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path: root/drivers/net/wireless/ath/ath6kl/cfg80211.c
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* | ath6kl: make sure WLAN power save is enabled during suspendChilam Ng2011-11-111-0/+8
| | | | | | | | | | | | | | | | | | | | Power save is enabled during ath6kl init. But when user space disables power save, the system will go into suspend with power save disabled. The ath6kl driver will now explicitly enable power save prior to entering suspend and restore its previous setting upon resume Signed-off-by: Chilam Ng <chilamng@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* | ath6kl: Enable force foreground scan in connected stateVasanthakumar Thiagarajan2011-11-111-1/+5
| | | | | | | | | | | | | | | | | | This was disabled beacause there was a network stall issue when scan is issued. This issue does not happen with the new firmware (3.1.1.609), enable it back. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* | cfg80211/mac80211: allow management TX to not wait for ACKJohannes Berg2011-11-091-1/+2
|/ | | | | | | | | | | | | | For probe responses it can be useful to not wait for ACK to avoid retransmissions if the station that sent the probe is already on the next channel, so allow userspace to request not caring about the ACK with a new nl80211 flag. Since mac80211 needs to be updated for the new function prototype anyway implement it right away -- it's just a few lines of code. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath6kl: fixup merge damage in ath6kl_mgmt_txJohn W. Linville2011-10-111-1/+1
| | | | | | | | | CC [M] drivers/net/wireless/ath/ath6kl/cfg80211.o drivers/net/wireless/ath/ath6kl/cfg80211.c:1838:2: warning: initialization from incompatible pointer type Caused by commit e9f935e3e8dc0bddd0df6d148165d95925422502... Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath6kl: silence "invalid rate" warningKalle Valo2011-09-281-1/+3
| | | | | | | | | | | | | | | | For some reason firmware is sending invalid rates when we try to query current bitrate from ath6kl_get_station() and a warning is issued: [ 3810.415720] ath6kl: invalid rate: 1935633515 [ 3811.105493] ath6kl: invalid rate: 1935633515 [ 3811.556063] ath6kl: invalid rate: 1935633515 As the warning happens way too often, convert the warning to a debug message once we have a proper fix. But to make it easy to follow how often the problem appears, add a debugfs to print various statistics about workarounds and make this issue the first WAR. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Fix disconnect event reportingVasanthakumar Thiagarajan2011-09-231-11/+9
| | | | | | | | | | | | | Driver does not report disconnect event properly when in connecting state, this leads to issues failures in starting reconnection. Send a disconnect command to target when a disconnect event is received with reason code other than 3 (DISCONNECT_CMD - disconnect request from host) to make the frimware stop trying to connect even after giving disconnect event. There will be one more disconnect event for this disconnect command with reason code DISCONNECT_CMD which will be notified to cfg80211. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Export beacon interval and DTIM period through STA infoJouni Malinen2011-09-221-0/+16
| | | | | | | | | | Now that we allow the first Beacon frame after each connection to be processed at the host, we can figure out the DTIM period and expose it with Beacon interval through STA info BSS parameters to user space. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Update BSS information after connectionJouni Malinen2011-09-221-0/+2
| | | | | | | | | | | Since we may end up using a dummy BSS entry when roaming, allow one Beacon frame -based bssinfo from the current BSS to be processed prior to starting to filter all bssinfo events. This allows cfg80211 BSS table to be filled with proper data in the roaming case where the full Beacon data may not have been present at the time of roamed event. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Remove the unused node table implementationJouni Malinen2011-09-221-52/+0
| | | | | | | | | | Now that the scan results are reported directly to the cfg80211 BSS table there is no need for maintaining this internal node table implementation for scan results. Remove the definitions and node table functions. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Fix BSS update on roamingJouni Malinen2011-09-221-85/+56
