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ALSA: firewire-lib: move MIDI trigger helper function to AM824 layer 

In IEC 61883-6, MIDI messages are transferred in MIDI conformant data
channel. Essentially, packet streaming layer is not responsible for MIDI
functionality.

This commit moves MIDI trigger helper function from the layer to AM824
layer. The rest of codes related to MIDI functionality will be moved in
later commits.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto 2015-09-19 11:21:59 +09:00 committed by Takashi Iwai
parent f65be911c0
commit 03e2a67eed
7 changed files with 50 additions and 46 deletions
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18
sound/firewire/amdtp-am824.c
View File

@ -100,6 +100,24 @@ int amdtp_am824_add_pcm_hw_constraints(struct amdtp_stream *s,
}
EXPORT_SYMBOL_GPL(amdtp_am824_add_pcm_hw_constraints);
/**
* amdtp_am824_midi_trigger - start/stop playback/capture with a MIDI device
* @s: the AMDTP stream
* @port: index of MIDI port
* @midi: the MIDI device to be started, or %NULL to stop the current device
*
* Call this function on a running isochronous stream to enable the actual
* transmission of MIDI data. This function should be called from the MIDI
* device's .trigger callback.
*/
void amdtp_am824_midi_trigger(struct amdtp_stream *s, unsigned int port,
struct snd_rawmidi_substream *midi)
{
if (port < s->midi_ports)
ACCESS_ONCE(s->midi[port]) = midi;
}
EXPORT_SYMBOL_GPL(amdtp_am824_midi_trigger);
/**
* amdtp_am824_init - initialize an AMDTP stream structure to handle AM824
* data block

4
sound/firewire/amdtp-am824.h
View File

@ -2,6 +2,7 @@
#define SOUND_FIREWIRE_AMDTP_AM824_H_INCLUDED
#include <sound/pcm.h>
#include <sound/rawmidi.h>
#include "amdtp-stream.h"
@ -19,6 +20,9 @@ void amdtp_am824_set_midi_position(struct amdtp_stream *s,
int amdtp_am824_add_pcm_hw_constraints(struct amdtp_stream *s,
struct snd_pcm_runtime *runtime);
void amdtp_am824_midi_trigger(struct amdtp_stream *s, unsigned int port,
struct snd_rawmidi_substream *midi);
int amdtp_am824_init(struct amdtp_stream *s, struct fw_unit *unit,
enum amdtp_stream_direction dir, enum cip_flags flags);
#endif

18
sound/firewire/amdtp-stream.h
View File

@ -248,24 +248,6 @@ static inline void amdtp_stream_pcm_trigger(struct amdtp_stream *s,
ACCESS_ONCE(s->pcm) = pcm;
}
/**
* amdtp_stream_midi_trigger - start/stop playback/capture with a MIDI device
* @s: the AMDTP stream
* @port: index of MIDI port
* @midi: the MIDI device to be started, or %NULL to stop the current device
*
* Call this function on a running isochronous stream to enable the actual
* transmission of MIDI data. This function should be called from the MIDI
* device's .trigger callback.
*/
static inline void amdtp_stream_midi_trigger(struct amdtp_stream *s,
unsigned int port,
struct snd_rawmidi_substream *midi)
{
if (port < s->midi_ports)
ACCESS_ONCE(s->midi[port]) = midi;
}
static inline bool cip_sfc_is_base_44100(enum cip_sfc sfc)
{
return sfc & 1;

16
sound/firewire/bebob/bebob_midi.c
View File

@ -72,11 +72,11 @@ static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up)
spin_lock_irqsave(&bebob->lock, flags);
if (up)
amdtp_stream_midi_trigger(&bebob->tx_stream,
substrm->number, substrm);
amdtp_am824_midi_trigger(&bebob->tx_stream,
substrm->number, substrm);
else
amdtp_stream_midi_trigger(&bebob->tx_stream,
substrm->number, NULL);
amdtp_am824_midi_trigger(&bebob->tx_stream,
substrm->number, NULL);
spin_unlock_irqrestore(&bebob->lock, flags);
}
@ -89,11 +89,11 @@ static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up)
spin_lock_irqsave(&bebob->lock, flags);
if (up)
amdtp_stream_midi_trigger(&bebob->rx_stream,
substrm->number, substrm);
amdtp_am824_midi_trigger(&bebob->rx_stream,
substrm->number, substrm);
else
amdtp_stream_midi_trigger(&bebob->rx_stream,
substrm->number, NULL);
amdtp_am824_midi_trigger(&bebob->rx_stream,
substrm->number, NULL);
spin_unlock_irqrestore(&bebob->lock, flags);
}

