diff options
Diffstat (limited to 'source/components/namespace/nsprepkg.c')
| -rw-r--r-- | source/components/namespace/nsprepkg.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/source/components/namespace/nsprepkg.c b/source/components/namespace/nsprepkg.c index 141251f8519e..ae75c1a0185d 100644 --- a/source/components/namespace/nsprepkg.c +++ b/source/components/namespace/nsprepkg.c @@ -70,6 +70,12 @@ AcpiNsCheckPackageElements ( UINT32 Count2, UINT32 StartIndex); +static ACPI_STATUS +AcpiNsCustomPackage ( + ACPI_EVALUATE_INFO *Info, + ACPI_OPERAND_OBJECT **Elements, + UINT32 Count); + /******************************************************************************* * @@ -148,6 +154,11 @@ AcpiNsCheckPackage ( */ switch (Package->RetInfo.Type) { + case ACPI_PTYPE_CUSTOM: + + Status = AcpiNsCustomPackage (Info, Elements, Count); + break; + case ACPI_PTYPE1_FIXED: /* * The package count is fixed and there are no subpackages @@ -626,6 +637,92 @@ PackageTooSmall: /******************************************************************************* * + * FUNCTION: AcpiNsCustomPackage + * + * PARAMETERS: Info - Method execution information block + * Elements - Pointer to the package elements array + * Count - Element count for the package + * + * RETURN: Status + * + * DESCRIPTION: Check a returned package object for the correct count and + * correct type of all sub-objects. + * + * NOTE: Currently used for the _BIX method only. When needed for two or more + * methods, probably a detect/dispatch mechanism will be required. + * + ******************************************************************************/ + +static ACPI_STATUS +AcpiNsCustomPackage ( + ACPI_EVALUATE_INFO *Info, + ACPI_OPERAND_OBJECT **Elements, + UINT32 Count) +{ + UINT32 ExpectedCount; + UINT32 Version; + ACPI_STATUS Status = AE_OK; + + + ACPI_FUNCTION_NAME (NsCustomPackage); + + + /* Get version number, must be Integer */ + + if ((*Elements)->Common.Type != ACPI_TYPE_INTEGER) + { + ACPI_WARN_PREDEFINED ((AE_INFO, Info->FullPathname, Info->NodeFlags, + "Return Package has invalid object type for version number")); + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + } + + Version = (UINT32) (*Elements)->Integer.Value; + ExpectedCount = 21; /* Version 1 */ + + if (Version == 0) + { + ExpectedCount = 20; /* Version 0 */ + } + + if (Count < ExpectedCount) + { + ACPI_WARN_PREDEFINED ((AE_INFO, Info->FullPathname, Info->NodeFlags, + "Return Package is too small - found %u elements, expected %u", + Count, ExpectedCount)); + return_ACPI_STATUS (AE_AML_OPERAND_VALUE); + } + else if (Count > ExpectedCount) + { + ACPI_DEBUG_PRINT ((ACPI_DB_REPAIR, + "%s: Return Package is larger than needed - " + "found %u, expected %u\n", + Info->FullPathname, Count, ExpectedCount)); + } + + /* Validate all elements of the returned package */ + + Status = AcpiNsCheckPackageElements (Info, Elements, + ACPI_RTYPE_INTEGER, 16, + ACPI_RTYPE_STRING, 4, 0); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* Version 1 has a single trailing integer */ + + if (Version > 0) + { + Status = AcpiNsCheckPackageElements (Info, Elements + 20, + ACPI_RTYPE_INTEGER, 1, 0, 0, 20); + } + + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * * FUNCTION: AcpiNsCheckPackageElements * * PARAMETERS: Info - Method execution information block |