Wey-Yi Guy [Mon, 23 Aug 2010 14:57:05 +0000 (07:57 -0700)]
iwlagn: wifi/bt coex configuration sequence
bt config command need to send before the init calibration command,
driver need to let uCode know that calibrations are being performed now
in order to assure antenna is not being taken to BT use during radio/dsp
reads/writes
Also, bt_coex_priorty_table command need to be send right after the
bt_config_command during init sequence. Followed by bt coex envelope
command to initialize and prepare uCode bt state machine
Wey-Yi Guy [Mon, 23 Aug 2010 14:57:04 +0000 (07:57 -0700)]
iwlwifi: add bt full concurrency support
Adding the bluetooth full concurrency support for WiFi/BT combo devices.
Driver should configure uCode to operate in "full concurrency" mode (via
LUT) if both conditions are met:
- Antenna Coupling is more than 35dB
- WiFi Channel Inhibition Request is hornored by BT Core
Currently, there is no antenna coupling information provided by uCode;
use module parameter to specified the antenna coupling in dB.
When in "full concurrency" mode, driver need to download different LUT
to uCode while sending bt configuration command; also, driver need to
configure the device operate in 1x1 while in full concurrency mode.
Johannes Berg [Mon, 23 Aug 2010 14:57:03 +0000 (07:57 -0700)]
iwlwifi: use antenna A only under high BT load
When bluetooth indicated high load, we should use
only antenna A in 2.4 GHz for management frames.
Add this condition to iwl_toggle_tx_ant() to make
sure it'll always be met. Note that scanning has
a separate way of forcing the antenna, because we
should scan on antenna A only regardless of BT
traffic load.
Johannes Berg [Mon, 23 Aug 2010 14:57:00 +0000 (07:57 -0700)]
iwlagn: disable gen2b BT coexistence in IBSS
IBSS doesn't allow for coexistence, so it
should be disabled.
Additionally, disable reacting to the BT
profile notification when in IBSS mode,
it likely won't be sent by the device to
start with though.
Also, in IBSS mode, BT coexistence isn't as fully-featured
and we must use a single antenna only. So instead of
peppering the code with new checks, simply pretend
we are in high BT traffic load, which has the needed
effect of disabling antenna B use.
Johannes Berg [Mon, 23 Aug 2010 14:56:58 +0000 (07:56 -0700)]
iwlagn: let bluetooth traffic load impact rate scale
Depending on the amount of bluetooth traffic,
using the shared antenna (antenna B) will have
adverse impact on both bluetooth and wireless
traffic. Add controls to improve the situation
by making rate scaling depend on the BT load.
When there's high bluetooth traffic load, there's
little point in trying to aggregate as BT traffic
would disrupt the aggregated frames all the time,
so simply don't start sessions then.
When BT traffic returns to lower levels, the rate
scaling will come here again automatically when
wifi traffic is high enough, and then it will be
able to successfully enable aggregation.
mac80211: cancel restart_work in ieee80211_unregister_hw
Unlike most other workqueue-tasks, the restart_work is
not scheduled onto mac80211's private per-interface
workqueue, but onto one of the system-wide workqueues.
Therefore the mac80211-stack has to cancel any pending
restarts, before destroying the shared device context
and handing back the memory. Otherwise - under very
unlucky circumstances - there could be a stale work-
item left, because some other kernel component might
have delayed the execution of ieee80211_restart_work
for too long.
The ISL3887 chip needs a USB reset, whenever the
usb-frontend module "p54usb" is reloaded.
This patch fixes an off-by-one bug, if the user
is running a kernel without the CONFIG_PM option
set and for some reason (e.g.: compat-wireless)
wants to switch between different p54usb modules.
Kalle Valo [Sun, 22 Aug 2010 19:46:43 +0000 (22:46 +0300)]
wl1251: remove copyright contact person
As my nokia address doesn't work anymore, it's better just to remove the
copyright contact altogether. We have MODULE_AUTHOR() scripts for these
anyway.
This patch adds an Kconfig option, which allows the user
to select, whenever he/she wants to include a 4k blob for
generic calibration and interface values into the driver,
or cut the module size by about 15 to 20%.
Bob Copeland [Sat, 21 Aug 2010 20:39:03 +0000 (16:39 -0400)]
ath5k: log descriptor chains at a new debug level
Descriptors are currently logged with ATH5K_DEBUG_RESET,
which isn't really apt, and also means we can't see just
the descriptor setup or just the resets. Add a new
debug level just for that.
