/*
* CFG802.11 operation handler for association request.
*
* This function does not work when the current mode is set to Ad-Hoc, or
* when there is already an association procedure going on. The given BSS
* information is used to associate.
*/
static int
mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_connect_params *sme)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
int ret = 0;
if (priv->assoc_request)
return -EBUSY;
if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
wiphy_err(wiphy, "received infra assoc request "
"when station is in ibss mode\n");
goto done;
}
priv->assoc_request = -EINPROGRESS;
wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
(char *) sme->ssid, sme->bssid);
ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
priv->bss_mode, sme->channel, sme, 0);
priv->assoc_request = 1;
done:
priv->assoc_result = ret;
queue_work(priv->workqueue, &priv->cfg_workqueue);
return ret;
}
/*
* CFG802.11 operation handler to join an IBSS.
*
* This function does not work in any mode other than Ad-Hoc, or if
* a join operation is already in progress.
*/
static int
mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_ibss_params *params)
{
struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
int ret = 0;
if (priv->ibss_join_request)
return -EBUSY;
if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
wiphy_err(wiphy, "request to join ibss received "
"when station is not in ibss mode\n");
goto done;
}
priv->ibss_join_request = -EINPROGRESS;
wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
(char *) params->ssid, params->bssid);
ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
params->bssid, priv->bss_mode,
params->channel, NULL, params->privacy);
priv->ibss_join_request = 1;
done:
priv->ibss_join_result = ret;
queue_work(priv->workqueue, &priv->cfg_workqueue);
return ret;
}
/*
* CFG802.11 operation handler for association request.
*
* This function does not work when the current mode is set to Ad-Hoc, or
* when there is already an association procedure going on. The given BSS
* information is used to associate.
*/
static int
mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_connect_params *sme)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
int ret = 0;
if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
wiphy_err(wiphy, "received infra assoc request "
"when station is in ibss mode\n");
goto done;
}
wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
(char *) sme->ssid, sme->bssid);
ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
priv->bss_mode, sme->channel, sme, 0);
done:
if (!ret) {
cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
NULL, 0, WLAN_STATUS_SUCCESS,
GFP_KERNEL);
dev_dbg(priv->adapter->dev,
"info: associated to bssid %pM successfully\n",
priv->cfg_bssid);
} else {
dev_dbg(priv->adapter->dev,
"info: association to bssid %pM failed\n",
priv->cfg_bssid);
memset(priv->cfg_bssid, 0, ETH_ALEN);
}
return ret;
}
/*
* CFG802.11 operation handler to join an IBSS.
*
* This function does not work in any mode other than Ad-Hoc, or if
* a join operation is already in progress.
*/
static int
mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_ibss_params *params)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
int ret = 0;
if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
wiphy_err(wiphy, "request to join ibss received "
"when station is not in ibss mode\n");
goto done;
}
wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
(char *) params->ssid, params->bssid);
ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
params->bssid, priv->bss_mode,
params->channel, NULL, params->privacy);
done:
if (!ret) {
cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, GFP_KERNEL);
dev_dbg(priv->adapter->dev,
"info: joined/created adhoc network with bssid"
" %pM successfully\n", priv->cfg_bssid);
} else {
dev_dbg(priv->adapter->dev,
"info: failed creating/joining adhoc network\n");
}
return ret;
}
static int cw1200_scan_start(struct cw1200_common *priv, struct wsm_scan *scan)
{
int ret, i;
int tmo = 2000;
switch (priv->join_status) {
case CW1200_JOIN_STATUS_PRE_STA:
case CW1200_JOIN_STATUS_JOINING:
return -EBUSY;
default:
break;
}
wiphy_dbg(priv->hw->wiphy, "[SCAN] hw req, type %d, %d channels, flags: 0x%x.\n",
scan->type, scan->num_channels, scan->flags);
for (i = 0; i < scan->num_channels; ++i)
tmo += scan->ch[i].max_chan_time + 10;
cancel_delayed_work_sync(&priv->clear_recent_scan_work);
atomic_set(&priv->scan.in_progress, 1);
atomic_set(&priv->recent_scan, 1);
cw1200_pm_stay_awake(&priv->pm_state, msecs_to_jiffies(tmo));
queue_delayed_work(priv->workqueue, &priv->scan.timeout,
msecs_to_jiffies(tmo));
ret = wsm_scan(priv, scan);
if (ret) {
atomic_set(&priv->scan.in_progress, 0);
cancel_delayed_work_sync(&priv->scan.timeout);
cw1200_scan_restart_delayed(priv);
}
return ret;
}
static void cw1200_scan_restart_delayed(struct cw1200_common *priv)
{
if (priv->delayed_link_loss) {
int tmo = priv->cqm_beacon_loss_count;
if (priv->scan.direct_probe)
tmo = 0;
priv->delayed_link_loss = 0;
/* Restart beacon loss timer and requeue
BSS loss work. */
wiphy_dbg(priv->hw->wiphy,
"[CQM] Requeue BSS loss in %d "
"beacons.\n", tmo);
spin_lock(&priv->bss_loss_lock);
priv->bss_loss_status = CW1200_BSS_LOSS_NONE;
spin_unlock(&priv->bss_loss_lock);
cancel_delayed_work_sync(&priv->bss_loss_work);
queue_delayed_work(priv->workqueue,
&priv->bss_loss_work,
tmo * HZ / 10);
}
/* FW bug: driver has to restart p2p-dev mode after scan. */
if (priv->join_status == CW1200_JOIN_STATUS_MONITOR) {
cw1200_enable_listening(priv);
cw1200_update_filtering(priv);
}
if (priv->delayed_unjoin) {
priv->delayed_unjoin = false;
if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0)
wsm_unlock_tx(priv);
}
}
static void
brcms_ops_configure_filter(struct ieee80211_hw *hw,
unsigned int changed_flags,
unsigned int *total_flags, u64 multicast)
{
struct brcms_info *wl = hw->priv;
struct wiphy *wiphy = hw->wiphy;
changed_flags &= MAC_FILTERS;
*total_flags &= MAC_FILTERS;
if (changed_flags & FIF_PROMISC_IN_BSS)
wiphy_dbg(wiphy, "FIF_PROMISC_IN_BSS\n");
if (changed_flags & FIF_ALLMULTI)
wiphy_dbg(wiphy, "FIF_ALLMULTI\n");
if (changed_flags & FIF_FCSFAIL)
wiphy_dbg(wiphy, "FIF_FCSFAIL\n");
if (changed_flags & FIF_CONTROL)
wiphy_dbg(wiphy, "FIF_CONTROL\n");
if (changed_flags & FIF_OTHER_BSS)
wiphy_dbg(wiphy, "FIF_OTHER_BSS\n");
if (changed_flags & FIF_PSPOLL)
wiphy_dbg(wiphy, "FIF_PSPOLL\n");
if (changed_flags & FIF_BCN_PRBRESP_PROMISC)
wiphy_dbg(wiphy, "FIF_BCN_PRBRESP_PROMISC\n");
spin_lock_bh(&wl->lock);
brcms_c_mac_promisc(wl->wlc, *total_flags);
spin_unlock_bh(&wl->lock);
return;
}
/*
* CFG802.11 operation handler to change interface type.
