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/******************************************************************************
*
* Module Name: dbhistry - debugger HISTORY command
* $Revision: 19 $
*
*****************************************************************************/
/*
* Copyright (C) 2000, 2001 R. Byron Moore
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "acpi.h"
#include "acparser.h"
#include "acdispat.h"
#include "amlcode.h"
#include "acnamesp.h"
#include "acparser.h"
#include "acevents.h"
#include "acinterp.h"
#include "acdebug.h"
#include "actables.h"
#ifdef ENABLE_DEBUGGER
#define _COMPONENT ACPI_DEBUGGER
MODULE_NAME ("dbhistry")
#define HI_NO_HISTORY 0
#define HI_RECORD_HISTORY 1
#define HISTORY_SIZE 20
typedef struct history_info
{
NATIVE_CHAR command[80];
u32 cmd_num;
} HISTORY_INFO;
HISTORY_INFO acpi_gbl_history_buffer[HISTORY_SIZE];
u16 acpi_gbl_lo_history = 0;
u16 acpi_gbl_num_history = 0;
u16 acpi_gbl_next_history_index = 0;
u32 acpi_gbl_next_cmd_num = 1;
/*******************************************************************************
*
* FUNCTION: Acpi_db_add_to_history
*
* PARAMETERS: Command_line - Command to add
*
* RETURN: None
*
* DESCRIPTION: Add a command line to the history buffer.
*
******************************************************************************/
void
acpi_db_add_to_history (
NATIVE_CHAR *command_line)
{
/* Put command into the next available slot */
STRCPY (acpi_gbl_history_buffer[acpi_gbl_next_history_index].command, command_line);
acpi_gbl_history_buffer[acpi_gbl_next_history_index].cmd_num = acpi_gbl_next_cmd_num;
/* Adjust indexes */
if ((acpi_gbl_num_history == HISTORY_SIZE) &&
(acpi_gbl_next_history_index == acpi_gbl_lo_history)) {
acpi_gbl_lo_history++;
if (acpi_gbl_lo_history >= HISTORY_SIZE) {
acpi_gbl_lo_history = 0;
}
}
acpi_gbl_next_history_index++;
if (acpi_gbl_next_history_index >= HISTORY_SIZE) {
acpi_gbl_next_history_index = 0;
}
acpi_gbl_next_cmd_num++;
if (acpi_gbl_num_history < HISTORY_SIZE) {
acpi_gbl_num_history++;
}
}
/*******************************************************************************
*
* FUNCTION: Acpi_db_display_history
*
* PARAMETERS: None
*
* RETURN: None
*
* DESCRIPTION: Display the contents of the history buffer
*
******************************************************************************/
void
acpi_db_display_history (void)
{
NATIVE_UINT i;
u16 history_index;
history_index = acpi_gbl_lo_history;
/* Dump entire history buffer */
for (i = 0; i < acpi_gbl_num_history; i++) {
acpi_os_printf ("%ld %s\n", acpi_gbl_history_buffer[history_index].cmd_num,
acpi_gbl_history_buffer[history_index].command);
history_index++;
if (history_index >= HISTORY_SIZE) {
history_index = 0;
}
}
}
/*******************************************************************************
*
* FUNCTION: Acpi_db_get_from_history
*
* PARAMETERS: Command_num_arg - String containing the number of the
* command to be retrieved
*
* RETURN: None
*
* DESCRIPTION: Get a command from the history buffer
*
******************************************************************************/
NATIVE_CHAR *
acpi_db_get_from_history (
NATIVE_CHAR *command_num_arg)
{
NATIVE_UINT i;
u16 history_index;
u32 cmd_num;
if (command_num_arg == NULL) {
cmd_num = acpi_gbl_next_cmd_num - 1;
}
else {
cmd_num = STRTOUL (command_num_arg, NULL, 0);
}
/* Search history buffer */
history_index = acpi_gbl_lo_history;
for (i = 0; i < acpi_gbl_num_history; i++) {
if (acpi_gbl_history_buffer[history_index].cmd_num == cmd_num) {
/* Found the commnad, return it */
return (acpi_gbl_history_buffer[history_index].command);
}
history_index++;
if (history_index >= HISTORY_SIZE) {
history_index = 0;
}
}
acpi_os_printf ("Invalid history number: %d\n", history_index);
return (NULL);
}
#endif /* ENABLE_DEBUGGER */
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