[linux-dvb] AV7110 MPEG decoder status APIs

[Ralph Metzler <rjkm@metzlerbros.de>]

=?ISO-8859-1?Q?R=E9gis_Bossut?= writes:
 > A long time ago, there was an API named GetDecoderStatus for requesting 
 > information about the MPEG decoder state registers from the AV7110. The 
 > REQCOM enum still shows AudioState and VideoState[1-3]. Is there (has 
 > there always been) still valuable information behind those requests to 
 > the firmware (supposedly being a mapping between AV7110 registers at 
 > base 0x6c000000 (audio) and 0x6a000000 (video)) ?

AFAIR, the video states are just values of some variables of the 
video microcode and not any register values. It seems the microcode
parses the MPEG ES and writes them to a shared memory area 
where the ARM can read it. I think this area is also described in the
datasheet, somewhere at 0xcc000000 I think.


Ralph


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