ALSA: fireworks/firewire-lib: Add a quirk of data blocks for MIDI in out-stream
Fireworks has a quirk to ignore MIDI messages in data blocks more than 8.
This commit adds a flag for this quirk and codes to skip 8 or more data
blocks to transfer MIDI messages.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index 5e13b3f..28ee3d8 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -78,6 +78,8 @@
s->callbacked = false;
s->sync_slave = NULL;
+ s->rx_blocks_for_midi = UINT_MAX;
+
return 0;
}
EXPORT_SYMBOL(amdtp_stream_init);
@@ -472,7 +474,8 @@
b = (u8 *)&buffer[s->midi_position];
port = (s->data_block_counter + f) % 8;
- if ((s->midi[port] == NULL) ||
+ if ((f >= s->rx_blocks_for_midi) ||
+ (s->midi[port] == NULL) ||
(snd_rawmidi_transmit(s->midi[port], b + 1, 1) <= 0))
b[0] = 0x80;
else