path: root/drivers/net/wireless/ath/ath9k/htc_drv_debug.c

/*
 * Copyright (c) 2010-2011 Atheros Communications Inc.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include "htc.h"

static int ath9k_debugfs_open(struct inode *inode, struct file *file)
{
	file->private_data = inode->i_private;
	return 0;
}

static ssize_t read_file_tgt_int_stats(struct file *file, char __user *user_buf,
				       size_t count, loff_t *ppos)
{
	struct ath9k_htc_priv *priv = file->private_data;
	struct ath9k_htc_target_int_stats cmd_rsp;
	char buf[512];
	unsigned int len = 0;
	int ret = 0;

	memset(&cmd_rsp, 0, sizeof(cmd_rsp));

	ath9k_htc_ps_wakeup(priv);

	WMI_CMD(WMI_INT_STATS_CMDID);
	if (ret) {
		ath9k_htc_ps_restore(priv);
		return -EINVAL;
	}

	ath9k_htc_ps_restore(priv);

	len += snprintf(buf + len, sizeof(buf) - len,
			"%20s : %10u\n", "RX",
			be32_to_cpu(cmd_rsp.rx));

	len += snprintf(buf + len, sizeof(buf) - len,
			"%20s : %10u\n", "RXORN",
			be32_to_cpu(cmd_rsp.rxorn));

	len += snprintf(buf + len, sizeof(buf) - len,
			"%20s : %10u\n", "RXEOL",
			be32_to_cpu(cmd_rsp.rxeol));

	len += snprintf(buf + len, sizeof(buf) - len,
			"%20s : %10u\n", "TXURN",
			be32_to_cpu(cmd_rsp.txurn));

	len += snprintf(buf + len, sizeof(buf) - len,
			"%20s : %10u\n", "TXTO",
			be32_to_cpu(cmd_rsp.txto));

	len += snprintf(buf + len, sizeof(buf) - len,
			"%20s : %10u\n", "CST",
			be32_to_cpu(cmd_rsp.cst));

	if (len > sizeof(buf))
		len = sizeof(buf);

	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}

static const struct file_operations fops_tgt_int_stats = {
	.read = read_file_tgt_int_stats,
	.open = ath9k_debugfs_open,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
};

static ssize_t read_file_tgt_tx_stats(struct file *file, char __user *user_buf,
				      size_t count, loff_t *ppos)
{
	struct ath9k_htc_priv *priv = file->private_data;
	struct ath9k_htc_target_tx_stats cmd_rsp;
	char buf[512];
	unsigned int len = 0;
	int ret = 0;

	memset(&cmd_rsp, 0, sizeof(cmd_rsp));

	ath9k_htc_ps_wakeup(priv);

	WMI_CMD(WMI_TX_STATS_CMDID);
	if (ret) {
		ath9k_htc_ps_restore(priv);
		return -EINVAL;
	}

	ath9k_htc_ps_restore(priv);

	len += snprintf(buf + len, sizeof(buf) - len,
			"%20s : %10u\n", "Xretries",
			be32_to_cpu(cmd_rsp.xretries));

	len += snprintf(buf + len, sizeof(buf) - len,
			"%20s : %10u\n", "FifoErr",
			be32_to_cpu(cmd_rsp.fifoerr));

	len += snprintf(buf + len, sizeof(buf) - len,
			"%20s : %10u\n", "Filtered",
			be32_to_cpu(cmd_rsp.filtered));

	len += snprintf(buf + len, sizeof(buf) - len,
			"%20s : %10u\n", "TimerExp",
			be32_to_cpu(cmd_rsp.timer_exp));

	len += snprintf(buf + len, sizeof(buf) - len,
			"%20s : %10u\n", "ShortRetries",
			be32_to_cpu(cmd_rsp.shortretries));

	len += snprintf(buf + len, sizeof(buf) - len,
			"%20s : %10u\n", "LongRetries",
			be32_to_cpu(cmd_rsp.longretries));

	len += snprintf(buf + len, sizeof(buf)