static int ieee80211_ioctl_siwfrag(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *frag, char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
if (frag->disabled)
local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
else if (frag->value < 256 ||
frag->value > IEEE80211_MAX_FRAG_THRESHOLD)
return -EINVAL;
else {
/* Fragment length must be even, so strip LSB. */
local->fragmentation_threshold = frag->value & ~0x1;
}
/* If the wlan card performs fragmentation in hardware/firmware,
* configure it here */
if (local->ops->set_frag_threshold)
local->ops->set_frag_threshold(
local_to_hw(local),
local->fragmentation_threshold);
return 0;
}
static int ieee80211_ioctl_siwrts(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *rts, char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
if (rts->disabled)
local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
else if (!rts->fixed)
/* if the rts value is not fixed, then take default */
local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD)
return -EINVAL;
else
local->rts_threshold = rts->value;
/* If the wlan card performs RTS/CTS in hardware/firmware,
* configure it here */
if (local->ops->set_rts_threshold)
local->ops->set_rts_threshold(local_to_hw(local),
local->rts_threshold);
return 0;
}
static int ieee80211_ioctl_siwretry(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *retry, char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
if (retry->disabled ||
(retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
return -EINVAL;
if (retry->flags & IW_RETRY_MAX)
local->long_retry_limit = retry->value;
else if (retry->flags & IW_RETRY_MIN)
local->short_retry_limit = retry->value;
else {
local->long_retry_limit = retry->value;
local->short_retry_limit = retry->value;
}
if (local->ops->set_retry_limit) {
return local->ops->set_retry_limit(
local_to_hw(local),
local->short_retry_limit,
local->long_retry_limit);
}
return 0;
}
static int ieee80211_ioctl_giwrate(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *rate, char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct sta_info *sta;
struct ieee80211_sub_if_data *sdata;
struct ieee80211_supported_band *sband;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
sta = sta_info_get(local, sdata->u.sta.bssid);
else
return -EOPNOTSUPP;
if (!sta)
return -ENODEV;
sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
if (sta->txrate_idx < sband->n_bitrates)
rate->value = sband->bitrates[sta->txrate_idx].bitrate;
else
rate->value = 0;
rate->value *= 100000;
return 0;
}
/* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct iw_statistics *wstats = &local->wstats;
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct sta_info *sta = NULL;
rcu_read_lock();
if (sdata->vif.type == NL80211_IFTYPE_STATION ||
sdata->vif.type == NL80211_IFTYPE_ADHOC)
sta = sta_info_get(local, sdata->u.sta.bssid);
if (!sta) {
wstats->discard.fragment = 0;
wstats->discard.misc = 0;
wstats->qual.qual = 0;
wstats->qual.level = 0;
wstats->qual.noise = 0;
wstats->qual.updated = IW_QUAL_ALL_INVALID;
} else {
wstats->qual.level = sta->last_signal;
wstats->qual.qual = sta->last_qual;
wstats->qual.noise = sta->last_noise;
wstats->qual.updated = local->wstats_flags;
}
rcu_read_unlock();
return wstats;
}
static int ieee80211_ioctl_giwrate(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *rate, char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct sta_info *sta;
struct ieee80211_sub_if_data *sdata;
struct ieee80211_supported_band *sband;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (sdata->vif.type != NL80211_IFTYPE_STATION)
return -EOPNOTSUPP;
sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
rcu_read_lock();
sta = sta_info_get(local, sdata->u.sta.bssid);
