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path: root/drivers/net/wireless/ath/ath9k/init.c
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* Merge git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next ↵John W. Linville2011-08-03
|\ | | | | | | into for-davem
| * ath9k: initialize tx chainmask before testing channel tx power valuesFelix Fietkau2011-08-01
| | | | | | | | | | | | | | | | | | With an uninitialized chainmask, the per-channel power will only contain the power limits for a single chain instead of the combined tx power. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | Merge branch 'master' of ↵John W. Linville2011-07-22
|\| | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
| * ath9k: Fix sparse warningsRajkumar Manoharan2011-07-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | drivers/net/wireless/ath/ath9k/init.c:199:21: warning: context imbalance in 'ath9k_reg_rmw' - different lock contexts for basic block drivers/net/wireless/ath/ath9k/xmit.c:1175:31: warning: context imbalance in 'ath_drain_txq_list' - unexpected unlock drivers/net/wireless/ath/ath9k/xmit.c:2047:23: warning: context imbalance in 'ath_tx_process_buffer' - unexpected unlock drivers/net/wireless/ath/ath9k/ar9003_eeprom.c:3041:24: warning: cast to restricted __le32 Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | Merge branch 'master' of ↵John W. Linville2011-06-30
|\| | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
| * ath9k: move few descriptor macros to ath9k.hMohammed Shafi Shajakhan2011-06-29
| | | | | | | | | | Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | Merge branch 'master' of ↵John W. Linville2011-06-24
|\| | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem Conflicts: drivers/net/wireless/rtlwifi/pci.c include/linux/netlink.h
| * 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: use correct max_streams for AR9330Gabor Juhos2011-06-22
| | | | | | | | | | | | | | The AR9330 is a single stream chip. 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>
* | net: remove mm.h inclusion from netdevice.hAlexey Dobriyan2011-06-21
|/ | | | | | | | | | | | | | | | | Remove linux/mm.h inclusion from netdevice.h -- it's unused (I've checked manually). To prevent mm.h inclusion via other channels also extract "enum dma_data_direction" definition into separate header. This tiny piece is what gluing netdevice.h with mm.h via "netdevice.h => dmaengine.h => dma-mapping.h => scatterlist.h => mm.h". Removal of mm.h from scatterlist.h was tried and was found not feasible on most archs, so the link was cutoff earlier. Hope people are OK with tiny include file. Note, that mm_types.h is still dragged in, but it is a separate story. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ath9k: Add a debug entry to start/stop ANIMohammed Shafi Shajakhan2011-06-01
| | | | | | | this helps the user to start/stop ANI dynamically. Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@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: cleanup hw pll work handlerSenthil Balasubramanian2011-04-25
| | | | | | | | | There is no reason why pll work handler should be part of xmit file. move it to main.c so that reading hw check routines are all in the same place. Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: Get AHB clock information from ath9k_platform_dataVasanthakumar Thiagarajan2011-04-25
| | | | | | | | Add a bool in ath9k_platform_data to pass AHB clock speed information. Driver needs this to configure PLL on some SOCs. Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> 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: add a new register op for read-mask-writeFelix Fietkau2011-03-30
| | | | | | | | Reduces the number of calls to register ops. On MIPS this reduces the ath9k_hw binary size from 321k down to 310k Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: embed the ath_ops callbacks in the ath_hw structFelix Fietkau2011-03-30
| | | | | | | | | With this change, loading the address to a register read/write function costs only one pointer dereference instead of two. On MIPS this reduces ath9k_hw binary size from 326k down to 321k. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Support RSN IBSSJouni Malinen2011-03-30
