******************************************************************************/
/*
- * Copyright (C) 2000 - 2007, R. Byron Moore
+ * Copyright (C) 2000 - 2008, Intel Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
AML_VAR_PACKAGE_OP)
|| (op->common.parent->common.aml_opcode == AML_BUFFER_OP)
|| (op->common.parent->common.aml_opcode ==
- AML_INT_EVAL_SUBTREE_OP)) {
+ AML_INT_EVAL_SUBTREE_OP)
+ || (op->common.parent->common.aml_opcode ==
+ AML_BANK_FIELD_OP)) {
/*
* These opcodes allow term_arg(s) as operands and therefore
* the operands can be method calls. The result is used.
/* A valid name must be looked up in the namespace */
if ((arg->common.aml_opcode == AML_INT_NAMEPATH_OP) &&
- (arg->common.value.string)) {
+ (arg->common.value.string) &&
+ !(arg->common.flags & ACPI_PARSEOP_IN_STACK)) {
ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Getting a name: Arg=%p\n",
arg));
* indicate this to the interpreter, set the
* object to the root
*/
- obj_desc =
- ACPI_CAST_PTR(union
- acpi_operand_object,
- acpi_gbl_root_node);
+ obj_desc = ACPI_CAST_PTR(union
+ acpi_operand_object,
+ acpi_gbl_root_node);
status = AE_OK;
} else {
/*
} else {
/* Check for null name case */
- if (arg->common.aml_opcode == AML_INT_NAMEPATH_OP) {
+ if ((arg->common.aml_opcode == AML_INT_NAMEPATH_OP) &&
+ !(arg->common.flags & ACPI_PARSEOP_IN_STACK)) {
/*
* If the name is null, this means that this is an
* optional result parameter that was not specified
return_ACPI_STATUS(AE_NOT_IMPLEMENTED);
}
- if (op_info->flags & AML_HAS_RETVAL) {
+ if ((op_info->flags & AML_HAS_RETVAL)
+ || (arg->common.flags & ACPI_PARSEOP_IN_STACK)) {
ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
"Argument previously created, already stacked\n"));
* Use value that was already previously returned
* by the evaluation of this argument
*/
- status =
- acpi_ds_result_pop_from_bottom(&obj_desc,
- walk_state);
+ status = acpi_ds_result_pop(&obj_desc, walk_state);
if (ACPI_FAILURE(status)) {
/*
* Only error is underflow, and this indicates
{
acpi_status status = AE_OK;
union acpi_parse_object *arg;
+ union acpi_parse_object *arguments[ACPI_OBJ_NUM_OPERANDS];
u32 arg_count = 0;
+ u32 index = walk_state->num_operands;
+ u32 i;
ACPI_FUNCTION_TRACE_PTR(ds_create_operands, first_arg);
- /* For all arguments in the list... */
+ /* Get all arguments in the list */
arg = first_arg;
while (arg) {
- status = acpi_ds_create_operand(walk_state, arg, arg_count);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
+ if (index >= ACPI_OBJ_NUM_OPERANDS) {
+ return_ACPI_STATUS(AE_BAD_DATA);
}
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Arg #%d (%p) done, Arg1=%p\n", arg_count,
- arg, first_arg));
+ arguments[index] = arg;
+ walk_state->operands[index] = NULL;
/* Move on to next argument, if any */
arg = arg->common.next;
arg_count++;
+ index++;
+ }
+
+ index--;
+
+ /* It is the appropriate order to get objects from the Result stack */
+
+ for (i = 0; i < arg_count; i++) {
+ arg = arguments[index];
+
+ /* Force the filling of the operand stack in inverse order */
+
+ walk_state->operand_index = (u8) index;
+
+ status = acpi_ds_create_operand(walk_state, arg, index);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ index--;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "Arg #%d (%p) done, Arg1=%p\n", index, arg,
+ first_arg));
}
return_ACPI_STATUS(status);
* pop everything off of the operand stack and delete those
* objects
*/
- (void)acpi_ds_obj_stack_pop_and_delete(arg_count, walk_state);
+ acpi_ds_obj_stack_pop_and_delete(arg_count, walk_state);
+
+ ACPI_EXCEPTION((AE_INFO, status, "While creating Arg %d", index));
+ return_ACPI_STATUS(status);
+}
+
+/*****************************************************************************
+ *
+ * FUNCTION: acpi_ds_evaluate_name_path
+ *
+ * PARAMETERS: walk_state - Current state of the parse tree walk,
+ * the opcode of current operation should be
+ * AML_INT_NAMEPATH_OP
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Translate the -name_path- parse tree object to the equivalent
+ * interpreter object, convert it to value, if needed, duplicate
+ * it, if needed, and push it onto the current result stack.
+ *
+ ****************************************************************************/
+
+acpi_status acpi_ds_evaluate_name_path(struct acpi_walk_state *walk_state)
+{
+ acpi_status status = AE_OK;
+ union acpi_parse_object *op = walk_state->op;
+ union acpi_operand_object **operand = &walk_state->operands[0];
+ union acpi_operand_object *new_obj_desc;
+ u8 type;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_evaluate_name_path, walk_state);
+
+ if (!op->common.parent) {
+
+ /* This happens after certain exception processing */
+
+ goto exit;
+ }
+
+ if ((op->common.parent->common.aml_opcode == AML_PACKAGE_OP) ||
+ (op->common.parent->common.aml_opcode == AML_VAR_PACKAGE_OP) ||
+ (op->common.parent->common.aml_opcode == AML_REF_OF_OP)) {
+
+ /* TBD: Should we specify this feature as a bit of op_info->Flags of these opcodes? */
+
+ goto exit;
+ }
+
+ status = acpi_ds_create_operand(walk_state, op, 0);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ if (op->common.flags & ACPI_PARSEOP_TARGET) {
+ new_obj_desc = *operand;
+ goto push_result;
+ }
+
+ type = ACPI_GET_OBJECT_TYPE(*operand);
+
+ status = acpi_ex_resolve_to_value(operand, walk_state);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ if (type == ACPI_TYPE_INTEGER) {
+
+ /* It was incremented by acpi_ex_resolve_to_value */
+
+ acpi_ut_remove_reference(*operand);
+
+ status =
+ acpi_ut_copy_iobject_to_iobject(*operand, &new_obj_desc,
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+ } else {
+ /*
+ * The object either was anew created or is
+ * a Namespace node - don't decrement it.
+ */
+ new_obj_desc = *operand;
+ }
+
+ /* Cleanup for name-path operand */
+
+ status = acpi_ds_obj_stack_pop(1, walk_state);
+ if (ACPI_FAILURE(status)) {
+ walk_state->result_obj = new_obj_desc;
+ goto exit;
+ }
+
+ push_result:
+
+ walk_state->result_obj = new_obj_desc;
+
+ status = acpi_ds_result_push(walk_state->result_obj, walk_state);
+ if (ACPI_SUCCESS(status)) {
+
+ /* Force to take it from stack */
+
+ op->common.flags |= ACPI_PARSEOP_IN_STACK;
+ }
+
+ exit:
- ACPI_EXCEPTION((AE_INFO, status, "While creating Arg %d",
- (arg_count + 1)));
return_ACPI_STATUS(status);
}
projects / linux-2.6-omap-h63xx.git / blobdiff