Modules - x86_64 compile fix to ATA and LVM

[tpg/acess2.git] / KernelLand / Modules / Storage / LVM / volumes.c

diff --git a/KernelLand/Modules/Storage/LVM/volumes.c b/KernelLand/Modules/Storage/LVM/volumes.c
index e69de29..558a7aa 100644 (file)
--- a/KernelLand/Modules/Storage/LVM/volumes.c
+++ b/KernelLand/Modules/Storage/LVM/volumes.c
@@ -0,0 +1,116 @@
+/*
+ * Acess2 Logical Volume Manager
+ * - By John Hodge (thePowersGang)
+ *
+ * volumes.c
+ * - Volume management
+ */
+#include "lvm_int.h"
+
+// === PROTOTYPES ===
+ int   LVM_int_VFSReadEmul(void *Arg, Uint64 BlockStart, size_t BlockCount, void *Dest);
+ int   LVM_int_VFSWriteEmul(void *Arg, Uint64 BlockStart, size_t BlockCount, const void *Source);
+
+// === CODE ===
+// --------------------------------------------------------------------
+// Managment / Initialisation
+// --------------------------------------------------------------------
+int LVM_AddVolumeVFS(const char *Name, int FD)
+{
+       return LVM_AddVolume(Name, (void*)(Uint)FD, LVM_int_VFSReadEmul, LVM_int_VFSWriteEmul);
+}
+
+int LVM_AddVolume(const char *Name, void *Ptr, tLVM_ReadFcn Read, tLVM_WriteFcn Write)
+{
+       tLVM_Vol        dummy_vol;
+//     tLVM_Vol        *real_vol;
+
+       dummy_vol.Ptr = Ptr;
+       dummy_vol.Read = Read;
+       dummy_vol.Write = Write;
+       
+       // Determine Type
+
+       // Type->CountSubvolumes
+       
+       // Create real volume descriptor
+
+       // Type->PopulateSubvolumes
+
+       // Add to volume list
+
+       return 0;
+}
+
+void LVM_int_SetSubvolume_Anon(tLVM_Vol *Volume, int Index, Uint64 FirstBlock, Uint64 BlockCount)
+{
+       tLVM_SubVolume  *sv;
+        int    namelen;
+
+       if( Index < 0 || Index >= Volume->nSubVolumes ) {
+               Log_Warning("LVM", "SV ID is out of range (0 < %i < %i)",
+                       Index, Volume->nSubVolumes);
+               return ;
+       }
+
+       if( Volume->SubVolumes[Index] ) {
+               Log_Warning("LVM", "Attempt to set SV %i of %p twice", Index, Volume);
+               return ;
+       }
+       
+       namelen = snprintf(NULL, 0, "%i", Index);
+
+       sv = malloc( sizeof(tLVM_SubVolume) + namelen + 1 );
+       if(!sv) {
+               // Oh, f*ck
+               return ;
+       }
+       Volume->SubVolumes[Index] = sv; 
+
+       sv->Vol = Volume;
+       sprintf(sv->Name, "%i", Index);
+       sv->FirstBlock = FirstBlock;
+       sv->BlockCount = BlockCount;
+       memset(&sv->Node, 0, sizeof(tVFS_Node));
+       
+       sv->Node.ImplPtr = sv;
+       sv->Node.Type = &gLVM_SubVolNodeType;
+}
+
+// --------------------------------------------------------------------
+// IO
+// --------------------------------------------------------------------
+size_t LVM_int_ReadVolume(tLVM_Vol *Volume, Uint64 BlockNum, size_t BlockCount, void *Dest)
+{
+       return Volume->Read(Volume->Ptr, BlockNum, BlockCount, Dest);
+}
+
+size_t LVM_int_WriteVolume(tLVM_Vol *Volume, Uint64 BlockNum, size_t BlockCount, const void *Src)
+{
+       return Volume->Write(Volume->Ptr, BlockNum, BlockCount, Src);   
+}
+
+int LVM_int_VFSReadEmul(void *Arg, Uint64 BlockStart, size_t BlockCount, void *Dest)
+{
+       size_t  blocksize;
+       size_t  rv;
+
+       blocksize = 512;        // TODO: Don't assume   
+
+       rv = VFS_ReadAt( (int)(Uint)Arg, BlockStart * blocksize, BlockCount * blocksize, Dest );
+       rv /= blocksize;
+       return rv;
+}
+
+int LVM_int_VFSWriteEmul(void *Arg, Uint64 BlockStart, size_t BlockCount, const void *Source)
+{
+       size_t  blocksize;
+       size_t  rv;
+
+       blocksize = 512;        // TODO: Don't assume   
+
+       rv = VFS_WriteAt( (int)(Uint)Arg, BlockStart * blocksize, BlockCount * blocksize, Source );
+       rv /= blocksize;
+       return rv;
+}
+