Commit Graph

822 Commits

Author SHA1 Message Date
Eliad Peller a7cba38471 wl12xx: add ROC/CROC commands
Add structs and functions to support the ROC/CROC commands.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-22 12:35:26 +03:00
Eliad Peller f4df1bd525 wl12xx: add system_hlid
system_hlid is a const hlid (always 0), used by the fw and driver
for packets which are not bound to specific role (e.g. dynamic
memory packets).
indicate it as always allocated.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-22 12:35:26 +03:00
Eliad Peller fa6ad9f0f3 wl12xx: add set_rate_mgmt_params acx
Configure rate management parameters on hw init

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-22 12:35:25 +03:00
Eliad Peller f42bd2cbf1 wl12xx: use wl1271_acx_beacon_filter_opt for both sta and ap
Use ACX_BEACON_FILTER_OPT for both station and ap roles
(use the generic wl1271_acx_beacon_filter_opt()
instead of wl1271_acx_set_ap_beacon_filter() ).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-22 12:35:25 +03:00
Eliad Peller 154037d168 wl12xx: change max/default template size
The max template size was increased in the new fw.
However, we should use the max size only when needed, as it
consumes some of the chip's memory.

Thus, by default initialize the templates to the default size.
Initialize to the maximum size only when required.

Use WL1271_CMD_TEMPL_DFLT_SIZE instead of some of the
predefined structs, as some of them didn't account
for additional IEs that might be added to the template.

Delete structs defintions not used after these changes.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-22 12:35:25 +03:00
Eliad Peller 79b122dc51 wl12xx: update rx/tx
Update the rx/tx descriptors according to the new fw api
(fw >= 6/7.3.0.0.75)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-22 12:35:25 +03:00
Eliad Peller a4e02f330a wl12xx: update scan cmd api
Update the scan command to use the new fw api
(fw 6/7.3.0.0.75).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-22 12:35:25 +03:00
Eliad Peller 04e8079c69 wl12xx: add device role commands
The device role is a special role used for rx and tx frames
prior to association (as the STA role can get packets only
from its associated bssid)

Since this role is required for the sta association process,
we enable it when a new sta interface is created.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-22 12:35:24 +03:00
Eliad Peller b78b47eb73 wl12xx: enable/disable role on interface add/remove
According to the new multi-role flow, we have to enable the
role before using (starting) it, and disable it on cleanup
(after it's no longer needed).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-22 12:35:24 +03:00
Eliad Peller c690ec816f wl12xx: update commands & events
Change the commands and events according to the new fw api
(fw >= 6/7.3.0.0.75).

The main change is the replacement of JOIN/DISCONNECT commands,
with ROLE_START/ROLE_STOP commands.

The use of these commands should be preceded by the ROLE_ENABLE
command (allocating role resources), and followed by the
ROLE_DISABLE command (freeing role resources).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-22 12:35:24 +03:00
Eliad Peller 7f097988f1 wl12xx: update acx commands
Update the acx commands according to the new fw api
(fw >= 6/7.3.0.0.75).

The main change in most of the ACXs is the addition
of a new role_id/link_id field, which is required
for multi-role operation.

Currently, we don't really support multi-role, as
most of our data (inside wl) is global.
As the current fw doesn't support concurrent roles
yet, keep it this way and add wl->role_id and
wl->sta_hlid to save the active role/link.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-22 12:35:24 +03:00
Eliad Peller 4d56ad9cae wl12xx: update fw status struct
Update the fw status struct according to the new fw api
(fw >= 6/7.0.0.35).
All the roles use the same struct now.

The memory accounting was changed a bit according to
the struct changes.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-22 12:35:23 +03:00
Eliad Peller 08c1d1c704 wl12xx: remove rx filtering stuff
The new fw doesn't support rx_filtering configuration (as a
stand-alone command. the rx filtering is done automatically
according to the active role).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-22 12:35:23 +03:00
Eliad Peller dbe25cb5eb wl12xx: temporarily disable advanced ap functions
In order to keep to driver compiling during the patchset,
while avoiding one-huge-patch, temporarily disable some
advanced ap functions.

