Commit Graph

654 Commits

Author SHA1 Message Date
Arik Nemtsov
98323895c0 wl18xx: limit Tx for the AP single-STA-in-PSM case
Treat a single connected STA in PSM as a slow link and regulate Tx speed
according to slow link priority/stop thresholds.
This allows us to avoid flooding the FW, while delivering decent
throughput to a peer in forced-PSM.

[Small simplification of the if statements -- Luca]

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-11 12:25:36 +02:00
Arik Nemtsov
f1626fd898 wlcore/wl18xx: change priority calculations for links
Update the 18xx FW status private part to include Tx related link
priorities. Introduce new HW ops to determine link priority per chip
family.

For 18xx the changes are:
- Suspended links are at most low priority and Tx for them is stopped
  beyond the suspend threshold.
- Active links now get their thresholds directly from FW
- There's a new "stop" threshold for active links, at which point a link
  stops receiving new packets.

Update the min 18xx FW version required to make sure suspended links
bitmap is advertised by the FW.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-11 12:25:18 +02:00
Yair Shapira
c91ec5f3ad wl18xx: fix a bug in wl->num_rx_desc initialization
wl->num_rx_desc was mistakenly initialized with WL18XX_NUM_TX_DESCRIPTORS
but it should use WL18XX_NUM_RX_DESCRIPTORS instead.

This bug was passed unnoticed because currently both RX and TX descriptors
are initialized to the same value (32).

Signed-off-by: Yair Shapira <yair.shapira@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-11 10:26:24 +02:00
Arik Nemtsov
c23280eb14 wlcore: set 5Ghz probe-req template for DFS channels
Even passive scans on DFS channels require us to send probe requests, so
configure the probe-req in this case.

Also use this opportunity to prevent the code from crashing in case no
SSIDs are sent from above. This will likely happen in the DFS case
introduced. Even a passive scan might need the probe request configured
because of DFS channels.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-11 10:26:23 +02:00
Arik Nemtsov
387116b89e wlcore: improve handling for Rx errors
Treat Rx error code as a bitmask. This allows sending MIC failures
when other error bit are on.

Align Rx descriptor status mask to the FW definition.

Ease debugging in case FW reports failure to decrypt on packets.

Discard corrupted packets early in Rx path to avoid reporting other
abnormalities with corrupted packets that also have other failure bytes on.
Namely - we don't want to get a MIC failure on a corrupted packet.
This is mandated by the WiFi specification - see
section 11.4.2.4.1 in 802.11-2012.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-11 10:26:23 +02:00
Eyal Shapira
5d3a160365 wlcore: increase scan dwell times if no activity
There's a limit on scan dwell times of max 30ms in order
to avoid degrading voip traffic which could be going on
while scanning. However these dwell times increase the
chance of missing out on nearby APs leading to partial
scan results. Allow configuration of longer dwell times
in case there no active interface (i.e. no STA associated
or AP up).

[Arik - count started vifs using an in-driver function]

[Fixed some new checkpatch warnings regarding comments in the
networking subsystem. -- Luca]

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-11 10:25:39 +02:00
Arik Nemtsov
f4d02007cd wlcore: remove support for injected Tx
Require each incoming packet to have a valid vif. The injected Tx code
path was buggy (and unused), so disallow it altogether.

Cleanup a few places and add a warning so we can better discover
anomalies (corrupted skbs?) masquerading as injected Tx.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-11 09:38:23 +02:00
Eliad Peller
530abe195d wlcore: add ACX_PEER_CAP command
ACX_PEER_CAP command is just ACX_PEER_HT_CAP, but allows
configuring the peer's support rates as well.

this is needed because we start the station role when
the remote rates are not known yet.

the two commands should be unified in future fw versions,
but for now add a new set_peer_cap per-hw op, that will
use ACX_PEER_CAP for 18xx, and ACX_PEER_HT_CAP for 12xx.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-11 09:35:34 +02:00
Bill Pemberton
b74324d104 wlcore/wl18xx/wl12xx: remove __dev* attributes
CONFIG_HOTPLUG is going away as an option.  As result the __dev*
markings will be going away.

Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst,
and __devexit.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Luciano Coelho <coelho@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-12-06 15:04:59 -05:00
Arik Nemtsov
4d70384761 wl18xx: set last Tx rate from FW status
Obtain the last Tx rate from the FW status and translate it to
the mac80211 rate+flag format before sending it up via the Tx status.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-05 09:45:13 +02:00
Arik Nemtsov
0e81047996 wlcore: improved Tx scheduling algorithm
Prioritize EDCA by choosing the AC before anything else. Use the
fast/slow link bitmap in FW to improve the scheduling algorithm for
the multi-link scenario.

Set packet thresholds to determine if a given link is high or low
priority according to its speed. A slow link will be given high priority
if the amount of packets queued for it in the FW is lower than the
slow-threshold. Similarly, a fast link will be given high priority if
the number of its packets queued in FW is smaller than the high-threshold.

The improved algorithm:
1. Choose optimal AC according to FW utilization
2. Traversing the VIFs in a round-robin fashion, try to choose a high
   priority link. Links are traversed in a round-robin fashion inside a
   VIF.
3. If no high priority links are found, choose the first non-empty
   (low priority) link found in the round robin.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-05 09:43:33 +02:00
Arik Nemtsov
9ebcb23215 wlcore: track FW-allocated packets per link
Move FW-allocation tracking code to the fw_status function and track
allocations made by all links. These will be incorporated in the
improved Tx scheduling algorithm.

Manually zero the system link counters on op_stop, as this link is not
allocated the normal way.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-05 09:43:33 +02:00
Arik Nemtsov
8591d42452 wlcore: count packets held per AC in each vif
This accounting will help find a vif that has data in a specific AC.
Otherwise we have to traverse all the links, which can be lengthy for
the AP case.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-05 09:43:33 +02:00
Arik Nemtsov
1e0708a957 wlcore: track wlvif inside per-link structure
This allows us to pass only the link as a parameter to various functions
and deduce the wlvif. Note that this member will be NULL for global
links.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-05 09:43:32 +02:00
Arik Nemtsov
b50a62bb39 wlcore: initialize per-link FW freed blocks correctly
When a link is allocated, sometimes the "freed packets" counter in FW
is non zero, but we always assumed it is. This caused us to incorrectly
account FW allocated blocks in some cases.

When operating in AP mode, this bug caused some stations to never
come back from PSM.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-05 09:43:32 +02:00
Victor Goldenshtein
583f81644a wlcore: restore default channel configuration
wlcore allocates two static structs wl1271_band_2ghz & wl1271_band_5ghz
which are used/modified by Reg-Domain e.g. some channel might be marked
as passive at some point. Make sure we don't keep stale settings around
if the HW is unregistered/registered during operation.

[Arik - use Tx-power constant and tweak commit message]

Signed-off-by: Victor Goldenshtein <victorg@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-05 09:42:35 +02:00
Arik Nemtsov
6c4c453462 wlcore: consolidate free_link and always call it
Make sure free_link is always called when removing an interface. This
ensures all skbs belonging to this interface are returned to mac80211.
Otherwise these dangling skbs might crash the system on the next
call to wl1271_tx_reset_link_queues(). This happens on recovery/stop or
an unsuccessful Tx flush.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-05 09:41:47 +02:00
Arik Nemtsov
d935e385f8 wlcore: take the mutex before resetting Tx queues
Otherwise we risk contention for private members of our global structure
while op_stop_locked is running.

Reported-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-05 09:41:47 +02:00
Victor Goldenshtein
4c14518517 wlcore: remove unnecessary WARN_ON in wl12xx_tx_reset
Sometimes the driver can perform a recovery while Tx is
active, this will trigger unnecessary warning which might
delay the recovery for more than 100 mS.

Signed-off-by: Victor Goldenshtein <victorg@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-05 09:41:47 +02:00
Eliad Peller
0330ee1f5b wl18xx: declare support for greenfield ht_cap
The 18xx fw supports greenfield so add the
IEEE80211_HT_CAP_GRN_FLD flag to the supported
ht capabilities flags.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Ido Reis <idor@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-04 17:05:53 +02:00
Arik Nemtsov
5d979f3517 wlcore: clear roc_vif on iface removal
When removing an interface currently performing a ROC operation, clear
the current ROC state. This is useful especially during recovery and
keeps mac80211 in sync to our state.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-04 17:05:52 +02:00
Eliad Peller
2718bf4099 wlcore: remove WLCORE_QUIRK_NO_ELP
all the current firmwares support elp, so
we can safely remove WLCORE_QUIRK_NO_ELP.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-04 17:05:52 +02:00
Eliad Peller
3b44b3b368 wlcore: allow ACX_BA_SESSION_RX_SETUP to fail
Under some circumstances, that fw might be asked to
remove a rx ba sessions it doesn't know about. In
this case, instead of triggering a recovery, accept
the error code (CMD_STATUS_NO_RX_BA_SESSION) and
ignore it.

[Arik - indicate failure up when the BA session cannot be setup]

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-04 17:05:52 +02:00
Eliad Peller
ea5084356f wlcore: allow fw commands to fail
Currently, each fw command/acx that return a status code
different than CMD_STATUS_SUCCESS will trigger a recovery
in the driver.

However, it is a valid for some fw commands to fail (e.g.
due to temporary lack of resources), so add new functions
that allow passing bitmap of valid error return values.

(make the current wl1271_cmd_send/wl1271_cmd_configure
wrappers around the new functions, in order to avoid
changing the whole driver)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-04 17:05:52 +02:00
Yair Shapira
d88949b7de wl18xx: support 2nd set of mac/phy tx-power params
First set (low, medium and high TX power values) is used
for STA-HP background role. The 2nd set is used for other roles.

Update other mac/phy parameters according to new FW.

Signed-off-by: Yair Shapira <yair.shapira@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

Conflicts:
	drivers/net/wireless/ti/wl18xx/main.c
2012-12-04 17:01:39 +02:00
Ido Reis
ec4f4b76a6 wl18xx: update default mac/phy parameters
Update mac/phy paramters according to the default HP SISO boards.

Signed-off-by: Ido Reis <idor@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-04 16:59:31 +02:00
Arik Nemtsov
3ea186d137 wlcore/wl12xx: make sure session id is always zero for AP
The 12xx FW doesn't support non-zero session ids for AP-mode. Introduce
an appropriate quirk to make sure the session id is always zero when
needed.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-04 16:43:04 +02:00
Luciano Coelho
aaabee8b76 Merge branch 'wl12xx-next' into for-linville
Conflicts:
	drivers/net/wireless/ti/wlcore/main.c
2012-12-04 16:39:47 +02:00
Luciano Coelho
2f24456149 wl18xx: ignore irrelevant firmware version fields
For wl18xx, only the chip ID and the minor version number are
relevant.  Ignore the other numbers which are either not used or
relate to internal projects or internal branches.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-04 16:36:12 +02:00
Luciano Coelho
8675f9abdf wlcore/wl12xx/wl18xx: verify multi-role and single-role fw versions
Previously we were only checking the single-role firmware version.
Now add code to check for the firmware versions separately for each
firmware type.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-04 16:36:12 +02:00
Luciano Coelho
b3ec9cf205 wl12xx: ignore some of the firmware version fields
The firmware type and the project number fields in the firmware
version number, cannot be checked as if they increase sequentially,
because the former is the firmware type and the latter is an internal
project number.  There's no guarantee that these numbers will remain
incremental, so use WLCORE_FW_VER_IGNORE.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-04 16:36:11 +02:00
Luciano Coelho
af4e94c565 wlcore: change way of checking the firmware version
The firmwares version string contain 5 integers.  We used to consider
all the digits (except for the first one, which indicates the chip) as
linearly increasing version numbers.  This is not correct, because
some of the integers indicate type of firmware (eg. single-role
vs. multi-role) or the internal project it was created for.

Besides, this varies a bit from chip to chip, so we need to make the
firmware version checks more flexible (eg. allow the lower driver to
ignore some of the integers).  Additionally, we need to change the
code so that we only check for a linearly increasing number on the
fields where this actually makes sense.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-04 16:36:11 +02:00
Luciano Coelho
c3552c0625 wlcore/wl12xx: remove deprecated FW version check
We don't distinguish between STA and AP firmwares anymore, so the
firmware version checking and quirks setting in wl12xx isn't needed
anymore.

Remove implementation of .identify_fw in wl12xx and deprecated
definitions.  Don't remove the op entirely from wlcore, because it may
be needed for more fine-grained checking later.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-04 16:36:10 +02:00
Luciano Coelho
986f3aa166 wlcore/wl12xx: move wl12xx chip ID defines to the lower driver
Move wl12xx-specific chip ID macros to the wl12xx driver and rename
them to 127X and 128X for clarity since both the "1" (2.4GHz) and the
"3" (2.4GHz and 5GHz) variants use the same chip ID.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-04 16:36:10 +02:00
Yair Shapira
7230341f25 wlcore/wl18xx/wl12xx: add recovery settings to conf
add support for recovery settings including bug_on_recovery and
no_recovery options.

These options can now be set using wl18xx-conf.bin file and wlconf
tool.

