implement read and write bytes from device

1 files changed, 18 insertions, 1 deletions

diff --git a/kernel/devices/src/block_device.cpp b/kernel/devices/src/block_device.cpp
index dd63638..2f0c2ca 100644
--- a/kernel/devices/src/block_device.cpp
+++ b/kernel/devices/src/block_device.cpp
@@ -1,5 +1,7 @@
 #include "devices/block_device.hpp"
 
+#include "kapi/system.hpp"
+
 #include "devices/device.hpp"
 
 #include <cstddef>
@@ -9,7 +11,12 @@ namespace devices
   block_device::block_device(size_t major, size_t minor, size_t block_size)
       : device(major, minor)
       , m_block_size(block_size)
-  {}
+  {
+    if (m_block_size == 0)
+    {
+      kapi::system::panic("[DEVICES] block_device constructed with zero block size.");
+    }
+  }
 
   auto block_device::calculate_transfer(size_t block_index) const -> transfer_info
   {
@@ -21,4 +28,14 @@ namespace devices
 
     return {offset, to_transfer, m_block_size - to_transfer};
   }
+
+  auto block_device::block_size() const -> size_t
+  {
+    return m_block_size;
+  }
+
+  auto block_device::capacity() const -> size_t
+  {
+    return size();
+  }
 }  // namespace devices
\ No newline at end of file