C++ ACPI_FORMAT_UINT64函数代码示例

//.........这里部分代码省略.........

	switch (obj_desc->common.type) {
	case ACPI_TYPE_INTEGER:

		/* No conversion necessary */

		*result_desc = obj_desc;
		return_ACPI_STATUS(AE_OK);

	case ACPI_TYPE_BUFFER:
	case ACPI_TYPE_STRING:

		/* Note: Takes advantage of common buffer/string fields */

		pointer = obj_desc->buffer.pointer;
		count = obj_desc->buffer.length;
		break;

	default:
		return_ACPI_STATUS(AE_TYPE);
	}

	/*
	 * Convert the buffer/string to an integer. Note that both buffers and
	 * strings are treated as raw data - we don't convert ascii to hex for
	 * strings.
	 *
	 * There are two terminating conditions for the loop:
	 * 1) The size of an integer has been reached, or
	 * 2) The end of the buffer or string has been reached
	 */
	result = 0;

	/* String conversion is different than Buffer conversion */

	switch (obj_desc->common.type) {
	case ACPI_TYPE_STRING:

		/*
		 * Convert string to an integer - for most cases, the string must be
		 * hexadecimal as per the ACPI specification. The only exception (as
		 * of ACPI 3.0) is that the to_integer() operator allows both decimal
		 * and hexadecimal strings (hex prefixed with "0x").
		 */
		status = acpi_ut_strtoul64((char *)pointer, flags, &result);
		if (ACPI_FAILURE(status)) {
			return_ACPI_STATUS(status);
		}
		break;

	case ACPI_TYPE_BUFFER:

		/* Check for zero-length buffer */

		if (!count) {
			return_ACPI_STATUS(AE_AML_BUFFER_LIMIT);
		}

		/* Transfer no more than an integer's worth of data */

		if (count > acpi_gbl_integer_byte_width) {
			count = acpi_gbl_integer_byte_width;
		}

		/*
		 * Convert buffer to an integer - we simply grab enough raw data
		 * from the buffer to fill an integer
		 */
		for (i = 0; i < count; i++) {
			/*
			 * Get next byte and shift it into the Result.
			 * Little endian is used, meaning that the first byte of the buffer
			 * is the LSB of the integer
			 */
			result |= (((u64) pointer[i]) << (i * 8));
		}
		break;

	default:

		/* No other types can get here */
		break;
	}

	/* Create a new integer */

	return_desc = acpi_ut_create_integer_object(result);
	if (!return_desc) {
		return_ACPI_STATUS(AE_NO_MEMORY);
	}

	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n",
			  ACPI_FORMAT_UINT64(result)));

	/* Save the Result */

	acpi_ex_truncate_for32bit_table(return_desc);
	*result_desc = return_desc;
	return_ACPI_STATUS(AE_OK);
}

//.........这里部分代码省略.........

    case ACPI_TYPE_BUFFER:
    case ACPI_TYPE_STRING:

        /* Note: Takes advantage of common buffer/string fields */

        Pointer = ObjDesc->Buffer.Pointer;
        Count   = ObjDesc->Buffer.Length;
        break;

    default:
        return_ACPI_STATUS (AE_TYPE);
    }

    /*
     * Convert the buffer/string to an integer. Note that both buffers and
     * strings are treated as raw data - we don't convert ascii to hex for
     * strings.
     *
     * There are two terminating conditions for the loop:
     * 1) The size of an integer has been reached, or
     * 2) The end of the buffer or string has been reached
     */
    Result = 0;

    /* String conversion is different than Buffer conversion */

    switch (ObjDesc->Common.Type)
    {
    case ACPI_TYPE_STRING:

        /*
         * Convert string to an integer - for most cases, the string must be
         * hexadecimal as per the ACPI specification. The only exception (as
         * of ACPI 3.0) is that the ToInteger() operator allows both decimal
         * and hexadecimal strings (hex prefixed with "0x").
         */
        Status = AcpiUtStrtoul64 ((char *) Pointer, Flags, &Result);
        if (ACPI_FAILURE (Status))
        {
            return_ACPI_STATUS (Status);
        }
        break;


    case ACPI_TYPE_BUFFER:

        /* Check for zero-length buffer */

        if (!Count)
        {
            return_ACPI_STATUS (AE_AML_BUFFER_LIMIT);
        }

        /* Transfer no more than an integer's worth of data */

        if (Count > AcpiGbl_IntegerByteWidth)
        {
            Count = AcpiGbl_IntegerByteWidth;
        }

        /*
         * Convert buffer to an integer - we simply grab enough raw data
         * from the buffer to fill an integer
         */
        for (i = 0; i < Count; i++)
        {
            /*
             * Get next byte and shift it into the Result.
             * Little endian is used, meaning that the first byte of the buffer
             * is the LSB of the integer
             */
            Result |= (((UINT64) Pointer[i]) << (i * 8));
        }
        break;


    default:

        /* No other types can get here */
        break;
    }

    /* Create a new integer */

    ReturnDesc = AcpiUtCreateIntegerObject (Result);
    if (!ReturnDesc)
    {
        return_ACPI_STATUS (AE_NO_MEMORY);
    }

    ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n",
        ACPI_FORMAT_UINT64 (Result)));

    /* Save the Result */

    (void) AcpiExTruncateFor32bitTable (ReturnDesc);
    *ResultDesc = ReturnDesc;
    return_ACPI_STATUS (AE_OK);
}

//.........这里部分代码省略.........

