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/** @file uap_proc.c
* @brief This file contains functions for proc file.
*
* Copyright (C) 2008-2009, Marvell International Ltd.
*
* This software file (the "File") is distributed by Marvell International
* Ltd. under the terms of the GNU General Public License Version 2, June 1991
* (the "License"). You may use, redistribute and/or modify this File in
* accordance with the terms and conditions of the License, a copy of which
* is available along with the File in the gpl.txt file or by writing to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307 or on the worldwide web at http://www.gnu.org/licenses/gpl.txt.
*
* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
* this warranty disclaimer.
*
*/
#ifdef CONFIG_PROC_FS
#include "uap_headers.h"
/** /proc directory root */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
#define PROC_DIR NULL
#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
#define PROC_DIR &proc_root
#else
#define PROC_DIR proc_net
#endif
/********************************************************
Local Variables
********************************************************/
/********************************************************
Global Variables
********************************************************/
/********************************************************
Local Functions
********************************************************/
/**
* @brief proc read function
*
* @param page pointer to buffer
* @param start read data starting position
* @param offset offset
* @param count counter
* @param eof end of file flag
* @param data data to output
* @return number of output data
*/
static int
uap_proc_read(char *page, char **start, off_t offset,
int count, int *eof, void *data)
{
int i;
char *p = page;
struct net_device *netdev = data;
struct netdev_hw_addr *ha;
char fmt[64];
uap_private *priv = (uap_private *) netdev_priv(netdev);
if (offset != 0) {
*eof = 1;
goto exit;
}
strcpy(fmt, DRIVER_VERSION);
p += sprintf(p, "driver_name = " "\"uap\"\n");
p += sprintf(p, "driver_version = %s-(FP%s)", fmt, FPNUM);
p += sprintf(p, "\nInterfaceName=\"%s\"\n", netdev->name);
p += sprintf(p, "State=\"%s\"\n",
((priv->MediaConnected ==
FALSE) ? "Disconnected" : "Connected"));
p += sprintf(p, "MACAddress=\"%02x:%02x:%02x:%02x:%02x:%02x\"\n",
netdev->dev_addr[0], netdev->dev_addr[1], netdev->dev_addr[2],
netdev->dev_addr[3], netdev->dev_addr[4], netdev->dev_addr[5]);
i = 0;
netdev_for_each_mc_addr(ha, netdev) {
++i;
}
p += sprintf(p, "MCCount=\"%d\"\n", i);
/*
* Put out the multicast list
*/
i = 0;
netdev_for_each_mc_addr(ha, netdev) {
p += sprintf(p,
"MCAddr[%d]=\"%02x:%02x:%02x:%02x:%02x:%02x\"\n",
i++,
ha->addr[0], ha->addr[1],
ha->addr[2], ha->addr[3],
ha->addr[4], ha->addr[5]);
}
p += sprintf(p, "num_tx_bytes = %lu\n", priv->stats.tx_bytes);
p += sprintf(p, "num_rx_bytes = %lu\n", priv->stats.rx_bytes);
p += sprintf(p, "num_tx_pkts = %lu\n", priv->stats.tx_packets);
p += sprintf(p, "num_rx_pkts = %lu\n", priv->stats.rx_packets);
p += sprintf(p, "num_tx_pkts_dropped = %lu\n", priv->stats.tx_dropped);
p += sprintf(p, "num_rx_pkts_dropped = %lu\n", priv->stats.rx_dropped);
p += sprintf(p, "num_tx_pkts_err = %lu\n", priv->stats.tx_errors);
p += sprintf(p, "num_rx_pkts_err = %lu\n", priv->stats.rx_errors);
p += sprintf(p, "num_tx_timeout = %u\n", priv->num_tx_timeout);
p += sprintf(p, "carrier %s\n",
((netif_carrier_ok(priv->uap_dev.netdev)) ? "on" : "off"));
p += sprintf(p, "tx queue %s\n",
((netif_queue_stopped(priv->uap_dev.netdev)) ? "stopped" :
"started"));
exit:
return (p - page);
}
/**
* @brief hwstatus proc write function
*
* @param f file pointer