*/
static int
mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
struct net_device *dev,
enum nl80211_iftype type, u32 *flags,
struct vif_params *params)
{
int ret;
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
if (priv->bss_mode == type) {
wiphy_warn(wiphy, "already set to required type\n");
return 0;
}
priv->bss_mode = type;
switch (type) {
case NL80211_IFTYPE_ADHOC:
dev->ieee80211_ptr->iftype = NL80211_IFTYPE_ADHOC;
wiphy_dbg(wiphy, "info: setting interface type to adhoc\n");
break;
case NL80211_IFTYPE_STATION:
dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
wiphy_dbg(wiphy, "info: setting interface type to managed\n");
break;
case NL80211_IFTYPE_UNSPECIFIED:
dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
wiphy_dbg(wiphy, "info: setting interface type to auto\n");
return 0;
default:
wiphy_err(wiphy, "unknown interface type: %d\n", type);
return -EINVAL;
}
mwifiex_deauthenticate(priv, NULL);
priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
HostCmd_ACT_GEN_SET, 0, NULL);
return ret;
}
static int mwifiex_process_country_ie(struct mwifiex_private *priv,
struct cfg80211_bss *bss)
{
const u8 *country_ie;
u8 country_ie_len;
struct mwifiex_802_11d_domain_reg *domain_info =
&priv->adapter->domain_reg;
rcu_read_lock();
country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY);
if (!country_ie) {
rcu_read_unlock();
return 0;
}
country_ie_len = country_ie[1];
if (country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN) {
rcu_read_unlock();
return 0;
}
if (!strncmp(priv->adapter->country_code, &country_ie[2], 2)) {
rcu_read_unlock();
wiphy_dbg(priv->wdev->wiphy,
"11D: skip setting domain info in FW\n");
return 0;
}
memcpy(priv->adapter->country_code, &country_ie[2], 2);
domain_info->country_code[0] = country_ie[2];
domain_info->country_code[1] = country_ie[3];
domain_info->country_code[2] = ' ';
country_ie_len -= IEEE80211_COUNTRY_STRING_LEN;
domain_info->no_of_triplet =
country_ie_len / sizeof(struct ieee80211_country_ie_triplet);
memcpy((u8 *)domain_info->triplet,
&country_ie[2] + IEEE80211_COUNTRY_STRING_LEN, country_ie_len);
rcu_read_unlock();
if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
HostCmd_ACT_GEN_SET, 0, NULL, false)) {
wiphy_err(priv->adapter->wiphy,
"11D: setting domain info in FW\n");
return -1;
}
mwifiex_dnld_txpwr_table(priv);
return 0;
}
static int brcms_ops_config(struct ieee80211_hw *hw, u32 changed)
{
struct ieee80211_conf *conf = &hw->conf;
struct brcms_info *wl = hw->priv;
int err = 0;
int new_int;
struct wiphy *wiphy = hw->wiphy;
spin_lock_bh(&wl->lock);
if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {
brcms_c_set_beacon_listen_interval(wl->wlc,
conf->listen_interval);
}
if (changed & IEEE80211_CONF_CHANGE_MONITOR)
wiphy_dbg(wiphy, "%s: change monitor mode: %s\n",
__func__, conf->flags & IEEE80211_CONF_MONITOR ?
"true" : "false");
if (changed & IEEE80211_CONF_CHANGE_PS)
wiphy_err(wiphy, "%s: change power-save mode: %s (implement)\n",
__func__, conf->flags & IEEE80211_CONF_PS ?
"true" : "false");
if (changed & IEEE80211_CONF_CHANGE_POWER) {
err = brcms_c_set_tx_power(wl->wlc, conf->power_level);
if (err < 0) {
wiphy_err(wiphy, "%s: Error setting power_level\n",
__func__);
goto config_out;
}
new_int = brcms_c_get_tx_power(wl->wlc);
if (new_int != conf->power_level)
wiphy_err(wiphy, "%s: Power level req != actual, %d %d"
"\n", __func__, conf->power_level,
new_int);
}
if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
if (conf->channel_type == NL80211_CHAN_HT20 ||
conf->channel_type == NL80211_CHAN_NO_HT)
err = brcms_c_set_channel(wl->wlc,
conf->channel->hw_value);
else
err = -ENOTSUPP;
}
if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
err = brcms_c_set_rate_limit(wl->wlc,
conf->short_frame_max_tx_count,
conf->long_frame_max_tx_count);
config_out:
spin_unlock_bh(&wl->lock);
return err;
}
static void cw1200_scan_complete(struct cw1200_common *priv)
{
queue_delayed_work(priv->workqueue, &priv->clear_recent_scan_work, HZ);
if (priv->scan.direct_probe) {
wiphy_dbg(priv->hw->wiphy, "[SCAN] Direct probe complete.\n");
cw1200_scan_restart_delayed(priv);
priv->scan.direct_probe = 0;
up(&priv->scan.lock);
wsm_unlock_tx(priv);
} else {
cw1200_scan_work(&priv->scan.work);
}
}
/*
* This function sets the RF channel.
