mac80211: Fix HT channel selection
HT management is done differently for AP and STA modes, unify
to just the ->config() callback since HT is fundamentally a
PHY property and cannot be per-BSS.
Rename enum nl80211_sec_chan_offset as nl80211_channel_type to denote
the channel type ( NO_HT, HT20, HT40+, HT40- ).
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 02e1771..e22fea1 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -623,37 +623,40 @@
return -1;
}
-/* ext_chan_offset: (-1, 0, 1) (below, none, above) */
-
static u32 ath_get_extchanmode(struct ath_softc *sc,
struct ieee80211_channel *chan,
- int ext_chan_offset,
- enum ath9k_ht_macmode tx_chan_width)
+ enum nl80211_channel_type channel_type)
{
u32 chanmode = 0;
switch (chan->band) {
case IEEE80211_BAND_2GHZ:
- if ((ext_chan_offset == 0) &&
- (tx_chan_width == ATH9K_HT_MACMODE_20))
+ switch(channel_type) {
+ case NL80211_CHAN_NO_HT:
+ case NL80211_CHAN_HT20:
chanmode = CHANNEL_G_HT20;
- if ((ext_chan_offset == 1) &&
- (tx_chan_width == ATH9K_HT_MACMODE_2040))
+ break;
+ case NL80211_CHAN_HT40PLUS:
chanmode = CHANNEL_G_HT40PLUS;
- if ((ext_chan_offset == -1) &&
- (tx_chan_width == ATH9K_HT_MACMODE_2040))
+ break;
+ case NL80211_CHAN_HT40MINUS:
chanmode = CHANNEL_G_HT40MINUS;
+ break;
+ }
break;
case IEEE80211_BAND_5GHZ:
- if ((ext_chan_offset == 0) &&
- (tx_chan_width == ATH9K_HT_MACMODE_20))
+ switch(channel_type) {
+ case NL80211_CHAN_NO_HT:
+ case NL80211_CHAN_HT20:
chanmode = CHANNEL_A_HT20;
- if ((ext_chan_offset == 1) &&
- (tx_chan_width == ATH9K_HT_MACMODE_2040))
+ break;
+ case NL80211_CHAN_HT40PLUS:
chanmode = CHANNEL_A_HT40PLUS;
- if ((ext_chan_offset == -1) &&
- (tx_chan_width == ATH9K_HT_MACMODE_2040))
+ break;
+ case NL80211_CHAN_HT40MINUS:
chanmode = CHANNEL_A_HT40MINUS;
+ break;
+ }
break;
default:
break;
@@ -829,45 +832,15 @@
ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
}
-static void ath9k_ht_conf(struct ath_softc *sc,
- struct ieee80211_bss_conf *bss_conf)
-{
- if (sc->hw->conf.ht.enabled) {
- if (bss_conf->ht.width_40_ok)
- sc->tx_chan_width = ATH9K_HT_MACMODE_2040;
- else
- sc->tx_chan_width = ATH9K_HT_MACMODE_20;
-
- ath9k_hw_set11nmac2040(sc->sc_ah, sc->tx_chan_width);
-
- DPRINTF(sc, ATH_DBG_CONFIG,
- "BSS Changed HT, chanwidth: %d\n", sc->tx_chan_width);
- }
-}
-
-static inline int ath_sec_offset(u8 ext_offset)
-{
- if (ext_offset == IEEE80211_HT_PARAM_CHA_SEC_NONE)
- return 0;
- else if (ext_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE)
- return 1;
- else if (ext_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW)
- return -1;
-
- return 0;
-}
-
static void ath9k_bss_assoc_info(struct ath_softc *sc,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *bss_conf)
{
- struct ieee80211_hw *hw = sc->hw;
- struct ieee80211_channel *curchan = hw->conf.channel;
struct ath_vap *avp = (void *)vif->drv_priv;
- int pos;
if (bss_conf->assoc) {
- DPRINTF(sc, ATH_DBG_CONFIG, "Bss Info ASSOC %d\n", bss_conf->aid);
+ DPRINTF(sc, ATH_DBG_CONFIG, "Bss Info ASSOC %d, bssid: %pM\n",
+ bss_conf->aid, sc->sc_curbssid);
/* New association, store aid */
if (avp->av_opmode == NL80211_IFTYPE_STATION) {
@@ -886,40 +859,6 @@
sc->sc_halstats.ns_avgtxrssi = ATH_RSSI_DUMMY_MARKER;
sc->sc_halstats.ns_avgtxrate = ATH_RATE_DUMMY_MARKER;
- /* Update chainmask */
- ath_update_chainmask(sc, hw->conf.ht.enabled);
-
- DPRINTF(sc, ATH_DBG_CONFIG,
- "bssid %pM aid 0x%x\n",
- sc->sc_curbssid, sc->sc_curaid);
-
- pos = ath_get_channel(sc, curchan);
- if (pos == -1) {
- DPRINTF(sc, ATH_DBG_FATAL,
- "Invalid channel: %d\n", curchan->center_freq);
- return;
- }
-
- if (hw->conf.ht.enabled) {
- int offset =
- ath_sec_offset(bss_conf->ht.secondary_channel_offset);
- sc->tx_chan_width = (bss_conf->ht.width_40_ok) ?
