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

/******************************************************************************
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2010 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 "iwl-agn-debugfs.h"

static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
{
	int p = 0;
	u32 flag;

	if (priv->cfg->bt_statistics)
		flag = le32_to_cpu(priv->_agn.statistics_bt.flag);
	else
		flag = le32_to_cpu(priv->_agn.statistics.flag);

	p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", flag);
	if (flag & UCODE_STATISTICS_CLEAR_MSK)
		p += scnprintf(buf + p, bufsz - p,
		"\tStatistics have been cleared\n");
	p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
		(flag & UCODE_STATISTICS_FREQUENCY_MSK)
		? "2.4 GHz" : "5.2 GHz");
	p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
		(flag & UCODE_STATISTICS_NARROW_BAND_MSK)
		 ? "enabled" : "disabled");

	return p;
}

ssize_t iwl_ucode_rx_stats_read(struct file *file, char __user *user_buf,
				size_t count, loff_t *ppos)
  {
	struct iwl_priv *priv = file->private_data;
	int pos = 0;
	char *buf;
	int bufsz = sizeof(struct statistics_rx_phy) * 40 +
		    sizeof(struct statistics_rx_non_phy) * 40 +
		    sizeof(struct statistics_rx_ht_phy) * 40 + 400;
	ssize_t ret;
	struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
	struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
	struct statistics_rx_non_phy *general, *accum_general;
	struct statistics_rx_non_phy *delta_general, *max_general;
	struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht;

	if (!iwl_is_alive(priv))
		return -EAGAIN;

	buf = kzalloc(bufsz, GFP_KERNEL);
	if (!buf) {
		IWL_ERR(priv, "Can not allocate Buffer\n");
		return -ENOMEM;
	}

	/*
	 * the statistic information display here is based on
	 * the last statistics notification from uCode
	 * might not reflect the current uCode activity
	 */
	if (priv->cfg->bt_statistics) {
		ofdm = &priv->_agn.statistics_bt.rx.ofdm;
		cck = &priv->_agn.statistics_bt.rx.cck;
		general = &priv->_agn.statistics_bt.rx.general.common;
		ht = &priv->_agn.statistics_bt.rx.ofdm_ht;
		accum_ofdm = &priv->_agn.accum_statistics_bt.rx.ofdm;
		accum_cck = &priv->_agn.accum_statistics_bt.rx.cck;
		accum_general =
			&priv->_agn.accum_statistics_bt.rx.general.common;
		accum_ht = &priv->_agn.accum_statistics_bt.rx.ofdm_ht;
		delta_ofdm = &priv->_agn.delta_statistics_bt.rx.ofdm;
		delta_cck = &priv->_agn.delta_statistics_bt.rx.cck;
		delta_general =
			&priv->_agn.delta_statistics_bt.rx.general.common;
		delta_ht = &priv->_agn.delta_statistics_bt.rx.ofdm_ht;
		max_ofdm = &priv->_agn.max_delta_bt.rx.ofdm;
		max_cck = &priv->_agn.max_delta_bt.rx.cck;
		max_general = &priv->_agn.max_delta_bt.rx.general.common;
		max_ht =