mirror of
https://github.com/torvalds/linux.git
synced 2024-11-22 20:22:09 +00:00
921282360b
Some identifiers are referred just by one functions. In this case, they can be put into the function definition. This brings two merits; readers can easily follow codes related to the identifiers, developers are free from name conflict. This commit moves such identifiers to each function definition. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
134 lines
3.4 KiB
C
134 lines
3.4 KiB
C
/*
|
|
* tascam-midi.c - a part of driver for TASCAM FireWire series
|
|
*
|
|
* Copyright (c) 2015 Takashi Sakamoto
|
|
*
|
|
* Licensed under the terms of the GNU General Public License, version 2.
|
|
*/
|
|
|
|
#include "tascam.h"
|
|
|
|
static int midi_capture_open(struct snd_rawmidi_substream *substream)
|
|
{
|
|
/* Do nothing. */
|
|
return 0;
|
|
}
|
|
|
|
static int midi_playback_open(struct snd_rawmidi_substream *substream)
|
|
{
|
|
struct snd_tscm *tscm = substream->rmidi->private_data;
|
|
|
|
/* Initialize internal status. */
|
|
tscm->running_status[substream->number] = 0;
|
|
tscm->on_sysex[substream->number] = 0;
|
|
return 0;
|
|
}
|
|
|
|
static int midi_capture_close(struct snd_rawmidi_substream *substream)
|
|
{
|
|
/* Do nothing. */
|
|
return 0;
|
|
}
|
|
|
|
static int midi_playback_close(struct snd_rawmidi_substream *substream)
|
|
{
|
|
struct snd_tscm *tscm = substream->rmidi->private_data;
|
|
|
|
snd_fw_async_midi_port_finish(&tscm->out_ports[substream->number]);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up)
|
|
{
|
|
struct snd_tscm *tscm = substrm->rmidi->private_data;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&tscm->lock, flags);
|
|
|
|
if (up)
|
|
tscm->tx_midi_substreams[substrm->number] = substrm;
|
|
else
|
|
tscm->tx_midi_substreams[substrm->number] = NULL;
|
|
|
|
spin_unlock_irqrestore(&tscm->lock, flags);
|
|
}
|
|
|
|
static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up)
|
|
{
|
|
struct snd_tscm *tscm = substrm->rmidi->private_data;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&tscm->lock, flags);
|
|
|
|
if (up)
|
|
snd_fw_async_midi_port_run(&tscm->out_ports[substrm->number],
|
|
substrm);
|
|
|
|
spin_unlock_irqrestore(&tscm->lock, flags);
|
|
}
|
|
|
|
int snd_tscm_create_midi_devices(struct snd_tscm *tscm)
|
|
{
|
|
static struct snd_rawmidi_ops capture_ops = {
|
|
.open = midi_capture_open,
|
|
.close = midi_capture_close,
|
|
.trigger = midi_capture_trigger,
|
|
};
|
|
static struct snd_rawmidi_ops playback_ops = {
|
|
.open = midi_playback_open,
|
|
.close = midi_playback_close,
|
|
.trigger = midi_playback_trigger,
|
|
};
|
|
struct snd_rawmidi *rmidi;
|
|
struct snd_rawmidi_str *stream;
|
|
struct snd_rawmidi_substream *subs;
|
|
int err;
|
|
|
|
err = snd_rawmidi_new(tscm->card, tscm->card->driver, 0,
|
|
tscm->spec->midi_playback_ports,
|
|
tscm->spec->midi_capture_ports,
|
|
&rmidi);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
snprintf(rmidi->name, sizeof(rmidi->name),
|
|
"%s MIDI", tscm->card->shortname);
|
|
rmidi->private_data = tscm;
|
|
|
|
rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT;
|
|
snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT,
|
|
&capture_ops);
|
|
stream = &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT];
|
|
|
|
/* Set port names for MIDI input. */
|
|
list_for_each_entry(subs, &stream->substreams, list) {
|
|
/* TODO: support virtual MIDI ports. */
|
|
if (subs->number < tscm->spec->midi_capture_ports) {
|
|
/* Hardware MIDI ports. */
|
|
snprintf(subs->name, sizeof(subs->name),
|
|
"%s MIDI %d",
|
|
tscm->card->shortname, subs->number + 1);
|
|
}
|
|
}
|
|
|
|
rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT;
|
|
snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT,
|
|
&playback_ops);
|
|
stream = &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT];
|
|
|
|
/* Set port names for MIDI ourput. */
|
|
list_for_each_entry(subs, &stream->substreams, list) {
|
|
if (subs->number < tscm->spec->midi_playback_ports) {
|
|
/* Hardware MIDI ports only. */
|
|
snprintf(subs->name, sizeof(subs->name),
|
|
"%s MIDI %d",
|
|
tscm->card->shortname, subs->number + 1);
|
|
}
|
|
}
|
|
|
|
rmidi->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX;
|
|
|
|
return 0;
|
|
}
|