Linux-2.6.12-rc2v2.6.12-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!

1 files changed, 187 insertions, 0 deletions

diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c
new file mode 100644
index 000000000000..8925a6ca5f87
--- /dev/null
+++ b/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);