- ATH9K_HT_MACMODE_2040 : ATH9K_HT_MACMODE_20;
-
- sc->sc_ah->ah_channels[pos].chanmode =
- ath_get_extchanmode(sc, curchan,
- offset, sc->tx_chan_width);
- } else {
- sc->sc_ah->ah_channels[pos].chanmode =
- (curchan->band == IEEE80211_BAND_2GHZ) ?
- CHANNEL_G : CHANNEL_A;
- }
-
- /* set h/w channel */
- if (ath_set_channel(sc, &sc->sc_ah->ah_channels[pos]) < 0)
- DPRINTF(sc, ATH_DBG_FATAL, "Unable to set channel: %d\n",
- curchan->center_freq);
-
/* Start ANI */
mod_timer(&sc->sc_ani.timer,
jiffies + msecs_to_jiffies(ATH_ANI_POLLINTERVAL));
@@ -2146,7 +2085,8 @@
struct ath_softc *sc = hw->priv;
struct ieee80211_conf *conf = &hw->conf;
- if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
+ if (changed & (IEEE80211_CONF_CHANGE_CHANNEL |
+ IEEE80211_CONF_CHANGE_HT)) {
struct ieee80211_channel *curchan = hw->conf.channel;
int pos;
@@ -2165,25 +2105,23 @@
(curchan->band == IEEE80211_BAND_2GHZ) ?
CHANNEL_G : CHANNEL_A;
- if ((sc->sc_ah->ah_opmode == NL80211_IFTYPE_AP) &&
- (conf->ht.enabled)) {
- sc->tx_chan_width = (!!conf->ht.sec_chan_offset) ?
- ATH9K_HT_MACMODE_2040 : ATH9K_HT_MACMODE_20;
+ if (conf->ht.enabled) {
+ if (conf->ht.channel_type == NL80211_CHAN_HT40PLUS ||
+ conf->ht.channel_type == NL80211_CHAN_HT40MINUS)
+ sc->tx_chan_width = ATH9K_HT_MACMODE_2040;
sc->sc_ah->ah_channels[pos].chanmode =
ath_get_extchanmode(sc, curchan,
- conf->ht.sec_chan_offset,
- sc->tx_chan_width);
+ conf->ht.channel_type);
}
if (ath_set_channel(sc, &sc->sc_ah->ah_channels[pos]) < 0) {
DPRINTF(sc, ATH_DBG_FATAL, "Unable to set channel\n");
return -EINVAL;
}
- }
- if (changed & IEEE80211_CONF_CHANGE_HT)
ath_update_chainmask(sc, conf->ht.enabled);
+ }
if (changed & IEEE80211_CONF_CHANGE_POWER)
sc->sc_config.txpowlimit = 2 * conf->power_level;
@@ -2417,9 +2355,6 @@
sc->sc_flags &= ~SC_OP_PROTECT_ENABLE;
}
- if (changed & BSS_CHANGED_HT)
- ath9k_ht_conf(sc, bss_conf);
-
if (changed & BSS_CHANGED_ASSOC) {
DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed ASSOC %d\n",
bss_conf->assoc);
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 2f5e86e..bbc1c80 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -515,19 +515,27 @@
iwl_conf->supported_chan_width =
!!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40);
- iwl_conf->extension_chan_offset = bss_conf->ht.secondary_channel_offset;
+ /*
+ * XXX: The HT configuration needs to be moved into iwl_mac_config()
+ * to be done there correctly.
