1786 lines
45 KiB
C
1786 lines
45 KiB
C
/*
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* Copyright (c) 2010-2011 Atheros Communications Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "htc.h"
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/*************/
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/* Utilities */
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/*************/
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/* HACK Alert: Use 11NG for 2.4, use 11NA for 5 */
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static enum htc_phymode ath9k_htc_get_curmode(struct ath9k_htc_priv *priv,
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struct ath9k_channel *ichan)
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{
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enum htc_phymode mode;
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mode = -EINVAL;
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switch (ichan->chanmode) {
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case CHANNEL_G:
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case CHANNEL_G_HT20:
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case CHANNEL_G_HT40PLUS:
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case CHANNEL_G_HT40MINUS:
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mode = HTC_MODE_11NG;
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break;
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case CHANNEL_A:
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case CHANNEL_A_HT20:
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case CHANNEL_A_HT40PLUS:
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case CHANNEL_A_HT40MINUS:
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mode = HTC_MODE_11NA;
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break;
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default:
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break;
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}
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WARN_ON(mode < 0);
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return mode;
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}
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bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
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enum ath9k_power_mode mode)
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{
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bool ret;
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mutex_lock(&priv->htc_pm_lock);
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ret = ath9k_hw_setpower(priv->ah, mode);
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mutex_unlock(&priv->htc_pm_lock);
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return ret;
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}
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void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv)
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{
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mutex_lock(&priv->htc_pm_lock);
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if (++priv->ps_usecount != 1)
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goto unlock;
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ath9k_hw_setpower(priv->ah, ATH9K_PM_AWAKE);
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unlock:
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mutex_unlock(&priv->htc_pm_lock);
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}
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void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv)
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{
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mutex_lock(&priv->htc_pm_lock);
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if (--priv->ps_usecount != 0)
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goto unlock;
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if (priv->ps_idle)
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ath9k_hw_setpower(priv->ah, ATH9K_PM_FULL_SLEEP);
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else if (priv->ps_enabled)
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ath9k_hw_setpower(priv->ah, ATH9K_PM_NETWORK_SLEEP);
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unlock:
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mutex_unlock(&priv->htc_pm_lock);
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}
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void ath9k_ps_work(struct work_struct *work)
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{
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struct ath9k_htc_priv *priv =
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container_of(work, struct ath9k_htc_priv,
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ps_work);
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ath9k_htc_setpower(priv, ATH9K_PM_AWAKE);
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/* The chip wakes up after receiving the first beacon
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while network sleep is enabled. For the driver to
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be in sync with the hw, set the chip to awake and
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only then set it to sleep.
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*/
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ath9k_htc_setpower(priv, ATH9K_PM_NETWORK_SLEEP);
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}
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static void ath9k_htc_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
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{
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struct ath9k_htc_priv *priv = data;
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struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
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if ((vif->type == NL80211_IFTYPE_AP) && bss_conf->enable_beacon)
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priv->reconfig_beacon = true;
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if (bss_conf->assoc) {
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priv->rearm_ani = true;
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priv->reconfig_beacon = true;
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}
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}
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static void ath9k_htc_vif_reconfig(struct ath9k_htc_priv *priv)
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{
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priv->rearm_ani = false;
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priv->reconfig_beacon = false;
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ieee80211_iterate_active_interfaces_atomic(priv->hw,
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ath9k_htc_vif_iter, priv);
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if (priv->rearm_ani)
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ath9k_htc_start_ani(priv);
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if (priv->reconfig_beacon) {
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ath9k_htc_ps_wakeup(priv);
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ath9k_htc_beacon_reconfig(priv);
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ath9k_htc_ps_restore(priv);
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}
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}
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static void ath9k_htc_bssid_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
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{
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struct ath9k_vif_iter_data *iter_data = data;
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int i;
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for (i = 0; i < ETH_ALEN; i++)
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iter_data->mask[i] &= ~(iter_data->hw_macaddr[i] ^ mac[i]);
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}
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static void ath9k_htc_set_bssid_mask(struct ath9k_htc_priv *priv,
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struct ieee80211_vif *vif)
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{
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struct ath_common *common = ath9k_hw_common(priv->ah);
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struct ath9k_vif_iter_data iter_data;
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/*
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* Use the hardware MAC address as reference, the hardware uses it
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* together with the BSSID mask when matching addresses.
