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android_kernel_xiaomi_sm8350/drivers/net/wireless/bcm43xx/bcm43xx_wx.c
Michael Buesch 78ff56a06e [PATCH] bcm43xx: redesign locking 
Redesign the bcm43xx locking.
This is pre-work to get a preemptible periodic work handler.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-06-15 15:48:13 -04:00

1003 lines
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/*
Broadcom BCM43xx wireless driver
Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
Stefano Brivio <st3@riseup.net>
Michael Buesch <mbuesch@freenet.de>
Danny van Dyk <kugelfang@gentoo.org>
Andreas Jaggi <andreas.jaggi@waterwave.ch>
Some parts of the code in this file are derived from the ipw2200
driver Copyright(c) 2003 - 2004 Intel Corporation.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <linux/wireless.h>
#include <net/iw_handler.h>
#include <net/ieee80211softmac.h>
#include <net/ieee80211softmac_wx.h>
#include <linux/capability.h>
#include <linux/sched.h> /* for capable() */
#include <linux/delay.h>
#include "bcm43xx.h"
#include "bcm43xx_wx.h"
#include "bcm43xx_main.h"
#include "bcm43xx_radio.h"
#include "bcm43xx_phy.h"
/* The WIRELESS_EXT version, which is implemented by this driver. */
#define BCM43xx_WX_VERSION 18
#define MAX_WX_STRING 80
static int bcm43xx_wx_get_name(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
int i;
unsigned long flags;
struct bcm43xx_phyinfo *phy;
char suffix[7] = { 0 };
int have_a = 0, have_b = 0, have_g = 0;
bcm43xx_lock_irqsafe(bcm, flags);
for (i = 0; i < bcm->nr_80211_available; i++) {
phy = &(bcm->core_80211_ext[i].phy);
switch (phy->type) {
case BCM43xx_PHYTYPE_A:
have_a = 1;
break;
case BCM43xx_PHYTYPE_G:
have_g = 1;
case BCM43xx_PHYTYPE_B:
have_b = 1;
break;
default:
assert(0);
}
}
bcm43xx_unlock_irqsafe(bcm, flags);
i = 0;
if (have_a) {
suffix[i++] = 'a';
suffix[i++] = '/';
}
if (have_b) {
suffix[i++] = 'b';
suffix[i++] = '/';
}
if (have_g) {
suffix[i++] = 'g';
suffix[i++] = '/';
}
if (i != 0)
suffix[i - 1] = '\0';
snprintf(data->name, IFNAMSIZ, "IEEE 802.11%s", suffix);
return 0;
}
static int bcm43xx_wx_set_channelfreq(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
unsigned long flags;
u8 channel;
int freq;
int err = -EINVAL;
bcm43xx_lock_irqsafe(bcm, flags);
if ((data->freq.m >= 0) && (data->freq.m <= 1000)) {
channel = data->freq.m;
freq = bcm43xx_channel_to_freq(bcm, channel);
} else {
channel = bcm43xx_freq_to_channel(bcm, data->freq.m);
freq = data->freq.m;
}
if (!bcm43xx_is_valid_channel(bcm, channel))
goto out_unlock;
if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED) {
//ieee80211softmac_disassoc(softmac, $REASON);
bcm43xx_mac_suspend(bcm);
err = bcm43xx_radio_selectchannel(bcm, channel, 0);
bcm43xx_mac_enable(bcm);
} else {
bcm43xx_current_radio(bcm)->initial_channel = channel;
err = 0;
}
out_unlock:
bcm43xx_unlock_irqsafe(bcm, flags);
return err;
}
static int bcm43xx_wx_get_channelfreq(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
struct bcm43xx_radioinfo *radio;
unsigned long flags;
int err = -ENODEV;
u16 channel;
bcm43xx_lock_irqsafe(bcm, flags);
radio = bcm43xx_current_radio(bcm);
channel = radio->channel;
if (channel == 0xFF) {
channel = radio->initial_channel;
if (channel == 0xFF)
goto out_unlock;
}
assert(channel > 0 && channel <= 1000);
data->freq.e = 1;
data->freq.m = bcm43xx_channel_to_freq(bcm, channel) * 100000;
data->freq.flags = 1;
err = 0;
out_unlock:
bcm43xx_unlock_irqsafe(bcm, flags);
return err;
}
static int bcm43xx_wx_set_mode(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
unsigned long flags;
int mode;
mode = data->mode;
if (mode == IW_MODE_AUTO)
mode = BCM43xx_INITIAL_IWMODE;
bcm43xx_lock_irqsafe(bcm, flags);
if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED) {
if (bcm->ieee->iw_mode != mode)
bcm43xx_set_iwmode(bcm, mode);
} else
bcm->ieee->iw_mode = mode;
bcm43xx_unlock_irqsafe(bcm, flags);
return 0;
}
static int bcm43xx_wx_get_mode(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
unsigned long flags;
bcm43xx_lock_irqsafe(bcm, flags);
data->mode = bcm->ieee->iw_mode;
bcm43xx_unlock_irqsafe(bcm, flags);
return 0;
}
static int bcm43xx_wx_get_rangeparams(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
struct iw_range *range = (struct iw_range *)extra;
const struct ieee80211_geo *geo;
unsigned long flags;
int i, j;
struct bcm43xx_phyinfo *phy;
data->data.length = sizeof(*range);
memset(range, 0, sizeof(*range));
//TODO: What about 802.11b?
