[ACPI] ACPICA 20060127
[linux-2.6-block.git] / drivers / acpi / utilities / utobject.c
index cd3899b9cc5a6d7dc4fc3af9d5a71daac6489070..7ee2d1d980719e40cf8115064e26401b7f228029 100644 (file)
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2005, R. Byron Moore
+ * Copyright (C) 2000 - 2006, R. Byron Moore
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-
 #include <acpi/acpi.h>
 #include <acpi/acnamesp.h>
 #include <acpi/amlcode.h>
 
-
 #define _COMPONENT          ACPI_UTILITIES
-        ACPI_MODULE_NAME    ("utobject")
+ACPI_MODULE_NAME("utobject")
 
 /* Local prototypes */
-
 static acpi_status
-acpi_ut_get_simple_object_size (
-       union acpi_operand_object       *obj,
-       acpi_size                       *obj_length);
+acpi_ut_get_simple_object_size(union acpi_operand_object *obj,
+                              acpi_size * obj_length);
 
 static acpi_status
-acpi_ut_get_package_object_size (
-       union acpi_operand_object       *obj,
-       acpi_size                       *obj_length);
+acpi_ut_get_package_object_size(union acpi_operand_object *obj,
+                               acpi_size * obj_length);
 
 static acpi_status
-acpi_ut_get_element_length (
-       u8                              object_type,
-       union acpi_operand_object       *source_object,
-       union acpi_generic_state        *state,
-       void                            *context);
-
+acpi_ut_get_element_length(u8 object_type,
+                          union acpi_operand_object *source_object,
+                          union acpi_generic_state *state, void *context);
 
 /*******************************************************************************
  *
@@ -91,26 +83,25 @@ acpi_ut_get_element_length (
  *
  ******************************************************************************/
 
-union acpi_operand_object    *
-acpi_ut_create_internal_object_dbg (
-       char                            *module_name,
-       u32                             line_number,
-       u32                             component_id,
-       acpi_object_type                type)
+union acpi_operand_object *acpi_ut_create_internal_object_dbg(char *module_name,
+                                                             u32 line_number,
+                                                             u32 component_id,
+                                                             acpi_object_type
+                                                             type)
 {
-       union acpi_operand_object       *object;
-       union acpi_operand_object       *second_object;
-
-
-       ACPI_FUNCTION_TRACE_STR ("ut_create_internal_object_dbg",
-               acpi_ut_get_type_name (type));
+       union acpi_operand_object *object;
+       union acpi_operand_object *second_object;
 
+       ACPI_FUNCTION_TRACE_STR("ut_create_internal_object_dbg",
+                               acpi_ut_get_type_name(type));
 
        /* Allocate the raw object descriptor */
 
-       object = acpi_ut_allocate_object_desc_dbg (module_name, line_number, component_id);
+       object =
+           acpi_ut_allocate_object_desc_dbg(module_name, line_number,
+                                            component_id);
        if (!object) {
-               return_PTR (NULL);
+               return_PTR(NULL);
        }
 
        switch (type) {
@@ -119,11 +110,12 @@ acpi_ut_create_internal_object_dbg (
 
                /* These types require a secondary object */
 
-               second_object = acpi_ut_allocate_object_desc_dbg (module_name,
-                                  line_number, component_id);
+               second_object = acpi_ut_allocate_object_desc_dbg(module_name,
+                                                                line_number,
+                                                                component_id);
                if (!second_object) {
-                       acpi_ut_delete_object_desc (object);
-                       return_PTR (NULL);
+                       acpi_ut_delete_object_desc(object);
+                       return_PTR(NULL);
                }
 
                second_object->common.type = ACPI_TYPE_LOCAL_EXTRA;
@@ -149,10 +141,9 @@ acpi_ut_create_internal_object_dbg (
 
        /* Any per-type initialization should go here */
 
-       return_PTR (object);
+       return_PTR(object);
 }
 
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_create_buffer_object
@@ -165,22 +156,18 @@ acpi_ut_create_internal_object_dbg (
  *
  ******************************************************************************/
 
-union acpi_operand_object *
-acpi_ut_create_buffer_object (
-       acpi_size                       buffer_size)
+union acpi_operand_object *acpi_ut_create_buffer_object(acpi_size buffer_size)
 {
-       union acpi_operand_object       *buffer_desc;
-       u8                              *buffer = NULL;
-
-
-       ACPI_FUNCTION_TRACE_U32 ("ut_create_buffer_object", buffer_size);
+       union acpi_operand_object *buffer_desc;
+       u8 *buffer = NULL;
 
