Sl6000 Hardware Accelerated Display?, Anyone figured out how to use it? Options

[cwaig]

I've been looking at the kernel source for the SL6000's framebuffer driver, and I can see an API provided to access the hardware acceleration - but it's documentation is pretty much zero

The only example of it being actually used in the driver itself is the tc6393_clear_screen() function, that uses the hardware rectangle fill to clear the screen. There's a very interesting looking command set provided in the tc6393fb.h file, and an ioctl provided to pass lists of commands to the graphics hardware for processing - but the actual commands (although defined) aren't actually documented

The clear screen example in the driver is
static u32 cmd[6];
cmd[0] = PXAIO_COMDI_DSADR|PXAIO_COMDD_DSADR(((int)remapped_fbuf));
cmd[1] = PXAIO_COMDI_DHPIX|PXAIO_COMDD_DHPIX(xres - 1);
cmd[2] = PXAIO_COMDI_DVPIX|PXAIO_COMDD_DVPIX(yres - 1);
cmd[3] = PXAIO_COMDI_FILL|PXAIO_COMDD_FILL(0xffff);
cmd[4] = PXAIO_COMDI_FLGO;

Using the ioctl interface to the framebuffer, this would be:
static u32 cmd[6];
cmd[0] = 5;
cmd[1] = PXAIO_COMDI_DSADR|PXAIO_COMDD_DSADR(((int)remapped_fbuf));
cmd[2] = PXAIO_COMDI_DHPIX|PXAIO_COMDD_DHPIX(xres - 1);
cmd[3] = PXAIO_COMDI_DVPIX|PXAIO_COMDD_DVPIX(yres - 1);
cmd[4] = PXAIO_COMDI_FILL|PXAIO_COMDD_FILL(0xffff);
cmd[5] = PXAIO_COMDI_FLGO;
ioctl(fbHandle,TC6393FB_ACC_CMD_WRITE,cmd);

and then I'm guessing that if you want to make sure it's completed before carrying on, you can use:
ioctl(fbHandle,TC6393FB_ACC_SYNC,0);

But the tc6393 looks like it can do blitting as well....I've no idea what the rest of the command API def's actually do though?

And glory be - Toshiba haven't released a datasheet for the chip
When I eventually get my hands on my SL6000 (my wife's hidden it 'til Christmas) I'll start trying some of the commands, see if I can work it out through trial & error.....unless someone else beats me to it of course

SDL would go much quicker with a bit of the ol' hardware accel...

[GoLinux]

Is this the same device?

http://www.mnementh.co.uk/eseries/docs/hwnotes/tc6393/

I don't have the programming skills required to write a driver, but I work for a semiconductor company (not Toshiba, by the way...)

If you have the exact part number of the chip(s) used in the graphic section of the SL-6000L I can try to find some documentation.

[cwaig]

I believe the part number is TC6393XB - there's a tiny bit of information on Toshiba's website
here about it.

[guylhem]

That would be a sweet addon to libsdl

[GoLinux]

cwaig,

the information you can find at the link I posted previously are for the TC6393XB, although it seems they deal mostly with the memory controller section.

I'll keep digging.....

[psycoman]

asny news about TC6393XB video chip ?

[GoLinux]

Not yet... I only found this guy who wrote a driver for the NAND controller part of it:

http://lists.infradead.org/pipermail/linux...6/nand_tmio.obj

Il keep digging, I'll find a way to get a datasheet of this little monster....

[psycoman]

yeap, i send a email to this guy, he will send a partial document to me. lets see

someone can try, contact Toshiba ?

and some news, Wince .NET have a tc6393xb.dll, can use this for reverse engenier ?

[psycoman]

i get with ion, one documentation about the chip.

not complet at all but have some details, with some need it to make some hardware drivers (SDL etc..) tell me and i will send the document

[cwaig]

Has anyone made any progress with this (or seen the docs Psycoman mentioned)?

I gave it a bit of a bosh today (tried out the tests I was pondering back in december before I got my 6000), and the hardware rectangle fill stuff is straightforward (sample code available, if anyones interested). Looks like there's a line drawing mode as well (although I've not figured out how to make it do anything apart from 45degree lines). The raster op and blit stuff is still mostly a mystery (but I'm hoping to decipher some of it over the next few weeks).

I have to say, I'm surprised no-one else has tried messing with it (after all, the op-codes for the graphics hardware are given in the SL6000 kernel source)....

[seed]

any new about the TC6393XB video chip ? do someone work on a hardware accelarated display ?
do someone know about video performace of the sl6000l compare to the c1000 or c3000 (TC6393XB video chip vs W100)

[xjqian]

do someone know about video performace of the sl6000l compare to the c1000 or c3000 (TC6393XB video chip vs W100)

video performance seems to be worse than than those with hardware accl.

[seed]

do someone know about video performace of the sl6000l compare to the c1000 or c3000 (TC6393XB video chip vs W100)

video performance seems to be worse than than those with hardware accl.

..... i dont clearly understand
performance of the sl6000l are worse than c1000??

[xjqian]

do someone know about video performace of the sl6000l compare to the c1000 or c3000 (TC6393XB video chip vs W100)

video performance seems to be worse than than those with hardware accl.

..... i dont clearly understand
performance of the sl6000l are worse than c1000??

not sure about c1k and c3k. but worse than c860 with w100 hard accl driver.

[guylhem]

cwaig, did you got the docs I sent ?

Any progress ?