| | | | | | | | | | Add support for using RSN IBSS with ath9k. For now, this uses software crypto for group addressed frames in RSN IBSS, but that may be optimized in the future by extending the key cache design to support per-STA RX GTK. Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: add support for overriding LED pin and GPIO settings from platform dataFelix Fietkau2011-03-30
| | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: add support for overriding the MAC address through platform dataFelix Fietkau2011-03-30
| | | | | | | | On some devices the correct MAC address is not in the EEPROM data, but stored somewhere else. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: use generic mac80211 LED blinking codeFelix Fietkau2011-02-28
| | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6John W. Linville2011-02-18
|\ | | | | | | | | | | Conflicts: drivers/bluetooth/ath3k.c drivers/bluetooth/btusb.c
| * ath9k: Fix ath9k prevents CPU to enter C3 statesMohammed Shafi Shajakhan2011-02-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The DMA latency issue is observed only in Intel pinetrail platforms but in the driver we had a default PM-QOS value of 55. This caused unnecessary power consumption and battery drain in other platforms. Remove the pm-qos thing in the driver code and address the throughput issue in Intel pinetrail platfroms in user space using any one of the scripts in below links: http://www.kernel.org/pub/linux/kernel/people/mcgrof/scripts/cpudmalatency.c http://johannes.sipsolutions.net/files/netlatency.c.txt More details can be found in the following bugzilla link: https://bugzilla.kernel.org/show_bug.cgi?id=27532 This reverts the following commits: 98c316e348bedffa730e6f1e4baeb8a3c3e0f28b 4dc3530df7c0428b41c00399a7ee8c929406d181 10598c124ecabbbfd7522f74de19b8f7d52a1bee Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | Merge branch 'master' of ↵John W. Linville2011-01-28
|\| | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 Conflicts: drivers/net/wireless/ath/ath9k/init.c
| * ath9k: Fix power save usage count imbalance on deinitRajkumar Manoharan2011-01-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While unloading the driver, the ps_usecount is incremented before configuring gpio registers in deinit_device. But it is failed to restore the ps_usecount after that. The problem is that the chip is forcibly moved to FULL SLEEP by radio_disable when mac80211 is reporting as idle though ps_usecount is not zero. This patch retores ps_usecount properly and ensures that the chip is always moved to full sleep only if ps usage count is zero which also helps in debugging deadbeef on multivif case. And also fixes the following warning. ath: DMA failed to stop in 10 ms AR_CR=0xdeadbeef AR_DIAG_SW=0xdeadbeef 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:536 ath_stoprecv+0xf4/0x100 [ath9k]() Cc: stable@kernel.org Cc: Paul Stewart <pstew@google.com> Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * ath9k: fix race conditions when stop deviceStanislaw Gruszka2011-01-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | We do not kill any scheduled tasklets when stopping device, that may cause usage of resources after free. Moreover we enable interrupts in tasklet function, so we could potentially end with interrupts enabled when driver is not ready to receive them. I think patch should fix Ben's kernel crash from: http://marc.info/?l=linux-wireless&m=129438358921501&w=2 Cc: stable@kernel.org Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: fold struct ath_wiphy into struct ath_softcFelix Fietkau2011-01-28
| | | | | | | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: remove support for virtual wiphysFelix Fietkau2011-01-28
| | | | | | | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Restart xmit logic in xmit watchdog.Ben Greear2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The system can get into a state where the xmit queue is stopped, but there are no packets pending, so the queue will not be restarted. Add logic to the xmit watchdog to attempt to restart the xmit logic if this situation is detected. Example 'dmesg' output: ath: txq: f4e723e0 axq_qnum: 2, mac80211_qnum: 2 axq_link: f4e996c8 pending frames: 1 axq_acq empty: 1 stopped: 0 axq_depth: 0 Attempting to restart tx logic. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Keep track of stations for debugfs.Ben Greear2011-01-21
