From: Daniel Ritz <daniel.ritz@gmx.ch>
To: Ivica Ico Bukvic <ico@fuse.net>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: RE: [linux-audio-user] snd-hdsp+cardbus+M6807 notebook=distortion -- First good news
Date: Sat, 10 Apr 2004 03:47:56 +0200 [thread overview]
Message-ID: <200404100347.56786.daniel.ritz@gmx.ch> (raw)
you can get the same output with
hexdump -v /proc/bus/pci/BUS/DEVICE
where BUS/DEVICE is the CB controller. eg. 00/09.0
about the bits:
- at 81h, from D0 to 90: this is part of the system control register. the bit
that changed is "Memory read burst enable upstream"
- at c9h, from 04 to 06: this is an undocumented test register. TI just says
reserved, EnE says test register, for the bit that changed it adds the
comment TLTEnable (default to 1). no idea what it is. it _could_ have
something to do with the cardbus latency timer...you can try to play a bit
with the latency setting after resume when this bit is set. try writing to
offset 1Bh, put in at least 40h
to change the bits under linux, use setpci (also good for reading)
about the memory read burst upstream: 2.6 kernels enable it for most of
the TI chips and since 2.6.5 also for some TI clones from EnE (incl. EnE1410).
rgds
-daniel
next reply other threads:[~2004-04-10 1:51 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-10 1:47 Daniel Ritz [this message]
2004-04-10 3:30 ` [linux-audio-user] snd-hdsp+cardbus+M6807 notebook=distortion -- First good news Ivica Ico Bukvic
2004-04-10 3:30 ` Ivica Ico Bukvic
2004-04-11 13:25 ` Russell King
2004-04-11 16:08 ` Tim Blechmann
2004-04-11 23:45 ` Daniel Ritz
2004-04-12 1:39 ` [linux-audio-user] snd-hdsp+cardbus+M6807 notebook=distortion -- FIXED! Ivica Ico Bukvic
2004-04-12 1:39 ` Ivica Ico Bukvic
2004-04-12 5:24 ` aplay playback-pointer Mathieu Rondonneau
2004-04-12 15:45 ` start stop Mathieu Rondonneau
2004-04-12 16:58 ` start stop resolved Mathieu Rondonneau
2004-04-12 17:59 ` start stop Jaroslav Kysela
2004-04-13 16:25 ` aplay playback-pointer Clemens Ladisch
2004-04-14 3:06 ` aplay noise Mathieu Rondonneau
2004-04-17 21:06 ` arecord wav file, buffer different Mathieu Rondonneau
2004-04-20 9:08 ` Clemens Ladisch
2004-04-12 7:28 ` [linux-audio-user] snd-hdsp+cardbus+M6807 notebook=distortion -- FIXED! Russell King
2004-04-12 9:08 ` David Hinds
2004-04-12 9:27 ` Russell King
2004-04-12 14:40 ` Ivica Ico Bukvic
2004-04-12 14:40 ` Ivica Ico Bukvic
2004-04-12 14:53 ` Russell King
2004-04-12 15:31 ` Daniel Ritz
2004-04-12 15:38 ` Russell King
2004-04-12 18:03 ` Daniel Ritz
2004-04-14 13:41 ` Tim Blechmann
2004-04-12 22:06 ` Tim Blechmann
2004-04-12 22:06 ` Tim Blechmann
2004-04-12 11:02 ` Tim Blechmann
2004-04-12 11:02 ` Tim Blechmann
2004-04-12 10:39 ` Russell King
2004-04-12 12:09 ` Tim Blechmann
2004-04-12 15:19 ` Daniel Ritz
2004-04-12 15:19 ` Daniel Ritz
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