Modules/{ATA,LVM} - Slight API change because SCSI devices don't have a fixed block...

[tpg/acess2.git] / KernelLand / Modules / Storage / LVM / lvm.h

diff --git a/KernelLand/Modules/Storage/LVM/lvm.h b/KernelLand/Modules/Storage/LVM/lvm.h
index e69de29..e406a9b 100644 (file)
--- a/KernelLand/Modules/Storage/LVM/lvm.h
+++ b/KernelLand/Modules/Storage/LVM/lvm.h
@@ -0,0 +1,37 @@
+/*
+ * Acess2 Logical Volume Manager
+ * - By John Hodge (thePowersGang)
+ *
+ * lvm.h
+ * - LVM Core definitions
+ */
+#ifndef _LVM_LVM_H_
+#define _LVM_LVM_H_
+
+#include <acess.h>
+
+// === TYPES ===
+typedef struct sLVM_Vol        tLVM_Vol;
+typedef struct sLVM_Format tLVM_Format;
+
+// === STRUCTURES ===
+struct sLVM_Format
+{
+       tLVM_Format     *Next;
+       const char      *Name;
+        int    (*CountSubvolumes)(tLVM_Vol *Volume, void *FirstBlockData);
+       void    (*PopulateSubvolumes)(tLVM_Vol *Volume, void *FirstBlockData);
+};
+
+// === FUNCTIONS ===
+extern size_t  LVM_int_ReadVolume(tLVM_Vol *Volume, Uint64 BlockNum, size_t BlockCount, void *Dest);
+extern size_t  LVM_int_WriteVolume(tLVM_Vol *Volume, Uint64 BlockNum, size_t BlockCount, const void *Src);
+
+// --- Subvolume Management ---
+extern void    LVM_int_SetSubvolume_Anon(tLVM_Vol *Volume, int Index, Uint64 FirstBlock, Uint64 LastBlock);
+
+// --- Global Fromats ---
+extern tLVM_Format     gLVM_MBRType;
+
+#endif
+