if (sta && !(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS))
rate->value = sband->bitrates[sta->last_tx_rate.idx].bitrate;
else
rate->value = 0;
rcu_read_unlock();
if (!sta)
return -ENODEV;
rate->value *= 100000;
return 0;
}
static int ieee80211_ioctl_siwfreq(struct net_device *dev,
struct iw_request_info *info,
struct iw_freq *freq, char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
/* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
if (freq->e == 0) {
if (freq->m < 0) {
if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
sdata->u.sta.flags |=
IEEE80211_STA_AUTO_CHANNEL_SEL;
return 0;
} else
return ieee80211_set_freq(local,
ieee80211_channel_to_frequency(freq->m));
} else {
int i, div = 1000000;
for (i = 0; i < freq->e; i++)
div /= 10;
if (div > 0)
return ieee80211_set_freq(local, freq->m / div);
else
return -EINVAL;
}
}
static int ieee80211_ioctl_siwpower(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *wrq,
char *extra)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_conf *conf = &local->hw.conf;
int ret = 0, timeout = 0;
bool ps;
if (sdata->vif.type != NL80211_IFTYPE_STATION)
return -EINVAL;
if (wrq->disabled) {
ps = false;
timeout = 0;
goto set;
}
switch (wrq->flags & IW_POWER_MODE) {
case IW_POWER_ON: /* If not specified */
case IW_POWER_MODE: /* If set all mask */
case IW_POWER_ALL_R: /* If explicitely state all */
ps = true;
break;
default: /* Otherwise we ignore */
break;
}
if (wrq->flags & IW_POWER_TIMEOUT)
timeout = wrq->value / 1000;
set:
if (ps == local->powersave && timeout == local->dynamic_ps_timeout)
return ret;
local->powersave = ps;
local->dynamic_ps_timeout = timeout;
if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) {
if (!(local->hw.flags & IEEE80211_HW_NO_STACK_DYNAMIC_PS) &&
local->dynamic_ps_timeout > 0)
mod_timer(&local->dynamic_ps_timer, jiffies +
msecs_to_jiffies(local->dynamic_ps_timeout));
else {
if (local->powersave)
conf->flags |= IEEE80211_CONF_PS;
else
conf->flags &= ~IEEE80211_CONF_PS;
}
ret = ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
}
return ret;
}
static int ieee80211_ioctl_giwfreq(struct net_device *dev,
struct iw_request_info *info,
struct iw_freq *freq, char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
freq->m = local->hw.conf.channel->center_freq;
freq->e = 6;
return 0;
}
static int ieee80211_ioctl_giwpower(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *wrqu,
char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
wrqu->power.disabled = !local->powersave;
return 0;
}
static int ieee80211_ioctl_giwrts(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *rts, char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
rts->value = local->rts_threshold;
rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD);
rts->fixed = 1;
return 0;
}
static int ieee80211_ioctl_giwfrag(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *frag, char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
frag->value = local->fragmentation_threshold;
frag->disabled = (frag->value >= IEEE80211_MAX_RTS_THRESHOLD);
frag->fixed = 1;
return 0;
}
static int ieee80211_ioctl_giwtxpower(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
data->txpower.fixed = 1;
data->txpower.disabled = !(local->hw.conf.radio_enabled);
data->txpower.value = local->hw.conf.power_level;
data->txpower.flags = IW_TXPOW_DBM;
return 0;
}
static struct ieee80211_rate *
rate_control_simple_get_rate(void *priv, struct net_device *dev,
struct sk_buff *skb,
struct rate_control_extra *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_sub_if_data *sdata;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct ieee80211_hw_mode *mode = extra->mode;
struct sta_info *sta;