To make del_timer_sync() works we have to assure that timer function
does not rearm the timer. To achieve that we cancel timer with
STATUS_EXIT_PENDING bit set in __iwl{3945,}_down function.
Patch also fix priv->txq memory usage after free for iwl3945, because
it move timer cancellation before iwl3945_hw_txq_ctx_free(priv) is called.
Johannes Berg [Wed, 18 Aug 2010 16:35:22 +0000 (09:35 -0700)]
iwlwifi: do not spuriously call ieee80211_scan_completed
When a scan is aborted because the corresponding
virtual interface is removed, we may still later
attempt to tell mac80211 that the scan completed.
This is obviously wrong, since we already told it
that it was aborted, so don't do that.
Johannes Berg [Wed, 18 Aug 2010 13:01:23 +0000 (15:01 +0200)]
mac80211: fix docbook
Fix a small problem in the documentation for
ieee80211_request_smps, and a now erroneous
inclusion of enum ieee80211_key_alg, which no
longer exists after the change to ciphers.
Poll for join command completion instead of waiting blindly for 10
msecs. There is a timeout of 100 msecs, if the command doesn't complete
by then, we return an error code.
Jay Sternberg [Thu, 12 Aug 2010 19:15:55 +0000 (12:15 -0700)]
iwlwifi: move debug options into submenu
more debug options being added so it is useful to move them
into a submenu for ease of readability when using config commands
like make menuconfig and make xconfig
Jay Sternberg [Thu, 12 Aug 2010 17:24:07 +0000 (10:24 -0700)]
iwlwifi: enable experimental ucode support
ucode firmware may need to be released as experimental for testing or
debugging. released ucode filenames have the API version as the last
component. experimental ucode files will have that component be "exp"
and the fw_version string reported by ethtool will also contain the
string EXP to clearly identify this ucode from released ucode.
EXP is short for EXPERIMENTAL since fw_version has a max lenght on 32.
this capability is controlled by Kconfig and defaulted to not be used.
Wey-Yi Guy [Tue, 3 Aug 2010 15:23:32 +0000 (08:23 -0700)]
iwlagn: continue perform rate scale when error detected
If for some reason, the actual link command not matching neither
active nor search table; instead of return and not performing rate
scale, by-pass the data collection and continue the rate scale process.
Johannes Berg [Thu, 29 Jul 2010 14:07:51 +0000 (07:07 -0700)]
iwlwifi: refactor iwl_setup_rxon_timing
All callers of iwl_setup_rxon_timing() also send
the command right away, so rename the function
to iwl_send_rxon_timing() and move the sending
into it. Also, some callers clear the data, this
can be done always and thus moved in as well.
Finally, there's no reason for the function to
acquire the spinlock, but it should be called
with the mutex held, so assert that.
Update outdated comments of iwl_set_rxon_channel() to reflect the
current signature. Also remove the unnecessary validation of the
channel. Those channel info are constructed in iwlwifi driver
and mac80211 will never modify the content of the struct. Also
everytime before this function is called the channel info has
been validated already (as a paranoid check).
When iwl_mac_config() is called by mac80211, the channel pointer
hw->conf->channel can potentially change, resulting in mismatch
band and channel number when configuring RXON command. To avoid
this situation, save the channel pointer in local variables
and validate the channel before using it. Note that priv->mutex
is locked during the whole function so the local variables are safe.
Same change is applied to iwl_mac_channel_switch() since basically
it copies code from iwl_mac_config().
iwlwifi: do not call ieee80211_frequency_to_channel
A few cases in iwlwifi driver function ieee80211_frequency_to_channel()
is called to get channel number from center frequency. This is not needed
since the channel number is already saved in hw_value field of struct
ieee80211_channel in function iwlcore_init_geos(). So replace those function
calls with hw_value field of struct ieee80211_channel.
Julian Calaby [Tue, 17 Aug 2010 18:52:41 +0000 (14:52 -0400)]
Hostap: Fix "'ret' set but not used" warning message from GCC in hostap
CC [M] drivers/net/wireless/hostap/hostap_ioctl.o
drivers/net/wireless/hostap/hostap_ioctl.c: In function 'prism2_request_scan':
drivers/net/wireless/hostap/hostap_ioctl.c:1666:6: warning: variable 'ret' set but not used
Johannes Berg [Tue, 17 Aug 2010 10:08:07 +0000 (12:08 +0200)]
mac80211-hwsim: allow configuring IBSS
It will not look standard-compliant in a sniffer
because because it doesn't
* sync TSF
* adjust the TSF in beacons
* send beacons at TBTT
* cancel beacons when another phy sends
However, it does allow testing the configuration
and parts of the mac80211 code for IBSS and as
such is still useful.
