path: root/drivers/net/wireless/iwlegacy/iwl-debugfs.c

/******************************************************************************
 *
 * GPL LICENSE SUMMARY
 *
 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License 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,
 * USA
 *
 * The full GNU General Public License is included in this distribution
 * in the file called LICENSE.GPL.
 *
 * Contact Information:
 *  Intel Linux Wireless <ilw@linux.intel.com>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *****************************************************************************/
#include <linux/ieee80211.h>
#include <net/mac80211.h>


#include "iwl-dev.h"
#include "iwl-debug.h"
#include "iwl-core.h"
#include "iwl-io.h"

/* create and remove of files */
#define DEBUGFS_ADD_FILE(name, parent, mode) do {			\
	if (!debugfs_create_file(#name, mode, parent, priv,		\
			 &iwl_legacy_dbgfs_##name##_ops))		\
		goto err;						\
} while (0)

#define DEBUGFS_ADD_BOOL(name, parent, ptr) do {			\
	struct dentry *__tmp;						\
	__tmp = debugfs_create_bool(#name, S_IWUSR | S_IRUSR,		\
				    parent, ptr);			\
	if (IS_ERR(__tmp) || !__tmp)					\
		goto err;						\
} while (0)

#define DEBUGFS_ADD_X32(name, parent, ptr) do {				\
	struct dentry *__tmp;						\
	__tmp = debugfs_create_x32(#name, S_IWUSR | S_IRUSR,		\
				   parent, ptr);			\
	if (IS_ERR(__tmp) || !__tmp)					\
		goto err;						\
} while (0)

/* file operation */
#define DEBUGFS_READ_FUNC(name)                                         \
static ssize_t iwl_legacy_dbgfs_##name##_read(struct file *file,               \
					char __user *user_buf,          \
					size_t count, loff_t *ppos);

#define DEBUGFS_WRITE_FUNC(name)                                        \
static ssize_t iwl_legacy_dbgfs_##name##_write(struct file *file,              \
					const char __user *user_buf,    \
					size_t count, loff_t *ppos);


static int
iwl_legacy_dbgfs_open_file_generic(struct inode *inode, struct file *file)
{
	file->private_data = inode->i_private;
	return 0;
}

#define DEBUGFS_READ_FILE_OPS(name) 				\
	DEBUGFS_READ_FUNC(name);                                        \
static const struct file_operations iwl_legacy_dbgfs_##name##_ops = {	\
	.read = iwl_legacy_dbgfs_##name##_read,				\
	.open = iwl_legacy_dbgfs_open_file_generic,                    	\
	.llseek = generic_file_llseek,					\
};

#define DEBUGFS_WRITE_FILE_OPS(name) 				\
	DEBUGFS_WRITE_FUNC(name);                                       \
static const struct file_operations iwl_legacy_dbgfs_##name##_ops = {	\
	.write = iwl_legacy_dbgfs_##name##_write,			\
	.open = iwl_legacy_dbgfs_open_file_generic,                    	\
	.llseek = generic_file_llseek,					\
};

#define DEBUGFS_READ_WRITE_FILE_OPS(name)                           \
	DEBUGFS_READ_FUNC(name);                                        \
	DEBUGFS_WRITE_FUNC(name);                                       \
static const struct file_operations iwl_legacy_dbgfs_##name##_ops = {	\
	.write = iwl_legacy_dbgfs_##name##_write,			\
	.read = iwl_legacy_dbgfs_##name##_read,				\
	.open = iwl_legacy_dbgfs_open_file_generic,			\
	.llseek = generic_file_llseek,					\
};

static ssize_t iwl_legacy_dbgfs_tx_statistics_read(struct file *file,
						char __user *user_buf,
						size_t count, loff_t *ppos) {

	struct iwl_priv *priv = file->private_data;
	char *buf;
	int pos = 0;

	int cnt;
	ssize_t ret;
	const size_t bufsz = 100 +
		sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
	buf = kzalloc(bufsz, GFP_KERNEL);
	if (!buf)
		return -ENOMEM;
	pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
	for (cnt