Add a device tree reader for ip-devices

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

@@ -24,11 +24,14 @@ class IpDevice : public PlatformDevice {
   IpDevice() = delete;
   IpDevice(
       const std::filesystem::path valid_path) //! Dont allow unvalidated paths
-      : PlatformDevice(valid_path) {};
+      : PlatformDevice(valid_path){};
 
 public:
   size_t addr() const;
   std::string ip_name() const;
+
+  static std::vector<villas::kernel::devices::IpDevice>
+  from_directory(std::filesystem::path devices_directory);
 };
 
 } // namespace devices

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

@@ -29,13 +29,13 @@ class PlatformDevice : public Device {
 public:
   PlatformDevice(const std::filesystem::path path)
       : PlatformDevice(path, std::filesystem::path(PROBE_DEFAULT),
-                       path / std::filesystem::path(OVERRIDE_DEFAULT)) {};
+                       path / std::filesystem::path(OVERRIDE_DEFAULT)){};
 
   PlatformDevice(const std::filesystem::path path,
                  const std::filesystem::path probe_path,
                  const std::filesystem::path override_path)
       : m_path(path), m_probe_path(probe_path),
-        m_override_path(override_path) {};
+        m_override_path(override_path){};
 
   // Implement device interface
   std::optional<std::unique_ptr<Driver>> driver() const override;

common/lib/kernel/devices/ip_device.cpp

@@ -12,6 +12,7 @@
 
 #include <villas/exceptions.hpp>
 #include <villas/kernel/devices/ip_device.hpp>
+#include <villas/utils.hpp>
 
 using villas::kernel::devices::IpDevice;
 
@@ -52,3 +53,22 @@ bool IpDevice::is_path_valid(const std::filesystem::path unsafe_path) {
 
   return true;
 }
+
+std::vector<villas::kernel::devices::IpDevice>
+IpDevice::from_directory(std::filesystem::path devices_directory) {
+    std::vector<villas::kernel::devices::IpDevice> devices;
+
+    const std::vector<std::string> devicetree_names =
+        villas::utils::read_names_in_directory(devices_directory);
+
+    for (auto devicetree_name : devicetree_names) {
+      auto path_to_device =
+          devices_directory / std::filesystem::path(devicetree_name);
+      try {
+        auto device = villas::kernel::devices::IpDevice::from(path_to_device);
+        devices.push_back(device);
+      } catch (std::runtime_error &e) {
+      }
+    }
+    return devices;
+  }