[ALSA] add more sequencer port type information bits

Add four new information flags SNDRV_SEQ_PORT_TYPE_HARDWARE, _SOFTWARE,
_SYNTHESIZER, _PORT for sequencer ports.  This makes it easier for apps
like Rosegarden to make policy decisions based on the port type.
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>

include/sound/asequencer.h

@@ -605,6 +605,10 @@ struct snd_seq_remove_events {
 #define SNDRV_SEQ_PORT_TYPE_DIRECT_SAMPLE (1<<11)	/* Sampling device (support sample download) */
 #define SNDRV_SEQ_PORT_TYPE_SAMPLE	(1<<12)	/* Sampling device (sample can be downloaded at any time) */
 /*...*/
+#define SNDRV_SEQ_PORT_TYPE_HARDWARE	(1<<16)	/* driver for a hardware device */
+#define SNDRV_SEQ_PORT_TYPE_SOFTWARE	(1<<17)	/* implemented in software */
+#define SNDRV_SEQ_PORT_TYPE_SYNTHESIZER	(1<<18)	/* generates sound */
+#define SNDRV_SEQ_PORT_TYPE_PORT	(1<<19)	/* connects to other device(s) */
 #define SNDRV_SEQ_PORT_TYPE_APPLICATION	(1<<20)	/* application (sequencer/editor) */
 
 /* misc. conditioning flags */

sound/core/seq/seq_dummy.c

@@ -171,7 +171,9 @@ create_port(int idx, int type)
 	pinfo.capability |= SNDRV_SEQ_PORT_CAP_WRITE | SNDRV_SEQ_PORT_CAP_SUBS_WRITE;
 	if (duplex)
 		pinfo.capability |= SNDRV_SEQ_PORT_CAP_DUPLEX;
-	pinfo.type = SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC;
+	pinfo.type = SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC
+		| SNDRV_SEQ_PORT_TYPE_SOFTWARE
+		| SNDRV_SEQ_PORT_TYPE_PORT;
 	memset(&pcb, 0, sizeof(pcb));
 	pcb.owner = THIS_MODULE;
 	pcb.unuse = dummy_unuse;

sound/core/seq/seq_midi.c

@@ -376,7 +376,9 @@ snd_seq_midisynth_register_port(struct snd_seq_device *dev)
 		if ((port->capability & (SNDRV_SEQ_PORT_CAP_WRITE|SNDRV_SEQ_PORT_CAP_READ)) == (SNDRV_SEQ_PORT_CAP_WRITE|SNDRV_SEQ_PORT_CAP_READ) &&
 		    info->flags & SNDRV_RAWMIDI_INFO_DUPLEX)
 			port->capability |= SNDRV_SEQ_PORT_CAP_DUPLEX;
-		port->type = SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC;
+		port->type = SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC
+			| SNDRV_SEQ_PORT_TYPE_HARDWARE
+			| SNDRV_SEQ_PORT_TYPE_PORT;
 		port->midi_channels = 16;
 		memset(&pcallbacks, 0, sizeof(pcallbacks));
 		pcallbacks.owner = THIS_MODULE;

sound/core/seq/seq_virmidi.c

@@ -390,7 +390,9 @@ static int snd_virmidi_dev_attach_seq(struct snd_virmidi_dev *rdev)
 	pinfo->capability |= SNDRV_SEQ_PORT_CAP_WRITE | SNDRV_SEQ_PORT_CAP_SYNC_WRITE | SNDRV_SEQ_PORT_CAP_SUBS_WRITE;
 	pinfo->capability |= SNDRV_SEQ_PORT_CAP_READ | SNDRV_SEQ_PORT_CAP_SYNC_READ | SNDRV_SEQ_PORT_CAP_SUBS_READ;
 	pinfo->capability |= SNDRV_SEQ_PORT_CAP_DUPLEX;
-	pinfo->type = SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC;
+	pinfo->type = SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC
+		| SNDRV_SEQ_PORT_TYPE_SOFTWARE
+		| SNDRV_SEQ_PORT_TYPE_PORT;
 	pinfo->midi_channels = 16;
 	memset(&pcallbacks, 0, sizeof(pcallbacks));
 	pcallbacks.owner = THIS_MODULE;

