static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv,
struct ieee80211_hw *hw,
struct ath9k_channel *hchan)
{
struct ath_hw *ah = priv->ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ieee80211_conf *conf = &common->hw->conf;
bool fastcc;
struct ieee80211_channel *channel = hw->conf.chandef.chan;
struct ath9k_hw_cal_data *caldata = NULL;
enum htc_phymode mode;
__be16 htc_mode;
u8 cmd_rsp;
int ret;
if (test_bit(OP_INVALID, &priv->op_flags))
return -EIO;
fastcc = !!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL);
ath9k_htc_ps_wakeup(priv);
del_timer_sync(&priv->tx.cleanup_timer);
ath9k_htc_tx_drain(priv);
WMI_CMD(WMI_DISABLE_INTR_CMDID);
WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
WMI_CMD(WMI_STOP_RECV_CMDID);
ath9k_wmi_event_drain(priv);
ath_dbg(common, CONFIG,
"(%u MHz) -> (%u MHz), HT: %d, HT40: %d fastcc: %d\n",
priv->ah->curchan->channel,
channel->center_freq, conf_is_ht(conf), conf_is_ht40(conf),
fastcc);
if (!fastcc)
caldata = &priv->caldata;
ret = ath9k_hw_reset(ah, hchan, caldata, fastcc);
if (ret) {
ath_err(common,
"Unable to reset channel (%u Mhz) reset status %d\n",
channel->center_freq, ret);
goto err;
}
ath9k_cmn_update_txpow(ah, priv->curtxpow, priv->txpowlimit,
&priv->curtxpow);
WMI_CMD(WMI_START_RECV_CMDID);
if (ret)
goto err;
ath9k_host_rx_init(priv);
mode = ath9k_htc_get_curmode(priv, hchan);
htc_mode = cpu_to_be16(mode);
WMI_CMD_BUF(WMI_SET_MODE_CMDID, &htc_mode);
if (ret)
goto err;
WMI_CMD(WMI_ENABLE_INTR_CMDID);
if (ret)
goto err;
htc_start(priv->htc);
if (!test_bit(OP_SCANNING, &priv->op_flags) &&
!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL))
ath9k_htc_vif_reconfig(priv);
mod_timer(&priv->tx.cleanup_timer,
jiffies + msecs_to_jiffies(ATH9K_HTC_TX_CLEANUP_INTERVAL));
err:
ath9k_htc_ps_restore(priv);
return ret;
}
static void ath9k_htc_beacon_config_sta(struct ath9k_htc_priv *priv,
struct htc_beacon_config *bss_conf)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
struct ath9k_beacon_state bs;
enum ath9k_int imask = 0;
int dtimperiod, dtimcount, sleepduration;
int cfpperiod, cfpcount, bmiss_timeout;
u32 nexttbtt = 0, intval, tsftu;
__be32 htc_imask = 0;
u64 tsf;
int num_beacons, offset, dtim_dec_count, cfp_dec_count;
int ret __attribute__ ((unused));
u8 cmd_rsp;
memset(&bs, 0, sizeof(bs));
intval = bss_conf->beacon_interval;
bmiss_timeout = (ATH_DEFAULT_BMISS_LIMIT * bss_conf->beacon_interval);
/*
* Setup dtim and cfp parameters according to
* last beacon we received (which may be none).
*/
dtimperiod = bss_conf->dtim_period;
if (dtimperiod <= 0) /* NB: 0 if not known */
dtimperiod = 1;
dtimcount = 1;
if (dtimcount >= dtimperiod) /* NB: sanity check */
dtimcount = 0;
cfpperiod = 1; /* NB: no PCF support yet */
cfpcount = 0;
sleepduration = intval;
if (sleepduration <= 0)
sleepduration = intval;
/*
* Pull nexttbtt forward to reflect the current
* TSF and calculate dtim+cfp state for the result.
