patch-2.4.6 linux/drivers/acpi/common/cmxface.c
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- Lines: 397
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
v2.4.5/linux/drivers/acpi/common/cmxface.c
- Orig date:
Fri Feb 9 11:45:58 2001
diff -u --recursive --new-file v2.4.5/linux/drivers/acpi/common/cmxface.c linux/drivers/acpi/common/cmxface.c
@@ -1,396 +0,0 @@
-/******************************************************************************
- *
- * Module Name: cmxface - External interfaces for "global" ACPI functions
- * $Revision: 64 $
- *
- *****************************************************************************/
-
-/*
- * 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 "acevents.h"
-#include "achware.h"
-#include "acnamesp.h"
-#include "acinterp.h"
-#include "amlcode.h"
-#include "acdebug.h"
-
-
-#define _COMPONENT MISCELLANEOUS
- MODULE_NAME ("cmxface")
-
-
-/*******************************************************************************
- *
- * FUNCTION: Acpi_initialize_subsystem
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Initializes all global variables. This is the first function
- * called, so any early initialization belongs here.
- *
- ******************************************************************************/
-
-ACPI_STATUS
-acpi_initialize_subsystem (
- void)
-{
- ACPI_STATUS status;
-
-
- /* Initialize all globals used by the subsystem */
-
- acpi_cm_init_globals ();
-
- /* Initialize the OS-Dependent layer */
-
- status = acpi_os_initialize ();
- if (ACPI_FAILURE (status)) {
- REPORT_ERROR (("OSD failed to initialize, %s\n",
- acpi_cm_format_exception (status)));
- return (status);
- }
-
- /* Create the default mutex objects */
-
- status = acpi_cm_mutex_initialize ();
- if (ACPI_FAILURE (status)) {
- REPORT_ERROR (("Global mutex creation failure, %s\n",
- acpi_cm_format_exception (status)));
- return (status);
- }
-
- /*
- * Initialize the namespace manager and
- * the root of the namespace tree
- */
-
- status = acpi_ns_root_initialize ();
- if (ACPI_FAILURE (status)) {
- REPORT_ERROR (("Namespace initialization failure, %s\n",
- acpi_cm_format_exception (status)));
- return (status);
- }
-
-
- /* If configured, initialize the AML debugger */
-
- DEBUGGER_EXEC (acpi_db_initialize ());
-
- return (status);
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION: Acpi_enable_subsystem
- *
- * PARAMETERS: Flags - Init/enable Options
- *
- * RETURN: Status
- *
- * DESCRIPTION: Completes the subsystem initialization including hardware.
- * Puts system into ACPI mode if it isn't already.
- *
- ******************************************************************************/
-
-ACPI_STATUS
-acpi_enable_subsystem (
- u32 flags)
-{
- ACPI_STATUS status = AE_OK;
-
-
- /* Sanity check the FADT for valid values */
-
- status = acpi_cm_validate_fadt ();
- if (ACPI_FAILURE (status)) {
- return (status);
- }
-
- /*
- * Install the default Op_region handlers. These are
- * installed unless other handlers have already been
- * installed via the Install_address_space_handler interface
- */
-
- if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) {
- status = acpi_ev_install_default_address_space_handlers ();
- if (ACPI_FAILURE (status)) {
- return (status);
- }
- }
-
- /*
- * We must initialize the hardware before we can enable ACPI.
- */
-
- if (!(flags & ACPI_NO_HARDWARE_INIT)) {
- status = acpi_hw_initialize ();
- if (ACPI_FAILURE (status)) {
- return (status);
- }
- }
-
- /*
- * Enable ACPI on this platform
- */
-
- if (!(flags & ACPI_NO_ACPI_ENABLE)) {
- status = acpi_enable ();
- if (ACPI_FAILURE (status)) {
- return (status);
- }
- }
-
- /*
- * Note:
- * We must have the hardware AND events initialized before we can execute
- * ANY control methods SAFELY. Any control method can require ACPI hardware
- * support, so the hardware MUST be initialized before execution!
- */
-
- if (!(flags & ACPI_NO_EVENT_INIT)) {
- status = acpi_ev_initialize ();
- if (ACPI_FAILURE (status)) {
- return (status);
- }
- }
-
-
- /*
- * Initialize all device objects in the namespace
- * This runs the _STA and _INI methods.
- */
-
- if (!(flags & ACPI_NO_DEVICE_INIT)) {
- status = acpi_ns_initialize_devices ();
- if (ACPI_FAILURE (status)) {
- return (status);
- }
- }
-
-
- /*
- * Initialize the objects that remain uninitialized. This
- * runs the executable AML that is part of the declaration of Op_regions
- * and Fields.
- */
-
- if (!(flags & ACPI_NO_OBJECT_INIT)) {
- status = acpi_ns_initialize_objects ();
- if (ACPI_FAILURE (status)) {
- return (status);
- }
- }
-
-
- return (status);
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION: Acpi_terminate
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Shutdown the ACPI subsystem. Release all resources.
