ALSA: seq: Add UMP group filter

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Add a new filter bitmap for UMP groups for reducing the unnecessary
read/write when the client is connected to UMP EP seq port.

The new group_filter field contains the bitmap for the groups, i.e.
when the bit is set, the corresponding group is filtered out and
the messages to that group won't be delivered.

The filter bitmap consists of each bit of 1-based UMP Group number.
The bit 0 is reserved for the future use.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-37-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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This commit is contained in:

Takashi Iwai 2023-05-23 09:53:57 +02:00

parent e85b926056

commit d2b7060777

4 changed files with 18 additions and 1 deletions

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3

include/uapi/sound/asequencer.h

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2

sound/core/seq/seq_clientmgr.c

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1

sound/core/seq/seq_clientmgr.h

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13

sound/core/seq/seq_ump_convert.c

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