src/ria_toolkit_oss/sdr/pluto.py

@@ -17,7 +17,7 @@ class Pluto(SDR):
         """
         Initialize a Pluto SDR device object and connect to the SDR hardware.
 
-        This software supports the ADALAM Pluto SDR created by Analog Devices.
+        This software supports the ADALM Pluto SDR created by Analog Devices.
 
         :param identifier: The value of the parameter that identifies the device.
         :type identifier: str = "192.168.3.1", "pluto.local", etc
@@ -34,8 +34,24 @@ class Pluto(SDR):
             else:
                 uri = f"ip:{identifier}"
 
-            self.radio = adi.ad9361(uri)
-            print(f"Successfully found Pluto radio with identifier [{identifier}].")
+            # Detect MIMO capability by checking IIO channels (one-time, during init)
+            # Rev B: 2 channels (voltage0, voltage1) - single RX/TX only
+            # Rev C/D: 4 channels (voltage0-3) - dual RX/TX capable
+            test_radio = adi.ad9361(uri)
+            ctx = test_radio.ctx
+            dev = ctx.find_device("cf-ad9361-lpc")
+
+            if dev and len(dev.channels) >= 4:
+                # MIMO-capable hardware (Rev C/D)
+                self.radio = test_radio
+                self._mimo_capable = True
+                print(f"Successfully found MIMO-capable Pluto (Rev C/D) with identifier [{identifier}].")
+            else:
+                # Non-MIMO hardware (Rev B) - use standard Pluto driver
+                self.radio = adi.Pluto(uri)
+                self._mimo_capable = False
+                print(f"Successfully found Pluto (Rev B) with identifier [{identifier}].")
+
         except Exception as e:
             print(f"Failed to find Pluto radio with identifier [{identifier}].")
             raise e
@@ -74,6 +90,11 @@ class Pluto(SDR):
             self.radio.rx_enabled_channels = [0]
             print(f"Pluto channel(s) = {self.radio.rx_enabled_channels}")
         elif channel == 1:
+            if not self._mimo_capable:
+                raise ValueError(
+                    "Dual RX channel requested (channel=1) but hardware is not MIMO-capable. "
+                    "Dual RX/TX requires Pluto Rev C/D. Detected hardware: Rev B (single channel only)."
+                )
             self.radio.rx_enabled_channels = [0, 1]
             print(f"Pluto channel(s) = {self.radio.rx_enabled_channels}")
         else:
@@ -142,6 +163,11 @@ class Pluto(SDR):
         print(f"Pluto center frequency = {self.radio.tx_lo}")
 
         if channel == 1:
+            if not self._mimo_capable:
+                raise ValueError(
+                    "Dual TX channel requested (channel=1) but hardware is not MIMO-capable. "
+                    "Dual RX/TX requires Pluto Rev C/D. Detected hardware: Rev B (single channel only)."
+                )
             self.radio.tx_enabled_channels = [0, 1]
             print(f"Pluto channel(s) = {self.radio.tx_enabled_channels}")
         elif channel == 0: