- 27 Aug, 2010 2 commits
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Bob Copeland authored
If the symbol offset is 46, it will be counted in both the third and fourth bytes of the mask, and in this case the shift will be negative which can pollute high order bits in the mask. This may negatively impact OFDM symbol detection. Signed-off-by:
Bob Copeland <me@bobcopeland.com> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Dan Carpenter authored
There was a small misordering here. In the original code, if we were to go to err_free_ah then it wouldn't free the irq. Signed-off-by:
Dan Carpenter <error27@gmail.com> Signed-off-by:
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- 25 Aug, 2010 38 commits
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Wey-Yi Guy authored
Encounter compiler error when iwlwifi debugging support is disabled, fix it. This compiler error was introduced by the previous WiFi/BT coexist patchset. Signed-off-by:
Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by:
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Johannes Berg authored
When a mac80211-based driver advertises mesh mode support, this will be advertised to userspace. However, if mac80211 was compiled without mesh support, then that won't actually be true. Fix this by removing the bit for mesh if mesh isn't compiled in. Since this synchronizes what we advertise to cfg80211 and actually support, it means we can now rely on cfg80211's interface type checks and need not check again in mac80211. Signed-off-by:
Johannes Berg <johannes.berg@intel.com> Signed-off-by:
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Christian Lamparter authored
This patch should fix the dodgy signal and noise value reports for most longbow (p54spi) users: e.g.: (an older tcpdump extract) > 2.0 Mb/s 2437 MHz (0x00a0) -49dB signal -41dB noise > 1.0 Mb/s 2437 MHz (0x00a0) 4dB signal -41dB noise The formula is taken from stlc45xx: http://gitorious.org/stlc45xx/mainline/blobs/master/stlc45xx.c#line1199Signed-off-by:
Christian Lamparter <chunkeey@googlemail.com> Signed-off-by:
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Christian Lamparter authored
This patch fixes a potential crash (null-pointer de- reference) which was introduced in my previous patch: "mac80211: AMPDU rx reorder timeout timer" During a BA teardown, the pointer to the soon-to-be-gone tid_ampdu_rx element will be nullified. Therefore the release timer mechanism has to be careful not to accidentally access the item without any RCU protection. Signed-off-by:
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Johannes Berg authored
commit 95a6ccbb46c70cff376684c752831c014c87029d Author: Johannes Berg <johannes.berg@intel.com> Date: Thu Aug 12 15:38:38 2010 +0200 cfg80211/mac80211: extensible frame processing introduced a netlink bug that caused parsing errors in userspace because it forgot to close a nesting, which would advertise a nesting length of zero to userspace, which then completely threw off parsing and led to Illegal nla->nla_type == 0 being printed by libnl. Signed-off-by: -
Arnaud Patard (Rtp) authored
rt2x00 debugfs interface doesn't check the size of the data coming from userspace, leading to a build warning. Fix That. v2: return EINVAL if input is too long Signed-off-by:
Arnaud Patard <arnaud.patard@rtp-net.org> Acked-by:
Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by:
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Ivo van Doorn authored
During initialization each driver reads the default TX power for each individual channel. However mac80211 only accepts the maximum value (which is also handled as default value). As a result, the TX power of the device was being limited to the default value, which is often quite low compared to the real maximum acceptable value. This patch allows each driver to set the maximum value on a per-channel basis which is forwarded to mac80211. The default value will be preserved for now, in case we want to update mac80211 to differentiate between the maximum and default txpower. This fixes bug complaining about limited TX power values like: https://bugzilla.kernel.org/show_bug.cgi?id=16358Signed-off-by:
Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by:
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Ivo van Doorn authored
We missed a check for RF3052 in the config_channel configuration function. As a result the channel is not properly configured for RF3052 devices. This also requires rt2800_config_channel_rf3xxx to support 5GHz channels, so we must apply the TXPOWER_A_TO_DEV and TXPOWER_G_TO_DEV conversions during rt2800_config_channel() Signed-off-by:
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Ivo van Doorn authored
The functions rt2800pci_enable_radio and rt2800usb_disable_radio are almost equal and can be merged into rt2800lib. This reduces the number of functions which must be exported from rt2800lib to the drivers at the same time. Also rt2800pci_disable_radio and rt2800usb_disable_radio are almost equal and can be merged into rt2800lib in a similar fashion. Signed-off-by:
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Ivo van Doorn authored
The retry count for a frame is calculated by the realized MCS rate subtracting of the requested MCS rate. However during TX done reporting we accidently override the requested MCS rate with the realized MCS rate. This causes the retry count to be reset to 0 always, and feeding invalid rate information into minstrel_ht. Signed-off-by:
Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by:
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Ivo van Doorn authored
Q_INDEX_CRYPTO and ENTRY_OWNER_DEVICE_CRYPTO where initially added with the plan to implement hardware encryption for rt2500pci. However there are no plans to do so anymore as the crypto mechanism in rt2500pci is very different then any other Ralink device. So we can now safely remove the definitions, and don't think about this feature anymore. :) Signed-off-by:
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Ivo van Doorn authored
All access to queue->entries through the Q_INDEX/Q_INDEX_DONE variables must be done using spinlock protection. It is best to manage this completely from rt2x00queue.c. For safely looping through all entries in the queue, the function rt2x00queue_for_each_entry is added which will walk from from a index range in a safe manner. This also fixes rt2x00usb which walked the entries list from 0 to length to kill each entry (killing entries must be done from Q_INDEX_DONE to Q_INDEX to enforce TX status reporting to occur in the correct order. Signed-off-by:
