From: erik@dd.nec.com.au (Erik Christiansen)
To: linuxppc-embedded@ozlabs.org
Subject: Re: I have a question about:ppc pci and frame_buffer
Date: Thu, 26 Jul 2007 19:11:10 +1000 [thread overview]
Message-ID: <20070726091110.GB8884@dd.nec.com.au> (raw)
In-Reply-To: <749612.18053.qm@web15210.mail.cnb.yahoo.com>
On Thu, Jul 26, 2007 at 03:58:04PM +0800, ???? ?? wrote:
> here below is what i want :
> #################################################
> 0..................7 8............15 16..............24 25.................31
> B G R TRANS
> now it is this:
> #################################################
> 0..................7 8............15 16..............24 25.................31
> TRANS R G B
In U-boot, there is what you might do yourself, perhaps:
#define LONGSWAP(x) ((((x) & 0x000000ff) << 24) | (((x) & 0x0000ff00) << 8)|\
(((x) & 0x00ff0000) >> 8) | (((x) & 0xff000000) >> 24) )
#define PCISWAP(x) LONGSWAP(x)
Any good for your purpose?
Erik
prev parent reply other threads:[~2007-07-26 9:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-26 7:58 i have a question about:ppc pci and frame_buffer 利平 张
2007-07-26 9:11 ` Erik Christiansen [this message]
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