components/debugger/dbfileio.c

/*******************************************************************************
 *
 * Module Name: dbfileio - Debugger file I/O commands.  These can't usually
 *              be used when running the debugger in Ring 0 (Kernel mode)
 *              $Revision: 47 $
 *
 ******************************************************************************/

/******************************************************************************
 *
 * 1. Copyright Notice
 *
 * Some or all of this work - Copyright (c) 1999, 2000, 2001, Intel Corp.
 * All rights reserved.
 *
 * 2. License
 *
 * 2.1. This is your license from Intel Corp. under its intellectual property
 * rights.  You may have additional license terms from the party that provided
 * you this software, covering your right to use that party's intellectual
 * property rights.
 *
 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
 * copy of the source code appearing in this file ("Covered Code") an
 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
 * base code distributed originally by Intel ("Original Intel Code") to copy,
 * make derivatives, distribute, use and display any portion of the Covered
 * Code in any form, with the right to sublicense such rights; and
 *
 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
 * license (with the right to sublicense), under only those claims of Intel
 * patents that are infringed by the Original Intel Code, to make, use, sell,
 * offer to sell, and import the Covered Code and derivative works thereof
 * solely to the minimum extent necessary to exercise the above copyright
 * license, and in no event shall the patent license extend to any additions
 * to or modifications of the Original Intel Code.  No other license or right
 * is granted directly or by implication, estoppel or otherwise;
 *
 * The above copyright and patent license is granted only if the following
 * conditions are met:
 *
 * 3. Conditions
 *
 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
 * Redistribution of source code of any substantial portion of the Covered
 * Code or modification with rights to further distribute source must include
 * the above Copyright Notice, the above License, this list of Conditions,
 * and the following Disclaimer and Export Compliance provision.  In addition,
 * Licensee must cause all Covered Code to which Licensee contributes to
 * contain a file documenting the changes Licensee made to create that Covered
 * Code and the date of any change.  Licensee must include in that file the
 * documentation of any changes made by any predecessor Licensee.  Licensee
 * must include a prominent statement that the modification is derived,
 * directly or indirectly, from Original Intel Code.
 *
 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
 * Redistribution of source code of any substantial portion of the Covered
 * Code or modification without rights to further distribute source must
 * include the following Disclaimer and Export Compliance provision in the
 * documentation and/or other materials provided with distribution.  In
 * addition, Licensee may not authorize further sublicense of source of any
 * portion of the Covered Code, and must include terms to the effect that the
 * license from Licensee to its licensee is limited to the intellectual
 * property embodied in the software Licensee provides to its licensee, and
 * not to intellectual property embodied in modifications its licensee may
 * make.
 *
 * 3.3. Redistribution of Executable. Redistribution in executable form of any
 * substantial portion of the Covered Code or modification must reproduce the
 * above Copyright Notice, and the following Disclaimer and Export Compliance
 * provision in the documentation and/or other materials provided with the
 * distribution.
 *
 * 3.4. Intel retains all right, title, and interest in and to the Original
 * Intel Code.
 *
 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
 * Intel shall be used in advertising or otherwise to promote the sale, use or
 * other dealings in products derived from or relating to the Covered Code
 * without prior written authorization from Intel.
 *
 * 4. Disclaimer and Export Compliance
 *
 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
 * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
 * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
 * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
 * PARTICULAR PURPOSE.
 *
 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
 * LIMITED REMEDY.
 *
 * 4.3. Licensee shall not export, either directly or indirectly, any of this
 * software or system incorporating such software without first obtaining any
 * required license or other approval from the U. S. Department of Commerce or
 * any other agency or department of the United States Government.  In the
 * event Licensee exports any such software from the United States or
 * re-exports any such software from a foreign destination, Licensee shall
 * ensure that the distribution and export/re-export of the software is in
 * compliance with all laws, regulations, orders, or other restrictions of the
 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
 * any of its subsidiaries will export/re-export any technical data, process,
 * software, or service, directly or indirectly, to any country for which the
 * United States government or any agency thereof requires an export license,
 * other governmental approval, or letter of assurance, without first obtaining
 * such license, approval or letter.
 *
 *****************************************************************************/


#include "acpi.h"
#include "acdebug.h"
#include "acnamesp.h"
#include "acparser.h"
#include "acevents.h"
#include "actables.h"

#ifdef ENABLE_DEBUGGER

#define _COMPONENT          ACPI_DEBUGGER
        MODULE_NAME         ("dbfileio")


#ifdef ACPI_APPLICATION
#include <stdio.h>
FILE                        *AcpiGbl_DebugFile = NULL;
#endif


/*
 * NOTE: this is here for lack of a better place.  It is used in all
 *  flavors of the debugger, need LCD file
 */

