NetBSD-5.0.2/sys/dist/acpica/dbhistry.c
/******************************************************************************
*
* Module Name: dbhistry - debugger HISTORY command
* $Revision: 1.4 $
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2008, 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"
#ifdef ACPI_DEBUGGER
#define _COMPONENT ACPI_CA_DEBUGGER
ACPI_MODULE_NAME ("dbhistry")
#define HI_NO_HISTORY 0
#define HI_RECORD_HISTORY 1
#define HISTORY_SIZE 20
typedef struct HistoryInfo
{
char Command[80];
UINT32 CmdNum;
} HISTORY_INFO;
static HISTORY_INFO AcpiGbl_HistoryBuffer[HISTORY_SIZE];
static UINT16 AcpiGbl_LoHistory = 0;
static UINT16 AcpiGbl_NumHistory = 0;
static UINT16 AcpiGbl_NextHistoryIndex = 0;
static UINT32 AcpiGbl_NextCmdNum = 1;
/*******************************************************************************
*
* FUNCTION: AcpiDbAddToHistory
*
* PARAMETERS: CommandLine - Command to add
*
* RETURN: None
*
* DESCRIPTION: Add a command line to the history buffer.
*
******************************************************************************/
void
AcpiDbAddToHistory (
char *CommandLine)
{
/* Put command into the next available slot */
ACPI_STRCPY (AcpiGbl_HistoryBuffer[AcpiGbl_NextHistoryIndex].Command,
CommandLine);
AcpiGbl_HistoryBuffer[AcpiGbl_NextHistoryIndex].CmdNum = AcpiGbl_NextCmdNum;
/* Adjust indexes */
if ((AcpiGbl_NumHistory == HISTORY_SIZE) &&
(AcpiGbl_NextHistoryIndex == AcpiGbl_LoHistory))
{
AcpiGbl_LoHistory++;
if (AcpiGbl_LoHistory >= HISTORY_SIZE)
{
AcpiGbl_LoHistory = 0;
}
}
AcpiGbl_NextHistoryIndex++;
if (AcpiGbl_NextHistoryIndex >= HISTORY_SIZE)
{
AcpiGbl_NextHistoryIndex = 0;
}
AcpiGbl_NextCmdNum++;
if (AcpiGbl_NumHistory < HISTORY_SIZE)
{
AcpiGbl_NumHistory++;
}
}
/*******************************************************************************
*
* FUNCTION: AcpiDbDisplayHistory
*
* PARAMETERS: None
*
* RETURN: None
*
* DESCRIPTION: Display the contents of the history buffer
*
******************************************************************************/
void
AcpiDbDisplayHistory (
void)
{
ACPI_NATIVE_UINT i;
UINT16 HistoryIndex;
HistoryIndex = AcpiGbl_LoHistory;
/* Dump entire history buffer */
for (i = 0; i < AcpiGbl_NumHistory; i++)
{
AcpiOsPrintf ("%ld %s\n", AcpiGbl_HistoryBuffer[HistoryIndex].CmdNum,
AcpiGbl_HistoryBuffer[HistoryIndex].Command);
HistoryIndex++;
if (HistoryIndex >= HISTORY_SIZE)
{
HistoryIndex = 0;
}
}
}
/*******************************************************************************
*
* FUNCTION: AcpiDbGetFromHistory
*
* PARAMETERS: CommandNumArg - String containing the number of the
* command to be retrieved
*
* RETURN: Pointer to the retrieved command. Null on error.
*
* DESCRIPTION: Get a command from the history buffer
*
******************************************************************************/
char *
AcpiDbGetFromHistory (
char *CommandNumArg)
{
ACPI_NATIVE_UINT i;
UINT16 HistoryIndex;
UINT32 CmdNum;
if (CommandNumArg == NULL)
{
CmdNum = AcpiGbl_NextCmdNum - 1;
}
else
{
CmdNum = ACPI_STRTOUL (CommandNumArg, NULL, 0);
}
/* Search history buffer */
HistoryIndex = AcpiGbl_LoHistory;
for (i = 0; i < AcpiGbl_NumHistory; i++)
{
if (AcpiGbl_HistoryBuffer[HistoryIndex].CmdNum == CmdNum)
{
/* Found the commnad, return it */
return (AcpiGbl_HistoryBuffer[HistoryIndex].Command);
}
HistoryIndex++;
if (HistoryIndex >= HISTORY_SIZE)
{
HistoryIndex = 0;
}
}
AcpiOsPrintf ("Invalid history number: %d\n", HistoryIndex);
return (NULL);
}
#endif /* ACPI_DEBUGGER */