Commit Graph

37 Commits

Author SHA1 Message Date
Dan Carpenter 0270639e89 rsi: missing unlocks on error paths
There is a missing unlock if rsi_find_sta() fails in
rsi_mac80211_ampdu_action() or if we hit the -EINVAL path in
rsi_mac80211_sta_add().

Fixes: 3528608f3a ("rsi: handle station connection in AP mode")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-30 19:48:32 +03:00
Dan Carpenter fc43867294 rsi: update some comments
These functions don't return -1 on failure.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-30 19:48:31 +03:00
Arvind Yadav 9ea792a48c net: rsi: mac80211: constify ieee80211_ops
ieee80211_ops are not supposed to change at runtime. All functions
working with ieee80211_ops provided by <net/mac80211.h> work with
const ieee80211_ops. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-24 12:57:31 +03:00
Prameela Rani Garnepudi 38ef62353a rsi: security enhancements for AP mode
Station id should be set in load key frame configured to device.
For WEP mode, key is configured once from mac80211. This key is
saved and configured to device every time a station is connected.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-17 10:07:00 +03:00
Prameela Rani Garnepudi 32be57a666 rsi: aggregation parameters frame for AP mode
TX command frame ampdu aggregation parameters is updated to
include sta_id for AP mode.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-17 10:06:59 +03:00
Prameela Rani Garnepudi 571b050b42 rsi: handle station disconnection in AP mode
When sta_remove of mac80211 is called, driver iterates through
list of existing stations to get the station id. Then peer notify
is prepared and send to firmare.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-17 10:06:57 +03:00
Prameela Rani Garnepudi 3528608f3a rsi: handle station connection in AP mode
Station structures are maintained in driver with required
fields. When mac80211 callback sta_add is called, driver
iterates through list of connected stations to check available
index and assigns station id which is important for further
communication to that station. Then peer notify frame is send
to firmware to inform the firmware about new station connection.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-17 10:06:56 +03:00
Prameela Rani Garnepudi d26a955940 rsi: add beacon changes for AP mode
Mac80211 config parameter BEACON_ENABLE is handled. When VAP
capabilities frame with AP mode is configured to firmware, beacon
events start coming to host at each PreTBTT. At this time, beacon
is taken from mac80211, descriptor is prepared and send to firmware.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-17 10:06:56 +03:00
Prameela Rani Garnepudi 75ca0049aa rsi: remove interface changes for AP mode
remove_interface callback of mac80211 is handled for AP mode.
Same is notified to firmware through vap_capabilities frame
with VAP status VAP_DELETE.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-17 10:06:55 +03:00
Prameela Rani Garnepudi 03c34c0d73 rsi: add interface changes for ap mode
AP mode is handled in add_interface callback of mac80211.
Also for AP mode, sending rx filter frame to disallow beacons
to host is added. Station structures are initialized to NULL.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-17 10:06:55 +03:00
Prameela Rani Garnepudi 6da1e00a53 rsi: advertise ap mode support
AP mode support is advertised to cfg80211. Necessary wiphy
parameters are initialized.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-17 10:06:54 +03:00
Karun Eagalapati 80a88ecf3b rsi: RTS threshold configuration
Provision is added for configuring RTS threshold by sending
vap dynamic update frame to firmware.

Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-08 14:46:04 +03:00
Karun Eagalapati db07971d08 rsi: add support for U-APSD power save
This patch adds support for U-APSD power save. Configuration
frame is downloaded to firmware with default settings and
support is advertised to mac80211

Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-08 14:46:02 +03:00
Karun Eagalapati ce86893fa8 rsi: add support for legacy power save
This patch adds support for legacy power save. Necessary
configuration frames are downloaded to firmware when power save
is enabled/disabled

Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-08 14:46:01 +03:00
Pavani Muthyala edba3532c6 rsi: add support for rf-kill functionality
This patch implements rfkill_poll handler. Also, necessary changes
are done in interface up and down handler to support rfkill
functionality.

Signed-off-by: Pavani Muthyala <pavani.muthyala@redpinesignals.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-08 14:46:00 +03:00
Prameela Rani Garnepudi d7203a83f0 rsi: regulatory enhancements
Below regulatory changes are included this patch
* Country code is saved as it will be used in bgscan.
* Region codes are mapped according to RSI region codes.
* Radar flag settings are moved under the check if 5GHZ band
  is enabled.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:25:45 +03:00
Prameela Rani Garnepudi 8658325849 rsi: Send rx filter frame to device when interface is down
When interface is down it is better to stop all RX packets to
host. 0xffff will block all packets to host.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:25:45 +03:00
Prameela Rani Garnepudi 5059afacee rsi: Remove internal header from Tx status skb
Device specific descriptor for each TX packet is prepared on top of
skb data address. This descriptor should be pulled out before
indicating the TX status to mac80211.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28 17:25:44 +03:00
Andrew Zaborowski ae44b50266 wireless: Set NL80211_EXT_FEATURE_CQM_RSSI_LIST in multiple drivers
Set the NL80211_EXT_FEATURE_CQM_RSSI_LIST wiphy extended feature
wholesale in all mac80211-based drivers that do not set the
IEEE80211_VIF_BEACON_FILTER flags on their interfaces.  mac80211 will
be processing supplied RSSI values in ieee80211_rx_mgmt_beacon and
will detect when the thresholds set by
ieee80211_set_cqm_rssi_range_config are crossed.  Remaining (few)
drivers need code to enable the firmware to monitor the thresholds.
This is mostly only compile-tested.

