Part Number: TMDXEVM8148
Hi everyone,
I'm currently trying to execute the saLoopBack from the EZSDK packadge (5 05 02 00) with a composite input ( EZSDK_FOLDER/example-applications/linux-driver-examples-psp04.04.00.01/video )
So I did a "make all" and got some binaries that i put on my target using a NFS
Next, on my target:
1 /etc/init.d/matrix-gui-e stop (as mentioned in http://processors.wiki.ti.com/index.php/DM814x_AM387x_EZ_5.02_Software_Developers_Guide#Running_the_pre-installed_applications_on_the_target_file_system part on how to launch pré-compile binaries)
/etc/init.d/pvr-init stop
2 insmod syslink.ko ( as mentioned in http://processors.wiki.ti.com/index.php?title=TI81XX_PSP_VIDEO_CAPTURE_Driver_User_Guide&redirect=no )
slaveloader startup VPSS-M3 dm814x_hdvpss.xem3 (didn't find the ti816x_hdvpss.xem3 ... so I search for any other .xem3 files on my system :) )
insmod vpss.ko
insmod tvp7002.ko
insmod ti81xxfb.ko vram=0:40M,1:1M,2:1M (as explain in the end of the doc with the sample application)
insmod ti81xxvo.ko
insmod ti81xxvin.ko
So far so good :)
After that i launched saLoopBack, I got an issue:
Driver Name: ti81xxvin
Driver bus info: TI81xx Platform
Card: TI81xx_catalogue
Driver is capable of doing capture
Querying DV Preset failed
So i have try other /dev/videoX thinking that may be the issue here but it didn't work ...
So i look on Internet and found out about the fact that the composite (and also the S-Video) input needed the tvp5147 module to be install.
Okai np, I followed the guide on how to install other decoder http://processors.wiki.ti.com/index.php/DM81xx_AM38xx_Adding_External_Decoders_to_V4L2_Capture_Driver
But i found that tvp514x source code was already into ESDK so I try to just compile everything with menuconfig thinking (once again ...) that it would help.
To be exacte, I cross-recompile the kernel (uImage) and with menuconfig select the tvp514x module. After the cross-recompile the modules and copy/paste them on my target.
But, well u may have guess, nothing more expect the fact that i can insmod the module but that all.
So back to the guide and internet and found this https://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/717/t/497897
So i got the files that he or she change, put them where the other were and did the same thing as before (cross-recompile kernel and module + copy/paste)
Btw i looked into the files but didn't understand the change :( ...
And now with lsmod i got:
Module Size Used by
ti81xxvin 20567 0
ti81xxvo 21210 0
ti81xxfb 21979 0
tvp7002 6429 0
vpss 74936 3 ti81xxvin,ti81xxvo,ti81xxfb
syslink 1133911 0
tvp514x 10284 1
That is, i guess, okai, because of the 1 next to tvp514x
But, launched saLoopBack and got the same issue as before Querying DV Preset failed :(
The issue means (according to https://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/716/p/636981/2350874 ) that the system is not able to detect the input source, but I don't what is creating the issue because as far as i know everything is connecting ( DVD player -> Scart _TO_composite -> cable -> composite input of the TMDXEVM8148 )
Any idea on What did I do wrong ?
A lot of thanks in advance,
Best regard,
Marc
