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, 1013 insertions, 0 deletions

diff --git a/drivers/acpi/executer/exoparg1.c b/drivers/acpi/executer/exoparg1.c
new file mode 100644
index 000000000000..8482aefaf38b
--- /dev/null
+++ b/drivers/acpi/executer/exoparg1.c
@@ -0,0 +1,1013 @@
+
+/******************************************************************************
+ *
+ * Module Name: exoparg1 - AML execution - opcodes with 1 argument
+ *
+ *****************************************************************************/
+
+/*
+ * 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>
+#include <acpi/acdispat.h>
+#include <acpi/acinterp.h>
+#include <acpi/amlcode.h>
+#include <acpi/acnamesp.h>
+
+
+#define _COMPONENT          ACPI_EXECUTER
+	 ACPI_MODULE_NAME    ("exoparg1")
+
+
+/*!
+ * Naming convention for AML interpreter execution routines.
+ *
+ * The routines that begin execution of AML opcodes are named with a common
+ * convention based upon the number of arguments, the number of target operands,
+ * and whether or not a value is returned:
+ *
+ *      AcpiExOpcode_xA_yT_zR
+ *
+ * Where:
+ *
+ * xA - ARGUMENTS:    The number of arguments (input operands) that are
+ *                    required for this opcode type (0 through 6 args).
+ * yT - TARGETS:      The number of targets (output operands) that are required
+ *                    for this opcode type (0, 1, or 2 targets).
+ * zR - RETURN VALUE: Indicates whether this opcode type returns a value
+ *                    as the function return (0 or 1).
+ *
+ * The AcpiExOpcode* functions are called via the Dispatcher component with
+ * fully resolved operands.
+!*/
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_opcode_0A_0T_1R
+ *
+ * PARAMETERS:  walk_state          - Current state (contains AML opcode)
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Execute operator with no operands, one return value
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_opcode_0A_0T_1R (
+	struct acpi_walk_state          *walk_state)
+{
+	acpi_status                     status = AE_OK;
+	union acpi_operand_object       *return_desc = NULL;
+
+
+	ACPI_FUNCTION_TRACE_STR ("ex_opcode_0A_0T_1R", acpi_ps_get_opcode_name (walk_state->opcode));
+
+
+	/* Examine the AML opcode */
+
+	switch (walk_state->opcode) {
+	case AML_TIMER_OP:      /*  Timer () */
+
+		/* Create a return object of type Integer */
+
+		return_desc = acpi_ut_create_internal_object (ACPI_TYPE_INTEGER);
+		if (!return_desc) {
+			status = AE_NO_MEMORY;
+			goto cleanup;
+		}
+
+		return_desc->integer.value = acpi_os_get_timer ();
+		break;
+
+	default:                /*  Unknown opcode  */
+
+		ACPI_REPORT_ERROR (("acpi_ex_opcode_0A_0T_1R: Unknown opcode %X\n",
+			walk_state->opcode));
+		status = AE_AML_BAD_OPCODE;
+		break;
+	}
+
+cleanup:
+
+	if (!walk_state->result_obj) {
+		walk_state->result_obj = return_desc;
+	}
+
+	/* Delete return object on error */
+
+	if (ACPI_FAILURE (status)) {
+		acpi_ut_remove_reference (return_desc);
+	}
+
+	return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_opcode_1A_0T_0R
+ *
+ * PARAMETERS:  walk_state          - Current state (contains AML opcode)
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Execute Type 1 monadic operator with numeric operand on
+ *              object stack
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_opcode_1A_0T_0R (
+	struct acpi_walk_state          *walk_state)
+{
+	union acpi_operand_object       **operand = &walk_state->operands[0];
+	acpi_status                     status = AE_OK;
+
+
+	ACPI_FUNCTION_TRACE_STR ("ex_opcode_1A_0T_0R", acpi_ps_get_opcode_name (walk_state->opcode));
+
+
+	/* Examine the AML opcode */
+
+	switch (walk_state->opcode) {
+	case AML_RELEASE_OP:    /*  Release (mutex_object) */
