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/*******************************************************************************
*
* Module Name: dbfileio - Debugger file I/O commands. These can't usually
* be used when running the debugger in Ring 0 (Kernel mode)
* $Revision: 53 $
*
******************************************************************************/
/*
* 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 "acdebug.h"
#include "acnamesp.h"
#include "acparser.h"
#include "acevents.h"
#include "actables.h"
#ifdef ENABLE_DEBUGGER
#define _COMPONENT ACPI_DEBUGGER
MODULE_NAME ("dbfileio")
/*
* NOTE: this is here for lack of a better place. It is used in all
* flavors of the debugger, need LCD file
*/
#ifdef ACPI_APPLICATION
#include <stdio.h>
FILE *acpi_gbl_debug_file = NULL;
#endif
acpi_table_header *acpi_gbl_db_table_ptr = NULL;
/*******************************************************************************
*
* FUNCTION: Acpi_db_match_argument
*
* PARAMETERS: User_argument - 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
acpi_db_match_argument (
NATIVE_CHAR *user_argument,
ARGUMENT_INFO *arguments)
{
u32 i;
if (!user_argument || user_argument[0] == 0) {
return (ACPI_TYPE_NOT_FOUND);
}
for (i = 0; arguments[i].name; i++) {
if (STRSTR (arguments[i].name, user_argument) == arguments[i].name) {
return ((acpi_object_type8) i);
}
}
/* Argument not recognized */
return (ACPI_TYPE_NOT_FOUND);
}
/*******************************************************************************
*
* FUNCTION: Acpi_db_close_debug_file
*
* PARAMETERS: None
*
* RETURN: Status
*
* DESCRIPTION: If open, close the current debug output file
*
******************************************************************************/
void
acpi_db_close_debug_file (
void)
{
#ifdef ACPI_APPLICATION
if (acpi_gbl_debug_file) {
fclose (acpi_gbl_debug_file);
acpi_gbl_debug_file = NULL;
acpi_gbl_db_output_to_file = FALSE;
acpi_os_printf ("Debug output file %s closed\n", acpi_gbl_db_debug_filename);
}
#endif
}
/*******************************************************************************
*
* FUNCTION: Acpi_db_open_debug_file
*
* PARAMETERS: Name - Filename to open
*
* RETURN: Status
*
* DESCRIPTION: Open a file where debug output will be directed.
*
******************************************************************************/
void
acpi_db_open_debug_file (
NATIVE_CHAR *name)
{
#ifdef ACPI_APPLICATION
acpi_db_close_debug_file ();
acpi_gbl_debug_file = fopen (name, "w+");
if (acpi_gbl_debug_file) {
acpi_os_printf ("Debug output file %s opened\n", name);
STRCPY (acpi_gbl_db_debug_filename, name);
acpi_gbl_db_output_to_file = TRUE;
}
else {
acpi_os_printf ("Could not open debug file %s\n", name);
}
#endif
}
#ifdef ACPI_APPLICATION
/*******************************************************************************
*
* FUNCTION: Acpi_db_load_table
*
* PARAMETERS: fp - File that contains table
* Table_ptr - Return value, buffer with table
* Table_lenght - Return value, length of table
*
* RETURN: Status
*
* DESCRIPTION: Load the DSDT from the file pointer
*
******************************************************************************/
acpi_status
acpi_db_load_table(
FILE *fp,
acpi_table_header **table_ptr,
u32 *table_length)
{
acpi_table_header table_header;
u8 *aml_start;
u32 aml_length;
u32 actual;
acpi_status status;
/* Read the table header */
if (fread (&table_header, 1, sizeof (table_header), fp) != sizeof (acpi_table_header)) {
acpi_os_printf ("Couldn't read the table header\n");
return (AE_BAD_SIGNATURE);
}
/* Validate the table header/length */
status = acpi_tb_validate_table_header (&table_header);
if ((ACPI_FAILURE (status)) ||
(table_header.length > 524288)) /* 1/2 Mbyte should be enough */ {
acpi_os_printf ("Table header is invalid!\n");
return (AE_ERROR);
}
