add a hack to deal with device discovery race, in which the devices were not actually known to be ready before the last update_surfaces() call (which is where binding between strips and routes occurs) ; add support for Mackie Control touch on/off messages

libs/surfaces/mackie/mackie_control_protocol.cc

@@ -344,7 +344,9 @@ MackieControlProtocol::switch_banks (uint32_t initial, bool force)
 
 	if (_current_initial_bank <= sorted.size()) {
 
-		DEBUG_TRACE (DEBUG::MackieControl, string_compose ("switch to %1, %2, available routes %3\n", _current_initial_bank, strip_cnt, sorted.size()));
+		DEBUG_TRACE (DEBUG::MackieControl, string_compose ("switch to %1, %2, available routes %3 on %4 surfaces\n", 
+								   _current_initial_bank, strip_cnt, sorted.size(),
+								   surfaces.size()));
 
 		// link routes to strips
 
@@ -520,11 +522,23 @@ MackieControlProtocol::update_global_led (int id, LedState ls)
 	}
 }
 
+void
+MackieControlProtocol::device_ready ()
+{
+	/* this is not required to be called, but for devices which do
+	 * handshaking, it can be called once the device has verified the
+	 * connection.
+	 */
+	 
+	DEBUG_TRACE (DEBUG::MackieControl, string_compose ("device ready init (active=%1)\n", active()));
+	update_surfaces ();
+}
+
 // send messages to surface to set controls to correct values
 void 
 MackieControlProtocol::update_surfaces()
 {
-	DEBUG_TRACE (DEBUG::MackieControl, "MackieControlProtocol::update_surfaces() init\n");
+	DEBUG_TRACE (DEBUG::MackieControl, string_compose ("MackieControlProtocol::update_surfaces() init (active=%1)\n", active()));
 	if (!active()) {
 		return;
 	}

libs/surfaces/mackie/mackie_control_protocol.h

@@ -120,6 +120,8 @@ class MackieControlProtocol
 	const Mackie::DeviceInfo& device_info() const { return _device_info; }
 	Mackie::DeviceProfile& device_profile() { return _device_profile; }
 
+        void device_ready ();
+
 	int set_active (bool yn);
 	int  set_device (const std::string&);
         void set_profile (const std::string&);

libs/surfaces/mackie/strip.cc

@@ -626,13 +626,22 @@ Strip::do_parameter_display (AutomationType type, float val)
 	}
 }
 
+void
+Strip::handle_fader_touch (Fader& fader, bool touch_on)
+{
+	if (touch_on) {
+		fader.start_touch (_surface->mcp().transport_frame());
+	} else {
+		fader.stop_touch (_surface->mcp().transport_frame(), false);
+	}
+}
+
 void
 Strip::handle_fader (Fader& fader, float position)
 {
 	DEBUG_TRACE (DEBUG::MackieControl, string_compose ("fader to %1\n", position));
 
 	fader.set_value (position);
-	fader.start_touch (_surface->mcp().transport_frame());
 	queue_display_reset (2000);
 
 	// must echo bytes back to slider now, because

libs/surfaces/mackie/strip.h

@@ -61,6 +61,7 @@ public:
 
 	void handle_button (Button&, ButtonState bs);
 	void handle_fader (Fader&, float position);
+	void handle_fader_touch (Fader&, bool touch_on);
 	void handle_pot (Pot&, float delta);
 
 	void periodic (uint64_t now_usecs);

libs/surfaces/mackie/surface.cc

@@ -369,7 +369,7 @@ Surface::connect_to_signals ()
 		p->controller.connect_same_thread (*this, boost::bind (&Surface::handle_midi_controller_message, this, _1, _2));
 		/* Button messages are NoteOn */
 		p->note_on.connect_same_thread (*this, boost::bind (&Surface::handle_midi_note_on_message, this, _1, _2));
-		/* Button messages are NoteOn. libmidi++ sends note-on w/velocity = 0 as note-off so catch them too */
+		/* Button messages are NoteOn but libmidi++ sends note-on w/velocity = 0 as note-off so catch them too */
 		p->note_off.connect_same_thread (*this, boost::bind (&Surface::handle_midi_note_on_message, this, _1, _2));
 		/* Fader messages are Pitchbend */
 		uint32_t i;
@@ -386,7 +386,7 @@ Surface::connect_to_signals ()
 void
 Surface::handle_midi_pitchbend_message (MIDI::Parser&, MIDI::pitchbend_t pb, uint32_t fader_id)
 {
-	/* Pitchbend messages are fader messages. Nothing in the data we get
+	/* Pitchbend messages are fader position messages. Nothing in the data we get
 	 * from the MIDI::Parser conveys the fader ID, which was given by the
 	 * channel ID in the status byte.
 	 *
@@ -394,7 +394,6 @@ Surface::handle_midi_pitchbend_message (MIDI::Parser&, MIDI::pitchbend_t pb, uin
 	 * when we connected to the per-channel pitchbend events.
 	 */
 