                /* Truncate value if we are executing from a 32-bit ACPI table */

#ifndef ACPI_NO_METHOD_EXECUTION
                (void) AcpiExTruncateFor32bitTable (ObjDesc);
#endif
                break;

            case AML_REVISION_OP:

                ObjDesc->Integer.Value = ACPI_CA_VERSION;
                break;

            default:

                ACPI_ERROR ((AE_INFO,
                    "Unknown constant opcode 0x%X", Opcode));
                Status = AE_AML_OPERAND_TYPE;
                break;
            }
            break;

        case AML_TYPE_LITERAL:

            ObjDesc->Integer.Value = Op->Common.Value.Integer;

#ifndef ACPI_NO_METHOD_EXECUTION
            if (AcpiExTruncateFor32bitTable (ObjDesc))
            {
                /* Warn if we found a 64-bit constant in a 32-bit table */

                ACPI_WARNING ((AE_INFO,
                    "Truncated 64-bit constant found in 32-bit table: %8.8X%8.8X => %8.8X",
                    ACPI_FORMAT_UINT64 (Op->Common.Value.Integer),
                    (UINT32) ObjDesc->Integer.Value));
            }
#endif
            break;

        default:

            ACPI_ERROR ((AE_INFO, "Unknown Integer type 0x%X",
                OpInfo->Type));
            Status = AE_AML_OPERAND_TYPE;
            break;
        }
        break;

    case ACPI_TYPE_STRING:

        ObjDesc->String.Pointer = Op->Common.Value.String;
        ObjDesc->String.Length = (UINT32) ACPI_STRLEN (Op->Common.Value.String);

        /*
         * The string is contained in the ACPI table, don't ever try
         * to delete it
         */
        ObjDesc->Common.Flags |= AOPOBJ_STATIC_POINTER;
        break;

    case ACPI_TYPE_METHOD:
        break;

    case ACPI_TYPE_LOCAL_REFERENCE:

        switch (OpInfo->Type)

ACPI_STATUS
AcpiExOpcode_6A_0T_1R (
    ACPI_WALK_STATE         *WalkState)
{
    ACPI_OPERAND_OBJECT     **Operand = &WalkState->Operands[0];
    ACPI_OPERAND_OBJECT     *ReturnDesc = NULL;
    ACPI_STATUS             Status = AE_OK;
    UINT64                  Index;
    ACPI_OPERAND_OBJECT     *ThisElement;


    ACPI_FUNCTION_TRACE_STR (ExOpcode_6A_0T_1R,
        AcpiPsGetOpcodeName (WalkState->Opcode));


    switch (WalkState->Opcode)
    {
    case AML_MATCH_OP:
        /*
         * Match (SearchPkg[0], MatchOp1[1], MatchObj1[2],
         *                      MatchOp2[3], MatchObj2[4], StartIndex[5])
         */

        /* Validate both Match Term Operators (MTR, MEQ, etc.) */

        if ((Operand[1]->Integer.Value > MAX_MATCH_OPERATOR) ||
            (Operand[3]->Integer.Value > MAX_MATCH_OPERATOR))
        {
            ACPI_ERROR ((AE_INFO, "Match operator out of range"));
            Status = AE_AML_OPERAND_VALUE;
            goto Cleanup;
        }

        /* Get the package StartIndex, validate against the package length */

        Index = Operand[5]->Integer.Value;
        if (Index >= Operand[0]->Package.Count)
        {
            ACPI_ERROR ((AE_INFO,
                "Index (0x%8.8X%8.8X) beyond package end (0x%X)",
                ACPI_FORMAT_UINT64 (Index), Operand[0]->Package.Count));
            Status = AE_AML_PACKAGE_LIMIT;
            goto Cleanup;
        }

        /* Create an integer for the return value */
        /* Default return value is ACPI_UINT64_MAX if no match found */

        ReturnDesc = AcpiUtCreateIntegerObject (ACPI_UINT64_MAX);
        if (!ReturnDesc)
        {
            Status = AE_NO_MEMORY;
            goto Cleanup;

        }

        /*
         * Examine each element until a match is found. Both match conditions
         * must be satisfied for a match to occur. Within the loop,
         * "continue" signifies that the current element does not match
         * and the next should be examined.
         *
         * Upon finding a match, the loop will terminate via "break" at
         * the bottom. If it terminates "normally", MatchValue will be
         * ACPI_UINT64_MAX (Ones) (its initial value) indicating that no
         * match was found.
         */
        for ( ; Index < Operand[0]->Package.Count; Index++)
        {
            /* Get the current package element */

