2015-10-11 06:30:16 +03:00
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/*
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* digi00x-midi.h - a part of driver for Digidesign Digi 002/003 family
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*
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* Copyright (c) 2014-2015 Takashi Sakamoto
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*
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* Licensed under the terms of the GNU General Public License, version 2.
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*/
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#include "digi00x.h"
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2015-10-30 20:43:14 +03:00
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static int midi_phys_open(struct snd_rawmidi_substream *substream)
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2015-10-11 06:30:16 +03:00
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{
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struct snd_dg00x *dg00x = substream->rmidi->private_data;
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int err;
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err = snd_dg00x_stream_lock_try(dg00x);
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if (err < 0)
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return err;
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mutex_lock(&dg00x->mutex);
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dg00x->substreams_counter++;
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err = snd_dg00x_stream_start_duplex(dg00x, 0);
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mutex_unlock(&dg00x->mutex);
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if (err < 0)
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snd_dg00x_stream_lock_release(dg00x);
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return err;
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}
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2015-10-30 20:43:14 +03:00
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static int midi_phys_close(struct snd_rawmidi_substream *substream)
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2015-10-11 06:30:16 +03:00
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{
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struct snd_dg00x *dg00x = substream->rmidi->private_data;
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mutex_lock(&dg00x->mutex);
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dg00x->substreams_counter--;
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snd_dg00x_stream_stop_duplex(dg00x);
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mutex_unlock(&dg00x->mutex);
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snd_dg00x_stream_lock_release(dg00x);
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return 0;
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}
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2015-10-30 20:43:14 +03:00
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static void midi_phys_capture_trigger(struct snd_rawmidi_substream *substream,
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int up)
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2015-10-11 06:30:16 +03:00
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{
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2015-10-30 20:43:14 +03:00
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struct snd_dg00x *dg00x = substream->rmidi->private_data;
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2015-10-11 06:30:16 +03:00
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unsigned long flags;
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spin_lock_irqsave(&dg00x->lock, flags);
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2015-10-30 20:43:16 +03:00
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if (up)
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amdtp_dot_midi_trigger(&dg00x->tx_stream, substream->number,
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substream);
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else
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amdtp_dot_midi_trigger(&dg00x->tx_stream, substream->number,
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NULL);
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2015-10-11 06:30:16 +03:00
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spin_unlock_irqrestore(&dg00x->lock, flags);
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}
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2015-10-30 20:43:14 +03:00
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static void midi_phys_playback_trigger(struct snd_rawmidi_substream *substream,
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int up)
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2015-10-11 06:30:16 +03:00
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{
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2015-10-30 20:43:14 +03:00
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struct snd_dg00x *dg00x = substream->rmidi->private_data;
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2015-10-11 06:30:16 +03:00
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unsigned long flags;
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spin_lock_irqsave(&dg00x->lock, flags);
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2015-10-30 20:43:16 +03:00
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if (up)
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amdtp_dot_midi_trigger(&dg00x->rx_stream, substream->number,
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substream);
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else
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amdtp_dot_midi_trigger(&dg00x->rx_stream, substream->number,
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NULL);
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2015-10-11 06:30:16 +03:00
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spin_unlock_irqrestore(&dg00x->lock, flags);
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}
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2015-10-30 20:43:14 +03:00
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static struct snd_rawmidi_ops midi_phys_capture_ops = {
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.open = midi_phys_open,
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.close = midi_phys_close,
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.trigger = midi_phys_capture_trigger,
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2015-10-11 06:30:16 +03:00
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};
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2015-10-30 20:43:14 +03:00
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static struct snd_rawmidi_ops midi_phys_playback_ops = {
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.open = midi_phys_open,
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.close = midi_phys_close,
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.trigger = midi_phys_playback_trigger,
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2015-10-11 06:30:16 +03:00
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};
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2015-10-30 20:43:15 +03:00
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static int midi_ctl_open(struct snd_rawmidi_substream *substream)
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{
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/* Do nothing. */
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return 0;
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}
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static int midi_ctl_capture_close(struct snd_rawmidi_substream *substream)
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{
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/* Do nothing. */
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return 0;
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}
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static int midi_ctl_playback_close(struct snd_rawmidi_substream *substream)
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{
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struct snd_dg00x *dg00x = substream->rmidi->private_data;
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snd_fw_async_midi_port_finish(&dg00x->out_control);
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return 0;
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}
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static void midi_ctl_capture_trigger(struct snd_rawmidi_substream *substream,
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int up)
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{
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struct snd_dg00x *dg00x = substream->rmidi->private_data;
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unsigned long flags;