/* We only support a limited number of table types */
if (STRNCMP ((char *) table_header.signature, DSDT_SIG, 4) &&
STRNCMP ((char *) table_header.signature, PSDT_SIG, 4) &&
STRNCMP ((char *) table_header.signature, SSDT_SIG, 4)) {
acpi_os_printf ("Table signature is invalid\n");
DUMP_BUFFER (&table_header, sizeof (acpi_table_header));
return (AE_ERROR);
}
/* Allocate a buffer for the table */
*table_length = table_header.length;
*table_ptr = acpi_os_allocate ((size_t) *table_length);
if (!*table_ptr) {
acpi_os_printf ("Could not allocate memory for ACPI table %4.4s (size=%X)\n",
table_header.signature, table_header.length);
return (AE_NO_MEMORY);
}
aml_start = (u8 *) *table_ptr + sizeof (table_header);
aml_length = *table_length - sizeof (table_header);
/* Copy the header to the buffer */
MEMCPY (*table_ptr, &table_header, sizeof (table_header));
/* Get the rest of the table */
actual = fread (aml_start, 1, (size_t) aml_length, fp);
if (actual == aml_length) {
return (AE_OK);
}
if (actual > 0) {
acpi_os_printf ("Warning - reading table, asked for %X got %X\n", aml_length, actual);
return (AE_OK);
}
acpi_os_printf ("Error - could not read the table file\n");
acpi_os_free (*table_ptr);
*table_ptr = NULL;
*table_length = 0;
return (AE_ERROR);
}
#endif
/*******************************************************************************
*
* FUNCTION: Ae_local_load_table
*
* PARAMETERS: Table_ptr - 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
ae_local_load_table (
acpi_table_header *table_ptr)
{
acpi_status status;
acpi_table_desc table_info;
FUNCTION_TRACE ("Ae_local_load_table");
if (!table_ptr) {
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
/* Install the new table into the local data structures */
table_info.pointer = table_ptr;
status = acpi_tb_install_table (NULL, &table_info);
if (ACPI_FAILURE (status)) {
/* Free table allocated by Acpi_tb_get_table */
acpi_tb_delete_single_table (&table_info);
return_ACPI_STATUS (status);
}
#ifndef PARSER_ONLY
status = acpi_ns_load_table (table_info.installed_desc, acpi_gbl_root_node);
if (ACPI_FAILURE (status)) {
/* Uninstall table and free the buffer */
acpi_tb_delete_acpi_table (ACPI_TABLE_DSDT);
return_ACPI_STATUS (status);
}
#endif
return_ACPI_STATUS (status);
}
/*******************************************************************************
*
* FUNCTION: Acpi_db_load_acpi_table
*
* PARAMETERS: Filname - File where table is located
*
* RETURN: Status
*
* DESCRIPTION: Load an ACPI table from a file
*
******************************************************************************/
acpi_status
acpi_db_load_acpi_table (
NATIVE_CHAR *filename)
{
#ifdef ACPI_APPLICATION
FILE *fp;
acpi_status status;
u32 table_length;
/* Open the file */
fp = fopen (filename, "rb");
if (!fp) {
acpi_os_printf ("Could not open file %s\n", filename);
return (AE_ERROR);
}
/* Get the entire file */
acpi_os_printf ("Loading Acpi table from file %s\n", filename);
status = acpi_db_load_table (fp, &acpi_gbl_db_table_ptr, &table_length);
fclose(fp);
if (ACPI_FAILURE (status)) {
acpi_os_printf ("Couldn't get table from the file\n");
return (status);
}
/* Attempt to recognize and install the table */
status = ae_local_load_table (acpi_gbl_db_table_ptr);
if (ACPI_FAILURE (status)) {
if (status == AE_EXIST) {
acpi_os_printf ("Table %4.4s is already installed\n",
&acpi_gbl_db_table_ptr->signature);
}
else {
acpi_os_printf ("Could not install table, %s\n",
acpi_format_exception (status));
}
acpi_os_free (acpi_gbl_db_table_ptr);
return (status);
}
acpi_os_printf ("%4.4s at %p successfully installed and loaded\n",
&acpi_gbl_db_table_ptr->signature, acpi_gbl_db_table_ptr);
acpi_gbl_acpi_hardware_present = FALSE;
#endif /* ACPI_APPLICATION */
return (AE_OK);
}
#endif /* ENABLE_DEBUGGER */
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