            ThisElement = Operand[0]->Package.Elements[Index];

            /* Treat any uninitialized (NULL) elements as non-matching */

            if (!ThisElement)
            {
                continue;
            }

            /*
             * Both match conditions must be satisfied. Execution of a continue
             * (proceed to next iteration of enclosing for loop) signifies a
             * non-match.
             */
            if (!AcpiExDoMatch ((UINT32) Operand[1]->Integer.Value,
                    ThisElement, Operand[2]))
            {
                continue;
            }

            if (!AcpiExDoMatch ((UINT32) Operand[3]->Integer.Value,
                    ThisElement, Operand[4]))
            {
                continue;
            }

            /* Match found: Index is the return value */

            ReturnDesc->Integer.Value = Index;
//.........这里部分代码省略.........

//.........这里部分代码省略.........
        MapLength = (ACPI_SIZE)
            ((MemInfo->Address + MemInfo->Length) - Address);

        /*
         * If mapping the entire remaining portion of the region will cross
         * a page boundary, just map up to the page boundary, do not cross.
         * On some systems, crossing a page boundary while mapping regions
         * can cause warnings if the pages have different attributes
         * due to resource management.
         *
         * This has the added benefit of constraining a single mapping to
         * one page, which is similar to the original code that used a 4k
         * maximum window.
         */
        PageBoundaryMapLength = (ACPI_SIZE)
            (ACPI_ROUND_UP (Address, ACPI_DEFAULT_PAGE_SIZE) - Address);
        if (PageBoundaryMapLength == 0)
        {
            PageBoundaryMapLength = ACPI_DEFAULT_PAGE_SIZE;
        }

        if (MapLength > PageBoundaryMapLength)
        {
            MapLength = PageBoundaryMapLength;
        }

        /* Create a new mapping starting at the address given */

        MemInfo->MappedLogicalAddress = AcpiOsMapMemory (Address, MapLength);
        if (!MemInfo->MappedLogicalAddress)
        {
            ACPI_ERROR ((AE_INFO,
                "Could not map memory at 0x%8.8X%8.8X, size %u",
                ACPI_FORMAT_UINT64 (Address), (UINT32) MapLength));
            MemInfo->MappedLength = 0;
            return_ACPI_STATUS (AE_NO_MEMORY);
        }

        /* Save the physical address and mapping size */

        MemInfo->MappedPhysicalAddress = Address;
        MemInfo->MappedLength = MapLength;
    }

    /*
     * Generate a logical pointer corresponding to the address we want to
     * access
     */
    LogicalAddrPtr = MemInfo->MappedLogicalAddress +
        ((UINT64) Address - (UINT64) MemInfo->MappedPhysicalAddress);

    ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
        "System-Memory (width %u) R/W %u Address=%8.8X%8.8X\n",
        BitWidth, Function, ACPI_FORMAT_UINT64 (Address)));

    /*
     * Perform the memory read or write
     *
     * Note: For machines that do not support non-aligned transfers, the target
     * address was checked for alignment above. We do not attempt to break the
     * transfer up into smaller (byte-size) chunks because the AML specifically
     * asked for a transfer width that the hardware may require.
     */
    switch (Function)
    {
    case ACPI_READ:

static void acpi_tb_validate_fadt(void)
{
	char *name;
	struct acpi_generic_address *address64;
	u8 length;
	u32 i;

	/*
	 * Check for FACS and DSDT address mismatches. An address mismatch between
	 * the 32-bit and 64-bit address fields (FIRMWARE_CTRL/X_FIRMWARE_CTRL and
	 * DSDT/X_DSDT) would indicate the presence of two FACS or two DSDT tables.
	 */
	if (acpi_gbl_FADT.facs &&
	    (acpi_gbl_FADT.Xfacs != (u64)acpi_gbl_FADT.facs)) {
		ACPI_BIOS_WARNING((AE_INFO,
				   "32/64X FACS address mismatch in FADT - "
				   "0x%8.8X/0x%8.8X%8.8X, using 32",
				   acpi_gbl_FADT.facs,
				   ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xfacs)));

		acpi_gbl_FADT.Xfacs = (u64)acpi_gbl_FADT.facs;
	}

	if (acpi_gbl_FADT.dsdt &&
	    (acpi_gbl_FADT.Xdsdt != (u64)acpi_gbl_FADT.dsdt)) {
		ACPI_BIOS_WARNING((AE_INFO,
				   "32/64X DSDT address mismatch in FADT - "
				   "0x%8.8X/0x%8.8X%8.8X, using 32",
				   acpi_gbl_FADT.dsdt,
				   ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xdsdt)));

		acpi_gbl_FADT.Xdsdt = (u64)acpi_gbl_FADT.dsdt;
	}

	/* If Hardware Reduced flag is set, we are all done */

	if (acpi_gbl_reduced_hardware) {
		return;
	}

	/* Examine all of the 64-bit extended address fields (X fields) */

	for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) {
		/*
		 * Generate pointer to the 64-bit address, get the register
		 * length (width) and the register name
		 */
		address64 = ACPI_ADD_PTR(struct acpi_generic_address,
					 &acpi_gbl_FADT,
					 fadt_info_table[i].address64);
		length =
		    *ACPI_ADD_PTR(u8, &acpi_gbl_FADT,
				  fadt_info_table[i].length);
		name = fadt_info_table[i].name;

