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path: root/drivers/net/wireless/wl12xx/scan.c (follow)
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2012-04-12wireless/wl12xx/wl1251: move TI WLAN modules to a common ti subdirectoryLuciano Coelho1-790/+0
Move wl12xx and wl1251 modules into a new drivers/net/wireless/ti directory. Add a TI WLAN Kconfig option and Makefile to support this change. Signed-off-by: Luciano Coelho <coelho@ti.com> Cc: John W. Linville <linville@tuxdriver.com>
2012-04-10wl12xx: adaptive sched scan dwell timesEyal Shapira1-4/+24
Set the dwell times for sched scan according to the number of probe requests which are going to be transmitted. This should fix the too short dwell time problem which prevented some of the probe requests from being transmitted in cases of high number of SSIDs (10+) to be actively sched scanned. However, in the common case of having up to 1-2 SSIDs that require active scan, the dwell time would be kept to a minimum which should conserve power. This is important as sched scan also runs periodically while the host is suspended and there's great importance to keep power consumption as low as possible. Signed-off-by: Eyal Shapira <eyal@wizery.com> [fixed a couple of new strict checkpatch warnings] Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-03-08wl12xx: implement SW Tx watchdogArik Nemtsov1-0/+6
Track freed FW blocks during Tx. If no blocks were freed during a predefined timeout, initiate a HW recovery. This helps in situations when the FW watchdog fails. Don't trigger recovery during activities that can temporarily stop Tx. This includes: - scanning - buffering packets for sleeping stations (AP role) - ROC on any role Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15wl12xx: use split scan for normal scanEyal Shapira1-3/+5
Split scan allows the FW to schedule other activities during a scan which may be a long operation. This is achieved by setting a trigger TID to ANY_TID and a scan trigger timeout other than 0. The default one is set to 50ms. Signed-off-by: Eyal Shapira <eyal@wizey.com> Signed-off-by: Igal Chernobelsky <igalc@ti.com> Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15wl12xx: don't fail on AP scanEliad Peller1-6/+7
AP role uses its own role_id for scans, so there's no reason to fail the scan if dev_role_id is invalid. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15wl12xx: declare support for hw scan while idleEliad Peller1-13/+0
By allowing hw scan while idle, we no longer need the redundant ROC/CROC that are done on idle off/on, which helps simplifying the state machine of the driver. This way, we can also allow scanning while there is an ongoing sched scan (otherwise, we won't be able to ROC on idle-off) Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15wl12xx: use dev_role_id for scansEliad Peller1-6/+14
Use device role for scans when the sta is not associated. sched_scan is used only when the sta is not associated, and thus should use the dev role (instead of sta role). Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15wl12xx: fw api change - add role_id to set_templateEliad Peller1-11/+17
The set_template commands now takes the role_id as parameter. Usually, we'll use the vif's main role_id. However, sometimes we'll want to use wlvif->dev_role_id instead of wlvif->role_id, so pass the wanted role_id as param. Update WL127X_FW_NAME/WL128X_FW_NAME. (This commit starts a series of fw update patches, and changes the start() callback to return an error in order to prevent the use of the driver during the transition. This change will be reverted in the last patch of series) Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-12-20wl12xx: mark no sched scan only after FW eventEyal Shapira1-1/+0
stop sched scan isn't an immediate operation and we need to wait for PERIODIC_SCAN_COMPLETE_EVENT_ID after sending a stop before changing internal state and notifying upper layers. Not doing this caused problems when canceling an existing sched scan and immediately requesting to start a new one with a different configuration as the FW was still in the middle of the previous sched scan. Signed-off-by: Eyal Shapira <eyal@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-12-20wl12xx: fix sched scan of DFS channelsEyal Shapira1-7/+8
DFS channels weren't scanned properly because min/max_duration weren't set for these channels even though they're required by the FW. The change sets passive_duration and min/max_duration for all channels as the FW uses the correct parameters according to the channel type. Signed-off-by: Eyal Shapira <eyal@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-12-20wl12xx: make WL1271_FLAG_IDLE flag per-vifEliad Peller1-1/+1
