120 lines
2.9 KiB
C
120 lines
2.9 KiB
C
/*
|
|
* Atheros AR71xx built-in ethernet mac driver
|
|
*
|
|
* Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
|
|
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
|
|
*
|
|
* Based on Atheros' AG7100 driver
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <linux/debugfs.h>
|
|
|
|
#include "ag71xx.h"
|
|
|
|
static struct dentry *ag71xx_debugfs_root;
|
|
|
|
static int ag71xx_debugfs_generic_open(struct inode *inode, struct file *file)
|
|
{
|
|
file->private_data = inode->i_private;
|
|
return 0;
|
|
}
|
|
|
|
void ag71xx_debugfs_update_int_stats(struct ag71xx *ag, u32 status)
|
|
{
|
|
if (status)
|
|
ag->debug.int_stats.total++;
|
|
if (status & AG71XX_INT_TX_PS)
|
|
ag->debug.int_stats.tx_ps++;
|
|
if (status & AG71XX_INT_TX_UR)
|
|
ag->debug.int_stats.tx_ur++;
|
|
if (status & AG71XX_INT_TX_BE)
|
|
ag->debug.int_stats.tx_be++;
|
|
if (status & AG71XX_INT_RX_PR)
|
|
ag->debug.int_stats.rx_pr++;
|
|
if (status & AG71XX_INT_RX_OF)
|
|
ag->debug.int_stats.rx_of++;
|
|
if (status & AG71XX_INT_RX_BE)
|
|
ag->debug.int_stats.rx_be++;
|
|
}
|
|
|
|
static ssize_t read_file_int_stats(struct file *file, char __user *user_buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
#define PR_INT_STAT(_label, _field) \
|
|
len += snprintf(buf + len, sizeof(buf) - len, \
|
|
"%20s: %10lu\n", _label, ag->debug.int_stats._field);
|
|
|
|
struct ag71xx *ag = file->private_data;
|
|
char buf[256];
|
|
unsigned int len = 0;
|
|
|
|
PR_INT_STAT("TX Packet Sent", tx_ps);
|
|
PR_INT_STAT("TX Underrun", tx_ur);
|
|
PR_INT_STAT("TX Bus Error", tx_be);
|
|
PR_INT_STAT("RX Packet Received", rx_pr);
|
|
PR_INT_STAT("RX Overflow", rx_of);
|
|
PR_INT_STAT("RX Bus Error", rx_be);
|
|
len += snprintf(buf + len, sizeof(buf) - len, "\n");
|
|
PR_INT_STAT("Total", total);
|
|
|
|
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
|
|
#undef PR_INT_STAT
|
|
}
|
|
|
|
static const struct file_operations ag71xx_fops_int_stats = {
|
|
.open = ag71xx_debugfs_generic_open,
|
|
.read = read_file_int_stats,
|
|
.owner = THIS_MODULE
|
|
};
|
|
|
|
void ag71xx_debugfs_exit(struct ag71xx *ag)
|
|
{
|
|
debugfs_remove(ag->debug.debugfs_int_stats);
|
|
debugfs_remove(ag->debug.debugfs_dir);
|
|
}
|
|
|
|
int ag71xx_debugfs_init(struct ag71xx *ag)
|
|
{
|
|
ag->debug.debugfs_dir = debugfs_create_dir(ag->dev->name,
|
|
ag71xx_debugfs_root);
|
|
if (!ag->debug.debugfs_dir)
|
|
goto err;
|
|
|
|
ag->debug.debugfs_int_stats =
|
|
debugfs_create_file("int_stats",
|
|
S_IRUGO,
|
|
ag->debug.debugfs_dir,
|
|
ag,
|
|
&ag71xx_fops_int_stats);
|
|
if (!ag->debug.debugfs_int_stats)
|
|
goto err;
|
|
|
|
return 0;
|
|
|
|
err:
|
|
ag71xx_debugfs_exit(ag);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
int ag71xx_debugfs_root_init(void)
|
|
{
|
|
if (ag71xx_debugfs_root)
|
|
return -EBUSY;
|
|
|
|
ag71xx_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
|
|
if (!ag71xx_debugfs_root)
|
|
return -ENOENT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void ag71xx_debugfs_root_exit(void)
|
|
{
|
|
debugfs_remove(ag71xx_debugfs_root);
|
|
ag71xx_debugfs_root = NULL;
|
|
}
|