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path: root/drivers/net/wireless/ath/carl9170
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2010-11-15carl9170: fix usb anchor wait timeoutChristian Lamparter
usb_wait_anchor_empty_timeout's @timeout wants milliseconds and not jiffies. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-08carl9170: usbid table updatesChristian Lamparter
This patch includes the following updates: * add D-Link DWA-130 Rev D * Netgear has three WNDA3100 versions. the original WNDA3100 is now called WNDA3100v1. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-10-25carl9170: fix scheduling while atomicChristian Lamparter
This patch fixes the following mishap: BUG: scheduling while atomic: wpa_supplicant/4164/0x00000002 Modules linked in: carl9170 mac80211 [...] Pid: 4164, comm: wpa_supplicant Not tainted 2.6.36-wl+ #119 Call Trace: [<c13779a9>] ? schedule+0x349/0x4c0 [<c13780d6>] ? schedule_timeout+0x106/0x1e0 [<c1037f50>] ? process_timeout+0x0/0x10 [<c1377e8d>] ? wait_for_common+0x9d/0x140 [<c1029110>] ? default_wake_function+0x0/0x10 [<f80c6080>] ? carl9170_exec_cmd+0xf0/0x250 [carl9170] [<f80c695e>] ? carl9170_set_mac_reg+0x5e/0x70 [carl9170] [<f80c3f76>] ? carl9170_op_add_interface+0x176/0x310 [carl9170] [...] rcu_read_unlock() call was erroneously placed after the sync. function carl9170_mod_virtual_mac. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-10-25carl9170: fix memory leak issue in async cmd macro wrappersChristian Lamparter
This patch continues where the previous commit: "carl9170: fix async command buffer leak" left off. Similar to carl9170_reboot/carl9170_powersave, the carl9170_async_regwrite* macros would leak the temporary command buffer, if __carl9170_exec_cmd fails to upload the command to the device. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-10-25carl9170: fix async command buffer leakChristian Lamparter
If __carl9170_exec_cmd fails to upload an asynchronous command to the device, the functions: carl9170_reboot and carl9170_powersave will leak the temporary command assembly buffer. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-10-11carl9170: A-MPDU frame type filterChristian Lamparter
In the past, carl9170 has been plagued by mysterious ghosts. e.g.: wlan4: deauthenticated from 02:04:d8:3c:ac:c1 (Reason: 0) Apparently, the AP sent us a bogus deauthentication notification. But upon closer inspection the "management frame" turned out to be a corrupted scrap of an unsuccessful A-MPDU. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-10-11carl9170: remove stale rx error pathChristian Lamparter
The total/fatal error bit was erroneously prefixed with AR9170_RX_ERROR instead of AR9170_RX_STATUS. Luckily, the hardware specification confirmed that the 0x80 flag will never be set for mac->error. So, it was always just a dead branch. This patch also imports the latest version of shared wlan.h header from the firmware git. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-10-11carl9170: common error path for bad framesChristian Lamparter
This patch replaces several identical frame drop paths with a single shared rx frame error handler. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-10-05carl9170: support firmware-based rx filterChristian Lamparter
The hardware rx-filter was essentially disabled, because of a serve, yet unidentifiable problem with iwlagn. Due to these circumstances the driver and mac80211 were left with the job of filtering. This is very unfortunate and has proven to be expensive in terms of latency, memory and load. Therefore the new 1.8.8.3 firmware introduces a flexible filtering infrastructure which allows the driver to offload some of the checks (FCS & PLCP crc check, RA match, control frame filter, etc...) whenever possible. Note: This patch also includes all changes to the shared headers files since the inclusion. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-28carl9170: interrupt urbs must not set URB_ZERO_PACKETChristian Lamparter
This patch fixes a bug in the driver which was exposed by CONFIG_USB_DEBUG: "usb 1-1.6.3: BOGUS urb flags, 40 --> 0" The transfer flag "URB_ZERO_PACKET" is only valid for bulk urbs. Reported-by: André Erdmann Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-28carl9170: revamp carl9170_tx_prepareChristian Lamparter
David Miller complained about the driver's excessive use of variables in __packed structs. While I did not fully agree with his sole "performance" argument on all accounts. I do see some room for improvement in hot-paths on architectures without an efficient access to unaligned elements. This first patch (dare I say?) optimizes an important tx hot-path in the driver: carl9170_tx_prepare. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-28carl9170: fix WARN_ON triggered by Broadcom HT STAsChristian Lamparter