/* 54Mb/s == ~27Mb/s payload throughput (802.11g) */
range->throughput = 27 * 1000 * 1000;
range->max_qual.qual = 100;
/* TODO: Real max RSSI */
range->max_qual.level = 3;
range->max_qual.noise = 100;
range->max_qual.updated = 7;
range->avg_qual.qual = 70;
range->avg_qual.level = 2;
range->avg_qual.noise = 40;
range->avg_qual.updated = 7;
range->min_rts = BCM43xx_MIN_RTS_THRESHOLD;
range->max_rts = BCM43xx_MAX_RTS_THRESHOLD;
range->min_frag = MIN_FRAG_THRESHOLD;
range->max_frag = MAX_FRAG_THRESHOLD;
range->encoding_size[0] = 5;
range->encoding_size[1] = 13;
range->num_encoding_sizes = 2;
range->max_encoding_tokens = WEP_KEYS;
range->we_version_compiled = WIRELESS_EXT;
range->we_version_source = BCM43xx_WX_VERSION;
range->enc_capa = IW_ENC_CAPA_WPA |
IW_ENC_CAPA_WPA2 |
IW_ENC_CAPA_CIPHER_TKIP |
IW_ENC_CAPA_CIPHER_CCMP;
bcm43xx_lock_irqsafe(bcm, flags);
phy = bcm43xx_current_phy(bcm);
range->num_bitrates = 0;
i = 0;
if (phy->type == BCM43xx_PHYTYPE_A ||
phy->type == BCM43xx_PHYTYPE_G) {
range->num_bitrates = 8;
range->bitrate[i++] = IEEE80211_OFDM_RATE_6MB;
range->bitrate[i++] = IEEE80211_OFDM_RATE_9MB;
range->bitrate[i++] = IEEE80211_OFDM_RATE_12MB;
range->bitrate[i++] = IEEE80211_OFDM_RATE_18MB;
range->bitrate[i++] = IEEE80211_OFDM_RATE_24MB;
range->bitrate[i++] = IEEE80211_OFDM_RATE_36MB;
range->bitrate[i++] = IEEE80211_OFDM_RATE_48MB;
range->bitrate[i++] = IEEE80211_OFDM_RATE_54MB;
}
if (phy->type == BCM43xx_PHYTYPE_B ||
phy->type == BCM43xx_PHYTYPE_G) {
range->num_bitrates += 4;
range->bitrate[i++] = IEEE80211_CCK_RATE_1MB;
range->bitrate[i++] = IEEE80211_CCK_RATE_2MB;
range->bitrate[i++] = IEEE80211_CCK_RATE_5MB;
range->bitrate[i++] = IEEE80211_CCK_RATE_11MB;
}
geo = ieee80211_get_geo(bcm->ieee);
range->num_channels = geo->a_channels + geo->bg_channels;
j = 0;
for (i = 0; i < geo->a_channels; i++) {
if (j == IW_MAX_FREQUENCIES)
break;
range->freq[j].i = j + 1;
range->freq[j].m = geo->a[i].freq;//FIXME?