-
 	DEBUG_TRACE (DEBUG::MackieControl, string_compose ("Surface::handle_midi_pitchbend_message on port %3, fader = %1 value = %2\n",
 							   fader_id, pb, _number));
 	
@@ -429,6 +428,28 @@ Surface::handle_midi_note_on_message (MIDI::Parser &, MIDI::EventTwoBytes* ev)
 		turn_it_on ();
 	}
 
+	/* fader touch sense is given by "buttons" 0xe..0xe7 and 0xe8 for the
+	 * master. 
+	 */
+
+	if (ev->note_number >= 0xE0 && ev->note_number <= 0xE8) {
+		Fader* fader = faders[ev->note_number];
+
+		DEBUG_TRACE (DEBUG::MackieControl, string_compose ("Surface: fader touch message, fader = %1\n", fader));
+
+		if (fader) {
+
+			Strip* strip = dynamic_cast<Strip*> (&fader->group());
+
+			if (ev->velocity > 64) {
+				strip->handle_fader_touch (*fader, true);
+			} else {
+				strip->handle_fader_touch (*fader, false);
+			}
+		}
+		return;
+	}
+
 	Button* button = buttons[ev->note_number];
 
 	if (button) {
@@ -516,8 +537,10 @@ Surface::handle_midi_sysex (MIDI::Parser &, MIDI::byte * raw_bytes, size_t count
 		   LCP: Connection Challenge 
 		*/
 		if (bytes[4] == 0x10 || bytes[4] == 0x11) {
+			DEBUG_TRACE (DEBUG::MackieControl, "Logic Control Device connection challenge\n");
 			write_sysex (host_connection_query (bytes));
 		} else {
+			DEBUG_TRACE (DEBUG::MackieControl, string_compose ("Mackie Control Device ready, current status = %1\n", _active));
 			if (!_active) {
 				turn_it_on ();
 			}
@@ -525,6 +548,7 @@ Surface::handle_midi_sysex (MIDI::Parser &, MIDI::byte * raw_bytes, size_t count
 		break;
 
 	case 0x03: /* LCP Connection Confirmation */
+		DEBUG_TRACE (DEBUG::MackieControl, "Logic Control Device confirms connection, ardour replies\n");
 		if (bytes[4] == 0x10 || bytes[4] == 0x11) {
 			write_sysex (host_connection_confirmation (bytes));
 			_active = true;
@@ -532,6 +556,7 @@ Surface::handle_midi_sysex (MIDI::Parser &, MIDI::byte * raw_bytes, size_t count
 		break;
 
 	case 0x04: /* LCP: Confirmation Denied */
+		DEBUG_TRACE (DEBUG::MackieControl, "Logic Control Device denies connection\n");
 		_active = false;
 		break;
 	default:
@@ -610,6 +635,8 @@ Surface::turn_it_on ()
 
 	_active = true;
 
+	_mcp.device_ready ();
+
 	for (Strips::iterator s = strips.begin(); s != strips.end(); ++s) {
 		(*s)->notify_all ();
 	}
@@ -739,6 +766,8 @@ Surface::map_routes (const vector<boost::shared_ptr<Route> >& routes)
 	vector<boost::shared_ptr<Route> >::const_iterator r;
 	Strips::iterator s = strips.begin();
 
+	DEBUG_TRACE (DEBUG::MackieControl, string_compose ("Mapping %1 routes", routes.size()));
+
 	for (r = routes.begin(); r != routes.end() && s != strips.end(); ++s) {
 
 		/* don't try to assign routes to a locked strip. it won't