+
+		status = acpi_ex_release_mutex (operand[0], walk_state);
+		break;
+
+
+	case AML_RESET_OP:      /*  Reset (event_object) */
+
+		status = acpi_ex_system_reset_event (operand[0]);
+		break;
+
+
+	case AML_SIGNAL_OP:     /*  Signal (event_object) */
+
+		status = acpi_ex_system_signal_event (operand[0]);
+		break;
+
+
+	case AML_SLEEP_OP:      /*  Sleep (msec_time) */
+
+		status = acpi_ex_system_do_suspend (operand[0]->integer.value);
+		break;
+
+
+	case AML_STALL_OP:      /*  Stall (usec_time) */
+
+		status = acpi_ex_system_do_stall ((u32) operand[0]->integer.value);
+		break;
+
+
+	case AML_UNLOAD_OP:     /*  Unload (Handle) */
+
+		status = acpi_ex_unload_table (operand[0]);
+		break;
+
+
+	default:                /*  Unknown opcode  */
+
+		ACPI_REPORT_ERROR (("acpi_ex_opcode_1A_0T_0R: Unknown opcode %X\n",
+			walk_state->opcode));
+		status = AE_AML_BAD_OPCODE;
+		break;
+	}
+
+	return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_opcode_1A_1T_0R
+ *
+ * PARAMETERS:  walk_state          - Current state (contains AML opcode)
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Execute opcode with one argument, one target, and no
+ *              return value.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_opcode_1A_1T_0R (
+	struct acpi_walk_state          *walk_state)
+{
+	acpi_status                     status = AE_OK;
+	union acpi_operand_object       **operand = &walk_state->operands[0];
+
+
+	ACPI_FUNCTION_TRACE_STR ("ex_opcode_1A_1T_0R", acpi_ps_get_opcode_name (walk_state->opcode));
+
+
+	/* Examine the AML opcode */
+
+	switch (walk_state->opcode) {
+	case AML_LOAD_OP:
+
+		status = acpi_ex_load_op (operand[0], operand[1], walk_state);
+		break;
+
+	default:                        /* Unknown opcode */
+
+		ACPI_REPORT_ERROR (("acpi_ex_opcode_1A_1T_0R: Unknown opcode %X\n",
+			walk_state->opcode));
+		status = AE_AML_BAD_OPCODE;
+		goto cleanup;
+	}
+
+
+cleanup:
+
+	return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_opcode_1A_1T_1R
+ *
+ * PARAMETERS:  walk_state          - Current state (contains AML opcode)
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Execute opcode with one argument, one target, and a
+ *              return value.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_opcode_1A_1T_1R (
+	struct acpi_walk_state          *walk_state)
+{
+	acpi_status                     status = AE_OK;
+	union acpi_operand_object       **operand = &walk_state->operands[0];
+	union acpi_operand_object       *return_desc = NULL;
+	union acpi_operand_object       *return_desc2 = NULL;
+	u32                             temp32;
+	u32                             i;
+	acpi_integer                    power_of_ten;
+	acpi_integer                    digit;
+
+
+	ACPI_FUNCTION_TRACE_STR ("ex_opcode_1A_1T_1R", acpi_ps_get_opcode_name (walk_state->opcode));
+
+
+	/* Examine the AML opcode */
+
+	switch (walk_state->opcode) {
+	case AML_BIT_NOT_OP:
+	case AML_FIND_SET_LEFT_BIT_OP:
+	case AML_FIND_SET_RIGHT_BIT_OP:
+	case AML_FROM_BCD_OP:
+	case AML_TO_BCD_OP:
+	case AML_COND_REF_OF_OP:
+
+		/* Create a return object of type Integer for these opcodes */
+
+		return_desc = acpi_ut_create_internal_object (ACPI_TYPE_INTEGER);
+		if (!return_desc) {
+			status = AE_NO_MEMORY;
+			goto cleanup;
+		}
+
+		switch (walk_state->opcode) {
+		case AML_BIT_NOT_OP:            /* Not (Operand, Result)  */
+
+			return_desc->integer.value = ~operand[0]->integer.value;
+			break;
+
+
+		case AML_FIND_SET_LEFT_BIT_OP:  /* find_set_left_bit (Operand, Result) */
+
+			return_desc->integer.value = operand[0]->integer.value;
+
+			/*
+			 * Acpi specification describes Integer type as a little
+			 * endian unsigned value, so this boundary condition is valid.