Johannes Berg [Tue, 17 Aug 2010 10:04:34 +0000 (12:04 +0200)]
wireless: move documentation books
This moves mac80211 documentation into a new
802.11 bookset and also adds a cfg80211 book
to the set. All of this is rather incomplete,
but it's easier to work with big code moving
as a separate patch.
Like other vendors, p54* devices have a checksum for
the EEPROM descriptor data. This patch enhances the
parser code to generate and verify the data fields,
before initializing the radio-chip on the card.
Note:
If you have to bootstrap an alternative EEPROM image
for your device and you don't know how to generate a
valid crc ccitt checksum, you should take a look at:
http://git.kernel.org/?p=linux/kernel/git/chr/p54tools.git
The "checksum" utility loads a binary p54 EEPROM blob
(use the -f switch, to skip the check) and applies
the correct crc automatically.
Bob Copeland [Sun, 15 Aug 2010 17:03:15 +0000 (13:03 -0400)]
ath5k: don't enable probe request rx for STAs
AR5K_RX_FILTER_PROBEREQ enables reception of probe requests,
but the filter flag FIF_BCN_PRBRESP_PROMISC is actually about
receiving beacons and probe _responses_, so we shouldn't
turn on the filter when scanning.
Bob Copeland [Sun, 15 Aug 2010 17:03:13 +0000 (13:03 -0400)]
ath5k: remove monitor check in receive_frame_ok filter
Monitor interfaces are never seen by the driver, so tests based on
that opmode don't make sense. Also, we already pass all mic
failure packets.
Consequently this code is actually accepting any frames with just
crypto errors and rejecting those with CRC, FIFO, and PHY errors for
all interface types. Adjust the code and comment accordingly.
Johannes Berg [Thu, 12 Aug 2010 13:38:38 +0000 (15:38 +0200)]
cfg80211/mac80211: extensible frame processing
Allow userspace to register for more than just
action frames by giving the frame subtype, and
make it possible to use this in various modes
as well.
With some tweaks and some added functionality
this will, in the future, also be usable in AP
mode and be able to replace the cooked monitor
interface currently used in that case.
Johannes Berg [Thu, 12 Aug 2010 13:37:29 +0000 (15:37 +0200)]
mac80211: remove unused don't-encrypt flag
When MFP is disabled, action frames will not
be encrypted since they are management frames
and the only management frames that can then
be encrypted are authentication frames.
Therefore, setting the don't-encrypt flag on
action frames is unnecessary.
Johannes Berg [Thu, 12 Aug 2010 12:49:58 +0000 (14:49 +0200)]
cfg80211: mark ieee80211_hdrlen const
This function analyses only its single, value-passed
argument, and has no side effects. Thus it can be
const, which makes mac80211 smaller, for example:
text data bss dec hex filename
362518 16720 884 380122 5ccda mac80211.ko (before)
362358 16720 884 379962 5cc3a mac80211.ko (after)
a 160 byte saving in text size, and an optimisation
because the function won't be called as often.
Joe Perches [Thu, 12 Aug 2010 02:11:19 +0000 (19:11 -0700)]
drivers/net/wireless: Restore upper case words in wiphy_<level> messages
Commit c96c31e499b70964cfc88744046c998bb710e4b8
"(drivers/net/wireless: Use wiphy_<level>)"
inadvertently changed some upper case words to
lower case. Restore the original case.
broke 3945 under some unknown circumstances, as
reported by Alex.
Since I want to keep the direct application of
filter flags on iwlagn, duplicate the code into
both 3945 and agn and remove committing the
RXON that broke things from the 3945 version.
