ACPICA 20050408 from Bob Moore

Fixed three cases in the interpreter where an "index"
argument to an ASL function was still (internally) 32
bits instead of the required 64 bits.  This was the Index
argument to the Index, Mid, and Match operators.

The "strupr" function is now permanently local
(acpi_ut_strupr), since this is not a POSIX-defined
function and not present in most kernel-level C
libraries. References to the C library strupr function
have been removed from the headers.

Completed the deployment of static
functions/prototypes. All prototypes with the static
attribute have been moved from the headers to the owning
C file.

ACPICA 20050329 from Bob Moore

An error is now generated if an attempt is made to create
a Buffer Field of length zero (A CreateField with a length
operand of zero.)

The interpreter now issues a warning whenever executable
code at the module level is detected during ACPI table
load. This will give some idea of the prevalence of this
type of code.

Implemented support for references to named objects (other
than control methods) within package objects.

Enhanced package object output for the debug
object. Package objects are now completely dumped, showing
all elements.

Enhanced miscellaneous object output for the debug
object. Any object can now be written to the debug object
(for example, a device object can be written, and the type
of the object will be displayed.)

The "static" qualifier has been added to all local
functions across the core subsystem.

The number of "long" lines (> 80 chars) within the source
has been significantly reduced, by about 1/3.

Cleaned up all header files to ensure that all CA/iASL
functions are prototyped (even static functions) and the
formatting is consistent.

Two new header files have been added, acopcode.h and
acnames.h.

Removed several obsolete functions that were no longer
used.

Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 69 insertions, 35 deletions

diff --git a/drivers/acpi/executer/exprep.c b/drivers/acpi/executer/exprep.c
index 264ef3bba31..c9e3c68b554 100644
--- a/drivers/acpi/executer/exprep.c
+++ b/drivers/acpi/executer/exprep.c
@@ -52,8 +52,23 @@
 #define _COMPONENT          ACPI_EXECUTER
 	 ACPI_MODULE_NAME    ("exprep")
 
+/* Local prototypes */
+
+static u32
+acpi_ex_decode_field_access (
+	union acpi_operand_object       *obj_desc,
+	u8                              field_flags,
+	u32                             *return_byte_alignment);
+
 
 #ifdef ACPI_UNDER_DEVELOPMENT
+
+static u32
+acpi_ex_generate_access (
+	u32                             field_bit_offset,
+	u32                             field_bit_length,
+	u32                             region_length);
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ex_generate_access
@@ -99,12 +114,14 @@ acpi_ex_generate_access (
 	/* Round Field start offset and length to "minimal" byte boundaries */
 
 	field_byte_offset  = ACPI_DIV_8 (ACPI_ROUND_DOWN (field_bit_offset, 8));
-	field_byte_end_offset = ACPI_DIV_8 (ACPI_ROUND_UP (field_bit_length + field_bit_offset, 8));
+	field_byte_end_offset = ACPI_DIV_8 (ACPI_ROUND_UP (field_bit_length +
+			   field_bit_offset, 8));
 	field_byte_length  = field_byte_end_offset - field_byte_offset;
 
 	ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD,
 			"Bit length %d, Bit offset %d\n",
 			field_bit_length, field_bit_offset));
+
 	ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD,
 			"Byte Length %d, Byte Offset %d, End Offset %d\n",
 			field_byte_length, field_byte_offset, field_byte_end_offset));
@@ -117,20 +134,26 @@ acpi_ex_generate_access (
 	 */
 	for (access_byte_width = 1; access_byte_width <= 8; access_byte_width <<= 1) {
 		/*
-		 * 1) Round end offset up to next access boundary and make sure that this
-		 *    does not go beyond the end of the parent region.
-		 * 2) When the Access width is greater than the field_byte_length, we are done.
-		 *    (This does not optimize for the perfectly aligned case yet).
+		 * 1) Round end offset up to next access boundary and make sure that
+		 *    this does not go beyond the end of the parent region.
+		 * 2) When the Access width is greater than the field_byte_length, we
+		 *    are done. (This does not optimize for the perfectly aligned
+		 *    case yet).
 		 */
 		if (ACPI_ROUND_UP (field_byte_end_offset, access_byte_width) <= region_length) {
-			field_start_offset = ACPI_ROUND_DOWN (field_byte_offset, access_byte_width) /
-					  access_byte_width;
-			field_end_offset = ACPI_ROUND_UP   ((field_byte_length + field_byte_offset),
-					  access_byte_width) / access_byte_width;
-			accesses         = field_end_offset - field_start_offset;
+			field_start_offset =
+				ACPI_ROUND_DOWN (field_byte_offset, access_byte_width) /
+				access_byte_width;
+
+			field_end_offset =
+				ACPI_ROUND_UP ((field_byte_length + field_byte_offset),
+					access_byte_width) / access_byte_width;
+
+			accesses = field_end_offset - field_start_offset;
 
 			ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD,
 					"access_width %d end is within region\n", access_byte_width));
+
 			ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD,
 					"Field Start %d, Field End %d -- requires %d accesses\n",
 					field_start_offset, field_end_offset, accesses));
@@ -139,8 +162,8 @@ acpi_ex_generate_access (
 
 			if (accesses <= 1) {
 				ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD,
-						"Entire field can be accessed with one operation of size %d\n",
-						access_byte_width));
+					"Entire field can be accessed with one operation of size %d\n",
+					access_byte_width));
 				return_VALUE (access_byte_width);
 			}
 
@@ -155,15 +178,20 @@ acpi_ex_generate_access (
 		}
 		else {
 			ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD,
-					"access_width %d end is NOT within region\n", access_byte_width));
+				"access_width %d end is NOT within region\n", access_byte_width));
 			if (access_byte_width == 1) {
 				ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD,
 						"Field goes beyond end-of-region!\n"));
-				return_VALUE (0);     /* Field does not fit in the region at all */
-			}
 
