1 files changed, 33 insertions, 0 deletions
diff --git a/kernel/devices/include/devices/block_device.hpp b/kernel/devices/include/devices/block_device.hpp
new file mode 100644
index 00000000..d1e42491
--- /dev/null
+++ b/kernel/devices/include/devices/block_device.hpp
@@ -0,0 +1,33 @@
+#ifndef TEACH_OS_KERNEL_DEVICES_BLOCK_DEVICE_HPP
+#define TEACH_OS_KERNEL_DEVICES_BLOCK_DEVICE_HPP
+
+#include "devices/temp_device.hpp"
+
+#include <cstddef>
+
+namespace devices
+{
+  struct block_device : device
+  {
+    block_device(size_t major, size_t minor, size_t block_size);
+    virtual ~block_device() = default;
+
+    virtual auto read_block(size_t block_index, void * buffer) const -> void = 0;
+    virtual auto write_block(size_t block_index, void const * buffer) -> void = 0;
+
+  protected:
+    struct transfer_info
+    {
+      size_t offset;
+      size_t to_transfer;
+      size_t remainder;
+    };
+
+    virtual auto size() const -> size_t = 0;
+    auto calculate_transfer(size_t block_index) const -> transfer_info;
+
+    size_t m_block_size;
+  };
+}  // namespace devices
+
+#endif
+\ No newline at end of file