range->freq[j].e = 1;
j++;
}
for (i = 0; i < geo->bg_channels; i++) {
if (j == IW_MAX_FREQUENCIES)
break;
range->freq[j].i = j + 1;
range->freq[j].m = geo->bg[i].freq;//FIXME?
range->freq[j].e = 1;
j++;
}
range->num_frequency = j;
bcm43xx_unlock_irqsafe(bcm, flags);
return 0;
}
static int bcm43xx_wx_set_nick(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
size_t len;
bcm43xx_lock_noirq(bcm);
len = min((size_t)data->data.length, (size_t)IW_ESSID_MAX_SIZE);
memcpy(bcm->nick, extra, len);
bcm->nick[len] = '\0';
bcm43xx_unlock_noirq(bcm);
return 0;
}
static int bcm43xx_wx_get_nick(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
size_t len;
bcm43xx_lock_noirq(bcm);
len = strlen(bcm->nick) + 1;
memcpy(extra, bcm->nick, len);
data->data.length = (__u16)len;
data->data.flags = 1;
bcm43xx_unlock_noirq(bcm);
return 0;
}
static int bcm43xx_wx_set_rts(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
unsigned long flags;
int err = -EINVAL;
bcm43xx_lock_irqsafe(bcm, flags);
if (data->rts.disabled) {
bcm->rts_threshold = BCM43xx_MAX_RTS_THRESHOLD;
err = 0;
} else {
if (data->rts.value >= BCM43xx_MIN_RTS_THRESHOLD &&
data->rts.value <= BCM43xx_MAX_RTS_THRESHOLD) {
bcm->rts_threshold = data->rts.value;
err = 0;
}
}
bcm43xx_unlock_irqsafe(bcm, flags);
return err;
}
static int bcm43xx_wx_get_rts(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
unsigned long flags;
bcm43xx_lock_irqsafe(bcm, flags);
data->rts.value = bcm->rts_threshold;
data->rts.fixed = 0;
data->rts.disabled = (bcm->rts_threshold == BCM43xx_MAX_RTS_THRESHOLD);
bcm43xx_unlock_irqsafe(bcm, flags);
return 0;
}
static int bcm43xx_wx_set_frag(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
unsigned long flags;
int err = -EINVAL;
bcm43xx_lock_irqsafe(bcm, flags);
if (data->frag.disabled) {
bcm->ieee->fts = MAX_FRAG_THRESHOLD;
err = 0;
} else {
if (data->frag.value >= MIN_FRAG_THRESHOLD &&
data->frag.value <= MAX_FRAG_THRESHOLD) {
bcm->ieee->fts = data->frag.value & ~0x1;
err = 0;
}
}
bcm43xx_unlock_irqsafe(bcm, flags);
return err;
}
static int bcm43xx_wx_get_frag(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
unsigned long flags;
bcm43xx_lock_irqsafe(bcm, flags);
data->frag.value = bcm->ieee->fts;
data->frag.fixed = 0;
data->frag.disabled = (bcm->ieee->fts == MAX_FRAG_THRESHOLD);
bcm43xx_unlock_irqsafe(bcm, flags);
return 0;
}
static int bcm43xx_wx_set_xmitpower(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
struct bcm43xx_radioinfo *radio;
struct bcm43xx_phyinfo *phy;
unsigned long flags;
int err = -ENODEV;
u16 maxpower;
if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) {
printk(PFX KERN_ERR "TX power not in dBm.\n");
return -EOPNOTSUPP;
}
bcm43xx_lock_irqsafe(bcm, flags);
if (bcm43xx_status(bcm) != BCM43xx_STAT_INITIALIZED)
goto out_unlock;
radio = bcm43xx_current_radio(bcm);
phy = bcm43xx_current_phy(bcm);
if (data->txpower.disabled != (!(radio->enabled))) {
if (data->txpower.disabled)
bcm43xx_radio_turn_off(bcm);
else
bcm43xx_radio_turn_on(bcm);
}
if (data->txpower.value > 0) {
/* desired and maxpower dBm values are in Q5.2 */
if (phy->type == BCM43xx_PHYTYPE_A)
maxpower = bcm->sprom.maxpower_aphy;
else
maxpower = bcm->sprom.maxpower_bgphy;
radio->txpower_desired = limit_value(data->txpower.value << 2,
0, maxpower);
bcm43xx_phy_xmitpower(bcm);
}
err = 0;
out_unlock:
bcm43xx_unlock_irqsafe(bcm, flags);
return err;
}
