Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

drivers/acpi/system.c

@@ -0,0 +1,187 @@
+/*
+ *  acpi_system.c - ACPI System Driver ($Revision: 63 $)
+ *
+ *  Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
+ *  Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ *  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 <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/init.h>
+#include <asm/uaccess.h>
+
+#include <acpi/acpi_drivers.h>
+
+
+#define _COMPONENT		ACPI_SYSTEM_COMPONENT
+ACPI_MODULE_NAME		("acpi_system")
+
+#define ACPI_SYSTEM_CLASS		"system"
+#define ACPI_SYSTEM_DRIVER_NAME		"ACPI System Driver"
+#define ACPI_SYSTEM_DEVICE_NAME		"System"
+#define ACPI_SYSTEM_FILE_INFO		"info"
+#define ACPI_SYSTEM_FILE_EVENT		"event"
+#define ACPI_SYSTEM_FILE_DSDT		"dsdt"
+#define ACPI_SYSTEM_FILE_FADT		"fadt"
+
+extern FADT_DESCRIPTOR		acpi_fadt;
+
+/* --------------------------------------------------------------------------
+                              FS Interface (/proc)
+   -------------------------------------------------------------------------- */
+
+static int
+acpi_system_read_info (struct seq_file *seq, void *offset)
+{
+	ACPI_FUNCTION_TRACE("acpi_system_read_info");
+
+	seq_printf(seq, "version:                 %x\n", ACPI_CA_VERSION);
+	return_VALUE(0);
+}
+
+static int acpi_system_info_open_fs(struct inode *inode, struct file *file)
+{
+	return single_open(file, acpi_system_read_info, PDE(inode)->data);
+}
+
+static struct file_operations acpi_system_info_ops = {
+	.open		= acpi_system_info_open_fs,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static ssize_t acpi_system_read_dsdt (struct file*, char __user *, size_t, loff_t*);
+
+static struct file_operations acpi_system_dsdt_ops = {
+	.read =			acpi_system_read_dsdt,
+};
+
+static ssize_t
+acpi_system_read_dsdt (
+	struct file		*file,
+	char			__user *buffer,
+	size_t			count,
+	loff_t			*ppos)
+{
+	acpi_status		status = AE_OK;
+	struct acpi_buffer	dsdt = {ACPI_ALLOCATE_BUFFER, NULL};
+	ssize_t			res;
+
+	ACPI_FUNCTION_TRACE("acpi_system_read_dsdt");
+
+	status = acpi_get_table(ACPI_TABLE_DSDT, 1, &dsdt);
+	if (ACPI_FAILURE(status))
+		return_VALUE(-ENODEV);
+
+	res = simple_read_from_buffer(buffer, count, ppos,
+				      dsdt.pointer, dsdt.length);
+	acpi_os_free(dsdt.pointer);
+
+	return_VALUE(res);
+}
+
+
+static ssize_t acpi_system_read_fadt (struct file*, char __user *, size_t, loff_t*);
+
+static struct file_operations acpi_system_fadt_ops = {
+	.read =			acpi_system_read_fadt,
+};
+
+static ssize_t
+acpi_system_read_fadt (
+	struct file		*file,
+	char			__user *buffer,
+	size_t			count,
+	loff_t			*ppos)
+{
+	acpi_status		status = AE_OK;
+	struct acpi_buffer	fadt = {ACPI_ALLOCATE_BUFFER, NULL};
+	ssize_t			res;
+
+	ACPI_FUNCTION_TRACE("acpi_system_read_fadt");
+
+	status = acpi_get_table(ACPI_TABLE_FADT, 1, &fadt);
+	if (ACPI_FAILURE(status))
+		return_VALUE(-ENODEV);
+
+	res = simple_read_from_buffer(buffer, count, ppos,
+				      fadt.pointer, fadt.length);
+	acpi_os_free(fadt.pointer);
+
+	return_VALUE(res);
+}
+
+
+static int __init acpi_system_init (void)
+{
+	struct proc_dir_entry	*entry;
+	int error = 0;
+	char * name;
+
+	ACPI_FUNCTION_TRACE("acpi_system_init");
+
+	if (acpi_disabled)
+		return_VALUE(0);
+
+	/* 'info' [R] */
+	name = ACPI_SYSTEM_FILE_INFO;
+	entry = create_proc_entry(name,
+		S_IRUGO, acpi_root_dir);
+	if (!entry)
+		goto Error;
+	else {
+		entry->proc_fops = &acpi_system_info_ops;
+	}
+
+	/* 'dsdt' [R] */
+	name = ACPI_SYSTEM_FILE_DSDT;
+	entry = create_proc_entry(name, S_IRUSR, acpi_root_dir);
+	if (entry)
+		entry->proc_fops = &acpi_system_dsdt_ops;
+	else 
+		goto Error;
+
+	/* 'fadt' [R] */
+	name = ACPI_SYSTEM_FILE_FADT;
+	entry = create_proc_entry(name, S_IRUSR, acpi_root_dir);
+	if (entry)
+		entry->proc_fops = &acpi_system_fadt_ops;
+	else
+		goto Error;
+
+ Done:
+	return_VALUE(error);
+
+ Error:
+	ACPI_DEBUG_PRINT((ACPI_DB_ERROR, 
+			 "Unable to create '%s' proc fs entry\n", name));
+
+	remove_proc_entry(ACPI_SYSTEM_FILE_FADT, acpi_root_dir);
+	remove_proc_entry(ACPI_SYSTEM_FILE_DSDT, acpi_root_dir);
+	remove_proc_entry(ACPI_SYSTEM_FILE_INFO, acpi_root_dir);
+
+	error = -EFAULT;
+	goto Done;
+}
+
+
+subsys_initcall(acpi_system_init);