diff options
| author | Ricard Wanderlof <ricard.wanderlof@axis.com> | 2015-10-19 08:52:50 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2015-10-19 12:38:07 +0200 |
| commit | 4c4e4391b833e6297e0a6bc43db023a8c55d6835 (patch) | |
| tree | 64979aa6112318ec77a1afa8e4ae5b2d999e70e6 /sound/usb | |
| parent | ALSA: USB-audio: Break out copying to urb from prepare_playback_urb() (diff) | |
| download | linux-4c4e4391b833e6297e0a6bc43db023a8c55d6835.tar.xz linux-4c4e4391b833e6297e0a6bc43db023a8c55d6835.zip | |
ALSA: USB-audio: Also move out hwptr_done wrap from prepare_playback_urb()
Refactoring in preparation for adding Zoom R16/24 quirk.
No functional change.
Signed-off-by: Ricard Wanderlof <ricardw@axis.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb')
| -rw-r--r-- | sound/usb/pcm.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index 4292bad9f320..ee8dd9efb3ef 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -1383,6 +1383,8 @@ static inline void fill_playback_urb_dsd_dop(struct snd_usb_substream *subs, subs->hwptr_done++; } } + if (subs->hwptr_done >= runtime->buffer_size * stride) + subs->hwptr_done -= runtime->buffer_size * stride; } static void copy_to_urb(struct snd_usb_substream *subs, @@ -1403,6 +1405,8 @@ static void copy_to_urb(struct snd_usb_substream *subs, runtime->dma_area + subs->hwptr_done, bytes); } subs->hwptr_done += bytes; + if (subs->hwptr_done >= runtime->buffer_size * stride) + subs->hwptr_done -= runtime->buffer_size * stride; } static void prepare_playback_urb(struct snd_usb_substream *subs, @@ -1480,14 +1484,13 @@ static void prepare_playback_urb(struct snd_usb_substream *subs, } subs->hwptr_done += bytes; + if (subs->hwptr_done >= runtime->buffer_size * stride) + subs->hwptr_done -= runtime->buffer_size * stride; } else { /* usual PCM */ copy_to_urb(subs, urb, stride, bytes); } - if (subs->hwptr_done >= runtime->buffer_size * stride) - subs->hwptr_done -= runtime->buffer_size * stride; - /* update delay with exact number of samples queued */ runtime->delay = subs->last_delay; runtime->delay += frames; |