+			 */
+			for (temp32 = 0; return_desc->integer.value &&
+					   temp32 < ACPI_INTEGER_BIT_SIZE; ++temp32) {
+				return_desc->integer.value >>= 1;
+			}
+
+			return_desc->integer.value = temp32;
+			break;
+
+
+		case AML_FIND_SET_RIGHT_BIT_OP: /* find_set_right_bit (Operand, Result) */
+
+			return_desc->integer.value = operand[0]->integer.value;
+
+			/*
+			 * The Acpi specification describes Integer type as a little
+			 * endian unsigned value, so this boundary condition is valid.
+			 */
+			for (temp32 = 0; return_desc->integer.value &&
+					   temp32 < ACPI_INTEGER_BIT_SIZE; ++temp32) {
+				return_desc->integer.value <<= 1;
+			}
+
+			/* Since the bit position is one-based, subtract from 33 (65) */
+
+			return_desc->integer.value = temp32 == 0 ? 0 :
+					  (ACPI_INTEGER_BIT_SIZE + 1) - temp32;
+			break;
+
+
+		case AML_FROM_BCD_OP:           /* from_bcd (BCDValue, Result) */
+
+			/*
+			 * The 64-bit ACPI integer can hold 16 4-bit BCD characters
+			 * (if table is 32-bit, integer can hold 8 BCD characters)
+			 * Convert each 4-bit BCD value
+			 */
+			power_of_ten = 1;
+			return_desc->integer.value = 0;
+			digit = operand[0]->integer.value;
+
+			/* Convert each BCD digit (each is one nybble wide) */
+
+			for (i = 0; (i < acpi_gbl_integer_nybble_width) && (digit > 0); i++) {
+				/* Get the least significant 4-bit BCD digit */
+
+				temp32 = ((u32) digit) & 0xF;
+
+				/* Check the range of the digit */
+
+				if (temp32 > 9) {
+					ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+						"BCD digit too large (not decimal): 0x%X\n",
+						temp32));
+
+					status = AE_AML_NUMERIC_OVERFLOW;
+					goto cleanup;
+				}
+
+				/* Sum the digit into the result with the current power of 10 */
+
+				return_desc->integer.value += (((acpi_integer) temp32) *
+						 power_of_ten);
+
+				/* Shift to next BCD digit */
+
+				digit >>= 4;
+
+				/* Next power of 10 */
+
+				power_of_ten *= 10;
+			}
+			break;
+
+
+		case AML_TO_BCD_OP:             /* to_bcd (Operand, Result) */
+
+			return_desc->integer.value = 0;
+			digit = operand[0]->integer.value;
+
+			/* Each BCD digit is one nybble wide */
+
+			for (i = 0; (i < acpi_gbl_integer_nybble_width) && (digit > 0); i++) {
+				(void) acpi_ut_short_divide (digit, 10, &digit, &temp32);
+
+				/* Insert the BCD digit that resides in the remainder from above */
+
+				return_desc->integer.value |= (((acpi_integer) temp32) <<
+						   ACPI_MUL_4 (i));
+			}
+
+			/* Overflow if there is any data left in Digit */
+
+			if (digit > 0) {
+				ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+					"Integer too large to convert to BCD: %8.8X%8.8X\n",
+					ACPI_FORMAT_UINT64 (operand[0]->integer.value)));
+				status = AE_AML_NUMERIC_OVERFLOW;
+				goto cleanup;
+			}
+			break;
+
+
+		case AML_COND_REF_OF_OP:        /* cond_ref_of (source_object, Result) */
+
+			/*
+			 * This op is a little strange because the internal return value is
+			 * different than the return value stored in the result descriptor
+			 * (There are really two return values)
+			 */
+			if ((struct acpi_namespace_node *) operand[0] == acpi_gbl_root_node) {
+				/*
+				 * This means that the object does not exist in the namespace,
+				 * return FALSE
+				 */
+				return_desc->integer.value = 0;
+				goto cleanup;
+			}
+
+			/* Get the object reference, store it, and remove our reference */
+
+			status = acpi_ex_get_object_reference (operand[0], &return_desc2, walk_state);
+			if (ACPI_FAILURE (status)) {
+				goto cleanup;
+			}
+
+			status = acpi_ex_store (return_desc2, operand[1], walk_state);
+			acpi_ut_remove_reference (return_desc2);
+
+			/* The object exists in the namespace, return TRUE */
+
+			return_desc->integer.value = ACPI_INTEGER_MAX;
+			goto cleanup;
+
+
+		default:
+			/* No other opcodes get here */
+			break;
+		}
+		break;
+
+
+	case AML_STORE_OP:              /* Store (Source, Target) */
+
+		/*
+		 * A store operand is typically a number, string, buffer or lvalue
+		 * Be careful about deleting the source object,
+		 * since the object itself may have been stored.
