^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * bebob_midi.c - a part of driver for BeBoB based devices
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (c) 2013-2014 Takashi Sakamoto
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include "bebob.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) static int midi_open(struct snd_rawmidi_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) struct snd_bebob *bebob = substream->rmidi->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) err = snd_bebob_stream_lock_try(bebob);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) mutex_lock(&bebob->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) err = snd_bebob_stream_reserve_duplex(bebob, 0, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) if (err >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) ++bebob->substreams_counter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) err = snd_bebob_stream_start_duplex(bebob);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) --bebob->substreams_counter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) mutex_unlock(&bebob->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) snd_bebob_stream_lock_release(bebob);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) static int midi_close(struct snd_rawmidi_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) struct snd_bebob *bebob = substream->rmidi->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) mutex_lock(&bebob->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) bebob->substreams_counter--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) snd_bebob_stream_stop_duplex(bebob);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) mutex_unlock(&bebob->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) snd_bebob_stream_lock_release(bebob);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) struct snd_bebob *bebob = substrm->rmidi->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) spin_lock_irqsave(&bebob->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) if (up)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) amdtp_am824_midi_trigger(&bebob->tx_stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) substrm->number, substrm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) amdtp_am824_midi_trigger(&bebob->tx_stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) substrm->number, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) spin_unlock_irqrestore(&bebob->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) struct snd_bebob *bebob = substrm->rmidi->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) spin_lock_irqsave(&bebob->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) if (up)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) amdtp_am824_midi_trigger(&bebob->rx_stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) substrm->number, substrm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) amdtp_am824_midi_trigger(&bebob->rx_stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) substrm->number, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) spin_unlock_irqrestore(&bebob->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) static void set_midi_substream_names(struct snd_bebob *bebob,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) struct snd_rawmidi_str *str)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) struct snd_rawmidi_substream *subs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) list_for_each_entry(subs, &str->substreams, list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) snprintf(subs->name, sizeof(subs->name),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) "%s MIDI %d",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) bebob->card->shortname, subs->number + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) int snd_bebob_create_midi_devices(struct snd_bebob *bebob)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) static const struct snd_rawmidi_ops capture_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) .open = midi_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) .close = midi_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) .trigger = midi_capture_trigger,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) static const struct snd_rawmidi_ops playback_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) .open = midi_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) .close = midi_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) .trigger = midi_playback_trigger,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) struct snd_rawmidi *rmidi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) struct snd_rawmidi_str *str;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) /* create midi ports */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) err = snd_rawmidi_new(bebob->card, bebob->card->driver, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) bebob->midi_output_ports, bebob->midi_input_ports,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) &rmidi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) snprintf(rmidi->name, sizeof(rmidi->name),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) "%s MIDI", bebob->card->shortname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) rmidi->private_data = bebob;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) if (bebob->midi_input_ports > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) &capture_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) set_midi_substream_names(bebob, str);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) if (bebob->midi_output_ports > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) &playback_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) set_midi_substream_names(bebob, str);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) if ((bebob->midi_output_ports > 0) && (bebob->midi_input_ports > 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) rmidi->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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