This flag should be set per-vif, rather than globally. Rename the flag to indicate IN_USE (rather than IDLE), as in the default configuration (i.e. flag is clear) the vif should be idle. Change all the bit operations (and elp conditions) appropriately. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-12-08wl12xx: minor fix in sched_scan_ssid_listEyal Shapira1-0/+3
The user can pass broadcast SSID (ssid="") in the list of SSIDs for active scan. In this case the loop was attempting to match SSIDs in the filter list to this empty entry and marking them as HIDDEN (sending probe request) by mistake Signed-off-by: Eyal Shapira <eyal@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-12-01Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into wl12xx-nextLuciano Coelho1-1/+1
2011-11-08wl12xx: fix wl12xx_scan_sched_scan_ssid_list() check that all given ssids are in filtersEyal Shapira1-1/+1
A minor fix for the check that verifies that all given SSIDs (in req) exist in the filters (the match sets) Signed-off-by: Eyal Shapira <eyal@wizery.com> Acked-by: Luciano Coelho <coelho@ti.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-08wl12xx: set scan probe requests rate according to the no_cck flagGuy Eilam1-4/+15
Set the TX rate of probe requests during scanning according to the no_cck flag in the scan request struct. Signed-off-by: Guy Eilam <guy@wizery.com> Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-11-08wl12xx: couple role_start_dev with rocEliad Peller1-2/+1
Device role is always started along with ROC. Couple them together by introducing new wl12xx_start_dev and wl12xx_stop_dev functions. By using these functions, we solve a bug that occured during channel switch - we started the dev role on one channel, and ROCed on a different one. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-10-11wl12xx: move debugging definitions to a separate fileLuciano Coelho1-0/+1
Separate the debugging macros and other definitions to a new debug.h file. This is be needed because the sdio and spi modules don't need to depend on the wl12xx module anymore, but still need to include wl12xx.h. Currently they do depend on it, because of the debugging global that wl12xx exports. A future patch will remove this dependency. Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-10-11wl12xx: add band field to wlvifEliad Peller1-1/+1
add band field into the per-interface data. mac80211 configures some values (e.g. band, channel) globally, while we configure them per-interface. In order to make it easier to keep track of the configured value for each value while keeping sync with mac80211, save these values both globally and per-vif. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-10-11wl12xx: make WL1271_FLAG_IBSS_JOINED flag per-vifEliad Peller1-1/+1
This flag should be set per-vif, rather than globally. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-10-11wl12xx: make WL1271_FLAG_STA_ASSOCIATED flag per-vifEliad Peller1-2/+2
This flag should be set per-vif, rather than globally. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-10-11wl12xx: move bitrate_masks into wlvifEliad Peller1-10/+11
move bitrate_masks into the per-interface data, rather than being global. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-10-07wl12xx: move dev_role_id into wlvifEliad Peller1-4/+6
move dev_role_id into the per-interface data, rather than being global. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-10-07wl12xx: move role_id into wlvifEliad Peller1-2/+3
move role_id into the per-interface data, rather than being global. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-10-07wl12xx: move probereq into wlvifEliad Peller1-1/+1
move probereq into the per-interface data, rather than being global. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-10-07wl12xx: move bss_type into wlvifEliad Peller1-4/+8
move bss_type into the per-interface data, rather than being global. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-10-07wl12xx: replace wl->mac_addr with vif->addrEliad Peller1-14/+18
The mac address of the interface already exists in vif->addr. Use it instead of wl->mac_addr. It seems that due to some fw bug, we still need to set nvs->mac to the actual mac addresss, otherwise the fw doesn't function well (e.g. can't get dhcp address). Thus, use wl->mac_addr for this purpose, and don't delete it yet. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-09-23wl12xx: implement set_bitrate_mask callbackEliad Peller1-8/+15
Save the configured bitrate, and use the min allowed rate as the basic rate (e.g. when scanning). Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-09-22wl12xx: fix forced passive scansLuciano Coelho1-6/+13
