initial commit

Signed-off-by: Pascal Bauer <pascal.bauer@rwth-aachen.de>

common/include/villas/kernel/devices/platform_driver.hpp

@@ -0,0 +1,53 @@
+/* PlatformDriver
+ *
+ * Author: Pascal Bauer <pascal.bauer@rwth-aachen.de>
+ *
+ * SPDX-FileCopyrightText: 2023-2024 Pascal Bauer <pascal.bauer@rwth-aachen.de>
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#pragma once
+
+#include <fstream>
+#include <iostream>
+
+namespace villas {
+namespace kernel {
+namespace devices {
+
+class PlatformDevice;
+
+class PlatformDriver {
+private:
+  static constexpr char BIND_DEFAULT[] = "bind";
+  static constexpr char UNBIND_DEFAULT[] = "unbind";
+
+public:
+  const std::filesystem::path path;
+
+private:
+  const std::filesystem::path bind_path;
+  const std::filesystem::path unbind_path;
+
+public:
+  PlatformDriver(const std::filesystem::path path)
+      : PlatformDriver(path, path / std::filesystem::path(BIND_DEFAULT),
+                       path / std::filesystem::path(UNBIND_DEFAULT)){};
+
+  PlatformDriver(const std::filesystem::path path,
+                 const std::filesystem::path bind_path,
+                 const std::filesystem::path unbind_path)
+      : path(path), bind_path(bind_path), unbind_path(unbind_path){};
+
+  std::string name() const;
+  void attach(const PlatformDevice &device) const;
+
+private:
+  void bind(const PlatformDevice &device) const;
+  void unbind(const PlatformDevice &device) const;
+  void override(const PlatformDevice &device) const;
+};
+
+} // namespace devices
+} // namespace kernel
+} // namespace villas

common/lib/kernel/devices/platform_driver.cpp

@@ -0,0 +1,39 @@
+/* PlatformDriver
+ *
+ * Author: Pascal Bauer <pascal.bauer@rwth-aachen.de>
+ *
+ * SPDX-FileCopyrightText: 2023-2024 Pascal Bauer <pascal.bauer@rwth-aachen.de>
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <villas/kernel/devices/platform_device.hpp>
+#include <villas/kernel/devices/utils.hpp>
+
+using villas::kernel::devices::PlatformDevice,
+    villas::kernel::devices::PlatformDriver;
+using villas::kernel::devices::utils::write_to_file;
+
+std::string PlatformDriver::name() const {
+  size_t pos = path.u8string().rfind('/');
+  return path.u8string().substr(pos + 1);
+}
+
+void PlatformDriver::bind(const PlatformDevice &device) const {
+  write_to_file(device.name(), this->bind_path);
+};
+
+void PlatformDriver::unbind(const PlatformDevice &device) const {
+  write_to_file(device.name(), this->unbind_path);
+};
+
+void PlatformDriver::override(const PlatformDevice &device) const {
+  write_to_file(this->name(), device.override_path());
+};
+
+void PlatformDriver::attach(const PlatformDevice &device) const {
+  if (device.driver().has_value()) {
+    device.driver().value().unbind(device);
+  }
+  this->override(device);
+  device.probe();
+};