*/
tsf = ath9k_hw_gettsf64(priv->ah);
tsftu = TSF_TO_TU(tsf>>32, tsf) + FUDGE;
num_beacons = tsftu / intval + 1;
offset = tsftu % intval;
nexttbtt = tsftu - offset;
if (offset)
nexttbtt += intval;
/* DTIM Beacon every dtimperiod Beacon */
dtim_dec_count = num_beacons % dtimperiod;
/* CFP every cfpperiod DTIM Beacon */
cfp_dec_count = (num_beacons / dtimperiod) % cfpperiod;
if (dtim_dec_count)
cfp_dec_count++;
dtimcount -= dtim_dec_count;
if (dtimcount < 0)
dtimcount += dtimperiod;
cfpcount -= cfp_dec_count;
if (cfpcount < 0)
cfpcount += cfpperiod;
bs.bs_intval = intval;
bs.bs_nexttbtt = nexttbtt;
bs.bs_dtimperiod = dtimperiod*intval;
bs.bs_nextdtim = bs.bs_nexttbtt + dtimcount*intval;
bs.bs_cfpperiod = cfpperiod*bs.bs_dtimperiod;
bs.bs_cfpnext = bs.bs_nextdtim + cfpcount*bs.bs_dtimperiod;
bs.bs_cfpmaxduration = 0;
/*
* Calculate the number of consecutive beacons to miss* before taking
* a BMISS interrupt. The configuration is specified in TU so we only
* need calculate based on the beacon interval. Note that we clamp the
* result to at most 15 beacons.
*/
if (sleepduration > intval) {
bs.bs_bmissthreshold = ATH_DEFAULT_BMISS_LIMIT / 2;
} else {
bs.bs_bmissthreshold = DIV_ROUND_UP(bmiss_timeout, intval);
if (bs.bs_bmissthreshold > 15)
bs.bs_bmissthreshold = 15;
else if (bs.bs_bmissthreshold <= 0)
bs.bs_bmissthreshold = 1;
}
/*
* Calculate sleep duration. The configuration is given in ms.
* We ensure a multiple of the beacon period is used. Also, if the sleep
* duration is greater than the DTIM period then it makes senses
* to make it a multiple of that.
*
* XXX fixed at 100ms
*/
bs.bs_sleepduration = roundup(IEEE80211_MS_TO_TU(100), sleepduration);
if (bs.bs_sleepduration > bs.bs_dtimperiod)
bs.bs_sleepduration = bs.bs_dtimperiod;
/* TSF out of range threshold fixed at 1 second */
bs.bs_tsfoor_threshold = ATH9K_TSFOOR_THRESHOLD;
ath_dbg(common, ATH_DBG_CONFIG, "intval: %u tsf: %llu tsftu: %u\n",
intval, tsf, tsftu);
ath_dbg(common, ATH_DBG_CONFIG,
"bmiss: %u sleep: %u cfp-period: %u maxdur: %u next: %u\n",
bs.bs_bmissthreshold, bs.bs_sleepduration,
bs.bs_cfpperiod, bs.bs_cfpmaxduration, bs.bs_cfpnext);
/* Set the computed STA beacon timers */
WMI_CMD(WMI_DISABLE_INTR_CMDID);
ath9k_hw_set_sta_beacon_timers(priv->ah, &bs);
imask |= ATH9K_INT_BMISS;
htc_imask = cpu_to_be32(imask);
WMI_CMD_BUF(WMI_ENABLE_INTR_CMDID, &htc_imask);
}
static int ath9k_htc_add_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct ath9k_htc_priv *priv = hw->priv;
struct ath9k_htc_vif *avp = (void *)vif->drv_priv;
struct ath_common *common = ath9k_hw_common(priv->ah);
struct ath9k_htc_target_vif hvif;
int ret = 0;
u8 cmd_rsp;
mutex_lock(&priv->mutex);
ath9k_htc_ps_wakeup(priv);
memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
memcpy(&hvif.myaddr, vif->addr, ETH_ALEN);
switch (vif->type) {
case NL80211_IFTYPE_STATION:
hvif.opmode = HTC_M_STA;
break;
case NL80211_IFTYPE_ADHOC:
hvif.opmode = HTC_M_IBSS;
break;
case NL80211_IFTYPE_AP:
hvif.opmode = HTC_M_HOSTAP;
break;
default:
ath_err(common,
"Interface type %d not yet supported\n", vif->type);
ret = -EOPNOTSUPP;
goto out;
}
/* Index starts from zero on the target */
avp->index = hvif.index = ffz(priv->vif_slot);
hvif.rtsthreshold = cpu_to_be16(2304);
WMI_CMD_BUF(WMI_VAP_CREATE_CMDID, &hvif);
if (ret)
goto out;
/*
* We need a node in target to tx mgmt frames
* before association.