+ */
+
+ iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
+ if (priv->hw->conf.ht.channel_type == NL80211_CHAN_HT40MINUS)
+ iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
+ else if(priv->hw->conf.ht.channel_type == NL80211_CHAN_HT40PLUS)
+ iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
+
/* If no above or below channel supplied disable FAT channel */
if (iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_ABOVE &&
- iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_BELOW) {
- iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
+ iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_BELOW)
iwl_conf->supported_chan_width = 0;
- }
iwl_conf->sm_ps = (u8)((ht_conf->cap & IEEE80211_HT_CAP_SM_PS) >> 2);
memcpy(&iwl_conf->mcs, &ht_conf->mcs, 16);
- iwl_conf->tx_chan_width = bss_conf->ht.width_40_ok;
+ iwl_conf->tx_chan_width = iwl_conf->supported_chan_width != 0;
iwl_conf->ht_protection =
bss_conf->ht.operation_mode & IEEE80211_HT_OP_MODE_PROTECTION;
iwl_conf->non_GF_STA_present =
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index fd5a537a..f83d69e 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -495,11 +495,9 @@
}
if (changed & BSS_CHANGED_HT) {
- printk(KERN_DEBUG " %s: HT: sec_ch_offs=%d width_40_ok=%d "
- "op_mode=%d\n",
+ printk(KERN_DEBUG " %s: HT: op_mode=0x%x\n",
wiphy_name(hw->wiphy),
- info->ht.secondary_channel_offset,
- info->ht.width_40_ok, info->ht.operation_mode);
+ info->ht.operation_mode);
}
if (changed & BSS_CHANGED_BASIC_RATES) {
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 7501acf..e86ed59 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -201,13 +201,13 @@
* @NL80211_ATTR_WIPHY_NAME: wiphy name (used for renaming)
* @NL80211_ATTR_WIPHY_TXQ_PARAMS: a nested array of TX queue parameters
* @NL80211_ATTR_WIPHY_FREQ: frequency of the selected channel in MHz
- * @NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET: included with NL80211_ATTR_WIPHY_FREQ
+ * @NL80211_ATTR_WIPHY_CHANNEL_TYPE: included with NL80211_ATTR_WIPHY_FREQ
* if HT20 or HT40 are allowed (i.e., 802.11n disabled if not included):
- * NL80211_SEC_CHAN_NO_HT = HT not allowed (i.e., same as not including
+ * NL80211_CHAN_NO_HT = HT not allowed (i.e., same as not including
* this attribute)
- * NL80211_SEC_CHAN_DISABLED = HT20 only
- * NL80211_SEC_CHAN_BELOW = secondary channel is below the primary channel
- * NL80211_SEC_CHAN_ABOVE = secondary channel is above the primary channel
+ * NL80211_CHAN_HT20 = HT20 only
+ * NL80211_CHAN_HT40MINUS = secondary channel is below the primary channel
+ * NL80211_CHAN_HT40PLUS = secondary channel is above the primary channel
*
* @NL80211_ATTR_IFINDEX: network interface index of the device to operate on
* @NL80211_ATTR_IFNAME: network interface name
@@ -344,7 +344,7 @@
NL80211_ATTR_WIPHY_TXQ_PARAMS,
NL80211_ATTR_WIPHY_FREQ,
- NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET,
+ NL80211_ATTR_WIPHY_CHANNEL_TYPE,
/* add attributes here, update the policy in nl80211.c */
@@ -805,10 +805,10 @@
NL80211_TXQ_Q_BK
};
-enum nl80211_sec_chan_offset {
- NL80211_SEC_CHAN_NO_HT /* No HT */,
- NL80211_SEC_CHAN_DISABLED /* HT20 only */,
- NL80211_SEC_CHAN_BELOW /* HT40- */,
- NL80211_SEC_CHAN_ABOVE /* HT40+ */
+enum nl80211_channel_type {
+ NL80211_CHAN_NO_HT,
+ NL80211_CHAN_HT20,
+ NL80211_CHAN_HT40MINUS,
+ NL80211_CHAN_HT40PLUS
};
#endif /* __LINUX_NL80211_H */
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 65e03ac..23c0ab7 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -563,7 +563,7 @@
int (*set_channel)(struct wiphy *wiphy,
struct ieee80211_channel *chan,
- enum nl80211_sec_chan_offset);
+ enum nl80211_channel_type channel_type);
};
/* temporary wext handlers */
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 046ce69..22ae72c 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -165,14 +165,9 @@
/**
* struct ieee80211_bss_ht_conf - BSS's changing HT configuration
- * @secondary_channel_offset: secondary channel offset, uses