| | | | | | | | | | | | | | | | This fixes the BSS "update" just before the connected or roamed event. The previous implementation was completely broken: it forced a hardcoded signal strength and IEs from Association _Request_ frame instead of any Beacon information. This broke various things, including PMKSA caching. The current workaround for creating a dummy BSS entry before the roamed event is not exactly ideal, but that is quite a bit better than the previous state. As a future improvement, cfg80211 could potentially be extended to allow this type of use or ath6kl could delay sending the roamed event before receiving a BSS info event. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Fix static WEP configuration in AP modeJouni Malinen2011-09-191-1/+15
| | | | | | | | | | Configuration of the WEP keys needs to be delayed until the AP mode has been properly started at the target. Partial support for delaying the WEP key configuration was already in place in the driver, but the actual part of deciding when to do this was missing. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Set the sme_state to disconnected in disconnect() callbackVasanthakumar Thiagarajan2011-09-161-0/+2
| | | | | | | | | After a successful completion of disconnect() driver needs to set it's sme_state to SME_DISCONNECTED to be in sync with cfg80211 state. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Remove auth type fall back in auto authentication modeVasanthakumar Thiagarajan2011-09-161-62/+12
| | | | | | | | | | Target already tries with different authentication mechanism when authentication type is configured to NL80211_AUTHTYPE_AUTOMATIC. Remove this piece of code from driver. Having this code in driver even affects auto + WEP authentication in some cases. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Allow enabling of P2P supportJouni Malinen2011-09-061-0/+12
| | | | | | | | | For now, use a module parameter (ath6kl_p2p) to allow P2P support to be enabled. This is needed since there is no mechanism for enabling the P2P mode more dynamically for a single netdev. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Allow AP mode to be configuredJouni Malinen2011-09-061-1/+4
| | | | | Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* athk6l: Fix channel list processing in scan requestsJouni Malinen2011-09-051-4/+10
| | | | | | | | | | | | | | | Limit the length of the channel list to WMI_MAX_CHANNELS to avoid rejection of the request in wmi.c. Since there is not really much point in using a specific list of more than 32 channels, drop the channel list if more channels are specified and scan all channels. Fix cfg80211 scan API use: ar->scan_req must be set only if returning success from scan() handler. The previous version would result in use of freed memory and likely kernel panic should the scan request fail to be sent to the target. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: add testmode supportKalle Valo2011-09-011-0/+2
| | | | | | | This is port from the staging version of ath6kl. The interface to user space is exactly same. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Return error from wmi.c instead of -EIO in ath6kl_cfg80211_scanJouni Malinen2011-08-311-9/+9
| | | | | Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Include P2P IE(s) in GO Probe Response depending on requestJouni Malinen2011-08-311-3/+93
| | | | | | | | | P2P has special rules on when to include P2P IE(s) in Probe Response frame based on the Probe Request frame. Handle P2P IE(s) separately to follow these rules. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Fix default key installation in AP modeEdward Lu2011-08-311-2/+11
| | | | | | Signed-off-by: Edward Lu <elu@qca.qualcomm.com> Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Fix a typo in ath6k contextEdward Lu2011-08-311-6/+7
| | | | | | Signed-off-by: Edward Lu <elu@qca.qualcomm.com> Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Add support for new P2P iftypes in mode changesJouni Malinen2011-08-311-2/+10
| | | | | Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Advertise supported mgmt_stypesJouni Malinen2011-08-311-0/+24
| | | | | Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Report received Probe Request frames to cfg80211Jouni Malinen2011-08-311-0/+19
| | | | | Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Support channel set request for startscan commandEdward Lu2011-08-311-1/+21
| | | | | | Signed-off-by: Edward Lu <elu@qca.qualcomm.com> Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Use set_appie command to add Probe Request IEsJouni Malinen2011-08-311-0/+11
| | | | | Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Implement mgmt_txJouni Malinen2011-08-311-0/+24
| | | | | Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Implement remain_on_channel and cancel_remain_on_channelJouni Malinen2011-08-311-0/+33
| | | | | Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Use change_station() to authorize/unauthorize STAsJouni Malinen2011-08-311-0/+20
| | | | | Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Delay initial group key setup in AP modeJouni Malinen2011-08-311-1/+30