*/
ret = ath9k_htc_add_station(priv, vif, NULL);
if (ret) {
WMI_CMD_BUF(WMI_VAP_REMOVE_CMDID, &hvif);
goto out;
}
ath9k_htc_set_bssid_mask(priv, vif);
priv->vif_slot |= (1 << avp->index);
priv->nvifs++;
INC_VIF(priv, vif->type);
if ((vif->type == NL80211_IFTYPE_AP) ||
(vif->type == NL80211_IFTYPE_ADHOC))
ath9k_htc_assign_bslot(priv, vif);
ath9k_htc_set_opmode(priv);
if ((priv->ah->opmode == NL80211_IFTYPE_AP) &&
!test_bit(OP_ANI_RUNNING, &priv->op_flags)) {
ath9k_hw_set_tsfadjust(priv->ah, true);
ath9k_htc_start_ani(priv);
}
ath_dbg(common, CONFIG, "Attach a VIF of type: %d at idx: %d\n",
vif->type, avp->index);
out:
ath9k_htc_ps_restore(priv);
mutex_unlock(&priv->mutex);
return ret;
}
static int ath9k_htc_start(struct ieee80211_hw *hw)
{
struct ath9k_htc_priv *priv = hw->priv;
struct ath_hw *ah = priv->ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ieee80211_channel *curchan = hw->conf.channel;
struct ath9k_channel *init_channel;
int ret = 0;
enum htc_phymode mode;
__be16 htc_mode;
u8 cmd_rsp;
mutex_lock(&priv->mutex);
ath_dbg(common, CONFIG,
"Starting driver with initial channel: %d MHz\n",
curchan->center_freq);
/* Ensure that HW is awake before flushing RX */
ath9k_htc_setpower(priv, ATH9K_PM_AWAKE);
WMI_CMD(WMI_FLUSH_RECV_CMDID);
/* setup initial channel */
init_channel = ath9k_cmn_get_curchannel(hw, ah);
ret = ath9k_hw_reset(ah, init_channel, ah->caldata, false);
if (ret) {
ath_err(common,
"Unable to reset hardware; reset status %d (freq %u MHz)\n",
ret, curchan->center_freq);
mutex_unlock(&priv->mutex);
return ret;
}
ath9k_cmn_update_txpow(ah, priv->curtxpow, priv->txpowlimit,
&priv->curtxpow);
mode = ath9k_htc_get_curmode(priv, init_channel);
htc_mode = cpu_to_be16(mode);
WMI_CMD_BUF(WMI_SET_MODE_CMDID, &htc_mode);
WMI_CMD(WMI_ATH_INIT_CMDID);
WMI_CMD(WMI_START_RECV_CMDID);
ath9k_host_rx_init(priv);
ret = ath9k_htc_update_cap_target(priv, 0);
if (ret)
ath_dbg(common, CONFIG,
"Failed to update capability in target\n");
clear_bit(OP_INVALID, &priv->op_flags);
htc_start(priv->htc);
spin_lock_bh(&priv->tx.tx_lock);
priv->tx.flags &= ~ATH9K_HTC_OP_TX_QUEUES_STOP;
spin_unlock_bh(&priv->tx.tx_lock);
ieee80211_wake_queues(hw);
mod_timer(&priv->tx.cleanup_timer,
jiffies + msecs_to_jiffies(ATH9K_HTC_TX_CLEANUP_INTERVAL));
ath9k_htc_start_btcoex(priv);
mutex_unlock(&priv->mutex);
return ret;
}
static void ath9k_htc_beacon_config_sta(struct ath9k_htc_priv *priv,
struct htc_beacon_config *bss_conf)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
struct ath9k_beacon_state bs;
enum ath9k_int imask = 0;
int dtimperiod, dtimcount, sleepduration;
int cfpperiod, cfpcount, bmiss_timeout;
u32 nexttbtt = 0, intval, tsftu;
__be32 htc_imask = 0;
u64 tsf;
