natarajan2011-04-28
| | | | | Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Merge branch 'master' of ↵John W. Linville2011-04-26
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
| * ath9k_hw: fix stopping rx DMA during resetsFelix Fietkau2011-04-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During PHY errors, the MAC can sometimes fail to enter an idle state on older hardware (before AR9380) after an rx stop has been requested. This typically shows up in the kernel log with messages like these: ath: Could not stop RX, we could be confusing the DMA engine when we start RX up ------------[ cut here ]------------ WARNING: at drivers/net/wireless/ath/ath9k/recv.c:504 ath_stoprecv+0xcc/0xf0 [ath9k]() Call Trace: [<8023f0e8>] dump_stack+0x8/0x34 [<80075050>] warn_slowpath_common+0x78/0xa4 [<80075094>] warn_slowpath_null+0x18/0x24 [<80d66d60>] ath_stoprecv+0xcc/0xf0 [ath9k] [<80d642cc>] ath_set_channel+0xbc/0x270 [ath9k] [<80d65254>] ath_radio_disable+0x4a4/0x7fc [ath9k] When this happens, the state that the MAC enters is easy to identify and does not result in bogus DMA traffic, however to ensure a working state after a channel change, the hardware should still be reset. This patch adds detection for this specific MAC state, after which the above warnings completely disappear in my tests. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@kernel.org Cc: Kyungwan Nam <Kyungwan.Nam@Atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Add power save wrappers and modularize hw_pll handlerSenthil Balasubramanian2011-04-25
| | | | | | | | | | | | | | | | | | | | We should protect hw_pll handler with power save wrappers and also modularize hw_pll handler properly for better readability. Also add a debug message to track chip resets on pll hang condition. Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_hw: Fix incorrect baseband PLL phase shift for AR9485Senthil Balasubramanian2011-04-25
| | | | | | | | | | | | | | | | | | we should program the AR9485 baseband PLL phase shift to 6 and a redundant setting overwrites the correct value. Remove the incorrect and unwnated register setting. Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Fix bug in configuring hw timerVasanthakumar Thiagarajan2011-04-25
| | | | | | | | | | | | | | | | | | Hw next tigger time is configured as current_tsf + (timer_period * 10) which is wrong, it should be current_tsf + timer_period. The wrong hw timer configuration would cause btcoex related issues. Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Fix warnings from -Wunused-but-set-variableSujith Manoharan2011-04-25
| | | | | | | | | | Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_hw: Enable AR9340 supportVasanthakumar Thiagarajan2011-04-25
| | | | | | | | | | | | | | | | AR9340 is a AR9003 family built-in 2x2 wmac of ar934x SOCs. It is single band in ar9341 SOC and dual band in ar9344/ar9342 SOCs. Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_hw: Disable INTR_HOST1_FATAL to avoid interrupt strom with ar9430Vasanthakumar Thiagarajan2011-04-25
| | | | | | | | | | Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_hw: Assign macversion based on devid for built-in wmacVasanthakumar Thiagarajan2011-04-25
| | | | | | | | | | Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_hw: Enable byte Tx/Rx data swap for AR9340Vasanthakumar Thiagarajan2011-04-25
| | | | | | | | | | Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_hw: Don't do ani initialization for AR9340Vasanthakumar Thiagarajan2011-04-25
| | | | | | | | | | Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_hw: Configure pll control register accordingly for AR9340Vasanthakumar Thiagarajan2011-04-25
| | | | | | | | | | Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_hw: Define devid and mac version for AR9340Vasanthakumar Thiagarajan2011-04-25
| | | | | | | | | | Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Implement integer mode for AR9485Vasanthakumar Thiagarajan2011-04-12
| | | | | | | | | | | | | | This fixes random disconnect. Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | Merge branch 'master' of ↵John W. Linville2011-04-07
|\| | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 Conflicts: drivers/net/wireless/rtlwifi/efuse.c drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c net/bluetooth/mgmt.c
| * ath9k: Fix phy info print message with AR9485 chipset.Senthil Balasubramanian2011-04-04
