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AM3505 Frame buffer support

sairam
Prodigy 150 points
Other Parts Discussed in Thread: AM3505, AM3517

Hi All ,

 

Does the AM3505 support the

Dual Frame Buffer on Graphics and Video1 pipe lines ?

 

I have a requirement  in which i have to pop up a GTK based application on Video1 while showing the video on Video2 .

 

That means i have to run  Xserver on Video1 frame buffer .

 

IS this possible ? If so please let me know .

 

 

If i enable my kernel and u-boot following the instructions in this wiki link ,

 

http://processors.wiki.ti.com/index.php/Dual_Frame_Buffer_on_OMAP35x

 

I am not able to play any video on video2.

 

PLease suggest a solution .

 

Thanks in advance

regards ,

Sairam.S

  • 0
    TI__Expert 8180 points

    Hi Sriram,

    I am not X-Server expert, so may not be able to help you from that perspective, but I should be able to get you all driver level issues.

    I am quite not sure which PSP release you are using, but the page itself is quite old and referring to older interfaces which won't work on latest PSP releases (or DSS2 driver). Having said that, video/display on video2 plane should work without any issues. As mentioned in the above Wiki, the video2 layer is always on top, so if you try to render any display on top of video2, that will appear at the top.

    If you provide me some basic information like,

    - How many FB devices you have?

    - Memory and resolution configured for all FB devices.

    - Are you using V4L2 driver interface at all?

    Also I would suggest to get simple application running on top of video2, then you can debug in x-server.

    Thanks.

    Vaibhav

  • 0 in reply to Vaibhav Hiremath
    Prodigy 150 points

    Hi Vaibhav,

     

    I am using the PSP3.0 for AM3517 processor.

     

    How many FB devices you have? --  I would like to have Two FB devices ( fb0,fb1).

    - Memory and resolution configured for all FB devices. ( 1368x768)

     

    - Are you using V4L2 driver interface at all? ---- Yes . for capturing video and displaying the video .

     

    Sample application is running on /dev/video2 when i configure my  kernel (CONFIG_FB_OMAP2_NUM_FBs=1).

     

    if i  make it  CONFIG_FB_OMAP2_NUM_FBs=2 , the sampe application does not  work .

     

    saMmmapLoopback.c application reports that VIDIOC_G_FMT failed .

     

    please help.

     

     

    regards ,

    Sairam.S