int num_beacons, offset, dtim_dec_count, cfp_dec_count;
int ret __attribute__ ((unused));
u8 cmd_rsp;
memset(&bs, 0, sizeof(bs));
intval = bss_conf->beacon_interval;
bmiss_timeout = (ATH_DEFAULT_BMISS_LIMIT * bss_conf->beacon_interval);
/*
*/
dtimperiod = bss_conf->dtim_period;
if (dtimperiod <= 0) /* */
dtimperiod = 1;
dtimcount = 1;
if (dtimcount >= dtimperiod) /* */
dtimcount = 0;
cfpperiod = 1; /* */
cfpcount = 0;
sleepduration = intval;
if (sleepduration <= 0)
sleepduration = intval;
/*
*/
tsf = ath9k_hw_gettsf64(priv->ah);
tsftu = TSF_TO_TU(tsf>>32, tsf) + FUDGE;
num_beacons = tsftu / intval + 1;
offset = tsftu % intval;
nexttbtt = tsftu - offset;
if (offset)
nexttbtt += intval;
/* */
dtim_dec_count = num_beacons % dtimperiod;
/* */
cfp_dec_count = (num_beacons / dtimperiod) % cfpperiod;
if (dtim_dec_count)
cfp_dec_count++;
dtimcount -= dtim_dec_count;
if (dtimcount < 0)
dtimcount += dtimperiod;
cfpcount -= cfp_dec_count;
if (cfpcount < 0)
cfpcount += cfpperiod;
bs.bs_intval = intval;
bs.bs_nexttbtt = nexttbtt;
bs.bs_dtimperiod = dtimperiod*intval;
bs.bs_nextdtim = bs.bs_nexttbtt + dtimcount*intval;
bs.bs_cfpperiod = cfpperiod*bs.bs_dtimperiod;
bs.bs_cfpnext = bs.bs_nextdtim + cfpcount*bs.bs_dtimperiod;
bs.bs_cfpmaxduration = 0;
/*
*/
if (sleepduration > intval) {
bs.bs_bmissthreshold = ATH_DEFAULT_BMISS_LIMIT / 2;
} else {
bs.bs_bmissthreshold = DIV_ROUND_UP(bmiss_timeout, intval);
if (bs.bs_bmissthreshold > 15)
bs.bs_bmissthreshold = 15;
else if (bs.bs_bmissthreshold <= 0)
bs.bs_bmissthreshold = 1;
}
/*
*/
bs.bs_sleepduration = roundup(IEEE80211_MS_TO_TU(100), sleepduration);
if (bs.bs_sleepduration > bs.bs_dtimperiod)
bs.bs_sleepduration = bs.bs_dtimperiod;
/* */
bs.bs_tsfoor_threshold = ATH9K_TSFOOR_THRESHOLD;
ath_dbg(common, CONFIG, "intval: %u tsf: %llu tsftu: %u\n",
intval, tsf, tsftu);
ath_dbg(common, CONFIG,
"bmiss: %u sleep: %u cfp-period: %u maxdur: %u next: %u\n",
bs.bs_bmissthreshold, bs.bs_sleepduration,
bs.bs_cfpperiod, bs.bs_cfpmaxduration, bs.bs_cfpnext);
/* */
WMI_CMD(WMI_DISABLE_INTR_CMDID);
ath9k_hw_set_sta_beacon_timers(priv->ah, &bs);
imask |= ATH9K_INT_BMISS;
htc_imask = cpu_to_be32(imask);
WMI_CMD_BUF(WMI_ENABLE_INTR_CMDID, &htc_imask);
}
static int ath9k_htc_add_monitor_interface(struct ath9k_htc_priv *priv)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
struct ath9k_htc_target_vif hvif;
struct ath9k_htc_target_sta tsta;
int ret = 0, sta_idx;
u8 cmd_rsp;
if ((priv->nvifs >= ATH9K_HTC_MAX_VIF) ||
(priv->nstations >= ATH9K_HTC_MAX_STA)) {
ret = -ENOBUFS;
goto err_vif;
}
sta_idx = ffz(priv->sta_slot);
if ((sta_idx < 0) || (sta_idx > ATH9K_HTC_MAX_STA)) {
ret = -ENOBUFS;
goto err_vif;
}
/*
* Add an interface.
