Hi Baskar.
system=devmem expects you to provide video-phys and video-mem, so it can
map this in userspace. If you use system=fbdev instead, it would have
used ioctls to come to the same result. For devmem, you must provide
those always.
The layers are not registered because there is no graphic driver
selected that registers your layers. I see you used
-with-gfxdrivers=none so that is logical. However, if you use
system=fbdev, this will do this for you already.
A lot of times the graphics driver determines what system you must
select. If you do not have a graphics driver, you cannot use devmem. So,
either try system=fbdev, or select a graphic driver that is devmem aware
(check the probe() function).
Greets
Niels
Baskar O wrote:
Iam trying to run multicore DFB application on my arm based device.
I have modprobed fusion.ko, created the /dev/fusion nodes and also did
"mount tmpfs /dev/shm -ttmpfs "
I configured DFB thus:
./configure --host=arm-linux --build=i386-linux --target=arm
--srcdir=`pwd` --prefix=$PREFIX --libdir=$PREFIX/lib
--libexecdir=$PREFIX/libexec --include=$PREFIX/include --disable-x11
--enable-debug --disable-voodoo --disable-mmx disable-see
--disable-sdl --enable-jpeg --enable-png --enable-gif
--enable-freetype --enable-fbdev --disable-video4linux
--disable-video4linux2 --with-gfxdrivers=none
--with-inputdrivers=linuxinput --enable-multi
When I run
[r...@bb bin]# ./arm-dfbmaster
~~~~~~~~~~~~~~~~~~~~~~~~~~| DirectFB 1.3.0 |~~~~~~~~~~~~~~~~~~~~~~~~~~
(c) 2001-2008 The world wide DirectFB Open Source Community
(c) 2000-2004 Convergence (integrated media) GmbH
----------------------------------------------------------------
(*) DirectFB/Core: Multi Application Core. (2009-04-09 15:15) [ DEBUG ]
(*) Fusion/SHM: Using MADV_REMOVE (2.6.22.19 >= 2.6.19.2)
(*) Direct/Thread: Started 'Fusion Dispatch' (-1) [MESSAGING
OTHER/OTHER 0/0] <8388608>...
(!) System/DevMem: Please supply 'video-phys = 0xXXXXXXXX' and
'video-length = XXXX' options!
(!) DirectFB/Core: Could not initialize 'system_core' core!
--> Invalid argument!
(!) DFBMaster: DirectFBCreate() failed!
--> Invalid argument!
so when run this:
[r...@bb bin]# ./arm-dfbmaster
--dfb:video-phys=0xD8909000,video-length=960000
~~~~~~~~~~~~~~~~~~~~~~~~~~| DirectFB 1.3.0 |~~~~~~~~~~~~~~~~~~~~~~~~~~
(c) 2001-2008 The world wide DirectFB Open Source Community
(c) 2000-2004 Convergence (integrated media) GmbH
----------------------------------------------------------------
(*) DirectFB/Core: Multi Application Core. (2009-04-09 15:15) [ DEBUG ]
(*) Fusion/SHM: Using MADV_REMOVE (2.6.22.19 >= 2.6.19.2)
(*) Direct/Thread: Started 'Fusion Dispatch' (-1) [MESSAGING
OTHER/OTHER 0/0] <8388608>...
(*) DirectFB/Graphics: Generic Software Rasterizer 0.6 (directfb.org
<http://directfb.org>)
(*) DirectFB/Core/WM: Default 0.3 (directfb.org)
(!) IDirectFB_Construct: No layers available! Missing driver?
(!) DFBMaster: DirectFBCreate() failed!
--> Not supported!
Questions:
1. video-phys - Is it the physical address of /dev/fb/0?, why do I
need to provide that?
2. Why do I get the "No layers available"?
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