diff options
| -rw-r--r-- | drivers/acpi/namespace/Makefile | 2 | ||||
| -rw-r--r-- | drivers/acpi/namespace/nseval.c | 35 | ||||
| -rw-r--r-- | drivers/acpi/namespace/nsnames.c | 2 | ||||
| -rw-r--r-- | drivers/acpi/namespace/nspredef.c | 900 | ||||
| -rw-r--r-- | include/acpi/acdebug.h | 4 | ||||
| -rw-r--r-- | include/acpi/aclocal.h | 77 | ||||
| -rw-r--r-- | include/acpi/acnamesp.h | 16 | ||||
| -rw-r--r-- | include/acpi/acpredef.h | 371 |
8 files changed, 1401 insertions, 6 deletions
diff --git a/drivers/acpi/namespace/Makefile b/drivers/acpi/namespace/Makefile index 3f63d3640696..371a2daf837f 100644 --- a/drivers/acpi/namespace/Makefile +++ b/drivers/acpi/namespace/Makefile @@ -5,7 +5,7 @@ obj-y := nsaccess.o nsload.o nssearch.o nsxfeval.o \ nsalloc.o nseval.o nsnames.o nsutils.o nsxfname.o \ nsdump.o nsinit.o nsobject.o nswalk.o nsxfobj.o \ - nsparse.o + nsparse.o nspredef.o obj-$(ACPI_FUTURE_USAGE) += nsdumpdv.o diff --git a/drivers/acpi/namespace/nseval.c b/drivers/acpi/namespace/nseval.c index 42dae12f2ef8..4cdf03ac2b46 100644 --- a/drivers/acpi/namespace/nseval.c +++ b/drivers/acpi/namespace/nseval.c @@ -78,6 +78,7 @@ ACPI_MODULE_NAME("nseval") acpi_status acpi_ns_evaluate(struct acpi_evaluate_info * info) { acpi_status status; + struct acpi_namespace_node *node; ACPI_FUNCTION_TRACE(ns_evaluate); @@ -117,6 +118,8 @@ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info * info) info->resolved_node, acpi_ns_get_attached_object(info->resolved_node))); + node = info->resolved_node; + /* * Two major cases here: * @@ -261,9 +264,35 @@ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info * info) } } - /* - * Check if there is a return value that must be dealt with - */ + /* Validation of return values for ACPI-predefined methods and objects */ + + if ((status == AE_OK) || (status == AE_CTRL_RETURN_VALUE)) { + /* + * If this is the first evaluation, check the return value. This + * ensures that any warnings will only be emitted during the very + * first evaluation of the object. + */ + if (!(node->flags & ANOBJ_EVALUATED)) { + /* + * Check for a predefined ACPI name. If found, validate the + * returned object. + * + * Note: Ignore return status for now, emit warnings if there are + * problems with the returned object. May change later to abort + * the method on invalid return object. + */ + (void)acpi_ns_check_predefined_names(node, + info-> + return_object); + } + + /* Mark the node as having been evaluated */ + + node->flags |= ANOBJ_EVALUATED; + } + + /* Check if there is a return value that must be dealt with */ + if (status == AE_CTRL_RETURN_VALUE) { /* If caller does not want the return value, delete it */ diff --git a/drivers/acpi/namespace/nsnames.c b/drivers/acpi/namespace/nsnames.c index 9c587bdfe3f3..42a39a7c96e9 100644 --- a/drivers/acpi/namespace/nsnames.c +++ b/drivers/acpi/namespace/nsnames.c @@ -115,7 +115,6 @@ acpi_ns_build_external_path(struct acpi_namespace_node *node, return (AE_OK); } -#ifdef ACPI_DEBUG_OUTPUT /******************************************************************************* * * FUNCTION: acpi_ns_get_external_pathname @@ -163,7 +162,6 @@ char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node) return_PTR(name_buffer); } -#endif /******************************************************************************* * diff --git a/drivers/acpi/namespace/nspredef.c b/drivers/acpi/namespace/nspredef.c new file mode 100644 index 000000000000..0f17cf0898c9 --- /dev/null +++ b/drivers/acpi/namespace/nspredef.c @@ -0,0 +1,900 @@ +/****************************************************************************** + * + * Module Name: nspredef - Validation of ACPI predefined methods and objects + * $Revision: 1.1 $ + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include <acpi/acnamesp.h> +#include <acpi/acpredef.h> + +#define _COMPONENT ACPI_NAMESPACE +ACPI_MODULE_NAME("nspredef") + +/******************************************************************************* + * + * This module validates predefined ACPI objects that appear in the namespace, + * at the time they are evaluated (via acpi_evaluate_object). The purpose of this + * validation is to detect problems with BIOS-exposed predefined ACPI objects + * before the results are returned to the ACPI-related drivers. + * + * There are several areas that are validated: + * + * 1) The number of input arguments as defined by the method/object in the + * ASL is validated against the ACPI specification. + * 2) The type of the return object (if any) is validated against the ACPI + * specification. + * 3) For returned package objects, the count of package elements is + * validated, as well as the type of each package element. Nested + * packages are supported. + * + * For any problems found, a warning message is issued. + * + ******************************************************************************/ +/* Local prototypes */ +static acpi_status +acpi_ns_check_package(char *pathname, + union acpi_operand_object *return_object, + const union acpi_predefined_info *predefined); + +static acpi_status +acpi_ns_check_package_elements(char *pathname, + union acpi_operand_object **elements, + u8 type1, u32 count1, u8 type2, u32 count2); + +static acpi_status +acpi_ns_check_object_type(char *pathname, + union acpi_operand_object *return_object, + u32 expected_btypes, u32 package_index); + +static acpi_status +acpi_ns_check_reference(char *pathname, + union acpi_operand_object *return_object); + +/* + * Names for the types that can be returned by the predefined objects. + * Used for warning messages. Must be in the same order as the ACPI_RTYPEs + */ +static const char *acpi_rtype_names[] = { + "/Integer", + "/String", + "/Buffer", + "/Package", + "/Reference", +}; + +#define