*
* This function creates multiple IOCTL requests, populates them accordingly
* and issues them to set the band/channel and frequency.
*/
static int
mwifiex_set_rf_channel(struct mwifiex_private *priv,
struct ieee80211_channel *chan,
enum nl80211_channel_type channel_type)
{
struct mwifiex_chan_freq_power cfp;
struct mwifiex_ds_band_cfg band_cfg;
u32 config_bands = 0;
struct wiphy *wiphy = priv->wdev->wiphy;
if (chan) {
memset(&band_cfg, 0, sizeof(band_cfg));
/* Set appropriate bands */
if (chan->band == IEEE80211_BAND_2GHZ)
config_bands = BAND_B | BAND_G | BAND_GN;
else
config_bands = BAND_AN | BAND_A;
if (priv->bss_mode == NL80211_IFTYPE_STATION
|| priv->bss_mode == NL80211_IFTYPE_UNSPECIFIED) {
band_cfg.config_bands = config_bands;
} else if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
band_cfg.config_bands = config_bands;
band_cfg.adhoc_start_band = config_bands;
}
band_cfg.sec_chan_offset =
mwifiex_cfg80211_channel_type_to_mwifiex_channels
(channel_type);
if (mwifiex_set_radio_band_cfg(priv, &band_cfg))
return -EFAULT;
mwifiex_send_domain_info_cmd_fw(wiphy);
}
wiphy_dbg(wiphy, "info: setting band %d, channel offset %d and "
"mode %d\n", config_bands, band_cfg.sec_chan_offset,
priv->bss_mode);
if (!chan)
return 0;
memset(&cfp, 0, sizeof(cfp));
cfp.freq = chan->center_freq;
cfp.channel = ieee80211_frequency_to_channel(chan->center_freq);
if (mwifiex_bss_set_channel(priv, &cfp))
return -EFAULT;
return mwifiex_drv_change_adhoc_chan(priv, cfp.channel);
}
/*
* CFG802.11 operation handler to leave an IBSS.
*
* This function does not work if a leave operation is
* already in progress.
*/
static int
mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
priv->cfg_bssid);
if (mwifiex_deauthenticate(priv, NULL))
return -EFAULT;
memset(priv->cfg_bssid, 0, ETH_ALEN);
return 0;
}
/*
* CFG802.11 operation handler to delete a network key.
*/
static int
mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
u8 key_index, bool pairwise, const u8 *mac_addr)
{
struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
if (mwifiex_set_encode(priv, NULL, 0, key_index, 1)) {
wiphy_err(wiphy, "deleting the crypto keys\n");
return -EFAULT;
}
wiphy_dbg(wiphy, "info: crypto keys deleted\n");
return 0;
}
void __wiphy_dbg(struct wiphy *wiphy, bool print, const char *fmt, ...)
{
struct va_format vaf = {
.fmt = fmt,
};
va_list args;
va_start(args, fmt);
vaf.va = &args;
if (print)
wiphy_dbg(wiphy, "%pV", &vaf);
trace_mac80211_dbg(&vaf);
va_end(args);
}
/*
* CFG802.11 operation handler for disconnection request.
*
* This function does not work when there is already a disconnection
* procedure going on.
*/
static int
mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
u16 reason_code)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
if (mwifiex_deauthenticate(priv, NULL))
return -EFAULT;
wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
" reason code %d\n", priv->cfg_bssid, reason_code);
memset(priv->cfg_bssid, 0, ETH_ALEN);
return 0;
}
/*
* CFG802.11 operation handler for scan request.
*
* This function issues a scan request to the firmware based upon
* the user specified scan configuration. On successfull completion,
* it also informs the results.
*/
static int
mwifiex_cfg80211_scan(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_scan_request *request)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
if (priv->scan_request && priv->scan_request != request)
return -EBUSY;
priv->scan_request = request;
queue_work(priv->workqueue, &priv->cfg_workqueue);
return 0;
}
/*
* CFG802.11 operation handler to set Power Save option.
*
* The timeout value, if provided, is currently ignored.
*/
static int
mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
struct net_device *dev,
bool enabled, int timeout)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
u32 ps_mode;
if (timeout)
wiphy_dbg(wiphy,
"info: ignore timeout value for IEEE Power Save\n");
ps_mode = enabled;
return mwifiex_drv_set_power(priv, &ps_mode);
}
static void cw1200_scan_restart_delayed(struct cw1200_common *priv)
{
/* FW bug: driver has to restart p2p-dev mode after scan. */
if (priv->join_status == CW1200_JOIN_STATUS_MONITOR) {
cw1200_enable_listening(priv);
cw1200_update_filtering(priv);
}
if (priv->delayed_unjoin) {
priv->delayed_unjoin = false;
if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0)
wsm_unlock_tx(priv);
} else if (priv->delayed_link_loss) {
wiphy_dbg(priv->hw->wiphy, "[CQM] Requeue BSS loss.\n");
priv->delayed_link_loss = 0;
cw1200_cqm_bssloss_sm(priv, 1, 0, 0);
}
}
/*
* CFG802.11 operation handler to leave an IBSS.