| | | | | | | | | | The target is not ready to accept addkey commands until the connect event has been delivered, so delay these operations for the initial GTK. In addition, properly set interface connected and mark netdev ready when the AP mode setup has been completed. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Add functionality for starting AP modeJouni Malinen2011-08-311-0/+179
| | | | | | | | | Use cfg80211 add/del_beacon callbacks for starting/stopping AP mode and set_beacon to update AP configuration (mainly, to update Beacon and Probe Response IEs). Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: implement suspend supportKalle Valo2011-08-311-0/+14
| | | | | | | | For now this is implemented so that if host supports power is kept in the chip. If that's not supported, an error is returned and sdio stack will remove the device during suspend. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Check sme state before delivering disconnect event to cfg80211Raja Mani2011-08-311-1/+1
| | | | | | | | | | In some random cases, the firmware is sending two disconnect event to the host. In the current model, both diconnect events are passed to cfg80211 without checking local sme state machine, which is screwing cfg80211 layer state. Signed-off-by: Raja Mani <rmani@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Avoid finding bss presence in cfg80211 scan listRaja Mani2011-08-311-21/+0
| | | | | | | | | | | Connect event handler function is always reporting BSS info to CFG80211 layer first and then followed by connect event is passed. Before these steps, BSS presence is retrieved from CFG80211 layer, but it is not used. Hence, removing that part. Signed-off-by: Raja Mani <rmani@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Use cfg80211_inform_bss instead of cfg80211_inform_bss_frameJouni Malinen2011-08-311-27/+17
| | | | | | | | | There is no point in generating a bogus Beacon frame for cfg80211_inform_bss_frame when cfg80211_inform_bss can be used instead. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Fix crash during the connection processRaja Mani2011-08-091-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sometimes, the network manager is failing to connect to the AP due to the below kernel crash message. The reason behind this, after issuing the connect command to the chip, the chip is sending disconnect event and then immediately one connect event to the host in some random cases. The host driver resets all states (including cfg80211 state machine) when it receives disconnect event from the chip. But, still the host driver reports the next received connect event to cfg80211, at that time cfg80211 SME state would have been in IDLE state, which was causing the below kernel crash. Now, host driver's sme state machine is checked every time before delivering connect event to cfg80211 WARNING: at net/wireless/sme.c:517 cfg80211_connect_result+0x10d/0x120() [..] Call Trace: [<c0145732>] warn_slowpath_common+0x72/0xa0 [<c05d676d>] ? cfg80211_connect_result+0x10d/0x120 [<c05d676d>] ? cfg80211_connect_result+0x10d/0x120 [<c0145782>] warn_slowpath_null+0x22/0x30 [<c05d676d>] cfg80211_connect_result+0x10d/0x120 [<f83ff497>] ath6kl_cfg80211_connect_event+0x427/0x4f0 [ath6kl] [<c035d26a>] ? put_dec+0x2a/0xa0 [<c035d645>] ? number+0x365/0x380 [<c0154675>] ? mod_timer+0x135/0x260 [<c035e00e>] ? format_decode+0x2fe/0x370 [<c01263c8>] ? default_spin_lock_flags+0x8/0x10 [<c05fd91f>] ? _raw_spin_lock_irqsave+0x2f/0x50 [<c0146032>] ? console_unlock+0x172/0x1c0 [<f8402659>] ath6kl_connect_event+0x89/0x400 [ath6kl] [<f840826e>] ath6kl_wmi_control_rx+0x98e/0x1d60 [ath6kl] [<c01335b5>] ? __wake_up+0x45/0x60 [<f84053aa>] ath6kl_rx+0x56a/0x770 [ath6kl] [<c04d0242>] ? mmc_release_host+0x22/0x40 [<c04d9329>] ? sdio_release_host+0x19/0x30 [<f840a27a>] ? ath6kl_sdio_read_write_sync+0x7a/0xc0 [ath6kl] [<f83f82b1>] do_rx_completion+0x41/0x50 [ath6kl] [<f83faa6a>] htc_rxmsg_pending_handler+0x6ba/0xbd0 [ath6kl] [<f8404bb0>] ? ath6kl_tx_data_cleanup+0x30/0x30 [ath6kl] [<f840a1c0>] ? ath6kl_sdio_irq_handler+0x30/0x70 [ath6kl] [<f83f7cd5>] ath6kldev_intr_bh_handler+0x2a5/0x630 [ath6kl] [<f840a1c0>] ath6kl_sdio_irq_handler+0x30/0x70 [ath6kl] [<c04d97c7>] sdio_irq_thread+0xc7/0x2d0 [<c013aeb0>] ? default_wake_function+0x10/0x20 [<c012fc98>] ? __wake_up_common+0x48/0x70 [<c04d9700>] ? sdio_claim_irq+0x200/0x200 [<c0163854>] kthread+0x74/0x80 [<c01637e0>] ? kthread_worker_fn+0x160/0x160 [<c0604c06>] kernel_thread_helper+0x6/0x10 Signed-off-by: Raja Mani <rmani@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Cleanup void * in ath6kl_cfg80211_scan_node()Vasanthakumar Thiagarajan2011-08-091-2/+1
| | | | | Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Use ath6kl_cfg80211_scan_node() directly instead of function pointerVasanthakumar Thiagarajan2011-08-091-3/+2
| | | | | Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Remove ath6kl_wmi_iterate_nodes()Vasanthakumar Thiagarajan2011-08-091-2/+2
| | | | | | | Use wlan_iterate_nodes() directly. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Pass only the needed scan_table to ath6kl_wmi_iterate_nodes()Vasanthakumar Thiagarajan2011-08-091-1/+1
| | | | | Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: fix crash when interface is closed but scan is ongoingKalle Valo2011-08-091-18/+23
| | | | | | | | | | | | | | | | | When ath6kl module was removed while a scan was ongoing the driver would crash in ath6kl_cfg80211_scan_complete_event(). Fix the function not to iterate nodes when the scan is aborted. The nodes are already freed when the module is being unloaded. This patch removes the null check entirely as the wmi structure is not accessed anymore during module unload. Also fix a bug where the status was checked as a bitfield with '&' operator. But it's not a bitfield, just a regular error code. This is a port of my patch from ath6kl staging with the same title. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: fix atomicity in ath6kl_cfg80211_scan_node()Kalle Valo2011-08-091-1/+2
| | | | | | | | ath6kl_cfg80211_scan_node() was calling cfg80211_inform_bss_frame() with CFP_KERNEL but the function is executed with a spin lock taken. This is wrong and the function must use GFP_ATOMIC instead. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: don't force foreground scan when connectedKalle Valo2011-08-091-5/+1
| | | | | | | | | | | | | | In my setup data transfer stalls when there's data transmission during scan. After some testing I found out that using background scan when connected to makes the problem go away. This is more like a workaround than a proper fix, but as the stall is so severe the workaround is justified. With a dual band card this increases scan time when connected from 1.9s to 4.4s. When not connected the scan time is not affected and is the same 1.9s. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* ath6kl: Use bit field macros to maintain wlan enabled and disabled statusRaja Mani2011-08-091-1/+1
| | | | | Signed-off-by: Raja Mani <rmani@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
* Add ath6kl cleaned up driverKalle Valo2011-08-091-0/+1538
Last May we started working on cleaning up ath6kl driver which is currently in staging. The work has happened in a separate ath6kl-cleanup tree: http://git.kernel.org/?p=linux/kernel/git/kvalo/ath6kl-cleanup.git;a=summary After over 1100 (!) patches we have now reached a state where I would like to start discussing about pushing the driver to the wireless trees and replacing the staging driver. The driver is now a lot smaller and looks like a proper Linux driver. The size of the driver (measured with simple wc -l) dropped from 49 kLOC to 18 kLOC and the number of the .c and .h files dropped from 107 to 22. Most importantly the number of subdirectories reduced from 26 to zero :) There are two remaining checkpatch warnings in the driver which we decided to omit for now: drivers/net/wireless/ath/ath6kl/debug.c:31: WARNING: printk() should include KERN_ facility level drivers/net/wireless/ath/ath6kl/sdio.c:527: WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt The driver has endian annotations for all the hardware specific structures and there are no sparse errors. Unfortunately I don't have any big endian hardware to test that right now. We have been testing the driver both on x86 and arm platforms. The code is also compiled with sparc and parisc cross compilers. Notable missing features compared to the current staging driver are: o HCI over SDIO support o nl80211 testmode o firmware logging o suspend support Testmode, firmware logging and suspend support will be added soon. HCI over SDIO support will be more difficult as the HCI driver needs to share code with the wifi driver. This is something we need to research more. Also I want to point out the changes I did for signed endian support. As I wasn't able to find any support for signed endian annotations I decided to follow what NTFS has done and added my own. Grep for sle16 and sle32, especially from wmi.h. Various people have been working on the cleanup, the hall of fame based on number of patches is: 543 Vasanthakumar Thiagarajan 403 Raja Mani 252 Kalle Valo 16 Vivek Natarajan 12 Suraj Sumangala 3 Joe Perches 2 Jouni Malinen Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Raja Mani <rmani@qca.qualcomm.com> Signed-off-by: Vivek Natarajan <nataraja@qca.qualcomm.com> Signed-off-by: Suraj Sumangala <surajs@qca.qualcomm.com> Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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