release/src-rt-6.x.4708/linux/linux-2.6.36/net/wimax/debugfs.c

   1 /*
   2  * Linux WiMAX
   3  * Debugfs support
   4  *
   5  *
   6  * Copyright (C) 2005-2006 Intel Corporation <linux-wimax@intel.com>
   7  * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License version
  11  * 2 as published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  21  * 02110-1301, USA.
  22  */
  23 #include <linux/debugfs.h>
  24 #include <linux/wimax.h>
  25 #include "wimax-internal.h"
  26
  27 #define D_SUBMODULE debugfs
  28 #include "debug-levels.h"
  29
  30
  31 #define __debugfs_register(prefix, name, parent)                        \
  32 do {                                                                    \
  33         result = d_level_register_debugfs(prefix, name, parent);        \
  34         if (result < 0)                                                 \
  35                 goto error;                                             \
  36 } while (0)
  37
  38
  39 int wimax_debugfs_add(struct wimax_dev *wimax_dev)
  40 {
  41         int result;
  42         struct net_device *net_dev = wimax_dev->net_dev;
  43         struct device *dev = net_dev->dev.parent;
  44         struct dentry *dentry;
  45         char buf[128];
  46
  47         snprintf(buf, sizeof(buf), "wimax:%s", net_dev->name);
  48         dentry = debugfs_create_dir(buf, NULL);
  49         result = PTR_ERR(dentry);
  50         if (IS_ERR(dentry)) {
  51                 if (result == -ENODEV)
  52                         result = 0;     /* No debugfs support */
  53                 else
  54                         dev_err(dev, "Can't create debugfs dentry: %d\n",
  55                                 result);
  56                 goto out;
  57         }
  58         wimax_dev->debugfs_dentry = dentry;
  59         __debugfs_register("wimax_dl_", debugfs, dentry);
  60         __debugfs_register("wimax_dl_", id_table, dentry);
  61         __debugfs_register("wimax_dl_", op_msg, dentry);
  62         __debugfs_register("wimax_dl_", op_reset, dentry);
  63         __debugfs_register("wimax_dl_", op_rfkill, dentry);
  64         __debugfs_register("wimax_dl_", op_state_get, dentry);
  65         __debugfs_register("wimax_dl_", stack, dentry);
  66         result = 0;
  67 out:
  68         return result;
  69
  70 error:
  71         debugfs_remove_recursive(wimax_dev->debugfs_dentry);
  72         return result;
  73 }
  74
  75 void wimax_debugfs_rm(struct wimax_dev *wimax_dev)
  76 {
  77         debugfs_remove_recursive(wimax_dev->debugfs_dentry);
  78 }