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Re: MGA driver: SyncOnGreen won't, and DRI (3D accel )problems.



On 17 Dec 2002, Chris Worley wrote:

> I look at the register indices being used and I'm stumped... The X
> driver register offset is (mga_reg.h):
> 
>     #define MGA1064_GEN_CTL         0x1d

That matches both the Mystique (MGA1064) and the G200 docs I have.

> 
> While the frambuffer driver uses an enum that would make
> "POS1064_XGENCTRL" an offset of 0x0f (in matroxfb_DAC1064.h):
> 
>     enum POS1064 {
>             POS1064_XCURADDL=0, POS1064_XCURADDH, POS1064_XCURCTRL,
>             POS1064_XCURCOL0RED, POS1064_XCURCOL0GREEN, POS1064_XCURCOL0BLUE,
>             POS1064_XCURCOL1RED, POS1064_XCURCOL1GREEN, POS1064_XCURCOL1BLUE,
>             POS1064_XCURCOL2RED, POS1064_XCURCOL2GREEN, POS1064_XCURCOL2BLUE,
>             POS1064_XVREFCTRL, POS1064_XMULCTRL, POS1064_XPIXCLKCTRL, POS1064_XGENCTRL,...

> When I compare the other register offsets in these two files for this
> DAC register set, it still makes no sense; the offsets are close, but
> different and in different orders.

These are in the order of my docs., but they show spaces between some of 
these registers; the frambuffer driver doesn't have a mapping array for 
this list of interesting registers to their addresses does it ?

-- 
Dr. Andrew C. Aitchison		Computer Officer, DPMMS, Cambridge
A.C.Aitchison@xxxxxxxxxxxxxxx	http://www.dpmms.cam.ac.uk/~werdna

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