[alsa-devel] alsa driver playback using aplay fails

[Appalayagari Sreedhar]

Hi,

Can anyone give me the alsa aplay source code.

-Sreedhar.

On 9/7/11, Appalayagari Sreedhar <sreecha01 at gmail.com> wrote:
> Hi,
>
> I have integrated the cx2070x codec driver which is in ALSA model.
> I am trying to test the codec driver using the aplay command.
>
> in my code CPU is the master and codec is the slave.
>
> The Audio format which i used is :
>
> #define AUDIO_FORMAT (SND_SOC_DAIFMT_I2S | \
>                 SND_SOC_DAIFMT_CBS_CFS | SND_SOC_DAIFMT_IB_NF)
>
> when i run the aplay command.
>
> aplay Front_Center.wav
>
> the codec driver is opening and shutting down.
> please find the log. the CPU is TI processsor.
>
>  davinci_i2s_startup
>  davinci_i2s_startup
>  snd_soc_set_runtime_hwparams
> asoc: cx2070x <-> davinci-mcbsp info:
> asoc: rate mask 0x6fe
> asoc: min ch 2 max ch 2
> asoc: min rate 8000 max rate 96000
> Playing WAVE 'Front_Center.wav' : Signed 16 bit Little Endian, Rate
> 48000 Hz, Mono
>  soc_pcm_hw_params
>  davinci_i2s_set_dai_fmt
>  davinci_i2s_set_dai_fmt
>  cx2070x_hw_params
> 4294941454: cx2070x_hw_params() called
> format:2 speed:48000
>  davinci_i2s_hw_params
>  soc_pcm_prepare
>  davinci_i2s_prepare
>  davinci_mcbsp_stop
>  davinci_mcbsp_stop
>  davinci_i2s_prepare
>  soc_pcm_trigger
>  davinci_i2s_trigger
>  davinci_i2s_trigger
>  soc_pcm_trigger
>  davinci_i2s_trigger
>  davinci_mcbsp_stop
>  davinci_mcbsp_stop
>  davinci_i2s_trigger
>  soc_pcm_hw_free
>  soc_pcm_hw_free
>  soc_codec_close
>  davinci_i2s_shutdown
>  davinci_mcbsp_stop
>  davinci_mcbsp_stop
>  davinci_i2s_shutdown
> # pop wq checking: Playback status: inactive waiting: yes
>
> Could you please tell me where i am doing wrong?
>
> Thank you,
> Sreedhar.
>