		/*
		 * For each extended field, check for length mismatch between the
		 * legacy length field and the corresponding 64-bit X length field.
		 */
		if (address64->address &&
		    (address64->bit_width != ACPI_MUL_8(length))) {
			ACPI_BIOS_WARNING((AE_INFO,
					   "32/64X length mismatch in FADT/%s: %u/%u",
					   name, ACPI_MUL_8(length),
					   address64->bit_width));
		}

		if (fadt_info_table[i].type & ACPI_FADT_REQUIRED) {
			/*
			 * Field is required (Pm1a_event, Pm1a_control, pm_timer).
			 * Both the address and length must be non-zero.
			 */
			if (!address64->address || !length) {
				ACPI_BIOS_ERROR((AE_INFO,
						 "Required FADT field %s has zero address and/or length: "
						 "0x%8.8X%8.8X/0x%X",
						 name,
						 ACPI_FORMAT_UINT64(address64->
								    address),
						 length));
			}
		} else if (fadt_info_table[i].type & ACPI_FADT_SEPARATE_LENGTH) {
			/*
			 * Field is optional (Pm2_control, GPE0, GPE1) AND has its own
			 * length field. If present, both the address and length must
			 * be valid.
			 */
			if ((address64->address && !length) ||
			    (!address64->address && length)) {
				ACPI_BIOS_WARNING((AE_INFO,
						   "Optional FADT field %s has zero address or length: "
						   "0x%8.8X%8.8X/0x%X",
						   name,
						   ACPI_FORMAT_UINT64
						   (address64->address),
						   length));
			}
		}
	}
}

ACPI_STATUS
AcpiDsEvalTableRegionOperands (
    ACPI_WALK_STATE         *WalkState,
    ACPI_PARSE_OBJECT       *Op)
{
    ACPI_STATUS             Status;
    ACPI_OPERAND_OBJECT     *ObjDesc;
    ACPI_OPERAND_OBJECT     **Operand;
    ACPI_NAMESPACE_NODE     *Node;
    ACPI_PARSE_OBJECT       *NextOp;
    ACPI_TABLE_HEADER       *Table;
    UINT32                  TableIndex;


    ACPI_FUNCTION_TRACE_PTR (DsEvalTableRegionOperands, Op);


    /*
     * This is where we evaluate the Signature string, OemId string,
     * and OemTableId string of the Data Table Region declaration
     */
    Node =  Op->Common.Node;

    /* NextOp points to Signature string op */

    NextOp = Op->Common.Value.Arg;

    /*
     * Evaluate/create the Signature string, OemId string,
     * and OemTableId string operands
     */
    Status = AcpiDsCreateOperands (WalkState, NextOp);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    Operand = &WalkState->Operands[0];

    /*
     * Resolve the Signature string, OemId string,
     * and OemTableId string operands
     */
    Status = AcpiExResolveOperands (
        Op->Common.AmlOpcode, ACPI_WALK_OPERANDS, WalkState);
    if (ACPI_FAILURE (Status))
    {
        goto Cleanup;
    }

    /* Find the ACPI table */

    Status = AcpiTbFindTable (
        Operand[0]->String.Pointer,
        Operand[1]->String.Pointer,
        Operand[2]->String.Pointer, &TableIndex);
    if (ACPI_FAILURE (Status))
    {
        if (Status == AE_NOT_FOUND)
        {
            ACPI_ERROR ((AE_INFO,
                "ACPI Table [%4.4s] OEM:(%s, %s) not found in RSDT/XSDT",
                Operand[0]->String.Pointer,
                Operand[1]->String.Pointer,
                Operand[2]->String.Pointer));
        }
        goto Cleanup;
    }

    Status = AcpiGetTableByIndex (TableIndex, &Table);
    if (ACPI_FAILURE (Status))
    {
        goto Cleanup;
    }

    ObjDesc = AcpiNsGetAttachedObject (Node);
    if (!ObjDesc)
    {
        Status = AE_NOT_EXIST;
        goto Cleanup;
    }

    ObjDesc->Region.Address = ACPI_PTR_TO_PHYSADDR (Table);
    ObjDesc->Region.Length = Table->Length;

    ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n",
        ObjDesc, ACPI_FORMAT_UINT64 (ObjDesc->Region.Address),
        ObjDesc->Region.Length));