We were using incorrect max and min dwell times during forced passive scans because we were still using the active scan states to scan (passively) the channels that were not marked as passive. Instead of doing passive scans in active states, we now skip active states and scan for all channels in passive states. Cc: <stable@kernel.org> # 2.6.36+ Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-09-14wl12xx: ignore sched scan match sets without SSIDLuciano Coelho1-3/+12
For now, cfg80211 only support match sets with SSIDs, but in the future more parameters will be added. This patch ignores eventual matches that do not contain SSIDs in preparation for the future. This change also affects the case where broadcast SSIDs are used. Matching a broadcast SSID will match everything, so they can be ignored. Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-09-14wl12xx: add support for sched_scan filtersLuciano Coelho1-35/+72
Implement support for filtering in scheduled scans. With this commit we now use the match sets passed by cfg80211 to filter on SSIDs. Due to the nature of the wl12xx firmware API, we don't allow SSIDs to be sent in the probe requests if they are not going to match any of the filters. Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-09-14wl12xx: check for ROC on scan_completeEliad Peller1-2/+3
When scan completes, and we are not associated, we should start the dev role and ROC. however, we might already be in this situation (e.g. if we got disconnected during scan). check for it. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-09-14wl12xx: don't use WL1271_SCAN_OPT_PRIORITY_HIGH flagEliad Peller1-3/+0
When setting the WL1271_SCAN_OPT_PRIORITY_HIGH flag, the driver requests a scan *now*, and the fw doesn't enter psm before scanning, which in turn might cause packets loss. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-25wl12xx: use SCAN_SSID_TYPE_PUBLIC when using the wildcard in sched_scanLuciano Coelho1-2/+5
When we are scanning for the wildcard SSID in a scheduled scan, we should use SCAN_SSID_TYPE_PUBLIC so that we don't filter out the scan results. Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-25wl12xx: add support for multiple SSIDs in sched_scanLuciano Coelho1-7/+56
The wl12xx firmwares support multiple SSIDs in a single sched_scan run. This patch implements support for it. We use three different types os sched_scan: FILTER_ANY (ie. not filtering, only wildcard SSID in the probe_reqs); FILTER_LIST (ie. send out probe_reqs with the specified SSIDs and only report if they are found); and FILTER_DISABLED (ie. send out probe_reqs with the specified SSIDs, but report anything found). Since we still don't have proper filter support in nl80211/cfg80211 yet, we cannot use filters when the wildcard SSID is used. Thus, we will not filter anything if the wildcard SSID is specified. Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-22wl12xx: support IBSS vif typeEliad Peller1-1/+8
Start IBSS role when the interface type is IBSS. As with sta role, use the dev role until the role is started. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-22wl12xx: replace dummy_join with ROC/CROC commandsEliad Peller1-6/+14
The ROC command asks the fw stay on the channel of the given hlid. it currently has 2 primary functions: 1. Allow tx/rx from the device role. In order to tx/rx packets while the stations is not associated (e.g. auth req/resp), the device role has to be used, along with ROC on its link. Keep the logic similiar to the one used in dummy_join. However, since we can't scan while we ROC, we add CROC before starting a scan, and ROC again (if needed) on scan complete. 2. Keeping the antenna for a specific link. We ROC until the connection was completed (after EAPOLs exchange) in order to prevent BT coex operations from taking the antenna and failing the connection (after this stage, psm can be used). During association, we ROC on the station role, and then CROC the device role, thus assuring being ROC during all the connection process. Delete the WL1271_FLAG_JOINED flag, and use a roc bitmap to indicate what roles are currently ROCed. Add wl12xx_roc/croc functions in order to wrap the roc/croc commands while taking care of the roc bitmap. The current ROC/CROC state-machine is a bit complicated. In the future we'll probably want to use wpa_supplicant to control the ROC during connection. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-22wl12xx: update scan cmd apiEliad Peller1-1/+7
Update the scan command to use the new fw api (fw 6/7.3.0.0.75). Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-22wl12xx: remove rx filtering stuffEliad Peller1-3/+0