*/
memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
memcpy(&hvif.myaddr, common->macaddr, ETH_ALEN);
hvif.opmode = HTC_M_MONITOR;
hvif.index = ffz(priv->vif_slot);
WMI_CMD_BUF(WMI_VAP_CREATE_CMDID, &hvif);
if (ret)
goto err_vif;
/*
* Assign the monitor interface index as a special case here.
* This is needed when the interface is brought down.
*/
priv->mon_vif_idx = hvif.index;
priv->vif_slot |= (1 << hvif.index);
/*
* Set the hardware mode to monitor only if there are no
* other interfaces.
*/
if (!priv->nvifs)
priv->ah->opmode = NL80211_IFTYPE_MONITOR;
priv->nvifs++;
/*
* Associate a station with the interface for packet injection.
*/
memset(&tsta, 0, sizeof(struct ath9k_htc_target_sta));
memcpy(&tsta.macaddr, common->macaddr, ETH_ALEN);
tsta.is_vif_sta = 1;
tsta.sta_index = sta_idx;
tsta.vif_index = hvif.index;
tsta.maxampdu = cpu_to_be16(0xffff);
WMI_CMD_BUF(WMI_NODE_CREATE_CMDID, &tsta);
if (ret) {
ath_err(common, "Unable to add station entry for monitor mode\n");
goto err_sta;
}
priv->sta_slot |= (1 << sta_idx);
priv->nstations++;
priv->vif_sta_pos[priv->mon_vif_idx] = sta_idx;
priv->ah->is_monitoring = true;
ath_dbg(common, CONFIG,
"Attached a monitor interface at idx: %d, sta idx: %d\n",
priv->mon_vif_idx, sta_idx);
return 0;
err_sta:
/*
* Remove the interface from the target.
*/
__ath9k_htc_remove_monitor_interface(priv);
err_vif:
ath_dbg(common, FATAL, "Unable to attach a monitor interface\n");
return ret;
}
static int ath9k_htc_add_station(struct ath9k_htc_priv *priv,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
struct ath9k_htc_target_sta tsta;
struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *) vif->drv_priv;
struct ath9k_htc_sta *ista;
int ret, sta_idx;
u8 cmd_rsp;
u16 maxampdu;
if (priv->nstations >= ATH9K_HTC_MAX_STA)
return -ENOBUFS;
sta_idx = ffz(priv->sta_slot);
if ((sta_idx < 0) || (sta_idx > ATH9K_HTC_MAX_STA))
return -ENOBUFS;
memset(&tsta, 0, sizeof(struct ath9k_htc_target_sta));
if (sta) {
ista = (struct ath9k_htc_sta *) sta->drv_priv;
memcpy(&tsta.macaddr, sta->addr, ETH_ALEN);
memcpy(&tsta.bssid, common->curbssid, ETH_ALEN);
ista->index = sta_idx;
tsta.is_vif_sta = 0;
maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
sta->ht_cap.ampdu_factor);
tsta.maxampdu = cpu_to_be16(maxampdu);
} else {
memcpy(&tsta.macaddr, vif->addr, ETH_ALEN);
tsta.is_vif_sta = 1;
tsta.maxampdu = cpu_to_be16(0xffff);
}
tsta.sta_index = sta_idx;
tsta.vif_index = avp->index;
WMI_CMD_BUF(WMI_NODE_CREATE_CMDID, &tsta);
if (ret) {
if (sta)
ath_err(common,
"Unable to add station entry for: %pM\n",
sta->addr);
return ret;
}
if (sta) {
ath_dbg(common, CONFIG,
"Added a station entry for: %pM (idx: %d)\n",
sta->addr, tsta.sta_index);
} else {
ath_dbg(common, CONFIG,
"Added a station entry for VIF %d (idx: %d)\n",