    /* Now the address and length are valid for this opregion */

    ObjDesc->Region.Flags |= AOPOBJ_DATA_VALID;

Cleanup:
    AcpiUtRemoveReference (Operand[0]);
    AcpiUtRemoveReference (Operand[1]);
    AcpiUtRemoveReference (Operand[2]);

    return_ACPI_STATUS (Status);
}

//.........这里部分代码省略.........

    case EXPOP_DIVIDE:
        if (!RightValue)
        {
            DtError (ASL_ERROR, ASL_MSG_DIVIDE_BY_ZERO,
                Gbl_CurrentField, Gbl_CurrentField->Value);
            return (0);
        }
        Result = LeftValue / RightValue;
        break;

    case EXPOP_MODULO:
        if (!RightValue)
        {
            DtError (ASL_ERROR, ASL_MSG_DIVIDE_BY_ZERO,
                Gbl_CurrentField, Gbl_CurrentField->Value);
            return (0);
        }
        Result = LeftValue % RightValue;
        break;

    case EXPOP_ADD:
        Result = LeftValue + RightValue;
        break;

    case EXPOP_SUBTRACT:
        Result = LeftValue - RightValue;
        break;

    case EXPOP_SHIFT_RIGHT:
        Result = LeftValue >> RightValue;
        break;

    case EXPOP_SHIFT_LEFT:
        Result = LeftValue << RightValue;
        break;

    case EXPOP_LESS:
        Result = LeftValue < RightValue;
        break;

    case EXPOP_GREATER:
        Result = LeftValue > RightValue;
        break;

    case EXPOP_LESS_EQUAL:
        Result = LeftValue <= RightValue;
        break;

    case EXPOP_GREATER_EQUAL:
        Result = LeftValue >= RightValue;
        break;

    case EXPOP_EQUAL:
        Result = LeftValue = RightValue;
        break;

    case EXPOP_NOT_EQUAL:
        Result = LeftValue != RightValue;
        break;

    case EXPOP_AND:
        Result = LeftValue & RightValue;
        break;

    case EXPOP_XOR:
        Result = LeftValue ^ RightValue;
        break;

    case EXPOP_OR:
        Result = LeftValue | RightValue;
        break;

    case EXPOP_LOGICAL_AND:
        Result = LeftValue && RightValue;
        break;

    case EXPOP_LOGICAL_OR:
        Result = LeftValue || RightValue;
        break;

   default:

        /* Unknown operator */

        DtFatal (ASL_MSG_INVALID_EXPRESSION,
            Gbl_CurrentField, Gbl_CurrentField->Value);
        return (0);
    }

    DbgPrint (ASL_DEBUG_OUTPUT,
        "IntegerEval: %s (%8.8X%8.8X %s %8.8X%8.8X) = %8.8X%8.8X\n",
        Gbl_CurrentField->Value,
        ACPI_FORMAT_UINT64 (LeftValue),
        DtGetOpName (Operator),
        ACPI_FORMAT_UINT64 (RightValue),
        ACPI_FORMAT_UINT64 (Result));

    return (Result);
}

void
AcpiDbDisplayObjectType (
    char                    *Name)
{
    ACPI_NAMESPACE_NODE     *Node;
    ACPI_DEVICE_INFO        *Info;
    ACPI_STATUS             Status;
    UINT32                  i;


    Node = AcpiDbConvertToNode (Name);
    if (!Node)
    {
        return;
    }

    Status = AcpiGetObjectInfo (ACPI_CAST_PTR (ACPI_HANDLE, Node), &Info);
    if (ACPI_FAILURE (Status))
    {
        AcpiOsPrintf ("Could not get object info, %s\n",
            AcpiFormatException (Status));
        return;
    }

    if (Info->Valid & ACPI_VALID_ADR)
    {
        AcpiOsPrintf ("ADR: %8.8X%8.8X, STA: %8.8X, Flags: %X\n",
            ACPI_FORMAT_UINT64 (Info->Address),
            Info->CurrentStatus, Info->Flags);
    }
    if (Info->Valid & ACPI_VALID_SXDS)
    {
        AcpiOsPrintf ("S1D-%2.2X S2D-%2.2X S3D-%2.2X S4D-%2.2X\n",
            Info->HighestDstates[0], Info->HighestDstates[1],
            Info->HighestDstates[2], Info->HighestDstates[3]);
    }
    if (Info->Valid & ACPI_VALID_SXWS)
    {
        AcpiOsPrintf ("S0W-%2.2X S1W-%2.2X S2W-%2.2X S3W-%2.2X S4W-%2.2X\n",
            Info->LowestDstates[0], Info->LowestDstates[1],
            Info->LowestDstates[2], Info->LowestDstates[3],
            Info->LowestDstates[4]);
    }

    if (Info->Valid & ACPI_VALID_HID)
    {
        AcpiOsPrintf ("HID: %s\n", Info->HardwareId.String);
    }
    if (Info->Valid & ACPI_VALID_UID)
    {
        AcpiOsPrintf ("UID: %s\n", Info->UniqueId.String);
    }
    if (Info->Valid & ACPI_VALID_SUB)
    {
        AcpiOsPrintf ("SUB: %s\n", Info->SubsystemId.String);
    }
    if (Info->Valid & ACPI_VALID_CID)
    {
        for (i = 0; i < Info->CompatibleIdList.Count; i++)
        {
            AcpiOsPrintf ("CID %u: %s\n", i,
                Info->CompatibleIdList.Ids[i].String);
        }
    }