Signed-off-by: Yair Shapira <yair.shapira@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-04 16:36:09 +02:00
Luciano Coelho
c108c90535 wlcore: gather information about firmware stability
It's sometimes useful to gather information about the firmware
stability in long test runs, especially to see if problems are
recurring frequently or not.  With this commit we count the number of
times a hardware recovery was issued and print it out during recovery
and in the driver_state in debugfs.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Igal Chernobelsky <igalc@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-04 16:36:09 +02:00
Eliad Peller
518b680a8e wlcore: move ps change handling to .bss_info_changed()
Adapt the new mac80211 BSS_CHANGED_PS notification,
and do the ps handling in mac80211's per-vif
callback (.bss_info_changed), rather than in
the per-device (.config) callback.

Make sure to configure it only after association.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-04 16:36:08 +02:00
Eliad Peller
873d2a4034 wlcore: mask out CCK rates when starting GO
mask out CCK rates from the AP's local rates
when the interace is p2p interface (GO).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-04 16:36:08 +02:00
Eliad Peller
426001a6aa wlcore: use sta_state-based ROCs for AP mode
Try an opportunistic ROC when a STA is first added and stop the ROC when
the STA is removed or successfully authenticated. This would ensure we
don't miss auth/assoc/EAPOL packets during connection

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-04 16:36:07 +02:00
Arik Nemtsov
de40750f4b wlcore/wl18xx/wl12xx: separate channel count between chips
18xx chips are capable of staying on 2 channels at the same time.
Introduce a chip-family specific parameter to set the number of channels
in the interface-combinations published by the driver.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-12-04 16:36:07 +02:00
Johannes Berg
b9a9ada14a mac80211: remove probe response temporary buffer allocation
Instead of allocating a temporary buffer to build IEs
build them right into the SKB.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-30 13:41:27 +01:00
Eliad Peller
847cbebd52 wlcore: don't stop fwlog if dbgpins are used
Due to a bug, the fw asserts on fw log stop when dbg-pins are used.
Don't stop the fw log in this case.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-28 11:45:43 +02:00
Arik Nemtsov
5f9b67770b wlcore: use new set bandwidth command to adjusting channel BW
We support changing the channel BW when we started the STA role on
a 40Mhz bandwidth. Otherwise a reconnection is required.
Save the started channel width and use it when channel width updates
arrive.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-28 11:45:42 +02:00
Eliad Peller
7c482c1040 wlcore: configure dwell times according to scan type
Allow configuring different dwell times to the different
scan types (regular and scheduled).

Add new configuration entry (dwell_time_dfs) to
conf_scan_settings, in order to allow setting
different values for normal scan and scheduled scan.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-28 11:45:42 +02:00
Eliad Peller
6507babab4 wl18xx: make driver operational again
we have done updating the driver to the new fw
api, so make the driver operational again.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-28 11:41:45 +02:00
Eliad Peller
1019975640 wlcore: call ieee80211_sched_scan_stopped on interface removal
The interface might go down before we got the SCHED_STOPPED
event, so make sure to call ieee80211_sched_scan_stopped()
if the scanned interface is removed.

Replace sched_scanning with sched_vif in order to save
the scanned interface.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-28 11:41:44 +02:00
Victor Goldenshtein
6b70e7eb70 wlcore: add new reg-domain configuration command
In 18xx the calibration process of the PHY Cortex domain
requires to perform an active calibration of the channel
before it can be used for transmission. To fulfill world
wide regulatory restrictions, fw should be always
synchronized/updated with current CRDA configuration.
Add a new "CMD_DFS_CHANNEL_CONFIG" command to update the
fw with current reg-domain, this command passes a bit map
of channels that are allowed to be used for transmission.

The driver shall update the fw during initialization and
after each change in the current reg-domain
configuration. The driver will save the channel number of
incoming beacons during the scan process, as they might
be a result of the passive scan on
"IEEE80211_CHAN_PASSIVE_SCAN" channel and will update the
fw accordingly once the scan is finished, the purpose of
this is to be ready in case of the authentication request
on one of these disabled (uncalibrated) channels.

The new command requires to wait for the fw completion
event "DFS_CHANNELS_CONFIG_COMPLETE_EVENT".

No scan commands (including the sched scan) can be
executed concurrently with the "CMD_DFS_CHANNEL_CONFIG",
wl->mutex ensures that.

[Arik - move reset of reg_ch_conf_last to safe place inside
op_stop_locked]
[Eliad - adjust to new event waiting api]

Signed-off-by: Victor Goldenshtein <victorg@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-28 11:41:43 +02:00
Eliad Peller
978cd3a0b8 wlcore: save session_id per-link
A new session_id is generated on link allocation.
it is saved in a global array and used later, on tx.

The new fw api adds new bcast/global_session_id
fields to start_role(ap) command, and a new session_id
field to add_peer command. align the driver with it.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:49:30 +02:00
Eliad Peller
d50529c0d8 wlcore: pass wmm configuration to the fw
New fields were added to start_role(ap) and
set_peer_state commands, so the fw will be
able to know whether the sta/ap supports
wmm (the fw uses it in order to choose the
AC for some of its internally-generated frames)

For sta, take this value right from bss_conf->qos.

For ap, check for wmm support by looking for the
WMM IE in the configured beacon.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:49:29 +02:00
Eliad Peller
c50a282515 wlcore: update events enum/struct to new fw api
The event mailbox in wl18xx has a different
(non-compatible) structure.

Create common functions in wlcore to handle the
events, and call them from the chip-specific
event mailbox parsers.

This way, each driver (wl12xx/wl18xx) extracts
the event mailbox by itself according to its
own structure, and then calls the common
wlcore functions to handle it.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:49:29 +02:00
Eliad Peller
fcab189027 wlcore: update channel_switch/stop_channel_switch commands
Some fields were added to the channel_switch and
stop_channel_switch commands. Unfortunately,
the new 18xx channel_switch struct is not backward
compatible with the 12xx channel switch struct.

Add a new channel_switch op to wlcore, and update
the driver accordingly.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:49:28 +02:00
Eliad Peller
b6acb4e00e wlcore: update acx enum
update the acx enum to the new fw api.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:49:28 +02:00
Eliad Peller
0a1c720c63 wl18xx: increase MAX_CHANNELS_5GHZ
Some regdomains have more than 23 valid 5ghz channels,
so 18xx's MAX_CHANNELS_5GHZ was increased to 32.

Since now we have different max 5ghz channels values
for wl12xx and wl18xx, add a new wl->max_channels_5ghz
field, and use it for scan channels configuration.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:49:27 +02:00
Eliad Peller
78e28062fe wlcore: split 18xx and 12xx scan mechanism
The scan APIs of 12xx and 18xx are totally different.
Use some common functions as much as possible (e.g.
for setting scan channels), but split scan.c into
chip-specific scan.c files, each implementing its
own scan mechanism.

(in other words - move most of the current wlcore's
scan.c into wl12xx, and implement a similar mechanism
in 18xx, according to the new api)

New wlcore ops are introduced in order to call the
chip-specific scan functions.

The template indices used for each scan (regular/scheduled)
are also different between the chips, so set the correct
indices used for each scan type after identifying the chip.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:49:27 +02:00
Eliad Peller
e9b9d45507 wlcore: update commands enum to new fw api
Align the commands enum with the new fw api (8.4.0.0.19)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:49:26 +02:00
Eliad Peller
750a986d6a wl18xx: change fw name and temporarily fail loading
The new fw (8.5.0.0.28) is not backward compatible
with older drivers.

Use a new fw name (along with bumping the min
fw version), and add some code to fail
any boot attempt during the fw api alignment
patches (as the driver is not functional in
these transitional patches).

This code will be removed after the api alignment
will be done.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:49:26 +02:00
Eliad Peller
512c5385e6 wlcore: make scan scan configuration functions more generic
18xx and 12xx have different scan APIs. In 18xx,
the scan and the sched scan use the same struct.

Prepare the scan configuration functions to it, by taking
more generic params (e.g. ieee80211_channel) instead of
specific structs/requests.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:49:25 +02:00
Eliad Peller
598b262a06 wlcore: don't call ieee80211_sched_scan_stopped directly
When we stop sched scan during connection, we shouldn't
call ieee80211_sched_scan_stopped directly, but do it
in the normal flow, as part of the SCHED_SCAN_COMPLETED
event handling.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:49:25 +02:00
Luciano Coelho
48af2eb046 wlcore: remove a bunch of unnecessary parentheses
Some if statements had unnecessary parentheses.  Remove them for
consistency.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:49:24 +02:00
Luciano Coelho
ef08d0281a wlcore: avoid using goto in normal code flow
Remove goto and label in the code where a simple if can be used.  If
nothing else, this is at least confusing git diff, which shows the
label name as the name of the function.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:49:23 +02:00
Eliad Peller
a8e27820f2 wlcore: don't leak wl->mbox
free it on wlcore_free_hw()

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:49:23 +02:00
Eliad Peller
d3f5a1b598 wlcore: print role_id on bss_info_changed
In multi-vif setup it's useful to know the role_id
being configured.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:49:22 +02:00
Eliad Peller
dc62a3dbf3 wlcore: configure the remote rates with our own rates
With the new connection flow, start_sta is called before
the remote rates where updated. Use our own supported rates
instead to make sure we don't disable any potential rate
(the rate policies will be updated later, but there is
currently no way to update the remote rates)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Reviewed-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:49:19 +02:00
Eliad Peller
58321b296d wlcore: refactor CHANGED_HT handling
Pass a variable indicating whether HT is enabled,
instead of duplicating the function call with
different arguments.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Reviewed-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:49:15 +02:00
Eliad Peller
ec87011a4a wlcore: reconfigure rate policy on association
When first configuring the rate policy, before auth,
we still don't have the correct rates that were
agreed during association.

Reconfigure the rate policy on association in order
to update them.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Reviewed-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:49:10 +02:00
Eliad Peller
42ec1f82a8 wlcore: specify correct supported_rates
The supported_rates field should contain all our supported
rates, even if the remote peer doesn't support them.

(rename CONF_TX_AP_ENABLED_RATES to CONF_TX_ENABLED_RATES,
as we now use it for both ap and sta)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Reviewed-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:49:06 +02:00
Eliad Peller
6c7b519464 wlcore: set active psm on association
The default ps mode of the fw is auto, while the default
ps mode of mac80211 is active (ps off).
In order to sync them, configure active ps on association.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Reviewed-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:49:01 +02:00
Eliad Peller
2993626678 wlcore: initiate ROC/CROC on sta state updates
Use the sta_state notifications to ROC when a station
is about to connect, and CROC respectively on
authorization (success) / deletion (failure).

Change the wl12xx_update_sta_state() flow to bail out
only on error, so multiple code blocks could refer
to the same state.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Reviewed-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:48:57 +02:00
Eliad Peller
b6970ee582 wlcore: add chanctx implementation
Add some basic chanctx implementation - debug prints,
and save the vif's channel/band/type.

After that, we no longer need to handle channel change
notifications on op_config.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:48:36 +02:00
Eliad Peller
cd1810ddcf wlcore: get channel from bss_conf instead of hw->conf
We care only about the operational channel, not
about the temporal hw channel (which won't have
any real meaning in multi-channel env anyway)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Reviewed-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:48:31 +02:00
Eliad Peller
dabf37dba4 wlcore: implement .remain_on_channel() callback
implement the reamin_on_channel() callback by starting
a dev role (already associated with the current vif)
on the requested channel/band.

This channel is usually different from the channel
of the sta role, so pass it to wl12xx_roc() as well,
and notify mac80211 (async) when the fw is ready
on the new channel.

Now, in case of offchannel tx, we should use the dev
role hlid, instead of the sta hlid.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Reviewed-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:48:26 +02:00
Eliad Peller
18eab43070 wlcore: workaround start_sta problem in wl12xx fw
for some reason, the wl12xx fw is not able to rx/tx
on the first start_sta cmd.
Workaround it by issuing a dummy start_sta + stop_sta
before starting the sta for the final time.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Reviewed-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:48:20 +02:00
Eliad Peller
3230f35e09 wlcore: start sta role on CHANGED_BSSID
Make the connection flow simpler by starting
sta role on bssid change.

Currently, we start dev role when going idle-off,
and start the sta role only after association
indication. This complicates the connection
flow with some possible intermediate states.

Make it simpler by starting sta role on bssid change,
which now happens *before* auth req get sent.

Update the handling of mac80211's notifications
and change wl1271_join/unjoin accordingly -
* Split wl1271_join() into wlcore_join (tuning on
  a channel/bssid) and wlcore_set_assoc (configure
  sta after association).
* Rename wl1271_unjoin() to wlcore_unset_assoc(), as
  it is no longer the inversion of wl1271_join()
  (now it's only used to disconnect associated sta /
  joined ibss, without stopping the role).
* Set ssid before starting station role (needed for
  start_role(sta)

While on it, split wl1271_bss_info_changed_sta() into
some sub-functions.

since we no longer use dev role in the connection flow,
we now always use the hlid of the sta role.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Reviewed-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-11-27 10:47:59 +02:00
Johannes Berg
4bf88530be mac80211: convert to channel definition struct
Convert mac80211 (and where necessary, some drivers a
little bit) to the new channel definition struct.

This will allow extending mac80211 for VHT, which is
currently restricted to channel contexts since there
are no drivers using that which makes it easier. As
I also don't care about VHT for drivers not using the
channel context API, I won't convert the previous API
to VHT support.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-26 12:42:59 +01:00
Tushar Behera
8f1fd6cb6a wlcore: Remove redundant check on unsigned variable
No need to check whether unsigned variable is less than 0.