static int bcm43xx_wx_get_xmitpower(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
struct bcm43xx_radioinfo *radio;
unsigned long flags;
int err = -ENODEV;
bcm43xx_lock_irqsafe(bcm, flags);
if (bcm43xx_status(bcm) != BCM43xx_STAT_INITIALIZED)
goto out_unlock;
radio = bcm43xx_current_radio(bcm);
/* desired dBm value is in Q5.2 */
data->txpower.value = radio->txpower_desired >> 2;
data->txpower.fixed = 1;
data->txpower.flags = IW_TXPOW_DBM;
data->txpower.disabled = !(radio->enabled);
err = 0;
out_unlock:
bcm43xx_unlock_irqsafe(bcm, flags);
return err;
}
static int bcm43xx_wx_set_encoding(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
int err;
err = ieee80211_wx_set_encode(bcm->ieee, info, data, extra);
return err;
}
static int bcm43xx_wx_set_encodingext(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
int err;
err = ieee80211_wx_set_encodeext(bcm->ieee, info, data, extra);
return err;
}
static int bcm43xx_wx_get_encoding(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
int err;
err = ieee80211_wx_get_encode(bcm->ieee, info, data, extra);
return err;
}
static int bcm43xx_wx_get_encodingext(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
int err;
err = ieee80211_wx_get_encodeext(bcm->ieee, info, data, extra);
return err;
}
static int bcm43xx_wx_set_interfmode(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
unsigned long flags;
int mode, err = 0;
mode = *((int *)extra);
switch (mode) {
case 0:
mode = BCM43xx_RADIO_INTERFMODE_NONE;
break;
case 1:
mode = BCM43xx_RADIO_INTERFMODE_NONWLAN;
break;
case 2:
mode = BCM43xx_RADIO_INTERFMODE_MANUALWLAN;
break;
case 3:
mode = BCM43xx_RADIO_INTERFMODE_AUTOWLAN;
break;
default:
printk(KERN_ERR PFX "set_interfmode allowed parameters are: "
"0 => None, 1 => Non-WLAN, 2 => WLAN, "
"3 => Auto-WLAN\n");
return -EINVAL;
}
bcm43xx_lock_irqsafe(bcm, flags);
if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED) {
err = bcm43xx_radio_set_interference_mitigation(bcm, mode);
if (err) {
printk(KERN_ERR PFX "Interference Mitigation not "
"supported by device\n");
}
} else {
if (mode == BCM43xx_RADIO_INTERFMODE_AUTOWLAN) {
printk(KERN_ERR PFX "Interference Mitigation mode Auto-WLAN "
"not supported while the interface is down.\n");
err = -ENODEV;
} else
bcm43xx_current_radio(bcm)->interfmode = mode;
}
bcm43xx_unlock_irqsafe(bcm, flags);
return err;
}
static int bcm43xx_wx_get_interfmode(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
unsigned long flags;
int mode;
bcm43xx_lock_irqsafe(bcm, flags);
mode = bcm43xx_current_radio(bcm)->interfmode;
bcm43xx_unlock_irqsafe(bcm, flags);
switch (mode) {
case BCM43xx_RADIO_INTERFMODE_NONE:
strncpy(extra, "0 (No Interference Mitigation)", MAX_WX_STRING);
break;
case BCM43xx_RADIO_INTERFMODE_NONWLAN:
strncpy(extra, "1 (Non-WLAN Interference Mitigation)", MAX_WX_STRING);
break;
case BCM43xx_RADIO_INTERFMODE_MANUALWLAN:
strncpy(extra, "2 (WLAN Interference Mitigation)", MAX_WX_STRING);
break;
default:
assert(0);
}
data->data.length = strlen(extra) + 1;
return 0;
}
static int bcm43xx_wx_set_shortpreamble(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
unsigned long flags;
int on;
on = *((int *)extra);
bcm43xx_lock_irqsafe(bcm, flags);
bcm->short_preamble = !!on;
bcm43xx_unlock_irqsafe(bcm, flags);
return 0;
}
static int bcm43xx_wx_get_shortpreamble(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
unsigned long flags;
int on;
bcm43xx_lock_irqsafe(bcm, flags);
