1. 29 Jan, 2009 2 commits
  2. 25 Nov, 2008 1 commit
  3. 21 Nov, 2008 3 commits
    • Ivo van Doorn's avatar
      rt2x00: Fix race condition when using inderect registers · 8ff48a8b
      Ivo van Doorn authored
      Indirect registers require multiple calls to the CSR
      register in order to access the indirect registers.
      This must be protected under a lock to prevent race
      conditions which could cause invalid data to
      be returned when reading from the indirect register or silent
      failures when writing data to the indirect register.
      
      USB drivers where already protected under a mutex,
      so rename the mutex and make PCI drivers use the mutex
      as well.
      This now means that BBP and RF registers are no longer
      accessible in interrupt context. That is not a bad
      situation since the slow behavior of accessing
      those registers means we don't _want_ to access them
      in interrupt context either.
      Signed-off-by: default avatarIvo van Doorn <IvDoorn@gmail.com>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      8ff48a8b
    • Ivo van Doorn's avatar
      rt2x00: Optimize get_duration / get_duration_res · bad13639
      Ivo van Doorn authored
      We can optimize get_duration and get_duration_res
      by making them a macro. They are really simple
      calculation handlers so this doesn't matter much.
      
      Often (especially in rt2400pci and rt2500pci,
      the arguments are hardcoded, and the result value
      is passed into other hardcoded values.
      
      By making the functions a macro GCC can
      optimize the entire thing much better.
      Signed-off-by: default avatarIvo van Doorn <IvDoorn@gmail.com>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      bad13639
    • Ivo van Doorn's avatar
      rt2x00: Cleanup TX/RX entry handling · 798b7adb
      Ivo van Doorn authored
      Merge the callback functions init_txentry() and
      init_rxentry(). This makes life in rt2x00lib a
      lot simpler and we can cleanup several functions.
      
      rt2x00pci contained "fake" FIELD definitions for
      descriptor words. This is not flexible since it
      assumes the driver will always have the same field
      to indicate if a driver is available or not.
      This should be dependent on the driver, and we
      should add a callback function for this.
      Signed-off-by: default avatarIvo van Doorn <IvDoorn@gmail.com>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      798b7adb
  4. 10 Nov, 2008 2 commits
    • Ivo van Doorn's avatar
      rt2x00: Remove debugfs CSR access wrappers · 743b97ca
      Ivo van Doorn authored
      Move calculation of CSR register offset into rt2x00debug.c
      and remove the wrapper functions from each individual driver.
      (Except rt2500usb, which still needs to wrap for the
      different value type argument).
      Signed-off-by: default avatarIvo van Doorn <IvDoorn@gmail.com>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      743b97ca
    • Ivo van Doorn's avatar
      rt2x00: Optimize configuration handling · e4ea1c40
      Ivo van Doorn authored
      Implement latest changed from mac80211 configuration
      handling to optmize configuration handling in rt2x00.
      
       * Remove set_retry_limit callback function, handled
         through config()
       * Move config_antenna to its own callback function,
         it isn't handled by mac80211 anymore
       * Use IEEE80211_CONF_CHANGED_* flags and remove manual
         checks
       * Removed deprecated short slot setting through config()
         and put it in config_erp() through which mac80211 now
         configures it
       * Remove config_phymode() and move contents to config_erp()
         since it only managed the basic rates which is now
         determined by mac80211 through config_erp().
      Signed-off-by: default avatarIvo van Doorn <IvDoorn@gmail.com>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      e4ea1c40
  5. 31 Oct, 2008 1 commit
  6. 27 Oct, 2008 1 commit
  7. 11 Sep, 2008 2 commits
  8. 29 Aug, 2008 1 commit
    • Ivo van Doorn's avatar
      rt2x00: Fix race conditions in flag handling · 0262ab0d
      Ivo van Doorn authored
      Some of the flags should be accessed atomically to
      prevent race conditions. The flags that are most important
      are those that can change often and indicate the actual
      state of the device, queue or queue entry.
      
