Andy Walls wrote:
On Thu, 2010-03-04 at 20:51 -0500, Darren Blaber wrote:
Andy Walls wrote:
Hello,
I recently bought a HVR-1600 PCI card, and after playing with it for quite a
while, it seems I have come to the conclusion that audio does not work
unless I start in windows first, then reboot back into linux. I am using the
latest cx18 driver from http://linuxtv.org/hg/v4l-dvb/ . Its almost like the
card needs windows to initialize before it will work in linux. I believe to
be using the latest firmware, I grabbed it from
http://linuxtv.org/downloads/firmware/v4l-cx23418-apu.fw [along with the
rest of firmware files]. Is there anything I can do to debug this problem?
Darren,
Could you please try the cx18 driver at this repository:
http://linuxtv.org/hg/~awalls/cx18-audio
?
In two patches, I've reworked when the audio detection microcontroller's
soft and hard resets are asserted.
If those two patches don't seem to work, please change
linux/drivers/media/video/cx18/cx18-av-core.h
#define CXADEC_AUDIO_SOFT_RESET 0x810
to be
#define CXADEC_AUDIO_SOFT_RESET 0x9cc
and then see if the patches work. (I've got some conflicting
information on which register is actually the soft reset register.)
I haven't tested any of this, as I don't have an analog RF signal handy
ATM.
Regards,
Andy
Hello, I tried your repo, and tried modifying the registers. Default,
the 0x810 seems to make no difference with the audio. When changing the
register to point to 0x9cc, the tuner outputs a blank signal, completely
black. One thing I noticed is that CXADEC_GENERAL_CTL and
CXADEC_AUDIO_SOFT_RESET point to the same register. Is this intended?
Thanks.
#define CXADEC_GENERAL_CTL 0x810
#define CXADEC_AUDIO_SOFT_RESET 0x810
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