int rateidx, nonerp_idx;
u16 fc;
memset(extra, 0, sizeof(*extra));
fc = le16_to_cpu(hdr->frame_control);
if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
(hdr->addr1[0] & 0x01)) {
/* Send management frames and broadcast/multicast data using
* lowest rate. */
/* TODO: this could probably be improved.. */
return rate_control_lowest_rate(local, mode);
}
sta = sta_info_get(local, hdr->addr1);
if (!sta)
return rate_control_lowest_rate(local, mode);
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (sdata->bss && sdata->bss->force_unicast_rateidx > -1)
sta->txrate = sdata->bss->force_unicast_rateidx;
rateidx = sta->txrate;
if (rateidx >= mode->num_rates)
rateidx = mode->num_rates - 1;
sta->last_txrate = rateidx;
nonerp_idx = rateidx;
while (nonerp_idx > 0 &&
((mode->rates[nonerp_idx].flags & IEEE80211_RATE_ERP) ||
!(mode->rates[nonerp_idx].flags & IEEE80211_RATE_SUPPORTED) ||
!(sta->supp_rates & BIT(nonerp_idx))))
nonerp_idx--;
extra->nonerp = &mode->rates[nonerp_idx];
sta_info_put(sta);
return &mode->rates[rateidx];
}
struct ath6kl *ath6kl_core_alloc(struct device *sdev)
{
struct net_device *dev;
struct ath6kl *ar;
struct wireless_dev *wdev;
wdev = ath6kl_cfg80211_init(sdev);
if (!wdev) {
ath6kl_err("ath6kl_cfg80211_init failed\n");
return NULL;
}
ar = wdev_priv(wdev);
ar->dev = sdev;
ar->wdev = wdev;
wdev->iftype = NL80211_IFTYPE_STATION;
dev = alloc_netdev(0, "wlan%d", ether_setup);
if (!dev) {
ath6kl_err("no memory for network device instance\n");
ath6kl_cfg80211_deinit(ar);
return NULL;
}
dev->ieee80211_ptr = wdev;
SET_NETDEV_DEV(dev, wiphy_dev(wdev->wiphy));
wdev->netdev = dev;
ar->sme_state = SME_DISCONNECTED;
ar->auto_auth_stage = AUTH_IDLE;
init_netdev(dev);
ar->net_dev = dev;
set_bit(WLAN_ENABLED, &ar->flag);
ar->wlan_pwr_state = WLAN_POWER_STATE_ON;
spin_lock_init(&ar->lock);
ath6kl_init_control_info(ar);
init_waitqueue_head(&ar->event_wq);
sema_init(&ar->sem, 1);
clear_bit(DESTROY_IN_PROGRESS, &ar->flag);
INIT_LIST_HEAD(&ar->amsdu_rx_buffer_queue);
setup_timer(&ar->disconnect_timer, disconnect_timer_handler,
(unsigned long) dev);
return ar;
}
static void rate_control_pid_get_rate(void *priv, struct net_device *dev,
struct ieee80211_supported_band *sband,
struct sk_buff *skb,
struct rate_selection *sel)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct ieee80211_sub_if_data *sdata;
struct sta_info *sta;
int rateidx;
u16 fc;
rcu_read_lock();
sta = sta_info_get(local, hdr->addr1);
/* Send management frames and broadcast/multicast data using lowest
* rate. */
fc = le16_to_cpu(hdr->frame_control);
if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
is_multicast_ether_addr(hdr->addr1) || !sta) {
sel->rate = rate_lowest(local, sband, sta);
rcu_read_unlock();
return;
}
/* If a forced rate is in effect, select it. */
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (sdata->bss && sdata->bss->force_unicast_rateidx > -1)
sta->txrate_idx = sdata->bss->force_unicast_rateidx;
rateidx = sta->txrate_idx;
if (rateidx >= sband->n_bitrates)
rateidx = sband->n_bitrates - 1;
sta->last_txrate_idx = rateidx;
rcu_read_unlock();
sel->rate = &sband->bitrates[rateidx];
#ifdef CONFIG_MAC80211_DEBUGFS
rate_control_pid_event_tx_rate(
&((struct rc_pid_sta_info *) sta->rate_ctrl_priv)->events,
rateidx, sband->bitrates[rateidx].bitrate);
#endif
}
static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bool need_reconfig = 0;
int new_power_level;
if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
return -EINVAL;
if (data->txpower.flags & IW_TXPOW_RANGE)
return -EINVAL;
if (data->txpower.fixed) {
new_power_level = data->txpower.value;
} else {
/*
* Automatic power level. Use maximum power for the current
* channel. Should be part of rate control.
