C++ ACPI_MOVE_NAME函数代码示例

acpi_status
acpi_ns_handle_to_name(acpi_handle target_handle, struct acpi_buffer *buffer)
{
	acpi_status status;
	struct acpi_namespace_node *node;
	const char *node_name;

	ACPI_FUNCTION_TRACE_PTR(ns_handle_to_name, target_handle);

	node = acpi_ns_validate_handle(target_handle);
	if (!node) {
		return_ACPI_STATUS(AE_BAD_PARAMETER);
	}

	/* Validate/Allocate/Clear caller buffer */

	status = acpi_ut_initialize_buffer(buffer, ACPI_PATH_SEGMENT_LENGTH);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	/* Just copy the ACPI name from the Node and zero terminate it */

	node_name = acpi_ut_get_node_name(node);
	ACPI_MOVE_NAME(buffer->pointer, node_name);
	((char *)buffer->pointer)[ACPI_NAME_SIZE] = 0;

	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%4.4s\n", (char *)buffer->pointer));
	return_ACPI_STATUS(AE_OK);
}

static acpi_status
osl_table_name_from_file(char *filename, char *signature, u32 *instance)
{

	/* Ignore meaningless files */

	if (strlen(filename) < ACPI_NAME_SIZE) {
		return (AE_BAD_SIGNATURE);
	}

	/* Extract instance number */

	if (isdigit((int)filename[ACPI_NAME_SIZE])) {
		sscanf(&filename[ACPI_NAME_SIZE], "%d", instance);
	} else if (strlen(filename) != ACPI_NAME_SIZE) {
		return (AE_BAD_SIGNATURE);
	} else {
		*instance = 0;
	}

	/* Extract signature */

	ACPI_MOVE_NAME(signature, filename);
	return (AE_OK);
}

void
AcpiUtRepairName (
    char                    *Name)
{
    UINT32                  i;
    BOOLEAN                 FoundBadChar = FALSE;
    UINT32                  OriginalName;


    ACPI_FUNCTION_NAME (UtRepairName);


    /*
     * Special case for the root node. This can happen if we get an
     * error during the execution of module-level code.
     */
    if (ACPI_COMPARE_NAME (Name, "\\___"))
    {
        return;
    }

    ACPI_MOVE_NAME (&OriginalName, Name);

    /* Check each character in the name */

    for (i = 0; i < ACPI_NAME_SIZE; i++)
    {
        if (AcpiUtValidAcpiChar (Name[i], i))
        {
            continue;
        }

        /*
         * Replace a bad character with something printable, yet technically
         * still invalid. This prevents any collisions with existing "good"
         * names in the namespace.
         */
        Name[i] = '*';
        FoundBadChar = TRUE;
    }

    if (FoundBadChar)
    {
        /* Report warning only if in strict mode or debug mode */

        if (!AcpiGbl_EnableInterpreterSlack)
        {
            ACPI_WARNING ((AE_INFO,
                "Invalid character(s) in name (0x%.8X), repaired: [%4.4s]",
                OriginalName, Name));
        }
        else
        {
            ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
                "Invalid character(s) in name (0x%.8X), repaired: [%4.4s]",
                OriginalName, Name));
        }
    }
}

static acpi_status osl_add_table_to_list(char *signature, u32 instance)
{
	struct osl_table_info *new_info;
	struct osl_table_info *next;
	u32 next_instance = 0;
	u8 found = FALSE;

	new_info = calloc(1, sizeof(struct osl_table_info));
	if (!new_info) {
		return (AE_NO_MEMORY);
	}