| | | | | | | | | | | | | | | | | | | | The stations hold the ath_node, which holds the tid and other xmit logic structures. In order to debug stuck xmit logic, we need a way to print out the tid state for the stations. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Initialize ah->hwBen Greear2011-01-21
|/ | | | | | | Previous code left it NULL. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: qualify global modparam_nohwcrypt variableJohn W. Linville2011-01-05
| | | | Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Revert "ath9k: Parse DTIM period from mac80211"Mohammed Shafi Shajakhan2011-01-04
| | | | | | | | | | | | | | | This reverts commit 0ce3bcfc84900a64347b0fe1140229bd81314008. Event though with the above commit we obtain the configured DTIM period from the AP rather than always hardcoding it to '1', this seems to cause problems under the following scenarios: * Preventing association with broken AP's * Adds latency in roaming So its better to always use the safe value of '1' for dtim period Cc: Jouni Malinen <Jouni.Malinen@Atheros.com> Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Reset keycache on resumeMohammed Shafi Shajakhan2010-12-22
| | | | | | | | | | | | | | It looks like some hardware registers are left into undefined state after suspend/resume. At minimum, this can cause odd issues related to key cache and hardware trying to encrypt/decrypt frames unexpectedly. This seems to happen even when there is no keys configured, i.e., hardware can end up touching TX frames just based of invalid key cache context even if the driver is not asking a specific entry to be used. In addition, RX can likely be affected. This patch fixes this issue. Signed-off-by: Jouni Malinen <Jouni.Malinen@Atheros.com> Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Fix warnings on card removalRajkumar Manoharan2010-12-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The recently added warning message on power change failure is not needed on device removal. ath: Failed to wakeup in 500us ------------[ cut here ]------------ WARNING: at drivers/net/wireless/ath/ath9k/hw.c:1618 ath9k_hw_setpower+0x61f/0x630 [ath9k_hw]() Hardware name: 64756D6 Pid: 540, comm: kworker/u:3 Not tainted 2.6.37-rc6-wl #37 Call Trace: [<ffffffff810501aa>] warn_slowpath_common+0x7a/0xb0 [<ffffffffa056e280>] ? ath9k_iowrite32+0x0/0x90 [ath9k] [<ffffffff810501f5>] warn_slowpath_null+0x15/0x20 [<ffffffffa05226ef>] ath9k_hw_setpower+0x61f/0x630 [ath9k_hw] [<ffffffffa05700e5>] ath9k_ps_wakeup+0x85/0xd0 [ath9k] [<ffffffffa0570685>] ath9k_configure_filter+0x25/0x80 [ath9k] [<ffffffffa04dde43>] ieee80211_configure_filter+0x133/0x190 [mac80211] [<ffffffffa04ee502>] ieee80211_do_stop+0x132/0x540 [mac80211] [<ffffffff813466ff>] ? _raw_spin_unlock_bh+0x1f/0x30 [<ffffffff812b6923>] ? dev_deactivate+0x1c3/0x1e0 [<ffffffffa04ee925>] ieee80211_stop+0x15/0x20 [mac80211] [<ffffffff8129d1b6>] __dev_close+0x56/0x90 Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Properly initialize channel table for 2GHzMohammed Shafi Shajakhan2010-12-20
| | | | | | | | | | ath9k channel table for 2Ghz does not seems to initialize the 'band' parameter.Though it does not seems to cause any visible issue it looks odd when we initialize the 'band' parameter for 5Ghz channel table while not so for 2Ghz. Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Make PM-QOS value as user configurableMohammed Shafi Shajakhan2010-12-15
| | | | | | | | | | | | | | | This patch allows the pm-qos value to be user configurable by making it as a module parameter.This will help our customers to configure the pm-qos value according to the effect in throughput due to the DMA latency problem which was observed in Intel Pinetrail platforms. The tested value of '55' will be filled as the default pm-qos-value incase the user does not specifies pm-qos value as a module parameter. example usage: sudo modprobe ath9k pmqos=65 Cc: Senthilkumar Balasubramanian <Senthilkumar.Balasubramanian@Atheros.com> Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Parse DTIM period from mac80211Mohammed Shafi Shajakhan2010-12-07