*/
struct ieee80211_channel* chan = local->hw.conf.channel;
if (!chan)
return -EINVAL;
new_power_level = chan->max_power;
}
if (local->hw.conf.power_level != new_power_level) {
local->hw.conf.power_level = new_power_level;
need_reconfig = 1;
}
if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
local->hw.conf.radio_enabled = !(data->txpower.disabled);
need_reconfig = 1;
ieee80211_led_radio(local, local->hw.conf.radio_enabled);
}
if (need_reconfig) {
ieee80211_hw_config(local);
/* The return value of hw_config is not of big interest here,
* as it doesn't say that it failed because of _this_ config
* change or something else. Ignore it. */
}
return 0;
}
static int ieee80211_ioctl_giwscan(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *data, char *extra)
{
int res;
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
if (local->sta_sw_scanning || local->sta_hw_scanning)
return -EAGAIN;
res = ieee80211_sta_scan_results(dev, extra, data->length);
if (res >= 0) {
data->length = res;
return 0;
}
data->length = 0;
return res;
}
static int ieee80211_ioctl_siwfrag(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *frag, char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
if (frag->disabled)
local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
else if (!frag->fixed)
local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
else if (frag->value < 256 ||
frag->value > IEEE80211_MAX_FRAG_THRESHOLD)
return -EINVAL;
else {
/* Fragment length must be even, so strip LSB. */
local->fragmentation_threshold = frag->value & ~0x1;
}
return 0;
}
/**
* mesh_send_path error - Sends a PERR mesh management frame
*
* @dst: broken destination
* @dst_dsn: dsn of the broken destination
* @ra: node this frame is addressed to
*/
int mesh_path_error_tx(u8 *dst, __le32 dst_dsn, u8 *ra,
struct net_device *dev)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct sk_buff *skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
struct ieee80211_mgmt *mgmt;
u8 *pos;
int ie_len;
if (!skb)
return -1;
skb_reserve(skb, local->hw.extra_tx_headroom);
/* 25 is the size of the common mgmt part (24) plus the size of the
* common action part (1)
*/
mgmt = (struct ieee80211_mgmt *)
skb_put(skb, 25 + sizeof(mgmt->u.action.u.mesh_action));
memset(mgmt, 0, 25 + sizeof(mgmt->u.action.u.mesh_action));
mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
IEEE80211_STYPE_ACTION);
memcpy(mgmt->da, ra, ETH_ALEN);
memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
/* BSSID is left zeroed, wildcard value */
mgmt->u.action.category = MESH_PATH_SEL_CATEGORY;
mgmt->u.action.u.mesh_action.action_code = MPATH_PERR;
ie_len = 12;
pos = skb_put(skb, 2 + ie_len);
*pos++ = WLAN_EID_PERR;
*pos++ = ie_len;
/* mode flags, reserved */
*pos++ = 0;
/* number of destinations */
*pos++ = 1;
memcpy(pos, dst, ETH_ALEN);
pos += ETH_ALEN;
memcpy(pos, &dst_dsn, 4);
ieee80211_sta_tx(dev, skb, 0);
return 0;
}
static int ieee80211_ioctl_giwscan(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *data, char *extra)
{
int res;
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_sub_if_data *sdata;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (local->sw_scanning || local->hw_scanning)
return -EAGAIN;
res = ieee80211_scan_results(local, info, extra, data->length);
if (res >= 0) {
data->length = res;
return 0;
}
data->length = 0;
return res;
}
static int ieee80211_ioctl_siwrate(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *rate, char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