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*/
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iter_data.hw_macaddr = common->macaddr;
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memset(&iter_data.mask, 0xff, ETH_ALEN);
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if (vif)
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ath9k_htc_bssid_iter(&iter_data, vif->addr, vif);
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/* Get list of all active MAC addresses */
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ieee80211_iterate_active_interfaces_atomic(priv->hw, ath9k_htc_bssid_iter,
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&iter_data);
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memcpy(common->bssidmask, iter_data.mask, ETH_ALEN);
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ath_hw_setbssidmask(common);
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}
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static void ath9k_htc_set_opmode(struct ath9k_htc_priv *priv)
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{
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if (priv->num_ibss_vif)
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priv->ah->opmode = NL80211_IFTYPE_ADHOC;
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else if (priv->num_ap_vif)
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priv->ah->opmode = NL80211_IFTYPE_AP;
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else
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priv->ah->opmode = NL80211_IFTYPE_STATION;
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ath9k_hw_setopmode(priv->ah);
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}
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void ath9k_htc_reset(struct ath9k_htc_priv *priv)
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{
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struct ath_hw *ah = priv->ah;
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struct ath_common *common = ath9k_hw_common(ah);
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struct ieee80211_channel *channel = priv->hw->conf.channel;
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struct ath9k_hw_cal_data *caldata = NULL;
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enum htc_phymode mode;
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__be16 htc_mode;
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u8 cmd_rsp;
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int ret;
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mutex_lock(&priv->mutex);
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ath9k_htc_ps_wakeup(priv);
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ath9k_htc_stop_ani(priv);
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ieee80211_stop_queues(priv->hw);
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del_timer_sync(&priv->tx.cleanup_timer);
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ath9k_htc_tx_drain(priv);
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WMI_CMD(WMI_DISABLE_INTR_CMDID);
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WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
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WMI_CMD(WMI_STOP_RECV_CMDID);
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ath9k_wmi_event_drain(priv);
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caldata = &priv->caldata;
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ret = ath9k_hw_reset(ah, ah->curchan, caldata, false);
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if (ret) {
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ath_err(common,
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"Unable to reset device (%u Mhz) reset status %d\n",
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channel->center_freq, ret);
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}
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ath9k_cmn_update_txpow(ah, priv->curtxpow, priv->txpowlimit,
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&priv->curtxpow);
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WMI_CMD(WMI_START_RECV_CMDID);
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ath9k_host_rx_init(priv);
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mode = ath9k_htc_get_curmode(priv, ah->curchan);
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htc_mode = cpu_to_be16(mode);
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WMI_CMD_BUF(WMI_SET_MODE_CMDID, &htc_mode);
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WMI_CMD(WMI_ENABLE_INTR_CMDID);
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htc_start(priv->htc);
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ath9k_htc_vif_reconfig(priv);
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ieee80211_wake_queues(priv->hw);
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mod_timer(&priv->tx.cleanup_timer,
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jiffies + msecs_to_jiffies(ATH9K_HTC_TX_CLEANUP_INTERVAL));
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ath9k_htc_ps_restore(priv);
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mutex_unlock(&priv->mutex);
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}
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static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv,
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struct ieee80211_hw *hw,
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struct ath9k_channel *hchan)
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{
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struct ath_hw *ah = priv->ah;
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struct ath_common *common = ath9k_hw_common(ah);
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struct ieee80211_conf *conf = &common->hw->conf;
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bool fastcc;
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struct ieee80211_channel *channel = hw->conf.channel;
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struct ath9k_hw_cal_data *caldata = NULL;
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enum htc_phymode mode;
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__be16 htc_mode;
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u8 cmd_rsp;
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int ret;
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if (priv->op_flags & OP_INVALID)
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return -EIO;
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fastcc = !!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL);
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ath9k_htc_ps_wakeup(priv);
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del_timer_sync(&priv->tx.cleanup_timer);
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ath9k_htc_tx_drain(priv);
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WMI_CMD(WMI_DISABLE_INTR_CMDID);
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WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
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WMI_CMD(WMI_STOP_RECV_CMDID);
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ath9k_wmi_event_drain(priv);
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ath_dbg(common, CONFIG,
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"(%u MHz) -> (%u MHz), HT: %d, HT40: %d fastcc: %d\n",
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priv->ah->curchan->channel,
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channel->center_freq, conf_is_ht(conf), conf_is_ht40(conf),
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fastcc);
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if (!fastcc)
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caldata = &priv->caldata;
