On 11/04/10 07:47 AM, Andy Walls wrote:
On Sun, 2010-04-11 at 00:56 -0400, Andy Walls wrote:
Try this:
http://linuxtv.org/hg/~awalls/cx18-audio2
this waits 1.5 seconds after an input/channel change to see if the audio
standard micrcontroller can detect the standard. If it can't, the
driver tells it to try a fallback detection. Right now, only the NTSC-M
fallback detection is set to force a mode (i.e. BTSC), all the others
"fall back" to their same auto-detection.
Some annoyances with the fallback to a forced audio standard, mode, and
format:
1. Static gets unmuted on stations with no signal. :(
2. I can't seem to force mode "MONO2 (LANGUAGE B)". I'm guessing the
microcontroller keeps setting it back down to "MONO1 (LANGUAGE A/Mono L
+R channel for BTSC, EIAJ, A2)" Feel free to experiment with the LSB of
the fallback setting magic number (0x1101) in
cx18-av-core.c:input_change().
I fixed #2. I had a bug so the first patch didn't properly set the
fallback audio mode.
I still need to fixup cx18_av_s_tuner() and cx18_av_g_tuner() to take
into consideration that we might be using a forced audio mode vs. auto
detection. However, that is not essential for testing; this should be
good enough for testing.
..
Those new patches don't want to coexist with the earlier hard/soft reset
changes. There's always a chance that *both* things might be needed,
and the reset stuff didn't look obviously "bad". Why dropped?
Thanks
--
Mark Lord
Real-Time Remedies Inc.
mlord@xxxxxxxxx
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