	ACPI_MOVE_NAME(new_info->signature, signature);

	if (!gbl_table_list_head) {
		gbl_table_list_head = new_info;
	} else {
		next = gbl_table_list_head;
		while (1) {
			if (ACPI_COMPARE_NAME(next->signature, signature)) {
				if (next->instance == instance) {
					found = TRUE;
				}
				if (next->instance >= next_instance) {
					next_instance = next->instance + 1;
				}
			}

			if (!next->next) {
				break;
			}
			next = next->next;
		}
		next->next = new_info;
	}

	if (found) {
		if (instance) {
			fprintf(stderr,
				"%4.4s: Warning unmatched table instance %d, expected %d\n",
				signature, instance, next_instance);
		}
		instance = next_instance;
	}

	new_info->instance = instance;
	gbl_table_count++;

	return (AE_OK);
}

ACPI_STATUS
AcpiOsTableOverride (
    ACPI_TABLE_HEADER       *ExistingTable,
    ACPI_TABLE_HEADER       **NewTable)
{
#ifdef ACPI_ASL_COMPILER
    ACPI_STATUS             Status;
    ACPI_PHYSICAL_ADDRESS   Address;
#endif

    if (!ExistingTable || !NewTable)
    {
        return (AE_BAD_PARAMETER);
    }

    *NewTable = NULL;


#ifdef ACPI_EXEC_APP

    /* Call back up to AcpiExec */

    AeTableOverride (ExistingTable, NewTable);
#endif


#ifdef ACPI_ASL_COMPILER

    /* Attempt to get the table from the registry */

    /* Construct a null-terminated string from table signature */

    ACPI_MOVE_NAME (TableName, ExistingTable->Signature);
    TableName[ACPI_NAME_SIZE] = 0;

    Status = AcpiOsGetTableByName (TableName, 0, NewTable, &Address);
    if (ACPI_SUCCESS (Status))
    {
        AcpiOsPrintf ("Table [%s] obtained from registry, %u bytes\n",
            TableName, (*NewTable)->Length);
    }
    else
    {
        AcpiOsPrintf ("Could not read table %s from registry (%s)\n",
            TableName, AcpiFormatException (Status));
    }
#endif

    return (AE_OK);
}

void acpi_ut_repair_name(char *name)
{
	u32 i;
	u8 found_bad_char = FALSE;
	u32 original_name;

	ACPI_FUNCTION_NAME(ut_repair_name);

	/*
	 * Special case for the root node. This can happen if we get an
	 * error during the execution of module-level code.
	 */
	if (ACPI_COMPARE_NAME(name, ACPI_ROOT_PATHNAME)) {
		return;
	}

	ACPI_MOVE_NAME(&original_name, name);

	/* Check each character in the name */

	for (i = 0; i < ACPI_NAME_SIZE; i++) {
		if (acpi_ut_valid_name_char(name[i], i)) {
			continue;
		}

		/*
		 * Replace a bad character with something printable, yet technically
		 * still invalid. This prevents any collisions with existing "good"
		 * names in the namespace.
		 */
		name[i] = '*';
		found_bad_char = TRUE;
	}

	if (found_bad_char) {

		/* Report warning only if in strict mode or debug mode */

		if (!acpi_gbl_enable_interpreter_slack) {
			ACPI_WARNING((AE_INFO,
				      "Invalid character(s) in name (0x%.8X), repaired: [%4.4s]",
				      original_name, name));
		} else {
			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
					  "Invalid character(s) in name (0x%.8X), repaired: [%4.4s]",
					  original_name, name));
		}
	}
}

static void
AeInitializeTableHeader (
    ACPI_TABLE_HEADER       *Header,
    char                    *Signature,
    UINT32                  Length)
{

    ACPI_MOVE_NAME (Header->Signature, Signature);
    Header->Length = Length;

    Header->OemRevision = 0x1001;
    ACPI_STRNCPY (Header->OemId, "Intel", ACPI_OEM_ID_SIZE);
    ACPI_STRNCPY (Header->OemTableId, "AcpiExec", ACPI_OEM_TABLE_ID_SIZE);
    ACPI_STRNCPY (Header->AslCompilerId, "INTL", ACPI_NAME_SIZE);
    Header->AslCompilerRevision = 0x20131218;
}

static void
UtAttachNameseg (
    ACPI_PARSE_OBJECT       *Op,
    char                    *Name)
{
    char                    *NameSeg;
    char                    PaddedNameSeg[4];


    if (!Name)
    {
        return;
    }

    /* Look for the last dot in the namepath */

    NameSeg = strrchr (Name, '.');
    if (NameSeg)
    {
        /* Found last dot, we have also found the final nameseg */

