Linux-2.6.12-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, 290 insertions, 0 deletions

diff --git a/drivers/acpi/parser/psscope.c b/drivers/acpi/parser/psscope.c
new file mode 100644
index 000000000000..dcbed49608b0
--- /dev/null
+++ b/drivers/acpi/parser/psscope.c
@@ -0,0 +1,290 @@
+/******************************************************************************
+ *
+ * Module Name: psscope - Parser scope stack management routines
+ *
+ *****************************************************************************/
+
+/*
+ * 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/acparser.h>
+
+#define _COMPONENT          ACPI_PARSER
+	 ACPI_MODULE_NAME    ("psscope")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ps_get_parent_scope
+ *
+ * PARAMETERS:  parser_state        - Current parser state object
+ *
+ * RETURN:      Pointer to an Op object
+ *
+ * DESCRIPTION: Get parent of current op being parsed
+ *
+ ******************************************************************************/
+
+union acpi_parse_object *
+acpi_ps_get_parent_scope (
+	struct acpi_parse_state         *parser_state)
+{
+	return (parser_state->scope->parse_scope.op);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ps_has_completed_scope
+ *
+ * PARAMETERS:  parser_state        - Current parser state object
+ *
+ * RETURN:      Boolean, TRUE = scope completed.
+ *
+ * DESCRIPTION: Is parsing of current argument complete?  Determined by
+ *              1) AML pointer is at or beyond the end of the scope
+ *              2) The scope argument count has reached zero.
+ *
+ ******************************************************************************/
+
+u8
+acpi_ps_has_completed_scope (
+	struct acpi_parse_state         *parser_state)
+{
+	return ((u8) ((parser_state->aml >= parser_state->scope->parse_scope.arg_end ||
+			   !parser_state->scope->parse_scope.arg_count)));
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ps_init_scope
+ *
+ * PARAMETERS:  parser_state        - Current parser state object
+ *              Root                - the Root Node of this new scope
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Allocate and init a new scope object
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ps_init_scope (
+	struct acpi_parse_state         *parser_state,
+	union acpi_parse_object         *root_op)
+{
+	union acpi_generic_state        *scope;
+
+
+	ACPI_FUNCTION_TRACE_PTR ("ps_init_scope", root_op);
+
+
+	scope = acpi_ut_create_generic_state ();
+	if (!scope) {
+		return_ACPI_STATUS (AE_NO_MEMORY);
+	}
+
+	scope->common.data_type     = ACPI_DESC_TYPE_STATE_RPSCOPE;
+	scope->parse_scope.op       = root_op;
+	scope->parse_scope.arg_count = ACPI_VAR_ARGS;
+	scope->parse_scope.arg_end  = parser_state->aml_end;
+	scope->parse_scope.pkg_end  = parser_state->aml_end;
+
+	parser_state->scope         = scope;
+	parser_state->start_op      = root_op;
+
+	return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ps_push_scope
+ *
+ * PARAMETERS:  parser_state        - Current parser state object
+ *              Op                  - Current op to be pushed
+ *              remaining_args      - List of args remaining
+ *              arg_count           - Fixed or variable number of args
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Push current op to begin parsing its argument
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ps_push_scope (
+	struct acpi_parse_state         *parser_state,
+	union acpi_parse_object         *op,
+	u32                             remaining_args,
+	u32                             arg_count)
+{
+	union acpi_generic_state        *scope;
+
+
+	ACPI_FUNCTION_TRACE_PTR ("ps_push_scope", op);
+
+
+	scope = acpi_ut_create_generic_state ();
+	if (!scope) {
+		return_ACPI_STATUS (AE_NO_MEMORY);
+	}
+
+	scope->common.data_type        = ACPI_DESC_TYPE_STATE_PSCOPE;
+	scope->parse_scope.op          = op;
+	scope->parse_scope.arg_list    = remaining_args;
+	scope->parse_scope.arg_count   = arg_count;
+	scope->parse_scope.pkg_end     = parser_state->pkg_end;
+
+	/* Push onto scope stack */
+
+	acpi_ut_push_generic_state (&parser_state->scope, scope);
+
+	if (arg_count == ACPI_VAR_ARGS) {
+		/* multiple arguments */
+
+		scope->parse_scope.arg_end = parser_state->pkg_end;
+	}
+	else {
+		/* single argument */
+
+		scope->parse_scope.arg_end = ACPI_TO_POINTER (ACPI_MAX_PTR);
+	}
+
+	return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ps_pop_scope
+ *
+ * PARAMETERS:  parser_state        - Current parser state object
+ *              Op                  - Where the popped op is returned
+ *              arg_list            - Where the popped "next argument" is
+ *                                    returned
+ *              arg_count           - Count of objects in arg_list
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Return to parsing a previous op
+ *
+ ******************************************************************************/
+
+void
+acpi_ps_pop_scope (
+	struct acpi_parse_state         *parser_state,
+	union acpi_parse_object         **op,
+	u32                             *arg_list,
+	u32                             *arg_count)
+{
+	union acpi_generic_state        *scope = parser_state->scope;
+
+
+	ACPI_FUNCTION_TRACE ("ps_pop_scope");
+
+
+	/*
+	 * Only pop the scope if there is in fact a next scope
+	 */
+	if (scope->common.next) {
+		scope = acpi_ut_pop_generic_state (&parser_state->scope);
+
+		/* return to parsing previous op */
+
+		*op                     = scope->parse_scope.op;
+		*arg_list               = scope->parse_scope.arg_list;
+		*arg_count              = scope->parse_scope.arg_count;
+		parser_state->pkg_end   = scope->parse_scope.pkg_end;
+
+		/* All done with this scope state structure */
+
+		acpi_ut_delete_generic_state (scope);
+	}
+	else {
+		/* empty parse stack, prepare to fetch next opcode */
+
+		*op                     = NULL;
+		*arg_list               = 0;
+		*arg_count              = 0;
+	}
+
+	ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "Popped Op %p Args %X\n", *op, *arg_count));
+	return_VOID;
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ps_cleanup_scope
+ *
+ * PARAMETERS:  parser_state        - Current parser state object
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Destroy available list, remaining stack levels, and return
+ *              root scope
+ *
+ ******************************************************************************/
+
+void
+acpi_ps_cleanup_scope (
+	struct acpi_parse_state         *parser_state)
+{
+	union acpi_generic_state        *scope;
+
+
+	ACPI_FUNCTION_TRACE_PTR ("ps_cleanup_scope", parser_state);
+
+
+	if (!parser_state) {
+		return_VOID;
+	}
+
+	/* Delete anything on the scope stack */
+
+	while (parser_state->scope) {
+		scope = acpi_ut_pop_generic_state (&parser_state->scope);
+		acpi_ut_delete_generic_state (scope);
+	}
+
+	return_VOID;
+}
+