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Ivo van Doorn authored
Cosmetic change, reduce indenting. Signed-off-by:
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Ivo van Doorn authored
write_tx_desc shouldn't pass a rt2x00dev and skb pointer, instead it should use the same format as other TX frame callback functions, which is passing the data_entry pointer which contains all the information which is needed to work on a TX frame. Most callers of the kick_tx_queue and kill_tx_queue already have the data_queue pointer, so rather then sending the QID with the given function, when the driver requests a new pointer to the data_queue, it is more efficient to just send the data_queue pointer directly. Signed-off-by:
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Johannes Berg authored
When aggregation is stopped again for some reason before the queue we selected has drained, we will currently leak the TX queue and keep it enabled for aggregation. Normally this doesn't happen, so the problem is rarely seen. Signed-off-by:
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Wey-Yi Guy authored
Add the debugfs file to show current bluetooth traffic load Signed-off-by:
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Wey-Yi Guy authored
Update bt status upon receive scan complete notification Signed-off-by:
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Wey-Yi Guy authored
Move bt coex functions to iwl-agn-lib.c, so those functions can be shared by multiple wifi/bt combo devices Signed-off-by:
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Wey-Yi Guy authored
Current BT traffic load should based on the following conditions: 1. BT On/Off status 2. Channel announcement enable/disable 3. Curren traffic load report from uCode Need to modify rate scale to down-grade from MIMO to SISO if detected high BT traffic load. Also need to make sure not using chain "B" with high BT traffic or if it is in "full concurrency" mode. Signed-off-by:
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Wey-Yi Guy authored
Add bt_ch_announce module parameter to enable/disable BT channel announcement mode; default is "enable" Based on the bt channel announcement module parameter to configure the bt_config host command. Signed-off-by:
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Wey-Yi Guy authored
Add additional bt coex related parameters and initialize at init time. Thoese parameters will be used in later implementations. Signed-off-by:
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Wey-Yi Guy authored
1. Based on uart message from uCode, re-configure BT kill ack mask messages from uCode 2. send REPLY_BT_COEX_SCO command to uCode based on the uart frame received from uCode Signed-off-by:
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Wey-Yi Guy authored
Use .cfg to configure the default bt priority boost value; the default bt priority boost is 0xf0 Signed-off-by:
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Wey-Yi Guy authored
Adding configurable parameter in .cfg for the initial Bluetooth traffic load; set it to IWL_BT_COEX_TRAFFIC_LOAD_NONE for now, but can be change for debugging or other reason. Signed-off-by:
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Wey-Yi Guy authored
In current implementation, stuck queue timer is fixed to 1 second. Add debugfs file to modify the timer to enhance the flexibility: Set the monitor_period as following: 0: disable stuck queue force reset function 1 - 60000: monitor period (1 - 60 second) Signed-off-by:
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Wey-Yi Guy authored
Generate log when receive tx reply with bt_kill count > 0 and in advance bt coex mode Signed-off-by:
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Wey-Yi Guy authored
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 Signed-off-by:
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Wey-Yi Guy authored
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. Signed-off-by:
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Johannes Berg authored
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. Signed-off-by:
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Wey-Yi Guy authored
Disable plcp error checking for 6000g2b devices, with wifi/bt coex; this got trigger too often, disable for now until finding better trigger point. Also extend the firmware reload timer much longer for BT coex to make sure there are will be no mistake to reload firmware too fast and too often. Signed-off-by:
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Johannes Berg authored
The BT SCO needs to be re-applied to the device, while the traffic load just needs to be correct in software. Signed-off-by:
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Johannes Berg authored
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. Signed-off-by:
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Johannes Berg authored
When we turn off the device, reset BT data so that we don't have outdated information when we come up again. Signed-off-by:
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Johannes Berg authored
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. Signed-off-by:
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Johannes Berg authored
When advanced bt coex enabled, uCode will send bt status notification to driver, here add support for it. Signed-off-by:
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Johannes Berg authored
The BT ignore bit should be set when transmitting auth, assoc response and eap frames. Also, scanning should set the BT ignore bit for the probe request transmission; Note that we only use the non-shared antenna. Signed-off-by:
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Johannes Berg authored
6000g2b hardware implements advance bluetooth coexist command, implement base on the new API command strucutre. Also increment the API 5 to support the advance BT/WIfi coex. Signed-off-by:
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Johannes Berg authored
The new 6000g2b hardware requires a different bluetooth coexist implementation on the host, this adds the command/notification definitions for it. Signed-off-by:
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