ACPICA/ACPI: Add new host interfaces for _OSI support

Adds install/remove interfaces so that the host can dynamically
alter the global _OSI table. Also adds support for _OSI handlers.
Additional support: new debugger command (osi), and test support in
the acpiexec utility. Adds new file, utilities/utosi.c.
ACPICA bugzilla 836.

The Linux OSL _OSI code is also changed.
acpi_osi_setup can't call acpi_install/remove_interface because ACPICA
is not initialized yet at this early time.
So we just save the osi string in acpi_osi_setup and will handle it
later in a new function acpi_osi_setup_late.

http://www.acpica.org/bugzilla/show_bug.cgi?id=836

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index c0786d446a00..e4d6cc8074e4 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -105,6 +105,10 @@ const char *acpi_format_exception(acpi_status exception);
 
 acpi_status acpi_purge_cached_objects(void);
 
+acpi_status acpi_install_interface(acpi_string interface_name);
+
+acpi_status acpi_remove_interface(acpi_string interface_name);
+
 /*
  * ACPI Memory management
  */
@@ -263,6 +267,8 @@ acpi_remove_gpe_handler(acpi_handle gpe_device,
 acpi_status acpi_install_exception_handler(acpi_exception_handler handler);
 #endif
 
+acpi_status acpi_install_interface_handler(acpi_interface_handler handler);
+
 /*
  * Event interfaces
  */