patch-2.4.6 linux/drivers/acpi/debugger/dbfileio.c
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- Lines: 379
- Date:
Wed Jun 20 17:47:39 2001
- Orig file:
v2.4.5/linux/drivers/acpi/debugger/dbfileio.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.4.5/linux/drivers/acpi/debugger/dbfileio.c linux/drivers/acpi/debugger/dbfileio.c
@@ -0,0 +1,378 @@
+/*******************************************************************************
+ *
+ * Module Name: dbfileio - Debugger file I/O commands. These can't usually
+ * be used when running the debugger in Ring 0 (Kernel mode)
+ * $Revision: 41 $
+ *
+ ******************************************************************************/
+
+/*
+ * 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")
+
+
+ACPI_PARSE_OBJECT *root;
+
+#ifdef ACPI_APPLICATION
+#include <stdio.h>
+FILE *debug_file = NULL;
+#endif
+
+
+/*
+ * NOTE: this is here for lack of a better place. It is used in all
+ * flavors of the debugger, need LCD file
+ */
+
+/*******************************************************************************
+ *
+ * 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 (debug_file) {
+ fclose (debug_file);
+ debug_file = NULL;
+ output_to_file = FALSE;
+ acpi_os_printf ("Debug output file %s closed\n", 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 ();
+ debug_file = fopen (name, "w+");
+ if (debug_file) {
+ acpi_os_printf ("Debug output file %s opened\n", name);
+ STRCPY (debug_filename, name);
+ 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_ptr;
+ 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");
+ return (AE_ERROR);
+ }
+
+ /* Allocate a buffer for the table */
+
+ *table_length = table_header.length;
+ *table_ptr = (ACPI_TABLE_HEADER *) acpi_ut_allocate ((size_t) *table_length);
+ if (!*table_ptr) {
+ acpi_os_printf ("Could not allocate memory for the table (size=%X)\n", table_header.length);
+ return (AE_NO_MEMORY);
+ }
+
+
+ aml_ptr = (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_ptr, 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_ut_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;
+
+
+ if (!table_ptr) {
+ return (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 (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_uninstall_table (table_info.installed_desc);
+ return (status);
+ }
+#endif
+
+ return (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;
+ ACPI_TABLE_HEADER *table_ptr;
+ 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, &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 (table_ptr);
+
+ if (ACPI_FAILURE (status)) {
+ if (status == AE_EXIST) {
+ acpi_os_printf ("Table %4.4s is already installed\n",
+ &table_ptr->signature);
+ }
+ else {
+ acpi_os_printf ("Could not install table, %s\n",
+ acpi_ut_format_exception (status));
+ }
+ acpi_ut_free (table_ptr);
+ return (status);
+ }
+
+ acpi_os_printf ("%4.4s at %p successfully installed and loaded\n",
+ &table_ptr->signature, table_ptr);
+
+ acpi_gbl_acpi_hardware_present = FALSE;
+
+#endif /* ACPI_APPLICATION */
+ return (AE_OK);
+}
+
+
+#endif /* ENABLE_DEBUGGER */
+
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