sound/drivers/opl3/opl3_oss.c

@@ -99,7 +99,9 @@ static int snd_opl3_oss_create_port(struct snd_opl3 * opl3)
 	opl3->oss_chset->port = snd_seq_event_port_attach(opl3->seq_client, &callbacks,
 							  SNDRV_SEQ_PORT_CAP_WRITE,
 							  SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC |
-							  SNDRV_SEQ_PORT_TYPE_MIDI_GM,
+							  SNDRV_SEQ_PORT_TYPE_MIDI_GM |
+							  SNDRV_SEQ_PORT_TYPE_HARDWARE |
+							  SNDRV_SEQ_PORT_TYPE_SYNTHESIZER,
 							  voices, voices,
 							  name);
 	if (opl3->oss_chset->port < 0) {

sound/drivers/opl3/opl3_seq.c

@@ -203,7 +203,9 @@ static int snd_opl3_synth_create_port(struct snd_opl3 * opl3)
 						      SNDRV_SEQ_PORT_CAP_SUBS_WRITE,
 						      SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC |
 						      SNDRV_SEQ_PORT_TYPE_MIDI_GM |
-						      SNDRV_SEQ_PORT_TYPE_DIRECT_SAMPLE,
+						      SNDRV_SEQ_PORT_TYPE_DIRECT_SAMPLE |
+						      SNDRV_SEQ_PORT_TYPE_HARDWARE |
+						      SNDRV_SEQ_PORT_TYPE_SYNTHESIZER,
 						      16, voices,
 						      name);
 	if (opl3->chset->port < 0) {

sound/drivers/opl4/opl4_seq.c

@@ -164,7 +164,9 @@ static int snd_opl4_seq_new_device(struct snd_seq_device *dev)
 						      SNDRV_SEQ_PORT_CAP_WRITE |
 						      SNDRV_SEQ_PORT_CAP_SUBS_WRITE,
 						      SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC |
-						      SNDRV_SEQ_PORT_TYPE_MIDI_GM,
+						      SNDRV_SEQ_PORT_TYPE_MIDI_GM |
+						      SNDRV_SEQ_PORT_TYPE_HARDWARE |
+						      SNDRV_SEQ_PORT_TYPE_SYNTHESIZER,
 						      16, 24,
 						      "OPL4 Wavetable Port");
 	if (opl4->chset->port < 0) {

sound/isa/gus/gus_synth.c

@@ -194,7 +194,9 @@ static int snd_gus_synth_create_port(struct snd_gus_card * gus, int idx)
 						   &callbacks,
 						   SNDRV_SEQ_PORT_CAP_WRITE | SNDRV_SEQ_PORT_CAP_SUBS_WRITE,
 						   SNDRV_SEQ_PORT_TYPE_DIRECT_SAMPLE |
-						   SNDRV_SEQ_PORT_TYPE_SYNTH,
+						   SNDRV_SEQ_PORT_TYPE_SYNTH |
+						   SNDRV_SEQ_PORT_TYPE_HARDWARE |
+						   SNDRV_SEQ_PORT_TYPE_SYNTHESIZER,
 						   16, 0,
 						   name);
 	if (p->chset->port < 0) {

sound/pci/trident/trident_synth.c

@@ -914,7 +914,9 @@ static int snd_trident_synth_create_port(struct snd_trident * trident, int idx)
 						   &callbacks,
 						   SNDRV_SEQ_PORT_CAP_WRITE | SNDRV_SEQ_PORT_CAP_SUBS_WRITE,
 						   SNDRV_SEQ_PORT_TYPE_DIRECT_SAMPLE |
-						   SNDRV_SEQ_PORT_TYPE_SYNTH,
+						   SNDRV_SEQ_PORT_TYPE_SYNTH |
+						   SNDRV_SEQ_PORT_TYPE_HARDWARE |
+						   SNDRV_SEQ_PORT_TYPE_SYNTHESIZER,
 						   16, 0,
 						   name);
 	if (p->chset->port < 0) {

sound/synth/emux/emux_seq.c

@@ -54,7 +54,9 @@ static struct snd_midi_op emux_ops = {
 #define DEFAULT_MIDI_TYPE	(SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC |\
 				 SNDRV_SEQ_PORT_TYPE_MIDI_GM |\
 				 SNDRV_SEQ_PORT_TYPE_MIDI_GS |\
-				 SNDRV_SEQ_PORT_TYPE_MIDI_XG)
+				 SNDRV_SEQ_PORT_TYPE_MIDI_XG |\
+				 SNDRV_SEQ_PORT_TYPE_HARDWARE |\
+				 SNDRV_SEQ_PORT_TYPE_SYNTHESIZER)
 
 /*
  * Initialise the EMUX Synth by creating a client and registering