- *
- ******************************************************************************/
-
-ACPI_STATUS
-acpi_terminate (void)
-{
-
- /* Terminate the AML Debuger if present */
-
- DEBUGGER_EXEC(acpi_gbl_db_terminate_threads = TRUE);
-
- /* TBD: [Investigate] This is no longer needed?*/
-/* Acpi_cm_release_mutex (ACPI_MTX_DEBUG_CMD_READY); */
-
-
- /* Shutdown and free all resources */
-
- acpi_cm_subsystem_shutdown ();
-
-
- /* Free the mutex objects */
-
- acpi_cm_mutex_terminate ();
-
-
- /* Now we can shutdown the OS-dependent layer */
-
- acpi_os_terminate ();
-
- return (AE_OK);
-}
-
-
-/******************************************************************************
- *
- * FUNCTION: Acpi_get_system_info
- *
- * PARAMETERS: Out_buffer - a pointer to a buffer to receive the
- * resources for the device
- * Buffer_length - the number of bytes available in the buffer
- *
- * RETURN: Status - the status of the call
- *
- * DESCRIPTION: This function is called to get information about the current
- * state of the ACPI subsystem. It will return system information
- * in the Out_buffer.
- *
- * If the function fails an appropriate status will be returned
- * and the value of Out_buffer is undefined.
- *
- ******************************************************************************/
-
-ACPI_STATUS
-acpi_get_system_info (
- ACPI_BUFFER *out_buffer)
-{
- ACPI_SYSTEM_INFO *info_ptr;
- u32 i;
-
-
- /*
- * Must have a valid buffer
- */
- if ((!out_buffer) ||
- (!out_buffer->pointer))
- {
- return (AE_BAD_PARAMETER);
- }
-
- if (out_buffer->length < sizeof (ACPI_SYSTEM_INFO)) {
- /*
- * Caller's buffer is too small
- */
- out_buffer->length = sizeof (ACPI_SYSTEM_INFO);
-
- return (AE_BUFFER_OVERFLOW);
- }
-
-
- /*
- * Set return length and get data
- */
- out_buffer->length = sizeof (ACPI_SYSTEM_INFO);
- info_ptr = (ACPI_SYSTEM_INFO *) out_buffer->pointer;
-
- info_ptr->acpi_ca_version = ACPI_CA_VERSION;
-
- /* System flags (ACPI capabilities) */
-
- info_ptr->flags = acpi_gbl_system_flags;
-
- /* Timer resolution - 24 or 32 bits */
- if (!acpi_gbl_FADT) {
- info_ptr->timer_resolution = 0;
- }
- else if (acpi_gbl_FADT->tmr_val_ext == 0) {
- info_ptr->timer_resolution = 24;
- }
- else {
- info_ptr->timer_resolution = 32;
- }
-
- /* Clear the reserved fields */
-
- info_ptr->reserved1 = 0;
- info_ptr->reserved2 = 0;
-
- /* Current debug levels */
-
- info_ptr->debug_layer = acpi_dbg_layer;
- info_ptr->debug_level = acpi_dbg_level;
-
- /* Current status of the ACPI tables, per table type */
-
- info_ptr->num_table_types = NUM_ACPI_TABLES;
- for (i = 0; i < NUM_ACPI_TABLES; i++) {
- info_ptr->table_info[i].count = acpi_gbl_acpi_tables[i].count;
- }
-
- return (AE_OK);
-}
-
-
-/******************************************************************************
- *
- * FUNCTION: Acpi_format_exception
- *
- * PARAMETERS: Out_buffer - a pointer to a buffer to receive the
- * exception name
- *
- * RETURN: Status - the status of the call
- *
- * DESCRIPTION: This function translates an ACPI exception into an ASCII string.
- *
- ******************************************************************************/
-
-ACPI_STATUS
-acpi_format_exception (
- ACPI_STATUS exception,
- ACPI_BUFFER *out_buffer)
-{
- u32 length;
- NATIVE_CHAR *formatted_exception;
-
-
- /*
- * Must have a valid buffer
- */
- if ((!out_buffer) ||
- (!out_buffer->pointer))
- {
- return (AE_BAD_PARAMETER);
- }
-
-
- /* Convert the exception code (Handles bad exception codes) */
-
- formatted_exception = acpi_cm_format_exception (exception);
-
- /*
- * Get length of string and check if it will fit in caller's buffer
- */
-
- length = STRLEN (formatted_exception);
- if (out_buffer->length < length) {
- out_buffer->length = length;
- return (AE_BUFFER_OVERFLOW);
- }
-
-
- /* Copy the string, all done */
-
- STRCPY (out_buffer->pointer, formatted_exception);
-
- return (AE_OK);
-}
-
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