These changes will be reverted later in the patchset, as
part of the patches for advanced ap functions support.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-22 12:35:23 +03:00
Arik Nemtsov 2920743a14 wl12xx: use 1 spare block in all cases
Remove support for firmwares that require 2 spare blocks for packet TX
(and delete the WL12XX_QUIRK_USE_2_SPARE_BLOCKS quirk definition)

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-22 12:35:23 +03:00
Arik Nemtsov c302b2c959 wl12xx: Use a single fw for both STA and AP roles
Firmware >= 6/7.3.0.0.75 (wl127x/wl128x) supports both
STA and AP roles.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-22 12:35:22 +03:00
Arik Nemtsov 7bb5d6ce9e wl12xx: Revert "wl12xx: schedule TX packets according to FW occupancy"
This does not make sense in fw >= 6/7.3.0.0.75 (wl127x/wl128x) -
we don't use Tx blocks to measure FW occupancy anymore.

This reverts commit 9e374a37b6.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-22 12:35:22 +03:00
Gery Kahn 6f07b72ada wl12xx: fixes for hw_pg_ver and chip id reporting
Fix the value of PG version for 128x at sysfs, remove write permissions
from PG version (hw_pg_ver) in sysfs and add remove files
(hw_pg_ver,bt_coex_state) from sysfs while freeing hardware.
New macro names for register Fuse_data_2_1 depend on architecture.
Propagate chip id through wiphy in PLT mode which still not work of
a bug in ethtool.

Signed-off-by: Gery Kahn <geryk@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-12 09:22:49 +03:00
Shahar Levi 0a1d3abcc4 wl12xx: Add support to RX packets payload alignment
In case of QoS packets the packet payload isn't aligned to
4 bytes. In that case the mac80211 layer take care of that
via memmove() in ieee80211_deliver_skb().
Add support of copy packets from aggregation buffer to the
skbs with packet payload aligned care. In case of QoS packets
copy the packets in offset of 2 bytes guarantee payload aligned
to 4 bytes.

Signed-off-by: Shahar Levi <shahar_levi@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-08-12 09:22:49 +03:00
Johannes Berg 3b40c04071 wl12xx: remove wext dependencies
This driver uses IW_ESSID_MAX_SIZE when it should
be using IEEE80211_MAX_SSID_LEN instead.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-08 14:26:19 -04:00
John W. Linville 95a943c162 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
Conflicts:
	net/bluetooth/l2cap_core.c
2011-07-15 10:05:24 -04:00
John W. Linville e441a5eab9 Merge branch 'for-linville' of git://git.kernel.org/pub/scm/linux/kernel/git/luca/wl12xx 2011-07-08 11:05:20 -04:00
John W. Linville 204d1641d2 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem 2011-07-08 11:03:36 -04:00
Arik Nemtsov f1a46384ad wl12xx: start/stop queues according to global per-AC counters
Split tx_queue_count to count per-AC skb's queued, instead of relying on
the skb-queue len. The skb queues used were only valid in STA-mode, as
AP-mode uses per-link queues.

This fixes a major regression in AP-mode, caused by the patch
"wl12xx: implement Tx watermarks per AC". With that patch applied, we
effectively had no regulation of Tx queues in AP-mode. Therefore a
sustained high rate of Tx could cause exhaustion of the skb memory pool.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-07-08 09:39:47 +03:00
John W. Linville 333c0dbfcd Merge branch 'for-linville' of git://git.kernel.org/pub/scm/linux/kernel/git/luca/wl12xx 2011-07-06 15:03:16 -04:00
Arik Nemtsov 097f882153 wl12xx: always initialize AP-mode max power level
Sometimes we only get the Tx power level via op->config when the FW is
off. Record the received power level when this happens and use it to
initialize the firmware during boot.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-07-05 21:51:05 +03:00
Arik Nemtsov 6cfa5cffde wl12xx: initialize max_power levels for 11a channels
Set the maximum FW supported power levels for 11a channels.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-07-05 21:51:05 +03:00
Eliad Peller 73ecce31fe wl12xx: implement cancel_hw_scan() callback
After implementing cancel_hw_scan(), there is no more need to
flush scan_complete_work on suspend.