int i, err = -EINVAL;
u32 target_rate = rate->value / 100000;
struct ieee80211_sub_if_data *sdata;
struct ieee80211_supported_band *sband;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (!sdata->bss)
return -ENODEV;
sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
/* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
* target_rate = X, rate->fixed = 1 means only rate X
* target_rate = X, rate->fixed = 0 means all rates <= X */
sdata->bss->max_ratectrl_rateidx = -1;
sdata->bss->force_unicast_rateidx = -1;
if (rate->value < 0)
return 0;
for (i=0; i< sband->n_bitrates; i++) {
struct ieee80211_rate *brate = &sband->bitrates[i];
int this_rate = brate->bitrate;
if (target_rate == this_rate) {
sdata->bss->max_ratectrl_rateidx = i;
if (rate->fixed)
sdata->bss->force_unicast_rateidx = i;
err = 0;
break;
}
}
return err;
}
static int ieee80211_ioctl_giwretry(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *retry, char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
retry->disabled = 0;
if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) {
/* first return min value, iwconfig will ask max value
* later if needed */
retry->flags |= IW_RETRY_LIMIT;
retry->value = local->short_retry_limit;
if (local->long_retry_limit != local->short_retry_limit)
retry->flags |= IW_RETRY_MIN;
return 0;
}
if (retry->flags & IW_RETRY_MAX) {
retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
retry->value = local->long_retry_limit;
}
return 0;
}
static int ieee80211_ioctl_siwretry(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *retry, char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
if (retry->disabled ||
(retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
return -EINVAL;
if (retry->flags & IW_RETRY_MAX) {
local->hw.conf.long_frame_max_tx_count = retry->value;
} else if (retry->flags & IW_RETRY_MIN) {
local->hw.conf.short_frame_max_tx_count = retry->value;
} else {
local->hw.conf.long_frame_max_tx_count = retry->value;
local->hw.conf.short_frame_max_tx_count = retry->value;
}
ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
return 0;
}
static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_channel* chan = local->hw.conf.channel;
u32 reconf_flags = 0;
int new_power_level;
if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
return -EINVAL;
if (data->txpower.flags & IW_TXPOW_RANGE)
return -EINVAL;
if (!chan)
return -EINVAL;
if (data->txpower.fixed)
new_power_level = min(data->txpower.value, chan->max_power);
else /* Automatic power level setting */
new_power_level = chan->max_power;
if (local->hw.conf.power_level != new_power_level) {
local->hw.conf.power_level = new_power_level;
reconf_flags |= IEEE80211_CONF_CHANGE_POWER;
}
if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
local->hw.conf.radio_enabled = !(data->txpower.disabled);
reconf_flags |= IEEE80211_CONF_CHANGE_RADIO_ENABLED;
ieee80211_led_radio(local, local->hw.conf.radio_enabled);
}
if (reconf_flags)
ieee80211_hw_config(local, reconf_flags);
return 0;
}
/**
* lbs_add_card - adds the card. It will probe the
* card, allocate the lbs_priv and initialize the device.
*
* @card: A pointer to card
* @dmdev: A pointer to &struct device
* returns: A pointer to &struct lbs_private structure
*/
struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
{
struct net_device *dev;
struct wireless_dev *wdev;
struct lbs_private *priv = NULL;
lbs_deb_enter(LBS_DEB_MAIN);
/* Allocate an Ethernet device and register it */
