david
dbd7c2cece
midi-bridge.py: - Auto-detect rawmidi device (gadget f_midi > env override > fallback) - Reconnect on ENODEV (device hotplug) - No longer needs MIDI_BRIDGE_DEV env var in common cases start-synth.sh: - Remove all -alsamidi/-midiadddev flags (kernel lacks CONFIG_SND_SEQUENCER) - MIDI handled entirely by midi-bridge.service → UDP → netreceive - Host mode: same approach, no ALSA sequencer needed mpk-mini-sim.pd: - New MPK Mini Mk II simulator (25 keys, 8 pads, 8 CC knobs) - Proper Pd #X obj format for all objects (bng, hsl, t, del, netsend, loadbang) - UDP output to board:8081, matching midi-bridge format system: enable usb-gadget-audio.service at boot, load dwc3 module at boot
121 lines
4.8 KiB
Python
121 lines
4.8 KiB
Python
#!/usr/bin/env python3
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"""Generate mpk-mini-sim.pd — MPK Mini Mk II simulator.
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Architecture: each key/pad has bng→t b b→msg for note-on, del→msg for note-off.
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All msgs connect to a single [netsend -u -b] via send/receive.
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Knobs: hsl→msg→[s $0-cc], central [r $0-cc]→netsend.
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"""
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from pathlib import Path
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SCRIPT_DIR = Path(__file__).resolve().parent
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OUTPUT = SCRIPT_DIR.parent / "pd" / "mpk-mini-sim.pd"
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def connect(c, src, sout, dst, din):
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c.append((src, sout, dst, din))
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def Obj(o, x, y, *args):
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idx = len(o)
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o.append((x, y, *args))
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return idx
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def gen():
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o, c = [], []
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# ── UDP sender (hardcoded IP — edit the msg box to change) ──
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Obj(o, 10, 10, "loadbang")
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Obj(o, 10, 30, "msg", ";")
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msg_conn = Obj(o, 10, 50, "msg", "connect 192.168.9.167 8081;")
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ns = Obj(o, 10, 80, "netsend", "-u", "-b")
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connect(c, msg_conn, 0, ns, 0)
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Obj(o, 200, 30, "text", "← edit this line to change target IP:port")
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instr = Obj(o, 10, 440, "text", "Click keys to play. Knobs send CC on change. IPS (192.168.9.167:8081)")
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instr2 = Obj(o, 10, 460, "text", "MIDI ch: 144=note-on ch1, 128=note-off ch1, 176=CC ch1")
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# ── Keyboard: C3(48) to C5(72) ──
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keys = [
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("C3",48),("C#3",49),("D3",50),("D#3",51),("E3",52),
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("F3",53),("F#3",54),("G3",55),("G#3",56),("A3",57),
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("A#3",58),("B3",59),
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("C4",60),("C#4",61),("D4",62),("D#4",63),("E4",64),
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("F4",65),("F#4",66),("G4",67),("G#4",68),("A4",69),
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("A#4",70),("B4",71),("C5",72),
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]
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Obj(o, 20, 120, "text", "-- KEYBOARD --")
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for i, (name, note) in enumerate(keys):
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x = 30 + (i % 13) * 46
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y = 140 + (i // 13) * 60
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Obj(o, x, y, "text", name)
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b = Obj(o, x, y+14, "bng", 15, 25, 0, 1, 0, 0, "empty", f"k{note}", -2,-8,0,10,-262144,-1,-1)
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trig = Obj(o, x, y+44, "t", "b b")
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msg_on = Obj(o, x, y+64, "msg", f"midi 144 {note} 100;")
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msg_off = Obj(o, x, y+82, "msg", f"midi 128 {note} 0;")
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del300 = Obj(o, x, y+100, "del", 300)
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connect(c, b, 0, trig, 0)
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connect(c, trig, 0, msg_on, 0)
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connect(c, msg_on, 0, ns, 0)
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connect(c, trig, 1, del300, 0)
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connect(c, del300, 0, msg_off, 0)
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connect(c, msg_off, 0, ns, 0)
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# ── Pads (C2-G2, notes 36-43) ──
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pads = [("C2",36),("C#2",37),("D2",38),("D#2",39),("E2",40),("F2",41),("F#2",42),("G2",43)]
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Obj(o, 680, 120, "text", "-- PADS --")
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for i, (name, note) in enumerate(pads):
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x = 680 + (i % 4) * 55
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y = 140 + (i // 4) * 55
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Obj(o, x, y, "text", name)
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b = Obj(o, x, y+14, "bng", 15, 15, 0, 1, 0, 0, "empty", f"p{note}", -2,-8,0,10,-262144,-1,-1)
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trig = Obj(o, x, y+32, "t", "b b")
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msg_on = Obj(o, x, y+52, "msg", f"midi 144 {note} 100;")
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msg_off = Obj(o, x, y+70, "msg", f"midi 128 {note} 0;")
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del200 = Obj(o, x, y+88, "del", 200)
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connect(c, b, 0, trig, 0)
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connect(c, trig, 0, msg_on, 0)
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connect(c, msg_on, 0, ns, 0)
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connect(c, trig, 1, del200, 0)
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connect(c, del200, 0, msg_off, 0)
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connect(c, msg_off, 0, ns, 0)
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# ── Knobs (CC 1, 71-77) ──
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knobs = [(1,"Mod",64),(71,"Reson",64),(72,"Release",64),(73,"Attack",64),
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(74,"Cutoff",100),(75,"Decay",64),(76,"LFO Rate",64),(77,"LFO Depth",64)]
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Obj(o, 20, 280, "text", "-- KNOBS --")
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for i, (cc, name, init) in enumerate(knobs):
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x = 30 + i * 85
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y = 300
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Obj(o, x, y, "text", f"CC{cc} {name}")
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hsl = Obj(o, x, y+15, "hsl", 50, 10, 0, 127, init, 0, 0, "empty", f"cc{cc}", -2,-8,0,10,-262144,-1,-1,7200,1)
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msg = Obj(o, x, y+30, "msg", f"midi 176 {cc} $1;")
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connect(c, hsl, 0, msg, 0)
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connect(c, msg, 0, ns, 0)
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# ── Write (Pd format: #X obj for objects, #X msg/text/floatatom/symbol for others) ──
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lines = ["#N canvas 0 0 950 490 10;"]
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obj_types = {"bng","t","del","netsend","loadbang","hsl","comment"}
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for x, y, *args in o:
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etype = args[0]
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rest = args[1:]
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if etype in obj_types:
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# Pd stores GUI objects as: #X obj x y <name> <args>
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name = etype
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if name == "comment": name = "text" # Pd uses text for comments
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joined = " ".join(str(a) for a in rest)
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lines.append(f"#X obj {x} {y} {name} {joined};")
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else:
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joined = " ".join(str(a) for a in rest)
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lines.append(f"#X {etype} {x} {y} {joined};")
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for src, sout, dst, din in c:
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lines.append(f"#X connect {src} {sout} {dst} {din};")
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lines.append("")
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return "\n".join(lines)
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if __name__ == "__main__":
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content = gen()
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OUTPUT.parent.mkdir(parents=True, exist_ok=True)
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OUTPUT.write_text(content)
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print(f"Wrote {OUTPUT}")
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print(f" {len(content.splitlines())} lines, {content.count('#X obj')} objects, {content.count('#X connect')} connections")
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