scan_complete_work enqueues a new scan_work, that might lead
to the following warning (if the device was already suspended):

WARNING: at drivers/mmc/core/core.c:169 mmc_wait_for_req+0x1ac/0x2c8()
Backtrace:
[<c004b50c>] (dump_backtrace+0x0/0x110)
[<c04fda50>] (dump_stack+0x0/0x1c)
[<c008f700>] (warn_slowpath_common+0x0/0x6c)
[<c008f76c>] (warn_slowpath_null+0x0/0x2c)
[<c034b058>] (mmc_wait_for_req+0x0/0x2c8)
[<c034f804>] (mmc_io_rw_extended+0x0/0x1e4)
[<c0350b5c>] (sdio_io_rw_ext_helper+0x0/0x1ac)
[<c0350e00>] (sdio_memcpy_fromio+0x0/0x2c)
[<bf194464>] (wl1271_sdio_raw_read+0x0/0x1bc [wl12xx_sdio])
[<bf15ac14>] (wl1271_cmd_wait_for_event_or_timeout+0x0/0x19c [wl12xx])
[<bf15adb0>] (wl1271_cmd_wait_for_event+0x0/0x30 [wl12xx])
[<bf15b7dc>] (wl1271_cmd_disconnect+0x0/0x14c [wl12xx])
[<bf158fd0>] (wl1271_unjoin+0x0/0x48 [wl12xx])
[<bf159070>] (wl1271_op_config+0x0/0x490 [wl12xx])
[<bf105084>] (ieee80211_hw_config+0x0/0x14c [mac80211])
[<bf113120>] (ieee80211_recalc_idle+0x0/0x4c [mac80211])
[<bf109a70>] (__ieee80211_scan_completed+0x0/0x1ac [mac80211])
[<bf109fd4>] (ieee80211_scan_work+0x0/0x484 [mac80211])
[<c00a197c>] (worker_thread+0x0/0x1e8)
[<c00a5874>] (kthread+0x0/0x90)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-07-05 21:50:39 +03:00
Eliad Peller 2aa01597eb wl12xx: add stop_scan command
define wl1271_scan_stop() to cancel an ongoing hw scan.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-07-05 21:50:39 +03:00
Eliad Peller e85d1629c6 wl12xx: configure suspend/resume only if associated/started
Configure the device (to wowlan) only if the sta/ap
is associated/started.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-07-05 21:50:39 +03:00
Ohad Ben-Cohen b5d6e5f663 wl12xx: one SDIO initialization is enough
Skip manual device power on in case runtime PM is enabled for
our device.

This eliminates a secondary & redundant SDIO init sequence.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-07-05 21:48:12 +03:00
Arik Nemtsov 708bb3cf58 wl12xx: implement Tx watermarks per AC
Each AC is stopped when its queue is filled up to the high watermark,
and restarted when its queue it lower than the low watermark. This
ensures congested ACs are not able to starve other ACs.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-07-05 21:33:44 +03:00
Ido Yariv 787b2dc44a wl12xx: Increase low & high TX watermarks
The current TX watermark settings cause the driver to stop queues too
frequently. Among other things, this can have a negative impact on WMM
prioritization, since mac80211 sorts pending packets by their ACs.

Fix this by increasing the high watermark to 256 packets. Increase the
low watermark to 32 to minimize periods with queues being stopped.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-07-05 21:33:44 +03:00
Arik Nemtsov 9e374a37b6 wl12xx: schedule TX packets according to FW occupancy
When selecting packets for transmission, prefer the ACs that are least
occupied in the FW. When packets for multiple ACs are present in the FW,
it decides which to transmit according to WMM QoS parameters.

With these changes, lower priority ACs should not be starved when higher
priority traffic is present.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-07-05 21:33:44 +03:00
Arik Nemtsov fae2fd767e wl12xx: use 802.11 header location after relocation to frame start
When operating with TKIP encryption, the function wl1271_tx_fill_hdr()
relocates the 802.11 header to the start of the frame, and leaves room
for the security header.

