Takashi Sakamoto | 05588d3 | 2014-12-09 00:10:48 +0900 | [diff] [blame] | 1 | /* |
| 2 | * oxfw_midi.c - a part of driver for OXFW970/971 based devices |
| 3 | * |
| 4 | * Copyright (c) 2014 Takashi Sakamoto |
| 5 | * |
| 6 | * Licensed under the terms of the GNU General Public License, version 2. |
| 7 | */ |
| 8 | |
| 9 | #include "oxfw.h" |
| 10 | |
| 11 | static int midi_capture_open(struct snd_rawmidi_substream *substream) |
| 12 | { |
| 13 | struct snd_oxfw *oxfw = substream->rmidi->private_data; |
| 14 | int err; |
| 15 | |
Takashi Sakamoto | 8985f4a | 2014-12-09 00:10:49 +0900 | [diff] [blame] | 16 | err = snd_oxfw_stream_lock_try(oxfw); |
| 17 | if (err < 0) |
| 18 | return err; |
| 19 | |
Takashi Sakamoto | 05588d3 | 2014-12-09 00:10:48 +0900 | [diff] [blame] | 20 | mutex_lock(&oxfw->mutex); |
| 21 | |
| 22 | oxfw->capture_substreams++; |
| 23 | err = snd_oxfw_stream_start_simplex(oxfw, &oxfw->tx_stream, 0, 0); |
| 24 | |
| 25 | mutex_unlock(&oxfw->mutex); |
| 26 | |
Takashi Sakamoto | 8985f4a | 2014-12-09 00:10:49 +0900 | [diff] [blame] | 27 | if (err < 0) |
| 28 | snd_oxfw_stream_lock_release(oxfw); |
| 29 | |
Takashi Sakamoto | 05588d3 | 2014-12-09 00:10:48 +0900 | [diff] [blame] | 30 | return err; |
| 31 | } |
| 32 | |
| 33 | static int midi_playback_open(struct snd_rawmidi_substream *substream) |
| 34 | { |
| 35 | struct snd_oxfw *oxfw = substream->rmidi->private_data; |
| 36 | int err; |
| 37 | |
Takashi Sakamoto | 8985f4a | 2014-12-09 00:10:49 +0900 | [diff] [blame] | 38 | err = snd_oxfw_stream_lock_try(oxfw); |
| 39 | if (err < 0) |
| 40 | return err; |
| 41 | |
Takashi Sakamoto | 05588d3 | 2014-12-09 00:10:48 +0900 | [diff] [blame] | 42 | mutex_lock(&oxfw->mutex); |
| 43 | |
| 44 | oxfw->playback_substreams++; |
| 45 | err = snd_oxfw_stream_start_simplex(oxfw, &oxfw->rx_stream, 0, 0); |
| 46 | |
| 47 | mutex_unlock(&oxfw->mutex); |
| 48 | |
Takashi Sakamoto | 8985f4a | 2014-12-09 00:10:49 +0900 | [diff] [blame] | 49 | if (err < 0) |
| 50 | snd_oxfw_stream_lock_release(oxfw); |
| 51 | |
Takashi Sakamoto | 05588d3 | 2014-12-09 00:10:48 +0900 | [diff] [blame] | 52 | return err; |
| 53 | } |
| 54 | |
| 55 | static int midi_capture_close(struct snd_rawmidi_substream *substream) |
| 56 | { |
| 57 | struct snd_oxfw *oxfw = substream->rmidi->private_data; |
| 58 | |
| 59 | mutex_lock(&oxfw->mutex); |
| 60 | |
| 61 | oxfw->capture_substreams--; |
| 62 | snd_oxfw_stream_stop_simplex(oxfw, &oxfw->tx_stream); |
| 63 | |
| 64 | mutex_unlock(&oxfw->mutex); |
| 65 | |
Takashi Sakamoto | 8985f4a | 2014-12-09 00:10:49 +0900 | [diff] [blame] | 66 | snd_oxfw_stream_lock_release(oxfw); |
Takashi Sakamoto | 05588d3 | 2014-12-09 00:10:48 +0900 | [diff] [blame] | 67 | return 0; |
| 68 | } |
| 69 | |
| 70 | static int midi_playback_close(struct snd_rawmidi_substream *substream) |
| 71 | { |
| 72 | struct snd_oxfw *oxfw = substream->rmidi->private_data; |
| 73 | |
| 74 | mutex_lock(&oxfw->mutex); |
| 75 | |
| 76 | oxfw->playback_substreams--; |
| 77 | snd_oxfw_stream_stop_simplex(oxfw, &oxfw->rx_stream); |
| 78 | |
| 79 | mutex_unlock(&oxfw->mutex); |
| 80 | |
Takashi Sakamoto | 8985f4a | 2014-12-09 00:10:49 +0900 | [diff] [blame] | 81 | snd_oxfw_stream_lock_release(oxfw); |
Takashi Sakamoto | 05588d3 | 2014-12-09 00:10:48 +0900 | [diff] [blame] | 82 | return 0; |
| 83 | } |
| 84 | |
| 85 | static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up) |
| 86 | { |
| 87 | struct snd_oxfw *oxfw = substrm->rmidi->private_data; |
| 88 | unsigned long flags; |
| 89 | |
| 90 | spin_lock_irqsave(&oxfw->lock, flags); |
| 91 | |
| 92 | if (up) |
Takashi Sakamoto | 03e2a67 | 2015-09-19 11:21:59 +0900 | [diff] [blame] | 93 | amdtp_am824_midi_trigger(&oxfw->tx_stream, |
| 94 | substrm->number, substrm); |
Takashi Sakamoto | 05588d3 | 2014-12-09 00:10:48 +0900 | [diff] [blame] | 95 | else |
