kernel.git/drivers/net/wireless/rt2x00/rt2800lib.c, branch linux-3.9.y

rt2800: fix RT5390 & RT3290 TX power settings regression

2013-07-03T17:55:22Z

commit 8c8d2017ba25c510ddf093419048460db1109bc4 upstream. My change: commit cee2c7315f60beeff6137ee59e99acc77d636eeb Author: Stanislaw Gruszka Date: Fri Oct 5 13:44:09 2012 +0200 rt2800: use BBP_R1 for setting tx power unfortunately does not work well with RT5390 and RT3290 chips as they require different temperature compensation TX power settings (TSSI tuning). Since that commit make wireless connection very unstable on those chips, restore previous behavior to fix regression. Once we implement proper TSSI tuning on 5390/3290 we can restore back setting TX power by BBP_R1 register for those chips. Reported-and-tested-by: Mike Romberg Signed-off-by: Stanislaw Gruszka Acked-by: Gertjan van Wingerde Signed-off-by: John W. Linville Signed-off-by: Greg Kroah-Hartman

rt2x00: Fix transmit power troubles on some Ralink RT30xx cards

2013-05-08T03:33:08Z

commit 7e9dafd873034dd64ababcb858be424c4780ae13 upstream. Some cards on Ralink RT30xx chipset not have correctly TX_MIXER_GAIN value in them EEPROM/EFUSE. In this case, we must use default value, but always used EEPROM/EFUSE value. As result we have tranmitt power range from -10dBm to +6dBm instead 0dBm to +16dBm. Correctly value in EEPROM/EFUSE is one or more for RT3070 and two or more for other RT30xx chips. Tested on Canyon CNP-WF518N1 usb Wi-Fi dongle and Jorjin WN8020 usb embedded Wi-Fi module. Signed-off-by: Alex A. Mihaylov Acked-by: Gertjan van Wingerde Acked-by: Stanislaw Gruszka Signed-off-by: John W. Linville Signed-off-by: Greg Kroah-Hartman

rt2x00: remove NOTICE

2013-01-30T20:06:43Z

We use this macro only on 3 places - remove it and replace by other appropriate macros for printing messages. Signed-off-by: Stanislaw Gruszka Acked-by: Ivo van Doorn Signed-off-by: John W. Linville

rt2x00: Improve TX status handling for BlockAckReq frames

2013-01-22T21:01:29Z

Since rt2800 hardware isn't capable of reporting the TX status of BlockAckReq frames implement the TX status handling of BARs in rt2x00lib. We keep track of all BARs that are send out and try to match incoming BAs to the appropriate BARs. This allows us to report a more or less accurate TX status for BAR frames which in turn improves BA session stability. This is loosley based on Christian Lamparter's patch for carl9170 "carl9170: fix HT peer BA session corruption". We have to walk the list of pending BARs for every rx'red BA even though most BAs don't belong to any of these BARs as they are just acknowledging an AMPDU. To keep that overhead low use RCU which allows us to walk the list of pending BARs without the need to acquire a lock. This however requires us to _copy_ relevant information from the BAR (RA, TA, control field, start sequence number) into our BAR list entry. Signed-off-by: Helmut Schaa Tested-by: Andreas Hartmann Acked-by: Gertjan van Wingerde Signed-off-by: John W. Linville

rt2x00: rt2800: convert read_eeprom functions to return an int value

2013-01-07T20:16:54Z

Both the rtt2x00usb_eeprom_read and the ioremap functions are allowed to fail, however their return values are not checked in the read_eeprom functions in the rt2800{pci,usb} drivers. The patch adds the missing checks, and converts all read_eeprom functions to return an int value, so the error values can be propagated up to the 'rt2800_validate_eeprom' function. Signed-off-by: Gabor Juhos Signed-off-by: John W. Linville

rt2800: refactor RFCSR initialization

2013-01-07T20:16:50Z

rt2800_init_rfcsr() is too big, split RF initialization into per chip functions. Code will change, but we should setup the same values onto RF registers and in the same order as before. Signed-off-by: Stanislaw Gruszka Signed-off-by: John W. Linville

mac80211: split TX aggregation stop action

2013-01-03T12:01:42Z

When TX aggregation is stopped, there are a few different cases: - connection with the peer was dropped - session stop was requested locally - session stop was requested by the peer - connection was dropped while a session is stopping The behaviour in these cases should be different, if the connection is dropped then the driver should drop all frames, otherwise the frames may continue to be transmitted, aggregated in the case of a locally requested session stop or unaggregated in the case of the peer requesting session stop. Split these different cases so that the driver can act accordingly; however, treat local and remote stop the same way and ask the driver to not send frames as aggregated packets any more. In the case of connection drop, the stop callback the driver is otherwise supposed to call is no longer required. Signed-off-by: Johannes Berg

Merge branch 'for-john' of git://git.sipsolutions.net/mac80211-next

2012-12-11T21:04:03Z

Revert: "rt2x00: Don't let mac80211 send a BAR when an AMPDU subframe fails"

2012-12-05T08:57:19Z

This revert: commit be03d4a45c09ee5100d3aaaedd087f19bc20d01f Author: Andreas Hartmann Date: Tue Apr 17 00:25:28 2012 +0200 rt2x00: Don't let mac80211 send a BAR when an AMPDU subframe fails To fix problem workaround by above commit use IEEE80211_HW_TEARDOWN_AGGR_ON_BAR_FAIL flag (see change log for "mac80211: introduce IEEE80211_HW_TEARDOWN_AGGR_ON_BAR_FAIL" patch). Resolve: https://bugzilla.kernel.org/show_bug.cgi?id=42828 Bisected-by: Francisco Pina Martins Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Gruszka Signed-off-by: Johannes Berg

rt2x00: rt2800lib: introduce RFCSR3_VCOCAL_EN

2012-12-03T18:52:01Z

On the RF3290,RF5360,RF5370,RF5372,RF5390,RF5392 radio frontends, the VCO calibration can be controlled via the RFCSR3 register. The current code uses the RFCSR30_RF_CALIBRATION constant to enable the calibration, however that belongs to the RFCSR30 register. Although the values of the constant is correct, but using that for another register is confusing. Add a new definition for the VCO calibration enable bit of the RFCSR3 register and use that in the relevant places in order to avoid confusions. The patch contains no functional changes. Signed-off-by: Gabor Juhos Acked-by: Gertjan van Wingerde Signed-off-by: John W. Linville