On Fri, Mar 31, 2017 at 10:49:30AM +0200, Takashi Iwai wrote:
> Apply the same methods to obtain the current stream position as ASoC
> Intel SKL driver uses. It reads the position from DPIB for a playback
> stream while it still reads from the position buffer for a capture
> stream. For a capture stream, some ugly workaround is needed to
> settle down the inconsistent position.
>
> Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
> ---
> sound/pci/hda/hda_intel.c | 36 ++++++++++++++++++++++++++++++++++--
> 1 file changed, 34 insertions(+), 2 deletions(-)
>
> diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
> index a48330f4a1a9..64db6698214c 100644
> --- a/sound/pci/hda/hda_intel.c
> +++ b/sound/pci/hda/hda_intel.c
> @@ -77,6 +77,7 @@ enum {
> POS_FIX_POSBUF,
> POS_FIX_VIACOMBO,
> POS_FIX_COMBO,
> + POS_FIX_SKL,
> };
>
> /* Defines for ATI HD Audio support in SB450 south bridge */
> @@ -148,7 +149,7 @@ module_param_array(model, charp, NULL, 0444);
> MODULE_PARM_DESC(model, "Use the given board model.");
> module_param_array(position_fix, int, NULL, 0444);
> MODULE_PARM_DESC(position_fix, "DMA pointer read method."
> - "(-1 = system default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO).");
> + "(-1 = system default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO, 5 = SKL+).");
do we have people use this module param, or is it find what works for
them...
--
~Vinod
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