2014-12-08 23:10:48 +08:00
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/*
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* oxfw_midi.c - a part of driver for OXFW970/971 based devices
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*
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* Copyright (c) 2014 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 "oxfw.h"
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static int midi_capture_open(struct snd_rawmidi_substream *substream)
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{
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struct snd_oxfw *oxfw = substream->rmidi->private_data;
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int err;
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2014-12-08 23:10:49 +08:00
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err = snd_oxfw_stream_lock_try(oxfw);
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if (err < 0)
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return err;
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2014-12-08 23:10:48 +08:00
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mutex_lock(&oxfw->mutex);
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oxfw->capture_substreams++;
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err = snd_oxfw_stream_start_simplex(oxfw, &oxfw->tx_stream, 0, 0);
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mutex_unlock(&oxfw->mutex);
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2014-12-08 23:10:49 +08:00
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if (err < 0)
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snd_oxfw_stream_lock_release(oxfw);
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2014-12-08 23:10:48 +08:00
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return err;
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}
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static int midi_playback_open(struct snd_rawmidi_substream *substream)
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{
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struct snd_oxfw *oxfw = substream->rmidi->private_data;
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int err;
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2014-12-08 23:10:49 +08:00
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err = snd_oxfw_stream_lock_try(oxfw);
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if (err < 0)
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return err;
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2014-12-08 23:10:48 +08:00
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mutex_lock(&oxfw->mutex);
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oxfw->playback_substreams++;
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err = snd_oxfw_stream_start_simplex(oxfw, &oxfw->rx_stream, 0, 0);
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mutex_unlock(&oxfw->mutex);
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2014-12-08 23:10:49 +08:00
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if (err < 0)
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snd_oxfw_stream_lock_release(oxfw);
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2014-12-08 23:10:48 +08:00
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return err;
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}
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static int midi_capture_close(struct snd_rawmidi_substream *substream)
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{
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struct snd_oxfw *oxfw = substream->rmidi->private_data;
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mutex_lock(&oxfw->mutex);
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oxfw->capture_substreams--;
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snd_oxfw_stream_stop_simplex(oxfw, &oxfw->tx_stream);
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mutex_unlock(&oxfw->mutex);
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2014-12-08 23:10:49 +08:00
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snd_oxfw_stream_lock_release(oxfw);
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2014-12-08 23:10:48 +08:00
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return 0;
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}
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static int midi_playback_close(struct snd_rawmidi_substream *substream)
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{
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struct snd_oxfw *oxfw = substream->rmidi->private_data;
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mutex_lock(&oxfw->mutex);
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oxfw->playback_substreams--;
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snd_oxfw_stream_stop_simplex(oxfw, &oxfw->rx_stream);
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mutex_unlock(&oxfw->mutex);
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2014-12-08 23:10:49 +08:00
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snd_oxfw_stream_lock_release(oxfw);
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2014-12-08 23:10:48 +08:00
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return 0;
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}
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static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up)
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{
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struct snd_oxfw *oxfw = substrm->rmidi->private_data;
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unsigned long flags;
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spin_lock_irqsave(&oxfw->lock, flags);
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if (up)
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2015-09-19 10:21:59 +08:00
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amdtp_am824_midi_trigger(&oxfw->tx_stream,
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substrm->number, substrm);
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2014-12-08 23:10:48 +08:00
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else
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2015-09-19 10:21:59 +08:00
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amdtp_am824_midi_trigger(&oxfw->tx_stream,
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substrm->number, NULL);
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2014-12-08 23:10:48 +08:00
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spin_unlock_irqrestore(&oxfw->lock, flags);
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}
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static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up)
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{
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struct snd_oxfw *oxfw = substrm->rmidi->private_data;
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unsigned long flags;
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spin_lock_irqsave(&oxfw->lock, flags);
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if (up)
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2015-09-19 10:21:59 +08:00
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amdtp_am824_midi_trigger(&oxfw->rx_stream,
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substrm->number, substrm);
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2014-12-08 23:10:48 +08:00
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else
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2015-09-19 10:21:59 +08:00
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amdtp_am824_midi_trigger(&oxfw->rx_stream,
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substrm->number, NULL);
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2014-12-08 23:10:48 +08:00
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spin_unlock_irqrestore(&oxfw->lock, flags);
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}
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static void set_midi_substream_names(struct snd_oxfw *oxfw,
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struct snd_rawmidi_str *str)
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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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snprintf(subs->name, sizeof(subs->name),
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"%s MIDI %d",
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oxfw->card->shortname, subs->number + 1);
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}
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}
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int snd_oxfw_create_midi(struct snd_oxfw *oxfw)
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{
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2017-01-06 00:29:54 +08:00
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static const struct snd_rawmidi_ops capture_ops = {
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2017-01-05 20:48:09 +08:00
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.open = midi_capture_open,
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.close = midi_capture_close,
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.trigger = midi_capture_trigger,
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};
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2017-01-06 00:29:54 +08:00
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static const struct snd_rawmidi_ops playback_ops = {
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2017-01-05 20:48:09 +08:00
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.open = midi_playback_open,
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.close = midi_playback_close,
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.trigger = midi_playback_trigger,
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};
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2014-12-08 23:10:48 +08:00
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struct snd_rawmidi *rmidi;
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struct snd_rawmidi_str *str;
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2015-10-18 16:09:38 +08:00
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int err;
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if (oxfw->midi_input_ports == 0 && oxfw->midi_output_ports == 0)
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2014-12-08 23:10:48 +08:00
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return 0;
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/* create midi ports */
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err = snd_rawmidi_new(oxfw->card, oxfw->card->driver, 0,
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oxfw->midi_output_ports, oxfw->midi_input_ports,
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&rmidi);
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if (err < 0)
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return err;
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snprintf(rmidi->name, sizeof(rmidi->name),
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"%s MIDI", oxfw->card->shortname);
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rmidi->private_data = oxfw;
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if (oxfw->midi_input_ports > 0) {
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rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT;
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snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT,
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2017-01-05 20:48:09 +08:00
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&capture_ops);
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2014-12-08 23:10:48 +08:00
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str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT];
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set_midi_substream_names(oxfw, str);
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}
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if (oxfw->midi_output_ports > 0) {
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rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT;
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snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT,
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2017-01-05 20:48:09 +08:00
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&playback_ops);
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2014-12-08 23:10:48 +08:00
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str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT];
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set_midi_substream_names(oxfw, str);
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}
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if ((oxfw->midi_output_ports > 0) && (oxfw->midi_input_ports > 0))
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rmidi->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX;
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return 0;
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}
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