patch-2.4.6 linux/drivers/acpi/common/cmxface.c

• 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);
-}
-