On Tue, 01 Dec 2015 18:47:02 +0100,
Subhransu S. Prusty wrote:
>
> +static int eld_limit_formats(struct snd_pcm_runtime *runtime, void *eld)
> +{
> + u64 formats = SNDRV_PCM_FMTBIT_S16_LE;
> + int i;
> + const u8 *sad, *eld_buf = eld;
> +
> + sad = drm_eld_sad(eld_buf);
> + if (!sad)
> + goto format_constraint;
> +
> + for (i = drm_eld_sad_count(eld_buf); i > 0; i--, sad += 3) {
> + if (sad_format(sad) == 1) { /* AUDIO_CODING_TYPE_LPCM */
> +
> + /* 20 bit */
> + if (sad_sample_bits_lpcm(sad) & 0x2)
> + formats |= SNDRV_PCM_FMTBIT_S32_LE;
> +
> + /* 24 bit */
> + if (sad_sample_bits_lpcm(sad) & 0x4)
> + formats |= SNDRV_PCM_FMTBIT_S24_LE;
Does it work correctly with HD-audio...?
Takashi
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