/* * oxfw_midi.c - a part of driver for OXFW970/971 based devices * * Copyright (c) 2014 Takashi Sakamoto * * Licensed under the terms of the GNU General Public License, version 2. */ #include "oxfw.h" static int midi_capture_open(struct snd_rawmidi_substream *substream) { struct snd_oxfw *oxfw = substream->rmidi->private_data; int err; err = snd_oxfw_stream_lock_try(oxfw); if (err < 0) return err; mutex_lock(&oxfw->mutex); oxfw->capture_substreams++; err = snd_oxfw_stream_start_simplex(oxfw, &oxfw->tx_stream, 0, 0); mutex_unlock(&oxfw->mutex); if (err < 0) snd_oxfw_stream_lock_release(oxfw); return err; } static int midi_playback_open(struct snd_rawmidi_substream *substream) { struct snd_oxfw *oxfw = substream->rmidi->private_data; int err; err = snd_oxfw_stream_lock_try(oxfw); if (err < 0) return err; mutex_lock(&oxfw->mutex); oxfw->playback_substreams++; err = snd_oxfw_stream_start_simplex(oxfw, &oxfw->rx_stream, 0, 0); mutex_unlock(&oxfw->mutex); if (err < 0) snd_oxfw_stream_lock_release(oxfw); return err; } static int midi_capture_close(struct snd_rawmidi_substream *substream) { struct snd_oxfw *oxfw = substream->rmidi->private_data; mutex_lock(&oxfw->mutex); oxfw->capture_substreams--; snd_oxfw_stream_stop_simplex(oxfw, &oxfw->tx_stream); mutex_unlock(&oxfw->mutex); snd_oxfw_stream_lock_release(oxfw); return 0; } static int midi_playback_close(struct snd_rawmidi_substream *substream) { struct snd_oxfw *oxfw = substream->rmidi->private_data; mutex_lock(&oxfw->mutex); oxfw->playback_substreams--; snd_oxfw_stream_stop_simplex(oxfw, &oxfw->rx_stream); mutex_unlock(&oxfw->mutex); snd_oxfw_stream_lock_release(oxfw); return 0; } static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up) { struct snd_oxfw *oxfw = substrm->rmidi->private_data; unsigned long flags; spin_lock_irqsave(&oxfw->lock, flags); if (up) amdtp_am824_midi_trigger(&oxfw->tx_stream, substrm->number, substrm); else amdtp_am824_midi_trigger(&oxfw->tx_stream, substrm->number, NULL); spin_unlock_irqrestore(&oxfw->lock, flags); } static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up) { struct snd_oxfw *oxfw = substrm->rmidi->private_data; unsigned long flags; spin_lock_irqsave(&oxfw->lock, flags); if (up) amdtp_am824_midi_trigger(&oxfw->rx_stream, substrm->number, substrm); else amdtp_am824_midi_trigger(&oxfw->rx_stream, substrm->number, NULL); spin_unlock_irqrestore(&oxfw->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_oxfw *oxfw, 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", oxfw->card->shortname, subs->number + 1); } } int snd_oxfw_create_midi(struct snd_oxfw *oxfw) { struct snd_rawmidi *rmidi; struct snd_rawmidi_str *str; int err; if (oxfw->midi_input_ports == 0 && oxfw->midi_output_ports == 0) return 0; /* create midi ports */ err = snd_rawmidi_new(oxfw->card, oxfw->card->driver, 0, oxfw->midi_output_ports, oxfw->midi_input_ports, &rmidi); if (err < 0) return err; snprintf(rmidi->name, sizeof(rmidi->name), "%s MIDI", oxfw->card->shortname); rmidi->private_data = oxfw; if (oxfw->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(oxfw, str); } if (oxfw->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(oxfw, str); } if ((oxfw->midi_output_ports > 0) && (oxfw->midi_input_ports > 0)) rmidi->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX; return 0; } >space:mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2017-02-02 12:34:27 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-02 12:34:27 -0800
commitf2557779e1a9cfbf69c99b74da26cc1b2b10e752 (patch)
tree8ddca65c897199add553948c429072b8bd463692 /drivers/usb/chipidea/Makefile
parent6d04dfc8966019b8b0977b2cb942351f13d2b178 (diff)
parent030305d69fc6963c16003f50d7e8d74b02d0a143 (diff)
Merge tag 'pci-v4.10-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fix from Bjorn Helgaas: "Configure ASPM on the link from a PCI-to-PCIe bridge (avoids a NULL pointer dereference on topologies including these bridges)" * tag 'pci-v4.10-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI/ASPM: Handle PCI-to-PCIe bridges as roots of PCIe hierarchies
Diffstat (limited to 'drivers/usb/chipidea/Makefile')