CC: Luciano Coelho <coelho@ti.com>
CC: linux-wireless@vger.kernel.org
CC: netdev@vger.kernel.org
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-11-16 19:53:01 +02:00
Chuansheng Liu
25b08bf662 wlcore: Fix the usage of wait_for_completion_timeout
The return value of wait_for_completion_timeout() is always
>= 0 with unsigned int type.

So the condition "ret < 0" or "ret >= 0" is pointless.

Signed-off-by: liu chuansheng <chuansheng.liu@intel.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-11-16 19:53:01 +02:00
Janusz.Dziedzic@tieto.com
4eeac22c15 wlcore: SPI - fix spi transfer_list
In corner case for wl12xx_spi_raw_write() when
	len == SPI_AGGR_BUFFER_SIZE
we don't setup correctly spi transfer_list.
Next we will have garbage and strange errors
reported by SPI framework (eg. wrong speed_hz,
failed to transfer one message from queue)
when iterate transfer_list.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-11-16 19:53:01 +02:00
Kees Cook
99c227e3d9 drivers/net/wireless/ti/wl1251: remove CONFIG_EXPERIMENTAL
This config item has not carried much meaning for a while now and is
almost always enabled by default. As agreed during the Linux kernel
summit, remove it.

CC: Luciano Coelho <coelho@ti.com>
CC: "John W. Linville" <linville@tuxdriver.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-11-16 19:53:00 +02:00
Wei Yongjun
200e932649 wlcore: sdio: use platform_device_unregister in wl1271_remove()
platform_device_unregister() only calls platform_device_del() and
platform_device_put(), thus use platform_device_unregister() to
simplify the code.

Also the documents in platform.c shows that platform_device_del
and platform_device_put must _only_ be externally called in error
cases.  All other usage is a bug.

dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-11-16 19:53:00 +02:00
Wei Yongjun
ca6dc10343 wlcore: spi: use platform_device_unregister in wl1271_remove()
platform_device_unregister() only calls platform_device_del() and
platform_device_put(), thus use platform_device_unregister() to
simplify the code.

Also the documents in platform.c shows that platform_device_del
and platform_device_put must _only_ be externally called in error
cases.  All other usage is a bug.

dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-11-16 19:53:00 +02:00
Julia Lawall
4fb4e0bee1 drivers/net/wireless/ti/wlcore/main.c: eliminate possible double power off
The function wl12xx_set_power_on is only called twice, once in
wl12xx_chip_wakeup and once in wl12xx_get_hw_info.  On the failure of the
call in wl12xx_chip_wakeup, the containing function just returns, but on
the failure of the call in wl12xx_get_hw_info, the containing function
calls wl1271_power_off.  This does not seem necessary, because if
wl12xx_set_power_on has set the power on and then fails, it has already
turned the power off.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r@
identifier f,free,a;
parameter list[n] ps;
type T;
expression e;
@@

f(ps,T a,...) {
  ... when any
      when != a = e
  if(...) { ... free(a); ... return ...; }
  ... when any
}

@@
identifier r.f,r.free;
expression x,a;
expression list[r.n] xs;
@@

* x = f(xs,a,...);
  if (...) { ... free(a); ... return ...; }
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-11-16 19:53:00 +02:00
Thomas Pedersen
f4bda337bb mac80211: support RX_FLAG_MACTIME_END
Allow drivers to indicate their mactime is at RX completion and adjust
for this in mac80211. Also rename the existing RX_FLAG_MACTIME_MPDU to
RX_FLAG_MACTIME_START to clarify its intent. Based on similar code by
Johannes Berg.

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
[fix docs, atheros drivers]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-13 21:43:55 +01:00
Johannes Berg
8b2c98243e mac80211: clarify interface iteration and make it configurable
During hardware restart, all interfaces are iterated even
though they haven't been re-added to the driver, document
this behaviour. The same also happens during resume, which
is even more confusing since all of the interfaces were
previously removed from the driver. Make this optional so
drivers relying on the current behaviour can still use it,
but to let drivers that don't want this behaviour disable
it.

Also convert all API users, keeping the old semantics
except in hwsim, where the new normal ones are desired.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-09 17:34:35 +01:00
Eliad Peller
af390f4dd3 wlcore: protect wlcore_op_set_key with mutex
wlcore_op_set_key() calls wl18xx_set_key(),
which in turn executes some of his function
calls without acquiring wl->mutex and making
sure the fw is awake.

Adding mutex_lock()/ps_elp_wakeup() calls is
not enough, as wl18xx_set_key() calls
wl1271_tx_flush() which can't be called while
the mutex is taken.

Add the required calls to wlcore_op_set_key,
but limit the queues_stop and flushing
to the only encryption types in which
a spare block might be needed (GEM and TKIP).

[Arik - move state != ON check]

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:54 +03:00
Eliad Peller
ab2c4f37dc wlcore: decrease elp timeout
The current elp timeout (the same as the dynamic
ps timeout - 1500ms) is too high. Usually,
wl1271_ps_elp_sleep() get called right after tx/rx,
which is fine, but some command might get sent
even when there is no traffic (e.g. ht changes
triggered by beacon frames), and leaving the
device awake for 1500ms in this case is redundant.

Use a timeout of 30ms.
The fw won't enter elp anyway before the dynamic-ps
timeout was expired as well (and it entered ps
successfully).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:54 +03:00
Ido Yariv
6f8d6b20bb wlcore: Load the NVS file asynchronously
The NVS file is loaded by the device's probe callback with the help of
request_firmware(). Since request_firmware() relies on udevd, the
modules cannot be loaded before hotplug events are handled.

Fix this by loading the NVS file asynchronously and continue
initialization only after the firmware request is over.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:54 +03:00
Ido Yariv
3992eb2bf2 wlcore: Refactor probe
Move most of the device-specific probe functionality into setup(), a new
op. By doing this, wlcore_probe will be the first to request a firmware
from userspace, making it easier to load the NVS file asynchronously.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:54 +03:00
Ido Yariv
d556023895 wlcore: Allow memory access when the FW crashes
When the no_recovery flag is used, the recovery work will not restart
the FW and the state will not be set to 'on'. To enable post-mortem
analysis, allow memory access in the 'restarting' state.

Also, since the FW might not be operational, don't fail the read/write
operations if elp_wakeup fails.

Reported-by: Arkady Miasnikov <a-miasnikov@ti.com>
Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:53 +03:00
Eliad Peller
001e39a8ef wlcore: use dynamic keep-alive template ids
Currently, all the (station) roles use the same
keep-alive template id (0). However, the klv
template ids shouldn't be shared by different
roles.

Implement a simple klv_templates bitmap, and let
each role allocate its own klv template id on
role initialization.

[Arik - remove invalidation of KLV template when getting into "idle".
This is already handled in unjoin]

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:53 +03:00
Eliad Peller
4137c17c8c wlcore: invalidate keep-alive template on disconnection
Previously, invalidation of the keep-alive template was
done when going idle. However, while removing the
idle-handling we didn't move the keep-alive template
invalidation to another place.

This finally resulted in fw error when trying to use
the keep-alive template by another role.

(Note that we still have an error here - each role
should have its unique keep-alive template id, while
currently they all use CMD_TEMPL_KLV_IDX_NULL_DATA (0).
This only works now because we don't support concurrent
connected stations yet)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:53 +03:00
Arik Nemtsov
8c5dab1a84 wl18xx: default to siso40 in 2.4ghz with a single antenna
The driver used siso20 in this case for legacy reasons.

Reported-by: Ido Reis <idor@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:53 +03:00
Ido Yariv
a8311c8a9a wlcore: Fix unbalanced interrupts enablement
The interrupt line is enabled by wl12xx_enable_interrupts and
wl18xx_enable_interrupts, but it will not be disabled in all failure
paths. Fix this.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:53 +03:00
Ido Yariv
792a58a872 wlcore: Don't recover during boot
While recursive recovery is avoided during shutdown, a new recovery may
be queued when the FW boots. The recovery work will then try to stop an
already stopped hardware, which will most likely result in a kernel
panic.

Fix this by verifying that wl->state is on before queueing a new
recovery.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:53 +03:00
Yair Shapira
1defbeb042 wlcore/wl18xx: add phy_fw_version_str to debugfs driver_state
add phy_fw_version_str to debugfs driver_state file.
information is taken during boot and stored in wl->chip.phy_fw_ver_str.

Signed-off-by: Yair Shapira <yair.shapira@ti.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:52 +03:00
Arik Nemtsov
61932ba59f wlcore: spi: use private max-buf-size limit
Limit SPI transmissions to the wl12xx max buffer size, as only 12xx was
tested with SPI.

This allows us to remove the global aggregation buffer constant.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:52 +03:00
Yair Shapira
e166de556f wl18xx: number_of_assembled_ant5 indicates if A band is enabled
Use number_of_assembled_ant5 phy param to indicate if A band is enabled:
if number_of_assembled_ant5 != 0 then it is enabled otherwise it is
disabled.

This aligns with phy implementation that uses this param both to indicate
if band is active and the number of antennas.

This parameter replaces enable_11a module param that was removed.

User-Space applications can use wlconf and/or INI files to disable A band
using this parameter.

Signed-off-by: Yair Shapira <yair.shapira@ti.com>
Signed-off-by: Igal Chernobelsky <igalc@ti.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:52 +03:00
Arik Nemtsov
e7a6ba29d3 wlcore: allow up to 3 running STA interfaces in combinations
This allows us to have a p2p-management interface (in STA mode),
as we as a group dedicated interface.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:52 +03:00
Eliad Peller
889300fa53 wlcore: lazy-enable device roles
Enable device roles just before starting it.
This way, a single device role should be enough
for all vifs, as we can't use concurrent device
roles (which require ROC) anyway.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:52 +03:00
Eliad Peller
8dc574308b wlcore: always use wlvif->role_id for scans
enabled (but not-started) sta role should be good enough
for scanning (both normal and scheduled), so use it
instead of the device_role.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:52 +03:00
Arik Nemtsov
fc3d1db5b6 wlcore: make debug prints work without dynamic debug
Make debug prints operational when dynamic debug is not defined.
This allows better debugging in production environments.

Change the driver prefix to "wlcore" while were at it.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:52 +03:00
Arik Nemtsov
f4afbed944 wlcore/wl18xx/wl12xx: allow up to 3 mac addresses
Allow 3 native mac addresses on 18xx. On 12xx allow 2 native mac
addresses and set the LAA bit to create a third mac address. This
enabled operation with a separate group interface.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:52 +03:00
Eliad Peller
d49524d3e8 wlcore: resume() only if sta is associated
mac80211's resume() callback might get called even if
the sta is not associated (but only up). The
resume sequence in this case results in configuring
the wake-up conditions of a non-started role, which
causes fw assertion.

Fix it by bailing out if the STA is not connected
(like we do on suspend()).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:51 +03:00
Eyal Shapira
11bc97eb90 wlcore: configure wowlan regardless of wakeup conditions
wowlan filters should be configured in any case in suspend/resume.
This shouldn't be dependent on whether wakeup conditions are the
same for suspend and resume states. Only the FW command to
reconfigure wakeup conditions should be avoided in such a case.

Reported-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:51 +03:00
Igal Chernobelsky
26a309c758 wlcore/wl18xx/wl12xx: aggregation buffer size set
Aggregation buffer size is set separately per 18xx/12xx chip family.
For 18xx aggragation buffer is set to 13 pages to utilize all
the available tx/rx descriptors for aggregation.

[Arik - remove redundant parts from the patch]

Signed-off-by: Igal Chernobelsky <igalc@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:51 +03:00
Igal Chernobelsky
f1c434df67 wl18xx/wl12xx: defines for Tx/Rx descriptors num
Use defines for number of Tx/Rx descriptors.

Signed-off-by: Igal Chernobelsky <igalc@ti.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:51 +03:00
Arik Nemtsov
f83e54134a wlcore: tx_flush - optimize flow and force Tx during the flush
Force Tx during the flush if there are packets pending in the driver.
This actually solves a bug where we would get called from the mac80211
wq context, which would prevent tx_work from getting queued, even when
the mutex is unlocked.

Don't stop the queues needlessly if there's nothing to flush. Use a
larger delay when sleeping to give the driver a chance to flush and
avoid cpu busy looping. Re-arrange the loop so the last iteration is
not wasted.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:51 +03:00
Arik Nemtsov
958e303abb wlcore: make Tx flush timings more verbose
Print how much time a flush took. This will help debug the time it takes
to switch between channels.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:51 +03:00
Arik Nemtsov
714947600e wlcore: allow only the lowest OFDM rate for p2p setup frames
The IEEE80211_TX_CTL_NO_CCK_RATE flag is only set for mgmt packets
transmitted during p2p connection setup. Make sure to use the lowest
OFDM rate guarantee the peer always hears us.
Change the p2p rate policy to contain only the 6mpbs rate to acheive
this effect.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:51 +03:00
Arik Nemtsov
c3e06fc03b wlcore: AP mode - send non-data packets with basic rates
This solves interoperability issues with peer that don't seem to "hear"
management packets transmitted in higher rates. Based on a previous
patch by Igal Chernobelsky.

