On Tue, Apr 09, 2013 at 04:32:30PM +0530, Vinod Koul wrote:
On Wed, Apr 03, 2013 at 01:13:27PM +0100, Charles Keepax wrote:
The app_pointer is managed locally by the compress core for memory mapped DSPs but for DSPs that are not memory mapped this would have to be manually updated from within the DSP driver itself, which is hardly very idiomatic.
app pointer means what has been written into DSP buffer, no matter if its memory mapped or not. This is updated after .copy returns so if you have been asked to copy 100bytes, and return of .copy, app pointer is incremented by 100, so why is that not true for you?
Currently though app_pointer is not updated after a copy callback the cumulative values are updated, but not app_pointer. app_pointer is only updated in the case were we don't have a copy callback and the buffer is managed by the compressed core.
I am quite happy to change that or remove this comment from the change log if we prefer but as it currently stands app_pointer will not be updated for systems that use a copy callback by the compress core.
Charles