    ACPI_FREE (Info);
}

acpi_status
acpi_ds_eval_region_operands(struct acpi_walk_state *walk_state,
			     union acpi_parse_object *op)
{
	acpi_status status;
	union acpi_operand_object *obj_desc;
	union acpi_operand_object *operand_desc;
	struct acpi_namespace_node *node;
	union acpi_parse_object *next_op;

	ACPI_FUNCTION_TRACE_PTR(ds_eval_region_operands, op);

	/*
	 * This is where we evaluate the address and length fields of the
	 * op_region declaration
	 */
	node = op->common.node;

	/* next_op points to the op that holds the space_ID */

	next_op = op->common.value.arg;

	/* next_op points to address op */

	next_op = next_op->common.next;

	/* Evaluate/create the address and length operands */

	status = acpi_ds_create_operands(walk_state, next_op);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	/* Resolve the length and address operands to numbers */

	status = acpi_ex_resolve_operands(op->common.aml_opcode,
					  ACPI_WALK_OPERANDS, walk_state);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	obj_desc = acpi_ns_get_attached_object(node);
	if (!obj_desc) {
		return_ACPI_STATUS(AE_NOT_EXIST);
	}

	/*
	 * Get the length operand and save it
	 * (at Top of stack)
	 */
	operand_desc = walk_state->operands[walk_state->num_operands - 1];

	obj_desc->region.length = (u32) operand_desc->integer.value;
	acpi_ut_remove_reference(operand_desc);

	/*
	 * Get the address and save it
	 * (at top of stack - 1)
	 */
	operand_desc = walk_state->operands[walk_state->num_operands - 2];

	obj_desc->region.address = (acpi_physical_address)
	    operand_desc->integer.value;
	acpi_ut_remove_reference(operand_desc);

	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n",
			  obj_desc,
			  ACPI_FORMAT_UINT64(obj_desc->region.address),
			  obj_desc->region.length));

	/* Now the address and length are valid for this opregion */

	obj_desc->region.flags |= AOPOBJ_DATA_VALID;

	return_ACPI_STATUS(status);
}

acpi_status
acpi_ds_eval_table_region_operands(struct acpi_walk_state *walk_state,
				   union acpi_parse_object *op)
{
	acpi_status status;
	union acpi_operand_object *obj_desc;
	union acpi_operand_object **operand;
	struct acpi_namespace_node *node;
	union acpi_parse_object *next_op;
	u32 table_index;
	struct acpi_table_header *table;

	ACPI_FUNCTION_TRACE_PTR(ds_eval_table_region_operands, op);

	/*
	 * This is where we evaluate the Signature string, oem_id string,
	 * and oem_table_id string of the Data Table Region declaration
	 */
	node = op->common.node;

	/* next_op points to Signature string op */

	next_op = op->common.value.arg;

	/*
	 * Evaluate/create the Signature string, oem_id string,
	 * and oem_table_id string operands
	 */
	status = acpi_ds_create_operands(walk_state, next_op);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	/*
	 * Resolve the Signature string, oem_id string,
	 * and oem_table_id string operands
	 */
	status = acpi_ex_resolve_operands(op->common.aml_opcode,
					  ACPI_WALK_OPERANDS, walk_state);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	operand = &walk_state->operands[0];

	/* Find the ACPI table */

	status = acpi_tb_find_table(operand[0]->string.pointer,
				    operand[1]->string.pointer,
				    operand[2]->string.pointer, &table_index);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	acpi_ut_remove_reference(operand[0]);
	acpi_ut_remove_reference(operand[1]);
	acpi_ut_remove_reference(operand[2]);

	status = acpi_get_table_by_index(table_index, &table);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	obj_desc = acpi_ns_get_attached_object(node);
	if (!obj_desc) {
		return_ACPI_STATUS(AE_NOT_EXIST);
	}

	obj_desc->region.address = ACPI_PTR_TO_PHYSADDR(table);
	obj_desc->region.length = table->length;

	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n",
			  obj_desc,
			  ACPI_FORMAT_UINT64(obj_desc->region.address),
			  obj_desc->region.length));

	/* Now the address and length are valid for this opregion */

	obj_desc->region.flags |= AOPOBJ_DATA_VALID;

	return_ACPI_STATUS(status);
}

acpi_status
acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc,
			       u64 mask,
			       u64 field_value, u32 field_datum_byte_offset)
{
	acpi_status status = AE_OK;
	u64 merged_value;
	u64 current_value;