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spin_lock_irqsave(&dg00x->lock, flags);
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if (up)
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dg00x->in_control = substream;
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else
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dg00x->in_control = NULL;
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spin_unlock_irqrestore(&dg00x->lock, flags);
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}
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static void midi_ctl_playback_trigger(struct snd_rawmidi_substream *substream,
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int up)
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{
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struct snd_dg00x *dg00x = substream->rmidi->private_data;
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unsigned long flags;
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spin_lock_irqsave(&dg00x->lock, flags);
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if (up)
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snd_fw_async_midi_port_run(&dg00x->out_control, substream);
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spin_unlock_irqrestore(&dg00x->lock, flags);
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}
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static struct snd_rawmidi_ops midi_ctl_capture_ops = {
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.open = midi_ctl_open,
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.close = midi_ctl_capture_close,
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.trigger = midi_ctl_capture_trigger,
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};
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static struct snd_rawmidi_ops midi_ctl_playback_ops = {
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.open = midi_ctl_open,
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.close = midi_ctl_playback_close,
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.trigger = midi_ctl_playback_trigger,
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};
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2015-10-11 06:30:16 +03:00
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static void set_midi_substream_names(struct snd_dg00x *dg00x,
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2015-10-30 20:43:16 +03:00
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struct snd_rawmidi_str *str,
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bool is_ctl)
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2015-10-11 06:30:16 +03:00
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{
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struct snd_rawmidi_substream *subs;
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list_for_each_entry(subs, &str->substreams, list) {
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2015-10-30 20:43:16 +03:00
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if (!is_ctl)
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2015-10-11 06:30:19 +03:00
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snprintf(subs->name, sizeof(subs->name),
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"%s MIDI %d",
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2015-10-30 20:43:16 +03:00
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dg00x->card->shortname, subs->number + 1);
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2015-10-11 06:30:19 +03:00
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else
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/* This port is for asynchronous transaction. */
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snprintf(subs->name, sizeof(subs->name),
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"%s control",
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dg00x->card->shortname);
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2015-10-11 06:30:16 +03:00
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}
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}
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int snd_dg00x_create_midi_devices(struct snd_dg00x *dg00x)
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{
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2015-10-30 20:43:16 +03:00
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struct snd_rawmidi *rmidi[2];
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2015-10-11 06:30:16 +03:00
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struct snd_rawmidi_str *str;
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2015-10-30 20:43:16 +03:00
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unsigned int i;
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2015-10-11 06:30:16 +03:00
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int err;
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2015-10-30 20:43:16 +03:00
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/* Add physical midi ports. */
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2015-10-11 06:30:16 +03:00
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err = snd_rawmidi_new(dg00x->card, dg00x->card->driver, 0,
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2015-10-30 20:43:16 +03:00
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DOT_MIDI_OUT_PORTS, DOT_MIDI_IN_PORTS, &rmidi[0]);
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2015-10-11 06:30:16 +03:00
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if (err < 0)
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return err;
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2015-10-30 20:43:16 +03:00
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snprintf(rmidi[0]->name, sizeof(rmidi[0]->name),
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2015-10-11 06:30:16 +03:00
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"%s MIDI", dg00x->card->shortname);
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2015-10-30 20:43:16 +03:00
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snd_rawmidi_set_ops(rmidi[0], SNDRV_RAWMIDI_STREAM_INPUT,
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2015-10-30 20:43:14 +03:00
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&midi_phys_capture_ops);
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2015-10-30 20:43:16 +03:00
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snd_rawmidi_set_ops(rmidi[0], SNDRV_RAWMIDI_STREAM_OUTPUT,
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2015-10-30 20:43:14 +03:00
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&midi_phys_playback_ops);
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2015-10-11 06:30:16 +03:00
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2015-10-30 20:43:16 +03:00
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/* Add a pair of control midi ports. */
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err = snd_rawmidi_new(dg00x->card, dg00x->card->driver, 1,
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1, 1, &rmidi[1]);
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if (err < 0)
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return err;
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snprintf(rmidi[1]->name, sizeof(rmidi[1]->name),
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"%s control", dg00x->card->shortname);
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snd_rawmidi_set_ops(rmidi[1], SNDRV_RAWMIDI_STREAM_INPUT,
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&midi_ctl_capture_ops);
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snd_rawmidi_set_ops(rmidi[1], SNDRV_RAWMIDI_STREAM_OUTPUT,
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&midi_ctl_playback_ops);
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for (i = 0; i < ARRAY_SIZE(rmidi); i++) {
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rmidi[i]->private_data = dg00x;
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rmidi[i]->info_flags |= SNDRV_RAWMIDI_INFO_INPUT;
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str = &rmidi[i]->streams[SNDRV_RAWMIDI_STREAM_INPUT];
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set_midi_substream_names(dg00x, str, i);
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rmidi[i]->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT;
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str = &rmidi[i]->streams[SNDRV_RAWMIDI_STREAM_OUTPUT];
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set_midi_substream_names(dg00x, str, i);
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rmidi[i]->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX;
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}
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2015-10-11 06:30:16 +03:00
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return 0;
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}
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