From 4c4e4391b833e6297e0a6bc43db023a8c55d6835 Mon Sep 17 00:00:00 2001 From: Ricard Wanderlof Date: Mon, 19 Oct 2015 08:52:50 +0200 Subject: [PATCH] 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 Signed-off-by: Takashi Iwai --- sound/usb/pcm.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index 4292bad..ee8dd9e 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; -- 2.7.4