rom/partition/partitionami_init.c

   1 /*
   2     Copyright © 1995-2002, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: AmigaOS specific partition initialization code.
   6     Lang: English.
   7 */
   8
   9 /****************************************************************************************/
  10
  11 #include <exec/libraries.h>
  12 #include <exec/resident.h>
  13 #include <proto/exec.h>
  14
  15 #include <libraries/partition.h>
  16 #include "platform.h"
  17 #include "partition_support.h"
  18
  19 /****************************************************************************************/
  20
  21 #define VERSION 1
  22 #define REVISION 0
  23
  24 #define NAME_STRING    "partition.library"
  25 #define VERSION_STRING "$VER: partition 1.0 (25.08.2002)\r\n"
  26
  27
  28 /****************************************************************************************/
  29
  30 extern const char name[];
  31 extern const char version[];
  32 extern const APTR inittable[4];
  33 extern void *const functable[];
  34 extern struct PartitionBase * SAVEDS ASM libinit();
  35 extern const char libend;
  36
  37 /****************************************************************************************/
  38
  39 int entry(void) {
  40     return -1;
  41 }
  42
  43 /****************************************************************************************/
  44
  45 const struct Resident ROMTag =
  46 {
  47   RTC_MATCHWORD,
  48   (struct Resident *)&ROMTag,
  49   (APTR)&libend,
  50   RTF_AUTOINIT,
  51   VERSION,
  52   NT_LIBRARY,
  53   0,
  54   (char *)name,
  55   (char *)&version[6],
  56   (ULONG *)inittable
  57 };
  58
  59 /****************************************************************************************/
  60
  61 const char name[]    = NAME_STRING;
  62 const char version[] = VERSION_STRING;
  63
  64 const APTR inittable[4] =
  65 {
  66     (APTR)sizeof(struct PartitionBase),
  67     (APTR)functable,
  68     NULL,
  69     (APTR)&libinit
  70 };
  71
  72 /****************************************************************************************/
  73
  74 struct PartitionBase * SAVEDS ASM libinit
  75     (
  76         REGPARAM(d0, struct PartitionBase *, PartitionBase),
  77         REGPARAM(a0, BPTR, segList)
  78     )
  79 {
  80
  81     PartitionBase->lh.lh_SysBase = *(struct ExecBase **)4L;
  82     PartitionBase->lh.lh_SegList = segList;
  83     PartitionBase->lh.lh_LibNode.lib_Node.ln_Type  = NT_LIBRARY;
  84     PartitionBase->lh.lh_LibNode.lib_Node.ln_Name  = (char *)name;
  85     PartitionBase->lh.lh_LibNode.lib_Flags         = LIBF_SUMUSED|LIBF_CHANGED;
  86     PartitionBase->lh.lh_LibNode.lib_Version       = VERSION;
  87     PartitionBase->lh.lh_LibNode.lib_Revision      = REVISION;
  88     PartitionBase->lh.lh_LibNode.lib_IdString      = (char *)&version[6];
  89     PartitionBase->tables = (struct PartitionTableInfo **)PartitionSupport;
  90     return PartitionBase;
  91 }
  92
  93 SAVEDS ASM BPTR libExpunge(REGPARAM(a6, struct PartitionBase *, PartitionBase)) {
  94 BPTR retval;
  95
  96     if (PartitionBase->lh.lh_LibNode.lib_OpenCnt != 0)
  97     {
  98         PartitionBase->lh.lh_LibNode.lib_Flags |= LIBF_DELEXP;
  99         return NULL;
 100     }
 101     Remove(&PartitionBase->lh.lh_LibNode.lib_Node);
 102     retval = PartitionBase->lh.lh_SegList;
 103     FreeMem
 104     (
 105         (char *)PartitionBase - PartitionBase->lh.lh_LibNode.lib_NegSize,
 106         PartitionBase->lh.lh_LibNode.lib_NegSize + PartitionBase->lh.lh_LibNode.lib_PosSize
 107     );
 108     return retval;
 109 }
 110
 111 SAVEDS ASM struct PartitionBase *libOpen
 112     (
 113         REGPARAM(a6, struct PartitionBase *, PartitionBase),
 114         REGPARAM(d0, ULONG, version)
 115     )
 116 {
 117     PartitionBase->lh.lh_LibNode.lib_Flags &= ~LIBF_DELEXP;
 118     PartitionBase->lh.lh_LibNode.lib_OpenCnt++;
 119     return PartitionBase;
 120 }
 121
 122 SAVEDS ASM BPTR libClose(REGPARAM(a6, struct PartitionBase *, PartitionBase)) {
 123
 124     PartitionBase->lh.lh_LibNode.lib_OpenCnt--;
 125     if ((PartitionBase->lh.lh_LibNode.lib_Flags & LIBF_DELEXP) != 0)
 126     {
 127         if (PartitionBase->lh.lh_LibNode.lib_OpenCnt == 0)
 128             return libExpunge(PartitionBase);
 129         PartitionBase->lh.lh_LibNode.lib_Flags &= ~LIBF_DELEXP;
 130     }
 131     return NULL;
 132 }
 133
 134 SAVEDS ASM int libNull(REGPARAM(a6, struct PartitionBase *, PartitionBase)) {
 135     return 0;
 136 }
 137
 138 extern void Partition_OpenRootPartition(void);
 139 extern void Partition_CloseRootPartition(void);
 140 extern void Partition_OpenPartitionTable(void);
 141 extern void Partition_ClosePartitionTable(void);
 142 extern void Partition_WritePartitionTable(void);
 143 extern void Partition_CreatePartitionTable(void);
 144 extern void Partition_AddPartition(void);
 145 extern void Partition_DeletePartition(void);
 146 extern void Partition_GetPartitionTableAttrs(void);
 147 extern void Partition_SetPartitionTableAttrs(void);
 148 extern void Partition_GetPartitionAttrs(void);
 149 extern void Partition_SetPartitionAttrs(void);
 150 extern void Partition_QueryPartitionTableAttrs(void);
 151 extern void Partition_QueryPartitionAttrs(void);
 152 extern void Partition_DestroyPartitionTable(void);
 153
 154
 155 void *const functable[]=
 156 {
 157     libOpen,
 158     libClose,
 159     libExpunge,
 160     libNull,
 161     Partition_OpenRootPartition,     /* 5 */
 162     Partition_CloseRootPartition,
 163     Partition_OpenPartitionTable,
 164     Partition_ClosePartitionTable,
 165     Partition_WritePartitionTable,
 166     Partition_CreatePartitionTable, /* 10 */
 167     Partition_AddPartition,
 168     Partition_DeletePartition,
 169     Partition_GetPartitionTableAttrs,
 170     Partition_SetPartitionTableAttrs,
 171     Partition_GetPartitionAttrs,    /* 15 */
 172     Partition_SetPartitionAttrs,
 173     Partition_QueryPartitionTableAttrs,
 174     Partition_QueryPartitionAttrs,
 175     Partition_DestroyPartitionTable,
 176     (void *)-1L
 177 };
 178
 179 const char libend = 0;