* OMAPDSS basic concepts
@ 2012-04-24 16:53 Felix Lin
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From: Felix Lin @ 2012-04-24 16:53 UTC (permalink / raw)
To: linux-omap
Hello All,
I'm pretty new to the OMAP DSS and would like to understand how it works under Linux/Android. I have read the TRM and understood that the DSS uses DMA to move pixels from the main memory to several hardware pipelines, with each burst of a few lines. But I am wondering -
1 - when will DSS start to move a new frame from the framebuffer to hardware pipelines? Is it triggered by some timer, or by some signals from the LCD panel (e.g., VSYNC)?
2 - is it possible to measure/estimate the time taken in DMAing a frame?
I also looked into the kernel doc and source code but found no answer. I appreciate any comments or pointers.
Thanks a lot!
-Felix
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2012-04-24 16:53 OMAPDSS basic concepts Felix Lin
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