Some functions in the Tx path rely on the location of the header,
namely, for purposes of roaming in STA mode and connecting new stations
in AP mode. Call these functions only after the header is relocated.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-07-05 21:33:20 +03:00
Arik Nemtsov 3618f30f30 wl12xx: AP mode - support FW TX inactivity triggers
In AP mode we register for the MAX_TX_RETRY and INACTIVE_STA events.
Both are reported to the upper layers as a TX failure in the offending
stations.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-07-05 21:33:20 +03:00
Oz Krakowski b992c68228 wl12xx: fix Tx security sequence number handling
Do not reset the security sequence number when issuing a join command or
interface is removed. Instead, reset the counter only during the unjoin
command.

Added the notion of counter wrap-around to the LSB number in
wl1271_tx_complete_packet.

Added post recovery padding to adjust for potential security number
progress during the recovery process by the firmware and avoid
potential interop issues in encrypted networks.

Signed-off-by: Oz Krakowski <ozk@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-07-05 21:33:19 +03:00
John W. Linville df2cbe4075 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem 2011-06-30 13:34:06 -04:00
Arik Nemtsov b4d38db121 wl12xx: AP-mode - use mac80211 indication about STA WME support
When adding a station, use the information given in the mac80211
populated ieee80211_sta structure to determine if it supports WME.
Provide this information to the FW.

This patch depends on "mac80211: propagate information about
STA WME support down".

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-29 15:11:01 -04:00
Ido Yariv 95dac04f88 wl12xx: Support routing FW logs to the host
A recently added feature to the firmware enables the driver to retrieve
firmware logs via the host bus (SDIO or SPI).

There are two modes of operation:
1. On-demand: The FW collects its log in an internal ring buffer. This
   buffer can later be read, for example, upon recovery.
2. Continuous: The FW pushes the FW logs as special packets in the RX
   path.

Reading the internal ring buffer does not involve the FW. Thus, as long
as the HW is not in ELP, it should be possible to read the logs, even if
the FW crashes.

A sysfs binary file named "fwlog" was added to support this feature,
letting a monitor process read the FW messages. The log is transferred
from the FW only when available, so the reading process might block.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 15:10:56 +03:00
Ido Yariv baacb9aed0 wl12xx: Avoid recovery while one is already in progress
During recovery work commands sent to the FW could fail and schedule
additional recovery work. Since the chip is going to be powered off,
avoid recursive recoveries.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 15:05:15 +03:00
Ido Yariv 842f1a6c71 wl12xx: Check for FW quirks as soon as the FW boots
The FW initialization might depend on the FW revision, so check for any
FW quirks right after booting it.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 15:05:14 +03:00
Eliad Peller 92ef8960ae wl12xx: use freezable workqueue for netstack_work
When resuming (after wowlan), we want the rx packets (which is
usually the wake-up packet itself) to be passed to mac80211 only
after the resume notifier was completed, and mac80211 is up and
running (otherwise, the packets will be dropped).

By enqueueing the netstack_work to a freezable workqueue, we can
guarantee the rx processing to occur only after mac80211 was resumed.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 13:56:14 +03:00
Eliad Peller c27d3accb6 wl12xx: use _ni version of ieee80211_tx_status
wl1271_flush_deferred_work(), which calls ieee80211_rx() and
ieee80211_tx_status(), is called from a process context.
hence, use ieee80211_tx_status_ni() instead of ieee80211_tx_status().

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 13:56:14 +03:00
Eliad Peller ef4b29e976 wl12xx: check the vif's operstate after join
When resuming while connected (without wowlan), the interface
is already IF_OPER_UP, so we won't get the notifier callback,
and hence never complete the association (from wl12xx perspective)

This situation, among other potential problems, prevents the
station from entering psm.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 13:56:14 +03:00
Eliad Peller 6bb0433215 wl12xx_sdio: enable wowlan only if enable_irq_wake() succeeded
Some platforms don't support the wake_irq, so disable wowlan
in this case, and avoid the "Unbalanced IRQ wake disable"
warning on disable_irq_wake().

