/*
* 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;
}
lue='20'>2025 30 35 40 space: include ignore mode: unified ssdiff stat only Merge branch 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull SMP hotplug update from Thomas Gleixner:
"This contains a trivial typo fix and an extension to the core code for
dynamically allocating states in the prepare stage.
The extension is necessary right now because we need a proper way to
unbreak LTTNG, which iscurrently non functional due to the removal of
the notifiers. Surely it's out of tree, but it's widely used by
distros.
The simple solution would have been to reserve a state for LTTNG, but
I'm not fond about unused crap in the kernel and the dynamic range,
which we admittedly should have done right away, allows us to remove
quite some of the hardcoded states, i.e. those which have no ordering
requirements. So doing the right thing now is better than having an
smaller intermediate solution which needs to be reworked anyway"
* 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
cpu/hotplug: Provide dynamic range for prepare stage
perf/x86/amd/ibs: Fix typo after cleanup state names in cpu/hotplug