        NameSeg++;
        UtPadNameWithUnderscores (NameSeg, PaddedNameSeg);
    }
    else
    {
        /* No dots in the namepath, there is only a single nameseg. */
        /* Handle prefixes */

        while (ACPI_IS_ROOT_PREFIX (*Name) ||
               ACPI_IS_PARENT_PREFIX (*Name))
        {
            Name++;
        }

        /* Remaining string should be one single nameseg */

        UtPadNameWithUnderscores (Name, PaddedNameSeg);
    }

    ACPI_MOVE_NAME (Op->Asl.NameSeg, PaddedNameSeg);
}

static void
AeInitializeTableHeader (
    ACPI_TABLE_HEADER       *Header,
    char                    *Signature,
    UINT32                  Length)
{

    ACPI_MOVE_NAME (Header->Signature, Signature);
    Header->Length = Length;

    Header->OemRevision = 0x1001;
    strncpy (Header->OemId, "Intel", ACPI_OEM_ID_SIZE);
    strncpy (Header->OemTableId, "AcpiExec", ACPI_OEM_TABLE_ID_SIZE);
    strncpy (Header->AslCompilerId, "INTL", ACPI_NAME_SIZE);
    Header->AslCompilerRevision = ACPI_CA_VERSION;

    /* Set the checksum, must set to zero first */

    Header->Checksum = 0;
    Header->Checksum = (UINT8) -AcpiTbChecksum (
        (void *) Header, Header->Length);
}

ACPI_STATUS
AcpiNsHandleToName (
    ACPI_HANDLE             TargetHandle,
    ACPI_BUFFER             *Buffer)
{
    ACPI_STATUS             Status;
    ACPI_NAMESPACE_NODE     *Node;
    const char              *NodeName;


    ACPI_FUNCTION_TRACE_PTR (NsHandleToName, TargetHandle);


    Node = AcpiNsValidateHandle (TargetHandle);
    if (!Node)
    {
        return_ACPI_STATUS (AE_BAD_PARAMETER);
    }

    /* Validate/Allocate/Clear caller buffer */

    Status = AcpiUtInitializeBuffer (Buffer, ACPI_PATH_SEGMENT_LENGTH);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    /* Just copy the ACPI name from the Node and zero terminate it */

    NodeName = AcpiUtGetNodeName (Node);
    ACPI_MOVE_NAME (Buffer->Pointer, NodeName);
    ((char *) Buffer->Pointer) [ACPI_NAME_SIZE] = 0;

    ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "%4.4s\n", (char *) Buffer->Pointer));
    return_ACPI_STATUS (AE_OK);
}

int
ApWriteToBinaryFile (
    ACPI_TABLE_HEADER       *Table,
    UINT32                  Instance)
{
    char                    Filename[ACPI_NAME_SIZE + 16];
    char                    InstanceStr [16];
    ACPI_FILE               File;
    size_t                  Actual;
    UINT32                  TableLength;


    /* Obtain table length */

    TableLength = ApGetTableLength (Table);

    /* Construct lower-case filename from the table local signature */

    if (ACPI_VALIDATE_RSDP_SIG (Table->Signature))
    {
        ACPI_MOVE_NAME (Filename, ACPI_RSDP_NAME);
    }
    else
    {
        ACPI_MOVE_NAME (Filename, Table->Signature);
    }
    Filename[0] = (char) ACPI_TOLOWER (Filename[0]);
    Filename[1] = (char) ACPI_TOLOWER (Filename[1]);
    Filename[2] = (char) ACPI_TOLOWER (Filename[2]);
    Filename[3] = (char) ACPI_TOLOWER (Filename[3]);
    Filename[ACPI_NAME_SIZE] = 0;

    /* Handle multiple SSDTs - create different filenames for each */

    if (Instance > 0)
    {
        AcpiUtSnprintf (InstanceStr, sizeof (InstanceStr), "%u", Instance);
        ACPI_STRCAT (Filename, InstanceStr);
    }

