wimax: debugfs controls
Inaky Perez-Gonzalez [Sun, 21 Dec 2008 00:57:40 +0000 (16:57 -0800)]
Expose knobs to control the stack's debug output.

Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

net/wimax/debugfs.c [new file with mode: 0644]

diff --git a/net/wimax/debugfs.c b/net/wimax/debugfs.c
new file mode 100644 (file)
index 0000000..87cf443
--- /dev/null
@@ -0,0 +1,90 @@
+/*
+ * Linux WiMAX
+ * Debugfs support
+ *
+ *
+ * Copyright (C) 2005-2006 Intel Corporation <linux-wimax@intel.com>
+ * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+#include <linux/debugfs.h>
+#include <linux/wimax.h>
+#include "wimax-internal.h"
+
+#define D_SUBMODULE debugfs
+#include "debug-levels.h"
+
+
+/* Debug framework control of debug levels */
+struct d_level D_LEVEL[] = {
+       D_SUBMODULE_DEFINE(debugfs),
+       D_SUBMODULE_DEFINE(id_table),
+       D_SUBMODULE_DEFINE(op_msg),
+       D_SUBMODULE_DEFINE(op_reset),
+       D_SUBMODULE_DEFINE(op_rfkill),
+       D_SUBMODULE_DEFINE(stack),
+};
+size_t D_LEVEL_SIZE = ARRAY_SIZE(D_LEVEL);
+
+#define __debugfs_register(prefix, name, parent)                       \
+do {                                                                   \
+       result = d_level_register_debugfs(prefix, name, parent);        \
+       if (result < 0)                                                 \
+               goto error;                                             \
+} while (0)
+
+
+int wimax_debugfs_add(struct wimax_dev *wimax_dev)
+{
+       int result;
+       struct net_device *net_dev = wimax_dev->net_dev;
+       struct device *dev = net_dev->dev.parent;
+       struct dentry *dentry;
+       char buf[128];
+
+       snprintf(buf, sizeof(buf), "wimax:%s", net_dev->name);
+       dentry = debugfs_create_dir(buf, NULL);
+       result = PTR_ERR(dentry);
+       if (IS_ERR(dentry)) {
+               if (result == -ENODEV)
+                       result = 0;     /* No debugfs support */
+               else
+                       dev_err(dev, "Can't create debugfs dentry: %d\n",
+                               result);
+               goto out;
+       }
+       wimax_dev->debugfs_dentry = dentry;
+       __debugfs_register("wimax_dl_", debugfs, dentry);
+       __debugfs_register("wimax_dl_", id_table, dentry);
+       __debugfs_register("wimax_dl_", op_msg, dentry);
+       __debugfs_register("wimax_dl_", op_reset, dentry);
+       __debugfs_register("wimax_dl_", op_rfkill, dentry);
+       __debugfs_register("wimax_dl_", stack, dentry);
+       result = 0;
+out:
+       return result;
+
+error:
+       debugfs_remove_recursive(wimax_dev->debugfs_dentry);
+       return result;
+}
+
+void wimax_debugfs_rm(struct wimax_dev *wimax_dev)
+{
+       debugfs_remove_recursive(wimax_dev->debugfs_dentry);
+}
+
+