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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>
This commit is contained in:
Ricard Wanderlof 2015-10-19 08:52:50 +02:00 committed by Takashi Iwai
parent 07a40c2fc6
commit 4c4e4391b8
1 changed files with 6 additions and 3 deletions
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9
sound/usb/pcm.c
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@ -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;