+       ACPI_FUNCTION_TRACE_U32("ut_create_buffer_object", buffer_size);
 
        /* Create a new Buffer object */
 
-       buffer_desc = acpi_ut_create_internal_object (ACPI_TYPE_BUFFER);
+       buffer_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER);
        if (!buffer_desc) {
-               return_PTR (NULL);
+               return_PTR(NULL);
        }
 
        /* Create an actual buffer only if size > 0 */
@@ -188,12 +175,12 @@ acpi_ut_create_buffer_object (
        if (buffer_size > 0) {
                /* Allocate the actual buffer */
 
-               buffer = ACPI_MEM_CALLOCATE (buffer_size);
+               buffer = ACPI_MEM_CALLOCATE(buffer_size);
                if (!buffer) {
-                       ACPI_REPORT_ERROR (("create_buffer: could not allocate size %X\n",
-                               (u32) buffer_size));
-                       acpi_ut_remove_reference (buffer_desc);
-                       return_PTR (NULL);
+                       ACPI_ERROR((AE_INFO, "Could not allocate size %X",
+                                   (u32) buffer_size));
+                       acpi_ut_remove_reference(buffer_desc);
+                       return_PTR(NULL);
                }
        }
 
@@ -205,10 +192,9 @@ acpi_ut_create_buffer_object (
 
        /* Return the new buffer descriptor */
 
-       return_PTR (buffer_desc);
+       return_PTR(buffer_desc);
 }
 
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_create_string_object
@@ -223,34 +209,30 @@ acpi_ut_create_buffer_object (
  *
  ******************************************************************************/
 
-union acpi_operand_object *
-acpi_ut_create_string_object (
-       acpi_size                       string_size)
+union acpi_operand_object *acpi_ut_create_string_object(acpi_size string_size)
 {
-       union acpi_operand_object       *string_desc;
-       char                            *string;
-
-
-       ACPI_FUNCTION_TRACE_U32 ("ut_create_string_object", string_size);
+       union acpi_operand_object *string_desc;
+       char *string;
 
+       ACPI_FUNCTION_TRACE_U32("ut_create_string_object", string_size);
 
        /* Create a new String object */
 
-       string_desc = acpi_ut_create_internal_object (ACPI_TYPE_STRING);
+       string_desc = acpi_ut_create_internal_object(ACPI_TYPE_STRING);
        if (!string_desc) {
-               return_PTR (NULL);
+               return_PTR(NULL);
        }
 
        /*
         * Allocate the actual string buffer -- (Size + 1) for NULL terminator.
         * NOTE: Zero-length strings are NULL terminated
         */
-       string = ACPI_MEM_CALLOCATE (string_size + 1);
+       string = ACPI_MEM_CALLOCATE(string_size + 1);
        if (!string) {
-               ACPI_REPORT_ERROR (("create_string: could not allocate size %X\n",
-                       (u32) string_size));
-               acpi_ut_remove_reference (string_desc);
-               return_PTR (NULL);
+               ACPI_ERROR((AE_INFO, "Could not allocate size %X",
+                           (u32) string_size));
+               acpi_ut_remove_reference(string_desc);
+               return_PTR(NULL);
        }
 
        /* Complete string object initialization */
@@ -260,10 +242,9 @@ acpi_ut_create_string_object (
 
        /* Return the new string descriptor */
 
-       return_PTR (string_desc);
+       return_PTR(string_desc);
 }
 
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_valid_internal_object
@@ -276,24 +257,21 @@ acpi_ut_create_string_object (
  *
  ******************************************************************************/
 
-u8
-acpi_ut_valid_internal_object (
-       void                            *object)
+u8 acpi_ut_valid_internal_object(void *object)
 {
 
-       ACPI_FUNCTION_NAME ("ut_valid_internal_object");
-
+       ACPI_FUNCTION_NAME("ut_valid_internal_object");
 
        /* Check for a null pointer */
 
        if (!object) {
-               ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "**** Null Object Ptr\n"));
+               ACPI_DEBUG_PRINT((ACPI_DB_INFO, "**** Null Object Ptr\n"));
                return (FALSE);
        }
 
        /* Check the descriptor type field */
 
-       switch (ACPI_GET_DESCRIPTOR_TYPE (object)) {
+       switch (ACPI_GET_DESCRIPTOR_TYPE(object)) {
        case ACPI_DESC_TYPE_OPERAND:
 