+		 */
+		status = acpi_ex_store (operand[0], operand[1], walk_state);
+		if (ACPI_FAILURE (status)) {
+			return_ACPI_STATUS (status);
+		}
+
+		/* It is possible that the Store already produced a return object */
+
+		if (!walk_state->result_obj) {
+			/*
+			 * Normally, we would remove a reference on the Operand[0] parameter;
+			 * But since it is being used as the internal return object
+			 * (meaning we would normally increment it), the two cancel out,
+			 * and we simply don't do anything.
+			 */
+			walk_state->result_obj = operand[0];
+			walk_state->operands[0] = NULL; /* Prevent deletion */
+		}
+		return_ACPI_STATUS (status);
+
+
+	/*
+	 * ACPI 2.0 Opcodes
+	 */
+	case AML_COPY_OP:               /* Copy (Source, Target) */
+
+		status = acpi_ut_copy_iobject_to_iobject (operand[0], &return_desc,
+				 walk_state);
+		break;
+
+
+	case AML_TO_DECSTRING_OP:       /* to_decimal_string (Data, Result) */
+
+		status = acpi_ex_convert_to_string (operand[0], &return_desc,
+				 ACPI_EXPLICIT_CONVERT_DECIMAL);
+		if (return_desc == operand[0]) {
+			/* No conversion performed, add ref to handle return value */
+			acpi_ut_add_reference (return_desc);
+		}
+		break;
+
+
+	case AML_TO_HEXSTRING_OP:       /* to_hex_string (Data, Result) */
+
+		status = acpi_ex_convert_to_string (operand[0], &return_desc,
+				 ACPI_EXPLICIT_CONVERT_HEX);
+		if (return_desc == operand[0]) {
+			/* No conversion performed, add ref to handle return value */
+			acpi_ut_add_reference (return_desc);
+		}
+		break;
+
+
+	case AML_TO_BUFFER_OP:          /* to_buffer (Data, Result) */
+
+		status = acpi_ex_convert_to_buffer (operand[0], &return_desc);
+		if (return_desc == operand[0]) {
+			/* No conversion performed, add ref to handle return value */
+			acpi_ut_add_reference (return_desc);
+		}
+		break;
+
+
+	case AML_TO_INTEGER_OP:         /* to_integer (Data, Result) */
+
+		status = acpi_ex_convert_to_integer (operand[0], &return_desc,
+				 ACPI_ANY_BASE);
+		if (return_desc == operand[0]) {
+			/* No conversion performed, add ref to handle return value */
+			acpi_ut_add_reference (return_desc);
+		}
+		break;
+
+
+	case AML_SHIFT_LEFT_BIT_OP:     /* shift_left_bit (Source, bit_num) */
+	case AML_SHIFT_RIGHT_BIT_OP:    /* shift_right_bit (Source, bit_num) */
+
+		/*
+		 * These are two obsolete opcodes
+		 */
+		ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+			"%s is obsolete and not implemented\n",
+			acpi_ps_get_opcode_name (walk_state->opcode)));
+		status = AE_SUPPORT;
+		goto cleanup;
+
+
+	default:                        /* Unknown opcode */
+
+		ACPI_REPORT_ERROR (("acpi_ex_opcode_1A_1T_1R: Unknown opcode %X\n",
+			walk_state->opcode));
+		status = AE_AML_BAD_OPCODE;
+		goto cleanup;
+	}
+
+	if (ACPI_SUCCESS (status)) {
+		/*
+		 * Store the return value computed above into the target object
+		 */
+		status = acpi_ex_store (return_desc, operand[1], walk_state);
+	}
+
+
+cleanup:
+
+	if (!walk_state->result_obj) {
+		walk_state->result_obj = return_desc;
+	}
+
+	/* Delete return object on error */
+
+	if (ACPI_FAILURE (status)) {
+		acpi_ut_remove_reference (return_desc);
+	}
+
+	return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_opcode_1A_0T_1R
+ *
+ * PARAMETERS:  walk_state          - Current state (contains AML opcode)
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Execute opcode with one argument, no target, and a return value
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_opcode_1A_0T_1R (
+	struct acpi_walk_state          *walk_state)
+{
+	union acpi_operand_object       **operand = &walk_state->operands[0];
+	union acpi_operand_object       *temp_desc;
+	union acpi_operand_object       *return_desc = NULL;
+	acpi_status                     status = AE_OK;
+	u32                             type;
+	acpi_integer                    value;
+
+
+	ACPI_FUNCTION_TRACE_STR ("ex_opcode_1A_0T_1R", acpi_ps_get_opcode_name (walk_state->opcode));
+
+
+	/* Examine the AML opcode */
+
+	switch (walk_state->opcode) {
+	case AML_LNOT_OP:               /* LNot (Operand) */
+
+		return_desc = acpi_ut_create_internal_object (ACPI_TYPE_INTEGER);
+		if (!return_desc) {
+			status = AE_NO_MEMORY;
+			goto cleanup;
+		}
+
+		/*
+		 * Set result to ONES (TRUE) if Value == 0.  Note:
+		 * return_desc->Integer.Value is initially == 0 (FALSE) from above.
