1# $NetBSD: README,v 1.4 2010/07/24 06:10:43 jruoho Exp $ 2 3This is the Intel ACPI Component Architecture, Intel's reference 4implementation of the core operating system ACPI support. The 5portion in the acpica/ subdirectory is provided by the operating 6system as the glue between the OS and the ACPICA. 7 8Please, do not import an updated ACPICA snapshot from Intel unless 9you absolutely know what you're doing -- The Intel directory layout 10changes from release to release, and we must munge it (by hand) into 11something sane that we can use. 12 13The routines that the operating system must provide are documented 14in the following document: 15 16 Intel Corp., ACPI Component Architecture Programmer Reference 17 18Copies of the document may be retrieved from: 19 20 http://www.acpica.org/download/acpica-reference.pdf 21 22Machine-dependent code must provide at least the following routines: 23 24ACPI_STATUS acpi_md_OsInitialize(void); 25ACPI_STATUS acpi_md_OsTerminate(void); 26ACPI_STATUS acpi_md_OsGetRootPointer(UINT32 Flags, 27 ACPI_PHYSICAL_ADDRESS *PhysicalAddress); 28 29UINT8 acpi_md_OsIn8(ACPI_IO_ADDRESS InPort); 30UINT16 acpi_md_OsIn16(ACPI_IO_ADDRESS InPort); 31UINT32 acpi_md_OsIn32(ACPI_IO_ADDRESS InPort); 32 33void acpi_md_OsOut8(ACPI_IO_ADDRESS OutPort, UINT8 Value); 34void acpi_md_OsOut16(ACPI_IO_ADDRESS OutPort, UINT16 Value); 35void acpi_md_OsOut32(ACPI_IO_ADDRESS OutPort, UINT32 Value); 36 37ACPI_STATUS acpi_md_OsInstallInterruptHandler(UINT32 InterruptNumber, 38 OSD_HANDLER ServiceRoutine, void *Context, void **cookiep); 39void acpi_md_OsRemoveInterruptHandler(void *cookie); 40 41ACPI_STATUS acpi_md_OsMapMemory(ACPI_PHYSICAL_ADDRESS PhysicalAddress, 42 UINT32 Length, void **LogicalAddress); 43void acpi_md_OsUnmapMemory(void *LogicalAddress, UINT32 Length); 44ACPI_STATUS acpi_md_OsGetPhysicalAddress(void *LogicalAddress, 45 ACPI_PHYSICAL_ADDRESS *PhysicalAddress); 46 47BOOLEAN acpi_md_OsReadable(void *Pointer, UINT32 Length); 48BOOLEAN acpi_md_OsWritable(void *Pointer, UINT32 Length); 49 50 -- Jason R. Thorpe <thorpej@wasabisystems.com> 51