1 // SPDX-License-Identifier: GPL-2.0-only
3  * dice_midi.c - a part of driver for Dice based devices
7 #include "dice.h"
11 	struct snd_dice *dice = substream->rmidi->private_data;  in midi_open()  local
14 	err = snd_dice_stream_lock_try(dice);  in midi_open()
18 	mutex_lock(&dice->mutex);  in midi_open()
20 	err = snd_dice_stream_reserve_duplex(dice, 0, 0, 0);  in midi_open()
22 		++dice->substreams_counter;  in midi_open()
23 		err = snd_dice_stream_start_duplex(dice);  in midi_open()
25 			--dice->substreams_counter;  in midi_open()
28 	mutex_unlock(&dice->mutex);  in midi_open()
31 		snd_dice_stream_lock_release(dice);  in midi_open()
38 	struct snd_dice *dice = substream->rmidi->private_data;  in midi_close()  local
40 	mutex_lock(&dice->mutex);  in midi_close()
42 	--dice->substreams_counter;  in midi_close()
43 	snd_dice_stream_stop_duplex(dice);  in midi_close()
45 	mutex_unlock(&dice->mutex);  in midi_close()
47 	snd_dice_stream_lock_release(dice);  in midi_close()
53 	struct snd_dice *dice = substrm->rmidi->private_data;  in midi_capture_trigger()  local
56 	spin_lock_irqsave(&dice->lock, flags);  in midi_capture_trigger()
59 		amdtp_am824_midi_trigger(&dice->tx_stream[0],  in midi_capture_trigger()
60 					  substrm->number, substrm);  in midi_capture_trigger()
62 		amdtp_am824_midi_trigger(&dice->tx_stream[0],  in midi_capture_trigger()
63 					  substrm->number, NULL);  in midi_capture_trigger()
65 	spin_unlock_irqrestore(&dice->lock, flags);  in midi_capture_trigger()
70 	struct snd_dice *dice = substrm->rmidi->private_data;  in midi_playback_trigger()  local
73 	spin_lock_irqsave(&dice->lock, flags);  in midi_playback_trigger()
76 		amdtp_am824_midi_trigger(&dice->rx_stream[0],  in midi_playback_trigger()
77 					 substrm->number, substrm);  in midi_playback_trigger()
79 		amdtp_am824_midi_trigger(&dice->rx_stream[0],  in midi_playback_trigger()
80 					 substrm->number, NULL);  in midi_playback_trigger()
82 	spin_unlock_irqrestore(&dice->lock, flags);  in midi_playback_trigger()
85 static void set_midi_substream_names(struct snd_dice *dice,  in set_midi_substream_names()  argument
90 	list_for_each_entry(subs, &str->substreams, list) {  in set_midi_substream_names()
91 		scnprintf(subs->name, sizeof(subs->name),  in set_midi_substream_names()
92 			  "%s MIDI %d", dice->card->shortname, subs->number + 1);  in set_midi_substream_names()
96 int snd_dice_create_midi(struct snd_dice *dice)  in snd_dice_create_midi()  argument
99 		.open		= midi_open,  in snd_dice_create_midi()
104 		.open		= midi_open,  in snd_dice_create_midi()
117 		midi_in_ports = max(midi_in_ports, dice->tx_midi_ports[i]);  in snd_dice_create_midi()
118 		midi_out_ports = max(midi_out_ports, dice->rx_midi_ports[i]);  in snd_dice_create_midi()
125 	err = snd_rawmidi_new(dice->card, dice->card->driver, 0,  in snd_dice_create_midi()
131 	snprintf(rmidi->name, sizeof(rmidi->name),  in snd_dice_create_midi()
132 		 "%s MIDI", dice->card->shortname);  in snd_dice_create_midi()
133 	rmidi->private_data = dice;  in snd_dice_create_midi()
136 		rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT;  in snd_dice_create_midi()
141 		str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT];  in snd_dice_create_midi()
143 		set_midi_substream_names(dice, str);  in snd_dice_create_midi()
147 		rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT;  in snd_dice_create_midi()
152 		str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT];  in snd_dice_create_midi()
154 		set_midi_substream_names(dice, str);  in snd_dice_create_midi()
158 		rmidi->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX;  in snd_dice_create_midi()