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authorTakashi Sakamoto <o-takashi@sakamocchi.jp>2017-04-14 16:46:30 +0900
committerTakashi Iwai <tiwai@suse.de>2017-04-14 14:50:38 +0200
commit3e7dc65ca001a6e40e78b912c6146ec013a3b49a (patch)
tree7e01017bd08a870b7f7afaa25d0e3b50bed8d39f /sound/firewire/tascam
parent98a00d3602a1c50a397893c5de26dbbe7d77804a (diff)
downloadblackbird-op-linux-3e7dc65ca001a6e40e78b912c6146ec013a3b49a.tar.gz
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ALSA: firewire-tascam: initialize parameters at open of rawmidi character devices
In current design of ALSA driver for TASCAM FireWire series, initialization of members in asymc midi port structure is done at device probing. Some of the members should be initialized every time to use rawmidi devices because they're changed in sequence of transmission for MIDI messages. This commit adds a new function to initialize them. Invariant parameters during object lifetime are kept as is. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/tascam')
-rw-r--r--sound/firewire/tascam/tascam-midi.c2
-rw-r--r--sound/firewire/tascam/tascam-transaction.c16
-rw-r--r--sound/firewire/tascam/tascam.h3
3 files changed, 7 insertions, 14 deletions
diff --git a/sound/firewire/tascam/tascam-midi.c b/sound/firewire/tascam/tascam-midi.c
index df4f95d65925..901df81129bb 100644
--- a/sound/firewire/tascam/tascam-midi.c
+++ b/sound/firewire/tascam/tascam-midi.c
@@ -18,6 +18,8 @@ static int midi_playback_open(struct snd_rawmidi_substream *substream)
{
struct snd_tscm *tscm = substream->rmidi->private_data;
+ snd_fw_async_midi_port_init(&tscm->out_ports[substream->number]);
+
/* Initialize internal status. */
tscm->running_status[substream->number] = 0;
tscm->on_sysex[substream->number] = 0;
diff --git a/sound/firewire/tascam/tascam-transaction.c b/sound/firewire/tascam/tascam-transaction.c
index 248afe663387..a248a4ae0353 100644
--- a/sound/firewire/tascam/tascam-transaction.c
+++ b/sound/firewire/tascam/tascam-transaction.c
@@ -236,17 +236,10 @@ static void midi_port_work(struct work_struct *work)
port);
}
-int snd_fw_async_midi_port_init(struct snd_fw_async_midi_port *port,
- struct fw_unit *unit)
+void snd_fw_async_midi_port_init(struct snd_fw_async_midi_port *port)
{
- port->parent = fw_parent_device(unit);
port->idling = true;
- port->next_ktime = 0;
port->error = false;
-
- INIT_WORK(&port->work, midi_port_work);
-
- return 0;
}
static void handle_midi_tx(struct fw_card *card, struct fw_request *request,
@@ -324,10 +317,9 @@ int snd_tscm_transaction_register(struct snd_tscm *tscm)
goto error;
for (i = 0; i < TSCM_MIDI_OUT_PORT_MAX; i++) {
- err = snd_fw_async_midi_port_init(
- &tscm->out_ports[i], tscm->unit);
- if (err < 0)
- goto error;
+ tscm->out_ports[i].parent = fw_parent_device(tscm->unit);
+ tscm->out_ports[i].next_ktime = 0;
+ INIT_WORK(&tscm->out_ports[i].work, midi_port_work);
}
return err;
diff --git a/sound/firewire/tascam/tascam.h b/sound/firewire/tascam/tascam.h
index fdf352bc303f..37ec2016d033 100644
--- a/sound/firewire/tascam/tascam.h
+++ b/sound/firewire/tascam/tascam.h
@@ -146,8 +146,7 @@ void snd_tscm_stream_lock_changed(struct snd_tscm *tscm);
int snd_tscm_stream_lock_try(struct snd_tscm *tscm);
void snd_tscm_stream_lock_release(struct snd_tscm *tscm);
-int snd_fw_async_midi_port_init(struct snd_fw_async_midi_port *port,
- struct fw_unit *unit);
+void snd_fw_async_midi_port_init(struct snd_fw_async_midi_port *port);
static inline void
snd_fw_async_midi_port_run(struct snd_fw_async_midi_port *port,
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