patch-2.4.22 linux-2.4.22/drivers/acpi/driver.c

• Lines: 218
• Date: 1969-12-31 16:00:00.000000000 -0800
• Orig file: linux-2.4.21/drivers/acpi/driver.c
• Orig date: 2001-10-24 14:06:22.000000000 -0700

diff -urN linux-2.4.21/drivers/acpi/driver.c linux-2.4.22/drivers/acpi/driver.c
@@ -1,217 +0,0 @@
-/*
- *  driver.c - ACPI driver
- *
- *  Copyright (C) 2000 Andrew Henroid
- *  Copyright (C) 2001 Andrew Grover
- *
- *  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
- */
-/*
- * Changes
- * David Woodhouse <dwmw2@redhat.com> 2000-12-6
- * - Fix interruptible_sleep_on() races
- * Andrew Grover <andrew.grover@intel.com> 2001-2-28
- * - Major revamping
- * Peter Breuer <ptb@it.uc3m.es> 2001-5-20
- * - parse boot time params.
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/proc_fs.h>
-#include <linux/sysctl.h>
-#include <linux/pm.h>
-#include <linux/acpi.h>
-#include <asm/uaccess.h>
-#include "acpi.h"
-
-
-#define _COMPONENT	OS_DEPENDENT
-	MODULE_NAME	("driver")
-
-FADT_DESCRIPTOR acpi_fadt;
-
-static int acpi_disabled = 0;
-
-enum acpi_blacklist_predicates
-{
-	all_versions,
-	less_than_or_equal,
-	equal,
-	greater_than_or_equal,
-};
-
-struct acpi_blacklist_item
-{
-	char oem_id[7];
-	char oem_table_id[9];
-	u32  oem_revision;
-	enum acpi_blacklist_predicates oem_revision_predicate;
-};
-
-/*
- * Currently, this blacklists based on items in the FADT. We may want to
- * expand this to using other ACPI tables in the future, too.
- */
-static struct acpi_blacklist_item acpi_blacklist[] __initdata = 
-{
-	{"TOSHIB", "750     ", 0x970814, less_than_or_equal}, /* Portege 7020, BIOS 8.10 */
-	{""}
-};
-
-int
-acpi_blacklisted(FADT_DESCRIPTOR *fadt)
-{
-	int i = 0;
-
-	while (acpi_blacklist[i].oem_id[0] != '\0')
-	{
-		if (strncmp(acpi_blacklist[i].oem_id, fadt->header.oem_id, 6)) {
-			i++;
-			continue;
-		}
-
-		if (strncmp(acpi_blacklist[i].oem_table_id, fadt->header.oem_table_id, 8)) {
-			i++;
-			continue;
-		}
-
-		if (acpi_blacklist[i].oem_revision_predicate == all_versions)
-			return TRUE;
-
-		if (acpi_blacklist[i].oem_revision_predicate == less_than_or_equal
-		    && fadt->header.oem_revision <= acpi_blacklist[i].oem_revision)
-			return TRUE;
-
-		if (acpi_blacklist[i].oem_revision_predicate == greater_than_or_equal
-		    && fadt->header.oem_revision >= acpi_blacklist[i].oem_revision)
-			return TRUE;
-
-		if (acpi_blacklist[i].oem_revision_predicate == equal
-		    && fadt->header.oem_revision == acpi_blacklist[i].oem_revision)
-			return TRUE;
-
-		i++;
-	}
-
-	return FALSE;
-}
-
-/*
- * Start the interpreter
- */
-int
-acpi_init(void)
-{
-	acpi_buffer		buffer;
-	acpi_system_info	sys_info;
-
-	if (PM_IS_ACTIVE()) {
-		printk(KERN_NOTICE "ACPI: APM is already active, exiting\n");
-		return -ENODEV;
-	}
-
-	if (acpi_disabled) {
-		printk(KERN_NOTICE "ACPI: disabled by cmdline, exiting\n");
-		return -ENODEV;
-	}
-
-	if (!ACPI_SUCCESS(acpi_initialize_subsystem())) {
-		printk(KERN_ERR "ACPI: Driver initialization failed\n");
-		return -ENODEV;
-	}
-
-	/* from this point on, on error we must call acpi_terminate() */
-	if (!ACPI_SUCCESS(acpi_load_tables())) {
-		printk(KERN_ERR "ACPI: System description table load failed\n");
-		acpi_terminate();
-		return -ENODEV;
-	}
-
-	/* get a separate copy of the FADT for use by other drivers */
-	memset(&acpi_fadt, 0, sizeof(acpi_fadt));
-	buffer.pointer = &acpi_fadt;
-	buffer.length = sizeof(acpi_fadt);
-
-	if (!ACPI_SUCCESS(acpi_get_table(ACPI_TABLE_FADT, 1, &buffer))) {
-		printk(KERN_ERR "ACPI: Could not get FADT\n");
-		acpi_terminate();
-		return -ENODEV;
-	}
-
-	if (acpi_blacklisted(&acpi_fadt)) {
-		printk(KERN_ERR "ACPI: On blacklist -- BIOS not fully ACPI compliant\n");
-		acpi_terminate();
-		return -ENODEV;
-	}
-
-	buffer.length  = sizeof(sys_info);
-	buffer.pointer = &sys_info;
-
-	if (!ACPI_SUCCESS (acpi_get_system_info(&buffer))) {
-		printk(KERN_ERR "ACPI: Could not get system info\n");
-		acpi_terminate();
-		return -ENODEV;
-	}
-
-	printk(KERN_INFO "ACPI: Core Subsystem version [%x]\n", sys_info.acpi_ca_version);
-
-	if (!ACPI_SUCCESS(acpi_enable_subsystem(ACPI_FULL_INITIALIZATION))) {
-		printk(KERN_ERR "ACPI: Subsystem enable failed\n");
-		acpi_terminate();
-		return -ENODEV;
-	}
-
-	printk(KERN_INFO "ACPI: Subsystem enabled\n");
-
-	pm_active = 1;
-
-	return 0;
-}
-
-/*
- * Terminate the interpreter
- */
-void
-acpi_exit(void)
-{
-	acpi_terminate();
-
-	pm_active = 0;
-
-	printk(KERN_ERR "ACPI: Subsystem disabled\n");
-}
-
-module_init(acpi_init);
-module_exit(acpi_exit);
-
-#ifndef MODULE
-static int __init acpi_setup(char *str) {
-	while (str && *str) {
-	if (strncmp(str, "off", 3) == 0)
-		acpi_disabled = 1;
-	str = strchr(str, ',');
-	if (str)
-		str += strspn(str, ", \t");
-	}
-	return 1;
-}
-
-__setup("acpi=", acpi_setup);
-#endif