Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 265 insertions, 0 deletions

diff --git a/drivers/acpi/namespace/nsnames.c b/drivers/acpi/namespace/nsnames.c
new file mode 100644
index 000000000000..b6f8f910eff0
--- /dev/null
+++ b/drivers/acpi/namespace/nsnames.c
@@ -0,0 +1,265 @@
+/*******************************************************************************
+ *
+ * Module Name: nsnames - Name manipulation and search
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * 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/amlcode.h>
+#include <acpi/acnamesp.h>
+
+
+#define _COMPONENT          ACPI_NAMESPACE
+         ACPI_MODULE_NAME    ("nsnames")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_build_external_path
+ *
+ * PARAMETERS:  Node            - NS node whose pathname is needed
+ *              Size            - Size of the pathname
+ *              *name_buffer    - Where to return the pathname
+ *
+ * RETURN:      Places the pathname into the name_buffer, in external format
+ *              (name segments separated by path separators)
+ *
+ * DESCRIPTION: Generate a full pathaname
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_build_external_path (
+        struct acpi_namespace_node      *node,
+        acpi_size                       size,
+        char                            *name_buffer)
+{
+        acpi_size                       index;
+        struct acpi_namespace_node      *parent_node;
+
+
+        ACPI_FUNCTION_NAME ("ns_build_external_path");
+
+
+        /* Special case for root */
+
+        index = size - 1;
+        if (index < ACPI_NAME_SIZE) {
+                name_buffer[0] = AML_ROOT_PREFIX;
+                name_buffer[1] = 0;
+                return;
+        }
+
+        /* Store terminator byte, then build name backwards */
+
+        parent_node = node;
+        name_buffer[index] = 0;
+
+        while ((index > ACPI_NAME_SIZE) && (parent_node != acpi_gbl_root_node)) {
+                index -= ACPI_NAME_SIZE;
+
+                /* Put the name into the buffer */
+
+                ACPI_MOVE_32_TO_32 ((name_buffer + index), &parent_node->name);
+                parent_node = acpi_ns_get_parent_node (parent_node);
+
+                /* Prefix name with the path separator */
+
+                index--;
+                name_buffer[index] = ACPI_PATH_SEPARATOR;
+        }
+
+        /* Overwrite final separator with the root prefix character */
+
+        name_buffer[index] = AML_ROOT_PREFIX;
+
+        if (index != 0) {
+                ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+                        "Could not construct pathname; index=%X, size=%X, Path=%s\n",
+                        (u32) index, (u32) size, &name_buffer[size]));
+        }
+
+        return;
+}
+
+
+#ifdef ACPI_DEBUG_OUTPUT
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_get_external_pathname
+ *
+ * PARAMETERS:  Node            - NS node whose pathname is needed
+ *
+ * RETURN:      Pointer to storage containing the fully qualified name of
+ *              the node, In external format (name segments separated by path
+ *              separators.)
+ *
+ * DESCRIPTION: Used for debug printing in acpi_ns_search_table().
+ *
+ ******************************************************************************/
+
+char *
+acpi_ns_get_external_pathname (
+        struct acpi_namespace_node      *node)
+{
+        char                            *name_buffer;
+        acpi_size                       size;
+
+
+        ACPI_FUNCTION_TRACE_PTR ("ns_get_external_pathname", node);
+
+
+        /* Calculate required buffer size based on depth below root */
+
+        size = acpi_ns_get_pathname_length (node);
+
+        /* Allocate a buffer to be returned to caller */
+
+        name_buffer = ACPI_MEM_CALLOCATE (size);
+        if (!name_buffer) {
+                ACPI_REPORT_ERROR (("ns_get_table_pathname: allocation failure\n"));
+                return_PTR (NULL);
+        }
+
+        /* Build the path in the allocated buffer */
+
+        acpi_ns_build_external_path (node, size, name_buffer);
+        return_PTR (name_buffer);
+}
+#endif
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_get_pathname_length
+ *
+ * PARAMETERS:  Node        - Namespace node
+ *
+ * RETURN:      Length of path, including prefix
+ *
+ * DESCRIPTION: Get the length of the pathname string for this node
+ *
+ ******************************************************************************/
+
+acpi_size
+acpi_ns_get_pathname_length (
+        struct acpi_namespace_node      *node)
+{
+        acpi_size                       size;
+        struct acpi_namespace_node      *next_node;
+
+
+        ACPI_FUNCTION_ENTRY ();
+
+
+        /*
+         * Compute length of pathname as 5 * number of name segments.
+         * Go back up the parent tree to the root
+         */
+        size = 0;
+        next_node = node;
+
+        while (next_node && (next_node != acpi_gbl_root_node)) {
+                size += ACPI_PATH_SEGMENT_LENGTH;
+                next_node = acpi_ns_get_parent_node (next_node);
+        }
+
+        if (!size) {
+                size = 1;       /* Root node case */
+        }
+
+        return (size + 1);  /* +1 for null string terminator */
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_handle_to_pathname
+ *
+ * PARAMETERS:  target_handle           - Handle of named object whose name is
+ *                                        to be found
+ *              Buffer                  - Where the pathname is returned
+ *
+ * RETURN:      Status, Buffer is filled with pathname if status is AE_OK
+ *
+ * DESCRIPTION: Build and return a full namespace pathname
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_handle_to_pathname (
+        acpi_handle                     target_handle,
+        struct acpi_buffer              *buffer)
+{
+        acpi_status                     status;
+        struct acpi_namespace_node      *node;
+        acpi_size                       required_size;
+
+
+        ACPI_FUNCTION_TRACE_PTR ("ns_handle_to_pathname", target_handle);
+
+
+        node = acpi_ns_map_handle_to_node (target_handle);
+        if (!node) {
+                return_ACPI_STATUS (AE_BAD_PARAMETER);
+        }
+
+        /* Determine size required for the caller buffer */
+
+        required_size = acpi_ns_get_pathname_length (node);
+
+        /* Validate/Allocate/Clear caller buffer */
+
+        status = acpi_ut_initialize_buffer (buffer, required_size);
+        if (ACPI_FAILURE (status)) {
+                return_ACPI_STATUS (status);
+        }
+
+        /* Build the path in the caller buffer */
+
+        acpi_ns_build_external_path (node, required_size, buffer->pointer);
+
+        ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "%s [%X] \n",
+                (char *) buffer->pointer, (u32) required_size));
+        return_ACPI_STATUS (AE_OK);
+}
+
+