linux-kernel - [PATCH 19/85] ACPICA: Add function to decode reference obj types to strings

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Date:	Sat, 11 Oct 2008 02:35:39 -0400
From:	Len Brown <lenb@...nel.org>
To:	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:	Bob Moore <robert.moore@...el.com>,
	Lin Ming <ming.m.lin@...el.com>,
	Andi Kleen <ak@...ux.intel.com>,
	Len Brown <len.brown@...el.com>
Subject: [PATCH 19/85] ACPICA: Add function to decode reference obj types to
 strings

From: Bob Moore <robert.moore@...el.com>

Created for improved error messages.

Signed-off-by: Bob Moore <robert.moore@...el.com>
Signed-off-by: Lin Ming <ming.m.lin@...el.com>
Signed-off-by: Andi Kleen <ak@...ux.intel.com>
Signed-off-by: Len Brown <len.brown@...el.com>
---
 drivers/acpi/utilities/utglobal.c |   36 ++++++++++++++++++++++++++++++++++++
 include/acpi/acutils.h            |    2 ++
 2 files changed, 38 insertions(+), 0 deletions(-)

diff --git a/drivers/acpi/utilities/utglobal.c b/drivers/acpi/utilities/utglobal.c
index a6e71b8..5e57ed9 100644
--- a/drivers/acpi/utilities/utglobal.c
+++ b/drivers/acpi/utilities/utglobal.c
@@ -45,6 +45,7 @@
 
 #include <acpi/acpi.h>
 #include <acpi/acnamesp.h>
+#include <acpi/amlcode.h>
 
 ACPI_EXPORT_SYMBOL(acpi_gbl_FADT)
 #define _COMPONENT          ACPI_UTILITIES
@@ -575,6 +576,41 @@ char *acpi_ut_get_descriptor_name(void *object)
 
 }
 
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_get_reference_name
+ *
+ * PARAMETERS:  Object               - An ACPI reference object
+ *
+ * RETURN:      Pointer to a string
+ *
+ * DESCRIPTION: Decode a reference object sub-type to a string.
+ *
+ ******************************************************************************/
+
+/* Printable names of reference object sub-types */
+
+const char *acpi_ut_get_reference_name(union acpi_operand_object *object)
+{
+
+	switch (object->reference.opcode) {
+	case AML_INT_NAMEPATH_OP:
+		return "Name";
+
+	case AML_LOAD_OP:
+		return "DDB-Handle";
+
+	case AML_REF_OF_OP:
+		return "RefOf";
+
+	case AML_INDEX_OP:
+		return "Index";
+
+	default:
+		return "Unknown";
+	}
+}
+
 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
 /*
  * Strings and procedures used for debug only
diff --git a/include/acpi/acutils.h b/include/acpi/acutils.h
index 69f8888..f827822 100644
--- a/include/acpi/acutils.h
+++ b/include/acpi/acutils.h
@@ -126,6 +126,8 @@ char *acpi_ut_get_node_name(void *object);
 
 char *acpi_ut_get_descriptor_name(void *object);
 
+const char *acpi_ut_get_reference_name(union acpi_operand_object *object);
+
 char *acpi_ut_get_object_type_name(union acpi_operand_object *obj_desc);
 
 char *acpi_ut_get_region_name(u8 space_id);
-- 
1.5.5.1

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