avp->index, tsta.sta_index);
}
priv->sta_slot |= (1 << sta_idx);
priv->nstations++;
if (!sta)
priv->vif_sta_pos[avp->index] = sta_idx;
return 0;
}
static int ath9k_htc_start(struct ieee80211_hw *hw)
{
struct ath9k_htc_priv *priv = hw->priv;
struct ath_hw *ah = priv->ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ieee80211_channel *curchan = hw->conf.channel;
struct ath9k_channel *init_channel;
int ret = 0;
enum htc_phymode mode;
__be16 htc_mode;
u8 cmd_rsp;
mutex_lock(&priv->mutex);
ath_dbg(common, ATH_DBG_CONFIG,
"Starting driver with initial channel: %d MHz\n",
curchan->center_freq);
/* Ensure that HW is awake before flushing RX */
ath9k_htc_setpower(priv, ATH9K_PM_AWAKE);
WMI_CMD(WMI_FLUSH_RECV_CMDID);
/* setup initial channel */
init_channel = ath9k_cmn_get_curchannel(hw, ah);
ath9k_hw_htc_resetinit(ah);
ret = ath9k_hw_reset(ah, init_channel, ah->caldata, false);
if (ret) {
ath_err(common,
"Unable to reset hardware; reset status %d (freq %u MHz)\n",
ret, curchan->center_freq);
mutex_unlock(&priv->mutex);
return ret;
}
ath_update_txpow(priv);
mode = ath9k_htc_get_curmode(priv, init_channel);
htc_mode = cpu_to_be16(mode);
WMI_CMD_BUF(WMI_SET_MODE_CMDID, &htc_mode);
WMI_CMD(WMI_ATH_INIT_CMDID);
WMI_CMD(WMI_START_RECV_CMDID);
ath9k_host_rx_init(priv);
priv->op_flags &= ~OP_INVALID;
htc_start(priv->htc);
spin_lock_bh(&priv->tx_lock);
priv->tx_queues_stop = false;
spin_unlock_bh(&priv->tx_lock);
ieee80211_wake_queues(hw);
if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) {
ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT,
AR_STOMP_LOW_WLAN_WGHT);
ath9k_hw_btcoex_enable(ah);
ath_htc_resume_btcoex_work(priv);
}
mutex_unlock(&priv->mutex);
return ret;
}
static int ath9k_htc_add_monitor_interface(struct ath9k_htc_priv *priv)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
struct ath9k_htc_target_vif hvif;
struct ath9k_htc_target_sta tsta;
int ret = 0;
u8 cmd_rsp;
if (priv->nvifs > 0)
return -ENOBUFS;
if (priv->nstations >= ATH9K_HTC_MAX_STA)
return -ENOBUFS;
/*
* Add an interface.
*/
memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
memcpy(&hvif.myaddr, common->macaddr, ETH_ALEN);
hvif.opmode = cpu_to_be32(HTC_M_MONITOR);
priv->ah->opmode = NL80211_IFTYPE_MONITOR;
hvif.index = priv->nvifs;
WMI_CMD_BUF(WMI_VAP_CREATE_CMDID, &hvif);
if (ret)
return ret;
priv->nvifs++;
/*
* Associate a station with the interface for packet injection.
*/
memset(&tsta, 0, sizeof(struct ath9k_htc_target_sta));
memcpy(&tsta.macaddr, common->macaddr, ETH_ALEN);
tsta.is_vif_sta = 1;
tsta.sta_index = priv->nstations;
tsta.vif_index = hvif.index;
tsta.maxampdu = 0xffff;
WMI_CMD_BUF(WMI_NODE_CREATE_CMDID, &tsta);
if (ret) {
ath_err(common, "Unable to add station entry for monitor mode\n");
goto err_vif;
}
priv->nstations++;
/*
* Set chainmask etc. on the target.
