Thanks for the quick reply. --- Alex Deucher <[EMAIL PROTECTED]> wrote:
> On 8/5/05, Steven Newbury <[EMAIL PROTECTED]> wrote: > > > > --- Alex Deucher <[EMAIL PROTECTED]> wrote: > > > > > You may also want to take a look at my unfinished radeon tv-out patch: > > > > > > http://www.botchco.com/alex/xorg/radeon_tvout.c > > > http://www.botchco.com/alex/xorg/radeon_tvout.h > > > http://www.botchco.com/alex/xorg/radeon_tvout.diff > > > > > > one of the regs (DAC2 I think) has an option to be sourced to either a > > > crtc or directly to the linear transform unit. > > > > > > Alex > > > > > > On 6/9/05, Vladimir Dergachev <[EMAIL PROTECTED]> wrote: > > > > > > > > There is an option "composite_sync" - take a look there. > > > > > > > > As for Y Cb Cr, I would expect this is implemented as some sort of > > > > transform before output. I.e. the chip still thinks it is outputting R, > G, > > > > B, just weird R G B values. > > > > > > > > In particular take a look at how gamma support is implemented in the > > > > Radeon driver for newer chipsets, it might shed some clues. > > > > OK. I've finally got the time (and Internet connection!) to look at this > > again, but I need some more help. > > > > The "composite_sync" option only seems to relate to old hw like mach64. > The > > register it toggles is listed as 0x100 in atiregs.h but is missing from > > radeon_reg.h. I've tried poking around but haven't managed to find > anything > > that works as yet. I know the TV will sync to a VGA composite signal just > the > > colours will be very wrong, the Sony PS2 _only_ outputs in composite sync > and > > I've played around with that quite a bit. > > > > Alex, I'm sure your approach is the likely to be correct but I don't really > > know where to go from here. Should I just keep trying to set random > registers > > or do you have some idea what I should do? > > Unforunately, most of the tv-out and compoent out is undocumented, or > we have limited documentation, but no real guid as to how everything > needs to be programmed. One of the Gatos guys got regular tv-out > working and Rune Peterson keeps a relatively up to date tv-out patch > here: > http://megahurts.dk/rune/tv_output.html > that might be of some help. I'll give that a go, at least I might be able to get an accelerated X server going. > > > > I did notice in your tvout patch: > > #define RADEON_TV_DAC_CNTL 0x088c > > -# define RADEON_TV_DAC_STD_MASK 0x0300 > > +# define RADEON_TV_DAC_BLANK (1 << 0) > > +# define RADEON_TV_DAC_HOLD (1 << 1) > > +# define RADEON_TV_DAC_PEDESTAL (1 << 2) > > +# define RADEON_TV_MONITOR_DETECT_EN (1 << 4) > > +# define RADEON_TV_DAC_CMPOUT (1 << 5) <-- related? > > # define RADEON_TV_DAC_BGSLEEP (1 << 6) > > +# define RADEON_TV_DAC_STD_MASK 0x0300 > > +# define RADEON_TV_DAC_STD_NTSC (1 << 8) > > # define RADEON_TV_DAC_RDACPD (1 << 24) > > # define RADEON_TV_DAC_GDACPD (1 << 25) > > # define RADEON_TV_DAC_BDACPD (1 << 26) > > > > Could RADEON_TV_DAC_CMPOUT be related to composite output or is it only for > the > > TV-out encoder hardware? > > I'm not sure. On the newer r4xx hardware component output is handled > by the tv-encoder. I'm not sure how it worked on older hardware. I've got an R200 and an RV280 which I've been experimenting with. Ideally I'd like to get the R200 working since it is by far the better card. > > > > > Any help would be greatly appreciated, at the moment I'm forced to use the > vesa > > driver in order to at least use s-video out to get any picture at all, it > > doesn't work well, no video scaling/colour conversion, no 3D or even 2D > > acceleration etc etc. TV-out would be better than what I have right now > but > > I'd really like to get it working with components, it should be easier > anyway, no? > > Not really. Ati hasn't released any information about setting up the > chip for component output. Perhaps you can dump the radeon registers > in windows and compare how that driver sets things up, or perhaps the > fglrx driver supports component out too and you could use the register > dump tools from the r300 project. > I'll check the docs for the fglrx driver see if it mentions anything. I know from reading various forums that under Windows the driver normally responds to a DDC id from the ATI component adaptor (VGA->component cable with a DDC chip built in), however people have found that by setting a registry key it's possible to get component out working with a standard RGB->component cable which is what I'm trying to use. So if all else fails I'll see if I can install a copy of Windows and get it working with component out. It seemed strange to me that I couldn't get regular VGA sync-on-green working though, it would/should have been enough for me to get some kind of output. I guess I just didn't toggle the right bit in the right register, judging by the fact that the driver doesn't support sync-on-green should I assume that it too is undocumented? Or is sync-on-green and composite sync the same thing in this case? My understanding was that composite sync meant that the H and V syncs were combined, while sync-on-green meant composite sync also combined with Green. Where as composite video was everything mixed all together with some kind of colour encoding such as PAL or NTSC and S-Video is like composite except that the colour encoding (chrominance) was carried on a separate wire. Steve ___________________________________________________________ To help you stay safe and secure online, we've developed the all new Yahoo! Security Centre. http://uk.security.yahoo.com ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf -- _______________________________________________ Dri-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dri-devel