on = bcm->short_preamble;
bcm43xx_unlock_irqsafe(bcm, flags);
if (on)
strncpy(extra, "1 (Short Preamble enabled)", MAX_WX_STRING);
else
strncpy(extra, "0 (Short Preamble disabled)", MAX_WX_STRING);
data->data.length = strlen(extra) + 1;
return 0;
}
static int bcm43xx_wx_set_swencryption(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
unsigned long flags;
int on;
on = *((int *)extra);
bcm43xx_lock_irqsafe(bcm, flags);
bcm->ieee->host_encrypt = !!on;
bcm->ieee->host_decrypt = !!on;
bcm->ieee->host_build_iv = !on;
bcm43xx_unlock_irqsafe(bcm, flags);
return 0;
}
static int bcm43xx_wx_get_swencryption(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
unsigned long flags;
int on;
bcm43xx_lock_irqsafe(bcm, flags);
on = bcm->ieee->host_encrypt;
bcm43xx_unlock_irqsafe(bcm, flags);
if (on)
strncpy(extra, "1 (SW encryption enabled) ", MAX_WX_STRING);
else
strncpy(extra, "0 (SW encryption disabled) ", MAX_WX_STRING);
data->data.length = strlen(extra + 1);
return 0;
}
/* Enough buffer to hold a hexdump of the sprom data. */
#define SPROM_BUFFERSIZE 512
static int sprom2hex(const u16 *sprom, char *dump)
{
int i, pos = 0;
for (i = 0; i < BCM43xx_SPROM_SIZE; i++) {
pos += snprintf(dump + pos, SPROM_BUFFERSIZE - pos - 1,
"%04X", swab16(sprom[i]) & 0xFFFF);
}
return pos + 1;
}
static int hex2sprom(u16 *sprom, const char *dump, unsigned int len)
{
char tmp[5] = { 0 };
int cnt = 0;
unsigned long parsed;
if (len < BCM43xx_SPROM_SIZE * sizeof(u16) * 2)
return -EINVAL;
while (cnt < BCM43xx_SPROM_SIZE) {
memcpy(tmp, dump, 4);
dump += 4;
parsed = simple_strtoul(tmp, NULL, 16);
sprom[cnt++] = swab16((u16)parsed);
}
return 0;
}
static int bcm43xx_wx_sprom_read(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
int err = -EPERM;
u16 *sprom;
unsigned long flags;
if (!capable(CAP_SYS_RAWIO))
goto out;
err = -ENOMEM;
sprom = kmalloc(BCM43xx_SPROM_SIZE * sizeof(*sprom),
GFP_KERNEL);
if (!sprom)
goto out;
bcm43xx_lock_irqsafe(bcm, flags);
err = -ENODEV;
if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED)
err = bcm43xx_sprom_read(bcm, sprom);
bcm43xx_unlock_irqsafe(bcm, flags);
if (!err)
data->data.length = sprom2hex(sprom, extra);
kfree(sprom);
out:
return err;
}
static int bcm43xx_wx_sprom_write(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
int err = -EPERM;
u16 *sprom;
unsigned long flags;
char *input;
unsigned int len;
if (!capable(CAP_SYS_RAWIO))
goto out;
err = -ENOMEM;
sprom = kmalloc(BCM43xx_SPROM_SIZE * sizeof(*sprom),
GFP_KERNEL);
if (!sprom)
goto out;
len = data->data.length;
extra[len - 1] = '\0';
input = strchr(extra, ':');
if (input) {
input++;
len -= input - extra;
} else
input = extra;
err = hex2sprom(sprom, input, len);
if (err)
goto out_kfree;
bcm43xx_lock_irqsafe(bcm, flags);
err = -ENODEV;
if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED)
err = bcm43xx_sprom_write(bcm, sprom);
bcm43xx_unlock_irqsafe(bcm, flags);
out_kfree:
kfree(sprom);
out:
return err;
}
/* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
static struct iw_statistics *bcm43xx_get_wireless_stats(struct net_device *net_dev)
{
struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
struct ieee80211softmac_device *mac = ieee80211_priv(net_dev);
struct iw_statistics *wstats;
wstats = &bcm->stats.wstats;
if (!mac->associated) {
wstats->miss.beacon = 0;
// bcm->ieee->ieee_stats.tx_retry_limit_exceeded = 0; // FIXME: should this be cleared here?