12
sound/firewire/dice/dice-midi.c
View File

@ -52,10 +52,10 @@ static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up)
spin_lock_irqsave(&dice->lock, flags);
if (up)
amdtp_stream_midi_trigger(&dice->tx_stream,
amdtp_am824_midi_trigger(&dice->tx_stream,
substrm->number, substrm);
else
amdtp_stream_midi_trigger(&dice->tx_stream,
amdtp_am824_midi_trigger(&dice->tx_stream,
substrm->number, NULL);
spin_unlock_irqrestore(&dice->lock, flags);
@ -69,11 +69,11 @@ static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up)
spin_lock_irqsave(&dice->lock, flags);
if (up)
amdtp_stream_midi_trigger(&dice->rx_stream,
substrm->number, substrm);
amdtp_am824_midi_trigger(&dice->rx_stream,
substrm->number, substrm);
else
amdtp_stream_midi_trigger(&dice->rx_stream,
substrm->number, NULL);
amdtp_am824_midi_trigger(&dice->rx_stream,
substrm->number, NULL);
spin_unlock_irqrestore(&dice->lock, flags);
}

12
sound/firewire/fireworks/fireworks_midi.c
View File

@ -73,10 +73,10 @@ static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up)
spin_lock_irqsave(&efw->lock, flags);
if (up)
amdtp_stream_midi_trigger(&efw->tx_stream,
amdtp_am824_midi_trigger(&efw->tx_stream,
substrm->number, substrm);
else
amdtp_stream_midi_trigger(&efw->tx_stream,
amdtp_am824_midi_trigger(&efw->tx_stream,
substrm->number, NULL);
spin_unlock_irqrestore(&efw->lock, flags);
@ -90,11 +90,11 @@ static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up)
spin_lock_irqsave(&efw->lock, flags);
if (up)
amdtp_stream_midi_trigger(&efw->rx_stream,
substrm->number, substrm);
amdtp_am824_midi_trigger(&efw->rx_stream,
substrm->number, substrm);
else
amdtp_stream_midi_trigger(&efw->rx_stream,
substrm->number, NULL);
amdtp_am824_midi_trigger(&efw->rx_stream,
substrm->number, NULL);
spin_unlock_irqrestore(&efw->lock, flags);
}

16
sound/firewire/oxfw/oxfw-midi.c
View File

@ -90,11 +90,11 @@ static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up)
spin_lock_irqsave(&oxfw->lock, flags);
if (up)
amdtp_stream_midi_trigger(&oxfw->tx_stream,
substrm->number, substrm);
amdtp_am824_midi_trigger(&oxfw->tx_stream,
substrm->number, substrm);
else
amdtp_stream_midi_trigger(&oxfw->tx_stream,
substrm->number, NULL);
amdtp_am824_midi_trigger(&oxfw->tx_stream,
substrm->number, NULL);
spin_unlock_irqrestore(&oxfw->lock, flags);
}
@ -107,11 +107,11 @@ static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up)
spin_lock_irqsave(&oxfw->lock, flags);
if (up)
amdtp_stream_midi_trigger(&oxfw->rx_stream,
substrm->number, substrm);
amdtp_am824_midi_trigger(&oxfw->rx_stream,
substrm->number, substrm);
else
amdtp_stream_midi_trigger(&oxfw->rx_stream,
substrm->number, NULL);
amdtp_am824_midi_trigger(&oxfw->rx_stream,
substrm->number, NULL);
spin_unlock_irqrestore(&oxfw->lock, flags);
}