Cc: Igal Chernobelsky <igalc@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:51 +03:00
Eliad Peller
6dbc5fc259 wlcore: cancel recovery_work on stop() instead of remove_interface()
recovery_work should be cancelled when stopping the device,
not when removing an interface (this is probably a leftover
from the single-role days)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:50 +03:00
Ido Reis
9ae48aeaa3 wl18xx: increase rx_ba_win_size to 32
The new FWs support a bigger BA window.

Signed-off-by: Ido Reis <idor@ti.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:50 +03:00
Ido Yariv
4cc533830b wlcore: Prevent interaction with HW after recovery is queued
When a function requests to recover, it would normally abort and will
not send any additional commands to the HW. However, other threads may
not be aware of the failure and could try to communicate with the HW
after a recovery was queued, but before the recovery work began.

Fix this by introducing an intermediate state which is set when recovery
is queued, and modify all state checks accordingly.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:50 +03:00
Eliad Peller
9b1a0a7771 wlcore: consider single fw case
When a single fw is being used for both single-role
and multi-role cases (e.g. 18xx), wl->mr_fw_name is
NULL, which results in NULL dereference while trying
to load the multi-role fw.

In this case, always use the single-role fw, and avoid
redundant fw switch by checking for this case in
wl12xx_need_fw_change() as well.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:50 +03:00
Ido Reis
e1c497c3e4 wl18xx: update default phy configuration for pg2
default switch configuration set to pg2 chips (rdl 1/2/3/4).
removed hacks for specific board types.
pg1.x boards are now supported only using module params
or specific conf files.

Signed-off-by: Ido Reis <idor@ti.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:13:50 +03:00
Wei Yongjun
27b7ce7c7f wl12xx: remove duplicated include from main.c
Remove duplicated include.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:07:30 +03:00
Tim Gardner
0635ad4550 wlcore: Declare MODULE_FIRMWARE usage
Declare any firmware that might be used by this driver.
If all drivers declare their firmware usage, then a sufficiently
complete list of firmware files can then be used to pare down
the external linux-firmware package to just the files in actual use.

Cc: Luciano Coelho <coelho@ti.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:07:28 +03:00
Luciano Coelho
ae35c30c14 wl12xx: use module_platform_driver
Use a module_platform_driver declaration instead of replicating the
init and exit functions in the driver.

Based on the patch for wl18xx by Devendra Naga.

Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 12:02:38 +03:00
Devendra Naga
77e7b30b23 wl18xx: use module_platform_driver
the driver's init and exit routines can be implemented with the
module_platform_driver, as the init and exit code is same as
that of the module_platform_driver

Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27 11:44:40 +03:00
Wei Yongjun
760a6a958c wl18xx: remove duplicated include from main.c
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>

Remove duplicated include.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-07 15:03:40 -04:00
Thomas Huehn
36323f817a mac80211: move TX station pointer and restructure TX
Remove the control.sta pointer from ieee80211_tx_info to free up
sufficient space in the TX skb control buffer for the upcoming
Transmit Power Control (TPC).
Instead, the pointer is now on the stack in a new control struct
that is passed as a function parameter to the drivers' tx method.

Signed-off-by: Thomas Huehn <thomas@net.t-labs.tu-berlin.de>
Signed-off-by: Alina Friedrichsen <x-alina@gmx.net>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
[reworded commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-31 16:18:39 +02:00
Arik Nemtsov
2b2b643807 wlcore: op_tx: pass sta explicitly when inferring frame hlid
avoid using the skb CB for getting the appropriate sta.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Acked-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-31 16:11:03 +02:00
Arik Nemtsov
930e1915e7 wlcore: don't get the hlid from a queued skb
There was a bug hiding here since the hlid was sometimes inferred from
the sta, which might be invalid at this point.

Instead, propagate the hlid from the skb-queue where we got the skb
in the first place.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Acked-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-31 16:11:02 +02:00
John W. Linville
90b90f60c4 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 2012-07-20 12:30:48 -04:00
Luciano Coelho
e8c7b335fa wlcore: increase command completion timeout
In some rare cases, the CMD_ROC completion may take over 1 second.
The timeout had earlier been increased to 1000ms (from 750ms), but it
is still not enoug.  Increase it to 1500ms.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-18 15:08:45 +03:00
Luciano Coelho
5285eb5442 wlcore: wait for command completion event when sending CMD_ROLE_STOP
We need to wait for the command completion event when we send the
CMD_ROLE_STOP event otherwise we may try to send CMD_ROLE_START too
soon and get out-of-sync with the firmware.

In some cases, the firmware may not send the event, so we wait for the
event or for the timeout, whichever comes first.

This patch is based on an earlier version by Eliad.

Cc: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-18 15:08:22 +03:00
Arik Nemtsov
cc31a3c9ae wl18xx: enable MIMO rates when connected as a MIMO STA
Use this opportunity to consolidate the check for MIMO support into a
separate function.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-18 15:08:22 +03:00
Yair Shapira
bf722d1def wlcore: make usage of nla_put clearer
handle errors of nla_put() inside the if(nla_put...) {}

This makes the code simpler and clearer because:
we take advantage from the fact that we have only one nla_put
in our routines (so no real need for goto label).
this avoids ugly goto forward followed by goto backward.

Signed-off-by: Yair Shapira <yair.shapira@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-18 15:08:22 +03:00
Yair Shapira
ff324317e6 wlcore/wl12xx: calibrator fem detect implementation
this completes the calibrator based fem detect logic in driver:
driver starts (by calibrator) in plt_mode PLT_FEM_DETECT
wlcore inits and starts plt on wl12xx
wl12xx fetches fem number from firmware and stores it in wl->fem_manuf
wl12xx immediatly returns (doesn't start radio, etc...)
wlcore returns the fem_manuf to calibrator using WL1271_TM_ATTR_DATA
plt_mode is stopped

Signed-off-by: Yair Shapira <yair.shapira@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-18 15:08:22 +03:00
Yair Shapira
16bc10c318 wl18xx: disable calibrator based fem detect
bip calibration is not required in wl18xx. Therefore we
disable also auto fem (using calibrator fem detect) mode.

Signed-off-by: Yair Shapira <yair.shapira@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-18 15:08:22 +03:00
Yair Shapira
7019c80eea wlcore: add plt_mode including new PLT_FEM_DETECT
add wl->plt_mode that is used to indicate different plt
working modes: this will be used to implement calibrator side
auto fem detection where driver asks firmware to detect
the wlan fem radio type and returns it to calibrator.

this is not implemented yet and plt_modes: PLT_ON and
PLT_FEM_DETECT currently behave the same.

Signed-off-by: Yair Shapira <yair.shapira@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-18 15:08:22 +03:00
Eliad Peller
4340d1cf5f wlcore: use basic rates for non-data packets
After the latest mac80211 changes, the sta has
the ap's sta pointer even before association.

This cause the auth and assoc frames to be sent
with the standard ap's rates, rather than the
basic rates.

Change the tx rate policy logic to use the regular
ap rates only for data packets (so control and mgmt
packets will be sent with basic rates)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-18 15:08:21 +03:00
Arik Nemtsov
42066f9a5f wlcore: don't issue SLEEP_AUTH command during recovery
During interface removal, don't adjust sleep_auth if we are during
recovery. Since the FW is potentially dead we shouldn't talk to it.

Reported-by: Yossi Wortzel <yossiw@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-18 15:08:21 +03:00
Arik Nemtsov
602c7595a1 wl18xx: fix bogus compile warning on cc config option
Initialize val to 0, to remove the following warning with
CONFIG_CC_OPTIMIZE_FOR_SIZE. The compiler used was gcc 4.4.1
(Sourcery G++ Lite 2010q1-202).

drivers/net/wireless/ti/wl18xx/io.c: In function 'wl18xx_top_reg_read':
drivers/net/wireless/ti/wl18xx/io.c:57: warning: 'val' may be used uninitialized in this function

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-18 15:08:21 +03:00
Igal Chernobelsky
bed483f7b4 wlcore: send EAPOLs using minimum basic rate for all roles
Send EAPOLs using minimum basic rate for AP, STA, p2p GO and Client.
The patch fixes p2p connection issue with Realtek device in p2p
certification test 5.1.13 (DEVUT reinvokes Persistent Group).

Signed-off-by: Igal Chernobelsky <igalc@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-18 15:08:21 +03:00
Yair Shapira
c68cc0f6eb wl18xx: add support for ht_mode in conf.h
ht_mode added to wl18xx conf struct in order to support different modes
from the configuration file, as well as module params, and by default
(working without a conf file and/or no module params).
the hack regarding conf.phy.low_band_component_type for each board
is now explicitly handled after parsing module params.
missing default values to wl18xx config added.
fix string module params not to have defaults (so if empty, param
can be taken from conf file).
update conf version to 3.

Signed-off-by: Yair Shapira <yair.shapira@ti.com>
Signed-off-by: Ido Reis <idor@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-18 15:08:21 +03:00
Eyal Shapira
8e945ff973 wlcore: don't re-configure wakeup conditions if not needed
suspend and resume callbacks configure wakeup conditions to the FW
which may be different between suspend and resume.
This feature is currently not utilized as both in suspend and resume
FW wakeup every 1 DTIM. Avoid waking up the chip and doing the FW command
unless there's an actual difference in the wakeup conditions.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-18 15:08:21 +03:00
Arik Nemtsov
45777c49ec wl18xx: alloc conf.phy memory to ensure alignemnt
We get DMA alignment trouble if the beginning of the conf.phy struct is
not aligned to 4 bytes. Use kmemdup to ensure alignment.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-18 15:08:21 +03:00
John W. Linville
38a0084063 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 2012-07-12 13:44:50 -04:00
Dan Carpenter
f7ace5f044 wlcore: fix a couple small memory leaks
We should free "chunk" here before returning the error code.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-10 12:10:15 -04:00
Arik Nemtsov
0344dcd3b5 wlcore: determine AP extra rates correctly
Don't use the ht_mode module parameter for determining AP supported
rates. We can rely on channel type, since HT40 won't be enabled if our
HT cap doesn't support it.

Enable MIMO only if there enough antennas, and rely on per-peer rate
limitation to prevent IOPs.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-07-10 12:10:15 -04:00
Eliad Peller
faae5aae2d wlcore: check ssid length against the correct element
commit 587cc28 ("wlcore: compare ssid_len before comparing
ssids") introduced a new bug - the ssid length from the
request struct was compared against the ssid length of
another request, instead the one of the cmd.

This might cause the sched scan request to fail
(with -EINVAL) in many cases.

Signed-off-by: Eliad Peller <eliad@wizery.com>
2012-07-10 12:10:15 -04:00
Arik Nemtsov
0fc1d2e9fe wl12xx/wl18xx: use a dynamic PS timeout of 1.5sec
It seems some parties have bad user experience when smaller values
are used. This should have little implications for power consumption,
since traffic is bursty in nature.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-07-10 12:10:15 -04:00
Arik Nemtsov
091185d6bc wlcore: define number of supported bands internally
Avoid using the IEEE80211_NUM_BANDS constant for arrays sizes etc, as
this can contain bands unsupported by the driver (e.g. 60Ghz). Use an
internal constant to determine the number of bands.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-07-10 12:10:14 -04:00
Arik Nemtsov
4455556d71 wlcore: don't set SDIO_FAILED flag when driver state is off
If some IO read/write fails while the FW is not loaded, a recovery
will not take place. This means the SDIO_FAILED flag will stay in place
forever and prevent further read/writes.

This can happen if a check for STATE_OFF was forgotten in some routine.

Take this opportunity to rename the flag to IO_FAILED, since we support
other buses as well.

Reported-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-07-10 12:10:14 -04:00
Yoni Divinsky
c45ee4ff1f wlcore: change the wait for event mechanism
wlcore needs to wait for certain events for example
for roc complete event. Usually the events are received
from the FW very fast, therefore wlcore can poll with
a short delay and if after a second the event was
not received yet poll with a long (1-5 msec) delay.

This implementation is similar to the sending of
commands to the FW.

Empirically the change reduced the wait for roc event
from ~10-40msec to 100s of usecs.

[replace udelay/msleep with usleep_range - Arik]

Signed-off-by: Yoni Divinsky <yoni.divinsky@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-07-10 12:10:14 -04:00
Ido Yariv
c24ec83bca wlcore: Prevent processing of work items during op_stop
The interrupt line is disabled in op_stop using disable_irq. Since
pending interrupts are synchronized, the mutex has to be released before
disabling the interrupt to avoid a deadlock with the interrupt handler.

In addition, the internal state of the driver is only set to 'off'
after the interrupt is disabled. Otherwise, if an interrupt fires after
the state is set but before the interrupt line is disabled, the
interrupt handler will not be able to acknowledge the interrupt
resulting in an interrupt storm.

The driver's operations might be called during recovery. If these
acquire the mutex after it was released by op_stop, but before the
driver's state is changed, they may queue new work items instead of just
failing. This is especially problematic in the case of scans, in which a
new scan may be scheduled after all scan requests were cancelled.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-07-10 12:10:14 -04:00
Eliad Peller
d8ae5a257c wlcore: implement .flush callback
implement the .flush() callback by simply calling wl1271_tx_flush().