    ACPI_STRCAT (Filename, ACPI_TABLE_FILE_SUFFIX);

    if (Gbl_VerboseMode)
    {
        AcpiLogError (
            "Writing [%4.4s] to binary file: %s 0x%X (%u) bytes\n",
            Table->Signature, Filename, Table->Length, Table->Length);
    }

    /* Open the file and dump the entire table in binary mode */

    File = AcpiOsOpenFile (Filename,
        ACPI_FILE_WRITING | ACPI_FILE_BINARY);
    if (!File)
    {
        AcpiLogError ("Could not open output file: %s\n", Filename);
        return (-1);
    }

    Actual = AcpiOsWriteFile (File, Table, 1, TableLength);
    if (Actual != TableLength)
    {
        AcpiLogError ("Error writing binary output file: %s\n", Filename);
        AcpiOsCloseFile (File);
        return (-1);
    }

    AcpiOsCloseFile (File);
    return (0);
}

ACPI_STATUS
AcpiTbFindTable (
    char                    *Signature,
    char                    *OemId,
    char                    *OemTableId,
    UINT32                  *TableIndex)
{
    UINT32                  i;
    ACPI_STATUS             Status;
    ACPI_TABLE_HEADER       Header;


    ACPI_FUNCTION_TRACE (TbFindTable);


    /* Normalize the input strings */

    ACPI_MEMSET (&Header, 0, sizeof (ACPI_TABLE_HEADER));
    ACPI_MOVE_NAME (Header.Signature, Signature);
    ACPI_STRNCPY (Header.OemId, OemId, ACPI_OEM_ID_SIZE);
    ACPI_STRNCPY (Header.OemTableId, OemTableId, ACPI_OEM_TABLE_ID_SIZE);

    /* Search for the table */

    for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; ++i)
    {
        if (ACPI_MEMCMP (&(AcpiGbl_RootTableList.Tables[i].Signature),
                            Header.Signature, ACPI_NAME_SIZE))
        {
            /* Not the requested table */

            continue;
        }

        /* Table with matching signature has been found */

        if (!AcpiGbl_RootTableList.Tables[i].Pointer)
        {
            /* Table is not currently mapped, map it */

            Status = AcpiTbVerifyTable (&AcpiGbl_RootTableList.Tables[i]);
            if (ACPI_FAILURE (Status))
            {
                return_ACPI_STATUS (Status);
            }

            if (!AcpiGbl_RootTableList.Tables[i].Pointer)
            {
                continue;
            }
        }

        /* Check for table match on all IDs */

        if (!ACPI_MEMCMP (AcpiGbl_RootTableList.Tables[i].Pointer->Signature,
                            Header.Signature, ACPI_NAME_SIZE) &&
            (!OemId[0] ||
             !ACPI_MEMCMP (AcpiGbl_RootTableList.Tables[i].Pointer->OemId,
                             Header.OemId, ACPI_OEM_ID_SIZE)) &&
            (!OemTableId[0] ||
             !ACPI_MEMCMP (AcpiGbl_RootTableList.Tables[i].Pointer->OemTableId,
                             Header.OemTableId, ACPI_OEM_TABLE_ID_SIZE)))
        {
            *TableIndex = i;

            ACPI_DEBUG_PRINT ((ACPI_DB_TABLES, "Found table [%4.4s]\n",
                Header.Signature));
            return_ACPI_STATUS (AE_OK);
        }
    }

    return_ACPI_STATUS (AE_NOT_FOUND);
}

int ap_write_to_binary_file(struct acpi_table_header *table, u32 instance)
{
	char filename[ACPI_NAME_SIZE + 16];
	char instance_str[16];
	ACPI_FILE file;
	size_t actual;
	u32 table_length;

	/* Obtain table length */

	table_length = ap_get_table_length(table);

	/* Construct lower-case filename from the table local signature */

	if (ACPI_VALIDATE_RSDP_SIG(table->signature)) {
		ACPI_MOVE_NAME(filename, ACPI_RSDP_NAME);
	} else {
		ACPI_MOVE_NAME(filename, table->signature);
	}
	filename[0] = (char)ACPI_TOLOWER(filename[0]);
	filename[1] = (char)ACPI_TOLOWER(filename[1]);
	filename[2] = (char)ACPI_TOLOWER(filename[2]);
	filename[3] = (char)ACPI_TOLOWER(filename[3]);
	filename[ACPI_NAME_SIZE] = 0;

