Hi
> Em 23-09-2010 13:45, Dmitri Belimov escreveu:
> > Hi
> >
> >> Em 20-09-2010 17:07, Dmitri Belimov escreveu:
> >>> Hi
> >>>
> >>> I rework my last patch for audio and now audio works well. This
> >>> patch can be submited to GIT tree Quality of audio now is good for
> >>> SECAM-DK. For other standard I set some value from datasheet need
> >>> some tests.
> >>>
> >>> 1. Fix pcm buffer overflow
> >>> 2. Rework pcm buffer fill method
> >>> 3. Swap bytes in audio stream
> >>> 4. Change some registers value for TM6010
> >>> 5. Change pcm buffer size
> >>> --- a/drivers/staging/tm6000/tm6000-stds.c
> >>> +++ b/drivers/staging/tm6000/tm6000-stds.c
> >>> @@ -96,6 +96,7 @@ static struct tm6000_std_tv_settings tv_stds[]
> >>> = {
> >>> {TM6010_REQ07_R04_LUMA_HAGC_CONTROL,
> >>> 0xdc}, {TM6010_REQ07_R0D_CHROMA_KILL_LEVEL, 0x07},
> >>> + {TM6010_REQ08_R05_A_STANDARD_MOD,
> >>> 0x21}, /* FIXME */
> >>
> >> This didn't seem to work for PAL-M. Probably, the right value for
> >> it is 0x22, to follow NTSC/M, since both uses the same audio
> >> standard.
> >>
> >> On some tests, I was able to receive some audio there, at the
> >> proper rate, with a tm6010-based device. It died when I tried to
> >> change the channel, so I didn't rear yet the real audio, but I
> >> suspect it will work on my next tests.
> >>
> >> Yet, is being hard to test, as the driver has a some spinlock logic
> >> broken. I'm enclosing the logs.
> >
> > Yes. I have some as crash from mplayer and arecord.
> >
> >> I was able to test only when using a monitor on the same machine.
> >> All trials of using vnc and X11 export ended by not receiving any
> >> audio and hanging the machine.
> >>
> >> I suspect that we need to fix the spinlock issue, in order to
> >> better test it.
> >
> > Who can fix it?
>
> Well, any of us ;)
>
> I did a BKL lock fix series of patches, and hverkuil is improving
> them. They'll make easier to avoid problems inside tm6000. We just
> need to make sure that we'll hold/release the proper locks at
> tm6000-alsa, after applying it at the mainstream.
I found that mplayer crashed when call usb_control_msg and kfree functions.
With my best regards, Dmitry.
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