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ret = ath9k_hw_reset(ah, hchan, caldata, fastcc);
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if (ret) {
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ath_err(common,
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"Unable to reset channel (%u Mhz) reset status %d\n",
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channel->center_freq, ret);
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goto err;
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}
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ath9k_cmn_update_txpow(ah, priv->curtxpow, priv->txpowlimit,
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&priv->curtxpow);
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WMI_CMD(WMI_START_RECV_CMDID);
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if (ret)
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goto err;
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ath9k_host_rx_init(priv);
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mode = ath9k_htc_get_curmode(priv, hchan);
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htc_mode = cpu_to_be16(mode);
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WMI_CMD_BUF(WMI_SET_MODE_CMDID, &htc_mode);
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if (ret)
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goto err;
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WMI_CMD(WMI_ENABLE_INTR_CMDID);
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if (ret)
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goto err;
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htc_start(priv->htc);
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if (!(priv->op_flags & OP_SCANNING) &&
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!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL))
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ath9k_htc_vif_reconfig(priv);
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mod_timer(&priv->tx.cleanup_timer,
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jiffies + msecs_to_jiffies(ATH9K_HTC_TX_CLEANUP_INTERVAL));
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err:
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ath9k_htc_ps_restore(priv);
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return ret;
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}
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/*
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* Monitor mode handling is a tad complicated because the firmware requires
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* an interface to be created exclusively, while mac80211 doesn't associate
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* an interface with the mode.
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*
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* So, for now, only one monitor interface can be configured.
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*/
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static void __ath9k_htc_remove_monitor_interface(struct ath9k_htc_priv *priv)
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{
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struct ath_common *common = ath9k_hw_common(priv->ah);
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struct ath9k_htc_target_vif hvif;
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int ret = 0;
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u8 cmd_rsp;
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memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
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memcpy(&hvif.myaddr, common->macaddr, ETH_ALEN);
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hvif.index = priv->mon_vif_idx;
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WMI_CMD_BUF(WMI_VAP_REMOVE_CMDID, &hvif);
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if (ret) {
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ath_err(common, "Unable to remove monitor interface at idx: %d\n",
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priv->mon_vif_idx);
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}
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priv->nvifs--;
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priv->vif_slot &= ~(1 << priv->mon_vif_idx);
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}
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static int ath9k_htc_add_monitor_interface(struct ath9k_htc_priv *priv)
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{
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struct ath_common *common = ath9k_hw_common(priv->ah);
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struct ath9k_htc_target_vif hvif;
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struct ath9k_htc_target_sta tsta;
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int ret = 0, sta_idx;
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u8 cmd_rsp;
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if ((priv->nvifs >= ATH9K_HTC_MAX_VIF) ||
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(priv->nstations >= ATH9K_HTC_MAX_STA)) {
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ret = -ENOBUFS;
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goto err_vif;
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}
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sta_idx = ffz(priv->sta_slot);
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if ((sta_idx < 0) || (sta_idx > ATH9K_HTC_MAX_STA)) {
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ret = -ENOBUFS;
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goto err_vif;
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}
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/*
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* Add an interface.
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*/
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memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
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memcpy(&hvif.myaddr, common->macaddr, ETH_ALEN);
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hvif.opmode = HTC_M_MONITOR;
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hvif.index = ffz(priv->vif_slot);
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WMI_CMD_BUF(WMI_VAP_CREATE_CMDID, &hvif);
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if (ret)
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goto err_vif;
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/*
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* Assign the monitor interface index as a special case here.
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* This is needed when the interface is brought down.
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*/
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priv->mon_vif_idx = hvif.index;
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priv->vif_slot |= (1 << hvif.index);
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/*
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* Set the hardware mode to monitor only if there are no
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* other interfaces.
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*/
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if (!priv->nvifs)
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priv->ah->opmode = NL80211_IFTYPE_MONITOR;
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priv->nvifs++;
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|
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/*
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* Associate a station with the interface for packet injection.