Takashi Sakamoto | 03e2a67 | 2015-09-19 11:21:59 +0900 | [diff] [blame] | 96 | amdtp_am824_midi_trigger(&oxfw->tx_stream, |
| 97 | substrm->number, NULL); |
Takashi Sakamoto | 05588d3 | 2014-12-09 00:10:48 +0900 | [diff] [blame] | 98 | |
| 99 | spin_unlock_irqrestore(&oxfw->lock, flags); |
| 100 | } |
| 101 | |
| 102 | static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up) |
| 103 | { |
| 104 | struct snd_oxfw *oxfw = substrm->rmidi->private_data; |
| 105 | unsigned long flags; |
| 106 | |
| 107 | spin_lock_irqsave(&oxfw->lock, flags); |
| 108 | |
| 109 | if (up) |
Takashi Sakamoto | 03e2a67 | 2015-09-19 11:21:59 +0900 | [diff] [blame] | 110 | amdtp_am824_midi_trigger(&oxfw->rx_stream, |
| 111 | substrm->number, substrm); |
Takashi Sakamoto | 05588d3 | 2014-12-09 00:10:48 +0900 | [diff] [blame] | 112 | else |
Takashi Sakamoto | 03e2a67 | 2015-09-19 11:21:59 +0900 | [diff] [blame] | 113 | amdtp_am824_midi_trigger(&oxfw->rx_stream, |
| 114 | substrm->number, NULL); |
Takashi Sakamoto | 05588d3 | 2014-12-09 00:10:48 +0900 | [diff] [blame] | 115 | |
| 116 | spin_unlock_irqrestore(&oxfw->lock, flags); |
| 117 | } |
| 118 | |
| 119 | static struct snd_rawmidi_ops midi_capture_ops = { |
| 120 | .open = midi_capture_open, |
| 121 | .close = midi_capture_close, |
| 122 | .trigger = midi_capture_trigger, |
| 123 | }; |
| 124 | |
| 125 | static struct snd_rawmidi_ops midi_playback_ops = { |
| 126 | .open = midi_playback_open, |
| 127 | .close = midi_playback_close, |
| 128 | .trigger = midi_playback_trigger, |
| 129 | }; |
| 130 | |
| 131 | static void set_midi_substream_names(struct snd_oxfw *oxfw, |
| 132 | struct snd_rawmidi_str *str) |
| 133 | { |
| 134 | struct snd_rawmidi_substream *subs; |
| 135 | |
| 136 | list_for_each_entry(subs, &str->substreams, list) { |
| 137 | snprintf(subs->name, sizeof(subs->name), |
| 138 | "%s MIDI %d", |
| 139 | oxfw->card->shortname, subs->number + 1); |
| 140 | } |
| 141 | } |
| 142 | |
| 143 | int snd_oxfw_create_midi(struct snd_oxfw *oxfw) |
| 144 | { |
Takashi Sakamoto | 05588d3 | 2014-12-09 00:10:48 +0900 | [diff] [blame] | 145 | struct snd_rawmidi *rmidi; |
| 146 | struct snd_rawmidi_str *str; |
Takashi Sakamoto | 3205604 | 2015-10-18 17:09:38 +0900 | [diff] [blame] | 147 | int err; |
Takashi Sakamoto | 05588d3 | 2014-12-09 00:10:48 +0900 | [diff] [blame] | 148 | |
Takashi Sakamoto | 3205604 | 2015-10-18 17:09:38 +0900 | [diff] [blame] | 149 | if (oxfw->midi_input_ports == 0 && oxfw->midi_output_ports == 0) |
Takashi Sakamoto | 05588d3 | 2014-12-09 00:10:48 +0900 | [diff] [blame] | 150 | return 0; |
| 151 | |
| 152 | /* create midi ports */ |
| 153 | err = snd_rawmidi_new(oxfw->card, oxfw->card->driver, 0, |
| 154 | oxfw->midi_output_ports, oxfw->midi_input_ports, |
| 155 | &rmidi); |
| 156 | if (err < 0) |
| 157 | return err; |
| 158 | |
| 159 | snprintf(rmidi->name, sizeof(rmidi->name), |
| 160 | "%s MIDI", oxfw->card->shortname); |
| 161 | rmidi->private_data = oxfw; |
| 162 | |
| 163 | if (oxfw->midi_input_ports > 0) { |
| 164 | rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT; |
| 165 | |
| 166 | snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, |
| 167 | &midi_capture_ops); |
| 168 | |
| 169 | str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT]; |
| 170 | |
| 171 | set_midi_substream_names(oxfw, str); |
| 172 | } |
| 173 | |
| 174 | if (oxfw->midi_output_ports > 0) { |
| 175 | rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT; |
| 176 | |
| 177 | snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, |
| 178 | &midi_playback_ops); |
| 179 | |
| 180 | str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT]; |
| 181 | |
| 182 | set_midi_substream_names(oxfw, str); |
| 183 | } |
| 184 | |
| 185 | if ((oxfw->midi_output_ports > 0) && (oxfw->midi_input_ports > 0)) |
| 186 | rmidi->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX; |
| 187 | |
| 188 | return 0; |
| 189 | } |