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 13:35:53 +03:00
Eliad Peller 8a7cf3febb wl12xx: enable/disable beacon filtering on ap suspend/resume
Beacon filtering needs to be enabled so AP won't wake up by
by every received beacon.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 13:35:40 +03:00
Eliad Peller ff91afc90a wl12xx: clear wl->wow_enabled on resume
We set wl->wow_enabled on every suspend(), so we need to clear it
on every resume().
(we can't rely on setting wl->wow_enabled=false in suspend(),
as it being called only when wowlan triggers are configured)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 13:29:21 +03:00
Eliad Peller 4a859df85a wl12xx: don't check wow param on suspend/resume
Since mac80211 calls suspend/resume only when wowlan triggers
exist, there is no need to check for triggers existance in the
callbacks as well.
Add a WARN_ON() to verify it.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 13:29:21 +03:00
Shahar Levi 0c005048aa wl12xx: Add Support for Low Power DRPw (LPD) Mode
The Low Power DRPw (LPD) mode contains several optimizations
that designed to reduce power consumption. The purpose
is to save current consumption in RX and Listen mode.

LPD setting apply only for wl127x AP mode (not wl128x)

Signed-off-by: Shahar Levi <shahar_levi@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 12:50:33 +03:00
Ohad Ben-Cohen 86046da4af wl12xx: don't bail if mmc isn't MMC_CAP_POWER_OFF_CARD
If our SDIO function has its runtime PM disabled, don't try to
manipulate its runtime PM status at all. This way we can still
power on cards plugged to mmc hosts that are not MMC_CAP_POWER_OFF_CARD.

Reported-and-tested-by: Tim Yamin <tim@kangatronix.co.uk>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 12:01:31 +03:00
Luciano Coelho d2c2bb9fcc wl12xx: split channel array per band in sched_scan
The firmware, in practice, treats the channels in three separate
blocks, one for each band (bg, a and j).  Instead of using a single
array and doing some magic with indices, split the array in 3 to make
it more readable.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 12:01:20 +03:00
Eliad Peller d192d268a1 wl12xx: fix erroneous commit (cb5ae0)
Due to rebase error, the patch for commit cb5ae0 ("wl12xx: configure
rates when working in ibss mode") was wrong - a blob was added
into the wrong function. fix it.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 12:01:14 +03:00
Eliad Peller a011130265 wl12xx: remove unused crc7 references
crc7 is used only in wl12xx_spi.

Remove redundant crc7.h includes, and update Kconfig to select CRC7
only if WL12XX_SPI is being selected.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 10:15:52 +03:00
Shahar Levi 0e44eb2093 wl12xx: Enable beacon early termination in 2.4GHz band only
Beacon early termination doesn't help much in the 5GHz band and masks
channel switch IE Beacons.  Thus, change the code to use BET only in
2.4GHz.

[Reworded the commit log slightly -- Luca.]

Signed-off-by: Shahar Levi <shahar_levi@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 10:15:51 +03:00
Eliad Peller c84368e01a wl12xx: add rx_streaming debugfs entry
Allow control over rx_streaming interval and operation mode
(always/only on coex) via debugfs.

e.g.
echo 100 > /debug/ieee80211/phy0/wl12xx/rx_streaming/interval
echo 1 > /debug/ieee80211/phy0/wl12xx/rx_streaming/always

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 10:15:50 +03:00
Eliad Peller 77ddaa108f wl12xx: add automatic rx streaming triggers
When rx_streaming.interval is non-zero, use automatic rx streaming.
Enable rx streaming on the each rx/tx packet, and disable it
rx_streaming.duration msecs later.

When rx_streaming.always=0 (default), rx streaming is enabled only
when there is a coex operation.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 10:15:49 +03:00
Eliad Peller f84673d597 wl12xx: add support for rx streaming
wl12xx supports the "rx streaming" feature:

