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 /* Debug framework control of debug levels */
  32 struct d_level D_LEVEL[] = {
  33         D_SUBMODULE_DEFINE(debugfs),
  34         D_SUBMODULE_DEFINE(id_table),
  35         D_SUBMODULE_DEFINE(op_msg),
  36         D_SUBMODULE_DEFINE(op_reset),
  37         D_SUBMODULE_DEFINE(op_rfkill),
  38         D_SUBMODULE_DEFINE(stack),
  39 };
  40 size_t D_LEVEL_SIZE = ARRAY_SIZE(D_LEVEL);
  41
  42 #define __debugfs_register(prefix, name, parent)                        \
  43 do {                                                                    \
  44         result = d_level_register_debugfs(prefix, name, parent);        \
  45         if (result < 0)                                                 \
  46                 goto error;                                             \
  47 } while (0)
  48
  49
  50 int wimax_debugfs_add(struct wimax_dev *wimax_dev)
  51 {
  52         int result;
  53         struct net_device *net_dev = wimax_dev->net_dev;
  54         struct device *dev = net_dev->dev.parent;
  55         struct dentry *dentry;
  56         char buf[128];
  57
  58         snprintf(buf, sizeof(buf), "wimax:%s", net_dev->name);
  59         dentry = debugfs_create_dir(buf, NULL);
  60         result = PTR_ERR(dentry);
  61         if (IS_ERR(dentry)) {
  62                 if (result == -ENODEV)
  63                         result = 0;     /* No debugfs support */
  64                 else
  65                         dev_err(dev, "Can't create debugfs dentry: %d\n",
  66                                 result);
  67                 goto out;
  68         }
  69         wimax_dev->debugfs_dentry = dentry;
  70         __debugfs_register("wimax_dl_", debugfs, dentry);
  71         __debugfs_register("wimax_dl_", id_table, dentry);
  72         __debugfs_register("wimax_dl_", op_msg, dentry);
  73         __debugfs_register("wimax_dl_", op_reset, dentry);
  74         __debugfs_register("wimax_dl_", op_rfkill, dentry);
  75         __debugfs_register("wimax_dl_", stack, dentry);
  76         result = 0;
  77 out:
  78         return result;
  79
  80 error:
  81         debugfs_remove_recursive(wimax_dev->debugfs_dentry);
  82         return result;
  83 }
  84
  85 void wimax_debugfs_rm(struct wimax_dev *wimax_dev)
  86 {
  87         debugfs_remove_recursive(wimax_dev->debugfs_dentry);
  88 }
  89
  90