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ACPICA: ACPI 6.0: Update _BIX support for new package element

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ACPICA commit 3451e6d49d37919c13ec2c0019a31534b0dfc0c0

One integer was added at the end of the _BIX method, and the
version number was incremented.

Link: https://github.com/acpica/acpica/commit/3451e6d4
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Bob Moore 2016-05-05 12:58:12 +08:00 committed by Rafael J. Wysocki
parent 2a397a390a
commit 7952d40240
2 changed files with 89 additions and 2 deletions
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5
drivers/acpi/acpica/acpredef.h
View File

@ -129,7 +129,8 @@ enum acpi_return_package_types {
ACPI_PTYPE2_REV_FIXED = 9,
ACPI_PTYPE2_FIX_VAR = 10,
ACPI_PTYPE2_VAR_VAR = 11,
ACPI_PTYPE2_UUID_PAIR = 12
ACPI_PTYPE2_UUID_PAIR = 12,
ACPI_PTYPE_CUSTOM = 13
};
/* Support macros for users of the predefined info table */
@ -340,7 +341,7 @@ const union acpi_predefined_info acpi_gbl_predefined_methods[] = {
{{"_BIX", METHOD_0ARGS,
METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (16 Int),(4 Str) */
PACKAGE_INFO(ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 16,
PACKAGE_INFO(ACPI_PTYPE_CUSTOM, ACPI_RTYPE_INTEGER, 16,
ACPI_RTYPE_STRING, 4, 0),
{{"_BLT",

86
drivers/acpi/acpica/nsprepkg.c
View File

@ -62,6 +62,10 @@ acpi_ns_check_package_elements(struct acpi_evaluate_info *info,
u32 count1,
u8 type2, u32 count2, u32 start_index);
static acpi_status
acpi_ns_custom_package(struct acpi_evaluate_info *info,
union acpi_operand_object **elements, u32 count);
/*******************************************************************************
*
* FUNCTION: acpi_ns_check_package
@ -135,6 +139,11 @@ acpi_ns_check_package(struct acpi_evaluate_info *info,
* PTYPE2 packages contain subpackages
*/
switch (package->ret_info.type) {
case ACPI_PTYPE_CUSTOM:
status = acpi_ns_custom_package(info, elements, count);
break;
case ACPI_PTYPE1_FIXED:
/*
* The package count is fixed and there are no subpackages
@ -624,6 +633,83 @@ package_too_small:
return (AE_AML_OPERAND_VALUE);
}
/*******************************************************************************
*
* FUNCTION: acpi_ns_custom_package
*
* 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
acpi_ns_custom_package(struct acpi_evaluate_info *info,
union acpi_operand_object **elements, u32 count)
{
u32 expected_count;
u32 version;
acpi_status status = AE_OK;
ACPI_FUNCTION_NAME(ns_custom_package);
/* Get version number, must be Integer */
if ((*elements)->common.type != ACPI_TYPE_INTEGER) {
ACPI_WARN_PREDEFINED((AE_INFO, info->full_pathname,
info->node_flags,
"Return Package has invalid object type for version number"));
return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
}
version = (u32)(*elements)->integer.value;
expected_count = 21; /* Version 1 */
if (version == 0) {
expected_count = 20; /* Version 0 */
}
if (count < expected_count) {
ACPI_WARN_PREDEFINED((AE_INFO, info->full_pathname,
info->node_flags,
"Return Package is too small - found %u elements, expected %u",
count, expected_count));
return_ACPI_STATUS(AE_AML_OPERAND_VALUE);
} else if (count > expected_count) {
ACPI_DEBUG_PRINT((ACPI_DB_REPAIR,
"%s: Return Package is larger than needed - "
"found %u, expected %u\n",
info->full_pathname, count, expected_count));
}
/* Validate all elements of the returned package */
status = acpi_ns_check_package_elements(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 = acpi_ns_check_package_elements(info, elements + 20,
ACPI_RTYPE_INTEGER, 1,
0, 0, 20);
}
return_ACPI_STATUS(status);
}
/*******************************************************************************
*
* FUNCTION: acpi_ns_check_package_elements