	ACPI_FUNCTION_TRACE_U32(ex_write_with_update_rule, mask);

	/* Start with the new bits  */

	merged_value = field_value;

	/* If the mask is all ones, we don't need to worry about the update rule */

	if (mask != ACPI_UINT64_MAX) {

		/* Decode the update rule */

		switch (obj_desc->common_field.
			field_flags & AML_FIELD_UPDATE_RULE_MASK) {
		case AML_FIELD_UPDATE_PRESERVE:
			/*
			 * Check if update rule needs to be applied (not if mask is all
			 * ones)  The left shift drops the bits we want to ignore.
			 */
			if ((~mask << (ACPI_MUL_8(sizeof(mask)) -
				       ACPI_MUL_8(obj_desc->common_field.
						  access_byte_width))) != 0) {
				/*
				 * Read the current contents of the byte/word/dword containing
				 * the field, and merge with the new field value.
				 */
				status =
				    acpi_ex_field_datum_io(obj_desc,
							   field_datum_byte_offset,
							   &current_value,
							   ACPI_READ);
				if (ACPI_FAILURE(status)) {
					return_ACPI_STATUS(status);
				}

				merged_value |= (current_value & ~mask);
			}
			break;

		case AML_FIELD_UPDATE_WRITE_AS_ONES:

			/* Set positions outside the field to all ones */

			merged_value |= ~mask;
			break;

		case AML_FIELD_UPDATE_WRITE_AS_ZEROS:

			/* Set positions outside the field to all zeros */

			merged_value &= mask;
			break;

		default:

			ACPI_ERROR((AE_INFO,
				    "Unknown UpdateRule value: 0x%X",
				    (obj_desc->common_field.
				     field_flags &
				     AML_FIELD_UPDATE_RULE_MASK)));
			return_ACPI_STATUS(AE_AML_OPERAND_VALUE);
		}
	}

	ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
			  "Mask %8.8X%8.8X, DatumOffset %X, Width %X, Value %8.8X%8.8X, MergedValue %8.8X%8.8X\n",
			  ACPI_FORMAT_UINT64(mask),
			  field_datum_byte_offset,
			  obj_desc->common_field.access_byte_width,
			  ACPI_FORMAT_UINT64(field_value),
			  ACPI_FORMAT_UINT64(merged_value)));

	/* Write the merged value */

	status = acpi_ex_field_datum_io(obj_desc, field_datum_byte_offset,
					&merged_value, ACPI_WRITE);

	return_ACPI_STATUS(status);
}

//.........这里部分代码省略.........
						     value));
		if (ACPI_FAILURE(status)) {
			return_ACPI_STATUS(status);
		}

		/*
		 * Now that the Bank has been selected, fall through to the
		 * region_field case and write the datum to the Operation Region
		 */

		/*lint -fallthrough */

	case ACPI_TYPE_LOCAL_REGION_FIELD:
		/*
		 * For simple region_fields, we just directly access the owning
		 * Operation Region.
		 */
		status =
		    acpi_ex_access_region(obj_desc, field_datum_byte_offset,
					  value, read_write);
		break;

	case ACPI_TYPE_LOCAL_INDEX_FIELD:
		/*
		 * Ensure that the index_value is not beyond the capacity of
		 * the register
		 */
		if (acpi_ex_register_overflow(obj_desc->index_field.index_obj,
					      (u64) obj_desc->index_field.
					      value)) {
			return_ACPI_STATUS(AE_AML_REGISTER_LIMIT);
		}

		/* Write the index value to the index_register (itself a region_field) */

		field_datum_byte_offset += obj_desc->index_field.value;

		ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
				  "Write to Index Register: Value %8.8X\n",
				  field_datum_byte_offset));

		status =
		    acpi_ex_insert_into_field(obj_desc->index_field.index_obj,
					      &field_datum_byte_offset,
					      sizeof(field_datum_byte_offset));
		if (ACPI_FAILURE(status)) {
			return_ACPI_STATUS(status);
		}

		if (read_write == ACPI_READ) {

			/* Read the datum from the data_register */

			ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
					  "Read from Data Register\n"));

			status =
			    acpi_ex_extract_from_field(obj_desc->index_field.
						       data_obj, value,
						       sizeof(u64));
		} else {
			/* Write the datum to the data_register */

			ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
					  "Write to Data Register: Value %8.8X%8.8X\n",
					  ACPI_FORMAT_UINT64(*value)));

			status =
			    acpi_ex_insert_into_field(obj_desc->index_field.
						      data_obj, value,
						      sizeof(u64));
		}
		break;

	default:

