Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 | /* * digi00x-midi.h - a part of driver for Digidesign Digi 002/003 family * * Copyright (c) 2014-2015 Takashi Sakamoto * * Licensed under the terms of the GNU General Public License, version 2. */ #include "digi00x.h" static int midi_phys_open(struct snd_rawmidi_substream *substream) { struct snd_dg00x *dg00x = substream->rmidi->private_data; int err; err = snd_dg00x_stream_lock_try(dg00x); if (err < 0) return err; mutex_lock(&dg00x->mutex); dg00x->substreams_counter++; err = snd_dg00x_stream_start_duplex(dg00x, 0); mutex_unlock(&dg00x->mutex); if (err < 0) snd_dg00x_stream_lock_release(dg00x); return err; } static int midi_phys_close(struct snd_rawmidi_substream *substream) { struct snd_dg00x *dg00x = substream->rmidi->private_data; mutex_lock(&dg00x->mutex); dg00x->substreams_counter--; snd_dg00x_stream_stop_duplex(dg00x); mutex_unlock(&dg00x->mutex); snd_dg00x_stream_lock_release(dg00x); return 0; } static void midi_phys_capture_trigger(struct snd_rawmidi_substream *substream, int up) { struct snd_dg00x *dg00x = substream->rmidi->private_data; unsigned long flags; spin_lock_irqsave(&dg00x->lock, flags); if (up) amdtp_dot_midi_trigger(&dg00x->tx_stream, substream->number, substream); else amdtp_dot_midi_trigger(&dg00x->tx_stream, substream->number, NULL); spin_unlock_irqrestore(&dg00x->lock, flags); } static void midi_phys_playback_trigger(struct snd_rawmidi_substream *substream, int up) { struct snd_dg00x *dg00x = substream->rmidi->private_data; unsigned long flags; spin_lock_irqsave(&dg00x->lock, flags); if (up) amdtp_dot_midi_trigger(&dg00x->rx_stream, substream->number, substream); else amdtp_dot_midi_trigger(&dg00x->rx_stream, substream->number, NULL); spin_unlock_irqrestore(&dg00x->lock, flags); } static struct snd_rawmidi_ops midi_phys_capture_ops = { .open = midi_phys_open, .close = midi_phys_close, .trigger = midi_phys_capture_trigger, }; static struct snd_rawmidi_ops midi_phys_playback_ops = { .open = midi_phys_open, .close = midi_phys_close, .trigger = midi_phys_playback_trigger, }; static int midi_ctl_open(struct snd_rawmidi_substream *substream) { /* Do nothing. */ return 0; } static int midi_ctl_capture_close(struct snd_rawmidi_substream *substream) { /* Do nothing. */ return 0; } static int midi_ctl_playback_close(struct snd_rawmidi_substream *substream) { struct snd_dg00x *dg00x = substream->rmidi->private_data; snd_fw_async_midi_port_finish(&dg00x->out_control); return 0; } static void midi_ctl_capture_trigger(struct snd_rawmidi_substream *substream, int up) { struct snd_dg00x *dg00x = substream->rmidi->private_data; unsigned long flags; spin_lock_irqsave(&dg00x->lock, flags); if (up) dg00x->in_control = substream; else dg00x->in_control = NULL; spin_unlock_irqrestore(&dg00x->lock, flags); } static void midi_ctl_playback_trigger(struct snd_rawmidi_substream *substream, int up) { struct snd_dg00x *dg00x = substream->rmidi->private_data; unsigned long flags; spin_lock_irqsave(&dg00x->lock, flags); if (up) snd_fw_async_midi_port_run(&dg00x->out_control, substream); spin_unlock_irqrestore(&dg00x->lock, flags); } static struct snd_rawmidi_ops midi_ctl_capture_ops = { .open = midi_ctl_open, .close = midi_ctl_capture_close, .trigger = midi_ctl_capture_trigger, }; static struct snd_rawmidi_ops midi_ctl_playback_ops = { .open = midi_ctl_open, .close = midi_ctl_playback_close, .trigger = midi_ctl_playback_trigger, }; static void set_midi_substream_names(struct snd_dg00x *dg00x, struct snd_rawmidi_str *str, bool is_ctl) { struct snd_rawmidi_substream *subs; list_for_each_entry(subs, &str->substreams, list) { if (!is_ctl) snprintf(subs->name, sizeof(subs->name), "%s MIDI %d", dg00x->card->shortname, subs->number + 1); else /* This port is for asynchronous transaction. */ snprintf(subs->name, sizeof(subs->name), "%s control", dg00x->card->shortname); } } int snd_dg00x_create_midi_devices(struct snd_dg00x *dg00x) { struct snd_rawmidi *rmidi[2]; struct snd_rawmidi_str *str; unsigned int i; int err; /* Add physical midi ports. */ err = snd_rawmidi_new(dg00x->card, dg00x->card->driver, 0, DOT_MIDI_OUT_PORTS, DOT_MIDI_IN_PORTS, &rmidi[0]); if (err < 0) return err; snprintf(rmidi[0]->name, sizeof(rmidi[0]->name), "%s MIDI", dg00x->card->shortname); snd_rawmidi_set_ops(rmidi[0], SNDRV_RAWMIDI_STREAM_INPUT, &midi_phys_capture_ops); snd_rawmidi_set_ops(rmidi[0], SNDRV_RAWMIDI_STREAM_OUTPUT, &midi_phys_playback_ops); /* Add a pair of control midi ports. */ err = snd_rawmidi_new(dg00x->card, dg00x->card->driver, 1, 1, 1, &rmidi[1]); if (err < 0) return err; snprintf(rmidi[1]->name, sizeof(rmidi[1]->name), "%s control", dg00x->card->shortname); snd_rawmidi_set_ops(rmidi[1], SNDRV_RAWMIDI_STREAM_INPUT, &midi_ctl_capture_ops); snd_rawmidi_set_ops(rmidi[1], SNDRV_RAWMIDI_STREAM_OUTPUT, &midi_ctl_playback_ops); for (i = 0; i < ARRAY_SIZE(rmidi); i++) { rmidi[i]->private_data = dg00x; rmidi[i]->info_flags |= SNDRV_RAWMIDI_INFO_INPUT; str = &rmidi[i]->streams[SNDRV_RAWMIDI_STREAM_INPUT]; set_midi_substream_names(dg00x, str, i); rmidi[i]->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT; str = &rmidi[i]->streams[SNDRV_RAWMIDI_STREAM_OUTPUT]; set_midi_substream_names(dg00x, str, i); rmidi[i]->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX; } return 0; } |