>> Hello,
>>
>> I have this card (MPC718) on my Acer Aspire Idea 500.
>>
>> I?m quite eager to see it work. If testing is required, please do let
>> me know, I will be glad to help.
>
> I assume you already have the cx23418 digitizer, apu, and cpu firmware
> files already installed on your system.
Yes.
> We need to find out how the cards are wired up. Here's what you can do
> to help get the analog side of the card working:
>
> 1. In cx18-cards.c find the cx18_card_mpc718 definition structure.
>
> 2. Change
> .v4l2_capabilities = 0,
> to
> .v4l2_capabilities = CX18_CAP_ENCODER,
>
> 3. Start with the composite input (select using v4l2-ctl -i2). (If your
> Acer box doesn't have a composite input, skip to step 4.)
>
> If the Composite 1 input does not work, find the line:
>
> { CX18_CARD_INPUT_COMPOSITE1, 1, CX23418_COMPOSITE3 }
>
> in video_inputs. Replace CX23418_COMPOSITE3 with CX23418_COMPOSITE1 and
> rebuild, and reinstall the driver, and unload the old module and load
> the new module. Then test again. Keep iterating with CX23418_COMPOSITE2
> through CX23418_COMPOSITE8. One of these 8 possible inputs should work.
>
Here are my observations so far:
1. The Yuan card has 2 tuners in dmesg I see that the first one
intializes, however the second one gives errors.
---
[ 79.010881] cx18: Start initialization, version 1.0.0
[ 79.010940] cx18-0: Initializing card #0
[ 79.010944] cx18-0: Autodetected Yuan MPC718 card
[ 79.010981] cx18-0: Unreasonably low latency timer, setting to 64 (was 2)
[ 79.011173] cx18-0: cx23418 revision 01010000 (B)
[ 79.107114] cx18-0: Not yet supported!
[ 79.322601] cx18-0: Disabled encoder IDX device
[ 79.322641] cx18-0: Registered device video0 for encoder MPEG (2 MB)
[ 79.322664] cx18-0: Registered device video32 for encoder YUV (2 MB)
[ 79.322682] cx18-0: Registered device video24 for encoder PCM audio (1 MB)
[ 79.322701] cx18-0: Registered device radio0 for encoder radio
[ 80.026541] cx18-0: loaded v4l-cx23418-dig.fw firmware (16382 bytes)
[ 80.107921] cx18-0: loaded v4l-cx23418-apu.fw firmware V00120000
(141200 bytes)
[ 80.199268] cx18-0: loaded v4l-cx23418-cpu.fw firmware (174716 bytes)
[ 80.205197] cx18-0: FW version: 0.0.71.0 (Release 2006/12/29)
[ 80.763969] cx18-0: Initialized card #0: Yuan MPC718
[ 80.764006] cx18-1: Initializing card #1
[ 80.764011] cx18-1: Autodetected Yuan MPC718 card
[ 80.764057] cx18-1: Unreasonably low latency timer, setting to 64 (was 2)
[ 80.764075] cx18-1: ioremap failed, perhaps increasing
__VMALLOC_RESERVE in page.h
[ 80.764080] cx18-1: or disabling CONFIG_HIGHMEM4G into the kernel would help
[ 80.764085] cx18-1: Error -12 on initialization
[ 80.764094] cx18: probe of 0000:02:01.0 failed with error -12
[ 80.764175] cx18: End initialization
---
Additioanally I've noticed that running modprobe -r cx18 && modrobe -v
cx18 produces the same dmesg output for both cards as in the above
case for card #1. So only option is to restart the pc in case it is
required to initialize the card.
2. The acer (which is a multimedia PC) provides 3 composite inputs two
through a scart and one through the front pannel (the manual refers to
these as AV1 , AV2 and AV3) so since I did not know that the front
pannel exposes AV2 - I started with that one.
The results for AV2 were:
On COMPOSITE 1,2,3,4,7,8. When trying to test I got a gray screen
On 5 - colorful snow
On 6 - a distorted video (skewed out of horizontal sync and black/white)
Once I discovered the 2 scarts in the back. I thought it would be
appropriate to redo the entire test with AV1 input.
The results for AV1 were:
On 1 - a distorted video (skewed out of horizontal sync and
black/white) *yes, the same result as COMPOSITE6 on AV2*
On 2,3,4,5,6,7,8 - gray screen (sometimes with a "spark" or two)
I am wondering if I should be testing AV 3 now and if the results
above indicate anything?
Will the driver distinguish between the AV1,2 and 3 inputs (in the
future)? It would be deffintelly nice.
I will continue with the further tests in the next days.
> 4. Next try S-Video input (v4l2-ctl -i1): edit the line
>
> { CX18_CARD_INPUT_SVIDEO1, 1, CX23418_SVIDEO1},
>
> and replace CX23418_SVIDEO1 with CX23418_SVIDEO2 and rebuild and
> reinstall the driver, and unload the old module and load the new module.
> Then test again. Keep iterating with CX23418_SVIDEO2 through
> CX23418_SVIDEO4, and hopefully one will work.
>
> If you get one to work, but it is only black and white, then the card
> uses an uncommon combination of Luma and Chroma pins. Make a note of
> which one gives you a black and white picture (that'll be the correct
> Luma pin) and we'll walk through how to set the right Chroma pin. (The
> end result will be something like
> "CX23418_SVIDEO_LUMA1|CX23418_SVIDEO_CHROMA4", from the range of values
> CX23418_SVIDEO_LUMA1-4 and CX23418_SVIDEO_CHROMA4-8.)
>
>
> 5. Tuner: first get the firmware. See the file
> linux/Documentation/video4linux/extract_xc3028.pl for instructions.
>
>
> 6. Now modprobe cx18. Then run modprobe -r cx18 and modprobe cx18 again. If
> you get errors in the kernel log regarding the xceive tuner, then you
> need to change the xceive_pin setting in the card definition.
> It should be in the range 8-15. Try 15 first.
>
>
> 7. Once the tuner firmware appears to be loading, We need to find
> the correct composite input for the tuner by editing the line:
>
> { CX18_CARD_INPUT_VID_TUNER, 0, CX23418_COMPOSITE7 },
>
> Again, it can be any value from CX23418_COMPOSITE1-8. Rebuild,
> reinstall, unload, and reload and test.
>
>
> 8. To get audio from the tuner, you may need to change:
>
> { CX18_CARD_INPUT_AUD_TUNER, CX23418_AUDIO5, 0 },
>
> Possible values: CX23418_AUDIO4-8 or CX23418_AUDIO_SERIAL. Rebuild,
> reinstall, unload, and reload and test.
>
> If none of those work, we may need to start experimenting with GPIO
> pins.
>
>
> 9. For line in audio, you can try changing:
>
> { CX18_CARD_INPUT_LINE_IN1, CX23418_AUDIO_SERIAL, 0 }
>
> to CX23418_AUDIO4-8 if it doesn't already work. (I'm not expecting that
> to work though).
I did have audio wile testing composite on AV1.
> If you have no line in audio after that, we may need to start
> experimenting with GPIO pins.
>
>
> Let Hans or I know how it goes. Especially for audio, we're having some
> issues with the Hauppauge cards and mono/stereo audio, and Brian Hope on
> the ivtv-users list has already indicated he currently gets no audio
> with his MPC718 (He's working through similar steps.)
>
Seems I do not have a problem with line in audio on AV1, however I did
not check mono/stereo functionality.
Greetings,
Yuri
> Regards
> Andy
>
>>
>>
>> Greetings,
>>
>> Yuri
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