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*/
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memset(&tsta, 0, sizeof(struct ath9k_htc_target_sta));
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|
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memcpy(&tsta.macaddr, common->macaddr, ETH_ALEN);
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tsta.is_vif_sta = 1;
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tsta.sta_index = sta_idx;
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tsta.vif_index = hvif.index;
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tsta.maxampdu = cpu_to_be16(0xffff);
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|
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WMI_CMD_BUF(WMI_NODE_CREATE_CMDID, &tsta);
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if (ret) {
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ath_err(common, "Unable to add station entry for monitor mode\n");
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goto err_sta;
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}
|
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priv->sta_slot |= (1 << sta_idx);
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priv->nstations++;
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priv->vif_sta_pos[priv->mon_vif_idx] = sta_idx;
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priv->ah->is_monitoring = true;
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|
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ath_dbg(common, CONFIG,
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"Attached a monitor interface at idx: %d, sta idx: %d\n",
|
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priv->mon_vif_idx, sta_idx);
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|
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return 0;
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|
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err_sta:
|
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/*
|
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* Remove the interface from the target.
|
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*/
|
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__ath9k_htc_remove_monitor_interface(priv);
|
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err_vif:
|
|
ath_dbg(common, FATAL, "Unable to attach a monitor interface\n");
|
|
|
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return ret;
|
|
}
|
|
|
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static int ath9k_htc_remove_monitor_interface(struct ath9k_htc_priv *priv)
|
|
{
|
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struct ath_common *common = ath9k_hw_common(priv->ah);
|
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int ret = 0;
|
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u8 cmd_rsp, sta_idx;
|
|
|
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__ath9k_htc_remove_monitor_interface(priv);
|
|
|
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sta_idx = priv->vif_sta_pos[priv->mon_vif_idx];
|
|
|
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WMI_CMD_BUF(WMI_NODE_REMOVE_CMDID, &sta_idx);
|
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if (ret) {
|
|
ath_err(common, "Unable to remove station entry for monitor mode\n");
|
|
return ret;
|
|
}
|
|
|
|
priv->sta_slot &= ~(1 << sta_idx);
|
|
priv->nstations--;
|
|
priv->ah->is_monitoring = false;
|
|
|
|