*
* This function does not work if a leave operation is
* already in progress.
*/
static int
mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
{
struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
if (priv->disconnect)
return -EBUSY;
priv->disconnect = 1;
wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
priv->cfg_bssid);
if (mwifiex_deauthenticate(priv, NULL))
return -EFAULT;
queue_work(priv->workqueue, &priv->cfg_workqueue);
return 0;
}
/*
* CFG802.11 operation handler for disconnection request.
*
* This function does not work when there is already a disconnection
* procedure going on.
*/
static int
mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
u16 reason_code)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
if (priv->disconnect)
return -EBUSY;
priv->disconnect = 1;
if (mwifiex_deauthenticate(priv, NULL))
return -EFAULT;
wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
" reason code %d\n", priv->cfg_bssid, reason_code);
queue_work(priv->workqueue, &priv->cfg_workqueue);
return 0;
}
/*
* CFG802.11 operation handler for scan request.
*
* This function issues a scan request to the firmware based upon
* the user specified scan configuration. On successfull completion,
* it also informs the results.
*/
static int
mwifiex_cfg80211_scan(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_scan_request *request)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
int i;
struct ieee80211_channel *chan;
wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
priv->scan_request = request;
priv->user_scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
GFP_KERNEL);
if (!priv->user_scan_cfg) {
dev_err(priv->adapter->dev, "failed to alloc scan_req\n");
return -ENOMEM;
}
priv->user_scan_cfg->num_ssids = request->n_ssids;
priv->user_scan_cfg->ssid_list = request->ssids;
for (i = 0; i < request->n_channels; i++) {
chan = request->channels[i];
priv->user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
priv->user_scan_cfg->chan_list[i].radio_type = chan->band;
if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
priv->user_scan_cfg->chan_list[i].scan_type =
MWIFIEX_SCAN_TYPE_PASSIVE;
else
priv->user_scan_cfg->chan_list[i].scan_type =
MWIFIEX_SCAN_TYPE_ACTIVE;
priv->user_scan_cfg->chan_list[i].scan_time = 0;
}
if (mwifiex_set_user_scan_ioctl(priv, priv->user_scan_cfg))
return -EFAULT;
return 0;
}
/*
* CFG802.11 regulatory domain callback function.
*
* This function is called when the regulatory domain is changed due to the
* following reasons -
* - Set by driver
* - Set by system core
* - Set by user
* - Set bt Country IE
*/
static int mwifiex_reg_notifier(struct wiphy *wiphy,
struct regulatory_request *request)
{
struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
request->alpha2[0], request->alpha2[1]);
memcpy(adapter->country_code, request->alpha2, sizeof(request->alpha2));
switch (request->initiator) {
case NL80211_REGDOM_SET_BY_DRIVER:
case NL80211_REGDOM_SET_BY_CORE:
case NL80211_REGDOM_SET_BY_USER:
break;
/* Todo: apply driver specific changes in channel flags based
on the request initiator if necessary. */
case NL80211_REGDOM_SET_BY_COUNTRY_IE:
break;
}
mwifiex_send_domain_info_cmd_fw(wiphy);
return 0;
}
void cw1200_scan_work(struct work_struct *work)
{
struct cw1200_common *priv = container_of(work, struct cw1200_common,
scan.work);
struct ieee80211_channel **it;
struct wsm_scan scan = {
.type = WSM_SCAN_TYPE_FOREGROUND,
.flags = WSM_SCAN_FLAG_SPLIT_METHOD,
};
bool first_run = (priv->scan.begin == priv->scan.curr &&
priv->scan.begin != priv->scan.end);
int i;
if (first_run) {
/* Firmware gets crazy if scan request is sent
* when STA is joined but not yet associated.
* Force unjoin in this case.
*/
if (cancel_delayed_work_sync(&priv->join_timeout) > 0)
cw1200_join_timeout(&priv->join_timeout.work);
}
mutex_lock(&priv->conf_mutex);
if (first_run) {
if (priv->join_status == CW1200_JOIN_STATUS_STA &&
!(priv->powersave_mode.mode & WSM_PSM_PS)) {
struct wsm_set_pm pm = priv->powersave_mode;
pm.mode = WSM_PSM_PS;
cw1200_set_pm(priv, &pm);
} else if (priv->join_status == CW1200_JOIN_STATUS_MONITOR) {
/* FW bug: driver has to restart p2p-dev mode
* after scan
*/
cw1200_disable_listening(priv);
}
}
if (!priv->scan.req || (priv->scan.curr == priv->scan.end)) {
struct cfg80211_scan_info info = {
.aborted = priv->scan.status ? 1 : 0,
};
if (priv->scan.output_power != priv->output_power)
wsm_set_output_power(priv, priv->output_power * 10);
if (priv->join_status == CW1200_JOIN_STATUS_STA &&
!(priv->powersave_mode.mode & WSM_PSM_PS))
cw1200_set_pm(priv, &priv->powersave_mode);
if (priv->scan.status < 0)
wiphy_warn(priv->hw->wiphy,
"[SCAN] Scan failed (%d).\n",
priv->scan.status);
else if (priv->scan.req)
wiphy_dbg(priv->hw->wiphy,
"[SCAN] Scan completed.\n");
else
wiphy_dbg(priv->hw->wiphy,
"[SCAN] Scan canceled.\n");
priv->scan.req = NULL;
cw1200_scan_restart_delayed(priv);
wsm_unlock_tx(priv);
mutex_unlock(&priv->conf_mutex);
ieee80211_scan_completed(priv->hw, &info);
up(&priv->scan.lock);
return;
} else {
struct ieee80211_channel *first = *priv->scan.curr;
for (it = priv->scan.curr + 1, i = 1;
it != priv->scan.end && i < WSM_SCAN_MAX_NUM_OF_CHANNELS;
++it, ++i) {
if ((*it)->band != first->band)
break;
if (((*it)->flags ^ first->flags) &
IEEE80211_CHAN_NO_IR)
break;
if (!(first->flags & IEEE80211_CHAN_NO_IR) &&
(*it)->max_power != first->max_power)
break;
}
scan.band = first->band;
if (priv->scan.req->no_cck)
scan.max_tx_rate = WSM_TRANSMIT_RATE_6;
else
scan.max_tx_rate = WSM_TRANSMIT_RATE_1;
scan.num_probes =
(first->flags & IEEE80211_CHAN_NO_IR) ? 0 : 2;
scan.num_ssids = priv->scan.n_ssids;
scan.ssids = &priv->scan.ssids[0];
scan.num_channels = it - priv->scan.curr;
/* TODO: Is it optimal? */
scan.probe_delay = 100;
/* It is not stated in WSM specification, however
* FW team says that driver may not use FG scan
* when joined.