*/
ret = ath9k_htc_update_cap_target(priv);
if (ret)
ath_dbg(common, ATH_DBG_CONFIG,
"Failed to update capability in target\n");
priv->ah->is_monitoring = true;
return 0;
err_vif:
/*
* Remove the interface from the target.
*/
__ath9k_htc_remove_monitor_interface(priv);
return ret;
}
static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv,
struct ieee80211_hw *hw,
struct ath9k_channel *hchan)
{
struct ath_hw *ah = priv->ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ieee80211_conf *conf = &common->hw->conf;
bool fastcc;
struct ieee80211_channel *channel = hw->conf.channel;
struct ath9k_hw_cal_data *caldata;
enum htc_phymode mode;
__be16 htc_mode;
u8 cmd_rsp;
int ret;
if (priv->op_flags & OP_INVALID)
return -EIO;
fastcc = !!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL);
ath9k_htc_ps_wakeup(priv);
htc_stop(priv->htc);
WMI_CMD(WMI_DISABLE_INTR_CMDID);
WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
WMI_CMD(WMI_STOP_RECV_CMDID);
ath_dbg(common, ATH_DBG_CONFIG,
"(%u MHz) -> (%u MHz), HT: %d, HT40: %d fastcc: %d\n",
priv->ah->curchan->channel,
channel->center_freq, conf_is_ht(conf), conf_is_ht40(conf),
fastcc);
caldata = &priv->caldata[channel->hw_value];
ret = ath9k_hw_reset(ah, hchan, caldata, fastcc);
if (ret) {
ath_err(common,
"Unable to reset channel (%u Mhz) reset status %d\n",
channel->center_freq, ret);
goto err;
}
ath_update_txpow(priv);
WMI_CMD(WMI_START_RECV_CMDID);
if (ret)
goto err;
ath9k_host_rx_init(priv);
mode = ath9k_htc_get_curmode(priv, hchan);
htc_mode = cpu_to_be16(mode);
WMI_CMD_BUF(WMI_SET_MODE_CMDID, &htc_mode);
if (ret)
goto err;
WMI_CMD(WMI_ENABLE_INTR_CMDID);
if (ret)
goto err;
htc_start(priv->htc);
err:
ath9k_htc_ps_restore(priv);
return ret;
}
static int ath9k_htc_add_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct ath9k_htc_priv *priv = hw->priv;
struct ath9k_htc_vif *avp = (void *)vif->drv_priv;
struct ath_common *common = ath9k_hw_common(priv->ah);
struct ath9k_htc_target_vif hvif;
int ret = 0;
u8 cmd_rsp;
mutex_lock(&priv->mutex);
/* Only one interface for now */
if (priv->nvifs > 0) {
ret = -ENOBUFS;
goto out;
}
ath9k_htc_ps_wakeup(priv);
memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
memcpy(&hvif.myaddr, vif->addr, ETH_ALEN);
switch (vif->type) {
case NL80211_IFTYPE_STATION:
hvif.opmode = cpu_to_be32(HTC_M_STA);
break;
case NL80211_IFTYPE_ADHOC:
hvif.opmode = cpu_to_be32(HTC_M_IBSS);
break;
default:
ath_err(common,
"Interface type %d not yet supported\n", vif->type);
ret = -EOPNOTSUPP;
goto out;
}
ath_dbg(common, ATH_DBG_CONFIG,
"Attach a VIF of type: %d\n", vif->type);
priv->ah->opmode = vif->type;
/* Index starts from zero on the target */
avp->index = hvif.index = priv->nvifs;
hvif.rtsthreshold = cpu_to_be16(2304);
WMI_CMD_BUF(WMI_VAP_CREATE_CMDID, &hvif);
if (ret)
goto out;
priv->nvifs++;
/*
* We need a node in target to tx mgmt frames
* before association.
