ACPICA: iASL/Core: Add support for _WDG/_WED MS methods

These objects are defined by "Windows Instrumentation", and are
not part of the ACPI spec. Adds compiler support and runtime
typechecking support in the ACPICA core. ACPICA BZ 860.

http://www.acpica.org/bugzilla/show_bug.cgi?id=860

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

1 files changed, 7 insertions, 6 deletions

diff --git a/drivers/acpi/acpica/acpredef.h b/drivers/acpi/acpica/acpredef.h
index 97116082cb6c..10998d369ad0 100644
--- a/drivers/acpi/acpica/acpredef.h
+++ b/drivers/acpi/acpica/acpredef.h
@@ -503,15 +503,16 @@ static const union acpi_predefined_info predefined_names[] =
         {{"_WAK", 1, ACPI_RTYPE_NONE | ACPI_RTYPE_INTEGER | ACPI_RTYPE_PACKAGE}},
                           {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 2,0}, 0,0}}, /* Fixed-length (2 Int), but is optional */
 
-        {{{0,0,0,0}, 0,0}} /* Table terminator */
-};
+        /* _WDG/_WED are MS extensions defined by "Windows Instrumentation" */
 
-#if 0
-        /* Not implemented */
+        {{"_WDG", 0, ACPI_RTYPE_BUFFER}},
+        {{"_WED", 1,
+          ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING | ACPI_RTYPE_BUFFER}},
 
-        {{"_WDG", 0, ACPI_RTYPE_BUFFER}},  /* MS Extension */
-        {{"_WED", 1, ACPI_RTYPE_PACKAGE}}, /* MS Extension */
+        {{{0, 0, 0, 0}, 0, 0}}  /* Table terminator */
+};
 
+#if 0
         /* This is an internally implemented control method, no need to check */
         {{"_OSI", 1, ACPI_RTYPE_INTEGER}},