ACPI_NOT_PACKAGE ACPI_UINT32_MAX + +/******************************************************************************* + * + * FUNCTION: acpi_ns_check_predefined_names + * + * PARAMETERS: Node - Namespace node for the method/object + * return_object - Object returned from the evaluation of this + * method/object + * + * RETURN: Status + * + * DESCRIPTION: Check an ACPI name for a match in the predefined name list. + * + ******************************************************************************/ + +acpi_status +acpi_ns_check_predefined_names(struct acpi_namespace_node *node, + union acpi_operand_object *return_object) +{ + acpi_status status = AE_OK; + const union acpi_predefined_info *predefined; + char *pathname; + + /* Match the name for this method/object against the predefined list */ + + predefined = acpi_ns_check_for_predefined_name(node); + if (!predefined) { + + /* Name was not one of the predefined names */ + + return (AE_OK); + } + + /* Get the full pathname to the object, for use in error messages */ + + pathname = acpi_ns_get_external_pathname(node); + if (!pathname) { + pathname = ACPI_CAST_PTR(char, predefined->info.name); + } + + /* + * Check that the parameter count for this method is in accordance + * with the ACPI specification. + */ + acpi_ns_check_parameter_count(pathname, node, predefined); + + /* + * If there is no return value, check if we require a return value for + * this predefined name. Either one return value is expected, or none, + * for both methods and other objects. + * + * Exit now if there is no return object. Warning if one was expected. + */ + if (!return_object) { + if ((predefined->info.expected_btypes) && + (!(predefined->info.expected_btypes & ACPI_RTYPE_NONE))) { + ACPI_ERROR((AE_INFO, + "%s: Missing expected return value", + pathname)); + + status = AE_AML_NO_RETURN_VALUE; + } + goto exit; + } + + /* + * We have a return value, but if one wasn't expected, just exit, this is + * not a problem + * + * For example, if "Implicit return value" is enabled, methods will + * always return a value + */ + if (!predefined->info.expected_btypes) { + goto exit; + } + + /* + * Check that the type of the return object is what is expected for + * this predefined name + */ + status = acpi_ns_check_object_type(pathname, return_object, + predefined->info.expected_btypes, + ACPI_NOT_PACKAGE); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* For returned Package objects, check the type of all sub-objects */ + + if (ACPI_GET_OBJECT_TYPE(return_object) == ACPI_TYPE_PACKAGE) { + status = + acpi_ns_check_package(pathname, return_object, predefined); + } + + exit: + if (pathname) { + ACPI_FREE(pathname); + } + + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_check_parameter_count + * + * PARAMETERS: Pathname - Full pathname to the node (for error msgs) + * Node - Namespace node for the method/object + * Predefined - Pointer to entry in predefined name table + * + * RETURN: None + * + * DESCRIPTION: Check that the declared (in ASL/AML) parameter count for a + * predefined name is what is expected (i.e., what is defined in + * the ACPI specification for this predefined name.) + * + ******************************************************************************/ + +void +acpi_ns_check_parameter_count(char *pathname, + struct acpi_namespace_node *node, + const union acpi_predefined_info *predefined) +{ + u32 param_count; + u32 required_params_current; + u32 required_params_old; + + /* + * Check that the ASL-defined parameter count is what is expected for + * this predefined name. + * + * Methods have 0-7 parameters. All other types have zero. + */ + param_count = 0; + if (node->type == ACPI_TYPE_METHOD) { + param_count = node->object->method.param_count; + } + + /* Validate parameter count - allow two different legal counts (_SCP) */ + + required_params_current = predefined->info.param_count & 0x0F; + required_params_old = predefined->info.param_count >> 4; + + if ((param_count != required_params_current) && + (param_count != required_params_old)) { + ACPI_WARNING((AE_INFO, + "%s: Parameter count mismatch - ASL declared %d, expected %d", + pathname, param_count, required_params_current)); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_check_for_predefined_name + * + * PARAMETERS: Node - Namespace node for the method/object + * + * RETURN: Pointer to entry in predefined table. NULL indicates not found. + * + * DESCRIPTION: Check an object name against the predefined object list. + * + ******************************************************************************/ + +const union acpi_predefined_info *acpi_ns_check_for_predefined_name(struct + acpi_namespace_node + *node) +{ + const union acpi_predefined_info *this_name; + + /* Quick check for a predefined name, first character must be underscore */ + + if (node->name.ascii[0] != '_') { + return (NULL); + } + + /* Search info table for a predefined method/object name */ + + this_name = predefined_names; + while (this_name->info.name[0]) { + if (ACPI_COMPARE_NAME(node->name.ascii, this_name->info.name)) { + + /* Return pointer to this table entry */ + + return (this_name); + } + + /* + * Skip next entry in the table if this name returns a Package + * (next entry contains the package info) + */ + if (this_name->info.expected_btypes & ACPI_RTYPE_PACKAGE) { + this_name++; + } + + this_name++; + } + + return (NULL); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_check_package + * + * PARAMETERS: Pathname - Full pathname to the node (for error msgs) + * return_object - Object returned from the evaluation of a + * method or object + * Predefined - Pointer to entry in predefined name table + * + * RETURN: Status + * + * DESCRIPTION: Check a returned package object for the correct count and + * correct type of all sub-objects. + * + ******************************************************************************/ + +static acpi_status +acpi_ns_check_package(char *pathname, + union acpi_operand_object *return_object, + const union acpi_predefined_info *predefined) +{ + const union acpi_predefined_info *package; + union acpi_operand_object *sub_package; + union acpi_operand_object **elements; + union acpi_operand_object **sub_elements; + acpi_status status; + u32 expected_count; + u32 count; + u32 i; + u32 j; + + ACPI_FUNCTION_NAME(ns_check_package); + + /* The package info for this name is in the next table entry */ + + package = predefined + 1; + + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "%s Validating return Package of Type %X, Count %X\n", + pathname, package->ret_info.type, + return_object->package.count)); + + /* Extract package count and elements array */ + + elements = return_object->package.elements; + count = return_object->package.count; + + /* The package must have at least one element, else invalid */ + + if (!count) { + ACPI_WARNING((AE_INFO, + "%s: Return Package has no elements (empty)", + pathname)); + + return (AE_AML_OPERAND_VALUE); + } + + /* + * Decode the type of the expected package contents + * + * PTYPE1 packages contain no subpackages + * PTYPE2 packages contain sub-packages + */ + switch (package->ret_info.type) { + case ACPI_PTYPE1_FIXED: + + /* + * The package count is fixed and there are no sub-packages + * + * If package is too small, exit. + * If package is larger than expected, issue warning but continue + */ + expected_count = + package->ret_info.count1 + package->ret_info.count2; + if (count < expected_count) { + goto package_too_small; + } else if (count > expected_count) { + ACPI_WARNING((AE_INFO, + "%s: Return Package is larger than needed - " + "found %u, expected %u", pathname, count, + expected_count)); + } + + /* Validate all elements of the returned package */ + + status = acpi_ns_check_package_elements(pathname, elements, + package->ret_info. + object_type1, + package->ret_info. + count1, + package->ret_info. + object_type2, + package->ret_info. + count2); + if (ACPI_FAILURE(status)) { + return (status); + } + break; + + case ACPI_PTYPE1_VAR: + + /* + * The package count is variable, there are no sub-packages, and all + * elements must be of the same type + */ + for (i = 0; i < count; i++) { + status = acpi_ns_check_object_type(pathname, *elements, + package->ret_info. + object_type1, i); + if (ACPI_FAILURE(status)) { + return (status); + } + elements++; + } + break; + + case ACPI_PTYPE1_OPTION: + + /* + * The package count is variable, there are no sub-packages. There are + * a fixed number of required elements, and a variable number of + * optional elements. + * + * Check if package is at least as large as the minimum required + */ + expected_count = package->ret_info3.count; + if (count < expected_count) { + goto package_too_small; + } + + /* Variable number of sub-objects */ + + for (i = 0; i < count; i++) { + if (i < package->ret_info3.count) { + + /* These are the required package elements (0, 1, or 2) */ + + status = + acpi_ns_check_object_type(pathname, + *elements, + package-> + ret_info3. + object_type[i], + i); + if (ACPI_FAILURE(status)) { + return (status); + } + } else { + /* These are the optional package elements */ + + status = + acpi_ns_check_object_type(pathname, + *elements, + package-> + ret_info3. + tail_object_type, + i); + if (ACPI_FAILURE(status)) { + return (status); + } + } + elements++; + } + break; + + case ACPI_PTYPE2_PKG_COUNT: + + /* First element is the (Integer) count of sub-packages to follow */ + + status = acpi_ns_check_object_type(pathname, *elements, + ACPI_RTYPE_INTEGER, 0); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* + * Count cannot be larger than the parent package length, but allow it + * to be smaller. The >= accounts for the Integer above. + */ + expected_count = (u32) (*elements)->integer.value; + if (expected_count >= count) { + goto package_too_small; + } + + count = expected_count; + elements++; + + /* Now we can walk the sub-packages */ + + /*lint -fallthrough */ + + case ACPI_PTYPE2: + case ACPI_PTYPE2_FIXED: + case ACPI_PTYPE2_MIN: + case ACPI_PTYPE2_COUNT: + + /* + * These types all return a single package that consists of a variable + * number of sub-packages + */ + for (i = 0; i < count; i++) { + sub_package = *elements; + sub_elements = sub_package->package.elements; + + /* Each sub-object must be of type Package */ + + status = + acpi_ns_check_object_type(pathname, sub_package, + ACPI_RTYPE_PACKAGE, i); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* Examine the different types of sub-packages */ + + switch (package->ret_info.type) { + case ACPI_PTYPE2: + case ACPI_PTYPE2_PKG_COUNT: + + /* Each subpackage has a fixed number of elements */ + + expected_count = + package->ret_info.count1 + + package->ret_info.count2; + if (sub_package->package.count != + expected_count) { + count = sub_package->package.count; + goto package_too_small; + } + + status = + acpi_ns_check_package_elements(pathname, + sub_elements, + package-> + ret_info. + object_type1, + package-> + ret_info. + count1, + package-> + ret_info. + object_type2, + package-> + ret_info. + count2); + if (ACPI_FAILURE(status)) { + return (status); + } + break; + + case ACPI_PTYPE2_FIXED: + + /* Each sub-package has a fixed length */ + + expected_count = package->ret_info2.count; + if (sub_package->package.count < expected_count) { + count = sub_package->package.count; + goto package_too_small; + } + + /* Check the type of each sub-package element */ + + for (j = 0; j < expected_count; j++) { + status = + acpi_ns_check_object_type(pathname, + sub_elements + [j], + package-> + ret_info2. + object_type + [j], j); + if (ACPI_FAILURE(status)) { + return (status); + } + } + break; + + case ACPI_PTYPE2_MIN: + + /* Each sub-package has a variable but minimum length */ + + expected_count = package->ret_info.count1; + if (sub_package->package.count < expected_count) { + count = sub_package->package.count; + goto package_too_small; + } + + /* Check the type of each sub-package element */ + + status = + acpi_ns_check_package_elements(pathname, + sub_elements, + package-> + ret_info. + object_type1, + sub_package-> + package. + count, 0, 0); + if (ACPI_FAILURE(status)) { + return (status); + } + break; + + case ACPI_PTYPE2_COUNT: + + /* First element is the (Integer) count of elements to follow */ + + status = + acpi_ns_check_object_type(pathname, + *sub_elements, + ACPI_RTYPE_INTEGER, + 0); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* Make sure package is large enough for the Count */ + + expected_count = + (u32) (*sub_elements)->integer.value; + if (sub_package->package.count < expected_count) { + count = sub_package->package.count; + goto package_too_small; + } + + /* Check the type of each sub-package element */ + + status = + acpi_ns_check_package_elements(pathname, + (sub_elements + + 1), + package-> + ret_info. + object_type1, + (expected_count + - 1), 0, 0); + if (ACPI_FAILURE(status)) { + return (status); + } + break; + + default: + break; + } + + elements++; + } + break; + + default: + + /* Should not get here if predefined info table is correct */ + + ACPI_WARNING((AE_INFO, + "%s: Invalid internal return type in table entry: %X", + pathname, package->ret_info.type)); + + return (AE_AML_INTERNAL); + } + + return (AE_OK); + + package_too_small: + + /* Error exit for the case with an incorrect package count */ + + ACPI_WARNING((AE_INFO, "%s: Return Package is too small - " + "found %u, expected %u", pathname, count, + expected_count)); + + return (AE_AML_OPERAND_VALUE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_check_package_elements + * + * PARAMETERS: Pathname - Full pathname to the node (for error msgs) + * Elements - Pointer to the package elements array + * Type1 - Object type for first group + * Count1 - Count for first group + * Type2 - Object type for second group + * Count2 - Count for second group + * + * RETURN: Status + * + * DESCRIPTION: Check that all elements of a package are of the correct object + * type. Supports up to two groups of different object types. + * + ******************************************************************************/ + +static acpi_status +acpi_ns_check_package_elements(char *pathname, + union acpi_operand_object **elements, + u8 type1, u32 count1, u8 type2, u32 count2) +{ + union acpi_operand_object **this_element = elements; + acpi_status status; + u32 i; + + /* + * Up to two groups of package elements are supported by the data + * structure. All elements in each group must be of the same type. + * The second group can have a count of zero. + */ + for (i = 0; i < count1; i++) { + status = acpi_ns_check_object_type(pathname, *this_element, + type1, i); + if (ACPI_FAILURE(status)) { + return (status); + } + this_element++; + } + + for (i = 0; i < count2; i++) { + status = acpi_ns_check_object_type(pathname, *this_element, + type2, (i + count1)); + if (ACPI_FAILURE(status)) { + return (status); + } + this_element++; + } + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_check_object_type + * + * PARAMETERS: Pathname - Full pathname to the node (for error msgs) + * return_object - Object return from the execution of this + * method/object + * expected_btypes - Bitmap of expected return type(s) + * package_index - Index of object within parent package (if + * applicable - ACPI_NOT_PACKAGE otherwise) + * + * RETURN: Status + * + * DESCRIPTION: Check the type of the return object against the expected object + * type(s). Use of Btype allows multiple expected object types. + * + ******************************************************************************/ + +static acpi_status +acpi_ns_check_object_type(char *pathname, + union acpi_operand_object *return_object, + u32 expected_btypes, u32 package_index) +{ + acpi_status status = AE_OK; + u32 return_btype; + char type_buffer[48]; /* Room for 5 types */ + u32 this_rtype; + u32 i; + u32 j; + + /* + * If we get a NULL return_object here, it is a NULL package element, + * and this is always an error. + */ + if (!return_object) { + goto type_error_exit; + } + + /* A Namespace node should not get here, but make sure */ + + if (ACPI_GET_DESCRIPTOR_TYPE(return_object) == ACPI_DESC_TYPE_NAMED) { + ACPI_WARNING((AE_INFO, + "%s: Invalid return type - Found a Namespace node [%4.4s] type %s", + pathname, return_object->node.name.ascii, + acpi_ut_get_type_name(return_object->node.type))); + return (AE_AML_OPERAND_TYPE); + } + + /* + * Convert the object type (ACPI_TYPE_xxx) to a bitmapped object type. + * The bitmapped type allows multiple possible return types. + * + * Note, the cases below must handle all of the possible types returned + * from all of the predefined names (including elements of returned + * packages) + */ + switch (ACPI_GET_OBJECT_TYPE(return_object)) { + case ACPI_TYPE_INTEGER: + return_btype = ACPI_RTYPE_INTEGER; + break; + + case ACPI_TYPE_BUFFER: + return_btype = ACPI_RTYPE_BUFFER; + break; + + case ACPI_TYPE_STRING: + return_btype = ACPI_RTYPE_STRING; + break; + + case ACPI_TYPE_PACKAGE: + return_btype = ACPI_RTYPE_PACKAGE; + break; + + case ACPI_TYPE_LOCAL_REFERENCE: + return_btype = ACPI_RTYPE_REFERENCE; + break; + + default: + /* Not one of the supported objects, must be incorrect */ + + goto type_error_exit; + } + + /* Is the object one of the expected types? */ + + if (!