ALSA: firewire-lib: tune the maximum available size of PCM period

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Linux driver for 1394 OHCI controller voluntarily flushes isoc context
when total size of accumulated context header reached PAGE_SIZE. This
kicks tasklet for the isoc context. This is inconvenient to process
runtime of PCM substream.

This commit adds a restriction of the maximum size of PCM period to
avoid this behaviour.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20191017155424.885-12-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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Takashi Sakamoto 2019-10-18 00:54:23 +09:00 • committed by Takashi Iwai

parent e229853d50

commit 99921ec67d

1 changed files with 18 additions and 11 deletions

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sound/firewire/amdtp-stream.c

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