freebsd-dev/source/components/utilities/utbuffer.c

/******************************************************************************
 *
 * Module Name: utbuffer - Buffer dump routines
 *
 *****************************************************************************/

/*
 * Copyright (C) 2000 - 2014, Intel Corp.
 * 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.
 */

#define __UTBUFFER_C__

#include "acpi.h"
#include "accommon.h"

#define _COMPONENT          ACPI_UTILITIES
        ACPI_MODULE_NAME    ("utbuffer")


/*******************************************************************************
 *
 * FUNCTION:    AcpiUtDumpBuffer
 *
 * PARAMETERS:  Buffer              - Buffer to dump
 *              Count               - Amount to dump, in bytes
 *              Display             - BYTE, WORD, DWORD, or QWORD display:
 *                                      DB_BYTE_DISPLAY
 *                                      DB_WORD_DISPLAY
 *                                      DB_DWORD_DISPLAY
 *                                      DB_QWORD_DISPLAY
 *              BaseOffset          - Beginning buffer offset (display only)
 *
 * RETURN:      None
 *
 * DESCRIPTION: Generic dump buffer in both hex and ascii.
 *
 ******************************************************************************/

void
AcpiUtDumpBuffer (
    UINT8                   *Buffer,
    UINT32                  Count,
    UINT32                  Display,
    UINT32                  BaseOffset)
{
    UINT32                  i = 0;
    UINT32                  j;
    UINT32                  Temp32;
    UINT8                   BufChar;


    if (!Buffer)
    {
        AcpiOsPrintf ("Null Buffer Pointer in DumpBuffer!\n");
        return;
    }

    if ((Count < 4) || (Count & 0x01))
    {
        Display = DB_BYTE_DISPLAY;
    }

    /* Nasty little dump buffer routine! */

    while (i < Count)
    {
        /* Print current offset */

        AcpiOsPrintf ("%6.4X: ", (BaseOffset + i));

        /* Print 16 hex chars */

        for (j = 0; j < 16;)
        {
            if (i + j >= Count)
            {
                /* Dump fill spaces */

                AcpiOsPrintf ("%*s", ((Display * 2) + 1), " ");
                j += Display;
                continue;
            }

            switch (Display)
            {
            case DB_BYTE_DISPLAY:
            default:    /* Default is BYTE display */

                AcpiOsPrintf ("%02X ", Buffer[(ACPI_SIZE) i + j]);
                break;

            case DB_WORD_DISPLAY:

                ACPI_MOVE_16_TO_32 (&Temp32, &Buffer[(ACPI_SIZE) i + j]);
                AcpiOsPrintf ("%04X ", Temp32);
                break;

            case DB_DWORD_DISPLAY:

                ACPI_MOVE_32_TO_32 (&Temp32, &Buffer[(ACPI_SIZE) i + j]);
                AcpiOsPrintf ("%08X ", Temp32);
                break;

            case DB_QWORD_DISPLAY:

                ACPI_MOVE_32_TO_32 (&Temp32, &Buffer[(ACPI_SIZE) i + j]);
                AcpiOsPrintf ("%08X", Temp32);

                ACPI_MOVE_32_TO_32 (&Temp32, &Buffer[(ACPI_SIZE) i + j + 4]);
                AcpiOsPrintf ("%08X ", Temp32);
                break;
            }

            j += Display;
        }

        /*
         * Print the ASCII equivalent characters but watch out for the bad
         * unprintable ones (printable chars are 0x20 through 0x7E)
         */
        AcpiOsPrintf (" ");
        for (j = 0; j < 16; j++)
        {
            if (i + j >= Count)
            {
                AcpiOsPrintf ("\n");
                return;
            }

            BufChar = Buffer[(ACPI_SIZE) i + j];
            if (ACPI_IS_PRINT (BufChar))
            {
                AcpiOsPrintf ("%c", BufChar);
            }
            else
            {
                AcpiOsPrintf (".");
            }
        }

        /* Done with that line. */

        AcpiOsPrintf ("\n");
        i += 16;
    }

    return;
}


/*******************************************************************************
 *
 * FUNCTION:    AcpiUtDebugDumpBuffer
 *
 * PARAMETERS:  Buffer              - Buffer to dump
 *              Count               - Amount to dump, in bytes
 *              Display             - BYTE, WORD, DWORD, or QWORD display:
 *                                      DB_BYTE_DISPLAY
 *                                      DB_WORD_DISPLAY
 *                                      DB_DWORD_DISPLAY
 *                                      DB_QWORD_DISPLAY
 *              ComponentID         - Caller's component ID
 *
 * RETURN:      None
 *
 * DESCRIPTION: Generic dump buffer in both hex and ascii.
 *
 ******************************************************************************/

void
AcpiUtDebugDumpBuffer (
    UINT8                   *Buffer,
    UINT32                  Count,
    UINT32                  Display,
    UINT32                  ComponentId)
{

    /* Only dump the buffer if tracing is enabled */

    if (!((ACPI_LV_TABLES & AcpiDbgLevel) &&
        (ComponentId & AcpiDbgLayer)))
    {
        return;
    }

    AcpiUtDumpBuffer (Buffer, Count, Display, 0);
}