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seq: Add snd_seq_{get|set}_ump_is_midi1() API functions

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Implement the API function calls corresponding to the new sequencer
port flag bit that has been added recently to the kernel.
A UMP MIDI 2.0 device allow to have an optional MIDI 1.0 port while
speaking in MIDI 2.0 protocol for other UMP Groups.  The new seq port
flag indicates that.

This is rather a minor difference, and since ALSA sequencer core
covers the all conversions, usually you don't have to worry about it
at all.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2024-08-07 15:46:31 +02:00
parent d969439813
commit ddc4c668ba
4 changed files with 35 additions and 0 deletions
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2
include/sound/uapi/asequencer.h
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@ -477,6 +477,8 @@ struct snd_seq_remove_events {
#define SNDRV_SEQ_PORT_FLG_TIMESTAMP (1<<1)
#define SNDRV_SEQ_PORT_FLG_TIME_REAL (1<<2)
#define SNDRV_SEQ_PORT_FLG_IS_MIDI1 (1<<3) /* Keep MIDI 1.0 protocol */
/* port direction */
#define SNDRV_SEQ_PORT_DIR_UNKNOWN 0
#define SNDRV_SEQ_PORT_DIR_INPUT 1