Pull bugzilla-5452 into release branch
[pandora-kernel.git] / drivers / acpi / utilities / uteval.c
index 7b81d5e..d6d7121 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
@@ -56,6 +56,34 @@ static acpi_status
 acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc,
                          struct acpi_compatible_id *one_cid);
 
+/*
+ * Strings supported by the _OSI predefined (internal) method.
+ */
+static const char *acpi_interfaces_supported[] = {
+       /* Operating System Vendor Strings */
+
+       "Linux",
+       "Windows 2000",
+       "Windows 2001",
+       "Windows 2001 SP0",
+       "Windows 2001 SP1",
+       "Windows 2001 SP2",
+       "Windows 2001 SP3",
+       "Windows 2001 SP4",
+       "Windows 2001.1",
+       "Windows 2001.1 SP1",   /* Added 03/2006 */
+       "Windows 2006",         /* Added 03/2006 */
+
+       /* Feature Group Strings */
+
+       "Extended Address Space Descriptor"
+           /*
+            * All "optional" feature group strings (features that are implemented
+            * by the host) should be implemented in the host version of
+            * acpi_os_validate_interface and should not be added here.
+            */
+};
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_osi_implementation
@@ -64,18 +92,18 @@ acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc,
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Implementation of _OSI predefined control method
- *              Supported = _OSI (String)
+ * DESCRIPTION: Implementation of the _OSI predefined control method
  *
  ******************************************************************************/
 
 acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state)
 {
+       acpi_status status;
        union acpi_operand_object *string_desc;
        union acpi_operand_object *return_desc;
        acpi_native_uint i;
 
-       ACPI_FUNCTION_TRACE("ut_osi_implementation");
+       ACPI_FUNCTION_TRACE(ut_osi_implementation);
 
        /* Validate the string input argument */
 
@@ -84,26 +112,47 @@ acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state)
                return_ACPI_STATUS(AE_TYPE);
        }
 
-       /* Create a return object (Default value = 0) */
+       /* Create a return object */
 
        return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
        if (!return_desc) {
                return_ACPI_STATUS(AE_NO_MEMORY);
        }
 
-       /* Compare input string to table of supported strings */
+       /* Default return value is SUPPORTED */
+
+       return_desc->integer.value = ACPI_UINT32_MAX;
+       walk_state->return_desc = return_desc;
+
+       /* Compare input string to static table of supported interfaces */
 
-       for (i = 0; i < ACPI_NUM_OSI_STRINGS; i++) {
-               if (!ACPI_STRCMP(string_desc->string.pointer,
-                                (char *)acpi_gbl_valid_osi_strings[i])) {
-                       /* This string is supported */
+       for (i = 0; i < ACPI_ARRAY_LENGTH(acpi_interfaces_supported); i++) {
+               if (!ACPI_STRCMP
+                   (string_desc->string.pointer,
+                    acpi_interfaces_supported[i])) {
 
-                       return_desc->integer.value = 0xFFFFFFFF;
-                       break;
+                       /* The interface is supported */
+
+                       return_ACPI_STATUS(AE_CTRL_TERMINATE);
                }
        }
 
-       walk_state->return_desc = return_desc;
+       /*
+        * Did not match the string in the static table, call the host OSL to
+        * check for a match with one of the optional strings (such as
+        * "Module Device", "3.0 Thermal Model", etc.)
+        */
+       status = acpi_os_validate_interface(string_desc->string.pointer);
+       if (ACPI_SUCCESS(status)) {
+
+               /* The interface is supported */
+
+               return_ACPI_STATUS(AE_CTRL_TERMINATE);
+       }
+
+       /* The interface is not supported */
+
+       return_desc->integer.value = 0;
        return_ACPI_STATUS(AE_CTRL_TERMINATE);
 }
 
@@ -132,19 +181,26 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
                        u32 expected_return_btypes,
                        union acpi_operand_object **return_desc)
 {
-       struct acpi_parameter_info info;
+       struct acpi_evaluate_info *info;
        acpi_status status;
        u32 return_btype;
 
-       ACPI_FUNCTION_TRACE("ut_evaluate_object");
+       ACPI_FUNCTION_TRACE(ut_evaluate_object);
 
-       info.node = prefix_node;
-       info.parameters = NULL;
-       info.parameter_type = ACPI_PARAM_ARGS;
+       /* Allocate the evaluation information block */
+
+       info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+       if (!info) {
+               return_ACPI_STATUS(AE_NO_MEMORY);
+       }
+
+       info->prefix_node = prefix_node;
+       info->pathname = path;
+       info->parameter_type = ACPI_PARAM_ARGS;
 