ath_dbg(common, CONFIG,
|
|
"Removed a monitor interface at idx: %d, sta idx: %d\n",
|
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priv->mon_vif_idx, sta_idx);
|
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|
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return 0;
|
|
}
|
|
|
|
static int ath9k_htc_add_station(struct ath9k_htc_priv *priv,
|
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struct ieee80211_vif *vif,
|
|
struct ieee80211_sta *sta)
|
|
{
|
|
struct ath_common *common = ath9k_hw_common(priv->ah);
|
|
struct ath9k_htc_target_sta tsta;
|
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struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *) vif->drv_priv;
|
|
struct ath9k_htc_sta *ista;
|
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int ret, sta_idx;
|
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u8 cmd_rsp;
|
|
u16 maxampdu;
|
|
|
|
if (priv->nstations >= ATH9K_HTC_MAX_STA)
|
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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);
|
|
tsta.is_vif_sta = 0;
|
|
ista->index = sta_idx;
|
|
} else {
|
|
memcpy(&tsta.macaddr, vif->addr, ETH_ALEN);
|
|
tsta.is_vif_sta = 1;
|
|
}
|
|
|
|
tsta.sta_index = sta_idx;
|
|
tsta.vif_index = avp->index;
|
|
|
|
if (!sta) {
|
|
tsta.maxampdu = cpu_to_be16(0xffff);
|
|
} else {
|
|
maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
|
|
sta->ht_cap.ampdu_factor);
|
|
tsta.maxampdu = cpu_to_be16(maxampdu);
|
|
}
|
|
|
|
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_remove_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_vif *avp = (struct ath9k_htc_vif *) vif->drv_priv;
|
|
struct ath9k_htc_sta *ista;
|
|
int ret;
|
|
u8 cmd_rsp, sta_idx;
|
|
|
|
if (sta) {
|
|
ista = (struct ath9k_htc_sta *) sta->drv_priv;
|
|
sta_idx = ista->index;
|
|
} else {
|
|
sta_idx = priv->vif_sta_pos[avp->index];
|
|
}
|
|
|
|
WMI_CMD_BUF(WMI_NODE_REMOVE_CMDID, &sta_idx);
|
|
if (ret) {
|
|
if (sta)
|
|
ath_err(common,
|
|
"Unable to remove station entry for: %pM\n",
|
|
sta->addr);
|
|
return ret;
|
|
}
|
|
|
|
if (sta) {
|
|
ath_dbg(common, CONFIG,
|
|
"Removed a station entry for: %pM (idx: %d)\n",
|
|
sta->addr, sta_idx);
|
|
} else {
|
|
ath_dbg(common, CONFIG,
|
|
"Removed a station entry for VIF %d (idx: %d)\n",
|
|
avp->index, sta_idx);
|
|
}
|
|
|
|
priv->sta_slot &= ~(1 << sta_idx);
|
|
priv->nstations--;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ath9k_htc_update_cap_target(struct ath9k_htc_priv *priv,
|
|
u8 enable_coex)
|
|
{
|
|
struct ath9k_htc_cap_target tcap;
|
|
int ret;
|
|
u8 cmd_rsp;
|
|
|
|
memset(&tcap, 0, sizeof(struct ath9k_htc_cap_target));
|
|
|
|
tcap.ampdu_limit = cpu_to_be32(0xffff);
|
|
tcap.ampdu_subframes = 0xff;
|
|
tcap.enable_coex = enable_coex;
|
|
tcap.tx_chainmask = priv->ah->caps.tx_chainmask;
|
|
|
|
WMI_CMD_BUF(WMI_TARGET_IC_UPDATE_CMDID, &tcap);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void ath9k_htc_setup_rate(struct ath9k_htc_priv *priv,
|
|
struct ieee80211_sta *sta,
|
|
struct ath9k_htc_target_rate *trate)
|
|
{
|
|
struct ath9k_htc_sta *ista = (struct ath9k_htc_sta *) sta->drv_priv;
|
|
struct ieee80211_supported_band *sband;
|
|
u32 caps = 0;
|
|
int i, j;
|
|
|
|
sband = priv->hw->wiphy->bands[priv->hw->conf.channel->band];
|
|
|
|
for (i = 0, j = 0; i < sband->n_bitrates; i++) {
|
|
if (sta->supp_rates[sband->band] & BIT(i)) {
|
|
trate->rates.legacy_rates.rs_rates[j]
|
|
= (sband->bitrates[i].bitrate * 2) / 10;
|
|
j++;
|
|
}
|
|
}
|
|