+		 */
+		if (!operand[0]->integer.value) {
+			return_desc->integer.value = ACPI_INTEGER_MAX;
+		}
+		break;
+
+
+	case AML_DECREMENT_OP:          /* Decrement (Operand)  */
+	case AML_INCREMENT_OP:          /* Increment (Operand)  */
+
+		/*
+		 * Create a new integer.  Can't just get the base integer and
+		 * increment it because it may be an Arg or Field.
+		 */
+		return_desc = acpi_ut_create_internal_object (ACPI_TYPE_INTEGER);
+		if (!return_desc) {
+			status = AE_NO_MEMORY;
+			goto cleanup;
+		}
+
+		/*
+		 * Since we are expecting a Reference operand, it can be either a
+		 * NS Node or an internal object.
+		 */
+		temp_desc = operand[0];
+		if (ACPI_GET_DESCRIPTOR_TYPE (temp_desc) == ACPI_DESC_TYPE_OPERAND) {
+			/* Internal reference object - prevent deletion */
+
+			acpi_ut_add_reference (temp_desc);
+		}
+
+		/*
+		 * Convert the Reference operand to an Integer (This removes a
+		 * reference on the Operand[0] object)
+		 *
+		 * NOTE:  We use LNOT_OP here in order to force resolution of the
+		 * reference operand to an actual integer.
+		 */
+		status = acpi_ex_resolve_operands (AML_LNOT_OP, &temp_desc, walk_state);
+		if (ACPI_FAILURE (status)) {
+			ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "%s: bad operand(s) %s\n",
+				acpi_ps_get_opcode_name (walk_state->opcode),
+				acpi_format_exception(status)));
+
+			goto cleanup;
+		}
+
+		/*
+		 * temp_desc is now guaranteed to be an Integer object --
+		 * Perform the actual increment or decrement
+		 */
+		if (walk_state->opcode == AML_INCREMENT_OP) {
+			return_desc->integer.value = temp_desc->integer.value +1;
+		}
+		else {
+			return_desc->integer.value = temp_desc->integer.value -1;
+		}
+
+		/* Finished with this Integer object */
+
+		acpi_ut_remove_reference (temp_desc);
+
+		/*
+		 * Store the result back (indirectly) through the original
+		 * Reference object
+		 */
+		status = acpi_ex_store (return_desc, operand[0], walk_state);
+		break;
+
+
+	case AML_TYPE_OP:               /* object_type (source_object) */
+
+		/*
+		 * Note: The operand is not resolved at this point because we want to
+		 * get the associated object, not its value.  For example, we don't want
+		 * to resolve a field_unit to its value, we want the actual field_unit
+		 * object.
+		 */
+
+		/* Get the type of the base object */
+
+		status = acpi_ex_resolve_multiple (walk_state, operand[0], &type, NULL);
+		if (ACPI_FAILURE (status)) {
+			goto cleanup;
+		}
+		/* Allocate a descriptor to hold the type. */
+
+		return_desc = acpi_ut_create_internal_object (ACPI_TYPE_INTEGER);
+		if (!return_desc) {
+			status = AE_NO_MEMORY;
+			goto cleanup;
+		}
+
+		return_desc->integer.value = type;
+		break;
+
+
+	case AML_SIZE_OF_OP:            /* size_of (source_object) */
+
+		/*
+		 * Note: The operand is not resolved at this point because we want to
+		 * get the associated object, not its value.