Broadcom's Windows driver for the 4313 advertises an ampdu density of 7 => 16 us. The AR9170 MAC on the other hand only supports densities up to 8 us. This patch removes the noisy WARN_ON, because there is nothing we can do about it. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-28carl9170: fix tx_ampdu_upload counterChristian Lamparter
tx_ampdu_upload was not decreased when an a-MPDU frame had to be kicked out from the tx_pending queues. This broke ampdu aggregation, because the scheduler waits until tx_ampdu_upload drops to zero, before making the next aggregate. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-28carl9170: remove lost-frame workaroundChristian Lamparter
This patch removes some cruft, which survived the RFC review phase. Originally, carl9170_tx_ampdu_queue erroneously dropped a lot of frames. As a result the ampdu scheduler bogged down quite frequently and the affected BA session timed out. However this bug has been fixed and the WA and its debugfs counter is no longer useful. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-28carl9170: angle brackets for wiki linkChristian Lamparter
"The convention seems to be angle brackets around URLS in Kconfig." -- Finn Thain (to update web addresses in the kernel) Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-28carl9170: remove non-standard ba session teardownChristian Lamparter
802.11n-2009 demands in 11.2.1: " When a STA enters normal (non-APSD) PS mode, any downlink Block ACK agreement without an associated schedule is suspended for the duration of this PS mode." The operative word is "suspended" and not terminated. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21carl9170: fix hang in AP mode when HT STA does PSMChristian Lamparter
This is a obvious bug, skb_queue_walk does not work if the iterator gets removed from the queue. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21carl9170: reinit phy after HT settings have changedChristian Lamparter
The driver has a set of different initvals for 20 MHz vs dynamic HT2040 operation. Because we can't change some of the registers "in-flight", the driver needs to perform a warm reset. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21carl9170: fix state downgrade during resetChristian Lamparter
Don't mark the device as completely dead just yet. If all goes to plan and carl9170_reboot succeeds then we can skip the expensive userspace-driven reinitialization anyway. And if it doesn't and carl9170_reboot fails, then carl9170_usb_cancel_urbs will do the necessary steps. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21carl9170: abort tasklet during usb resetChristian Lamparter
This patch prevents the tasklet code from interfering while the firmware is down for an unscheduled maintenance. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21carl9170: don't load bogus nf of chain 1Christian Lamparter
According to Atheros, chain 1 is not connected. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21carl9170: fix noise dBm conversionChristian Lamparter
Ever since carl9170 gained support to read the noisefloor, the reported noisefloor level was pretty poor. Initially I assumed that something was wrong in the PHY setup and it would be impossible to fix without any guidances. But this was not the case. In fact the nf readings were correct and the thing that was broken was the "simple" sign extension code! Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21carl9170: use rx chainmask from eepromChristian Lamparter
The eeprom provides a mask for all present rx chains. Why not use it instead of the generic initval default? Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21carl9170: update AR9170 phy initvalsChristian Lamparter
This patch is loosely based on an ath9k patch called: "ath9k_hw: sync initvals for ar9001 and ar9002 with Atheros" It includes the following changes/fixes: - AGC setting improvements - timing changes for improved performance Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-14carl9170: Makefile, Kconfig files and MAINTAINERSChristian Lamparter
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-14carl9170: firmware parser and debugfs codeChristian Lamparter
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-14carl9170: 802.11 rx/tx processing and usb backendChristian Lamparter
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-14carl9170: PHY/RF and MAC routinesChristian Lamparter
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-14carl9170: Register maps, tx/rx descriptor formats and eeprom layoutChristian Lamparter
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-14carl9170: mac80211 glue and command interfaceChristian Lamparter
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>