/******************************************************************************
*
* Module Name: dbhistry - debugger HISTORY command
*
*****************************************************************************/
/*
* Copyright (C) 2000 - 2011, 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.
*/
#include <contrib/dev/acpica/include/acpi.h>
#include <contrib/dev/acpica/include/accommon.h>
#include <contrib/dev/acpica/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)
{
UINT32 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)
{
UINT32 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: %u\n", HistoryIndex);
return (NULL);
}
#endif /* ACPI_DEBUGGER */