The new fw doesn't support rx_filtering configuration (as a stand-alone command. the rx filtering is done automatically according to the active role). Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-07-05wl12xx: add stop_scan commandEliad Peller1-0/+27
define wl1271_scan_stop() to cancel an ongoing hw scan. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27wl12xx: Avoid recovery while one is already in progressIdo Yariv1-1/+1
During recovery work commands sent to the FW could fail and schedule additional recovery work. Since the chip is going to be powered off, avoid recursive recoveries. Signed-off-by: Ido Yariv <ido@wizery.com> Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27wl12xx: split channel array per band in sched_scanLuciano Coelho1-32/+29
The firmware, in practice, treats the channels in three separate blocks, one for each band (bg, a and j). Instead of using a single array and doing some magic with indices, split the array in 3 to make it more readable. Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-31wl12xx: fix oops in sched_scan when forcing a passive scanLuciano Coelho1-3/+8
Fix kernel oops when trying to use passive scheduled scans. The reason was that in passive scans there are no SSIDs, so there was a NULL pointer dereference. To solve the problem, we now check the number of SSIDs provided in the sched_scan request and only access the list if there's one or more (ie. passive scan is not forced). We also force all the channels to be passive by adding the IEEE80211_CHAN_PASSIVE_SCAN flag locally before the checks in the wl1271_scan_get_sched_scan_channels() function. Signed-off-by: Luciano Coelho <coelho@ti.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-31wl12xx: add separate config value for DFS dwell time on sched scanLuciano Coelho1-2/+5
Use a different value for DFS dwell time when performing a scheduled scan. Previously we were using the same value as for normal passive scans. This adds some flexibility between these two different types of passive scan. For now we use 150 TUs for DFS channel dwell time. This may need to be fine-tuned in the future. Signed-off-by: Luciano Coelho <coelho@ti.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-31wl12xx: fix DFS channels handling in scheduled scanLuciano Coelho1-11/+20
DFS channels were never getting included in the scheduled scans, because they always contain the passive flag as well and the call was asking for DFS and active channels. Fix this by ignoring the passive flag when collecting DFS channels. Also, move the DFS channels in the channel list before the 5GHz active channels (this was implemented in the FW differently than specified). Signed-off-by: Luciano Coelho <coelho@ti.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-31wl12xx: fix passive and radar channel generation for scheduled scanLuciano Coelho1-2/+2
We were comparing bitwise AND results with a boolean, so when the boolean was set to true, it was not matching as it should. Fix this by booleanizing the bitwise AND results with !!. Signed-off-by: Luciano Coelho <coelho@ti.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-13wl12xx: prevent sched_scan when not idle or not in station modeLuciano Coelho1-0/+6
The current firmware only supports scheduled scan in station mode and when idle. To prevent the firmware from crashing, return -EOPNOTSUPP when sched_scan start is called in an invalid state. Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-13wl12xx: implement scheduled scan driver operations and reportingLuciano Coelho1-1/+5
This patch adds the mac80211 operations for scheduled scan and the scheduled scan results reporting. Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-13wl12xx: add scheduled scan structures and commandsLuciano Coelho1-0/+233
Add firmware command structures, definitions and code to to configure, start and stop scheduled scans. Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-04-19wl12xx: use a bitmask instead of list of booleans in scanned_chLuciano Coelho1-7/+10
We were using an array of booleans to mark the channels we had already scanned. This was causing a sparse error, because bool is not a type with defined size. To fix this, use bitmasks instead, which is much cleaner anyway. Thanks Johannes Berg for the idea. Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-03-03wl12xx: wakeup chip from ELP during scanArik Nemtsov1-6/+14
Commands are sometimes sent to FW on scan completion. Make sure the chip is awake to receive them. Sending commands while the chip is in ELP can cause SDIO read errors and/or crash the FW. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Ido Yariv <ido@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
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