		ACPI_ERROR((AE_INFO, "Wrong object type in field I/O %u",
			    obj_desc->common.type));
		status = AE_AML_INTERNAL;
		break;
	}

	if (ACPI_SUCCESS(status)) {
		if (read_write == ACPI_READ) {
			ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
					  "Value Read %8.8X%8.8X, Width %u\n",
					  ACPI_FORMAT_UINT64(*value),
					  obj_desc->common_field.
					  access_byte_width));
		} else {
			ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
					  "Value Written %8.8X%8.8X, Width %u\n",
					  ACPI_FORMAT_UINT64(*value),
					  obj_desc->common_field.
					  access_byte_width));
		}
	}

	return_ACPI_STATUS(status);
}

acpi_status
acpi_ex_access_region(union acpi_operand_object *obj_desc,
		      u32 field_datum_byte_offset, u64 *value, u32 function)
{
	acpi_status status;
	union acpi_operand_object *rgn_desc;
	u32 region_offset;

	ACPI_FUNCTION_TRACE(ex_access_region);

	/*
	 * Ensure that the region operands are fully evaluated and verify
	 * the validity of the request
	 */
	status = acpi_ex_setup_region(obj_desc, field_datum_byte_offset);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	/*
	 * The physical address of this field datum is:
	 *
	 * 1) The base of the region, plus
	 * 2) The base offset of the field, plus
	 * 3) The current offset into the field
	 */
	rgn_desc = obj_desc->common_field.region_obj;
	region_offset =
	    obj_desc->common_field.base_byte_offset + field_datum_byte_offset;

	if ((function & ACPI_IO_MASK) == ACPI_READ) {
		ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, "[READ]"));
	} else {
		ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, "[WRITE]"));
	}

	ACPI_DEBUG_PRINT_RAW((ACPI_DB_BFIELD,
			      " Region [%s:%X], Width %X, ByteBase %X, Offset %X at %8.8X%8.8X\n",
			      acpi_ut_get_region_name(rgn_desc->region.
						      space_id),
			      rgn_desc->region.space_id,
			      obj_desc->common_field.access_byte_width,
			      obj_desc->common_field.base_byte_offset,
			      field_datum_byte_offset,
			      ACPI_FORMAT_UINT64(rgn_desc->region.address +
						 region_offset)));

	/* Invoke the appropriate address_space/op_region handler */

	status = acpi_ev_address_space_dispatch(rgn_desc, obj_desc,
						function, region_offset,
						ACPI_MUL_8(obj_desc->
							   common_field.
							   access_byte_width),
						value);

	if (ACPI_FAILURE(status)) {
		if (status == AE_NOT_IMPLEMENTED) {
			ACPI_ERROR((AE_INFO,
				    "Region %s (ID=%u) not implemented",
				    acpi_ut_get_region_name(rgn_desc->region.
							    space_id),
				    rgn_desc->region.space_id));
		} else if (status == AE_NOT_EXIST) {
			ACPI_ERROR((AE_INFO,
				    "Region %s (ID=%u) has no handler",
				    acpi_ut_get_region_name(rgn_desc->region.
							    space_id),
				    rgn_desc->region.space_id));
		}
	}

	return_ACPI_STATUS(status);
}

//.........这里部分代码省略.........
                Digit >>= 4;

                /* Next power of 10 */

                PowerOfTen *= 10;
            }
            break;

        case AML_TO_BCD_OP:             /* ToBcd (Operand, Result)  */

            ReturnDesc->Integer.Value = 0;
            Digit = Operand[0]->Integer.Value;

            /* Each BCD digit is one nybble wide */

            for (i = 0; (i < AcpiGbl_IntegerNybbleWidth) && (Digit > 0); i++)
            {
                (void) AcpiUtShortDivide (Digit, 10, &Digit, &Temp32);

                /*
                 * Insert the BCD digit that resides in the
                 * remainder from above
                 */
                ReturnDesc->Integer.Value |=
                    (((UINT64) Temp32) << ACPI_MUL_4 (i));
            }

            /* Overflow if there is any data left in Digit */

            if (Digit > 0)
            {
                ACPI_ERROR ((AE_INFO,
                    "Integer too large to convert to BCD: 0x%8.8X%8.8X",
                    ACPI_FORMAT_UINT64 (Operand[0]->Integer.Value)));
                Status = AE_AML_NUMERIC_OVERFLOW;
                goto Cleanup;
            }
            break;

        case AML_COND_REF_OF_OP:        /* CondRefOf (SourceObject, 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 ((ACPI_NAMESPACE_NODE *) Operand[0] == AcpiGbl_RootNode)
            {
                /*
                 * This means that the object does not exist in the namespace,
                 * return FALSE
                 */
                ReturnDesc->Integer.Value = 0;
                goto Cleanup;
            }

            /* Get the object reference, store it, and remove our reference */

            Status = AcpiExGetObjectReference (Operand[0],
                        &ReturnDesc2, WalkState);
            if (ACPI_FAILURE (Status))
            {
                goto Cleanup;
            }

            Status = AcpiExStore (ReturnDesc2, Operand[1], WalkState);
            AcpiUtRemoveReference (ReturnDesc2);