	/* Handle multiple SSDts - create different filenames for each */

	if (instance > 0) {
		acpi_ut_snprintf(instance_str, sizeof(instance_str), "%u",
				 instance);
		ACPI_STRCAT(filename, instance_str);
	}

	ACPI_STRCAT(filename, ACPI_TABLE_FILE_SUFFIX);

	if (gbl_verbose_mode) {
		acpi_log_error
		    ("Writing [%4.4s] to binary file: %s 0x%X (%u) bytes\n",
		     table->signature, filename, table->length, table->length);
	}

	/* Open the file and dump the entire table in binary mode */

	file = acpi_os_open_file(filename,
				 ACPI_FILE_WRITING | ACPI_FILE_BINARY);
	if (!file) {
		acpi_log_error("Could not open output file: %s\n", filename);
		return (-1);
	}

	actual = acpi_os_write_file(file, table, 1, table_length);
	if (actual != table_length) {
		acpi_log_error("Error writing binary output file: %s\n",
			       filename);
		acpi_os_close_file(file);
		return (-1);
	}

	acpi_os_close_file(file);
	return (0);
}

static ACPI_STATUS
OslAddTablesToList(
    void)
{
    ACPI_PHYSICAL_ADDRESS   TableAddress;
    OSL_TABLE_INFO          *Info = NULL;
    OSL_TABLE_INFO          *NewInfo;
    ACPI_TABLE_HEADER       *Table;
    UINT8                   Instance;
    UINT8                   NumberOfTables;
    int                     i;


    /* Initialize the table list on first invocation */

    if (Gbl_TableListInitialized)
    {
        return (AE_OK);
    }

    /* Add mandatory tables to global table list first */

    for (i = 0; i < 4; i++)
    {
        NewInfo = calloc (1, sizeof (*NewInfo));
        if (!NewInfo)
        {
            return (AE_NO_MEMORY);
        }

        switch (i) {
        case 0:

            Gbl_TableListHead = Info = NewInfo;
            continue;

        case 1:

            ACPI_MOVE_NAME (NewInfo->Signature,
                Gbl_Revision ? ACPI_SIG_XSDT : ACPI_SIG_RSDT);
            break;

        case 2:

            ACPI_MOVE_NAME (NewInfo->Signature, ACPI_SIG_FACS);
            break;

        default:

            ACPI_MOVE_NAME (NewInfo->Signature, ACPI_SIG_DSDT);

        }

        Info->Next = NewInfo;
        Info = NewInfo;
        Gbl_TableListHead->Instance++;
    }

    /* Add normal tables from RSDT/XSDT to global list */

    if (Gbl_Revision)
    {
        NumberOfTables =
            (Gbl_Xsdt->Header.Length - sizeof (Gbl_Xsdt->Header))
            / sizeof (Gbl_Xsdt->TableOffsetEntry[0]);
    }
    else
    {
        NumberOfTables =
            (Gbl_Rsdt->Header.Length - sizeof (Gbl_Rsdt->Header))
            / sizeof (Gbl_Rsdt->TableOffsetEntry[0]);
    }

    for (i = 0; i < NumberOfTables; i++)
    {
        if (Gbl_Revision)
        {
            TableAddress = Gbl_Xsdt->TableOffsetEntry[i];
        }
        else
        {
            TableAddress = Gbl_Rsdt->TableOffsetEntry[i];
        }

        Table = AcpiOsMapMemory (TableAddress, sizeof (*Table));
        if (!Table)
        {
            return (AE_BAD_ADDRESS);
        }

        Instance = 0;
        NewInfo = Gbl_TableListHead;
        while (NewInfo->Next != NULL)
        {
            NewInfo = NewInfo->Next;
            if (ACPI_COMPARE_NAME (Table->Signature, NewInfo->Signature))
            {
                Instance++;
            }
        }
//.........这里部分代码省略.........