+		 */
+
+		/* Get the base object */
+
+		status = acpi_ex_resolve_multiple (walk_state, operand[0], &type, &temp_desc);
+		if (ACPI_FAILURE (status)) {
+			goto cleanup;
+		}
+
+		/*
+		 * The type of the base object must be integer, buffer, string, or
+		 * package.  All others are not supported.
+		 *
+		 * NOTE: Integer is not specifically supported by the ACPI spec,
+		 * but is supported implicitly via implicit operand conversion.
+		 * rather than bother with conversion, we just use the byte width
+		 * global (4 or 8 bytes).
+		 */
+		switch (type) {
+		case ACPI_TYPE_INTEGER:
+			value = acpi_gbl_integer_byte_width;
+			break;
+
+		case ACPI_TYPE_BUFFER:
+			value = temp_desc->buffer.length;
+			break;
+
+		case ACPI_TYPE_STRING:
+			value = temp_desc->string.length;
+			break;
+
+		case ACPI_TYPE_PACKAGE:
+			value = temp_desc->package.count;
+			break;
+
+		default:
+			ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+				"size_of - Operand is not Buf/Int/Str/Pkg - found type %s\n",
+				acpi_ut_get_type_name (type)));
+			status = AE_AML_OPERAND_TYPE;
+			goto cleanup;
+		}
+
+		/*
+		 * Now that we have the size of the object, create a result
+		 * object to hold the value
+		 */
+		return_desc = acpi_ut_create_internal_object (ACPI_TYPE_INTEGER);
+		if (!return_desc) {
+			status = AE_NO_MEMORY;
+			goto cleanup;
+		}
+
+		return_desc->integer.value = value;
+		break;
+
+
+	case AML_REF_OF_OP:             /* ref_of (source_object) */
+
+		status = acpi_ex_get_object_reference (operand[0], &return_desc, walk_state);
+		if (ACPI_FAILURE (status)) {
+			goto cleanup;
+		}
+		break;
+
+
+	case AML_DEREF_OF_OP:           /* deref_of (obj_reference | String) */
+
+		/* Check for a method local or argument, or standalone String */
+
+		if (ACPI_GET_DESCRIPTOR_TYPE (operand[0]) != ACPI_DESC_TYPE_NAMED) {
+			switch (ACPI_GET_OBJECT_TYPE (operand[0])) {
+			case ACPI_TYPE_LOCAL_REFERENCE:
+				/*
+				 * This is a deref_of (local_x | arg_x)
+				 *
+				 * Must resolve/dereference the local/arg reference first
+				 */
+				switch (operand[0]->reference.opcode) {
+				case AML_LOCAL_OP:
+				case AML_ARG_OP:
+
+					/* Set Operand[0] to the value of the local/arg */
+
+					status = acpi_ds_method_data_get_value (operand[0]->reference.opcode,
+							 operand[0]->reference.offset, walk_state, &temp_desc);
+					if (ACPI_FAILURE (status)) {
+						goto cleanup;
+					}
+
+					/*
+					 * Delete our reference to the input object and
+					 * point to the object just retrieved
+					 */
+					acpi_ut_remove_reference (operand[0]);
+					operand[0] = temp_desc;
+					break;
+
+				case AML_REF_OF_OP:
+
+					/* Get the object to which the reference refers */
+
+					temp_desc = operand[0]->reference.object;
+					acpi_ut_remove_reference (operand[0]);
+					operand[0] = temp_desc;
+					break;
+
+				default:
+
+					/* Must be an Index op - handled below */
+					break;
+				}
+				break;
+
+
+			case ACPI_TYPE_STRING:
+
+				/*
+				 * This is a deref_of (String). The string is a reference to a named ACPI object.
+				 *
+				 * 1) Find the owning Node
+				 * 2) Dereference the node to an actual object.  Could be a Field, so we nee
+				 *    to resolve the node to a value.
