diff options
| author | Takashi Iwai <tiwai@suse.de> | 2023-06-12 10:10:52 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2023-06-12 18:22:33 +0200 |
| commit | 6a8b4800ae54e9ceb8d017bcfb61d04ff0da90f2 (patch) | |
| tree | 3c40c2c483e656616d8f93167b1384fc4a714411 /sound/core/seq | |
| parent | 174a6dfbc17ee9defed4daeeea6061ef34644f02 (diff) | |
ALSA: seq: ump: Notify UMP protocol change to sequencer
UMP v1.1 supports the protocol switch via a UMP Stream message. When
it's received, we need to take care of the midi_version field in the
corresponding sequencer client, too.
This patch introduces a new ops to notify the protocol change to
snd_seq_ump_ops for handling it.
Link: https://lore.kernel.org/r/20230612081054.17200-9-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core/seq')
| -rw-r--r-- | sound/core/seq/seq_ump_client.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/sound/core/seq/seq_ump_client.c b/sound/core/seq/seq_ump_client.c index 901a670dcb36..fe21c801af74 100644 --- a/sound/core/seq/seq_ump_client.c +++ b/sound/core/seq/seq_ump_client.c @@ -439,9 +439,19 @@ static int seq_ump_notify_fb_change(struct snd_ump_endpoint *ump, return 0; } +/* UMP protocol change notification; just update the midi_version field */ +static int seq_ump_switch_protocol(struct snd_ump_endpoint *ump) +{ + if (!ump->seq_client) + return -ENODEV; + setup_client_midi_version(ump->seq_client); + return 0; +} + static const struct snd_seq_ump_ops seq_ump_ops = { .input_receive = seq_ump_input_receive, .notify_fb_change = seq_ump_notify_fb_change, + .switch_protocol = seq_ump_switch_protocol, }; /* create a sequencer client and ports for the given UMP endpoint */ |