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seq: Define new events for UMP EP/FB change notifications

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Two new sequencer event types are added for notifications of UMP info
changes: SND_SEQ_EVENT_UMP_EP_CHANGE (68) and
SND_SEQ_EVENT_UMP_BLOCK_CHANGE (69).

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2025-01-13 15:34:49 +01:00
parent cdd5a9fa10
commit 35d2efefa9
2 changed files with 13 additions and 0 deletions
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1
include/local.h
View file

@ -208,6 +208,7 @@
#define snd_seq_result sndrv_seq_result
#define snd_seq_queue_skew sndrv_seq_queue_skew
#define snd_seq_ev_queue_control sndrv_seq_ev_queue_control
#define snd_seq_ev_ump_notify sndrv_seq_ev_ump_notify
#define snd_seq_client_t sndrv_seq_client_t
#define snd_seq_client_type_t sndrv_seq_client_type_t

12
include/seq_event.h
View file

@ -135,6 +135,11 @@ enum snd_seq_event_type {
/** Ports disconnected; event data type = #snd_seq_connect_t */
SND_SEQ_EVENT_PORT_UNSUBSCRIBED,
/** UMP Endpoint info has changed; event data type = #snd_seq_ev_ump_notify_t */
SND_SEQ_EVENT_UMP_EP_CHANGE,
/** UMP Block info has changed; event data type = #snd_seq_ev_ump_notify_t */
SND_SEQ_EVENT_UMP_BLOCK_CHANGE,
/** user-defined event; event data type = any (fixed size) */
SND_SEQ_EVENT_USR0 = 90,
/** user-defined event; event data type = any (fixed size) */
@ -294,6 +299,12 @@ typedef struct snd_seq_ev_queue_control {
} param; /**< data value union */
} snd_seq_ev_queue_control_t;
/** UMP info change notify */
typedef struct snd_seq_ev_ump_notify {
unsigned char client; /**< Client number */
unsigned char block; /**< Block number (optional) */
} snd_seq_ev_ump_notify_t;
/** Sequencer event data */
typedef union snd_seq_event_data {
snd_seq_ev_note_t note; /**< note information */
@ -306,6 +317,7 @@ typedef union snd_seq_event_data {
snd_seq_addr_t addr; /**< address */
snd_seq_connect_t connect; /**< connect information */
snd_seq_result_t result; /**< operation result code */
snd_seq_ev_ump_notify_t ump_notify; /**< UMP info change notification */
} snd_seq_event_data_t;
/** Sequencer event */