                /* The object appears to be a valid union acpi_operand_object    */
@@ -301,16 +279,15 @@ acpi_ut_valid_internal_object (
                return (TRUE);
 
        default:
-               ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
-                               "%p is not not an ACPI operand obj [%s]\n",
-                               object, acpi_ut_get_descriptor_name (object)));
+               ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+                                 "%p is not not an ACPI operand obj [%s]\n",
+                                 object, acpi_ut_get_descriptor_name(object)));
                break;
        }
 
        return (FALSE);
 }
 
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_allocate_object_desc_dbg
@@ -326,37 +303,31 @@ acpi_ut_valid_internal_object (
  *
  ******************************************************************************/
 
-void *
-acpi_ut_allocate_object_desc_dbg (
-       char                            *module_name,
-       u32                             line_number,
-       u32                             component_id)
+void *acpi_ut_allocate_object_desc_dbg(char *module_name,
+                                      u32 line_number, u32 component_id)
 {
-       union acpi_operand_object       *object;
+       union acpi_operand_object *object;
 
+       ACPI_FUNCTION_TRACE("ut_allocate_object_desc_dbg");
 
-       ACPI_FUNCTION_TRACE ("ut_allocate_object_desc_dbg");
-
-
-       object = acpi_ut_acquire_from_cache (ACPI_MEM_LIST_OPERAND);
+       object = acpi_os_acquire_object(acpi_gbl_operand_cache);
        if (!object) {
-               _ACPI_REPORT_ERROR (module_name, line_number, component_id,
-                                 ("Could not allocate an object descriptor\n"));
+               ACPI_ERROR((module_name, line_number,
+                           "Could not allocate an object descriptor"));
 
-               return_PTR (NULL);
+               return_PTR(NULL);
        }
 
        /* Mark the descriptor type */
+       memset(object, 0, sizeof(union acpi_operand_object));
+       ACPI_SET_DESCRIPTOR_TYPE(object, ACPI_DESC_TYPE_OPERAND);
 
-       ACPI_SET_DESCRIPTOR_TYPE (object, ACPI_DESC_TYPE_OPERAND);
+       ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "%p Size %X\n",
+                         object, (u32) sizeof(union acpi_operand_object)));
 
-       ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "%p Size %X\n",
-                       object, (u32) sizeof (union acpi_operand_object)));
-
-       return_PTR (object);
+       return_PTR(object);
 }
 
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_delete_object_desc
@@ -369,54 +340,22 @@ acpi_ut_allocate_object_desc_dbg (
  *
  ******************************************************************************/
 
-void
-acpi_ut_delete_object_desc (
-       union acpi_operand_object       *object)
+void acpi_ut_delete_object_desc(union acpi_operand_object *object)
 {
-       ACPI_FUNCTION_TRACE_PTR ("ut_delete_object_desc", object);
-
+       ACPI_FUNCTION_TRACE_PTR("ut_delete_object_desc", object);
 
        /* Object must be an union acpi_operand_object    */
 
-       if (ACPI_GET_DESCRIPTOR_TYPE (object) != ACPI_DESC_TYPE_OPERAND) {
-               ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
-                               "%p is not an ACPI Operand object [%s]\n", object,
-                               acpi_ut_get_descriptor_name (object)));
+       if (ACPI_GET_DESCRIPTOR_TYPE(object) != ACPI_DESC_TYPE_OPERAND) {
+               ACPI_ERROR((AE_INFO,
+                           "%p is not an ACPI Operand object [%s]", object,
+                           acpi_ut_get_descriptor_name(object)));
                return_VOID;
        }
 
-       acpi_ut_release_to_cache (ACPI_MEM_LIST_OPERAND, object);
-
-       return_VOID;
-}
-
-
-#ifdef ACPI_ENABLE_OBJECT_CACHE
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_delete_object_cache
- *
- * PARAMETERS:  None
- *
- * RETURN:      None
- *
- * DESCRIPTION: Purge the global state object cache.  Used during subsystem
- *              termination.
- *
- ******************************************************************************/
-
-void
-acpi_ut_delete_object_cache (
-       void)
-{
-       ACPI_FUNCTION_TRACE ("ut_delete_object_cache");
-
-
-       acpi_ut_delete_generic_cache (ACPI_MEM_LIST_OPERAND);
+       (void)acpi_os_release_object(acpi_gbl_operand_cache, object);
        return_VOID;
 }
-#endif
-
 
 /*******************************************************************************
  *
@@ -436,16 +375,13 @@ acpi_ut_delete_object_cache (
  ******************************************************************************/
 
 static acpi_status
-acpi_ut_get_simple_object_size (
-       union acpi_operand_object       *internal_object,
-       acpi_size                       *obj_length)
+acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object,
+                              acpi_size * obj_length)
 {
-       acpi_size                       length;
-       acpi_status                     status = AE_OK;
-
-
-       ACPI_FUNCTION_TRACE_PTR ("ut_get_simple_object_size", internal_object);
+       acpi_size length;
+       acpi_status status = AE_OK;
 
