rom/partition/partition_support.h

   1 #ifndef PARTITION_SUPPORT_H
   2 #define PARTITION_SUPPORT_H
   3
   4 /*
   5     Copyright © 1995-2011, The AROS Development Team. All rights reserved.
   6     $Id$
   7
   8 */
   9
  10 #include <libraries/partition.h>
  11 #include <utility/tagitem.h>
  12 #include <proto/partition.h>
  13
  14 #include "partition_intern.h"
  15
  16 struct FSFunctionTable;
  17
  18 struct FileSysHandle
  19 {
  20     struct Node ln;
  21     const struct FSFunctionTable *handler;
  22     BOOL boot;
  23     /* Handler's private data follows */
  24 };
  25
  26 struct FSFunctionTable
  27 {
  28     BPTR (*loadFileSystem)   (struct PartitionBase_intern *, struct FileSysHandle *);
  29     LONG (*getFileSystemAttr)(struct Library *, struct FileSysHandle *, const struct TagItem *);
  30     void (*freeFileSystem)   (struct FileSysHandle *);
  31 };
  32
  33 struct PTFunctionTable
  34 {
  35     ULONG       type; /* Partition Table Type */
  36     CONST_STRPTR name;
  37     LONG        (*checkPartitionTable)     (struct Library *, struct PartitionHandle *);
  38     LONG        (*openPartitionTable)      (struct Library *, struct PartitionHandle *);
  39     void        (*closePartitionTable)     (struct Library *, struct PartitionHandle *);
  40     LONG        (*writePartitionTable)     (struct Library *, struct PartitionHandle *);
  41     LONG        (*createPartitionTable)    (struct Library *, struct PartitionHandle *);
  42     struct PartitionHandle *(*addPartition)(struct Library *, struct PartitionHandle *, struct TagItem *);
  43     void        (*deletePartition)         (struct Library *, struct PartitionHandle *);
  44     LONG        (*getPartitionTableAttr)   (struct Library *, struct PartitionHandle *, struct TagItem *);
  45     LONG        (*setPartitionTableAttrs)  (struct Library *, struct PartitionHandle *, struct TagItem *);
  46     LONG        (*getPartitionAttr)        (struct Library *, struct PartitionHandle *, struct TagItem *);
  47     LONG        (*setPartitionAttrs)       (struct Library *, struct PartitionHandle *, const struct TagItem *);
  48     const struct PartitionAttribute *partitionTableAttrs;
  49     const struct PartitionAttribute *partitionAttrs;
  50     ULONG       (*destroyPartitionTable) (struct Library *, struct PartitionHandle *);
  51     struct Node *(*findFileSystem)       (struct Library *, struct PartitionHandle *, struct TagItem *);
  52 };
  53
  54 struct BootFileSystem
  55 {
  56     struct Node ln;
  57     struct FileSysHandle *handle;
  58 };
  59
  60 extern const struct PTFunctionTable * const PartitionSupport[];
  61
  62 extern const struct PTFunctionTable PartitionEBR;
  63 extern const struct PTFunctionTable PartitionMBR;
  64 extern const struct PTFunctionTable PartitionRDB;
  65 extern const struct PTFunctionTable PartitionGPT;
  66 extern const struct FSFunctionTable FilesystemRDB;
  67
  68 LONG PartitionGetGeometry(struct Library *, struct IOExtTD *, struct DriveGeometry *);
  69 void PartitionNsdCheck(struct Library *, struct PartitionHandle *);
  70 ULONG getStartBlock(struct PartitionHandle *);
  71 LONG deviceError(LONG err);
  72
  73 void initPartitionHandle(struct PartitionHandle *root, struct PartitionHandle *ph, ULONG first_sector, ULONG count_sector);
  74 void setDosType(struct DosEnvec *de, ULONG type);
  75
  76 unsigned int Crc32_ComputeBuf(unsigned int inCrc32, const void *buf, unsigned int bufLen);
  77
  78 /* read a single block within partition ph */
  79 static inline LONG readBlock(struct Library *PartitionBase, struct PartitionHandle *ph, ULONG block, void *mem)
  80 {
  81     return ReadPartitionDataQ(ph, mem, ph->de.de_SizeBlock << 2, block);
  82 }
  83
  84 /* write a single block within partition ph */
  85 static inline LONG PartitionWriteBlock(struct Library *PartitionBase, struct PartitionHandle *ph, ULONG block, void *mem)
  86 {
  87     return WritePartitionDataQ(ph, mem, ph->de.de_SizeBlock << 2, block);
  88 }
  89
  90 #define getGeometry PartitionGetGeometry
  91 #define writeBlock  PartitionWriteBlock
  92
  93 #endif /* PARTITION_SUPPORT_H */