From e09b41010ba33a20a87472ee821fa407a5b8da36 Mon Sep 17 00:00:00 2001 From: José Pekkarinen Date: Mon, 11 Apr 2016 10:41:07 +0300 Subject: These changes are the raw update to linux-4.4.6-rt14. Kernel sources are taken from kernel.org, and rt patch from the rt wiki download page. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen --- kernel/sound/firewire/digi00x/digi00x-midi.c | 223 +++++++++++++++++++++++++++ 1 file changed, 223 insertions(+) create mode 100644 kernel/sound/firewire/digi00x/digi00x-midi.c (limited to 'kernel/sound/firewire/digi00x/digi00x-midi.c') diff --git a/kernel/sound/firewire/digi00x/digi00x-midi.c b/kernel/sound/firewire/digi00x/digi00x-midi.c new file mode 100644 index 000000000..1a72a382b --- /dev/null +++ b/kernel/sound/firewire/digi00x/digi00x-midi.c @@ -0,0 +1,223 @@ +/* + * 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; +} -- cgit 1.2.3-korg