- * %IEEE80211_HT_PARAM_CHA_SEC_ values
- * @width_40_ok: indicates that 40 MHz bandwidth may be used for TX
* @operation_mode: HT operation mode (like in &struct ieee80211_ht_info)
*/
struct ieee80211_bss_ht_conf {
- u8 secondary_channel_offset;
- bool width_40_ok;
u16 operation_mode;
};
@@ -508,9 +503,7 @@
struct ieee80211_ht_conf {
bool enabled;
- int sec_chan_offset; /* 0 = HT40 disabled; -1 = HT40 enabled, secondary
- * channel below primary; 1 = HT40 enabled,
- * secondary channel above primary */
+ enum nl80211_channel_type channel_type;
};
/**
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 23b5eea..3ea0884 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1122,12 +1122,12 @@
static int ieee80211_set_channel(struct wiphy *wiphy,
struct ieee80211_channel *chan,
- enum nl80211_sec_chan_offset sec_chan_offset)
+ enum nl80211_channel_type channel_type)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
local->oper_channel = chan;
- local->oper_sec_chan_offset = sec_chan_offset;
+ local->oper_channel_type = channel_type;
return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
}
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index a1eed70..5f510a1 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -98,6 +98,7 @@
struct ieee80211_bss_ht_conf ht;
u32 changed = 0;
bool enable_ht = true, ht_changed;
+ enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
@@ -112,24 +113,36 @@
ieee80211_channel_to_frequency(hti->control_chan))
enable_ht = false;
- /*
- * XXX: This is totally incorrect when there are multiple virtual
- * interfaces, needs to be fixed later.
- */
- ht_changed = local->hw.conf.ht.enabled != enable_ht;
+ if (enable_ht) {
+ channel_type = NL80211_CHAN_HT20;
+
+ if (!(ap_ht_cap_flags & IEEE80211_HT_CAP_40MHZ_INTOLERANT) &&
+ (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) &&
+ (hti->ht_param & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY)) {
+ switch(hti->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
+ case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
+ channel_type = NL80211_CHAN_HT40PLUS;
+ break;
+ case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
+ channel_type = NL80211_CHAN_HT40MINUS;
+ break;
+ }
+ }
+ }
+
+ ht_changed = local->hw.conf.ht.enabled != enable_ht ||
+ channel_type != local->hw.conf.ht.channel_type;
+
+ local->oper_channel_type = channel_type;
local->hw.conf.ht.enabled = enable_ht;
+
if (ht_changed)
ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_HT);
/* disable HT */
if (!enable_ht)
return 0;
- ht.secondary_channel_offset =
- hti->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
- ht.width_40_ok =
- !(ap_ht_cap_flags & IEEE80211_HT_CAP_40MHZ_INTOLERANT) &&
- (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) &&
- (hti->ht_param & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY);
+
ht.operation_mode = le16_to_cpu(hti->operation_mode);
/* if bss configuration changed store the new one */
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 6f59e11..a7dabae 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -625,7 +625,7 @@
struct delayed_work scan_work;
struct ieee80211_sub_if_data *scan_sdata;
struct ieee80211_channel *oper_channel, *scan_channel;
- enum nl80211_sec_chan_offset oper_sec_chan_offset;
+ enum nl80211_channel_type oper_channel_type;
u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
size_t scan_ssid_len;
struct list_head bss_list;
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 6d87103..a0371ca 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -195,37 +195,30 @@
struct ieee80211_channel *chan;
int ret = 0;
int power;
- enum nl80211_sec_chan_offset sec_chan_offset;
+ enum nl80211_channel_type channel_type;
might_sleep();
if (local->sw_scanning) {
chan = local->scan_channel;
- sec_chan_offset = NL80211_SEC_CHAN_NO_HT;
+ channel_type = NL80211_CHAN_NO_HT;
} else {
chan = local->oper_channel;
- sec_chan_offset = local->oper_sec_chan_offset;