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-10 12:10:14 -04:00
Luciano Coelho
66ef60ad03 wl12xx/wlcore: increase FW filename version
We have some API changes and new features in the new firmwares that
are not compatible with older drivers.  Increase the version of the FW
filenames for wl12xx to 5.

Additionally, remove the duplicate definitions from wlcore_i.h and
remove the MODULE_FIRMWARE macro calls from the SDIO and SPI modules,
since they're irrelevant there.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-10 12:10:13 -04:00
Yoni Divinsky
3df74f46d8 wlcore: add probe request templates for sched and one-shot scans
The driver configures the firmware template for probe requests during
the scan process.  If the same template is used for one-shot and sched
scans they will override each other when running scans simultaneously.

This fix works only on firmwares later than X.3.9.2.112 for single
role and X.3.9.2.23 for multi-role.

[Some cleaning-up and renaming of the quirk to something smaller --
Luca.]

Signed-off-by: Yoni Divinsky <yoni.divinsky@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-10 12:10:13 -04:00
Arik Nemtsov
b034fd6f4f wlcore: always clear recovery flag during recovery_work
If recovery is called when the FW is off, we should clear the recovery
flag. Otherwise we risk booting the driver in permanent pending-recovery
state.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-10 12:10:13 -04:00
Arik Nemtsov
aafec111dd wlcore: avoid debug prints during intended FW recovery
Don't read the FW panic log or print other debug data when recovery is
intended (i.e. FW type switch). This takes valuable time and can be
confusing to the user.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-10 12:10:13 -04:00
Arik Nemtsov
fd92dc5d5d wlcore: remove recover cmd from testmode
This command is buggy (doesn't take the mutex) and unused. Instead, the
"start_recovery" file is used for the same purpose. Remove the code but
keep the command constant to avoid breaking the testmode ABI.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-10 12:10:13 -04:00
Arik Nemtsov
8cdc44aab2 wlcore: don't stop tx queue via watermark if already stopped
If a Tx queue is currently stopped because of our Tx watermark flow
control, don't stop it again. This causes a warning to appear.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-10 12:10:12 -04:00
Arik Nemtsov
4a1ccce852 wlcore/wl12xx/wl18xx: check min FW version
Refuse to boot if the FW version is too old. The minimum version is set
per chip, with the option of setting it per PG in the future.

When boot fails because of an old FW, display a helpful message.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-10 12:10:12 -04:00
Victor Goldenshtein
01b3c0e4df wlcore: enable sched scan while connected
New wl12xx firmware supports scheduled scans also while connected.
Stop blocking sched scan requests when connected and add a quirk to
block in hardware that don't support it (currently wl18xx doesn't).

This requires FW version 6/7.3.10.2.112 for single-role and
6/7.5.6.0.25 for multi-role.

Signed-off-by: Victor Goldenshtein <victorg@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-07-10 12:10:12 -04:00
John W. Linville
0af5491c2f Merge branch 'for-john' of git://git.sipsolutions.net/mac80211-next 2012-07-09 16:34:39 -04:00
John W. Linville
635d999fd3 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
Conflicts:
	net/mac80211/mlme.c
2012-07-09 16:34:34 -04:00
John W. Linville
8732baafc3 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
Conflicts:
	drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
2012-06-29 12:42:14 -04:00
John W. Linville
42fb0b0278 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2012-06-29 12:07:37 -04:00
David S. Miller
b26d344c6b Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/caif/caif_hsi.c
	drivers/net/usb/qmi_wwan.c

The qmi_wwan merge was trivial.

The caif_hsi.c, on the other hand, was not.  It's a conflict between
1c385f1fdf ("caif-hsi: Replace platform
device with ops structure.") in the net-next tree and commit
39abbaef19 ("caif-hsi: Postpone init of
HIS until open()") in the net tree.

I did my best with that one and will ask Sjur to check it out.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-28 17:37:00 -07:00
Johannes Berg
b1fbd46976 Merge remote-tracking branch 'wireless-next/master' into mac80211-next 2012-06-28 13:45:58 +02:00
Johannes Berg
dfb89c56ad cfg80211: don't allow WoWLAN support without CONFIG_PM
When CONFIG_PM is disabled, no device can possibly
support WoWLAN since it can't go to sleep to start
with. Due to this, mac80211 had even rejected the
hardware registration. By making all the code and
data for WoWLAN depend on CONFIG_PM we can promote
this runtime error to a compile-time error.

Add #ifdef around all WoWLAN code to remove it in
systems that don't need it as they never suspend.

Cc: Kalle Valo <kvalo@qca.qualcomm.com>
Acked-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-27 17:55:11 +02:00
Luciano Coelho
a572ac1a3d Merge branch 'wl12xx-next' into for-linville 2012-06-26 22:43:29 +03:00
Eyal Shapira
680c6055b9 wlcore: print stack trace in every recovery
As recovery queuing can now occur from multiple code paths
it's convenient to know what triggered it in all cases
other than an intended recovery which is part of the
switch between single role to multi role.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-26 20:33:42 +03:00
Eyal Shapira
6c15c1aae2 wlcore: queue recovery in case of bus errors during cmd_remove_peer
Following the addition of propagating errors from the bus ops
there's a need to distinguish between bus errors (including timeout)
and a legitimate timeout occuring in cmd_wait_for_event_or_timeout.
In case of real bus errors we need to queue recovery even in cases
where a timeout on a response from the FW to a command is acceptable.

Reported-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-26 20:30:37 +03:00
Eyal Shapira
7a50bdfb81 wlcore: fix broken TX due to wrong queuing of recovery
commit 14bba17b "wl12xx: Propagate errors from wl1271_raw_write32"
breaks down TX in certain scenarios. wl1271_irq_locked() propagates
errors from wl1271_tx_work_locked however it may return -EBUSY
when the FW queues are full which is a legitimate case and not a
a real error. In this case a recovery is triggered by wl1271_irq
and this keeps repeating itself so TX is completely broken.
Fix it by avoiding propagating return values as errors even if they
aren't. Only bus (SDIO or SPI) ops failures would be progagated
as only these should trigger recovery.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-26 20:30:03 +03:00
Luciano Coelho
8b425e62d9 wlcore: fix some failure cases in wlcore_probe()
We need to release the IRQ if hw_info() or identify_chip() fails.  And
we need unregister the HW with mac80211 if there are any failures
after it's registered.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-26 20:20:19 +03:00
Luciano Coelho
e59bec1628 wl18xx: deprecate PG1 support
The new PG2 version of the chip has a few differences in terms of FW
API if compared to PG1.  PG1 is just a sample that shouldn't be used
in real life, so to avoid having to handle both separately, mark the
PG1 version as deprecated and bail out during probe.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-26 20:20:17 +03:00
David S. Miller
e486463e82 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/usb/qmi_wwan.c
	net/batman-adv/translation-table.c
	net/ipv6/route.c

qmi_wwan.c resolution provided by Bjørn Mork.

batman-adv conflict is dealing merely with the changes
of global function names to have a proper subsystem
prefix.

ipv6's route.c conflict is merely two side-by-side additions
of network namespace methods.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-25 15:50:32 -07:00
Randy Dunlap
ff0b804632 wlcore: drop INET dependency
Mainline build reports:

warning: (WL12XX) selects WLCORE which has unmet direct dependencies (NETDEVICES && WLAN && WL_TI && GENERIC_HARDIRQS && MAC80211 && INET)

The INET dependency was added in commit
3c6af5b54f:
    wl1271_main.c:(.text+0x271052): undefined reference to `unregister_inetaddr_
notifier'
    wl1271_main.c:(.text+0x2714d7): undefined reference to `register_inetaddr_no
tifier'

    Driver is doing some filtering based on IP addresses...

but this driver no longer has that code and it builds fine even when
CONFIG_INET is not enabled, so drop that dependency and eliminate the
kconfig warning message.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Luciano Coelho <luciano.coelho@nokia.com>
Cc: John W. Linville <linville@tuxdriver.com>
Acked-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-25 15:14:13 -04:00
Arik Nemtsov
725b82775e wlcore: prevent recovery in the middle of resume
Take the mutex early in the resume handler and use the locked version of
the IRQ routine. This ensures any recoveries queued will only take place
after resume has fully completed.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-23 09:32:33 +03:00
Arik Nemtsov
b5b45b3cbd wlcore: refactor threaded IRQ routine
Separate the threaded IRQ handling routine into two functions.
The outer function takes the mutex and calls recovery on errors. It also
performs a Tx-path optimization to avoid redundant works.

The inner function is simplified - all calls to recovery are removed and
it assumes the lock is taken. The locked variant will be reused elsewhere.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-23 09:32:32 +03:00
Arik Nemtsov
c439a1ca3b wlcore: check Rx-filter functions in the suspend path
Propagate some missing return values for Rx-filter related functions.
This and makes sure we always fail the suspend in case of SDIO errors.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-23 09:32:32 +03:00
Arik Nemtsov
ea0a3cf95e wlcore: force recovery on resume if suspended without recovering
If an error is detected after mac80211 is already suspended, the recovery
work will not be queued. This will leave the driver in a bad state on
resume.

Detect this in the resume op and re-queue a recovery.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-23 09:32:31 +03:00
Arik Nemtsov
1d23396d9d wlcore: don't allow SDIO read/writes after failure
Set a flag and after the first read/write failure is encountered.
This flag will disallow further SDIO read/writes until op_stop() is
executed, which will clear all flags.

This prevents further errors from occurring, since one error usually
indicates that IO operations won't work anymore until the chip is
rebooted.  By blocking more calls, we avoid extra timeouts and having
to wait for them to occur.

[Added second paragraph explaining why the change is needed. -- Luca]

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-23 09:28:54 +03:00
Arik Nemtsov
96caded8d2 wlcore: cancel suspend when recovery is pending
We wish to postpone suspend if recovery is pending. This will make sure
the FW is in a good state and perform wowlan wakeup.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-22 22:54:14 +03:00
Arkady Miasnikov
e1262efb9b wlcore: access the firmware memory via debugfs
Applications running in the user space needs access to the
memory of the chip. Examples of such access
- read/write global variables
- access to firmware log
- dump memory after firmware panic event

Arbitrary 4-bytes aligned location can be accessed by
read/write file wlcore/mem

[Check return value of wlcore_raw_read/write and wlcore_set_partition
calls as required by the recent IO changes. -- Luca]

Signed-off-by: Arkady Miasnikov <a-miasnikov@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-22 22:52:01 +03:00
Ido Yariv
f1a26e638e wlcore: Force checking of io functions' return values
All io functions' return values should be propagated and handled. Add a
__must_check annotation to verify that the return values are checked and
to avoid future mistakes.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-22 10:49:45 +03:00
Ido Yariv
2b80040782 wlcore: Propagate errors from wl1271_read_hwaddr
Propagate errors from wl1271_read_hwaddr. This function is only used
when reading the FW log (following a recovery), so don't read the FW log
in case of a bus error.

Also rename prefixes of wlcore functions which their prototypes had to
be changed.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-22 10:49:45 +03:00
Ido Yariv
b0f0ad39e3 wlcore: Propagate errors from wl1271_raw_write32
Propagate errors from wl1271_raw_write32 and request for recovery when
appropriate.
Also rename prefixes of wlcore functions which their prototypes had to
be changed.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-22 10:49:44 +03:00
Ido Yariv
6134323f42 wlcore: Propagate errors from wl1271_raw_read32
Propagate errors from wl1271_raw_read32. Since the read functions had no
way of returning errors in-band, change their prototypes.
Also rename prefixes of wlcore functions which their prototypes had to
be changed.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-22 10:49:33 +03:00
Ido Yariv
eb96f841b9 wlcore: Propagate errors from wl1271_write
Propagate errors from wl1271_write and request for recovery when
appropriate.
Also rename prefixes of wlcore functions which their prototypes had to
be changed.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-22 10:46:34 +03:00
Ido Yariv
045b9b5f41 wlcore: Propagate errors from wl1271_read
Propagate errors from wl1271_read and request for recovery when
appropriate.
Also rename prefixes of wlcore functions which their prototypes had to
be changed.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-22 10:46:34 +03:00
Ido Yariv
8b7c0fc356 wlcore: Propagate errors from wlcore_raw_*_data functions
wlcore_raw_read_data is called when the FW status is read which happens
while handling interrupts and when the FW log is read following a
recovery. Request a recovery in the former case, and don't read the FW
log in case the FW status read failed.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-22 10:46:34 +03:00
Ido Yariv
0c2a6ce04e wlcore: Change raw io functions to return errors
Make wl1271_raw_write and wl1271_raw_read return errors so the driver
could handle these appropriately.
Since the prototype has changed, also rename the prefix of these
functions to wlcore.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-22 10:46:34 +03:00
Ido Yariv
02eb1d9d3b wlcore: Change read/write ops to return errors
While bus operations may fail, either due to HW or FW issues, these are
never propagated to higher layers. As a result, the core driver has no
way of knowing that the operations failed, and will only recover if high
level logic requires it (e.g. no command completion).

Change read/write bus operations to return errors to let higher layer
functionality handle these.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-22 10:46:34 +03:00
Ido Yariv
b666bb7f2f wlcore: Disable interrupts while recovering
In case a recovery is initiated, the FW can no longer be trusted, and
the driver should not handle any new FW events.

