mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
145 lines
3.4 KiB
145 lines
3.4 KiB
// SPDX-License-Identifier: GPL-2.0-only |
|
/* |
|
* fireworks_midi.c - a part of driver for Fireworks based devices |
|
* |
|
* Copyright (c) 2009-2010 Clemens Ladisch |
|
* Copyright (c) 2013-2014 Takashi Sakamoto |
|
*/ |
|
#include "fireworks.h" |
|
|
|
static int midi_open(struct snd_rawmidi_substream *substream) |
|
{ |
|
struct snd_efw *efw = substream->rmidi->private_data; |
|
int err; |
|
|
|
err = snd_efw_stream_lock_try(efw); |
|
if (err < 0) |
|
goto end; |
|
|
|
mutex_lock(&efw->mutex); |
|
err = snd_efw_stream_reserve_duplex(efw, 0, 0, 0); |
|
if (err >= 0) { |
|
++efw->substreams_counter; |
|
err = snd_efw_stream_start_duplex(efw); |
|
if (err < 0) |
|
--efw->substreams_counter; |
|
} |
|
mutex_unlock(&efw->mutex); |
|
if (err < 0) |
|
snd_efw_stream_lock_release(efw); |
|
end: |
|
return err; |
|
} |
|
|
|
static int midi_close(struct snd_rawmidi_substream *substream) |
|
{ |
|
struct snd_efw *efw = substream->rmidi->private_data; |
|
|
|
mutex_lock(&efw->mutex); |
|
--efw->substreams_counter; |
|
snd_efw_stream_stop_duplex(efw); |
|
mutex_unlock(&efw->mutex); |
|
|
|
snd_efw_stream_lock_release(efw); |
|
return 0; |
|
} |
|
|
|
static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up) |
|
{ |
|
struct snd_efw *efw = substrm->rmidi->private_data; |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&efw->lock, flags); |
|
|
|
if (up) |
|
amdtp_am824_midi_trigger(&efw->tx_stream, |
|
substrm->number, substrm); |
|
else |
|
amdtp_am824_midi_trigger(&efw->tx_stream, |
|
substrm->number, NULL); |
|
|
|
spin_unlock_irqrestore(&efw->lock, flags); |
|
} |
|
|
|
static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up) |
|
{ |
|
struct snd_efw *efw = substrm->rmidi->private_data; |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&efw->lock, flags); |
|
|
|
if (up) |
|
amdtp_am824_midi_trigger(&efw->rx_stream, |
|
substrm->number, substrm); |
|
else |
|
amdtp_am824_midi_trigger(&efw->rx_stream, |
|
substrm->number, NULL); |
|
|
|
spin_unlock_irqrestore(&efw->lock, flags); |
|
} |
|
|
|
static void set_midi_substream_names(struct snd_efw *efw, |
|
struct snd_rawmidi_str *str) |
|
{ |
|
struct snd_rawmidi_substream *subs; |
|
|
|
list_for_each_entry(subs, &str->substreams, list) { |
|
snprintf(subs->name, sizeof(subs->name), |
|
"%s MIDI %d", efw->card->shortname, subs->number + 1); |
|
} |
|
} |
|
|
|
int snd_efw_create_midi_devices(struct snd_efw *efw) |
|
{ |
|
static const struct snd_rawmidi_ops capture_ops = { |
|
.open = midi_open, |
|
.close = midi_close, |
|
.trigger = midi_capture_trigger, |
|
}; |
|
static const struct snd_rawmidi_ops playback_ops = { |
|
.open = midi_open, |
|
.close = midi_close, |
|
.trigger = midi_playback_trigger, |
|
}; |
|
struct snd_rawmidi *rmidi; |
|
struct snd_rawmidi_str *str; |
|
int err; |
|
|
|
/* create midi ports */ |
|
err = snd_rawmidi_new(efw->card, efw->card->driver, 0, |
|
efw->midi_out_ports, efw->midi_in_ports, |
|
&rmidi); |
|
if (err < 0) |
|
return err; |
|
|
|
snprintf(rmidi->name, sizeof(rmidi->name), |
|
"%s MIDI", efw->card->shortname); |
|
rmidi->private_data = efw; |
|
|
|
if (efw->midi_in_ports > 0) { |
|
rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT; |
|
|
|
snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, |
|
&capture_ops); |
|
|
|
str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT]; |
|
|
|
set_midi_substream_names(efw, str); |
|
} |
|
|
|
if (efw->midi_out_ports > 0) { |
|
rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT; |
|
|
|
snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, |
|
&playback_ops); |
|
|
|
str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT]; |
|
|
|
set_midi_substream_names(efw, str); |
|
} |
|
|
|
if ((efw->midi_out_ports > 0) && (efw->midi_in_ports > 0)) |
|
rmidi->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX; |
|
|
|
return 0; |
|
}
|
|
|