Signed-off-by: Andrew Zaborowski <andrew.zaborowski@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-03-06 09:21:39 +01:00
Andrzej Zaborowski 769f07d8f0 mac80211: Pass new RSSI level in CQM RSSI notification
Extend ieee80211_cqm_rssi_notify with a rssi_level parameter so that
this information can be passed to netlink clients in the next patch, if
available.  Most drivers will have this value at hand.  wl1251 receives
events from the firmware that only tell it whether latest measurement
is above or below threshold so we don't pass any value at this time
(parameter is 0).

Signed-off-by: Andrew Zaborowski <andrew.zaborowski@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-02-08 10:43:04 +01:00
Prameela Rani Garnepudi 61d1084214 rsi: Add support for 802.11d
Transmit power level in a channel is determined based on the dfs region.
To support regulatory rules dfs region should be configured to device during
set channel request. Also antenna gain values are taken from the mac80211
channel parameters instead of fixed values.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-25 11:47:36 +02:00
Prameela Rani Garnepudi 4edbcd1aa7 rsi: Add support for antenna selection
RSI 9113 device supports single antenna for tx and rx. Support for using
external is added. This can be configured from user space using iw.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-25 11:47:35 +02:00
Prameela Rani Garnepudi 8b36de8cf5 rsi: Add support for configuring tx power
TX power can be configured from iwconfig, iw or from mac80211 when
regulatory changes are done. Hence support for configuring tx power
to device is added using the RADIO_PARAMS_UPDATE command frame.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-25 11:47:35 +02:00
Prameela Rani Garnepudi e6d6428449 rsi: Add support to filter rx frames
Filtering rx frames after connection in station mode avoids the
overhead of processing un-necessary frames. Hence rx filter frame
is added which can be configured to device at suitable times.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-25 11:47:34 +02:00
Prameela Rani Garnepudi 77364aae88 rsi: Host to device command frame vap_capabilites modified with new field vap status
* Command frame vap_capabilites is modified to use for vap add, vap delete
  and vap update in firmware, hence new filed vap status is added.
* When interface is down this frame needs to be send with vap status delete.
  Otherwise it is considered as wrong frame for the same interface in firmware.
* vap_update status is reserved for future.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-17 08:43:52 +02:00
Prameela Rani Garnepudi b022539db4 rsi: Fix memory leak in module unload
Observed crash when module is unloaded if CONFIG_RSI_DEBUGSFS is not set.
	Fix: Debugfs entry removal moved inside CONFIG_RSI_DEBUGSFS flag in
             function rsi_mac80211_detach()
Memory leak found and fixed for below structures in function rsi_mac80211_detach()
	* channel list for each supported band
	* rsi debugfs info

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-17 08:43:52 +02:00
Johannes Berg 57fbcce37b cfg80211: remove enum ieee80211_band
This enum is already perfectly aliased to enum nl80211_band, and
the only reason for it is that we get IEEE80211_NUM_BANDS out of
it. There's no really good reason to not declare the number of
bands in nl80211 though, so do that and remove the cfg80211 one.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-12 15:56:15 +02:00
Sara Sharon 50ea05efaf mac80211: pass block ack session timeout to to driver
Currently mac80211 does not inform the driver of the session
block ack timeout when starting a rx aggregation session.
Drivers that manage the reorder buffer need to know this
parameter.
Seeing that there are now too many arguments for the
drv_ampdu_action() function, wrap them inside a structure.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-01-14 11:13:17 +01:00
Emmanuel Grumbach e3abc8ff0f mac80211: allow to transmit A-MSDU within A-MPDU
Advertise the capability to send A-MSDU within A-MPDU
in the AddBA request sent by mac80211. Let the driver
know about the peer's capabilities.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-09-22 15:21:23 +02:00
Johannes Berg 30686bf7f5 mac80211: convert HW flags to unsigned long bitmap
As we're running out of hardware capability flags pretty quickly,
convert them to use the regular test_bit() style unsigned long
bitmaps.

This introduces a number of helper functions/macros to set and to
test the bits, along with new debugfs code.

The occurrences of an explicit __clear_bit() are intentional, the
drivers were never supposed to change their supported bits on the
fly. We should investigate changing this to be a per-frame flag.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-06-10 16:05:36 +02:00
Jahnavi Meher e8c58e7a5a rsi: Changes for 40MHz
Added code required for 40MHz.

Signed-off-by: Jahnavi Meher <jahnavi.meher@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19 15:49:23 -04:00
Jahnavi Meher 686a254177 rsi: Adding support for host based bgscan.
Added support for host based bgscan. The h/w queues are blocked
while bgscan is being performed and after coming to the connected
channel, the queues are unblocked.

Signed-off-by: Jahnavi Meher <jahnavi.meher@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19 15:49:23 -04:00
Jahnavi Meher 85af5bf829 rsi: Adding support for 5GHz
Adding support for 5GHz.

Signed-off-by: Jahnavi Meher <jahnavi.meher@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19 15:49:23 -04:00
Jahnavi Meher aabd3ad41a rsi: Using band from rsi_common to fill in ieee80211_rx_status
Filling in band from common->band.

Signed-off-by: Jahnavi Meher <jahnavi.meher@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19 15:49:21 -04:00
Jahnavi Meher 19d2e619e7 rsi: Fixed the kernel doc
Changed the function header to match the function name.

Signed-off-by: Jahnavi Meher <jahnavi.meher@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19 15:49:21 -04:00
Jahnavi Meher 5f407acbb7 rsi: Changed the return value to enable BA set-up
Signed-off-by: Jahnavi Meher <jahnavi.meher@redpinesignals.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:53 -04:00
Fariya Fatima dad0d04fa7 rsi: Add RS9113 wireless driver
This patch adds the Redpine Signals' 91x wireless driver.

Signed-off-by: Fariya Fatima <fariyaf@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17 13:51:52 -04:00