Disable the interrupt handler when a recovery is scheduled and balance
it back in the op_stop callback.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-22 10:46:34 +03:00
Ido Yariv
645865fc37 wlcore: Fix sdio out-of-sync power state
wl12xx_sdio_power_off() manually powers down the card regardless of the
runtime pm state. If wl12xx_sdio_power_on() is called before the card
was suspended by runtime PM, it will not power up the card.

As part of the HW detection, the chip's power is toggled. Since this
happens in the context of probing sdio, the power reference counter will
be higher than zero. As a result, when wl12xx_sdio_power_off() is
called, the chip will be powered down while still having a positive
power reference counter. If the interface is quickly activated, the
driver might try to transfer data to a powered off chip.

Fix this by ensuring that wl12xx_sdio_power_on() explicitly powers on
the chip in case runtime pm claims the chip is already powered on. To
avoid cases in which it is not possible to determine if the chip was
really powered on (card's power reference counter is positive), operate
on the mmc_card instead of the function.

Also verify that the chip is indeed powered on before powering off, to
avoid wrong reference counter values in error cases.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-22 10:46:33 +03:00
Luciano Coelho
da0b1baa94 Merge branch 'wl12xx-next' into for-linville
Conflicts:
	drivers/net/wireless/ti/wl18xx/main.c
2012-06-21 17:31:46 +03:00
Luciano Coelho
41844076c5 wl18xx: use %zu for size_t arguments in printk calls
After 934b9d1e (wl18xx: avoid some -Wformat warnings) there was still
a warning with (at least) ARM gcc version 4.4.1:

drivers/net/wireless/ti/wl18xx/main.c: In function 'wl18xx_conf_init':
drivers/net/wireless/ti/wl18xx/main.c:1026: warning: format '%ld' expects type 'long int', but argument 2 has type 'unsigned int'

Fix this by using %zu for the both formats, since the fw->size and the
macro (derived from sizeof()) are size_t.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-21 16:48:21 +03:00
Arik Nemtsov
93fb19bbb3 wl18xx: split siso40 HT cap between 2Ghz and 5Ghz
Remove the cap IEEE80211_HT_CAP_DSSSCCK40 from the 5Ghz variant of
the siso40 HT capabilities. It is meaningless in 5Ghz.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-21 16:48:20 +03:00
Arik Nemtsov
fa2adfcdbd wl18xx: sane defaults for HT capabilities
Introduce a default set of HT capabilities that are set according to the
number of antennas on the board. Move the HT setting code down to allow
the number of antennas to be set (and optionally overridden) before it.

Remove the "mimo" HT option, since the default mode now enables MIMO is
possible.

Use this opportunity to add a helper function for setting HT
capabilities and reduce the volume of the code a bit.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-21 16:48:20 +03:00
Arik Nemtsov
68a847f2c1 wl18xx: explicitly remove the 5Ghz MIMO HT cap
The 18xx chip does not support MIMO in 5Ghz. Use the siso20 HT cap as
fallback in 5Ghz when "mimo" is requested.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-21 16:48:19 +03:00
Igal Chernobelsky
1e41213fe7 wlcore: read FW logs from FW memory on watchdog recovery
FW uses a few memory blocks as a buffer to accumulate FW logs before
transmitting them to the host over SDIO. When FW WatchDog recovery
occurs, the last FW traces are still pending in the buffer. Driver is
to read these FW traces whether log mode is continuous or on demand.

FW memory blocks allocated for the log buffer are handled as a link list:
the first 4 bytes in each memory block contain FW address to the next block.
The end of list condition depends on FW log mode:
- on demand: the list is cyclic, the next address is equal to the first address
- continuous: the address is  equal to 0x2000000

Log data resides inside FW memory block with offset depending on
logger mode:
- on demand:  4 bytes (address of the next memory block)
- continuous: 4 bytes and Rx Descriptor structure size

Described FW logger API is backward compatible with previous FW versions.

Signed-off-by: Igal Chernobelsky <igalc@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-21 16:48:19 +03:00
Yoni Divinsky
add779a073 wlcore: do not report noise level in get survey op
The get survey op expects the low level driver to report
the noise level for a a given channel.

The noise calculated in wlcore is (rssi-snr/2), but since
the snr reported by the FW is a derivative from the rssi
this calculation is useless, and should not be reported
to the user space.

Reporting incorrect noise, results in the wpa_supplicant
miscalculating the roaming candidate priority, thus causing
a situation where an AP with a lower rssi level would be
chosen over a better AP.

Signed-off-by: Yoni Divinsky <yoni.divinsky@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-21 16:48:18 +03:00
Arik Nemtsov
bf7c46a767 wl18xx: set Tx align quirk for PG2
Before patch b5d6d9b (wlcore/wl12xx/wl18xx: don't use TX align quirk
for wl127x), this was automatically set for all platforms. As this
should now be set explicitly, set it for PG2 as well.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-21 16:48:18 +03:00
Arik Nemtsov
09aad14f65 wl18xx: increase Rx descriptors for PG2
New PG2 firmwares have additional Rx descriptors.

Add a module parameter to manually set the number of Rx descriptors for
older versions (PG1). We cannot discriminate based on chip-id, since
this value must be set on probe.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-21 16:48:04 +03:00
Arik Nemtsov
2f18cf7c3b wlcore: reconfigure sleep_auth when removing interfaces
The sleep_auth value of the last interface to be set up prevailed when
an interface was removed. Take care of this by correctly configuring the
value according to the remaining STA/AP interfaces.

Take this opportunity to refactor the sleep_auth setting code for better
readability.

[Small style fix. -- Luca]

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-21 12:51:55 +03:00
Arik Nemtsov
66340e5b25 wlcore: allow setting sleep_auth before interface init
Hold a value for sta_sleep_auth that is amenable to change by debugfs.
When detecting a legal value in this variable on interface init, use it
as an override value for sleep_auth.

This makes debugging more intuitive using the debugfs value.

Increment the conf version since we added an element to the conf
structure.

Note: An AP going up will always set sleep_auth to PSM_CAM.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-21 12:51:41 +03:00
Luciano Coelho
26b5858a67 wlcore: add a debugfs entry to allow changing the sleep mode by hand
For FW debugging purposes, we may need to change the sleep mode
(aka. sleep_auth) by hand, and set it to the mode we want.  To allow
this, a debugfs entry is added.

Now we store the sleep_auth value that has been set and use that
instead of the quirk to decide whether we should enter ELP or not.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-21 12:44:17 +03:00
Arik Nemtsov
c954910bc4 wlcore: suppress error message on Rx BA session removal
The ampdu_action() function is called on the reconfig() path to remove
existing Rx BA sessions. Since these don't exist for the low level
driver, we output an error message. Turn the message into a debug
message for now, until the mac80211 reconfig flow is changed.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-21 12:43:06 +03:00
Grazvydas Ignotas
84b60c144c wl1251: send filters to firmware as they are set
Firmware supports changing filters using ACX_RX_CFG command,
so use it in .configure_filter callback. Firmware also supports
probe request filtering, so add it too along the way.
This will also re-enable BSSID filter which is now removed by
join command while associating.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-20 15:14:45 -04:00
Grazvydas Ignotas
a2d2bb8675 wl1251: fix filtering support
This driver has a hack in cmd.c which effectively disables all filtering.
This seems to be triggering a firmware bug where it stops reporting any
rx packets after random time on some routers, which is eliminated (or at
least appears much more rarely) when filtering is on.
I have found that only BSSID filter needs to be disabled for association
to work, so disable only that instead of all filtering.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-20 15:14:44 -04:00
Grazvydas Ignotas
7e05bedca0 wl1251: remove unused filter_work
filter_work is never used, remove it.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-20 15:14:42 -04:00
Grazvydas Ignotas
a859e4d659 wl1251: Fix memory leaks in SPI initialization
This patch fixes two memory leaks in the SPI initialization code.

Patch based on old maemo patch by:
Yuri Ershov <ext-yuri.ershov@nokia.com>

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-20 14:10:25 -04:00
Grazvydas Ignotas
0d776fcdaf wl1251: always report beacon loss to the stack
Always report beacon loss to the stack, not only when in powersave
state. This is because there's possibility that the driver disables
PSM before it handles old BSS_LOSE_EVENT, so beacon loss has to be
reported.

Patch based on old maemo patch by:
Janne Ylalehto <janne.ylalehto@nokia.com>
Juuso Oikarinen <juuso.oikarinen@nokia.com>
Luciano Coelho <luciano.coelho@nokia.com>
Yuri Ershov <ext-yuri.ershov@nokia.com>

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-20 14:10:24 -04:00
Grazvydas Ignotas
cae6247db0 wl1251: fix TSF calculation
Cast MSB part of current TSF to u64 to prevent loss of most
significant bits. MSB should also be shifted by 32.

Patch based on old maemo patch by:
Yuri Kululin <ext-yuri.kululin@nokia.com>
Yuri Ershov <ext-yuri.ershov@nokia.com>

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-20 14:10:24 -04:00
Eliad Peller
bcab320ba2 wlcore: declare interface combinations
Advertise to the stack that the wlcore driver
supports multiple interfaces for a single device.
This is required in order to be able to run
multirole with mac80211.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Yoni Divinsky <yoni.divinsky@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-13 21:57:10 +03:00
Yair Shapira
b0b09e312a wlcore: add print logs of radio_status in case of BIP calibration
FEM BIP calibration may fail with fw/phy radio status. In order to
recognize these failures a log is added to the calibration answer
(TEST_CMD_P2G_CAL)

Signed-off-by: Yair Shapira <yair.shapira@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-13 21:56:37 +03:00
Yair Shapira
05f48d4574 wlcore/wl12xx: add support for HP and SKW FEM radio manufacturers
Add support for HP (High Performance TQS fem type 3) and SKW
(fem type 2). This is done by increasing the number of FEM
manufacturers to 4.

Usually FEM parameters from ini file are read from nvs file and
passed to firmware using TEST_CMD_INI_FILE_RADIO_PARAM. Still,
because the nvs file has only place for 2 FEMs, we need to pass the
new FEM types information in one of the available entries.

This is done by mapping new fem types 2,3 to entry 0. This solution
works for manual FEM selection. AutoDetect-FEM still support only
fem types 0 and 1.

Signed-off-by: Yair Shapira <yair.shapira@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-13 21:52:56 +03:00
Eliad Peller
2812eef151 wlcore: update basic rates on channel switch
On channel switch we have to update the basic rates, in
order to reflect possible band changes (otherwise, we
might start beaconing on 11a with the default rates
of 11g).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-13 21:44:30 +03:00
Eyal Shapira
8f1a8684a5 wlcore: send EAPOLs with basic rate policy
EAPOLs are sent at high rates as they are considered
data packets. Some APs like Motorola Symbol AP7131 and AP650
don't respond well to these rates and don't respond with
EAPOL 3/4 consistently. When sending EAPOL 2/4 at 54Mbps
we've seen approx 30% success rate in getting EAPOL 3/4 response
while using 11Mbps we got 100% success.
To increase the chances of successful 4-Way handshake with
such APs, send EAPOLs with basic rate policy in order to avoid
high rates.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-13 21:44:18 +03:00
Eyal Shapira
04414e2aa5 wlcore: avoid using NET_IP_ALIGN for RX alignment
NET_IP_ALIGN can be overriden on different architectures
and therefore cannot be used in the RX path to account
for the 2 bytes added for alignment (either by the FW
in the case of 18xx or by the host for 12xx).
Instead use an internal define.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-13 21:44:10 +03:00
John W. Linville
0440507bbc Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 2012-06-12 14:25:04 -04:00
John W. Linville
934b9d1ed7 wl18xx: avoid some -Wformat warnings
CC      drivers/net/wireless/ti/wl18xx/main.o
drivers/net/wireless/ti/wl18xx/main.c: In function ‘wl18xx_conf_init’:
drivers/net/wireless/ti/wl18xx/main.c:1024:3: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long unsigned int’ [-Wformat]
drivers/net/wireless/ti/wl18xx/main.c:1024:3: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘size_t’ [-Wformat]

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-08 14:24:53 -04:00
Arik Nemtsov
3e3947fffc wlcore/wl12xx/wl18xx: make NVS file optional for wl18xx
Don't spew errors when we can't find the NVS file in wlcore. Instead
fail the wl12xx boot HW op if the NVS isn't found.

Take this opportunity to remove some dead code from register_hw()
which looks for the NVS again needlessly.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-08 09:52:06 +03:00
Arik Nemtsov
17d97719dc wl18xx: clean up phy module parameters
Give all wl18xx phy module paramters -1 as a default value, indicating
the paramter was not set. Add previous default values to the default
18xx priv conf structure.

Remove the board_type field from wl18xx priv. The field with the same
name inside the phy conf is good enough for our purposes.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-08 09:42:09 +03:00
Arik Nemtsov
d61c6b5550 wl18xx: align wl18xx_conf_phy with FW variant and remove it
wl18xx_conf_phy represents part of the FW native wl18xx_mac_and_phy_params
structure. Remove it and replace the phy part of the wl18xx conf with the
FW bound structure. This allows us to set/override all members.

Increment the wlconf version to ensure compatibility with the new
structure

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-08 09:42:09 +03:00
Ido Reis
8dd8e53c6f wl18xx: update fw statistics
Aligned to the struct in FW 8.2.0.0.91 and updated the debugfs entries
accordingly.

