svn commit: r186520 - head/sys/dev/puc

[M. Warner Losh]

In message: <495B406F.2040305 at localhost.inse.ru>
            Roman Kurakin <rik at inse.ru> writes:
: M. Warner Losh wrote:
: > In message: <200812271522.mBRFMMHY074982 at svn.freebsd.org>
: >             Roman Kurakin <rik at FreeBSD.org> writes:
: > : Author: rik
: > : Date: Sat Dec 27 15:22:22 2008
: > : New Revision: 186520
: > : URL: http://svn.freebsd.org/changeset/base/186520
: > : 
: > : Log:
: > :   Add support for the Oxford OX16PCI958-based card.
: > :   
: > :   Note, that the patch provided with this card for the Linux states that
: > :   the card uses DEFAULT_RCLK * 2, while in fact it is '* 10'.  So probably
: > :   we should also use the subdevice/subvendord here. For now just ignore
: > :   that fact.
: >
: > I've had problems with doing that on some Oxford based cards.  The
: > vendor that uses them doesn't set them up, so you can't tell my
: > cardbus oxford card from the pcie oxford card that someone else sent
: > me patches for: both with different clock multipliers...
: >   
: Probably we need to implement AUTODETECT_RCLK. I've had the patch,
: but it worked only for modules, cause there was no working timers while the
: cards probe time if the driver was compiled in. I've planned to move 
: detection
: code to the first open and do some cleanup after the detection, but 
: didn't do
: that.

I'd like to see that.  I think we can defer the detection of RCLK to
later.  How accurate is this, btw?  How dependent on timing of
interrupts is it?

Warner