trate->rates.legacy_rates.rs_nrates = j;
|
|
|
|
if (sta->ht_cap.ht_supported) {
|
|
for (i = 0, j = 0; i < 77; i++) {
|
|
if (sta->ht_cap.mcs.rx_mask[i/8] & (1<<(i%8)))
|
|
trate->rates.ht_rates.rs_rates[j++] = i;
|
|
if (j == ATH_HTC_RATE_MAX)
|
|
break;
|
|
}
|
|
trate->rates.ht_rates.rs_nrates = j;
|
|
|
|
caps = WLAN_RC_HT_FLAG;
|
|
if (sta->ht_cap.mcs.rx_mask[1])
|
|
caps |= WLAN_RC_DS_FLAG;
|
|
if ((sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) &&
|
|
(conf_is_ht40(&priv->hw->conf)))
|
|
caps |= WLAN_RC_40_FLAG;
|
|
if (conf_is_ht40(&priv->hw->conf) &&
|
|
(sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40))
|
|
caps |= WLAN_RC_SGI_FLAG;
|
|
else if (conf_is_ht20(&priv->hw->conf) &&
|
|
(sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20))
|
|
caps |= WLAN_RC_SGI_FLAG;
|
|
}
|
|
|
|
trate->sta_index = ista->index;
|
|
trate->isnew = 1;
|
|
trate->capflags = cpu_to_be32(caps);
|
|
}
|
|
|
|
static int ath9k_htc_send_rate_cmd(struct ath9k_htc_priv *priv,
|
|
struct ath9k_htc_target_rate *trate)
|
|
{
|
|
struct ath_common *common = ath9k_hw_common(priv->ah);
|
|
int ret;
|
|
u8 cmd_rsp;
|
|
|
|
WMI_CMD_BUF(WMI_RC_RATE_UPDATE_CMDID, trate);
|
|
if (ret) {
|
|
ath_err(common,
|
|
"Unable to initialize Rate information on target\n");
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void ath9k_htc_init_rate(struct ath9k_htc_priv *priv,
|
|
struct ieee80211_sta *sta)
|
|
{
|
|
struct ath_common *common = ath9k_hw_common(priv->ah);
|
|
struct ath9k_htc_target_rate trate;
|
|
int ret;
|
|
|
|
memset(&trate, 0, sizeof(struct ath9k_htc_target_rate));
|
|
ath9k_htc_setup_rate(priv, sta, &trate);
|
|
ret = ath9k_htc_send_rate_cmd(priv, &trate);
|
|
if (!ret)
|
|
ath_dbg(common, CONFIG,
|
|
"Updated target sta: %pM, rate caps: 0x%X\n",
|
|
sta->addr, be32_to_cpu(trate.capflags));
|
|
}
|
|
|
|
static void ath9k_htc_update_rate(struct ath9k_htc_priv *priv,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_bss_conf *bss_conf)
|
|
{
|
|
struct ath_common *common = ath9k_hw_common(priv->ah);
|
|
struct ath9k_htc_target_rate trate;
|
|
struct ieee80211_sta *sta;
|
|
int ret;
|
|
|
|
memset(&trate, 0, sizeof(struct ath9k_htc_target_rate));
|
|
|
|
rcu_read_lock();
|
|
sta = ieee80211_find_sta(vif, bss_conf->bssid);
|
|
if (!sta) {
|
|
rcu_read_unlock();
|
|
return;
|
|
}
|
|
ath9k_htc_setup_rate(priv, sta, &trate);
|
|
rcu_read_unlock();
|
|
|
|
ret = ath9k_htc_send_rate_cmd(priv, &trate);
|
|
if (!ret)
|
|
ath_dbg(common, CONFIG,
|
|
"Updated target sta: %pM, rate caps: 0x%X\n",
|
|
bss_conf->bssid, be32_to_cpu(trate.capflags));
|
|
}
|
|
|
|
static int ath9k_htc_tx_aggr_oper(struct ath9k_htc_priv *priv,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_sta *sta,
|
|
enum ieee80211_ampdu_mlme_action action,
|
|
u16 tid)
|
|
{
|
|
struct ath_common *common = ath9k_hw_common(priv->ah);
|
|
struct ath9k_htc_target_aggr aggr;
|
|
struct ath9k_htc_sta *ista;
|
|
int ret = 0;
|
|
u8 cmd_rsp;
|
|
|
|
if (tid >= ATH9K_HTC_MAX_TID)
|
|
return -EINVAL;
|
|
|
|
memset(&aggr, 0, sizeof(struct ath9k_htc_target_aggr));
|
|
ista = (struct ath9k_htc_sta *) sta->drv_priv;
|
|
|
|
aggr.sta_index = ista->index;
|
|
aggr.tidno = tid & 0xf;
|
|
aggr.aggr_enable = (action == IEEE80211_AMPDU_TX_START) ? true : false;
|
|
|
|
WMI_CMD_BUF(WMI_TX_AGGR_ENABLE_CMDID, &aggr);
|
|
if (ret)
|
|
ath_dbg(common, CONFIG,
|
|
"Unable to %s TX aggregation for (%pM, %d)\n",
|
|
(aggr.aggr_enable) ? "start" : "stop", sta->addr, tid);
|
|
else
|
|
ath_dbg(common, CONFIG,
|
|