Signed-off-by: Ido Reis <idor@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-08 09:41:56 +03:00
Arik Nemtsov
e27454b013 wl18xx: allow FW-log by default for PG2.0
This is supported by new FW versions (.88+).

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-08 09:14:19 +03:00
Luciano Coelho
640dfb9b85 wl18xx: read configuration structure from a binary file
Instead of using the hardcoded configuration structure, try to read it
from a "firmware" file called wl18xx-conf.bin.  If the file doesn't
exist, fall back to the hardcoded version.  If the file exists but is
illegal, bail out.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-08 09:14:08 +03:00
Luciano Coelho
18b70ac9c7 wlcore/wl18xx: export conf struct in a debugfs file
Add conf file header structure, magic and version values and export
the entire conf struct in debugfs.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-08 09:14:08 +03:00
Luciano Coelho
34bacf73c6 wlcore/wl18xx: the conf structs must be packed so they can be exported
Since we are now going to export the conf structure and read it from a
file, it should be packed to avoid surprises with padding bytes.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-08 09:14:08 +03:00
Luciano Coelho
b551a3c9eb wlcore: use u8 instead of enum for bcn_filt_mode
Since we will export the conf structure as a file, we need to use well
defined types.  Instead of using enum, whose size may vary, use u8 for
bcn_filt_mode instead.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-08 09:14:08 +03:00
Luciano Coelho
648f6ed9f7 wlcore/wl18xx/wl12xx: use u8 instead of bool for host_fast_wakeup_support
The conf structure is going to be exported to a file, so we should use
only well defined types.  bool is not well defined and may vary from
platform to platform, so change the host_fast_wakeup_support type to
u8 instead.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-08 09:14:08 +03:00
Luciano Coelho
9c6ead570c wlcore: export raw binary with the FW statistics in debugfs
Instead of parsing all the binary data returned by the firmware, we
should simply export the binary and let the userspace do the parsing.

This commit adds a new file to debugfs to do that.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-08 09:14:08 +03:00
Luciano Coelho
f74ea74b82 wl18xx: add support to clear FW statistics
This patch calls ACX_CLEAR_STATISTICS to clear the firmware
statistics.  The trigger is a new debugfs file called
clear_fw_statistics in the fw_stats directory.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-08 09:14:07 +03:00
Eyal Shapira
3e8d69352b wlcore: add debugfs control over rx interrupt pacing
Add control over several conf fields which combined
control the rx interrupt pacing mechanism, that is avoiding
getting an interrupt following a single frame rx but instead
have the FW trigger the interrupt only after a certain
amount of frames received or a timeout.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-08 09:14:07 +03:00
Eyal Shapira
bc8e261233 wlcore: add support macros to easily add conf debugfs entries
The current debugfs code contains too much code duplication
of bolierplate code. Add some macro magic to avoid this and
enable adding new debugfs entries by using just a few lines.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-08 09:14:07 +03:00
Grant Erickson
e16de2c4fc wl12xx: Add support for an external 26 MHz crystal source
Add support for an external 26 MHz crystal source.

[Changed wl->ref_clock to priv->ref_clock -- Luca.]

Signed-off-by: Grant Erickson <marathon96@gmail.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-07 18:14:41 +03:00
Ido Reis
9fccc82e19 wl18xx: pad only last frame in aggregration buffer for PG2
In PG2 only the last frame in the aggregate buffer should be
aligned to the sdio block size. This frame's header msb should be
set to 0, while in all the previous frames in the aggregation
buffer, this bit should be set to 1.

[Add a HW op for setting the frame ctrl bit only for 18xx. Other minor
cleanups - Arik]

[Make the pre_pkt_send operation optional -- Luca]

Signed-off-by: Ido Reis <idor@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-07 18:11:06 +03:00
Ido Reis
f5755fe96c wl18xx: PG2.0 HW Watch dog interrupt support
In PG2, the HW watchdog interrupt occupies bit0 of the event vector, and
the SW watchdog is relocated to bit9. We perform the relocation
globally, as there's only one watchdog bit on previous platforms (bit0).

[Only mask in the new bit9 for platforms supporting it. This avoids
spurious events on other platforms - Arik]

Signed-off-by: Orit Brayer <orit@ti.com>
Signed-off-by: Ido Reis <idor@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-07 18:11:01 +03:00
Ido Reis
16ea473321 wl18xx: FW/PHY arguments added for PG2
PG2 requires 4 new parameters that to be passed to the PHY.

Use the actual PHY initialization struct size for the mem size of the
PHY_INIT section, to account for additions in params.

[Make sure PG1 still gets the original struct - Arik]

Signed-off-by: Ido Reis <idor@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-07 18:10:57 +03:00
Ido Reis
73395a79df wl18xx: support PG2 version of the chip
PG2 has a unique chip id. It supports similar HW quirks.

Signed-off-by: Ido Reis <idor@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-07 18:10:52 +03:00
Ido Reis
4085f641e7 wl18xx: fix PHY_INIT addresses mem size
was hardcoded 252, now uses the parameters struct size.

Signed-off-by: Ido Reis <idor@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-07 18:10:48 +03:00
Victor Goldenshtein
97511b15b1 wlcore: set channels 12-14 as pactive for sched scan
Introduce “pactive” scan mode – which instructs the fw to
perform a passive scan until an activity/energy is detected
on these channels, once energy detected the channel becomes
active.

Signed-off-by: Victor Goldenshtein <victorg@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-06 19:40:27 +03:00
Eliad Peller
587cc286c8 wlcore: compare ssid_len before comparing ssids
When comparing 2 ssids the ssid_len must be taken
into account. Otherwise, a substring will be treated
as equal.

This bug might cause ssids to get scanned as
public ssids (rather than hidden), resulting in
broadcast probe request (instead of ssid-specific
ones)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-06 19:33:28 +03:00
Yoni Divinsky
78f85f5066 wlcore: add role_id to all the sched_scan commands
Due to a need by the firmware when working in multirole
the role id needs to be added to the structs of the
following commands:
CMD_CONNECTION_SCAN_CFG, CMD_CONNECTION_SCAN_SSID_CFG,
CMD_START_PERIODIC_SCAN, CMD_STOP_PERIODIC_SCAN

Signed-off-by: Yoni Divinsky <yoni.divinsky@ti.com>
Signed-off-by: Igal Chernobelsky <igalc@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-06 19:33:27 +03:00
Joe Perches
2c208890c6 wireless: Remove casts to same type
Adding casts of objects to the same type is unnecessary
and confusing for a human reader.

For example, this cast:

        int y;
        int *p = (int *)&y;

I used the coccinelle script below to find and remove these
unnecessary casts.  I manually removed the conversions this
script produces of casts with __force, __iomem and __user.

@@
type T;
T *p;
@@

-       (T *)p
+       p

Neatened the mwifiex_deauthenticate_infra function which
was doing odd things with array pointers and not using
is_zero_ether_addr.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-06 09:31:33 -07:00
Eliad Peller
186b5a7c93 wl12xx/wl18xx: add erp protection IE to the beacon filter
We have to reconfigure the fw when erp protection should
be enabled/disabled. Pass beacons containing changes
in the ERP protection IE, so we could analyze them.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-06 19:28:06 +03:00
Eliad Peller
9f5b424d6c wl12xx: send beacon loss events to userspace
Send beacon loss events to userspace, so it will be
able to initiate roaming before disconnection

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-06 19:28:06 +03:00
Yoni Divinsky
afbe37185c wlcore: do not send stop fwlog cmd if fw is hanged
If the driver received a watchdog interrupt then the
assumption is that the fw is hanged. Avoid sending
the stop fwlog command in case of a watchdog recovey
to avoid waiting for the 2 seconds timeout of the command.

Signed-off-by: Yoni Divinsky <yoni.divinsky@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-06 19:28:06 +03:00
Arik Nemtsov
a1c597f2b2 wlcore/wl12xx/wl18xx: implement op_set_key per HW arch
The 12xx set_key just calls the common wlcore_set_key function, in order
to program the keys into the FW.

The 18xx variant changes the spare block count when a GEM or TKIP
key is set. Also modify the get_spare_blocks HW op for 18xx to return
the correct numbers of spare blocks, according to what is currently
set in FW.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-06 19:28:05 +03:00
Arik Nemtsov
2c38849f4a wlcore: stop queues on Tx flush
Stop network queues during Tx flush, and also drop other internal
mac80211 packets (mgmt) that may arrive when the queues are stopped.

When flush is done all driver queues are clear, forcefully if needed.

Protect the Tx flush operation with a new mutex, to prevent concurrency
that can mess us queue state.

Based on a patch by Eliad Peller <eliad@wizery.com>

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-06 19:28:05 +03:00
Arik Nemtsov
6639611467 wlcore: add stop reason bitmap for waking/starting queues
Allow the driver to wake/stop the queues for multiple reasons. A queue
is started when no stop-reasons exist.

Convert all wake/stop queue calls to use the new API.

Before, a stopped queue was almost synonymous a high-watermark on Tx.
Remove a bit of code in wl12xx_tx_reset() that relied on it.

Internal packets arriving from mac80211 are also discarded when a queue
is stopped. A notable exception to this is the watermark reason, which
is a "soft"-stop reason. We allow traffic to gradually come to a halt,
but we don't mind spurious packets here and there. This is merely a flow
regulation mechanism.

Based on a similar patch by Eliad Peller <eliadWizery.com>.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-06 19:28:05 +03:00
Arik Nemtsov
32bb2c03f9 wlcore/wl12xx/wl18xx: handle spare blocks spacial cases per arch
Add a HW op for getting spare blocks.

12xx cards require 2 spare blocks for GEM encrypted SKBs, regardless
of VIFs or keys programmed into the FW.

18xx cards require 2 spare blocks when there are any connected TKIP or
GEM VIFs. For now always return 2 spare blocks, as this works with all
networks. The special case TKIP/GEM functionality is added at a later
patch.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-06 19:28:05 +03:00
Arik Nemtsov
2c0133a437 wlcore/wl12xx/wl18xx: introduce quirk to remove TKIP header space
18xx chips do not require extra space in the TKIP header. Introduce a
new HW quirk to allow us to make this feature arch-specific. 12xx chip
will now have this quirk.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-06 19:28:04 +03:00
Victor Goldenshtein
a4203c6453 wlcore: wait for roc complete only for the first roc command
In some multi role scenarios the driver might send multi
roc requests without sending a croc first, the fw queues
those requests and starts service the next roc request as
soon as the driver sends a croc for the previous one. So,
if the fw rocs on channel X and driver asks to roc also
on channel Y, the fw will not start service Y (and will
not send roc complete event for this request) until the
driver releases the fw with croc X.

Signed-off-by: Victor Goldenshtein <victorg@ti.com>
Signed-off-by: Igal Chernobelsky <igalc@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05 20:24:32 +03:00
Victor Goldenshtein
e832837bbb wlcore: don't enable BET for high basic rates
The beacon early termination is not relevant for
high basic rates, which doesn't contribute
anything to the PS and only adds unnecessary FW
work.

Enable BET only if the basic rate is less than 9
Mbps.

Signed-off-by: Ziv Riesel <zivriesel@ti.com>
Signed-off-by: Victor Goldenshtein <victorg@ti.com>
Signed-off-by: Igal Chernobelsky <igalc@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05 20:24:32 +03:00
Victor Goldenshtein
461b958fd6 wl18xx: fix fm_coex parameters configuration
Wrong fm_coex parameters were set during wl18xx
init phase, fix it.

Signed-off-by: Ziv Riesel <zivriesel@ti.com>
Signed-off-by: Victor Goldenshtein <victorg@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05 20:24:32 +03:00
Victor Goldenshtein
836d3f2058 wl12xx: fix fm_coex parameters configuration
Wrong fm_coex parameters were set during wl12xx
init phase, fix it.

Signed-off-by: Ziv Riesel <zivriesel@ti.com>
Signed-off-by: Victor Goldenshtein <victorg@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05 20:24:32 +03:00
Arik Nemtsov
5a344b87ce wlcore: remove duplicate BUG_ON during recovery
This BUG_ON also ignored the INTENDED_FW_RECOVERY flag. This would
result in a BUG() when using the bug_on_recovery module parameter during
multi-role.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05 20:24:31 +03:00
Eliad Peller
0c21298435 wlcore: increase WL1271_EVENT_TIMEOUT
In some cases, the ROC_COMPLETE event might exceed the
current timeout (750 msec). Increase it to 1 sec.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05 20:24:31 +03:00
Eliad Peller
d1bcb53f91 wlcore: flush tx on CHANGE_CHANNEL
On CHANGE_CHANNEL indication, we should flush all the
queued tx frames, so they will be sent on the correct
(current) channel.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05 20:24:31 +03:00
Yoni Divinsky
feb47eb86b wlcore: fix the CONF_TX_AC_ANY_TID to be 0xff
In the enum conf_tx_ac CONF_TX_AC_ANY_TID should
be 0xff to match the firmware's implementation.

Signed-off-by: Yoni Divinsky <yoni.divinsky@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05 20:24:31 +03:00
Yoni Divinsky
4a6c789b73 wl12xx: set the irq polarity before loading the fw
The polarity should be set before the firmware is loaded
since the firmware touches the same register. Access
of the firmware and driver to the same register will
cause a collision since there is no exclusion scheme.

