In <[EMAIL PROTECTED]> message,
[EMAIL PROTECTED] wrote:
> I've gone over the saa7115gv.c changes compared to the standard
> saa7115.c. I am trying to determine what the essential changes are so
> that I can add those to the kernel saa7115.c.
This work is a part about which we worried most for merging.
Thank you for starting the work.
> How did you get the values in saa7115gv.c? From an I2C dump? I see that
> all audio configs are modified: are these changes also from an I2C dump
> or are they calculated? Are these changes NTSC-M-JP specific?
We made saa7115gv by using the result of I2c dump.
The noisy synchronous gap is generated in the video and audio, when
original saa7115 is used on the card. I am doubting the combinations
with the setting of wm8739.
Though it might take time to answer a little, I will test the method
written in mail by you.
thanks
---
T.Adachi
> Can you try the following steps:
>
> 1) first use the unmodified kernel saa7115.c instead of saa7115gv. What
> works? Audio? Video? Neither?
>
> 2) Apply this section from the diff to saa7115.c and try the same test.
>
> - 0x15, 0x03, /* VGATE pulse start */
> - 0x16, 0x11, /* VGATE pulse stop */
> - 0x17, 0x9c, /* VGATE MSB and other values */
> + 0x15, 0x01, /* VGATE pulse start */
> + 0x16, 0x12, /* VGATE pulse stop */
> + 0x17, 0xd8, /* VGATE MSB and other values */
>
> 3) Apply this section and try again:
>
> @@ -361,7 +361,7 @@
> static const unsigned char saa7115_init_misc[] = {
> 0x38, 0x03, /* audio stuff */
> 0x39, 0x10,
> - 0x3a, 0x08,
> + 0x3a, 0x80,
>
> 0x81, 0x01, /* reg 0x15,0x16 define blanking window
> */
> 0x82, 0x00,
>
> 4) Apply this section and try again:
>
> @@ -468,8 +468,8 @@
> 0x5d, 0xbd,
> 0x5e, 0x35,
>
> - 0x02, 0x84, /* input tuner -> input 4, amplifier
> active */
> + 0x02, 0xC6, /* input tuner -> input 4, amplifier
> active */
> 0x09, 0x53, /* 0x53, was 0x56 for 60hz. luminance
> control */
>
> 0x80, 0x20, /* enable task B */
> 0x88, 0xd0,
>
> Also try value 0xC0 for register 0x02. I'd like to know if that makes a
> difference.
>
> 5) Apply all the audio config changes from the diff
> (saa7115_cfg_48_audio[] etc.) and try again.
>
> I think none of the other changes are needed. Try to find out how to
> minimize the amount of change.
>
> Most changes seem to be in the area of brightness, contrast, etc and
> gain control. I suspect that the saa7115.c default will also work.
>
> Does saa7115 VBI support work for you, BTW? I'm not sure what effect the
> changes to 0x15-0x17 have for VBI. You may have to experiment with the
> original 0x15-0x17 values.
>
> If you have any questions, don't hesitate to ask.
>
> Thanks,
>
> Hans
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