[alsa-devel] [PATCH] ASoC: Added PCM short and long frame sync formats

[Omair Mohammed Abdullah]

On Tuesday 27 March 2012 09:02 AM, Omair Mohammed Abdullah wrote:
> The PCM short frame sync sends a short (1 clock length) sync signal before the
> MSB of data. The PCM long frame sync sends a 1 word length sync signal along
> with the data.
>
> Signed-off-by: Omair Mohammed Abdullah<omair.m.abdullah at linux.intel.com>
> ---
>   include/sound/soc-dai.h |    2 ++
>   1 files changed, 2 insertions(+), 0 deletions(-)
>
> diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
> index c429f24..dc94b25 100644
> --- a/include/sound/soc-dai.h
> +++ b/include/sound/soc-dai.h
> @@ -32,6 +32,8 @@ struct snd_soc_dapm_widget;
>   #define SND_SOC_DAIFMT_DSP_B		5 /* L data MSB during FRM LRC */
>   #define SND_SOC_DAIFMT_AC97		6 /* AC97 */
>   #define SND_SOC_DAIFMT_PDM		7 /* Pulse density modulation */
> +#define SND_SOC_DAIFMT_SHORT_SYNC	8 /* FRM for 1 clock before MSB */
> +#define SND_SOC_DAIFMT_LONG_SYNC	9 /* FRM for 1 word starting with MSB */
>
>   /* left and right justified also known as MSB and LSB respectively */
>   #define SND_SOC_DAIFMT_MSB		SND_SOC_DAIFMT_LEFT_J

What I am looking for is something like this. But 
SND_SOC_DAIFMT_SHORT_SYNC might be the same as SND_SOC_DAIFMT_DSP_A.