| | | | | | | | | | | | | | | With the current save power save implementation we assume a dtim period of 1.This value is assigned based on a sanity check in the driver eventhough we had not parsed it from mac80211.This patch obtains the actual DTIM period from AP by parsing it from mac80211.Yet for handling multicast traffic we may still have it as fixed rather than parsing it from mac80211 .This does not breaks power save or anything as the sleep duration is currently fixed in the driver.This patch may serve to improve power save in the future by using dtim period for sleep duration and using correct dtim period adhoc mode. Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Disable TX STBC for AR9485Vasanthakumar Thiagarajan2010-12-07
| | | | | Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath: Convert ath_print to ath_dbgJoe Perches2010-12-07
| | | | | | | | | | | Remove ath/debug.h and the includes of these files. Coalesce long formats. Correct a few misspellings and missing "\n"s from these logging messages. Remove unnecessary trailing space before a newline. Remove ARRAY_SIZE casts, use printf type %zu Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath: Convert ath_print(.., ATH_DBG_FATAL to ath_errJoe Perches2010-12-07
| | | | | | | | So these errors are always emitted at KERN_ERR level. Remove ARRAY_SIZE casts, use printf type %zu Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Merge branch 'master' of ↵John W. Linville2010-12-02
|\ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 Conflicts: drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
| * ath9k/carl9170: advertise P2PJohannes Berg2010-11-29
| | | | | | | | | | | | | | | | | | | | With some upcoming changes we'd like to use the interface types for P2P capability tests. Enable them now so that when we add those tests in wpa_supplicant, nothing will break. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * ath9k: use per-device struct for pm_qos_* operationsGabor Juhos2010-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ath9k driver uses a shared pm_qos_request_list structure for all devices. This causes the following warning if more than one device is present in the system: WARNING: at kernel/pm_qos_params.c:234 ath9k_init_device+0x5e8/0x6b0() pm_qos_add_request() called for already added request Modules linked in: Call Trace: [<802b1cdc>] dump_stack+0x8/0x34 [<8007dd90>] warn_slowpath_common+0x78/0xa4 [<8007de44>] warn_slowpath_fmt+0x2c/0x38 [<801b0828>] ath9k_init_device+0x5e8/0x6b0 [<801bc508>] ath_pci_probe+0x2dc/0x39c [<80176254>] pci_device_probe+0x64/0xa4 [<8019471c>] driver_probe_device+0xbc/0x188 [<80194854>] __driver_attach+0x6c/0xa4 [<80193e20>] bus_for_each_dev+0x60/0xb0 [<80193580>] bus_add_driver+0xcc/0x268 [<80194c08>] driver_register+0xe0/0x198 [<801764e0>] __pci_register_driver+0x50/0xe0 [<80365f48>] ath9k_init+0x3c/0x6c [<8006050c>] do_one_initcall+0xfc/0x1d8 [<80355340>] kernel_init+0xd4/0x174 [<800639a4>] kernel_thread_helper+0x10/0x18 ---[ end trace 5345fc6f870564a6 ]--- This patch fixes that warning by using a separate pm_qos_request_list sructure for each device. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Move debugfs under ieee80211/[phyname]/ath9k/Ben Greear2010-12-02
| | | | | | | | | | | | | | | | | | This fixes debugfs problems when a phy is renamed, and is able to remove a bit of code that is no longer needed. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Reintroduce modparam to enable btcoexVasanthakumar Thiagarajan2010-11-29
| | | | | | | | | | | | | | | | | | | | It is not ideal to enable btcoex based on subsys id as it is not unique, they are so random. It is also a pain keeping all of them in a table to enable btcoex for a particular hw. Going back to the old idea. Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | Merge branch 'master' of ↵John W. Linville2010-11-24
|\| | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
| * ath9k: Remove pm_qos request after hw unregister.Vivek Natarajan2010-11-16
| | | | | | | | | | | | | | | | | | | | Update pm_qos before removing it in deinit_device to prevent this warning: pm_qos_update_request() called for unknown object. Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * ath9k: Fix a DMA latency issue for Intel Pinetrail platforms.Vivek Natarajan2010-11-08
| | | | | | | | | | | | | | | | | | | | Throughput was severely affected in Intel Pinetrail platforms because of a DMA problem in C3 state. This patch fixes this issue. Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com> CC: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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