wstats->discard.retries = 0;
// bcm->ieee->ieee_stats.tx_discards_wrong_sa = 0; // FIXME: same question
wstats->discard.nwid = 0;
// bcm->ieee->ieee_stats.rx_discards_undecryptable = 0; // FIXME: ditto
wstats->discard.code = 0;
// bcm->ieee->ieee_stats.rx_fragments = 0; // FIXME: same here
wstats->discard.fragment = 0;
wstats->discard.misc = 0;
wstats->qual.qual = 0;
wstats->qual.level = 0;
wstats->qual.noise = 0;
wstats->qual.updated = 7;
wstats->qual.updated |= IW_QUAL_NOISE_INVALID |
IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID;
return wstats;
}
/* fill in the real statistics when iface associated */
wstats->qual.qual = 100; // TODO: get the real signal quality
wstats->qual.level = 3 - bcm->stats.link_quality;
wstats->qual.noise = bcm->stats.noise;
wstats->qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED |
IW_QUAL_NOISE_UPDATED;
wstats->discard.code = bcm->ieee->ieee_stats.rx_discards_undecryptable;
wstats->discard.retries = bcm->ieee->ieee_stats.tx_retry_limit_exceeded;
wstats->discard.nwid = bcm->ieee->ieee_stats.tx_discards_wrong_sa;
wstats->discard.fragment = bcm->ieee->ieee_stats.rx_fragments;
wstats->discard.misc = 0; // FIXME
wstats->miss.beacon = 0; // FIXME
return wstats;
}
#ifdef WX
# undef WX
#endif
#define WX(ioctl) [(ioctl) - SIOCSIWCOMMIT]
static const iw_handler bcm43xx_wx_handlers[] = {
/* Wireless Identification */
WX(SIOCGIWNAME) = bcm43xx_wx_get_name,
/* Basic operations */
WX(SIOCSIWFREQ) = bcm43xx_wx_set_channelfreq,
WX(SIOCGIWFREQ) = bcm43xx_wx_get_channelfreq,
WX(SIOCSIWMODE) = bcm43xx_wx_set_mode,
WX(SIOCGIWMODE) = bcm43xx_wx_get_mode,
/* Informative stuff */
WX(SIOCGIWRANGE) = bcm43xx_wx_get_rangeparams,
/* Access Point manipulation */
WX(SIOCSIWAP) = ieee80211softmac_wx_set_wap,
WX(SIOCGIWAP) = ieee80211softmac_wx_get_wap,
WX(SIOCSIWSCAN) = ieee80211softmac_wx_trigger_scan,
WX(SIOCGIWSCAN) = ieee80211softmac_wx_get_scan_results,
/* 802.11 specific support */
WX(SIOCSIWESSID) = ieee80211softmac_wx_set_essid,
WX(SIOCGIWESSID) = ieee80211softmac_wx_get_essid,
WX(SIOCSIWNICKN) = bcm43xx_wx_set_nick,
WX(SIOCGIWNICKN) = bcm43xx_wx_get_nick,
/* Other parameters */
WX(SIOCSIWRATE) = ieee80211softmac_wx_set_rate,
WX(SIOCGIWRATE) = ieee80211softmac_wx_get_rate,
WX(SIOCSIWRTS) = bcm43xx_wx_set_rts,
WX(SIOCGIWRTS) = bcm43xx_wx_get_rts,
WX(SIOCSIWFRAG) = bcm43xx_wx_set_frag,
WX(SIOCGIWFRAG) = bcm43xx_wx_get_frag,
WX(SIOCSIWTXPOW) = bcm43xx_wx_set_xmitpower,
WX(SIOCGIWTXPOW) = bcm43xx_wx_get_xmitpower,
//TODO WX(SIOCSIWRETRY) = bcm43xx_wx_set_retry,
//TODO WX(SIOCGIWRETRY) = bcm43xx_wx_get_retry,
/* Encoding */
WX(SIOCSIWENCODE) = bcm43xx_wx_set_encoding,
WX(SIOCGIWENCODE) = bcm43xx_wx_get_encoding,
WX(SIOCSIWENCODEEXT) = bcm43xx_wx_set_encodingext,
WX(SIOCGIWENCODEEXT) = bcm43xx_wx_get_encodingext,
/* Power saving */
