On Mon, 2008-09-08 at 15:02 +0530, umeshyv wrote:

Hi Sir, Thanks for your reply.I downloaded asoc patch for au1x but some files are missing like board setup files and exm32.h,exm1200.h.

au1x is in mainline now. There is probably no need for a patch. Please use an up to date kernel.

And where did you define the frequency controller details.Can I get the complete patch of au1x.I dont have a exact patch recently I used another patch there psc-i2s.c is modified a bit little.I am working on Au1200 to it tsc2301 is interfaced and Au1200 acts as master and MCLK is generated using Au1200 frequency controller,my question is where I am supposed define it.

You will need to write a small machine driver to define all your board/machine specific details. There are quite a few examples under sound/soc/

One more query is that for example consider the following code,

SOC_ENUM_SINGLE(CS4251X_VOLTRANSCTL, 4, 4,cs_vol_transition)

SOC_DOUBLE_R("Channel 4 Playback Volume", CS4251X_L4VOL, CS4251X_R4VOL, 0, 255, 1).

It tries to control volume transition and secondly volume adjustment .Generally register access to codec is done using SPI or I2C .So special functions like cs4251x_write(codec,<reg>,<value>) been developed for register access.When using SOC_DOUBLE_R or SOC_SINGLE etc how it access special functions to write to those specific codec registers can get explanation.

They ultimately call either i2C_write or spi_write. Please read the documentation in Documentation/sound/alsa/soc/

Can you provide me Asoc driver for DbAu1200 board.And following is the way i compiled libs and utils and I use buildroot to compile the libs and utils

Libs compilation

$PATH to buildroot $./configure --host=mipsel-linux --prefix=/home/audio --enable-shared=no --enable-static=yes $make $make install

Utils Compilation

$export ALSA_CFLAGS=-I/home/audio/include $export ALSA_LIBS="-L/home/audio/lib -lasound -lm -ldl -lpthread" $./configure --host=mipsel-linux --prefix=/home/audio --with-alsa-prefix=/home/audio/lib --with-alsa-inc-prefix=/home/audio/include $make $make install

All my installed libs and utils goes to /home/audio .Is there anything missing in configurtion and after compilation I copy /bin,/sbin,/lib to rootfs and then /share to /usr/share.I am going wrong anywhere.Waiting for your valuable reply.

This looks like it may be either a buildroot problem or you are missing some other buildroot alsa packages containing the conf files.

Liam