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README revision 1.1 
      1 This is the Intel ACPI Component Architecture, Intel's reference
      2 implementation of the core operating system ACPI support.  The
      3 portion in the Osd/ subdirectory is provided by the oprerating
      4 system as the glue between the OS and the ACPICA.
      5 
      6 Please, do not import an updated ACPI CA snapshot from Intel unless
      7 you absolutely know what you're doing -- The Intel directory layout
      8 changes from release to release, and we must munge it (by hand) into
      9 something sane that we can use.
     10 
     11 The routines that the operating system must provide are documented
     12 in the following document:
     13 
     14 	ACPI Component Architecture Programmer Reference
     15 	Intel Corp.
     16 
     17 Machine-dependent code must provide the following routines for Osd:
     18 
     19 ACPI_STATUS	acpi_md_OsInitialize(void);
     20 ACPI_STATUS	acpi_md_OsTerminate(void);
     21 ACPI_STATUS	acpi_md_OsGetRootPointer(UINT32 Flags,
     22 		    ACPI_PHYSICAL_ADDRESS *PhysicalAddress);
     23 
     24 UINT8		acpi_md_OsIn8(ACPI_IO_ADDRESS InPort);
     25 UINT16		acpi_md_OsIn16(ACPI_IO_ADDRESS InPort);
     26 UINT32		acpi_md_OsIn32(ACPI_IO_ADDRESS InPort);
     27 
     28 void		acpi_md_OsOut8(ACPI_IO_ADDRESS OutPort, UINT8 Value);
     29 void		acpi_md_OsOut16(ACPI_IO_ADDRESS OutPort, UINT16 Value);
     30 void		acpi_md_OsOut32(ACPI_IO_ADDRESS OutPort, UINT32 Value);
     31 
     32 ACPI_STATUS	acpi_md_OsInstallInterruptHandler(UINT32 InterruptNumber,
     33 		    OSD_HANDLER ServiceRoutine, void *Context, void **cookiep);
     34 void		acpi_md_OsRemoveInterruptHandler(void *cookie);
     35 
     36 ACPI_STATUS	acpi_md_OsMapMemory(ACPI_PHYSICAL_ADDRESS PhysicalAddress,
     37 		    UINT32 Length, void **LogicalAddress);
     38 void		acpi_md_OsUnmapMemory(void *LogicalAddress, UINT32 Length);
     39 ACPI_STATUS	acpi_md_OsGetPhysicalAddress(void *LogicalAddress,
     40 		    ACPI_PHYSICAL_ADDRESS *PhysicalAddress);
     41 
     42 BOOLEAN		acpi_md_OsReadable(void *Pointer, UINT32 Length);
     43 BOOLEAN		acpi_md_OsWritable(void *Pointer, UINT32 Length);
     44 
     45 	-- Jason R. Thorpe <thorpej (a] wasabisystems.com>
     46