mixer.py: add basic MIDI handling + get_system_state command

mixer.py

@@ -1,7 +1,106 @@
 #!/bin/python
 
+import argparse
+import socket
+import mido
+
+from enum import Enum
+
+MIXER_PORT = 51325
+
+class Mixer:
+    def __init__(self, ip, port):
+        self.sock = socket.create_connection((ip, port))
+
+    A_H_ID = [0x00, 0x00, 0x1A]
+    QU_MIXER = [0x50, 0x11]
+    MAJOR_MINOR = [0x01, 0x00]
+    ALL_CALL_MIDI_CHANNEL = [0x7F]
+
+    sysex_allcall = A_H_ID + QU_MIXER + MAJOR_MINOR + ALL_CALL_MIDI_CHANNEL
+
+    def recv(self):
+        p = mido.Parser()
+
+        while True:
+            data = self.sock.recv(1024)
+
+            if not data:
+                break
+
+            p.feed(data)
+
+            if p.pending():
+                msg = p.get_message()
+                print(msg)
+                print("Hex:  ", " ".join(f"{b:02X}" for b in msg.data))
+
+                return msg
+
+    def get_system_state(self):
+        id = 0x10
+        i_pad_flag = 0x01
+
+        data = self.sysex_allcall + [id, i_pad_flag]
+        msg = mido.Message('sysex', data=data)
+        msg_bytes = bytes(msg.bytes())
+
+        self.sock.sendall(msg_bytes)
+        print("Sent:", " ".join(f"{b:02X}" for b in msg_bytes))
+
+        response = self.recv()
+
+        class QuModel(Enum):
+            QU16 = 1
+            QU24 = 2
+            QU32 = 3
+            QUPAC = 4
+            QUSB = 5
+
+            def __str__(self):
+                labels = {
+                    1: "Qu-16",
+                    2: "Qu-24",
+                    3: "Qu-32",
+                    4: "Qu-Pac",
+                    5: "Qu-SB",
+                }
+
+                return labels[self.value]
+
+        sysex_header = response.data[:8]
+
+        midi_channel = int(response.data[7])
+        id = int(response.data[8])
+        i_pad_flag = int(response.data[9])
+        major_ver = int(response.data[10])
+        minor_ver = int(response.data[11])
+
+        print(f"sysex_header: {sysex_header}")
+        print(f"MIDI channel: {midi_channel}")
+        print(f"ID: 0x{id:02X}")
+        print(f"Model: {QuModel(i_pad_flag)}")
+        print(f"Firmware Version: {major_ver}.{minor_ver}")
+
 def main():
-    pass
+    parser = argparse.ArgumentParser(description="Allen & Heath Qu Remote Control")
+    parser.add_argument("ip", help="IP of the mixer")
+    parser.add_argument("command", help="Command to execute")
+
+    args = parser.parse_args()
+
+    if not args.ip:
+        print("ip is missing!")
+        return 1
+
+    print(f"IP: {args.ip}")
+
+    if args.command:
+        print(f"Command: {args.command}")
+
+        if args.command == 'get_system_state':
+            mixer = Mixer(args.ip, MIXER_PORT)
+            mixer.get_system_state()
 
 if __name__ == '__main__':
     main()