/* * bebob_midi.c - a part of driver for BeBoB based devices * * Copyright (c) 2013-2014 Takashi Sakamoto * * Licensed under the terms of the GNU General Public License, version 2. */ #include "bebob.h" static int midi_capture_open(struct snd_rawmidi_substream *substream) { struct snd_bebob *bebob = substream->rmidi->private_data; int err; err = snd_bebob_stream_lock_try(bebob); if (err < 0) goto end; mutex_lock(&bebob->mutex); bebob->substreams_counter++; err = snd_bebob_stream_start_duplex(bebob, 0); mutex_unlock(&bebob->mutex); if (err < 0) snd_bebob_stream_lock_release(bebob); end: return err; } static int midi_playback_open(struct snd_rawmidi_substream *substream) { struct snd_bebob *bebob = substream->rmidi->private_data; int err; err = snd_bebob_stream_lock_try(bebob); if (err < 0) goto end; mutex_lock(&bebob->mutex); bebob->substreams_counter++; err = snd_bebob_stream_start_duplex(bebob, 0); mutex_unlock(&bebob->mutex); if (err < 0) snd_bebob_stream_lock_release(bebob); end: return err; } static int midi_capture_close(struct snd_rawmidi_substream *substream) { struct snd_bebob *bebob = substream->rmidi->private_data; mutex_lock(&bebob->mutex); bebob->substreams_counter--; snd_bebob_stream_stop_duplex(bebob); mutex_unlock(&bebob->mutex); snd_bebob_stream_lock_release(bebob); return 0; } static int midi_playback_close(struct snd_rawmidi_substream *substream) { struct snd_bebob *bebob = substream->rmidi->private_data; mutex_lock(&bebob->mutex); bebob->substreams_counter--; snd_bebob_stream_stop_duplex(bebob); mutex_unlock(&bebob->mutex); snd_bebob_stream_lock_release(bebob); return 0; } static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up) { struct snd_bebob *bebob = substrm->rmidi->private_data; unsigned long flags; spin_lock_irqsave(&bebob->lock, flags); if (up) amdtp_am824_midi_trigger(&bebob->tx_stream, substrm->number, substrm); else amdtp_am824_midi_trigger(&bebob->tx_stream, substrm->number, NULL); spin_unlock_irqrestore(&bebob->lock, flags); } static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up) { struct snd_bebob *bebob = substrm->rmidi->private_data; unsigned long flags; spin_lock_irqsave(&bebob->lock, flags); if (up) amdtp_am824_midi_trigger(&bebob->rx_stream, substrm->number, substrm); else amdtp_am824_midi_trigger(&bebob->rx_stream, substrm->number, NULL); spin_unlock_irqrestore(&bebob->lock, flags); } static struct snd_rawmidi_ops midi_capture_ops = { .open = midi_capture_open, .close = midi_capture_close, .trigger = midi_capture_trigger, }; static struct snd_rawmidi_ops midi_playback_ops = { .open = midi_playback_open, .close = midi_playback_close, .trigger = midi_playback_trigger, }; static void set_midi_substream_names(struct snd_bebob *bebob, 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", bebob->card->shortname, subs->number + 1); } } int snd_bebob_create_midi_devices(struct snd_bebob *bebob) { struct snd_rawmidi *rmidi; struct snd_rawmidi_str *str; int err; /* create midi ports */ err = snd_rawmidi_new(bebob->card, bebob->card->driver, 0, bebob->midi_output_ports, bebob->midi_input_ports, &rmidi); if (err < 0) return err; snprintf(rmidi->name, sizeof(rmidi->name), "%s MIDI", bebob->card->shortname); rmidi->private_data = bebob; if (bebob->midi_input_ports > 0) { rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT; snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &midi_capture_ops); str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT]; set_midi_substream_names(bebob, str); } if (bebob->midi_output_ports > 0) { rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT; snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &midi_playback_ops); str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT]; set_midi_substream_names(bebob, str); } if ((bebob->midi_output_ports > 0) && (bebob->midi_input_ports > 0)) rmidi->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX; return 0; } d>2016-12-12 21:58:13 -0800 commite7aa8c2eb11ba69b1b69099c3c7bd6be3087b0ba (patch) treef63906f41699c8e38af9d12b063e2ceab0286ef2 /sound/soc/codecs/pcm179x-i2c.c parente34bac726d27056081d0250c0e173e4b155aa340 (diff)parent868c97a846a73e937d835b09b8c885a69df50ec8 (diff)
Merge tag 'docs-4.10' of git://git.lwn.net/linuxHEADmaster
Pull documentation update from Jonathan Corbet: "These are the documentation changes for 4.10. It's another busy cycle for the docs tree, as the sphinx conversion continues. Highlights include: - Further work on PDF output, which remains a bit of a pain but should be more solid now. - Five more DocBook template files converted to Sphinx. Only 27 to go... Lots of plain-text files have also been converted and integrated. - Images in binary formats have been replaced with more source-friendly versions. - Various bits of organizational work, including the renaming of various files discussed at the kernel summit. - New documentation for the device_link mechanism. ... and, of course, lots of typo fixes and small updates" * tag 'docs-4.10' of git://git.lwn.net/linux: (193 commits) dma-buf: Extract dma-buf.rst Update Documentation/00-INDEX docs: 00-INDEX: document directories/files with no docs docs: 00-INDEX: remove non-existing entries docs: 00-INDEX: add missing entries for documentation files/dirs docs: 00-INDEX: consolidate process/ and admin-guide/ description scripts: add a script to check if Documentation/00-INDEX is sane Docs: change sh -> awk in REPORTING-BUGS Documentation/core-api/device_link: Add initial documentation core-api: remove an unexpected unident ppc/idle: Add documentation for powersave=off Doc: Correct typo, "Introdution" => "Introduction" Documentation/atomic_ops.txt: convert to ReST markup Documentation/local_ops.txt: convert to ReST markup Documentation/assoc_array.txt: convert to ReST markup docs-rst: parse-headers.pl: cleanup the documentation docs-rst: fix media cleandocs target docs-rst: media/Makefile: reorganize the rules docs-rst: media: build SVG from graphviz files docs-rst: replace bayer.png by a SVG image ...
Diffstat (limited to 'sound/soc/codecs/pcm179x-i2c.c')