path: root/drivers/net/wireless/ath/ath10k/debug.c

/*
 * Copyright (c) 2005-2011 Atheros Communications Inc.
 * Copyright (c) 2011-2013 Qualcomm Atheros, 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 <linux/module.h>
#include <linux/debugfs.h>

#include "core.h"
#include "debug.h"

/* ms */
#define ATH10K_DEBUG_HTT_STATS_INTERVAL 1000

static int ath10k_printk(const char *level, const char *fmt, ...)
{
	struct va_format vaf;
	va_list args;
	int rtn;

	va_start(args, fmt);

	vaf.fmt = fmt;
	vaf.va = &args;

	rtn = printk("%sath10k: %pV", level, &vaf);

	va_end(args);

	return rtn;
}

int ath10k_info(const char *fmt, ...)
{
	struct va_format vaf = {
		.fmt = fmt,
	};
	va_list args;
	int ret;

	va_start(args, fmt);
	vaf.va = &args;
	ret = ath10k_printk(KERN_INFO, "%pV", &vaf);
	trace_ath10k_log_info(&vaf);
	va_end(args);

	return ret;
}
EXPORT_SYMBOL(ath10k_info);

int ath10k_err(const char *fmt, ...)
{
	struct va_format vaf = {
		.fmt = fmt,
	};
	va_list args;
	int ret;

	va_start(args, fmt);
	vaf.va = &args;
	ret = ath10k_printk(KERN_ERR, "%pV", &vaf);
	trace_ath10k_log_err(&vaf);
	va_end(args);

	return ret;
}
EXPORT_SYMBOL(ath10k_err);

int ath10k_warn(const char *fmt, ...)
{
	struct va_format vaf = {
		.fmt = fmt,
	};
	va_list args;
	int ret = 0;

	va_start(args, fmt);
	vaf.va = &args;

	if (net_ratelimit())
		ret = ath10k_printk(KERN_WARNING, "%pV", &vaf);

	trace_ath10k_log_warn(&vaf);

	va_end(args);

	return ret;
}
EXPORT_SYMBOL(ath10k_warn);

#ifdef CONFIG_ATH10K_DEBUGFS

void ath10k_debug_read_service_map(struct ath10k *ar,
				   void *service_map,
				   size_t map_size)
{
	memcpy(ar->debug.wmi_service_bitmap, service_map, map_size);
}

static ssize_t ath10k_read_wmi_services(struct file *file,
					char __user *user_buf,
					size_t count, loff_t *ppos)
{
	struct ath10k *ar = file->private_data;
	char *buf;
	unsigned int len = 0, buf_len = 1500;
	const char *status;
	ssize_t ret_cnt;
	int i;

	buf = kzalloc(buf_len, GFP_KERNEL);
	if (!buf)
		return -ENOMEM;

	mutex_lock(&ar->conf_mutex);

	if (len > buf_len)
		len = buf_len;

	for (i = 0; i < WMI_SERVICE_LAST; i++) {
		if (WMI_SERVICE_IS_ENABLED(ar->debug.wmi_service_bitmap, i))
			status = "enabled";
		else
			status = "disabled";

		len += scnprintf(buf + len, buf_len - len,
				 "0x%02x - %20s - %s\n",
				 i, wmi_service_name(i), status);
	}

	ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);

	mutex_unlock(&ar->conf_mutex);

	kfree(buf);
	return ret_cnt;
}

static const struct file_operations fops_wmi_services = {
	.read = ath10k_read_wmi_services,
	.open = simple_open,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
};

void ath10k_debug_read_target_stats(struct ath10k *ar,
				    struct wmi_stats_event *ev)
{
	u8 *tmp = ev->data;
	struct ath10k_target_stats *stats;
	int num_pdev_stats, num_vdev_stats, num_peer_stats;
	struct wmi_pdev_stats *ps;
	int i;

	spin_lock_bh(&ar->data_lock);

	stats = &ar->debug.target_stats;

	num_pdev_stats = __le32_to_cpu(ev->num_pdev_stats); /* 0 or 1 */
	num_vdev_stats = __le32_to_cpu(ev->num_vdev_stats); /* 0 or max vdevs */
	num_peer_stats = __le32_to_cpu(ev->num_peer_stats); /* 0 or max peers */

	if (num_pdev_stats) {
		ps = (struct wmi_pdev_stats *)tmp;

		stats->ch_noise_floor = __le32_to_cpu(ps->chan_nf);
		stats->tx_frame_count = __le32_to_cpu(ps->tx_frame_count);
		stats->rx_frame_count = __le32_to_cpu(ps->rx_frame_count);
		stats->rx_clear_count = __le32_to_cpu(ps->rx_clear_count);