      The big flag rename was done to move all state flags to
      the same naming type as the other rt2x00dev flags and
      made sure all places where the flags were used were changed. ;)
      
      Thanks to Stephen for most of the queue flags updates,
      which fixes some of the most obvious consequences of the
      race conditions. Among those the notorious:
      
      rt2x00queue_write_tx_frame: Error - Arrived at non-free entry in the non-full queue 0.
      rt2x00queue_write_tx_frame: Error - Arrived at non-free entry in the non-full queue 0.
      rt2x00queue_write_tx_frame: Error - Arrived at non-free entry in the non-full queue 0.
      Signed-off-by: default avatarStephen Blackheath <tramp.enshrine.stephen@blacksapphire.com>
      Signed-off-by: default avatarIvo van Doorn <IvDoorn@gmail.com>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      0262ab0d
  9. 22 Aug, 2008 1 commit
  10. 14 Jul, 2008 2 commits
  11. 09 Jul, 2008 1 commit
  12. 08 Jul, 2008 1 commit
  13. 26 Jun, 2008 3 commits
  14. 14 Jun, 2008 4 commits
  15. 21 May, 2008 9 commits
  16. 14 May, 2008 1 commit
    • Bruno Randolf's avatar
      mac80211: use hardware flags for signal/noise units · 566bfe5a
      Bruno Randolf authored
      trying to clean up the signal/noise code. the previous code in mac80211 had
      confusing names for the related variables, did not have much definition of
      what units of signal and noise were provided and used implicit mechanisms from
      the wireless extensions.
      
      this patch introduces hardware capability flags to let the hardware specify
      clearly if it can provide signal and noise level values and which units it can
      provide. this also anticipates possible new units like RCPI in the future.
      
      for signal:
      
        IEEE80211_HW_SIGNAL_UNSPEC - unspecified, unknown, hw specific
        IEEE80211_HW_SIGNAL_DB     - dB difference to unspecified reference point
        IEEE80211_HW_SIGNAL_DBM    - dBm, difference to 1mW
      
      for noise we currently only have dBm:
      
        IEEE80211_HW_NOISE_DBM     - dBm, difference to 1mW
      
      if IEEE80211_HW_SIGNAL_UNSPEC or IEEE80211_HW_SIGNAL_DB is used the driver has
      to provide the maximum value (max_signal) it reports in order for applications
      to make sense of the signal values.
      
      i tried my best to find out for each driver what it can provide and update it
      but i'm not sure (?) for some of them and used the more conservative guess in
      doubt. this can be fixed easily after this patch has been merged by changing
      the hardware flags of the driver.
      
      DRIVER          SIGNAL    MAX	NOISE   QUAL
      -----------------------------------------------------------------
      adm8211         unspec(?) 100   n/a     missing
      at76_usb        unspec(?) (?)   unused  missing
      ath5k           dBm             dBm     percent rssi
      b43legacy       dBm             dBm     percent jssi(?)
      b43             dBm             dBm     percent jssi(?)
      iwl-3945        dBm             dBm     percent snr+more
      iwl-4965        dBm             dBm     percent snr+more
      p54             unspec    127   n/a     missing
      rt2x00          dBm	        n/a     percent rssi+tx/rx frame success
        rt2400        dBm             n/a
        rt2500pci     dBm             n/a
        rt2500usb     dBm             n/a
        rt61pci       dBm             n/a
        rt73usb       dBm             n/a
      rtl8180         unspec(?) 65    n/a     (?)
      rtl8187         unspec(?) 65    (?)     noise(?)
      zd1211          dB(?)     100   n/a     percent
      
      drivers/net/wireless/ath5k/base.c:      Changes-licensed-under: 3-Clause-BSD
      Signed-off-by: default avatarBruno Randolf <br1@einfach.org>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      566bfe5a
  17. 07 May, 2008 2 commits
  18. 01 May, 2008 2 commits
  19. 01 Apr, 2008 1 commit