        /* Evaluate the object/method */
 
-       status = acpi_ns_evaluate_relative(path, &info);
+       status = acpi_ns_evaluate(info);
        if (ACPI_FAILURE(status)) {
                if (status == AE_NOT_FOUND) {
                        ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
@@ -152,30 +208,29 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
                                          acpi_ut_get_node_name(prefix_node),
                                          path));
                } else {
-                       ACPI_REPORT_METHOD_ERROR("Method execution failed",
-                                                prefix_node, path, status);
+                       ACPI_ERROR_METHOD("Method execution failed",
+                                         prefix_node, path, status);
                }
 
-               return_ACPI_STATUS(status);
+               goto cleanup;
        }
 
        /* Did we get a return object? */
 
-       if (!info.return_object) {
+       if (!info->return_object) {
                if (expected_return_btypes) {
-                       ACPI_REPORT_METHOD_ERROR("No object was returned from",
-                                                prefix_node, path,
-                                                AE_NOT_EXIST);
+                       ACPI_ERROR_METHOD("No object was returned from",
+                                         prefix_node, path, AE_NOT_EXIST);
 
-                       return_ACPI_STATUS(AE_NOT_EXIST);
+                       status = AE_NOT_EXIST;
                }
 
-               return_ACPI_STATUS(AE_OK);
+               goto cleanup;
        }
 
        /* Map the return object type to the bitmapped type */
 
-       switch (ACPI_GET_OBJECT_TYPE(info.return_object)) {
+       switch (ACPI_GET_OBJECT_TYPE(info->return_object)) {
        case ACPI_TYPE_INTEGER:
                return_btype = ACPI_BTYPE_INTEGER;
                break;
@@ -203,33 +258,36 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
                 * happen frequently if the "implicit return" feature is enabled.
                 * Just delete the return object and return AE_OK.
                 */
-               acpi_ut_remove_reference(info.return_object);
-               return_ACPI_STATUS(AE_OK);
+               acpi_ut_remove_reference(info->return_object);
+               goto cleanup;
        }
 
        /* Is the return object one of the expected types? */
 
        if (!(expected_return_btypes & return_btype)) {
-               ACPI_REPORT_METHOD_ERROR("Return object type is incorrect",
-                                        prefix_node, path, AE_TYPE);
+               ACPI_ERROR_METHOD("Return object type is incorrect",
+                                 prefix_node, path, AE_TYPE);
 
-               ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-                                 "Type returned from %s was incorrect: %s, expected Btypes: %X\n",
-                                 path,
-                                 acpi_ut_get_object_type_name(info.
-                                                              return_object),
-                                 expected_return_btypes));
+               ACPI_ERROR((AE_INFO,
+                           "Type returned from %s was incorrect: %s, expected Btypes: %X",
+                           path,
+                           acpi_ut_get_object_type_name(info->return_object),
+                           expected_return_btypes));
 
                /* On error exit, we must delete the return object */
 
-               acpi_ut_remove_reference(info.return_object);
-               return_ACPI_STATUS(AE_TYPE);
+               acpi_ut_remove_reference(info->return_object);
+               status = AE_TYPE;
+               goto cleanup;
        }
 
        /* Object type is OK, return it */
 
-       *return_desc = info.return_object;
-       return_ACPI_STATUS(AE_OK);
+       *return_desc = info->return_object;
+
+      cleanup:
+       ACPI_FREE(info);
+       return_ACPI_STATUS(status);
 }
 
 /*******************************************************************************
@@ -257,7 +315,7 @@ acpi_ut_evaluate_numeric_object(char *object_name,
        union acpi_operand_object *obj_desc;
        acpi_status status;
 
-       ACPI_FUNCTION_TRACE("ut_evaluate_numeric_object");
+       ACPI_FUNCTION_TRACE(ut_evaluate_numeric_object);
 
        status = acpi_ut_evaluate_object(device_node, object_name,
                                         ACPI_BTYPE_INTEGER, &obj_desc);
@@ -333,7 +391,7 @@ acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
        union acpi_operand_object *obj_desc;
        acpi_status status;
 
-       ACPI_FUNCTION_TRACE("ut_execute_HID");
+       ACPI_FUNCTION_TRACE(ut_execute_HID);
 
        status = acpi_ut_evaluate_object(device_node, METHOD_NAME__HID,
                                         ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING,
@@ -343,6 +401,7 @@ acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
        }
 
        if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
+
                /* Convert the Numeric HID to string */
 
                acpi_ex_eisa_id_to_string((u32) obj_desc->integer.value,
@@ -436,7 +495,7 @@ acpi_ut_execute_CID(struct acpi_namespace_node * device_node,
        struct acpi_compatible_id_list *cid_list;
        acpi_native_uint i;
 