+ channel_type = local->oper_channel_type;
}
if (chan != local->hw.conf.channel ||
- sec_chan_offset != local->hw.conf.ht.sec_chan_offset) {
+ channel_type != local->hw.conf.ht.channel_type) {
local->hw.conf.channel = chan;
- switch (sec_chan_offset) {
- case NL80211_SEC_CHAN_NO_HT:
+ local->hw.conf.ht.channel_type = channel_type;
+ switch (channel_type) {
+ case NL80211_CHAN_NO_HT:
local->hw.conf.ht.enabled = false;
- local->hw.conf.ht.sec_chan_offset = 0;
break;
- case NL80211_SEC_CHAN_DISABLED:
+ case NL80211_CHAN_HT20:
+ case NL80211_CHAN_HT40MINUS:
+ case NL80211_CHAN_HT40PLUS:
local->hw.conf.ht.enabled = true;
- local->hw.conf.ht.sec_chan_offset = 0;
- break;
- case NL80211_SEC_CHAN_BELOW:
- local->hw.conf.ht.enabled = true;
- local->hw.conf.ht.sec_chan_offset = -1;
- break;
- case NL80211_SEC_CHAN_ABOVE:
- local->hw.conf.ht.enabled = true;
- local->hw.conf.ht.sec_chan_offset = 1;
break;
}
changed |= IEEE80211_CONF_CHANGE_CHANNEL;
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 290b001..e4d1fca 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -858,6 +858,7 @@
rcu_read_unlock();
local->hw.conf.ht.enabled = false;
+ local->oper_channel_type = NL80211_CHAN_NO_HT;
ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_HT);
ieee80211_bss_info_change_notify(sdata, changed);
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 505d68f..71a8391 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -641,7 +641,7 @@
chan->flags & IEEE80211_CHAN_NO_IBSS)
return ret;
local->oper_channel = chan;
- local->oper_sec_chan_offset = NL80211_SEC_CHAN_NO_HT;
+ local->oper_channel_type = NL80211_CHAN_NO_HT;
if (local->sw_scanning || local->hw_scanning)
ret = 0;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 93c9b98..1e728ff 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -60,7 +60,7 @@
.len = BUS_ID_SIZE-1 },
[NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
[NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
- [NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET] = { .type = NLA_U32 },
+ [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
[NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
[NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
@@ -362,8 +362,7 @@
}
if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
- enum nl80211_sec_chan_offset sec_chan_offset =
- NL80211_SEC_CHAN_NO_HT;
+ enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
struct ieee80211_channel *chan;
struct ieee80211_sta_ht_cap *ht_cap;
u32 freq, sec_freq;
@@ -375,13 +374,13 @@
result = -EINVAL;
- if (info->attrs[NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET]) {
- sec_chan_offset = nla_get_u32(info->attrs[
- NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET]);
- if (sec_chan_offset != NL80211_SEC_CHAN_NO_HT &&
- sec_chan_offset != NL80211_SEC_CHAN_DISABLED &&
- sec_chan_offset != NL80211_SEC_CHAN_BELOW &&
- sec_chan_offset != NL80211_SEC_CHAN_ABOVE)
+ if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
+ channel_type = nla_get_u32(info->attrs[
+ NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
+ if (channel_type != NL80211_CHAN_NO_HT &&
+ channel_type != NL80211_CHAN_HT20 &&
+ channel_type != NL80211_CHAN_HT40PLUS &&
+ channel_type != NL80211_CHAN_HT40MINUS)
goto bad_res;
}
@@ -392,9 +391,9 @@
if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
goto bad_res;
- if (sec_chan_offset == NL80211_SEC_CHAN_BELOW)
+ if (channel_type == NL80211_CHAN_HT40MINUS)
sec_freq = freq - 20;
- else if (sec_chan_offset == NL80211_SEC_CHAN_ABOVE)
+ else if (channel_type == NL80211_CHAN_HT40PLUS)
sec_freq = freq + 20;
else
sec_freq = 0;
@@ -402,7 +401,7 @@
ht_cap = &rdev->wiphy.bands[chan->band]->ht_cap;
/* no HT capabilities */
- if (sec_chan_offset != NL80211_SEC_CHAN_NO_HT &&
+ if (channel_type != NL80211_CHAN_NO_HT &&
!ht_cap->ht_supported)
goto bad_res;
@@ -422,7 +421,7 @@
}
result = rdev->ops->set_channel(&rdev->wiphy, chan,
- sec_chan_offset);
+ channel_type);
if (result)
goto bad_res;
}
