cvs commit: src/sys/dev/ath if_ath.c if_athvar.h

[Sam Leffler]

sam         2008-05-29 00:10:48 UTC

  FreeBSD src repository

  Modified files:
    sys/dev/ath          if_ath.c if_athvar.h 
  Log:
  Cleanup power handling and fix suspend/resume:
  o do not put the chip into full sleep in ath_stop as it gains
    nothing and causes many parts to hang in ath_detach because we
    may touch the chip during vap teardown; this may also fix issues
    with unloading the module
  o add a note in ath_detach to explain ath_hal_detach puts the
    chip in low power mode; this is useful to know as it means
    unloading the module will place a pci device in the lowest
    possible power state
  o leave an #ifdef notyet marker for powering down the chip when
    a device is marked down; we can't do that until we handle all
    the ways the driver may be entered and touch the chip
  o fix resume by reloading the h/w key cache as it's been clobbered
    (for pci) by the socket being powered off; for station mode we
    directly stop+init the chip and then simulate a beacon miss to
    get the upper layers sync'd up; for other configs we must brute
    force stop+start the vaps so they go through the state machine
  
  Revision  Changes    Path
  1.189     +61 -24    src/sys/dev/ath/if_ath.c
  1.65      +2 -1      src/sys/dev/ath/if_athvar.h