+       ACPI_FUNCTION_TRACE_PTR("ut_get_simple_object_size", internal_object);
 
        /*
         * Handle a null object (Could be a uninitialized package
@@ -453,18 +389,18 @@ acpi_ut_get_simple_object_size (
         */
        if (!internal_object) {
                *obj_length = 0;
-               return_ACPI_STATUS (AE_OK);
+               return_ACPI_STATUS(AE_OK);
        }
 
        /* Start with the length of the Acpi object */
 
-       length = sizeof (union acpi_object);
+       length = sizeof(union acpi_object);
 
-       if (ACPI_GET_DESCRIPTOR_TYPE (internal_object) == ACPI_DESC_TYPE_NAMED) {
+       if (ACPI_GET_DESCRIPTOR_TYPE(internal_object) == ACPI_DESC_TYPE_NAMED) {
                /* Object is a named object (reference), just return the length */
 
-               *obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD (length);
-               return_ACPI_STATUS (status);
+               *obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length);
+               return_ACPI_STATUS(status);
        }
 
        /*
@@ -473,19 +409,17 @@ acpi_ut_get_simple_object_size (
         * must be accessed bytewise or there may be alignment problems on
         * certain processors
         */
-       switch (ACPI_GET_OBJECT_TYPE (internal_object)) {
+       switch (ACPI_GET_OBJECT_TYPE(internal_object)) {
        case ACPI_TYPE_STRING:
 
                length += (acpi_size) internal_object->string.length + 1;
                break;
 
-
        case ACPI_TYPE_BUFFER:
 
                length += (acpi_size) internal_object->buffer.length;
                break;
 
-
        case ACPI_TYPE_INTEGER:
        case ACPI_TYPE_PROCESSOR:
        case ACPI_TYPE_POWER:
@@ -495,7 +429,6 @@ acpi_ut_get_simple_object_size (
                 */
                break;
 
-
        case ACPI_TYPE_LOCAL_REFERENCE:
 
                switch (internal_object->reference.opcode) {
@@ -505,8 +438,10 @@ acpi_ut_get_simple_object_size (
                         * Get the actual length of the full pathname to this object.
                         * The reference will be converted to the pathname to the object
                         */
-                       length += ACPI_ROUND_UP_TO_NATIVE_WORD (
-                                        acpi_ns_get_pathname_length (internal_object->reference.node));
+                       length +=
+                           ACPI_ROUND_UP_TO_NATIVE_WORD
+                           (acpi_ns_get_pathname_length
+                            (internal_object->reference.node));
                        break;
 
                default:
@@ -516,19 +451,20 @@ acpi_ut_get_simple_object_size (
                         * Notably, Locals and Args are not supported, but this may be
                         * required eventually.
                         */
-                       ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
-                               "Unsupported Reference opcode=%X in object %p\n",
-                               internal_object->reference.opcode, internal_object));
+                       ACPI_ERROR((AE_INFO,
+                                   "Unsupported Reference opcode=%X in object %p",
+                                   internal_object->reference.opcode,
+                                   internal_object));
                        status = AE_TYPE;
                        break;
                }
                break;
 
-
        default:
 
-               ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unsupported type=%X in object %p\n",
-                       ACPI_GET_OBJECT_TYPE (internal_object), internal_object));
+               ACPI_ERROR((AE_INFO, "Unsupported type=%X in object %p",
+                           ACPI_GET_OBJECT_TYPE(internal_object),
+                           internal_object));
                status = AE_TYPE;
                break;
        }
@@ -539,11 +475,10 @@ acpi_ut_get_simple_object_size (
         * on a machine word boundary. (preventing alignment faults on some
         * machines.)
         */
-       *obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD (length);
-       return_ACPI_STATUS (status);
+       *obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length);
+       return_ACPI_STATUS(status);
 }
 
