Merge branch 'tidy-up-folder-structure' into 'develop-BA-FS26'

rename files to snake_case (temp_device part1 -> renamed to device later, due...

See merge request teachos/kernel!12

1 files changed, 85 insertions, 0 deletions

diff --git a/kernel/src/devices/storage/storage_management.cpp b/kernel/src/devices/storage/storage_management.cpp
new file mode 100644
index 0000000..56216b0
--- /dev/null
+++ b/kernel/src/devices/storage/storage_management.cpp
@@ -0,0 +1,85 @@
+#include "kernel/devices/storage/storage_management.hpp"
+
+#include "kapi/boot_modules.hpp"
+#include "kapi/system.hpp"
+
+#include "kernel/devices/device.hpp"
+#include "kernel/devices/storage/ram_disk/ram_disk_controller.hpp"
+#include "kernel/devices/storage/storage_controller.hpp"
+
+#include <kstd/memory>
+#include <kstd/vector>
+
+#include <algorithm>
+#include <cstddef>
+#include <optional>
+
+namespace devices::storage
+{
+  namespace
+  {
+    constexpr size_t static MINORS_PER_DEVICE = 16;
+    constexpr size_t static START_MAJOR = 1;
+    constinit size_t static next_free_major = START_MAJOR;
+
+    constinit auto static active_storage_management = std::optional<storage_management>{};
+  }  // namespace
+
+  auto storage_management::init() -> void
+  {
+    if (active_storage_management)
+    {
+      kapi::system::panic("[DEVICES] Storage management has already been initialized.");
+    }
+    active_storage_management.emplace(storage_management{});
+
+    auto current_ram_disk_controller =
+        kstd::make_shared<ram_disk::ram_disk_controller>(&kapi::boot_modules::get_boot_module_registry());
+    active_storage_management->add_controller(current_ram_disk_controller);
+
+    std::ranges::for_each(active_storage_management->m_controllers, [](auto controller) { controller->probe(); });
+  }
+
+  auto storage_management::get() -> storage_management &
+  {
+    if (!active_storage_management)
+    {
+      kapi::system::panic("[DEVICES] Storage management has not been initialized.");
+    }
+
+    return *active_storage_management;
+  }
+
+  auto storage_management::add_controller(kstd::shared_ptr<storage_controller> const & controller) -> void
+  {
+    controller->set_ids(next_free_major++, MINORS_PER_DEVICE);
+    m_controllers.push_back(controller);
+  }
+
+  auto storage_management::all_controllers() const -> kstd::vector<kstd::shared_ptr<storage_controller>> const &
+  {
+    return m_controllers;
+  }
+
+  auto storage_management::device_by_major_minor(size_t major, size_t minor) -> kstd::shared_ptr<device>
+  {
+    kstd::shared_ptr<device> found = nullptr;
+
+    std::ranges::find_if(m_controllers, [&](auto const & controller) {
+      if (controller != nullptr && controller->major() == major)
+      {
+        found = controller->device_by_minor(minor);
+        return found != nullptr;
+      }
+      return false;
+    });
+
+    return found;
+  }
+
+  auto storage_management::determine_boot_device() -> kstd::shared_ptr<device>
+  {
+    return device_by_major_minor(START_MAJOR, 0);
+  }
+
+}  // namespace devices::storage
\ No newline at end of file