-			/* This width goes beyond the end-of-region, back off to previous access */
+				/* Field does not fit in the region at all */
 
+				return_VALUE (0);
+			}
+
+			/*
+			 * This width goes beyond the end-of-region, back off to
+			 * previous access
+			 */
 			ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD,
 					"Backing off to previous optimal access width of %d\n",
 					minimum_access_width));
@@ -171,8 +199,10 @@ acpi_ex_generate_access (
 		}
 	}
 
-	/* Could not read/write field with one operation, just use max access width */
-
+	/*
+	 * Could not read/write field with one operation,
+	 * just use max access width
+	 */
 	ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD,
 			"Cannot access field in one operation, using width 8\n"));
 	return_VALUE (8);
@@ -184,8 +214,9 @@ acpi_ex_generate_access (
  *
  * FUNCTION:    acpi_ex_decode_field_access
  *
- * PARAMETERS:  Access          - Encoded field access bits
- *              Length          - Field length.
+ * PARAMETERS:  obj_desc            - Field object
+ *              field_flags         - Encoded fieldflags (contains access bits)
+ *              return_byte_alignment - Where the byte alignment is returned
  *
  * RETURN:      Field granularity (8, 16, 32 or 64) and
  *              byte_alignment (1, 2, 3, or 4)
@@ -214,9 +245,10 @@ acpi_ex_decode_field_access (
 	case AML_FIELD_ACCESS_ANY:
 
 #ifdef ACPI_UNDER_DEVELOPMENT
-		byte_alignment = acpi_ex_generate_access (obj_desc->common_field.start_field_bit_offset,
-				 obj_desc->common_field.bit_length,
-				 0xFFFFFFFF /* Temp until we pass region_length as param */);
+		byte_alignment =
+			acpi_ex_generate_access (obj_desc->common_field.start_field_bit_offset,
+				obj_desc->common_field.bit_length,
+				0xFFFFFFFF /* Temp until we pass region_length as parameter */);
 		bit_length = byte_alignment * 8;
 #endif
 
@@ -276,6 +308,7 @@ acpi_ex_decode_field_access (
  *              field_flags         - Access, lock_rule, and update_rule.
  *                                    The format of a field_flag is described
  *                                    in the ACPI specification
+ *              field_attribute     - Special attributes (not used)
  *              field_bit_position  - Field start position
  *              field_bit_length    - Field length in number of bits
  *
@@ -337,7 +370,7 @@ acpi_ex_prep_common_field_object (
 	/* Setup width (access granularity) fields */
 
 	obj_desc->common_field.access_byte_width = (u8)
-			ACPI_DIV_8 (access_bit_width); /* 1, 2, 4,  8 */
+			ACPI_DIV_8 (access_bit_width);          /* 1,  2,  4,  8 */
 
 	obj_desc->common_field.access_bit_width = (u8) access_bit_width;
 
@@ -380,11 +413,7 @@ acpi_ex_prep_common_field_object (
  *
  * FUNCTION:    acpi_ex_prep_field_value
  *
- * PARAMETERS:  Node                - Owning Node
- *              region_node         - Region in which field is being defined
- *              field_flags         - Access, lock_rule, and update_rule.
- *              field_bit_position  - Field start position
- *              field_bit_length    - Field length in number of bits
+ * PARAMETERS:  Info    - Contains all field creation info
  *
  * RETURN:      Status
  *
@@ -445,7 +474,7 @@ acpi_ex_prep_field_value (
 	switch (info->field_type) {
 	case ACPI_TYPE_LOCAL_REGION_FIELD:
 
-		obj_desc->field.region_obj   = acpi_ns_get_attached_object (info->region_node);
+		obj_desc->field.region_obj = acpi_ns_get_attached_object (info->region_node);
 
 		/* An additional reference for the container */
 
@@ -461,8 +490,10 @@ acpi_ex_prep_field_value (
 	case ACPI_TYPE_LOCAL_BANK_FIELD:
 
 		obj_desc->bank_field.value   = info->bank_value;
-		obj_desc->bank_field.region_obj = acpi_ns_get_attached_object (info->region_node);
-		obj_desc->bank_field.bank_obj = acpi_ns_get_attached_object (info->register_node);
+		obj_desc->bank_field.region_obj = acpi_ns_get_attached_object (
+				 info->region_node);
+		obj_desc->bank_field.bank_obj = acpi_ns_get_attached_object (
+				 info->register_node);
 
 		/* An additional reference for the attached objects */
 
@@ -481,10 +512,13 @@ acpi_ex_prep_field_value (
 
 	case ACPI_TYPE_LOCAL_INDEX_FIELD:
 
-		obj_desc->index_field.index_obj = acpi_ns_get_attached_object (info->register_node);
-		obj_desc->index_field.data_obj = acpi_ns_get_attached_object (info->data_register_node);
+		obj_desc->index_field.index_obj = acpi_ns_get_attached_object (
+				 info->register_node);
+		obj_desc->index_field.data_obj = acpi_ns_get_attached_object (
+				 info->data_register_node);
 		obj_desc->index_field.value  = (u32)
-			(info->field_bit_position / ACPI_MUL_8 (obj_desc->field.access_byte_width));
+			(info->field_bit_position / ACPI_MUL_8 (
+					  obj_desc->field.access_byte_width));
 
 		if (!obj_desc->index_field.data_obj || !obj_desc->index_field.index_obj) {
 			ACPI_REPORT_ERROR (("Null Index Object during field prep\n"));