When in ps mode, and @timeout msecs have been passed since
the last rx/tx, it issues trigger packets (QoS-null/PS-Poll packets,
according to the ac type) in const intervals (in order to reduce
the rx time).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 10:15:48 +03:00
Felipe Balbi ba2274c68e net: wl12xx: remove unnecessary prints
Those have little value. Remove those to
make the driver less noisy.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 10:15:47 +03:00
Felipe Balbi 4c4cdfa12f net: wl12xx: remove the nops
Nops aren't needed. When we actually need
those calls, then we add them with meat
and barbecue sauce.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 10:15:47 +03:00
Felipe Balbi 77d7d7a36d net: wl12xx: care for optional operations
->init and ->reset are optional - at least
sdio.c doesn't implement them - so allow those
pointers to be NULL.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 10:15:46 +03:00
Felipe Balbi 6bdaf79623 net: wl12xx: remove some unnecessary prints
Those have little value. Remove those to make
the driver less noisy.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 10:15:45 +03:00
Felipe Balbi 33dd74c784 net: wl12xx: sdio: id_tables should be __devinitconst
That's only needed during init anyway, let's free
some space after we're done probing.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-06-27 10:15:44 +03:00
John W. Linville c0c33addcb Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem 2011-06-08 13:44:21 -04:00
Shahar Levi 70559a0665 wl12xx: Stop BA session event from device
Adding new event that close RX BA session in case of periodic BT activity
limiting WLAN activity.

Signed-off-by: Shahar Levi <shahar_levi@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-07 14:44:02 -04:00
Alexey Dobriyan a6b7a40786 net: remove interrupt.h inclusion from netdevice.h
* remove interrupt.g inclusion from netdevice.h -- not needed
* fixup fallout, add interrupt.h and hardirq.h back where needed.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-06 22:55:11 -07:00
Luciano Coelho 66870b1ccd wl12xx: fix oops in sched_scan when forcing a passive scan
Fix kernel oops when trying to use passive scheduled scans.  The
reason was that in passive scans there are no SSIDs, so there was a
NULL pointer dereference.

To solve the problem, we now check the number of SSIDs provided in the
sched_scan request and only access the list if there's one or more
(ie. passive scan is not forced).  We also force all the channels to
be passive by adding the IEEE80211_CHAN_PASSIVE_SCAN flag locally
before the checks in the wl1271_scan_get_sched_scan_channels()
function.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-31 14:47:26 -04:00
Luciano Coelho 50a66d7f04 wl12xx: add separate config value for DFS dwell time on sched scan
Use a different value for DFS dwell time when performing a scheduled
scan.  Previously we were using the same value as for normal passive
scans.  This adds some flexibility between these two different types
of passive scan.

For now we use 150 TUs for DFS channel dwell time.  This may need to
be fine-tuned in the future.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-31 14:47:25 -04:00
Luciano Coelho 2497a246e8 wl12xx: fix DFS channels handling in scheduled scan
DFS channels were never getting included in the scheduled scans,
because they always contain the passive flag as well and the call was
asking for DFS and active channels.

Fix this by ignoring the passive flag when collecting DFS channels.
Also, move the DFS channels in the channel list before the 5GHz active
channels (this was implemented in the FW differently than specified).

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-31 14:47:25 -04:00
Luciano Coelho dd08682150 wl12xx: fix passive and radar channel generation for scheduled scan
We were comparing bitwise AND results with a boolean, so when the
boolean was set to true, it was not matching as it should.

Fix this by booleanizing the bitwise AND results with !!.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-31 14:47:24 -04:00
Luciano Coelho f634a4e707 wl12xx: fix compilation error when CONFIG_PM is not set
There was a compilation error when PM is not enabled:

  CC [M]  drivers/net/wireless/wl12xx/main.o
drivers/net/wireless/wl12xx/main.c:3653: error: unknown field 'suspend' specified in initializer
drivers/net/wireless/wl12xx/main.c:3653: warning: initialization from incompatible pointer type
drivers/net/wireless/wl12xx/main.c:3654: error: unknown field 'resume' specified in initializer
drivers/net/wireless/wl12xx/main.c:3654: warning: initialization from incompatible pointer type

Fix this by adding #ifdef's in the appropriate places.

Cc: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-18 16:51:26 -04:00
John W. Linville e00cf3b9eb Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
Conflicts:
	drivers/net/wireless/iwlwifi/iwl-agn-tx.c
	net/mac80211/sta_info.h
2011-05-16 19:32:19 -04:00
Eliad Peller 9439064cd9 wl12xx: enter/exit psm on wowlan suspend/resume
When operating as station, enter psm before suspending
the device into wowlan state.