*/
ret = ath9k_htc_add_station(priv, vif, NULL);
if (ret)
goto out;
ret = ath9k_htc_update_cap_target(priv);
if (ret)
ath_dbg(common, ATH_DBG_CONFIG,
"Failed to update capability in target\n");
priv->vif = vif;
out:
ath9k_htc_ps_restore(priv);
mutex_unlock(&priv->mutex);
return ret;
}
static int ath9k_htc_add_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct ath9k_htc_priv *priv = hw->priv;
struct ath9k_htc_vif *avp = (void *)vif->drv_priv;
struct ath_common *common = ath9k_hw_common(priv->ah);
struct ath9k_htc_target_vif hvif;
int ret = 0;
u8 cmd_rsp;
mutex_lock(&priv->mutex);
if (priv->nvifs >= ATH9K_HTC_MAX_VIF) {
mutex_unlock(&priv->mutex);
return -ENOBUFS;
}
if (priv->num_ibss_vif ||
(priv->nvifs && vif->type == NL80211_IFTYPE_ADHOC)) {
ath_err(common, "IBSS coexistence with other modes is not allowed\n");
mutex_unlock(&priv->mutex);
return -ENOBUFS;
}
if (priv->num_mbss_vif ||
(priv->nvifs && vif->type == NL80211_IFTYPE_MESH_POINT)) {
ath_err(common, "Mesh BSS coexistence with other modes is not allowed\n");
mutex_unlock(&priv->mutex);
return -ENOBUFS;
}
if (((vif->type == NL80211_IFTYPE_AP) ||
(vif->type == NL80211_IFTYPE_ADHOC)) &&
((priv->num_ap_vif + priv->num_ibss_vif) >= ATH9K_HTC_MAX_BCN_VIF)) {
ath_err(common, "Max. number of beaconing interfaces reached\n");
mutex_unlock(&priv->mutex);
return -ENOBUFS;
}
ath9k_htc_ps_wakeup(priv);
memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
memcpy(&hvif.myaddr, vif->addr, ETH_ALEN);
switch (vif->type) {
case NL80211_IFTYPE_STATION:
hvif.opmode = HTC_M_STA;
break;
case NL80211_IFTYPE_ADHOC:
hvif.opmode = HTC_M_IBSS;
break;
case NL80211_IFTYPE_AP:
hvif.opmode = HTC_M_HOSTAP;
break;
case NL80211_IFTYPE_MESH_POINT:
hvif.opmode = HTC_M_WDS; /* close enough */
break;
default:
ath_err(common,
"Interface type %d not yet supported\n", vif->type);
ret = -EOPNOTSUPP;
goto out;
}
/* Index starts from zero on the target */
avp->index = hvif.index = ffz(priv->vif_slot);
hvif.rtsthreshold = cpu_to_be16(2304);
WMI_CMD_BUF(WMI_VAP_CREATE_CMDID, &hvif);
if (ret)
goto out;
/*
* We need a node in target to tx mgmt frames
* before association.
*/
ret = ath9k_htc_add_station(priv, vif, NULL);
if (ret) {
WMI_CMD_BUF(WMI_VAP_REMOVE_CMDID, &hvif);
goto out;
}
ath9k_htc_set_bssid_mask(priv, vif);
priv->vif_slot |= (1 << avp->index);
priv->nvifs++;
INC_VIF(priv, vif->type);
if ((vif->type == NL80211_IFTYPE_AP) ||
(vif->type == NL80211_IFTYPE_MESH_POINT) ||
(vif->type == NL80211_IFTYPE_ADHOC))
ath9k_htc_assign_bslot(priv, vif);
ath9k_htc_set_opmode(priv);
if ((priv->ah->opmode == NL80211_IFTYPE_AP) &&
!(priv->op_flags & OP_ANI_RUNNING)) {
ath9k_hw_set_tsfadjust(priv->ah, 1);
ath9k_htc_start_ani(priv);
}
ath_dbg(common, ATH_DBG_CONFIG,
"Attach a VIF of type: %d at idx: %d\n", vif->type, avp->index);
out:
ath9k_htc_ps_restore(priv);
mutex_unlock(&priv->mutex);
return ret;
}