| | | | | | | | | | | | | | | | | | The phy information print during driver init time doesn't show the numeric part of the chip name properly for AR9485. This patch addresses this issue by adding the string to the respective array. Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_hw: remove ath9k_get_channel_edgesMohammed Shafi Shajakhan2011-04-04
| | | | | | | | | | | | | | This function is nowhere used. Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_hw: remove pCap->tx_triglevel_maxFelix Fietkau2011-03-30
| | | | | | | | | | | | | | It has the same purpose (and value) as ah->config.max_txtrig_level Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_hw: remove ATH9K_HW_CAP_ENHANCEDPMFelix Fietkau2011-03-30
| | | | | | | | | | | | | | It is not used anywhere Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_hw: remove pCap->keycache_sizeFelix Fietkau2011-03-30
| | | | | | | | | | | | | | | | | | Similar to the number of tx queue, the number of keycache entries depends on the chip and shouldn't be messed with based on EEPROM data. Remove this field and stick to using AR_KEYTABLE_SIZE Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_hw: remove pCap->reg_capFelix Fietkau2011-03-30
| | | | | | | | | | | | | | It is not used anywhere and seems pointless Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_hw: remove ah->config.ht_enableFelix Fietkau2011-03-30
| | | | | | | | | | | | | | | | It is only used in one place, and the device id check that it's based on can be moved there as well. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_hw: remove pCap->total_queuesFelix Fietkau2011-03-30
| | | | | | | | | | | | | | | | | | | | | | The EEPROM contains a field that can restrict the number of hardware queues, however this is not only useless (all the known chips contain the same number of hardware queues), but also potentially dangerous in case of a misprogrammed EEPROM (could trigger driver crashes), so let's just ignore it completely. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_hw: turn a few big macros into functionsFelix Fietkau2011-03-30
| | | | | | | | | | | | | | | | | | RF_BANK_SETUP, REG_WRITE_RF_ARRAY and REG_WRITE_ARRAY are way too big, so they shouldn't be inlined at every single callsite, especially since they can easily be turned into real functions. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_hw: replace REG_READ+REG_WRITE with REG_RMWFelix Fietkau2011-03-30
| | | | | | | | | | | | | | It's easier to read and it slightly decreases code size Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: fix beacon timer handling issuesFelix Fietkau2011-03-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | AP mode beacon timers in ath9k are configured in milliseconds, which breaks when increasing ATH_BCBUF to 8 instead of 4 (due to rounding errors). Since the hardware timers are actually configured in microseconds, it's better to let the driver use that unit directly. To be able to do that, the beacon interval parameter abuse for passing certain flags needs to be removed. This is easy to do, because those flags are completely unnecessary anyway. ATH9K_BEACON_ENA is ignored, ATH9K_BEACON_RESET_TSF can be replaced with calling ath9k_hw_reset_tsf from the driver directly. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_hw: force rx chainmask to 7 on AR9100Felix Fietkau2011-03-30
| | | | | | | | | | | | | | | | | | | | | | | | | | Most AR9100 devices already have a chainmask of 7 (three antennas), however on the ones that don't (rx and tx chainmask set to 5), problems with IQ mismatch calibration have been observed. This shows up as tx queue hangs (and subsequent hardware resets) if traffic is sent during this type of calibration. Forcing the rx chainmask to 7 fixes the calibration issues with no apparent negative side effects on throughput and stability. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k_hw: enable a BlockAck related fixup specific to AR9100Felix Fietkau2011-03-30
| | | | | | | | | | | | | | Fixes interop issues with aggregation in combination with multi-BSSID Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: add an interface for overriding the value of specific GPIO pinsFelix Fietkau2011-03-30
|/ | | | | | | | | Some devices control antenna settings or other things through GPIO pins of the wireless interface. Add a debugfs interface for changing those and keeping them set across card resets. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
generated by cgit v1.2.2 (git 2.25.0) at 2025-07-31 08:41:22 -0400