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, 229 insertions, 0 deletions

diff --git a/drivers/acpi/dispatcher/dswscope.c b/drivers/acpi/dispatcher/dswscope.c
new file mode 100644
index 000000000000..65f456151e25
--- /dev/null
+++ b/drivers/acpi/dispatcher/dswscope.c
@@ -0,0 +1,229 @@
+/******************************************************************************
+ *
+ * Module Name: dswscope - Scope stack manipulation
+ *
+ *****************************************************************************/
+
+/*
+ * 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/acdispat.h>
+
+
+#define _COMPONENT          ACPI_DISPATCHER
+	 ACPI_MODULE_NAME    ("dswscope")
+
+
+#define STACK_POP(head) head
+
+
+/****************************************************************************
+ *
+ * FUNCTION:    acpi_ds_scope_stack_clear
+ *
+ * PARAMETERS:  None
+ *
+ * DESCRIPTION: Pop (and free) everything on the scope stack except the
+ *              root scope object (which remains at the stack top.)
+ *
+ ***************************************************************************/
+
+void
+acpi_ds_scope_stack_clear (
+	struct acpi_walk_state          *walk_state)
+{
+	union acpi_generic_state        *scope_info;
+
+	ACPI_FUNCTION_NAME ("ds_scope_stack_clear");
+
+
+	while (walk_state->scope_info) {
+		/* Pop a scope off the stack */
+
+		scope_info = walk_state->scope_info;
+		walk_state->scope_info = scope_info->scope.next;
+
+		ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
+			"Popped object type (%s)\n", acpi_ut_get_type_name (scope_info->common.value)));
+		acpi_ut_delete_generic_state (scope_info);
+	}
+}
+
+
+/****************************************************************************
+ *
+ * FUNCTION:    acpi_ds_scope_stack_push
+ *
+ * PARAMETERS:  *Node,              - Name to be made current
+ *              Type,               - Type of frame being pushed
+ *
+ * DESCRIPTION: Push the current scope on the scope stack, and make the
+ *              passed Node current.
+ *
+ ***************************************************************************/
+
+acpi_status
+acpi_ds_scope_stack_push (
+	struct acpi_namespace_node      *node,
+	acpi_object_type                type,
+	struct acpi_walk_state          *walk_state)
+{
+	union acpi_generic_state        *scope_info;
+	union acpi_generic_state        *old_scope_info;
+
+
+	ACPI_FUNCTION_TRACE ("ds_scope_stack_push");
+
+
+	if (!node) {
+		/* Invalid scope   */
+
+		ACPI_REPORT_ERROR (("ds_scope_stack_push: null scope passed\n"));
+		return_ACPI_STATUS (AE_BAD_PARAMETER);
+	}
+
+	/* Make sure object type is valid */
+
+	if (!acpi_ut_valid_object_type (type)) {
+		ACPI_REPORT_WARNING (("ds_scope_stack_push: Invalid object type: 0x%X\n", type));
+	}
+
+	/* Allocate a new scope object */
+
+	scope_info = acpi_ut_create_generic_state ();
+	if (!scope_info) {
+		return_ACPI_STATUS (AE_NO_MEMORY);
+	}
+
+	/* Init new scope object */
+
+	scope_info->common.data_type = ACPI_DESC_TYPE_STATE_WSCOPE;
+	scope_info->scope.node      = node;
+	scope_info->common.value    = (u16) type;
+
+	walk_state->scope_depth++;
+
+	ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
+		"[%.2d] Pushed scope ", (u32) walk_state->scope_depth));
+
+	old_scope_info = walk_state->scope_info;
+	if (old_scope_info) {
+		ACPI_DEBUG_PRINT_RAW ((ACPI_DB_EXEC,
+			"[%4.4s] (%s)",
+			acpi_ut_get_node_name (old_scope_info->scope.node),
+			acpi_ut_get_type_name (old_scope_info->common.value)));
+	}
+	else {
+		ACPI_DEBUG_PRINT_RAW ((ACPI_DB_EXEC,
+			"[\\___] (%s)", "ROOT"));
+	}
+
+	ACPI_DEBUG_PRINT_RAW ((ACPI_DB_EXEC,
+		", New scope -> [%4.4s] (%s)\n",
+		acpi_ut_get_node_name (scope_info->scope.node),
+		acpi_ut_get_type_name (scope_info->common.value)));
+
+	/* Push new scope object onto stack */
+
+	acpi_ut_push_generic_state (&walk_state->scope_info, scope_info);
+	return_ACPI_STATUS (AE_OK);
+}
+
+
+/****************************************************************************
+ *
+ * FUNCTION:    acpi_ds_scope_stack_pop
+ *
+ * PARAMETERS:  Type                - The type of frame to be found
+ *
+ * DESCRIPTION: Pop the scope stack until a frame of the requested type
+ *              is found.
+ *
+ * RETURN:      Count of frames popped.  If no frame of the requested type
+ *              was found, the count is returned as a negative number and
+ *              the scope stack is emptied (which sets the current scope
+ *              to the root).  If the scope stack was empty at entry, the
+ *              function is a no-op and returns 0.
+ *
+ ***************************************************************************/
+
+acpi_status
+acpi_ds_scope_stack_pop (
+	struct acpi_walk_state          *walk_state)
+{
+	union acpi_generic_state        *scope_info;
+	union acpi_generic_state        *new_scope_info;
+
+
+	ACPI_FUNCTION_TRACE ("ds_scope_stack_pop");
+
+
+	/*
+	 * Pop scope info object off the stack.
+	 */
+	scope_info = acpi_ut_pop_generic_state (&walk_state->scope_info);
+	if (!scope_info) {
+		return_ACPI_STATUS (AE_STACK_UNDERFLOW);
+	}
+
+	walk_state->scope_depth--;
+
+	ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
+		"[%.2d] Popped scope [%4.4s] (%s), New scope -> ",
+		(u32) walk_state->scope_depth,
+		acpi_ut_get_node_name (scope_info->scope.node),
+		acpi_ut_get_type_name (scope_info->common.value)));
+
+	new_scope_info = walk_state->scope_info;
+	if (new_scope_info) {
+		ACPI_DEBUG_PRINT_RAW ((ACPI_DB_EXEC,
+			"[%4.4s] (%s)\n",
+			acpi_ut_get_node_name (new_scope_info->scope.node),
+			acpi_ut_get_type_name (new_scope_info->common.value)));
+	}
+	else {
+		ACPI_DEBUG_PRINT_RAW ((ACPI_DB_EXEC,
+			"[\\___] (ROOT)\n"));
+	}
+
+	acpi_ut_delete_generic_state (scope_info);
+	return_ACPI_STATUS (AE_OK);
+}
+
+