//TODO WX(SIOCSIWPOWER) = bcm43xx_wx_set_power,
//TODO WX(SIOCGIWPOWER) = bcm43xx_wx_get_power,
WX(SIOCSIWGENIE) = ieee80211softmac_wx_set_genie,
WX(SIOCGIWGENIE) = ieee80211softmac_wx_get_genie,
WX(SIOCSIWAUTH) = ieee80211_wx_set_auth,
WX(SIOCGIWAUTH) = ieee80211_wx_get_auth,
};
#undef WX
static const iw_handler bcm43xx_priv_wx_handlers[] = {
/* Set Interference Mitigation Mode. */
bcm43xx_wx_set_interfmode,
/* Get Interference Mitigation Mode. */
bcm43xx_wx_get_interfmode,
/* Enable/Disable Short Preamble mode. */
bcm43xx_wx_set_shortpreamble,
/* Get Short Preamble mode. */
bcm43xx_wx_get_shortpreamble,
/* Enable/Disable Software Encryption mode */
bcm43xx_wx_set_swencryption,
/* Get Software Encryption mode */
bcm43xx_wx_get_swencryption,
/* Write SRPROM data. */
bcm43xx_wx_sprom_write,
/* Read SPROM data. */
bcm43xx_wx_sprom_read,
};
#define PRIV_WX_SET_INTERFMODE (SIOCIWFIRSTPRIV + 0)
#define PRIV_WX_GET_INTERFMODE (SIOCIWFIRSTPRIV + 1)
#define PRIV_WX_SET_SHORTPREAMBLE (SIOCIWFIRSTPRIV + 2)
#define PRIV_WX_GET_SHORTPREAMBLE (SIOCIWFIRSTPRIV + 3)
#define PRIV_WX_SET_SWENCRYPTION (SIOCIWFIRSTPRIV + 4)
#define PRIV_WX_GET_SWENCRYPTION (SIOCIWFIRSTPRIV + 5)
#define PRIV_WX_SPROM_WRITE (SIOCIWFIRSTPRIV + 6)
#define PRIV_WX_SPROM_READ (SIOCIWFIRSTPRIV + 7)
#define PRIV_WX_DUMMY(ioctl) \
{ \
.cmd = (ioctl), \
.name = "__unused" \
}
static const struct iw_priv_args bcm43xx_priv_wx_args[] = {
{
.cmd = PRIV_WX_SET_INTERFMODE,
.set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
.name = "set_interfmode",
},
{
.cmd = PRIV_WX_GET_INTERFMODE,
.get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
.name = "get_interfmode",
},
{
.cmd = PRIV_WX_SET_SHORTPREAMBLE,
.set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
.name = "set_shortpreamb",
},
{
.cmd = PRIV_WX_GET_SHORTPREAMBLE,
.get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
.name = "get_shortpreamb",
},
{
.cmd = PRIV_WX_SET_SWENCRYPTION,
.set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
.name = "set_swencrypt",
},
{
.cmd = PRIV_WX_GET_SWENCRYPTION,
.get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
.name = "get_swencrypt",
},
{
.cmd = PRIV_WX_SPROM_WRITE,
.set_args = IW_PRIV_TYPE_CHAR | SPROM_BUFFERSIZE,
.name = "write_sprom",
},
{
.cmd = PRIV_WX_SPROM_READ,
.get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | SPROM_BUFFERSIZE,
.name = "read_sprom",
},
};
const struct iw_handler_def bcm43xx_wx_handlers_def = {
.standard = bcm43xx_wx_handlers,
.num_standard = ARRAY_SIZE(bcm43xx_wx_handlers),
.num_private = ARRAY_SIZE(bcm43xx_priv_wx_handlers),
.num_private_args = ARRAY_SIZE(bcm43xx_priv_wx_args),
.private = bcm43xx_priv_wx_handlers,
.private_args = bcm43xx_priv_wx_args,
.get_wireless_stats = bcm43xx_get_wireless_stats,
};
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