/*******************************************************************************
 *
 * FUNCTION:    AcpiDbMatchArgument
 *
 * PARAMETERS:  UserArgument            - User command line
 *              Arguments               - Array of commands to match against
 *
 * RETURN:      Index into command array or ACPI_TYPE_NOT_FOUND if not found
 *
 * DESCRIPTION: Search command array for a command match
 *
 ******************************************************************************/

ACPI_OBJECT_TYPE8
AcpiDbMatchArgument (
    NATIVE_CHAR             *UserArgument,
    ARGUMENT_INFO           *Arguments)
{
    UINT32                  i;


    if (!UserArgument || UserArgument[0] == 0)
    {
        return (ACPI_TYPE_NOT_FOUND);
    }

    for (i = 0; Arguments[i].Name; i++)
    {
        if (STRSTR (Arguments[i].Name, UserArgument) == Arguments[i].Name)
        {
            return ((ACPI_OBJECT_TYPE8) i);
        }
    }

    /* Argument not recognized */

    return (ACPI_TYPE_NOT_FOUND);
}


/*******************************************************************************
 *
 * FUNCTION:    AcpiDbCloseDebugFile
 *
 * PARAMETERS:  None
 *
 * RETURN:      Status
 *
 * DESCRIPTION: If open, close the current debug output file
 *
 ******************************************************************************/

void
AcpiDbCloseDebugFile (
    void)
{

#ifdef ACPI_APPLICATION

    if (AcpiGbl_DebugFile)
    {
       fclose (AcpiGbl_DebugFile);
       AcpiGbl_DebugFile = NULL;
       AcpiGbl_DbOutputToFile = FALSE;
       AcpiOsPrintf ("Debug output file %s closed\n", AcpiGbl_DbDebugFilename);
    }
#endif

}


/*******************************************************************************
 *
 * FUNCTION:    AcpiDbOpenDebugFile
 *
 * PARAMETERS:  Name                - Filename to open
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Open a file where debug output will be directed.
 *
 ******************************************************************************/

void
AcpiDbOpenDebugFile (
    NATIVE_CHAR             *Name)
{

#ifdef ACPI_APPLICATION

    AcpiDbCloseDebugFile ();
    AcpiGbl_DebugFile = fopen (Name, "w+");
    if (AcpiGbl_DebugFile)
    {
        AcpiOsPrintf ("Debug output file %s opened\n", Name);
        STRCPY (AcpiGbl_DbDebugFilename, Name);
        AcpiGbl_DbOutputToFile = TRUE;
    }
    else
    {
        AcpiOsPrintf ("Could not open debug file %s\n", Name);
    }

#endif
}


#ifdef ACPI_APPLICATION
/*******************************************************************************
 *
 * FUNCTION:    AcpiDbLoadTable
 *
 * PARAMETERS:  fp              - File that contains table
 *              TablePtr        - Return value, buffer with table
 *              TableLenght     - Return value, length of table
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Load the DSDT from the file pointer
 *
 ******************************************************************************/

ACPI_STATUS
AcpiDbLoadTable(
    FILE                    *fp,
    ACPI_TABLE_HEADER       **TablePtr,
    UINT32                  *TableLength)
{
    ACPI_TABLE_HEADER       TableHeader;
    UINT8                   *AmlPtr;
    UINT32                  AmlLength;
    UINT32                  Actual;
    ACPI_STATUS             Status;


    /* Read the table header */

    if (fread (&TableHeader, 1, sizeof (TableHeader), fp) != sizeof (ACPI_TABLE_HEADER))
    {
        AcpiOsPrintf ("Couldn't read the table header\n");
        return (AE_BAD_SIGNATURE);
    }


    /* Validate the table header/length */

    Status = AcpiTbValidateTableHeader (&TableHeader);
    if ((ACPI_FAILURE (Status)) ||
        (TableHeader.Length > 524288))  /* 1/2 Mbyte should be enough */
    {
        AcpiOsPrintf ("Table header is invalid!\n");
        return (AE_ERROR);
    }


    /* We only support a limited number of table types */

    if (STRNCMP ((char *) TableHeader.Signature, DSDT_SIG, 4) &&
        STRNCMP ((char *) TableHeader.Signature, PSDT_SIG, 4) &&
        STRNCMP ((char *) TableHeader.Signature, SSDT_SIG, 4))
    {
        AcpiOsPrintf ("Table signature is invalid\n");
        DUMP_BUFFER (&TableHeader, sizeof (ACPI_TABLE_HEADER));
        return (AE_ERROR);
    }

    /* Allocate a buffer for the table */

    *TableLength = TableHeader.Length;
    *TablePtr = ACPI_MEM_ALLOCATE ((size_t) *TableLength);
    if (!*TablePtr)
    {
        AcpiOsPrintf ("Could not allocate memory for ACPI table %4.4s (size=%X)\n",
                    TableHeader.Signature, TableHeader.Length);
        return (AE_NO_MEMORY);
    }