(return_btype & expected_btypes)) { + goto type_error_exit; + } + + /* For reference objects, check that the reference type is correct */ + + if (ACPI_GET_OBJECT_TYPE(return_object) == ACPI_TYPE_LOCAL_REFERENCE) { + status = acpi_ns_check_reference(pathname, return_object); + } + + return (status); + + type_error_exit: + + /* Create a string with all expected types for this predefined object */ + + j = 1; + type_buffer[0] = 0; + this_rtype = ACPI_RTYPE_INTEGER; + + for (i = 0; i < ACPI_NUM_RTYPES; i++) { + + /* If one of the expected types, concatenate the name of this type */ + + if (expected_btypes & this_rtype) { + ACPI_STRCAT(type_buffer, &acpi_rtype_names[i][j]); + j = 0; /* Use name separator from now on */ + } + this_rtype <<= 1; /* Next Rtype */ + } + + if (package_index == ACPI_NOT_PACKAGE) { + ACPI_WARNING((AE_INFO, + "%s: Return type mismatch - found %s, expected %s", + pathname, + acpi_ut_get_object_type_name(return_object), + type_buffer)); + } else { + ACPI_WARNING((AE_INFO, + "%s: Return Package type mismatch at index %u - " + "found %s, expected %s", pathname, package_index, + acpi_ut_get_object_type_name(return_object), + type_buffer)); + } + + return (AE_AML_OPERAND_TYPE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_check_reference + * + * PARAMETERS: Pathname - Full pathname to the node (for error msgs) + * return_object - Object returned from the evaluation of a + * method or object + * + * RETURN: Status + * + * DESCRIPTION: Check a returned reference object for the correct reference + * type. The only reference type that can be returned from a + * predefined method is a named reference. All others are invalid. + * + ******************************************************************************/ + +static acpi_status +acpi_ns_check_reference(char *pathname, + union acpi_operand_object *return_object) +{ + + /* + * Check the reference object for the correct reference type (opcode). + * The only type of reference that can be converted to an union acpi_object is + * a reference to a named object (reference class: NAME) + */ + if (return_object->reference.class == ACPI_REFCLASS_NAME) { + return (AE_OK); + } + + ACPI_WARNING((AE_INFO, + "%s: Return type mismatch - unexpected reference object type [%s] %2.2X", + pathname, acpi_ut_get_reference_name(return_object), + return_object->reference.class)); + + return (AE_AML_OPERAND_TYPE); +} diff --git a/include/acpi/acdebug.h b/include/acpi/acdebug.h index a4fb001d96f1..62c59df3b86c 100644 --- a/include/acpi/acdebug.h +++ b/include/acpi/acdebug.h @@ -154,6 +154,10 @@ void acpi_db_display_argument_object(union acpi_operand_object *obj_desc, struct acpi_walk_state *walk_state); +void acpi_db_check_predefined_names(void); + +void acpi_db_batch_execute(void); + /* * dbexec - debugger control method execution */ diff --git a/include/acpi/aclocal.h b/include/acpi/aclocal.h index b221c8583ddd..ecab527cf78e 100644 --- a/include/acpi/aclocal.h +++ b/include/acpi/aclocal.h @@ -208,6 +208,7 @@ struct acpi_namespace_node { #define ANOBJ_METHOD_ARG 0x04 /* Node is a method argument */ #define ANOBJ_METHOD_LOCAL 0x08 /* Node is a method local */ #define ANOBJ_SUBTREE_HAS_INI 0x10 /* Used to optimize device initialization */ +#define ANOBJ_EVALUATED 0x20 /* Set on first evaluation of node */ #define ANOBJ_IS_EXTERNAL 0x08 /* i_aSL only: This object created via External() */ #define ANOBJ_METHOD_NO_RETVAL 0x10 /* i_aSL only: Method has no return value */ @@ -340,6 +341,82 @@ acpi_status(*ACPI_INTERNAL_METHOD) (struct acpi_walk_state * walk_state); #define ACPI_BTYPE_OBJECTS_AND_REFS 0x0001FFFF /* ARG or LOCAL */ #define ACPI_BTYPE_ALL_OBJECTS 0x0000FFFF +/* + * Information structure for ACPI predefined names. + * Each entry in the table contains the following items: + * + * Name - The ACPI reserved name + * param_count - Number of arguments to the method + * expected_return_btypes - Allowed type(s) for the return value + */ +struct acpi_name_info { + char name[ACPI_NAME_SIZE]; + u8 param_count; + u8 expected_btypes; +}; + +/* + * Secondary information structures for ACPI predefined objects that return + * package objects. This structure appears as the next entry in the table + * after the NAME_INFO structure above. + * + * The reason for this is to minimize the size of the predefined name table. + */ + +/* + * Used for ACPI_PTYPE1_FIXED, ACPI_PTYPE1_VAR, ACPI_PTYPE2, + * ACPI_PTYPE2_MIN, ACPI_PTYPE2_PKG_COUNT, ACPI_PTYPE2_COUNT + */ +struct acpi_package_info { + u8 type; + u8 object_type1; + u8 count1; + u8 object_type2; + u8 count2; + u8 reserved; +}; + +/* Used for ACPI_PTYPE2_FIXED */ + +struct acpi_package_info2 { + u8 type; + u8 count; + u8 object_type[4]; +}; + +/* Used for ACPI_PTYPE1_OPTION */ + +struct acpi_package_info3 { + u8 type; + u8 count; + u8 object_type[2]; + u8 tail_object_type; + u8 reserved; +}; + +union acpi_predefined_info { + struct acpi_name_info info; + struct acpi_package_info ret_info; + struct acpi_package_info2 ret_info2; + struct acpi_package_info3 ret_info3; +}; + +/* + * Bitmapped return value types + * Note: the actual data types must be contiguous, a loop in nspredef.c + * depends on this. + */ +#define ACPI_RTYPE_ANY 0x00 +#define ACPI_RTYPE_NONE 0x01 +#define ACPI_RTYPE_INTEGER 0x02 +#define ACPI_RTYPE_STRING 0x04 +#define ACPI_RTYPE_BUFFER 0x08 +#define ACPI_RTYPE_PACKAGE 0x10 +#define ACPI_RTYPE_REFERENCE 0x20 +#define ACPI_RTYPE_ALL 0x3F + +#define ACPI_NUM_RTYPES 5 /* Number of actual object types */ + /***************************************************************************** * * Event typedefs and structs diff --git a/include/acpi/acnamesp.h