[alsa-devel] [PATCH] ALSA: asihpi - fix pcm dma pointer tracking

[Takashi Iwai]

At Thu, 22 Dec 2011 11:54:02 +1300,
linux at audioscience.com wrote:
> 
> From: Eliot Blennerhassett <eblennerhassett at audioscience.com>
> 
> Elapsed counter should only count data committed to snd_pcm_period_elapsed,
> rather than all data available
> 
> Signed-off-by: Eliot Blennerhassett <eblennerhassett at audioscience.com>
> ---
>  sound/pci/asihpi/asihpi.c |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/sound/pci/asihpi/asihpi.c b/sound/pci/asihpi/asihpi.c
> index e9de799..322ddfe 100644
> --- a/sound/pci/asihpi/asihpi.c
> +++ b/sound/pci/asihpi/asihpi.c
> @@ -888,8 +888,8 @@ static void snd_card_asihpi_timer_function(unsigned long data)
>  							pd, xfer2));
>  				}
>  			}
> -			ds->pcm_buf_host_rw_ofs = ds->pcm_buf_host_rw_ofs + xfercount;
> -			ds->pcm_buf_elapsed_dma_ofs = pcm_buf_dma_ofs;
> +			ds->pcm_buf_host_rw_ofs = += xfercount;

A typo here.  I applied the patch with the fix now.


thanks,

Takashi


> +			ds->pcm_buf_elapsed_dma_ofs += xfercount;
>  			snd_pcm_period_elapsed(s);
>  		}
>  	}
> -- 
> 1.7.0.4
>