*/
if (priv->join_status == CW1200_JOIN_STATUS_STA) {
scan.type = WSM_SCAN_TYPE_BACKGROUND;
scan.flags = WSM_SCAN_FLAG_FORCE_BACKGROUND;
}
scan.ch = kcalloc(it - priv->scan.curr,
sizeof(struct wsm_scan_ch),
GFP_KERNEL);
if (!scan.ch) {
priv->scan.status = -ENOMEM;
goto fail;
}
for (i = 0; i < scan.num_channels; ++i) {
scan.ch[i].number = priv->scan.curr[i]->hw_value;
if (priv->scan.curr[i]->flags & IEEE80211_CHAN_NO_IR) {
scan.ch[i].min_chan_time = 50;
scan.ch[i].max_chan_time = 100;
} else {
scan.ch[i].min_chan_time = 10;
scan.ch[i].max_chan_time = 25;
}
}
if (!(first->flags & IEEE80211_CHAN_NO_IR) &&
priv->scan.output_power != first->max_power) {
priv->scan.output_power = first->max_power;
wsm_set_output_power(priv,
priv->scan.output_power * 10);
}
priv->scan.status = cw1200_scan_start(priv, &scan);
kfree(scan.ch);
if (priv->scan.status)
goto fail;
priv->scan.curr = it;
}
mutex_unlock(&priv->conf_mutex);
return;
fail:
priv->scan.curr = priv->scan.end;
mutex_unlock(&priv->conf_mutex);
queue_work(priv->workqueue, &priv->scan.work);
return;
}
int cw1200_hw_scan(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_scan_request *hw_req)
{
struct cw1200_common *priv = hw->priv;
struct cfg80211_scan_request *req = &hw_req->req;
struct wsm_template_frame frame = {
.frame_type = WSM_FRAME_TYPE_PROBE_REQUEST,
};
int i, ret;
if (!priv->vif)
return -EINVAL;
/* Scan when P2P_GO corrupt firmware MiniAP mode */
if (priv->join_status == CW1200_JOIN_STATUS_AP)
return -EOPNOTSUPP;
if (req->n_ssids == 1 && !req->ssids[0].ssid_len)
req->n_ssids = 0;
wiphy_dbg(hw->wiphy, "[SCAN] Scan request for %d SSIDs.\n",
req->n_ssids);
if (req->n_ssids > WSM_SCAN_MAX_NUM_OF_SSIDS)
return -EINVAL;
/* will be unlocked in cw1200_scan_work() */
down(&priv->scan.lock);
mutex_lock(&priv->conf_mutex);
frame.skb = ieee80211_probereq_get(hw, priv->vif->addr, NULL, 0,
req->ie_len);
if (!frame.skb) {
mutex_unlock(&priv->conf_mutex);
up(&priv->scan.lock);
return -ENOMEM;
}
if (req->ie_len)
skb_put_data(frame.skb, req->ie, req->ie_len);
ret = wsm_set_template_frame(priv, &frame);
if (!ret) {
/* Host want to be the probe responder. */
ret = wsm_set_probe_responder(priv, true);
}
if (ret) {
dev_kfree_skb(frame.skb);
mutex_unlock(&priv->conf_mutex);
up(&priv->scan.lock);
return ret;
}
wsm_lock_tx(priv);
BUG_ON(priv->scan.req);
priv->scan.req = req;
priv->scan.n_ssids = 0;
priv->scan.status = 0;
priv->scan.begin = &req->channels[0];
priv->scan.curr = priv->scan.begin;
priv->scan.end = &req->channels[req->n_channels];
priv->scan.output_power = priv->output_power;
for (i = 0; i < req->n_ssids; ++i) {
struct wsm_ssid *dst = &priv->scan.ssids[priv->scan.n_ssids];
memcpy(&dst->ssid[0], req->ssids[i].ssid, sizeof(dst->ssid));
dst->length = req->ssids[i].ssid_len;
++priv->scan.n_ssids;
}
if (frame.skb)
dev_kfree_skb(frame.skb);
mutex_unlock(&priv->conf_mutex);
queue_work(priv->workqueue, &priv->scan.work);
return 0;
}
/*
* This function sets the RF channel.
*
* This function creates multiple IOCTL requests, populates them accordingly
* and issues them to set the band/channel and frequency.