b/include/acpi/acnamesp.h index c34008507b69..db4e6f677855 100644 --- a/include/acpi/acnamesp.h +++ b/include/acpi/acnamesp.h @@ -178,6 +178,22 @@ acpi_ns_dump_objects(acpi_object_type type, acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info); /* + * nspredef - Support for predefined/reserved names + */ +acpi_status +acpi_ns_check_predefined_names(struct acpi_namespace_node *node, + union acpi_operand_object *return_object); + +const union acpi_predefined_info *acpi_ns_check_for_predefined_name(struct + acpi_namespace_node + *node); + +void +acpi_ns_check_parameter_count(char *pathname, + struct acpi_namespace_node *node, + const union acpi_predefined_info *info); + +/* * nsnames - Name and Scope manipulation */ u32 acpi_ns_opens_scope(acpi_object_type type); diff --git a/include/acpi/acpredef.h b/include/acpi/acpredef.h new file mode 100644 index 000000000000..619fb75f8861 --- /dev/null +++ b/include/acpi/acpredef.h @@ -0,0 +1,371 @@ +/****************************************************************************** + * + * Name: acpredef - Information table for ACPI predefined methods and objects + * $Revision: 1.1 $ + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2008, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#ifndef __ACPREDEF_H__ +#define __ACPREDEF_H__ + +/****************************************************************************** + * + * Return Package types + * + * 1) PTYPE1 packages do not contain sub-packages. + * + * ACPI_PTYPE1_FIXED: Fixed length, 1 or 2 object types: + * object type + * count + * object type + * count + * + * ACPI_PTYPE1_VAR: Variable length: + * object type (Int/Buf/Ref) + * + * ACPI_PTYPE1_OPTION: Package has some required and some optional elements: + * Used for _PRW + * + * + * 2) PTYPE2 packages contain a variable number of sub-packages. Each of the + * different types describe the contents of each of the sub-packages. + * + * ACPI_PTYPE2: Each subpackage contains 1 or 2 object types: + * object type + * count + * object type + * count + * + * ACPI_PTYPE2_COUNT: Each subpackage has a count as first element: + * object type + * + * ACPI_PTYPE2_PKG_COUNT: Count of subpackages at start, 1 or 2 object types: + * object type + * count + * object type + * count + * + * ACPI_PTYPE2_FIXED: Each subpackage is of fixed length: + * Used for _PRT + * + * ACPI_PTYPE2_MIN: Each subpackage has a variable but minimum length + * Used for _HPX + * + *****************************************************************************/ + +enum acpi_return_package_types { + ACPI_PTYPE1_FIXED = 1, + ACPI_PTYPE1_VAR = 2, + ACPI_PTYPE1_OPTION = 3, + ACPI_PTYPE2 = 4, + ACPI_PTYPE2_COUNT = 5, + ACPI_PTYPE2_PKG_COUNT = 6, + ACPI_PTYPE2_FIXED = 7, + ACPI_PTYPE2_MIN = 8 +}; + +/* + * Predefined method/object information table. + * + * These are the names that can actually be evaluated via acpi_evaluate_object. + * Not present in this table are the following: + * + * 1) Predefined/Reserved names that are never evaluated via acpi_evaluate_object: + * _Lxx and _Exx GPE methods + * _Qxx EC methods + * _T_x compiler temporary variables + * + * 2) Predefined names that never actually exist within the AML code: + * Predefined resource descriptor field names + * + * 3) Predefined names that are implemented within ACPICA: + * _OSI + * + * 4) Some predefined names that are not documented within the ACPI spec. + * _WDG, _WED + * + * The main entries in the table each contain the following items: + * + * Name - The ACPI reserved name + * param_count - Number of arguments to the method + * expected_btypes - Allowed type(s) for the return value. + * 0 means that no return value is expected. + * + * For methods that return packages, the next entry in the table contains + * information about the expected structure of the package. This information + * is saved here (rather than in a separate table) in order to minimize the + * overall size of the stored data. + */ +static const union acpi_predefined_info predefined_names[] = { + {.info = {"_AC0", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_AC1", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_AC2", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_AC3", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_AC4", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_AC5", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_AC6", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_AC7", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_AC8", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_AC9", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_ADR", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_AL0", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ + {.info = {"_AL1", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ + {.info = {"_AL2", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ + {.info = {"_AL3", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ + {.info = {"_AL4", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ + {.info = {"_AL5", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ + {.info = {"_AL6", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ + {.info = {"_AL7", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ + {.info = {"_AL8", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ + {.info = {"_AL9", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ + {.info = {"_ALC", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_ALI", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_ALP", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_ALR", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2, ACPI_RTYPE_INTEGER, 2, 0, 0, 0}}, /* variable (Pkgs) each 2 (Ints) */ + {.info = {"_ALT", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_BBN", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_BCL", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 0, 0, 0, 0}}, /* variable (Ints) */ + {.info = {"_BCM", 1, 0}}, + {.info = {"_BDN", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_BFS", 1, 0}}, + {.info = {"_BIF", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, + 9, + ACPI_RTYPE_STRING, 4, 0}}, /* fixed (9 Int),(4 Str) */ + {.info = {"_BLT", 3, 0}}, + {.info = {"_BMC", 1, 0}}, + {.info = {"_BMD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 5, 0, 0, 0}}, /* fixed (5 Int) */ + {.info = {"_BQC", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_BST", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4, 0, 0, 0}}, /* fixed (4 Int) */ + {.info = {"_BTM", 1, ACPI_RTYPE_INTEGER}}, + {.info = {"_BTP", 1, 0}}, + {.info = {"_CBA", 0, ACPI_RTYPE_INTEGER}}, /* see PCI firmware spec 3.0 */ + {.info = {"_CID", 0, + ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING | ACPI_RTYPE_PACKAGE}}, + {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING, 0, 0, 0, 0}}, /* variable (Ints/Strs) */ + {.info = {"_CRS", 0, ACPI_RTYPE_BUFFER}}, + {.info = {"_CRT", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_CSD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_COUNT, ACPI_RTYPE_INTEGER, 0, 0, 0, 0}}, /* variable (1 Int(n), n-1 Int) */ + {.info = {"_CST", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_PKG_COUNT, + ACPI_RTYPE_BUFFER, 1, + ACPI_RTYPE_INTEGER, 3, 0}}, /* variable (1 Int(n), n Pkg (1 Buf/3 Int) */ + {.info = {"_DCK", 1, ACPI_RTYPE_INTEGER}}, + {.info = {"_DCS", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_DDC", 1, ACPI_RTYPE_INTEGER | ACPI_RTYPE_BUFFER}}, + {.info = {"_DDN", 0, ACPI_RTYPE_STRING}}, + {.info = {"_DGS", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_DIS", 0, 0}}, + {.info = {"_DMA", 0, ACPI_RTYPE_BUFFER}}, + {.info = {"_DOD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 0, 0, 0, 0}}, /* variable (Ints) */ + {.info = {"_DOS", 1, 0}}, + {.info = {"_DSM", 4, ACPI_RTYPE_ALL}}, /* Must return a type, but it can be of any type */ + {.info = {"_DSS", 1, 0}}, + {.info = {"_DSW", 3, 0}}, + {.info = {"_EC_", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_EDL", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ + {.info = {"_EJ0", 1, 0}}, + {.info = {"_EJ1", 1, 0}}, + {.info = {"_EJ2", 1, 0}}, + {.info = {"_EJ3", 1, 0}}, + {.info = {"_EJ4", 1, 0}}, + {.info = {"_EJD", 0, ACPI_RTYPE_STRING}}, + {.info = {"_FDE", 0, ACPI_RTYPE_BUFFER}}, + {.info = {"_FDI", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 16, 0, 0, 0}}, /* fixed (16 Int) */ + {.info = {"_FDM", 1, 0}}, + {.info = {"_FIX", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 0, 0, 0, 0}}, /* variable (Ints) */ + {.info = {"_GLK", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_GPD", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_GPE", 0, ACPI_RTYPE_INTEGER}}, /* _GPE method, not _GPE scope */ + {.info = {"_GSB", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_GTF", 0, ACPI_RTYPE_BUFFER}}, + {.info = {"_GTM", 0, ACPI_RTYPE_BUFFER}}, + {.info = {"_GTS", 1, 0}}, + {.info = {"_HID", 0, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING}}, + {.info = {"_HOT", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_HPP", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4, 0, 0, 0}}, /* fixed (4 Int) */ + + /* + * For _HPX, a single package is returned, containing a variable number of sub-packages. + * Each sub-package contains a PCI record setting. There are several different type of + * record settings, of different lengths, but all elements of all settings are Integers. + */ + {.info = {"_HPX", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_MIN, ACPI_RTYPE_INTEGER, 5, 0, 0, 0}}, /* variable (Pkgs) each (var Ints) */ + {.info = {"_IFT", 0, ACPI_RTYPE_INTEGER}}, /* see IPMI spec */ + {.info = {"_INI", 0, 0}}, + {.info = {"_IRC", 0, 0}}, + {.info = {"_LCK", 1, 0}}, + {.info = {"_LID", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_MAT", 0, ACPI_RTYPE_BUFFER}}, + {.info = {"_MLS", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2, ACPI_RTYPE_STRING, 2, 0, 0, 0}}, /* variable (Pkgs) each (2 Str) */ + {.info = {"_MSG", 1, 0}}, + {.info = {"_OFF", 0, 0}}, + {.info = {"_ON_", 0, 0}}, + {.info = {"_OS_", 0, ACPI_RTYPE_STRING}}, + {.info = {"_OSC", 4, ACPI_RTYPE_BUFFER}}, + {.info = {"_OST", 3, 0}}, + {.info = {"_PCL", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ + {.info = {"_PCT", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_BUFFER, 2, 0, 0, 0}}, /* fixed (2 Buf) */ + {.info = {"_PDC", 1, 0}}, + {.info = {"_PIC", 1, 0}}, + {.info = {"_PLD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_BUFFER, 0, 0, 0, 0}}, /* variable (Bufs) */ + {.info = {"_PPC", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_PPE", 0, ACPI_RTYPE_INTEGER}}, /* see dig64 spec */ + {.info = {"_PR0", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ + {.info = {"_PR1", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ + {.info = {"_PR2", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ + {.info = {"_PRS", 0, ACPI_RTYPE_BUFFER}}, + + /* + * For _PRT, many BIOSs reverse the 2nd and 3rd Package elements. This bug is so prevalent that there + * is code in the ACPICA Resource Manager to detect this and switch them back. For now, do not allow + * and issue a warning. To allow this and eliminate the warning, add the ACPI_RTYPE_REFERENCE + * type to the 2nd element (index 1) in the statement below. + */ + {.info = {"_PRT", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_FIXED, 4, + ACPI_RTYPE_INTEGER, + ACPI_RTYPE_INTEGER, + ACPI_RTYPE_INTEGER | ACPI_RTYPE_REFERENCE, ACPI_RTYPE_INTEGER}}, /* variable (Pkgs) each (4): Int,Int,Int/Ref,Int */ + + {.info = {"_PRW", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_OPTION, 2, + ACPI_RTYPE_INTEGER | + ACPI_RTYPE_PACKAGE, + ACPI_RTYPE_INTEGER, ACPI_RTYPE_REFERENCE, 0}}, /* variable (Pkgs) each: Pkg/Int,Int,[variable Refs] (Pkg is Ref/Int) */ + + {.info = {"_PS0", 0, 0}}, + {.info = {"_PS1", 0, 0}}, + {.info = {"_PS2", 0, 0}}, + {.info = {"_PS3", 0, 0}}, + {.info = {"_PSC", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_PSD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_COUNT, ACPI_RTYPE_INTEGER, 0, 0, 0, 0}}, /* variable (Pkgs) each (5 Int) with count */ + {.info = {"_PSL", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ + {.info = {"_PSR", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_PSS", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2, ACPI_RTYPE_INTEGER, 6, 0, 0, 0}}, /* variable (Pkgs) each (6 Int) */ + {.info = {"_PSV", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_PSW", 1, 0}}, + {.info = {"_PTC", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_BUFFER, 2, 0, 0, 0}}, /* fixed (2 Buf) */ + {.info = {"_PTS", 1, 0}}, + {.info = {"_PXM", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_REG", 2, 0}}, + {.info = {"_REV", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_RMV", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_ROM", 2, ACPI_RTYPE_BUFFER}}, + {.info = {"_RTV", 0, ACPI_RTYPE_INTEGER}}, + + /* + * For _S0_ through _S5_, the ACPI spec defines a return Package containing 1 Integer, + * but most DSDTs have it wrong - 2,3, or 4 integers. Allow this by making the objects "variable length", + * but all elements must be Integers. + */ + {.info = {"_S0_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}}, /* fixed (1 Int) */ + {.info = {"_S1_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}}, /* fixed (1 Int) */ + {.info = {"_S2_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}}, /* fixed (1 Int) */ + {.info = {"_S3_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}}, /* fixed (1 Int) */ + {.info = {"_S4_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}}, /* fixed (1 Int) */ + {.info = {"_S5_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}}, /* fixed (1 Int) */ + + {.info = {"_S1D", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_S2D", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_S3D", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_S4D", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_S0W", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_S1W", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_S2W", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_S3W", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_S4W", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_SBS", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_SCP", 0x13, 0}}, /* Acpi 1.0 allowed 1 arg. Acpi 3.0 expanded to 3 args. Allow both. */ + /* Note: the 3-arg definition may be removed for ACPI 4.0 */ + {.info = {"_SDD", 1, 0}}, + {.info = {"_SEG", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_SLI", 0, ACPI_RTYPE_BUFFER}}, + {.info = {"_SPD", 1, ACPI_RTYPE_INTEGER}}, + {.info = {"_SRS", 1, 0}}, + {.info = {"_SRV", 0, ACPI_RTYPE_INTEGER}}, /* see IPMI spec */ + {.info = {"_SST", 1, 0}}, + {.info = {"_STA", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_STM", 3, 0}}, + {.info = {"_STR", 0, ACPI_RTYPE_BUFFER}}, + {.info = {"_SUN", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_SWS", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_TC1", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_TC2", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_TMP", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_TPC", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_TPT", 1, 0}}, + {.info = {"_TRT", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2, ACPI_RTYPE_REFERENCE, 2, + ACPI_RTYPE_INTEGER, 6, 0}}, /* variable (Pkgs) each 2_ref/6_int */ + {.info = {"_TSD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_COUNT, ACPI_RTYPE_INTEGER, 5, 0, 0, 0}}, /* variable (Pkgs) each 5_int with count */ + {.info = {"_TSP", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_TSS", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2, ACPI_RTYPE_INTEGER, 5, 0, 0, 0}}, /* variable (Pkgs) each 5_int */ + {.info = {"_TST", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_TTS", 1, 0}}, + {.info = {"_TZD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ + {.info = {"_TZM", 0, ACPI_RTYPE_REFERENCE}}, + {.info = {"_TZP", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_UID", 0, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING}}, + {.info = {"_UPC", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4, 0, 0, 0}}, /* fixed (4 Int) */ + {.info = {"_UPD", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_UPP", 0, ACPI_RTYPE_INTEGER}}, + {.info = {"_VPO", 0, ACPI_RTYPE_INTEGER}}, + + /* Acpi 1.0 defined _WAK with no return value. Later, it was changed to return a package */ + + {.info = {"_WAK", 1, ACPI_RTYPE_NONE | ACPI_RTYPE_PACKAGE}}, + {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 2, 0, 0, 0}}, /* fixed (2 Int), but is optional */ + {.ret_info = {0, 0, 0, 0, 0, 0}} /* Table terminator */ +}; + +#if 0 + /* Not implemented */ + +{ +"_WDG", 0, ACPI_RTYPE_BUFFER}, /* MS Extension */ + +{ +"_WED", 1, ACPI_RTYPE_PACKAGE}, /* MS Extension */ + + /* This is an internally implemented control method, no need to check */ +{ +"_OSI", 1, ACPI_RTYPE_INTEGER}, + + /* TBD: */ + _PRT - currently ignore reversed entries.attempt to fix here ? + think about code that attempts to fix package elements like _BIF, etc. +#endif +#endif |