ACPI_STATUS
AeBuildLocalTables (
    UINT32                  TableCount,
    AE_TABLE_DESC           *TableList)
{
    ACPI_PHYSICAL_ADDRESS   DsdtAddress = 0;
    UINT32                  XsdtSize;
    AE_TABLE_DESC           *NextTable;
    UINT32                  NextIndex;
    ACPI_TABLE_FADT         *ExternalFadt = NULL;


    /*
     * Update the table count. For DSDT, it is not put into the XSDT. For
     * FADT, this is already accounted for since we usually install a
     * local FADT.
     */
    NextTable = TableList;
    while (NextTable)
    {
        if (ACPI_COMPARE_NAME (NextTable->Table->Signature, ACPI_SIG_DSDT) ||
            ACPI_COMPARE_NAME (NextTable->Table->Signature, ACPI_SIG_FADT))
        {
            TableCount--;
        }
        NextTable = NextTable->Next;
    }

    XsdtSize = BASE_XSDT_SIZE + (TableCount * sizeof (UINT64));

    /* Build an XSDT */

    LocalXSDT = AcpiOsAllocate (XsdtSize);
    if (!LocalXSDT)
    {
        return (AE_NO_MEMORY);
    }

    ACPI_MEMSET (LocalXSDT, 0, XsdtSize);
    ACPI_MOVE_NAME (LocalXSDT->Header.Signature, ACPI_SIG_XSDT);
    LocalXSDT->Header.Length = XsdtSize;
    LocalXSDT->Header.Revision = 1;

    LocalXSDT->TableOffsetEntry[0] = ACPI_PTR_TO_PHYSADDR (&LocalFADT);

    /*
     * Install the user tables. The DSDT must be installed in the FADT.
     * All other tables are installed directly into the XSDT.
     */
    NextIndex = BASE_XSDT_TABLES;
    NextTable = TableList;
    while (NextTable)
    {
        /*
         * Incoming DSDT or FADT are special cases. All other tables are
         * just immediately installed into the XSDT.
         */
        if (ACPI_COMPARE_NAME (NextTable->Table->Signature, ACPI_SIG_DSDT))
        {
            if (DsdtAddress)
            {
                printf ("Already found a DSDT, only one allowed\n");
                return (AE_ALREADY_EXISTS);
            }

            /* The incoming user table is a DSDT */

            DsdtAddress = ACPI_PTR_TO_PHYSADDR (NextTable->Table);
        }
        else if (ACPI_COMPARE_NAME (NextTable->Table->Signature, ACPI_SIG_FADT))
        {
            ExternalFadt = ACPI_CAST_PTR (ACPI_TABLE_FADT, NextTable->Table);
            LocalXSDT->TableOffsetEntry[2] = ACPI_PTR_TO_PHYSADDR (NextTable->Table);
        }
        else
        {
            /* Install the table in the XSDT */

            LocalXSDT->TableOffsetEntry[NextIndex] = ACPI_PTR_TO_PHYSADDR (NextTable->Table);
            NextIndex++;
        }

        NextTable = NextTable->Next;
    }

    /* Build an RSDP */

    ACPI_MEMSET (&LocalRSDP, 0, sizeof (ACPI_TABLE_RSDP));
    ACPI_MAKE_RSDP_SIG (LocalRSDP.Signature);
    ACPI_MEMCPY (LocalRSDP.OemId, "I_TEST", 6);
    LocalRSDP.Revision = 2;
    LocalRSDP.XsdtPhysicalAddress = ACPI_PTR_TO_PHYSADDR (LocalXSDT);
    LocalRSDP.Length = sizeof (ACPI_TABLE_XSDT);

    /* Set checksums for both XSDT and RSDP */

    LocalXSDT->Header.Checksum = (UINT8) -AcpiTbChecksum (
        (void *) LocalXSDT, LocalXSDT->Header.Length);
    LocalRSDP.Checksum = (UINT8) -AcpiTbChecksum (
        (void *) &LocalRSDP, ACPI_RSDP_CHECKSUM_LENGTH);
//.........这里部分代码省略.........