2 files changed, 12 insertions, 0 deletions
diff --git a/mubios/include/bios.h b/mubios/include/bios.h
index eee22e8..7d2d447 100644
--- a/mubios/include/bios.h
+++ b/mubios/include/bios.h
@@ -50,4 +50,6 @@ void ioapic_init (void);
 
 void ivt_init (void);
 
+u8 ata_read_sector28 (u32 lba, u16 *buffer);
+
 #endif // MUBIOS_BIOS_H
diff --git a/mubios/include/io.h b/mubios/include/io.h
index 8b50508..cedd1c1 100644
--- a/mubios/include/io.h
+++ b/mubios/include/io.h
@@ -40,4 +40,14 @@ io_in8 (u16 port)
   return value;
 }
 
+static inline u16
+io_in16 (u16 port)
+{
+  u16 value;
+
+  __asm__ volatile ("inw %1, %0" : "=a"(value) : "dN"(port));
+
+  return value;
+}
+
 #endif // MUBIOS_IO_H