wdev = lbs_cfg_alloc(dmdev);
if (IS_ERR(wdev)) {
pr_err("cfg80211 init failed\n");
goto done;
}
wdev->iftype = NL80211_IFTYPE_STATION;
priv = wdev_priv(wdev);
priv->wdev = wdev;
if (lbs_init_adapter(priv)) {
pr_err("failed to initialize adapter structure\n");
goto err_wdev;
}
dev = alloc_netdev(0, "wlan%d", ether_setup);
if (!dev) {
dev_err(dmdev, "no memory for network device instance\n");
goto err_adapter;
}
dev->ieee80211_ptr = wdev;
dev->ml_priv = priv;
SET_NETDEV_DEV(dev, dmdev);
wdev->netdev = dev;
priv->dev = dev;
dev->netdev_ops = &lbs_netdev_ops;
dev->watchdog_timeo = 5 * HZ;
dev->ethtool_ops = &lbs_ethtool_ops;
dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
priv->card = card;
strcpy(dev->name, "wlan%d");
lbs_deb_thread("Starting main thread...\n");
init_waitqueue_head(&priv->waitq);
priv->main_thread = kthread_run(lbs_thread, dev, "lbs_main");
if (IS_ERR(priv->main_thread)) {
lbs_deb_thread("Error creating main thread.\n");
goto err_ndev;
}
priv->work_thread = create_singlethread_workqueue("lbs_worker");
INIT_WORK(&priv->mcast_work, lbs_set_mcast_worker);
priv->wol_criteria = EHS_REMOVE_WAKEUP;
priv->wol_gpio = 0xff;
priv->wol_gap = 20;
priv->ehs_remove_supported = true;
goto done;
err_ndev:
free_netdev(dev);
err_adapter:
lbs_free_adapter(priv);
err_wdev:
lbs_cfg_free(priv);
priv = NULL;
done:
lbs_deb_leave_args(LBS_DEB_MAIN, "priv %p", priv);
return priv;
}
static ssize_t sta_agg_status_write(struct file *file,
const char __user *user_buf, size_t count, loff_t *ppos)
{
struct sta_info *sta = file->private_data;
struct net_device *dev = sta->sdata->dev;
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_hw *hw = &local->hw;
u8 *da = sta->addr;
static int tid_static_tx[16] = {0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0};
static int tid_static_rx[16] = {1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1};
char *endp;
char buf[32];
int buf_size, rs;
unsigned int tid_num;
char state[4];
memset(buf, 0x00, sizeof(buf));
buf_size = min(count, (sizeof(buf)-1));
if (copy_from_user(buf, user_buf, buf_size))
return -EFAULT;
tid_num = simple_strtoul(buf, &endp, 0);
if (endp == buf)
return -EINVAL;
if ((tid_num >= 100) && (tid_num <= 115)) {
/* toggle Rx aggregation command */
tid_num = tid_num - 100;
if (tid_static_rx[tid_num] == 1) {
strcpy(state, "off ");
ieee80211_sta_stop_rx_ba_session(dev, da, tid_num, 0,
WLAN_REASON_QSTA_REQUIRE_SETUP);
sta->ampdu_mlme.tid_state_rx[tid_num] |=
HT_AGG_STATE_DEBUGFS_CTL;
tid_static_rx[tid_num] = 0;
} else {
strcpy(state, "on ");
sta->ampdu_mlme.tid_state_rx[tid_num] &=
~HT_AGG_STATE_DEBUGFS_CTL;
tid_static_rx[tid_num] = 1;
}
printk(KERN_DEBUG "debugfs - try switching tid %u %s\n",
tid_num, state);
} else if ((tid_num >= 0) && (tid_num <= 15)) {
/* toggle Tx aggregation command */
if (tid_static_tx[tid_num] == 0) {
strcpy(state, "on ");
rs = ieee80211_start_tx_ba_session(hw, da, tid_num);
if (rs == 0)
tid_static_tx[tid_num] = 1;
} else {
strcpy(state, "off");
rs = ieee80211_stop_tx_ba_session(hw, da, tid_num, 1);
if (rs == 0)
tid_static_tx[tid_num] = 0;
}
printk(KERN_DEBUG "debugfs - switching tid %u %s, return=%d\n",
tid_num, state, rs);
}
return count;
}
static void rate_control_pid_tx_status(void *priv, struct net_device *dev,
struct sk_buff *skb,
struct ieee80211_tx_status *status)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct ieee80211_sub_if_data *sdata;
struct rc_pid_info *pinfo = priv;
struct sta_info *sta;
struct rc_pid_sta_info *spinfo;