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_get_element_length
@@ -557,16 +492,13 @@ acpi_ut_get_simple_object_size (
  ******************************************************************************/
 
 static acpi_status
-acpi_ut_get_element_length (
-       u8                              object_type,
-       union acpi_operand_object       *source_object,
-       union acpi_generic_state        *state,
-       void                            *context)
+acpi_ut_get_element_length(u8 object_type,
+                          union acpi_operand_object *source_object,
+                          union acpi_generic_state *state, void *context)
 {
-       acpi_status                     status = AE_OK;
-       struct acpi_pkg_info            *info = (struct acpi_pkg_info *) context;
-       acpi_size                       object_space;
-
+       acpi_status status = AE_OK;
+       struct acpi_pkg_info *info = (struct acpi_pkg_info *)context;
+       acpi_size object_space;
 
        switch (object_type) {
        case ACPI_COPY_TYPE_SIMPLE:
@@ -575,15 +507,16 @@ acpi_ut_get_element_length (
                 * Simple object - just get the size (Null object/entry is handled
                 * here also) and sum it into the running package length
                 */
-               status = acpi_ut_get_simple_object_size (source_object, &object_space);
-               if (ACPI_FAILURE (status)) {
+               status =
+                   acpi_ut_get_simple_object_size(source_object,
+                                                  &object_space);
+               if (ACPI_FAILURE(status)) {
                        return (status);
                }
 
                info->length += object_space;
                break;
 
-
        case ACPI_COPY_TYPE_PACKAGE:
 
                /* Package object - nothing much to do here, let the walk handle it */
@@ -592,7 +525,6 @@ acpi_ut_get_element_length (
                state->pkg.this_target_obj = NULL;
                break;
 
-
        default:
 
                /* No other types allowed */
@@ -603,7 +535,6 @@ acpi_ut_get_element_length (
        return (status);
 }
 
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_get_package_object_size
@@ -622,25 +553,22 @@ acpi_ut_get_element_length (
  ******************************************************************************/
 
 static acpi_status
-acpi_ut_get_package_object_size (
-       union acpi_operand_object       *internal_object,
-       acpi_size                       *obj_length)
+acpi_ut_get_package_object_size(union acpi_operand_object *internal_object,
+                               acpi_size * obj_length)
 {
-       acpi_status                     status;
-       struct acpi_pkg_info            info;
+       acpi_status status;
+       struct acpi_pkg_info info;
 
+       ACPI_FUNCTION_TRACE_PTR("ut_get_package_object_size", internal_object);
 
-       ACPI_FUNCTION_TRACE_PTR ("ut_get_package_object_size", internal_object);
-
-
-       info.length      = 0;
+       info.length = 0;
        info.object_space = 0;
        info.num_packages = 1;
 
-       status = acpi_ut_walk_package_tree (internal_object, NULL,
-                        acpi_ut_get_element_length, &info);
-       if (ACPI_FAILURE (status)) {
-               return_ACPI_STATUS (status);
+       status = acpi_ut_walk_package_tree(internal_object, NULL,
+                                          acpi_ut_get_element_length, &info);
+       if (ACPI_FAILURE(status)) {
+               return_ACPI_STATUS(status);
        }
 
        /*
@@ -648,16 +576,15 @@ acpi_ut_get_package_object_size (
         * just add the length of the package objects themselves.
         * Round up to the next machine word.
         */
-       info.length += ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (union acpi_object)) *
-                         (acpi_size) info.num_packages;
+       info.length += ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object)) *
+           (acpi_size) info.num_packages;
 
        /* Return the total package length */
 
        *obj_length = info.length;
-       return_ACPI_STATUS (status);
+       return_ACPI_STATUS(status);
 }
 
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_get_object_size
@@ -673,25 +600,23 @@ acpi_ut_get_package_object_size (
  ******************************************************************************/
 
 acpi_status
-acpi_ut_get_object_size (
-       union acpi_operand_object       *internal_object,
-       acpi_size                       *obj_length)
+acpi_ut_get_object_size(union acpi_operand_object *internal_object,
+                       acpi_size * obj_length)
 {
-       acpi_status                     status;
-
-
-       ACPI_FUNCTION_ENTRY ();
-
-
-       if ((ACPI_GET_DESCRIPTOR_TYPE (internal_object) == ACPI_DESC_TYPE_OPERAND) &&
-               (ACPI_GET_OBJECT_TYPE (internal_object) == ACPI_TYPE_PACKAGE)) {
-               status = acpi_ut_get_package_object_size (internal_object, obj_length);
-       }
-       else {
-               status = acpi_ut_get_simple_object_size (internal_object, obj_length);
+       acpi_status status;
+
+       ACPI_FUNCTION_ENTRY();
+
+       if ((ACPI_GET_DESCRIPTOR_TYPE(internal_object) ==
+            ACPI_DESC_TYPE_OPERAND)
+           && (ACPI_GET_OBJECT_TYPE(internal_object) == ACPI_TYPE_PACKAGE)) {
+               status =
+                   acpi_ut_get_package_object_size(internal_object,
+                                                   obj_length);
+       } else {
+               status =
+                   acpi_ut_get_simple_object_size(internal_object, obj_length);
        }
 
        return (status);
 }
-
-