-       ACPI_FUNCTION_TRACE("ut_execute_CID");
+       ACPI_FUNCTION_TRACE(ut_execute_CID);
 
        /* Evaluate the _CID method for this device */
 
@@ -459,7 +518,7 @@ acpi_ut_execute_CID(struct acpi_namespace_node * device_node,
        size = (((count - 1) * sizeof(struct acpi_compatible_id)) +
                sizeof(struct acpi_compatible_id_list));
 
-       cid_list = ACPI_MEM_CALLOCATE((acpi_size) size);
+       cid_list = ACPI_ALLOCATE_ZEROED((acpi_size) size);
        if (!cid_list) {
                return_ACPI_STATUS(AE_NO_MEMORY);
        }
@@ -479,6 +538,7 @@ acpi_ut_execute_CID(struct acpi_namespace_node * device_node,
        /* The _CID object can be either a single CID or a package (list) of CIDs */
 
        if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_PACKAGE) {
+
                /* Translate each package element */
 
                for (i = 0; i < count; i++) {
@@ -499,7 +559,7 @@ acpi_ut_execute_CID(struct acpi_namespace_node * device_node,
        /* Cleanup on error */
 
        if (ACPI_FAILURE(status)) {
-               ACPI_MEM_FREE(cid_list);
+               ACPI_FREE(cid_list);
        } else {
                *return_cid_list = cid_list;
        }
@@ -533,7 +593,7 @@ acpi_ut_execute_UID(struct acpi_namespace_node *device_node,
        union acpi_operand_object *obj_desc;
        acpi_status status;
 
-       ACPI_FUNCTION_TRACE("ut_execute_UID");
+       ACPI_FUNCTION_TRACE(ut_execute_UID);
 
        status = acpi_ut_evaluate_object(device_node, METHOD_NAME__UID,
                                         ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING,
@@ -543,6 +603,7 @@ acpi_ut_execute_UID(struct acpi_namespace_node *device_node,
        }
 
        if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
+
                /* Convert the Numeric UID to string */
 
                acpi_ex_unsigned_integer_to_string(obj_desc->integer.value,
@@ -582,7 +643,7 @@ acpi_ut_execute_STA(struct acpi_namespace_node *device_node, u32 * flags)
        union acpi_operand_object *obj_desc;
        acpi_status status;
 
-       ACPI_FUNCTION_TRACE("ut_execute_STA");
+       ACPI_FUNCTION_TRACE(ut_execute_STA);
 
        status = acpi_ut_evaluate_object(device_node, METHOD_NAME__STA,
                                         ACPI_BTYPE_INTEGER, &obj_desc);
@@ -592,7 +653,7 @@ acpi_ut_execute_STA(struct acpi_namespace_node *device_node, u32 * flags)
                                          "_STA on %4.4s was not found, assuming device is present\n",
                                          acpi_ut_get_node_name(device_node)));
 
-                       *flags = 0x0F;
+                       *flags = ACPI_UINT32_MAX;
                        status = AE_OK;
                }
 
@@ -632,22 +693,22 @@ acpi_ut_execute_sxds(struct acpi_namespace_node *device_node, u8 * highest)
        acpi_status status;
        u32 i;
 
-       ACPI_FUNCTION_TRACE("ut_execute_Sxds");
+       ACPI_FUNCTION_TRACE(ut_execute_sxds);
 
        for (i = 0; i < 4; i++) {
                highest[i] = 0xFF;
                status = acpi_ut_evaluate_object(device_node,
-                                                (char *)
-                                                acpi_gbl_highest_dstate_names
-                                                [i], ACPI_BTYPE_INTEGER,
-                                                &obj_desc);
+                                                ACPI_CAST_PTR(char,
+                                                              acpi_gbl_highest_dstate_names
+                                                              [i]),
+                                                ACPI_BTYPE_INTEGER, &obj_desc);
                if (ACPI_FAILURE(status)) {
                        if (status != AE_NOT_FOUND) {
                                ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
                                                  "%s on Device %4.4s, %s\n",
-                                                 (char *)
-                                                 acpi_gbl_highest_dstate_names
-                                                 [i],
+                                                 ACPI_CAST_PTR(char,
+                                                               acpi_gbl_highest_dstate_names
+                                                               [i]),
                                                  acpi_ut_get_node_name
                                                  (device_node),
                                                  acpi_format_exception