[alsa-devel] Channel swapping issue on TI OMAP3/TWL4030

Peter Ujfalusi peter.ujfalusi at nokia.com
Tue Feb 22 08:27:48 CET 2011


On 02/20/11 06:01, ext ylin at mail.com wrote:
>>> Or can you share the relevant configuration (from your machine 
> driver)
>>> with us?
> And, these are McBSP2 registers with both Tx and Rx audio running.
> **** McBSP2 regs ****
> DRR2:  0xffee
> DRR1:  0x0000
> DXR2:  0x0000
> DXR1:  0x0000
> SPCR2: 0x02f5
> SPCR1: 0x0031
> RCR2:  0x8041
> RCR1:  0x0040
> XCR2:  0x8041
> XCR1:  0x0040
> SRGR2: 0x001f
> SRGR1: 0x0f00
> PCR0:  0x000f
> ***********************

Both the twl and McBSP config seams to be in sync.
I do not see anything, which stands out...

I think you need to implement the PRCM compliant interrupt config to
check for McBSP underflow/overflow.

I'll try to resurrect my Beagle board, since that as well have the twl
codec on McBSP2...


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