Add a new completion event to signal when psm was entered
successfully.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-13 14:55:49 +03:00
Eliad Peller f795ea8b2f wl12xx_sdio: declare support for NL80211_WOW_TRIGGER_ANYTHING trigger
Since wowlan requires the ability to stay awake while the host
is suspended, declare support for NL80211_WOW_TRIGGER_ANYTHING
if the MMC_PM_KEEP_POWER capability is being supported.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-13 14:55:49 +03:00
Eliad Peller f44e58681a wl12xx: prevent scheduling while suspending (WoW enabled)
When WoW is enabled, the interface will stay up and the chip will
be powered on, so we have to flush/cancel any remaining work, and
prevent the irq handler from scheduling a new work until the system
is resumed.

Add 2 new flags:
* WL1271_FLAG_SUSPENDED - the system is (about to be) suspended.
* WL1271_FLAG_PENDING_WORK - there is a pending irq work which
   should be scheduled when the system is being resumed.

In order to wake-up the system while getting an irq, we initialize
the device as wakeup device, and calling pm_wakeup_event() upon
getting the interrupt (while the system is about to be suspended)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-13 14:55:49 +03:00
Eliad Peller 039bdb1494 wl12xx_sdio: set MMC_PM_KEEP_POWER flag on suspend
if a wow trigger was configured, set the MMC_PM_KEEP_POWER flag
on suspend, so our power will be kept while the system is suspended.

We needed to set this flag on each suspend attempt (when we want
to keep power)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-13 14:55:48 +03:00
Eliad Peller 402e486160 wl12xx: declare suspend/resume callbacks (for wowlan)
Additionally, add wow_enabled field to wl, to indicate
whether wowlan was configured.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-13 14:55:48 +03:00
Eliad Peller 2c0f24636c wl12xx_sdio: set interrupt as wake_up interrupt
set the sdio interrupt as wake_up interrupt, so we will be able
to wake up the suspended system (Wake-On-Wireless)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-13 14:55:48 +03:00
Luciano Coelho fe44870bcd wl12xx: remove unused flag WL1271_FLAG_IDLE_REQUESTED
This flag is not used anymore, remove it from the list.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-13 00:06:33 +03:00
Luciano Coelho 683c002447 wl12xx: prevent sched_scan when not idle or not in station mode
The current firmware only supports scheduled scan in station mode and
when idle.  To prevent the firmware from crashing, return -EOPNOTSUPP
when sched_scan start is called in an invalid state.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-13 00:06:33 +03:00
Luciano Coelho d3eff81de6 wl12xx: export scheduled scan state in debugfs
Add the sched_scanning value to the driver_status debugfs entry.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-13 00:06:33 +03:00
Luciano Coelho 33c2c06cd2 wl12xx: implement scheduled scan driver operations and reporting
This patch adds the mac80211 operations for scheduled scan and the
scheduled scan results reporting.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-13 00:06:33 +03:00
Luciano Coelho 95feadca6d wl12xx: add scheduled scan structures and commands
Add firmware command structures, definitions and code to to configure,
start and stop scheduled scans.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-13 00:06:33 +03:00
Luciano Coelho 6394c01b61 wl12xx: listen to scheduled scan events
Subscribe and listen to PERIODIC_SCAN_REPORT_EVENT_ID and
PERIODIC_SCAN_COMPLETE_EVENT_ID in preparation for the scheduled scan
implementation.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-13 00:06:32 +03:00
Luciano Coelho 3a9d60e5bd wl12xx: add configuration values for scheduled scan
Add the structures and values for driver-configured scheduled scan
parameters.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-13 00:06:32 +03:00
Shahar Levi fcd23b6305 wl12xx: add IEEE80211_HW_SPECTRUM_MGMT bit to the hw flags
Set the spectrum management bit in the hw flags so that mac80211 will
set the WLAN_CAPABILITY_SPECTRUM_MGMT bit in association requests
(which in practice means that we support 802.11h spectrum management).

[Reworded the commit log -- Luca.]

Signed-off-by: Shahar Levi <shahar_levi@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-13 00:06:32 +03:00
Shahar Levi bc76b94051 wl12xx: Don't filter beacons that include changed HT IEs
This patch adds a beacon filter rule to pass up the beacons that
contain changed HT information elements.  These beacons need to be
passed to mac80211 so that it can act on such changes.