unsigned long period;
struct ieee80211_supported_band *sband;
rcu_read_lock();
sta = sta_info_get(local, hdr->addr1);
sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
if (!sta)
goto unlock;
/* Don't update the state if we're not controlling the rate. */
sdata = sta->sdata;
if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) {
sta->txrate_idx = sdata->bss->max_ratectrl_rateidx;
goto unlock;
}
/* Ignore all frames that were sent with a different rate than the rate
* we currently advise mac80211 to use. */
if (status->control.tx_rate != &sband->bitrates[sta->txrate_idx])
goto unlock;
spinfo = sta->rate_ctrl_priv;
spinfo->tx_num_xmit++;
#ifdef CONFIG_MAC80211_DEBUGFS
rate_control_pid_event_tx_status(&spinfo->events, status);
#endif
/* We count frames that totally failed to be transmitted as two bad
* frames, those that made it out but had some retries as one good and
* one bad frame. */
if (status->excessive_retries) {
spinfo->tx_num_failed += 2;
spinfo->tx_num_xmit++;
} else if (status->retry_count) {
spinfo->tx_num_failed++;
spinfo->tx_num_xmit++;
}
if (status->excessive_retries) {
sta->tx_retry_failed++;
sta->tx_num_consecutive_failures++;
sta->tx_num_mpdu_fail++;
} else {
sta->tx_num_consecutive_failures = 0;
sta->tx_num_mpdu_ok++;
}
sta->tx_retry_count += status->retry_count;
sta->tx_num_mpdu_fail += status->retry_count;
/* Update PID controller state. */
period = (HZ * pinfo->sampling_period + 500) / 1000;
if (!period)
period = 1;
if (time_after(jiffies, spinfo->last_sample + period))
rate_control_pid_sample(pinfo, local, sta);
unlock:
rcu_read_unlock();
}
static inline void *ar6k_priv(struct net_device *dev)
{
return wdev_priv(dev->ieee80211_ptr);
}
static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags,
u8 *orig_addr, __le32 orig_dsn, u8 dst_flags, u8 *dst,
__le32 dst_dsn, u8 *da, u8 hop_count, u8 ttl, __le32 lifetime,
__le32 metric, __le32 preq_id, struct net_device *dev)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct sk_buff *skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
struct ieee80211_mgmt *mgmt;
u8 *pos;
int ie_len;
if (!skb)
return -1;
skb_reserve(skb, local->hw.extra_tx_headroom);
/* 25 is the size of the common mgmt part (24) plus the size of the
* common action part (1)
*/
mgmt = (struct ieee80211_mgmt *)
skb_put(skb, 25 + sizeof(mgmt->u.action.u.mesh_action));
memset(mgmt, 0, 25 + sizeof(mgmt->u.action.u.mesh_action));
mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
IEEE80211_STYPE_ACTION);
memcpy(mgmt->da, da, ETH_ALEN);
memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
/* BSSID is left zeroed, wildcard value */
mgmt->u.action.category = MESH_PATH_SEL_CATEGORY;
mgmt->u.action.u.mesh_action.action_code = action;
switch (action) {
case MPATH_PREQ:
ie_len = 37;
pos = skb_put(skb, 2 + ie_len);
*pos++ = WLAN_EID_PREQ;
break;
case MPATH_PREP:
ie_len = 31;
pos = skb_put(skb, 2 + ie_len);
*pos++ = WLAN_EID_PREP;
break;
default:
kfree(skb);
return -ENOTSUPP;
break;
}
*pos++ = ie_len;
*pos++ = flags;
*pos++ = hop_count;
*pos++ = ttl;
if (action == MPATH_PREQ) {
memcpy(pos, &preq_id, 4);
pos += 4;
}
memcpy(pos, orig_addr, ETH_ALEN);
pos += ETH_ALEN;
memcpy(pos, &orig_dsn, 4);
pos += 4;
memcpy(pos, &lifetime, 4);
pos += 4;
memcpy(pos, &metric, 4);
pos += 4;
if (action == MPATH_PREQ) {
/* destination count */
*pos++ = 1;
*pos++ = dst_flags;
}
memcpy(pos, dst, ETH_ALEN);
pos += ETH_ALEN;
memcpy(pos, &dst_dsn, 4);
ieee80211_sta_tx(dev, skb, 0);
return 0;
}