Signed-off-by: Yoni Divinsky <yoni.divinsky@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05 20:24:31 +03:00
Yoni Divinsky
2e42c203a9 wlcore: use psd_type indexing according to spec
In ieee80211.h the uapsd bit mask is defined such that
VO=BIT(0), VI=BIT(1), BK=BIT(2), BE=BIT(3).
The firmware uses the indexing as defined in the ieee80211
spec, meaning that VO=3, VI=2, BK=1, BE=0.

In AP mode when adding peer wlcore needs to convert
the indexing accordingly.

Signed-off-by: Yoni Divinsky <yoni.divinsky@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05 20:24:31 +03:00
Eliad Peller
bfb92ca133 wlcore: set wl->ht_cap per-band
Save the ht_cap IE per-band, so we can configure different
params to BG and A bands (we currently don't support MIMO
on A band)

[Small fix for rx_highest - Arik]

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05 17:16:09 +03:00
Arik Nemtsov
a121a5b8ab wl18xx: add dependency on mac80211
Add a dependency on mac80211 in Kconfig, and also replace some spaces
with tabs.

Reported-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05 17:16:09 +03:00
Assaf Azulay
0a15d9b589 wlcore: increase number of BA sessions to 3
With the new FW (sigle role X.3.8.0.108, multi role X.5.4.0.21)
we are supporting 3 RX BA sessions, this change is to support this
new ability.

Signed-off-by: Assaf Azulay <assaf@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05 17:16:08 +03:00
Igal Chernobelsky
7b052214e5 wlcore: modify bss loss parameters
Modify default parameters to reduce firmware BSS lose
probability in congested environment.

[Applied to 18xx configuration as well - Arik]

Signed-off-by: Igal Chernobelsky <igalc@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05 17:16:08 +03:00
Eliad Peller
b515d83a29 wlcore: flush before stopping AP
Make sure the deauth bcast gets sent

[Make sure we are AP as well before the flush - Arik]

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05 17:16:08 +03:00
Eliad Peller
45b60f7ddd wlcore: use correct link for bcast/multicast frames
Multicast management frames (e.g. global deauth)
should be sent out on the bcast link, rather than
the global, which should be used only for pre-added
stations (e.g. for auth/assoc resp).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05 17:16:08 +03:00
Arik Nemtsov
6b8bf5bc5e wlcore: fixes for connection_loss_work
We can't use cancel_delayed_work_sync() from functions that take the
wl->mutex, since connection_loss_work also takes the mutex. This might
result in a deadlock. Restructure the code so the work is synchronously
canceled before taking the mutex.
Avoid a bug where we would indefinitely delay the connection loss
indication by re-queuing the connection loss work on consecutive beacon
loss events.

Cc: bartosz.markowski <bartosz.markowski@tieto.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05 17:16:08 +03:00
Arik Nemtsov
6e066921b3 wlcore: fix dynamic_ps_timeout time regression
In patch d7b63b9fc7 we have raised the dynamic
PS timeout to 200ms to improve user experience. Re-apply the change,
since it was reverted in the wlcore split.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05 17:16:08 +03:00
Eliad Peller
1ab0f21262 wlcore: use the original elp time in forced_ps mode
The dynamic PS timeout is meaningless in forced PS mode.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05 17:16:08 +03:00
Arik Nemtsov
d35dc739f6 wlcore: fix sparse warnings related to static functions
The "static" modifier was mistakenly forgotten for some functions.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05 17:16:08 +03:00
Luciano Coelho
b5d6d9b28c wlcore/wl12xx/wl18xx: don't use TX align quirk for wl127x
Commit 4afc37 (wlcore: reorder identify_chip and get_hw_info) broke
support for wl127x chips.

When we moved the identify_chip operation to an earlier stage (ie. to
the probe function), we broke wl127x support because during HW init we
would set the WLCORE_QUIRK_TX_BLOCKSIZE_ALIGN.

To avoid this, set this quirk in the identify_chip operations and only
force it to be unset if the bus module doesn't support it.  We were
doing the opposite and setting the flag if the bus module supports it.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05 16:07:16 +03:00
Assaf Azulay
3d62eb5a7e wl18xx: change default tcp_checksum to false
as tcp check sum is going to be removed from firmware, and as
there is a problem with getting dns in security when checksum is
enabled, it was decided to disable it by default.
for none security modes it can be enabled by module paramenter.

Signed-off-by: Assaf Azulay <assaf@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-06-05 15:59:41 +03:00
Luciano Coelho
c5d94169e8 wl18xx: use new fw stats structures
Some of the structures were updated, other structures had a few
missing values and a few new ones were added.  Change the driver
structs accordingly.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:59:10 +03:00
Luciano Coelho
3507efa084 wl18xx: increase tx_ba_win_size to 64
Now the firmware can support TX block ack sessions with 64 frames.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:59:06 +03:00
Luciano Coelho
5a7589be34 wlcore: increase aggregation buffer size by one page
With 4 pages (16Kb), we can't fit 10 frames in the aggregation buffer
during iperf.  This is the optimal for the firmware.  Thus, increase
the buffer size by one page.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:59:02 +03:00
Luciano Coelho
ad62d81a9e wlcore/wl12xx/wl18xx: move lower driver debugfs to a subdir
Instead of adding more files from the lower drivers into the same
directory in debugfs as wlcore, we now add a subdirectory for the
lower driver.  This makes things a bit easier, because we can quickly
see where the debugfs entry is implemented and what is specific to the
lower driver.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:58:59 +03:00
Luciano Coelho
7b03c306da wl18xx: export pwr_limit_reference_11_abg value as a module parameter
Yet another temporary module parameter requested by the firmware team.
This will be replaced by the conf binary.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:58:54 +03:00
Luciano Coelho
858403ab44 wl18xx: export low/high band component values as module params
We use hardcoded values for the different board types.  In some cases
we may need to override the defaults, so export the values as module
params.  If not defined, the defaults for the specified board type
will be used.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:58:51 +03:00
Luciano Coelho
5add82edd1 wl18xx: add power limit reference value to mac_and_phy settings
With more recent PHY firmware versions (>8.1.0.0.116), we need to use
the correct value for the pwr_limit_reference_11_abg parameter when
setting the mac_and_phy options.

For now we use a hardcoded 0xc8 as the value.  This will be moved to
the configuration binary when it gets implemented.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:58:46 +03:00
Luciano Coelho
8334271882 wl18xx: add module parameter to force SISO 20MHz
In some cases it may be useful to force narrow-band SISO channels.
Add a new value to the ht_mode module parameter to force the device to
operate in SISO 20MHz.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:58:42 +03:00
Luciano Coelho
60462b4885 wlcore: use proper values for supported local rates
We were setting all the rates bits when starting the AP role.  Instead
of doing this, we should set only the rates we really support
(eg. MIMO rates or wide-channel rates).  This commit changes that so
that we always use the default rates (basic rates + MCS0-7) and add
the values returned by the ap_get_mimo_wide_rate_mask operation.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:58:36 +03:00
Luciano Coelho
174a73034c wl18xx: don't use MIMO when ht_mode is set to wide
If the wl18xx module is loaded with ht_mode=wide (the default), we
shouldn't use MIMO rates when the channel type is not HT40.  Fix this
by checking the ht_mode before deciding which rates to used.
Additionally, set the ht_mode parameter explicitly to "wide" as the
default.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:58:32 +03:00
Luciano Coelho
06bba80e71 wlcore: print the interrupt status when recovery is triggered
In some cases it may be useful for debugging to check what is the
status of the interrupt register when a hardware recovery happens.
Print the contents of REG_INTERRUPT_NO_CLEAR (aka. HINT_STS_RAW) when
recovery starts.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:58:28 +03:00
Luciano Coelho
283e8c425f wl18xx: print the PHY firmware version from the private static data
The wl18xx firmware writes the PHY firmware version in the static
data.  Add an operation to parse the static data and print the PHY
firmware version when booting.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:58:24 +03:00
Luciano Coelho
7140df6e51 wlcore: create private static_data area and add operation to parse it
The wl18xx firmware has more information in the static_data than
wl12xx.  To be able to parse that in an abstracted way, this patch
adds a priv area to the static data struct and an operation that
allows the lower driver to parse it if necessary.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:58:20 +03:00
Luciano Coelho
8c0ea1021c wl18xx: implement fw status debugfs entries
Implement the operations that are necessary to fetch the
wl18xx-specific FW statistics and export them in debugfs.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:58:16 +03:00
Luciano Coelho
10b1e8a27a wl12xx: implement fw status debugfs entries
Implement the operations that are necessary to fetch the
wl12xx-specific FW statistics.  Re-add some of the code removed from
wlcore.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:58:12 +03:00
Luciano Coelho
bcca1bbdd4 wlcore: add debugfs macro to help print fw statistics arrays
Add a macro to make it easy to print arrays from the FW statistics
array in debugfs.  At the same time, increase the buffer size so
arrays fit more easily.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:58:08 +03:00
Luciano Coelho
4987257c30 wlcore: abstract debugfs fw_stats to be handled by the lower drivers
The FW statistics differ from hardware to hardware.  This commit
prepares for hardware-specific implementation of the FW statistics
debugfs entries.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:58:02 +03:00
Luciano Coelho
15e05bc059 wlcore: use all AP basic rates as default
Sometimes we get a BSS_CHANGED_BEACON_ENABLED event before the basic
rates have been properly set.  To avoid problems with the firmware not
expecting to receive frames at rates that are not set during
CMD_START_ROLE, we now start with all basic rates by default.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:57:58 +03:00
Luciano Coelho
62c2e579e0 wlcore: update beacon and probe_resp templates when rates change
When the data rates change, we get BSS_CHANGED_BASIC_RATES.  At this
point, we should update all the templates to match the new rates.  We
were changing some of the templates, but the beacon and the probe
response templates were missing.

[Remove redundant min_rate variable - Arik]

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:57:50 +03:00
Luciano Coelho
7ae25da396 wl18xx: disable MCS_13 for wl18xx PG 1.0
There are some problems with MCS_13 in PG 1.0 hardware.  So we disable
it when PG 1.0 is detected.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:57:45 +03:00
Luciano Coelho
4afc37a0c1 wlcore: reorder identify_chip and get_hw_info
We can do get the HW information and identify the chip already at
probe time.  This makes it easier to mangle with the parameters during
identify chip before registering the hardware with mac80211.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:57:41 +03:00
Luciano Coelho
73d8a42464 wl18xx: change low_band_component_type value for COM8
Like HDK, COM8 uses 0x06 for the low_band_component_type as well.
Hardcode the value for COM8 until this configuration can be done in
the external configuration binary (to be implemented).

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:57:36 +03:00
Luciano Coelho
4f64a1e93f wlcore: add space for private area when allocating fw_status
When allocating the fw_status structure, the space for the
lower-driver private area was missing.  This was causing an illegal
write outside the allocated area, which was causing random oopses
around the kernel.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:57:32 +03:00
Luciano Coelho
4b9d2365d5 wl18xx: changed default board_type to HDK
Since the most common board we're using now is an HDK board, change
the default board_type to hdk.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:57:27 +03:00
Luciano Coelho
776f030aa0 wl18xx: copy the default configuration before checking the board_type
We were changing the low_band_component_type in the private
configuration structure before copying the default values to it, so
the change was overwritten and only took effect after HW recovery.

Reported-by: Dror Erez <drorer@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:57:20 +03:00
Luciano Coelho
df472894ab wlcore: add module parameter to dump SDIO reads and writes
In some cases we may want to dump all the SDIO data in order to get
detailed information for debugging the communication with the
firmware.

Add printks to dump the data and a module parameter to enable/disable
it.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:57:15 +03:00
Luciano Coelho
1ddbc7d4c7 wl18xx: add a module parameter to control 11a support
In wl18xx we don't have an NVS yet, so we need to control whether 11a
is supported with a module parameter for now.  11a support is enabled
by default and can be changed by setting enable_11a to false when
loading the module.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:57:11 +03:00
Luciano Coelho
a5114d9c0d wl18xx: derive the MAC address from the BD_ADDR in fuse ROM
Add the get_mac operation in order to fetch the BD_ADDR from fuse ROM,
so that we can derive the WLAN MAC addresses from it.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:57:06 +03:00
Arik Nemtsov
0afd04e5e5 wlcore/wl12xx/18xx: split fw_status struct into two
The number of RX packet descriptors may vary from chip to chip and
in different firmware versions.  Unfortunately, the array that
contains the actual descriptors is in the middle of the fw_status
structure.  To manage this, we split the struct into two so we can
calculate the offset of what comes after the array and access the last
elements more easily.

[Changed the STATUS_LEN macro to be placement agnostic - Arik]

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:56:58 +03:00
Luciano Coelho
102165c6d2 wl18xx: add module parameter to disable TCP checksum
Add a new module parameter to disable TCP checksum offload.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:56:53 +03:00
Luciano Coelho
e9258815a8 wl18xx: add number of antennas and dc2dc type as module params
We need to specify the number of 2.4GHz and 5GHz antennas and whether
the board has an internal or external DC2DC.  Add some module
parameters that allow changing that.

In the future this will come from the "NVS" file.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2012-06-05 15:56:48 +03:00