[Reworded commit log -- Luca.]

Signed-off-by: Shahar Levi <shahar_levi@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-13 00:06:32 +03:00
Eliad Peller 889cb360b4 wl12xx: simplify wl1271_ssid_set()
Simplify wl1271_ssid_set by re-using cfg80211_find_ie instead of
reimplementing it.

Additionally, add a length check to prevent a potential buffer overflow.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-13 00:06:31 +03:00
John W. Linville a70171dce9 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
Conflicts:
	drivers/net/wireless/libertas/if_cs.c
	drivers/net/wireless/rtlwifi/pci.c
	net/bluetooth/l2cap_sock.c
2011-05-05 13:32:35 -04:00
Luciano Coelho 25eaea30cd Revert "wl12xx: support FW TX inactivity triggers"
This reverts commit 47684808fd.

Conflicts:

	drivers/net/wireless/wl12xx/conf.h
	drivers/net/wireless/wl12xx/main.c
2011-05-02 12:46:40 +03:00
Arik Nemtsov 2d66bee7fb wl12xx: export driver state to debugfs
By reading the "driver_state" debugfs value we get all the important
state information from the wl12xx driver. This helps testing and
debugging, particularly in situations where the driver seems "stuck".

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-02 10:31:34 +03:00
Arik Nemtsov 7dece1c8e1 wl12xx: fix race condition during recovery in AP mode
When operating as AP, the TX queues are not stopped when we start
recovery. mac80211 is notified only after the fact. When there is
pending TX, it will be queued even after the FW is down. This leads to
situations where the TX queues are stopped (because of the TX-watermark
mechanism), and are never woken up when we return from recovery.

Fix this by explicitly stopping the TX queues when before initiating
recovery.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-02 10:31:28 +03:00
Arik Nemtsov 2dc5a5c2c6 wl12xx: add debugfs entry for starting recovery
This entry is useful for debugging the driver state machine during
recovery.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-02 10:31:23 +03:00
Arik Nemtsov c45a85b5a3 wl12xx: AP-mode - reconfigure templates after basic rates change
When there's a change in the basic rates of the AP, reconfigure relevant
templates with the new rates.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-02 10:31:18 +03:00
Arik Nemtsov 70f474241b wl12xx: AP-mode - overhaul rate policy configuration
Use the minimal rate configured in the basic rates set as the AP
broadcast and multicast rate. The minimal rate is used to ensure weak
links can still communicate.

When the basic rates contains at least one OFDM rate, configure all
unicast TX rates to OFDM only.

Unify rate configuration on initialization and on change notification
into a single function.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-02 10:31:13 +03:00
Arik Nemtsov 52dcaf577f wl12xx: print firmware program counter during recovery
When performing recovery, print the firmware version and program
counter (by reading the SCR_PAD4 register). The value of the firmware
program counter during assert can be useful for debugging.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-02 10:31:09 +03:00
Arik Nemtsov f482b76202 wl12xx: schedule recovery on command timeout
We use a long timeout (2 seconds) when sending commands to the FW.
When a command times out, it means the FW is stuck, and we should
commence recovery.

This should make recovery times shorter as we'll recover on the first
timeout indication.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-02 10:31:03 +03:00
Arik Nemtsov 521a4a2326 wl12xx: AP-mode - disable beacon filtering on start up
New AP-mode FWs filter external beacons by default. Disable this
filtering on start up so we can properly configure ERP protection.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-02 10:30:48 +03:00
Arik Nemtsov 5f704d180e wl12xx: use wiphy values for setting rts, frag thresholds on init
Use the wiphy RTS and fragmentation thresholds for initializing the FW
when possible. This mitigates a bug where previously set values are
forgotten after interface down/up.

Add checks before settings these values to ensure they are valid. Use
default values when invalid thresholds are configured.

Update the default RTS threshold to the maximum value given by the
specification.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-02 10:29:20 +03:00
Arik Nemtsov 801f870bc0 wl12xx: add BT-coexistance for AP
Initialize AP specific BT coexitance parameters to default values and
enable them in AP mode.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-05-02 10:28:49 +03:00