    AmlPtr      = (UINT8 *) *TablePtr + sizeof (TableHeader);
    AmlLength   = *TableLength - sizeof (TableHeader);

    /* Copy the header to the buffer */

    MEMCPY (*TablePtr, &TableHeader, sizeof (TableHeader));

    /* Get the rest of the table */

    Actual = fread (AmlPtr, 1, (size_t) AmlLength, fp);
    if (Actual == AmlLength)
    {
        return (AE_OK);
    }

    if (Actual > 0)
    {
        AcpiOsPrintf ("Warning - reading table, asked for %X got %X\n", AmlLength, Actual);
       return (AE_OK);
    }


    AcpiOsPrintf ("Error - could not read the table file\n");
    ACPI_MEM_FREE (*TablePtr);
    *TablePtr = NULL;
    *TableLength = 0;

    return (AE_ERROR);
}
#endif


/*******************************************************************************
 *
 * FUNCTION:    AeLocalLoadTable
 *
 * PARAMETERS:  TablePtr        - pointer to a buffer containing the entire
 *                                table to be loaded
 *
 * RETURN:      Status
 *
 * DESCRIPTION: This function is called to load a table from the caller's
 *              buffer.  The buffer must contain an entire ACPI Table including
 *              a valid header.  The header fields will be verified, and if it
 *              is determined that the table is invalid, the call will fail.
 *
 *              If the call fails an appropriate status will be returned.
 *
 ******************************************************************************/

ACPI_STATUS
AeLocalLoadTable (
    ACPI_TABLE_HEADER       *TablePtr)
{
    ACPI_STATUS             Status;
    ACPI_TABLE_DESC         TableInfo;


    FUNCTION_TRACE ("AeLocalLoadTable");

    if (!TablePtr)
    {
        return_ACPI_STATUS (AE_BAD_PARAMETER);
    }

    /* Install the new table into the local data structures */

    TableInfo.Pointer = TablePtr;

    Status = AcpiTbInstallTable (NULL, &TableInfo);
    if (ACPI_FAILURE (Status))
    {
        /* Free table allocated by AcpiTbGetTable */

        AcpiTbDeleteSingleTable (&TableInfo);
        return_ACPI_STATUS (Status);
    }


#ifndef PARSER_ONLY
    Status = AcpiNsLoadTable (TableInfo.InstalledDesc, AcpiGbl_RootNode);
    if (ACPI_FAILURE (Status))
    {
        /* Uninstall table and free the buffer */

        AcpiTbUninstallTable (TableInfo.InstalledDesc);
        return_ACPI_STATUS (Status);
    }
#endif

    return_ACPI_STATUS (Status);
}


/*******************************************************************************
 *
 * FUNCTION:    AcpiDbLoadAcpiTable
 *
 * PARAMETERS:  Filname         - File where table is located
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Load an ACPI table from a file
 *
 ******************************************************************************/

ACPI_STATUS
AcpiDbLoadAcpiTable (
    NATIVE_CHAR             *Filename)
{
#ifdef ACPI_APPLICATION
    FILE                    *fp;
    ACPI_STATUS             Status;
    ACPI_TABLE_HEADER       *TablePtr;
    UINT32                  TableLength;


    /* Open the file */

    fp = fopen (Filename, "rb");
    if (!fp)
    {
        AcpiOsPrintf ("Could not open file %s\n", Filename);
        return (AE_ERROR);
    }


    /* Get the entire file */

    AcpiOsPrintf ("Loading Acpi table from file %s\n", Filename);
    Status = AcpiDbLoadTable (fp, &TablePtr, &TableLength);
    fclose(fp);

    if (ACPI_FAILURE (Status))
    {
        AcpiOsPrintf ("Couldn't get table from the file\n");
        return (Status);
    }


    /* Attempt to recognize and install the table */
    Status = AeLocalLoadTable (TablePtr);

    if (ACPI_FAILURE (Status))
    {
        if (Status == AE_EXIST)
        {
            AcpiOsPrintf ("Table %4.4s is already installed\n",
                            &TablePtr->Signature);
        }

        else
        {
            AcpiOsPrintf ("Could not install table, %s\n",
                            AcpiFormatException (Status));
        }

        ACPI_MEM_FREE (TablePtr);
        return (Status);
    }

    AcpiOsPrintf ("%4.4s at %p successfully installed and loaded\n",
                                &TablePtr->Signature, TablePtr);

    AcpiGbl_AcpiHardwarePresent = FALSE;

#endif  /* ACPI_APPLICATION */
    return (AE_OK);
}


#endif  /* ENABLE_DEBUGGER */