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/*
* digi00x-midi.h - a part of driver for Digidesign Digi 002/003 family
*
* Copyright (c) 2014-2015 Takashi Sakamoto
*
* Licensed under the terms of the GNU General Public License, version 2.
*/
#include "digi00x.h"
static int midi_phys_open(struct snd_rawmidi_substream *substream)
{
struct snd_dg00x *dg00x = substream->rmidi->private_data;
int err;
err = snd_dg00x_stream_lock_try(dg00x);
if (err < 0)
return err;
mutex_lock(&dg00x->mutex);
dg00x->substreams_counter++;
err = snd_dg00x_stream_start_duplex(dg00x, 0);
mutex_unlock(&dg00x->mutex);
if (err < 0)
snd_dg00x_stream_lock_release(dg00x);
return err;
}
static int midi_phys_close(struct snd_rawmidi_substream *substream)
{
struct snd_dg00x *dg00x = substream->rmidi->private_data;
mutex_lock(&dg00x->mutex);
dg00x->substreams_counter--;
snd_dg00x_stream_stop_duplex(dg00x);
mutex_unlock(&dg00x->mutex);
snd_dg00x_stream_lock_release(dg00x);
return 0;
}
static void midi_phys_capture_trigger(struct snd_rawmidi_substream *substream,
int up)
{
struct snd_dg00x *dg00x = substream->rmidi->private_data;
unsigned long flags;
spin_lock_irqsave(&dg00x->lock, flags);
if (up)
amdtp_dot_midi_trigger(&dg00x->tx_stream, substream->number,
substream);
else
amdtp_dot_midi_trigger(&dg00x->tx_stream, substream->number,
NULL);
spin_unlock_irqrestore(&dg00x->lock, flags);
}
static void midi_phys_playback_trigger(struct snd_rawmidi_substream *substream,
int up)
{
struct snd_dg00x *dg00x = substream->rmidi->private_data;
unsigned long flags;
spin_lock_irqsave(&dg00x->lock, flags);
if (up)
amdtp_dot_midi_trigger(&dg00x->rx_stream, substream->number,
substream);
else
amdtp_dot_midi_trigger(&dg00x->rx_stream, substream->number,
NULL);
spin_unlock_irqrestore(&dg00x->lock, flags);
}
static struct snd_rawmidi_ops midi_phys_capture_ops = {
.open = midi_phys_open,
.close = midi_phys_close,
.trigger = midi_phys_capture_trigger,
};
static struct snd_rawmidi_ops midi_phys_playback_ops = {
.open = midi_phys_open,
.close = midi_phys_close,
.trigger = midi_phys_playback_trigger,
};
static int midi_ctl_open(struct snd_rawmidi_substream *substream)
{
/* Do nothing. */
return 0;
}
static int midi_ctl_capture_close(struct snd_rawmidi_substream *substream)
{
/* Do nothing. */
return 0;
}
static int midi_ctl_playback_close(struct snd_rawmidi_substream *substream)
{
struct snd_dg00x *dg00x = substream->rmidi->private_data;
snd_fw_async_midi_port_finish(&dg00x->out_control);
return 0;
}
static void midi_ctl_capture_trigger(struct snd_rawmidi_substream *substream,
int up)
{
struct snd_dg00x *dg00x = substream->rmidi->private_data;
unsigned long flags;
spin_lock_irqsave(&dg00x->lock, flags);
if (up)
dg00x->in_control = substream;
else
dg00x->in_control = NULL;
spin_unlock_irqrestore(&dg00x->lock, flags);
}
static void midi_ctl_playback_trigger(struct snd_rawmidi_substream *substream,
int up)
{
struct snd_dg00x *dg00x = substream->rmidi->private_data;
unsigned long flags;
spin_lock_irqsave(&dg00x->lock, flags);
if (up)
snd_fw_async_midi_port_run(&dg00x->out_control, substream);
spin_unlock_irqrestore(&dg00x->lock, flags);
}
static struct snd_rawmidi_ops midi_ctl_capture_ops = {
.open = midi_ctl_open,
.close = midi_ctl_capture_close,
.trigger = midi_ctl_capture_trigger,
};
static struct snd_rawmidi_ops midi_ctl_playback_ops = {
.open = midi_ctl_open,
.close = midi_ctl_playback_close,
.trigger = midi_ctl_playback_trigger,
};
static void set_midi_substream_names(struct snd_dg00x *dg00x,
struct snd_rawmidi_str *str,
bool is_ctl)
{
struct snd_rawmidi_substream *subs;
list_for_each_entry(subs, &str->substreams, list) {
if (!is_ctl)
snprintf(subs->name, sizeof(subs->name),
"%s MIDI %d",
dg00x->card->shortname, subs->number + 1);
else
/* This port is for asynchronous transaction. */
snprintf(subs->name, sizeof(subs->name),
"%s control",
dg00x->card->shortname);
}
}
int snd_dg00x_create_midi_devices(struct snd_dg00x *dg00x)
{
struct snd_rawmidi *rmidi[2];
struct snd_rawmidi_str *str;
unsigned int i;
int err;
/* Add physical midi ports. */
err = snd_rawmidi_new(dg00x->card, dg00x->card->driver, 0,
DOT_MIDI_OUT_PORTS, DOT_MIDI_IN_PORTS, &rmidi[0]);
if (err < 0)
return err;
snprintf(rmidi[0]->name, sizeof(rmidi[0]->name),
"%s MIDI", dg00x->card->shortname);
snd_rawmidi_set_ops(rmidi[0], SNDRV_RAWMIDI_STREAM_INPUT,
&midi_phys_capture_ops);
snd_rawmidi_set_ops(rmidi[0], SNDRV_RAWMIDI_STREAM_OUTPUT,
&midi_phys_playback_ops);
/* Add a pair of control midi ports. */
err = snd_rawmidi_new(dg00x->card, dg00x->card->driver, 1,
1, 1, &rmidi[1]);
if (err < 0)
return err;
snprintf(rmidi[1]->name, sizeof(rmidi[1]->name),
"%s control", dg00x->card->shortname);
snd_rawmidi_set_ops(rmidi[1], SNDRV_RAWMIDI_STREAM_INPUT,
&midi_ctl_capture_ops);
snd_rawmidi_set_ops(rmidi[1], SNDRV_RAWMIDI_STREAM_OUTPUT,
&midi_ctl_playback_ops);
for (i = 0; i < ARRAY_SIZE(rmidi); i++) {
rmidi[i]->private_data = dg00x;
rmidi[i]->info_flags |= SNDRV_RAWMIDI_INFO_INPUT;
str = &rmidi[i]->streams[SNDRV_RAWMIDI_STREAM_INPUT];
set_midi_substream_names(dg00x, str, i);
rmidi[i]->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT;
str = &rmidi[i]->streams[SNDRV_RAWMIDI_STREAM_OUTPUT];
set_midi_substream_names(dg00x, str, i);
rmidi[i]->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX;
}
return 0;
}
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