* @param buf pointer to data buffer
* @param cnt data number to write
* @param data data to write
* @return number of data
*/
static int
uap_hwstatus_write(struct file *f, const char *buf, unsigned long cnt,
void *data)
{
struct net_device *netdev = data;
uap_private *priv = (uap_private *) netdev_priv(netdev);
char databuf[10];
int hwstatus;
MODULE_GET;
if (cnt > 10) {
MODULE_PUT;
return cnt;
}
if (copy_from_user(databuf, buf, cnt)) {
MODULE_PUT;
return 0;
}
hwstatus = string_to_number(databuf);
switch (hwstatus) {
case HWReset:
PRINTM(MSG, "reset hw\n");
uap_soft_reset(priv);
priv->adapter->HardwareStatus = HWReset;
break;
default:
break;
}
MODULE_PUT;
return cnt;
}
/**
* @brief hwstatus proc read function
*
* @param page pointer to buffer
* @param s read data starting position
* @param off offset
* @param cnt counter
* @param eof end of file flag
* @param data data to output
* @return number of output data
*/
static int
uap_hwstatus_read(char *page, char **s, off_t off, int cnt, int *eof,
void *data)
{
char *p = page;
struct net_device *netdev = data;
uap_private *priv = (uap_private *) netdev_priv(netdev);
MODULE_GET;
p += sprintf(p, "%d\n", priv->adapter->HardwareStatus);
MODULE_PUT;
return p - page;
}
/********************************************************
Global Functions
********************************************************/
/**
* @brief create uap proc file
*
* @param priv pointer uap_private
* @param dev pointer net_device
* @return N/A
*/
void
uap_proc_entry(uap_private * priv, struct net_device *dev)
{
struct proc_dir_entry *r = PROC_DIR;
PRINTM(INFO, "Creating Proc Interface\n");
/* Check if uap directory already exists */
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26)
for (r = r->subdir; r; r = r->next) {
if (r->namelen && !strcmp("uap", r->name)) {
/* Directory exists */
PRINTM(WARN, "proc directory already exists!\n");
priv->proc_uap = r;
break;
}
}
#endif
if (!priv->proc_uap) {
priv->proc_uap = proc_mkdir("uap", PROC_DIR);
if (!priv->proc_uap)
return;
else
atomic_set(&priv->proc_uap->count, 1);
} else {
atomic_inc(&priv->proc_uap->count);
}
priv->proc_entry = proc_mkdir(dev->name, priv->proc_uap);
if (priv->proc_entry) {
r = create_proc_read_entry("info", 0, priv->proc_entry, uap_proc_read,
dev);
r = create_proc_entry("hwstatus", 0644, priv->proc_entry);
if (r) {
r->data = dev;
r->read_proc = uap_hwstatus_read;
r->write_proc = uap_hwstatus_write;
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30)
r->owner = THIS_MODULE;
#endif
} else
PRINTM(MSG, "Fail to create proc hwstatus\n");
}
}
/**
* @brief remove proc file
*
* @param priv pointer uap_private
* @return N/A
*/
void
uap_proc_remove(uap_private * priv)
{
if (priv->proc_uap) {
if (priv->proc_entry) {
remove_proc_entry("info", priv->proc_entry);
remove_proc_entry("hwstatus", priv->proc_entry);
}
remove_proc_entry(priv->uap_dev.netdev->name, priv->proc_uap);
atomic_dec(&priv->proc_uap->count);
if (atomic_read(&(priv->proc_uap->count)) == 0)
remove_proc_entry("uap", PROC_DIR);
}
}
/**
* @brief convert string to number
*
* @param s pointer to numbered string
* @return converted number from string s
*/
int
string_to_number(char *s)
{
int r = 0;
int base = 0;
int pn = 1;
if (strncmp(s, "-", 1) == 0) {
pn = -1;
s++;
}
if ((strncmp(s, "0x", 2) == 0) || (strncmp(s, "0X", 2) == 0)) {
base = 16;
s += 2;
} else
base = 10;
for (s = s; *s != 0; s++) {
if ((*s >= '0') && (*s <= '9'))
r = (r * base) + (*s - '0');
else if ((*s >= 'A') && (*s <= 'F'))
r = (r * base) + (*s - 'A' + 10);
else if ((*s >= 'a') && (*s <= 'f'))
r = (r * base) + (*s - 'a' + 10);
else
break;
}
return (r * pn);
}
#endif
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