+				 */
+				status = acpi_ns_get_node_by_path (operand[0]->string.pointer,
+						  walk_state->scope_info->scope.node, ACPI_NS_SEARCH_PARENT,
+						  ACPI_CAST_INDIRECT_PTR (struct acpi_namespace_node, &return_desc));
+				if (ACPI_FAILURE (status)) {
+					goto cleanup;
+				}
+
+				status = acpi_ex_resolve_node_to_value (
+						  ACPI_CAST_INDIRECT_PTR (struct acpi_namespace_node, &return_desc), walk_state);
+				goto cleanup;
+
+
+			default:
+
+				status = AE_AML_OPERAND_TYPE;
+				goto cleanup;
+			}
+		}
+
+		/* Operand[0] may have changed from the code above */
+
+		if (ACPI_GET_DESCRIPTOR_TYPE (operand[0]) == ACPI_DESC_TYPE_NAMED) {
+			/*
+			 * This is a deref_of (object_reference)
+			 * Get the actual object from the Node (This is the dereference).
+			 * -- This case may only happen when a local_x or arg_x is dereferenced above.
+			 */
+			return_desc = acpi_ns_get_attached_object ((struct acpi_namespace_node *) operand[0]);
+		}
+		else {
+			/*
+			 * This must be a reference object produced by either the Index() or
+			 * ref_of() operator
+			 */
+			switch (operand[0]->reference.opcode) {
+			case AML_INDEX_OP:
+
+				/*
+				 * The target type for the Index operator must be
+				 * either a Buffer or a Package
+				 */
+				switch (operand[0]->reference.target_type) {
+				case ACPI_TYPE_BUFFER_FIELD:
+
+					temp_desc = operand[0]->reference.object;
+
+					/*
+					 * Create a new object that contains one element of the
+					 * buffer -- the element pointed to by the index.
+					 *
+					 * NOTE: index into a buffer is NOT a pointer to a
+					 * sub-buffer of the main buffer, it is only a pointer to a
+					 * single element (byte) of the buffer!
+					 */
+					return_desc = acpi_ut_create_internal_object (ACPI_TYPE_INTEGER);
+					if (!return_desc) {
+						status = AE_NO_MEMORY;
+						goto cleanup;
+					}
+
+					/*
+					 * Since we are returning the value of the buffer at the
+					 * indexed location, we don't need to add an additional
+					 * reference to the buffer itself.
+					 */
+					return_desc->integer.value =
+						temp_desc->buffer.pointer[operand[0]->reference.offset];
+					break;
+
+
+				case ACPI_TYPE_PACKAGE:
+
+					/*
+					 * Return the referenced element of the package.  We must add
+					 * another reference to the referenced object, however.
+					 */
+					return_desc = *(operand[0]->reference.where);
+					if (!return_desc) {
+						/*
+						 * We can't return a NULL dereferenced value.  This is
+						 * an uninitialized package element and is thus a
+						 * severe error.
+						 */
+						ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+							"NULL package element obj %p\n",
+							operand[0]));
+						status = AE_AML_UNINITIALIZED_ELEMENT;
+						goto cleanup;
+					}
+
+					acpi_ut_add_reference (return_desc);
+					break;
+
+
+				default:
+
+					ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+						"Unknown Index target_type %X in obj %p\n",
+						operand[0]->reference.target_type, operand[0]));
+					status = AE_AML_OPERAND_TYPE;
+					goto cleanup;
+				}
+				break;
+
+
+			case AML_REF_OF_OP:
+
+				return_desc = operand[0]->reference.object;
+
+				if (ACPI_GET_DESCRIPTOR_TYPE (return_desc) == ACPI_DESC_TYPE_NAMED) {
+
+					return_desc = acpi_ns_get_attached_object ((struct acpi_namespace_node *) return_desc);
+				}
+
+				/* Add another reference to the object! */
+
+				acpi_ut_add_reference (return_desc);
+				break;
+
+
+			default:
+				ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+					"Unknown opcode in ref(%p) - %X\n",
+					operand[0], operand[0]->reference.opcode));
+
+				status = AE_TYPE;
+				goto cleanup;
+			}
+		}
+		break;
+
+
+	default:
+
+		ACPI_REPORT_ERROR (("acpi_ex_opcode_1A_0T_1R: Unknown opcode %X\n",
+			walk_state->opcode));
+		status = AE_AML_BAD_OPCODE;
+		goto cleanup;
+	}
+
+
+cleanup:
+
+	/* Delete return object on error */
+
+	if (ACPI_FAILURE (status)) {
+		acpi_ut_remove_reference (return_desc);
+	}
+
+	walk_state->result_obj = return_desc;
+	return_ACPI_STATUS (status);
+}
+