Hi Mark,
Thanks for response.
On my hardware, GSM is connected to McBSP3 not to the TWL4030 CODEC directly. What I have to do is Copy from McBSP3 and redirect this to
McBSP2.
USB GSM chip -> McBSP3
McBSP2 -> TWL4030
I have understood some thing from ur mail. I will study Openmoko ASoC and I will get back to you.
Suggest me wat else I can do?
Regards, Shariff
On Thu, Jun 25, 2009 at 4:11 PM, Mark Brown < broonie@opensource.wolfsonmicro.com> wrote:
On Thu, Jun 25, 2009 at 03:17:54PM +0530, shariff wrote:
Iam working on OMAP3 based custom board. On our board, GSMdigital
audio path is connected to McBSP3 and TWL4030 digital audio path is connected to McBSP2.
In this scenario your GSM modem is essentially functioning as a CODEC within ASoC. The simplest thing to do is set up a dummy DAI in your machine driver for the GSM modem, register that at startup and then set up a dai_link for that as normal. You can then address the two streams individually as devices on the card.
The OpenMoko is doing something similar with its bluetooth chipset, though that is connected to a second DAI on the CODEC rather than the CPU.