*/
static int
mwifiex_set_rf_channel(struct mwifiex_private *priv,
struct ieee80211_channel *chan,
enum nl80211_channel_type channel_type)
{
struct mwifiex_chan_freq_power cfp;
u32 config_bands = 0;
struct wiphy *wiphy = priv->wdev->wiphy;
struct mwifiex_adapter *adapter = priv->adapter;
if (chan) {
/* Set appropriate bands */
if (chan->band == IEEE80211_BAND_2GHZ) {
if (channel_type == NL80211_CHAN_NO_HT)
if (priv->adapter->config_bands == BAND_B ||
priv->adapter->config_bands == BAND_G)
config_bands =
priv->adapter->config_bands;
else
config_bands = BAND_B | BAND_G;
else
config_bands = BAND_B | BAND_G | BAND_GN;
} else {
if (channel_type == NL80211_CHAN_NO_HT)
config_bands = BAND_A;
else
config_bands = BAND_AN | BAND_A;
}
if (!((config_bands | adapter->fw_bands) &
~adapter->fw_bands)) {
adapter->config_bands = config_bands;
if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
adapter->adhoc_start_band = config_bands;
if ((config_bands & BAND_GN) ||
(config_bands & BAND_AN))
adapter->adhoc_11n_enabled = true;
else
adapter->adhoc_11n_enabled = false;
}
}
adapter->sec_chan_offset =
mwifiex_cfg80211_channel_type_to_sec_chan_offset
(channel_type);
adapter->channel_type = channel_type;
mwifiex_send_domain_info_cmd_fw(wiphy);
}
wiphy_dbg(wiphy, "info: setting band %d, chan offset %d, mode %d\n",
config_bands, adapter->sec_chan_offset, priv->bss_mode);
if (!chan)
return 0;
memset(&cfp, 0, sizeof(cfp));
cfp.freq = chan->center_freq;
cfp.channel = ieee80211_frequency_to_channel(chan->center_freq);
if (mwifiex_bss_set_channel(priv, &cfp))
return -EFAULT;
if (priv->bss_type == MWIFIEX_BSS_TYPE_STA)
return mwifiex_drv_change_adhoc_chan(priv, cfp.channel);
else
return mwifiex_uap_set_channel(priv, cfp.channel);
}
void carl9170_handle_command_response(struct ar9170 *ar, void *buf, u32 len)
{
struct carl9170_rsp *cmd = (void *) buf;
struct ieee80211_vif *vif;
if (carl9170_check_sequence(ar, cmd->hdr.seq))
return;
if ((cmd->hdr.cmd & CARL9170_RSP_FLAG) != CARL9170_RSP_FLAG) {
if (!(cmd->hdr.cmd & CARL9170_CMD_ASYNC_FLAG))
carl9170_cmd_callback(ar, len, buf);
return;
}
if (unlikely(cmd->hdr.len != (len - 4))) {
if (net_ratelimit()) {
wiphy_err(ar->hw->wiphy, "FW: received over-/under"
"sized event %x (%d, but should be %d).\n",
cmd->hdr.cmd, cmd->hdr.len, len - 4);
print_hex_dump_bytes("dump:", DUMP_PREFIX_NONE,
buf, len);
}
return;
}
/* hardware event handlers */
switch (cmd->hdr.cmd) {
case CARL9170_RSP_PRETBTT:
/* pre-TBTT event */
rcu_read_lock();
vif = carl9170_get_main_vif(ar);
if (!vif) {
rcu_read_unlock();
break;
}
switch (vif->type) {
case NL80211_IFTYPE_STATION:
carl9170_handle_ps(ar, cmd);
break;
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_ADHOC:
carl9170_update_beacon(ar, true);
break;
default:
break;
}
rcu_read_unlock();
break;
case CARL9170_RSP_TXCOMP:
/* TX status notification */
carl9170_tx_process_status(ar, cmd);
break;
case CARL9170_RSP_BEACON_CONFIG:
/*
* (IBSS) beacon send notification
* bytes: 04 c2 XX YY B4 B3 B2 B1
*
* XX always 80
* YY always 00
* B1-B4 "should" be the number of send out beacons.
*/
break;
case CARL9170_RSP_ATIM:
/* End of Atim Window */
break;
case CARL9170_RSP_WATCHDOG:
/* Watchdog Interrupt */
carl9170_restart(ar, CARL9170_RR_WATCHDOG);
break;
case CARL9170_RSP_TEXT:
/* firmware debug */
carl9170_dbg_message(ar, (char *)buf + 4, len - 4);
break;
case CARL9170_RSP_HEXDUMP:
wiphy_dbg(ar->hw->wiphy, "FW: HD %d\n", len - 4);
print_hex_dump_bytes("FW:", DUMP_PREFIX_NONE,
(char *)buf + 4, len - 4);
break;
case CARL9170_RSP_RADAR:
if (!net_ratelimit())
break;
wiphy_info(ar->hw->wiphy, "FW: RADAR! Please report this "
"incident to [email protected] !\n");
break;
case CARL9170_RSP_GPIO:
#ifdef CONFIG_CARL9170_WPC
if (ar->wps.pbc) {
bool state = !!(cmd->gpio.gpio & cpu_to_le32(
AR9170_GPIO_PORT_WPS_BUTTON_PRESSED));
if (state != ar->wps.pbc_state) {
ar->wps.pbc_state = state;
input_report_key(ar->wps.pbc, KEY_WPS_BUTTON,
state);
input_sync(ar->wps.pbc);
}
}
#endif /* CONFIG_CARL9170_WPC */
break;
case CARL9170_RSP_BOOT:
complete(&ar->fw_boot_wait);
break;
default:
wiphy_err(ar->hw->wiphy, "FW: received unhandled event %x\n",
cmd->hdr.cmd);
print_hex_dump_bytes("dump:", DUMP_PREFIX_NONE, buf, len);
break;
}
}
/*
* CFG802.11 operation handler for scan request.
