[ECOS] First try eCos port for uGFX

["Andrew Hannam" <andrewh@inmarket.com.au>]

I have implemented a first attempt at an eCos port for uGFX.

Unfortunately I have run out of time for now as I have to spend time on some
other work.
I wanted to put this up here in case someone in the eCos community would
like to continue that process to get a full working port and package
together for uGFX under eCos.

Where it is at...
 - The eCos port can be found in the eCos branch of the uGFX git repository
at https://bitbucket.org/Tectu/ugfx.git
 - The uGFX GOS module port should be complete but is probably not
implemented very well. Eg currently it assumes the C runtime
    is initialised to use functions such as malloc() and free().
- There is a board interface file
"boards/addons/gdisp/board_framebuffer_eCos.h" that should interface the
uGFX
   library using the uGFX framebuffer driver to the eCos framebuffer device.
This file should be copied into the
   users project and renamed "board_framebuffer.h". Alternatively any of the
other uGFX display drivers
   can be used.
- Code is written but has not been compiled or tested. Unfortunately I have
not yet got the eCos tools working on my
   machine (Win8.1 x64, 64 bit Cygwin). I suspect I need to install 32 bit
Cygwin but currently have run out of time.
- No packaging has been started yet. It looks like all the uGFX compile
options could very easily be added to
   make a "full featured" eCos package as the options system looks
relatively compatible.

If no-one is able to take it up, I hope in the next few weeks I will be able
to get back to it.

Regards,
Andrew.


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