[hal] Add a unified PCM object (#3331)

wpilibc/src/main/native/include/frc/PneumaticsBase.h

@@ -0,0 +1,28 @@
+// Copyright (c) FIRST and other WPILib contributors.
+// Open Source Software; you can modify and/or share it under the terms of
+// the WPILib BSD license file in the root directory of this project.
+
+#pragma once
+
+#include <units/time.h>
+
+namespace frc {
+class PneumaticsBase {
+ public:
+  virtual ~PneumaticsBase() = default;
+
+  virtual void SetSolenoids(int mask, int values) = 0;
+
+  virtual int GetSolenoids() const = 0;
+
+  virtual int GetModuleNumber() const = 0;
+
+  virtual int GetSolenoidDisabledList() const = 0;
+
+  virtual void FireOneShot(int index) = 0;
+
+  virtual void SetOneShotDuration(int index, units::second_t duration) = 0;
+
+  virtual bool CheckSolenoidChannel(int channel) const = 0;
+};
+}  // namespace frc