*
* This function issues a scan request to the firmware based upon
* the user specified scan configuration. On successfull completion,
* it also informs the results.
*/
static int
mwifiex_cfg80211_scan(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_scan_request *request)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
int i;
struct ieee80211_channel *chan;
wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
priv->scan_request = request;
priv->user_scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
GFP_KERNEL);
if (!priv->user_scan_cfg) {
dev_err(priv->adapter->dev, "failed to alloc scan_req\n");
return -ENOMEM;
}
priv->user_scan_cfg->num_ssids = request->n_ssids;
priv->user_scan_cfg->ssid_list = request->ssids;
if (request->ie && request->ie_len) {
for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
continue;
priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
memcpy(&priv->vs_ie[i].ie, request->ie,
request->ie_len);
break;
}
}
for (i = 0; i < min_t(u32, request->n_channels,
MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
chan = request->channels[i];
priv->user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
priv->user_scan_cfg->chan_list[i].radio_type = chan->band;
if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
priv->user_scan_cfg->chan_list[i].scan_type =
MWIFIEX_SCAN_TYPE_PASSIVE;
else
priv->user_scan_cfg->chan_list[i].scan_type =
MWIFIEX_SCAN_TYPE_ACTIVE;
priv->user_scan_cfg->chan_list[i].scan_time = 0;
}
if (mwifiex_set_user_scan_ioctl(priv, priv->user_scan_cfg))
return -EFAULT;
if (request->ie && request->ie_len) {
for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
memset(&priv->vs_ie[i].ie, 0,
MWIFIEX_MAX_VSIE_LEN);
}
}
}
return 0;
}
void cw1200_scan_work(struct work_struct *work)
{
struct cw1200_common *priv = container_of(work, struct cw1200_common,
scan.work);
struct ieee80211_channel **it;
struct wsm_scan scan = {
.scanType = WSM_SCAN_TYPE_FOREGROUND,
.scanFlags = WSM_SCAN_FLAG_SPLIT_METHOD,
};
bool first_run = priv->scan.begin == priv->scan.curr &&
priv->scan.begin != priv->scan.end;
int i;
mutex_lock(&priv->conf_mutex);
if (first_run) {
if (priv->join_status == CW1200_JOIN_STATUS_STA &&
!(priv->powersave_mode.pmMode & WSM_PSM_PS)) {
struct wsm_set_pm pm = priv->powersave_mode;
pm.pmMode = WSM_PSM_PS;
cw1200_set_pm(priv, &pm);
} else if (priv->join_status == CW1200_JOIN_STATUS_MONITOR) {
/* FW bug: driver has to restart p2p-dev mode
* after scan */
cw1200_disable_listening(priv);
}
}
if (!priv->scan.req || (priv->scan.curr == priv->scan.end)) {
if (priv->scan.output_power != priv->output_power)
WARN_ON(wsm_set_output_power(priv,
priv->output_power * 10));
if (priv->join_status == CW1200_JOIN_STATUS_STA &&
!(priv->powersave_mode.pmMode & WSM_PSM_PS))
cw1200_set_pm(priv, &priv->powersave_mode);
if (priv->scan.status < 0)
wiphy_dbg(priv->hw->wiphy,
"[SCAN] Scan failed (%d).\n",
priv->scan.status);
else if (priv->scan.req)
wiphy_dbg(priv->hw->wiphy,
"[SCAN] Scan completed.\n");
else
wiphy_dbg(priv->hw->wiphy,
"[SCAN] Scan canceled.\n");
priv->scan.req = NULL;
cw1200_scan_restart_delayed(priv);
wsm_unlock_tx(priv);
mutex_unlock(&priv->conf_mutex);
ieee80211_scan_completed(priv->hw, priv->scan.status ? 1 : 0);
up(&priv->scan.lock);
return;
} else {
struct ieee80211_channel *first = *priv->scan.curr;
for (it = priv->scan.curr + 1, i = 1;
it != priv->scan.end && i < WSM_SCAN_MAX_NUM_OF_CHANNELS;
++it, ++i) {
if ((*it)->band != first->band)
break;
if (((*it)->flags ^ first->flags) &
IEEE80211_CHAN_PASSIVE_SCAN)
break;
if (!(first->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
(*it)->max_power != first->max_power)
break;
}
scan.band = first->band;
if (priv->scan.req->no_cck)
scan.maxTransmitRate = WSM_TRANSMIT_RATE_6;
else
scan.maxTransmitRate = WSM_TRANSMIT_RATE_1;
/* TODO: Is it optimal? */
scan.numOfProbeRequests =
(first->flags & IEEE80211_CHAN_PASSIVE_SCAN) ? 0 : 2;
scan.numOfSSIDs = priv->scan.n_ssids;
scan.ssids = &priv->scan.ssids[0];
scan.numOfChannels = it - priv->scan.curr;
scan.probeDelay = 100;
/* It is not stated in WSM specification, however
* FW team says that driver may not use FG scan
* when joined. */
if (priv->join_status == CW1200_JOIN_STATUS_STA) {
scan.scanType = WSM_SCAN_TYPE_BACKGROUND;
scan.scanFlags = WSM_SCAN_FLAG_FORCE_BACKGROUND;
}
scan.ch = kzalloc(
sizeof(struct wsm_scan_ch[it - priv->scan.curr]),
GFP_KERNEL);
if (!scan.ch) {
priv->scan.status = -ENOMEM;
goto fail;
}
for (i = 0; i < scan.numOfChannels; ++i) {
scan.ch[i].number = priv->scan.curr[i]->hw_value;
if (priv->scan.curr[i]->flags & IEEE80211_CHAN_PASSIVE_SCAN) {
scan.ch[i].minChannelTime = 50;
scan.ch[i].maxChannelTime = 100;
}
else {
scan.ch[i].minChannelTime = 10;
scan.ch[i].maxChannelTime = 25;
}
}
if (!(first->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
priv->scan.output_power != first->max_power) {
priv->scan.output_power = first->max_power;
WARN_ON(wsm_set_output_power(priv,
priv->scan.output_power * 10));
}
priv->scan.status = cw1200_scan_start(priv, &scan);
kfree(scan.ch);
if (priv->scan.status)
goto fail;
priv->scan.curr = it;
}
mutex_unlock(&priv->conf_mutex);
return;
fail:
priv->scan.curr = priv->scan.end;
mutex_unlock(&priv->conf_mutex);
queue_work(priv->workqueue, &priv->scan.work);
return;
}
static int carl9170_rx_mac_status(struct ar9170 *ar,
struct ar9170_rx_head *head, struct ar9170_rx_macstatus *mac,
struct ieee80211_rx_status *status)
{
struct ieee80211_channel *chan;
u8 error, decrypt;
BUILD_BUG_ON(sizeof(struct ar9170_rx_head) != 12);
BUILD_BUG_ON(sizeof(struct ar9170_rx_macstatus) != 4);
error = mac->error;
if (error & AR9170_RX_ERROR_WRONG_RA) {
if (!ar->sniffer_enabled)
return -EINVAL;
}
if (error & AR9170_RX_ERROR_PLCP) {
if (!(ar->filter_state & FIF_PLCPFAIL))
return -EINVAL;
status->flag |= RX_FLAG_FAILED_PLCP_CRC;
}
if (error & AR9170_RX_ERROR_FCS) {
ar->tx_fcs_errors++;
if (!(ar->filter_state & FIF_FCSFAIL))
return -EINVAL;
status->flag |= RX_FLAG_FAILED_FCS_CRC;
}
decrypt = ar9170_get_decrypt_type(mac);
if (!(decrypt & AR9170_RX_ENC_SOFTWARE) &&
decrypt != AR9170_ENC_ALG_NONE) {
if ((decrypt == AR9170_ENC_ALG_TKIP) &&
(error & AR9170_RX_ERROR_MMIC))
status->flag |= RX_FLAG_MMIC_ERROR;
status->flag |= RX_FLAG_DECRYPTED;
}
if (error & AR9170_RX_ERROR_DECRYPT && !ar->sniffer_enabled)
return -ENODATA;
error &= ~(AR9170_RX_ERROR_MMIC |
AR9170_RX_ERROR_FCS |
AR9170_RX_ERROR_WRONG_RA |
AR9170_RX_ERROR_DECRYPT |
AR9170_RX_ERROR_PLCP);
/* drop any other error frames */
if (unlikely(error)) {
/* TODO: update netdevice's RX dropped/errors statistics */
if (net_ratelimit())
wiphy_dbg(ar->hw->wiphy, "received frame with "
"suspicious error code (%#x).\n", error);
return -EINVAL;
}
chan = ar->channel;
if (chan) {
status->band = chan->band;
status->freq = chan->center_freq;
}
switch (mac->status & AR9170_RX_STATUS_MODULATION) {
case AR9170_RX_STATUS_MODULATION_CCK:
if (mac->status & AR9170_RX_STATUS_SHORT_PREAMBLE)
status->flag |= RX_FLAG_SHORTPRE;
switch (head->plcp[0]) {
case AR9170_RX_PHY_RATE_CCK_1M:
status->rate_idx = 0;
break;
case AR9170_RX_PHY_RATE_CCK_2M:
status->rate_idx = 1;
break;
case AR9170_RX_PHY_RATE_CCK_5M:
status->rate_idx = 2;
break;
case AR9170_RX_PHY_RATE_CCK_11M:
status->rate_idx = 3;
break;
default:
if (net_ratelimit()) {
wiphy_err(ar->hw->wiphy, "invalid plcp cck "
"rate (%x).\n", head->plcp[0]);
}
return -EINVAL;
}
break;
case AR9170_RX_STATUS_MODULATION_DUPOFDM:
case AR9170_RX_STATUS_MODULATION_OFDM:
switch (head->plcp[0] & 0xf) {
case AR9170_TXRX_PHY_RATE_OFDM_6M:
status->rate_idx = 0;
break;
case AR9170_TXRX_PHY_RATE_OFDM_9M:
status->rate_idx = 1;
break;
case AR9170_TXRX_PHY_RATE_OFDM_12M:
status->rate_idx = 2;
break;
case AR9170_TXRX_PHY_RATE_OFDM_18M:
status->rate_idx = 3;
break;
case AR9170_TXRX_PHY_RATE_OFDM_24M:
status->rate_idx = 4;
break;
case AR9170_TXRX_PHY_RATE_OFDM_36M:
status->rate_idx = 5;
break;
case AR9170_TXRX_PHY_RATE_OFDM_48M:
status->rate_idx = 6;
break;
case AR9170_TXRX_PHY_RATE_OFDM_54M:
status->rate_idx = 7;
break;
default:
if (net_ratelimit()) {
wiphy_err(ar->hw->wiphy, "invalid plcp ofdm "
"rate (%x).\n", head->plcp[0]);
}
return -EINVAL;
}
if (status->band == IEEE80211_BAND_2GHZ)
status->rate_idx += 4;
break;
case AR9170_RX_STATUS_MODULATION_HT:
if (head->plcp[3] & 0x80)
status->flag |= RX_FLAG_40MHZ;
if (head->plcp[6] & 0x80)
status->flag |= RX_FLAG_SHORT_GI;
status->rate_idx = clamp(0, 75, head->plcp[3] & 0x7f);
status->flag |= RX_FLAG_HT;
break;
default:
BUG();
return -ENOSYS;
}
return 0;
}