John W. Linville [Fri, 13 Aug 2010 22:47:33 +0000 (18:47 -0400)]
ipw2100: don't sync status queue entries
These are allocated with pci_alloc_consistent, so calling
pci_dma_sync_single_for_cpu is incorrect usage of the API. Remove this
misuse and consequently avoid the following backtrace:
drivers/net/wireless/libertas/cfg.c: In function 'lbs_scan_worker':
drivers/net/wireless/libertas/cfg.c:722: error: 'TASK_NORMAL' undeclared (first use in this function)
drivers/net/wireless/libertas/cfg.c:722: error: (Each undeclared identifier is reported only once
drivers/net/wireless/libertas/cfg.c:722: error: for each function it appears in.)
drivers/net/wireless/libertas/cfg.c: In function 'lbs_cfg_connect':
drivers/net/wireless/libertas/cfg.c:1267: error: 'TASK_INTERRUPTIBLE' undeclared (first use in this function)
drivers/net/wireless/libertas/cfg.c:1267: error: implicit declaration of function 'signal_pending'
drivers/net/wireless/libertas/cfg.c:1267: error: implicit declaration of function 'schedule_timeout'
So wait.h has a dependency on sched.h, but doesn't include sched.h. This
patch doesn't fix that.
Johannes Berg [Tue, 10 Aug 2010 07:46:40 +0000 (09:46 +0200)]
mac80211: remove unused status flag checks
The decryption code verifies whether or not
a given frame was decrypted and verified by
hardware. This is unnecessary, as the crypto
RX handler already does it long before the
decryption code is even invoked, so remove
that code to avoid confusion.
Johannes Berg [Tue, 10 Aug 2010 07:46:38 +0000 (09:46 +0200)]
mac80211: use cipher suite selectors
Currently, mac80211 translates the cfg80211
cipher suite selectors into ALG_* values.
That isn't all too useful, and some drivers
benefit from the distinction between WEP40
and WEP104 as well. Therefore, convert it
all to use the cipher suite selectors.
Dan Williams [Sun, 8 Aug 2010 02:16:30 +0000 (21:16 -0500)]
libertas: [spi] use common firmware request helper and new firmware locations
linux-firmware puts libertas firmware in /libertas. Fix the driver to
look there first, but fall back to the old firmware names if the new
ones don't exist. Add preference for newer firmware versions too.
Dan Williams [Sun, 8 Aug 2010 02:15:52 +0000 (21:15 -0500)]
libertas: [sdio] use common firmware request helper and new firmware locations
linux-firmware puts libertas firmware in /libertas. Fix the driver to
look there first, but fall back to the old firmware names if the new
ones don't exist. Add preference for newer firmware versions too.
Dan Williams [Sun, 8 Aug 2010 02:15:19 +0000 (21:15 -0500)]
libertas: [cs] use common firmware request helper and new firmware locations
linux-firmware puts libertas firmware in /libertas. Fix the driver to
look there first, but fall back to the old firmware names if the new
ones don't exist.
Dan Williams [Sun, 8 Aug 2010 02:14:33 +0000 (21:14 -0500)]
libertas: add two-stage firmware request helper
SDIO, GSPI, and CS all use 2-stage firmware and the loading
process and logic should be the same. Allow module parameters
to override the automatic firmware choice, otherwise just walk
the bus driver's firmware table and pick out the first firmware
pair that exists for the given model.
Some special care is taken to allow overriding of just the helper
or the main firmware, but let the other of the pair be chosen
automatically.
Dan Williams [Sun, 8 Aug 2010 02:13:57 +0000 (21:13 -0500)]
libertas: [usb] use new firmware locations
Look for firmware where the linux-firmware tree actually puts it, but
fall back to original firmware name & location when the new location
doesn't exist.
Ivo van Doorn [Fri, 6 Aug 2010 18:49:27 +0000 (20:49 +0200)]
rt2x00: Remove ieee80211_rx_status from rt2x00_dev
rt2x00 was keeping a copy of ieee80211_rx_status embedded
into the rt2x00_dev structure. For each RX frame, this structure
was copied into the skb->cb where mac80211 would handle it further.
However at the moment only the fields current band, and frequency
were updated. Whereas the band was already provided directly within
the rt2x00_dev structure. Save a memcpy action, and reduce memory
a bit, by adding a curr_freq field to rt2x00_dev, and completely
remove the ieee80211_rx_status structure from rt2x00_dev.
Helmut Schaa [Fri, 6 Aug 2010 18:48:27 +0000 (20:48 +0200)]
rt2x00: Update comments regarding TXWI and TX_STA_FIFO
Add some comments about the TXWI fields and the TX_STA_FIFO register.
Especially describe the relationship between the TXWI field PACKETID
and the PID field in the TX_STA_FIFO register.
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