"%s TX aggregation for (%pM, %d)\n",
|
|
(aggr.aggr_enable) ? "Starting" : "Stopping",
|
|
sta->addr, tid);
|
|
|
|
spin_lock_bh(&priv->tx.tx_lock);
|
|
ista->tid_state[tid] = (aggr.aggr_enable && !ret) ? AGGR_START : AGGR_STOP;
|
|
spin_unlock_bh(&priv->tx.tx_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*******/
|
|
/* ANI */
|
|
/*******/
|
|
|
|
void ath9k_htc_start_ani(struct ath9k_htc_priv *priv)
|
|
{
|
|
struct ath_common *common = ath9k_hw_common(priv->ah);
|
|
unsigned long timestamp = jiffies_to_msecs(jiffies);
|
|
|
|
common->ani.longcal_timer = timestamp;
|
|
common->ani.shortcal_timer = timestamp;
|
|
common->ani.checkani_timer = timestamp;
|
|
|
|
priv->op_flags |= OP_ANI_RUNNING;
|
|
|
|
ieee80211_queue_delayed_work(common->hw, &priv->ani_work,
|
|
msecs_to_jiffies(ATH_ANI_POLLINTERVAL));
|
|
}
|
|
|
|
void ath9k_htc_stop_ani(struct ath9k_htc_priv *priv)
|
|
{
|
|
cancel_delayed_work_sync(&priv->ani_work);
|
|
priv->op_flags &= ~OP_ANI_RUNNING;
|
|
}
|
|
|
|
void ath9k_htc_ani_work(struct work_struct *work)
|
|
{
|
|
struct ath9k_htc_priv *priv =
|
|
container_of(work, struct ath9k_htc_priv, ani_work.work);
|
|
struct ath_hw *ah = priv->ah;
|
|
struct ath_common *common = ath9k_hw_common(ah);
|
|
bool longcal = false;
|
|
bool shortcal = false;
|
|
bool aniflag = false;
|
|
unsigned int timestamp = jiffies_to_msecs(jiffies);
|
|
u32 cal_interval, short_cal_interval;
|
|
|
|
short_cal_interval = (ah->opmode == NL80211_IFTYPE_AP) ?
|
|
ATH_AP_SHORT_CALINTERVAL : ATH_STA_SHORT_CALINTERVAL;
|
|
|
|
/* Only calibrate if awake */
|
|
if (ah->power_mode != ATH9K_PM_AWAKE)
|
|
goto set_timer;
|
|
|
|
/* Long calibration runs independently of short calibration. */
|
|
if ((timestamp - common->ani.longcal_timer) >= ATH_LONG_CALINTERVAL) {
|
|
longcal = true;
|
|
ath_dbg(common, ANI, "longcal @%lu\n", jiffies);
|
|
common->ani.longcal_timer = timestamp;
|
|
}
|
|
|
|
/* Short calibration applies only while caldone is false */
|
|
if (!common->ani.caldone) {
|
|
if ((timestamp - common->ani.shortcal_timer) >=
|
|
short_cal_interval) {
|
|
shortcal = true;
|
|
ath_dbg(common, ANI, "shortcal @%lu\n", jiffies);
|
|
common->ani.shortcal_timer = timestamp;
|
|
common->ani.resetcal_timer = timestamp;
|
|
}
|
|
} else {
|
|
if ((timestamp - common->ani.resetcal_timer) >=
|
|
ATH_RESTART_CALINTERVAL) {
|
|
common->ani.caldone = ath9k_hw_reset_calvalid(ah);
|
|
if (common->ani.caldone)
|
|
common->ani.resetcal_timer = timestamp;
|
|
}
|
|
}
|
|
|
|
/* Verify whether we must check ANI */
|
|
if (ah->config.enable_ani &&
|
|
(timestamp - common->ani.checkani_timer) >= ATH_ANI_POLLINTERVAL) {
|
|
aniflag = true;
|
|
common->ani.checkani_timer = timestamp;
|
|
}
|
|
|
|
/* Skip all processing if there's nothing to do. */
|
|
if (longcal || shortcal || aniflag) {
|
|
|
|
ath9k_htc_ps_wakeup(priv);
|
|
|
|
/* Call ANI routine if necessary */
|
|
if (aniflag)
|
|
ath9k_hw_ani_monitor(ah, ah->curchan);
|
|
|
|
/* Perform calibration if necessary */
|
|
if (longcal || shortcal)
|
|
common->ani.caldone =
|
|
ath9k_hw_calibrate(ah, ah->curchan,
|
|
ah->rxchainmask, longcal);
|
|
|
|
ath9k_htc_ps_restore(priv);
|
|
}
|
|
|
|
set_timer:
|
|
/*
|
|
* Set timer interval based on previous results.
|
|
* The interval must be the shortest necessary to satisfy ANI,
|
|
* short calibration and long calibration.
|
|
*/
|
|
cal_interval = ATH_LONG_CALINTERVAL;
|
|
if (ah->config.enable_ani)
|
|
cal_interval = min(cal_interval, (u32)ATH_ANI_POLLINTERVAL);
|
|
if (!common->ani.caldone)
|
|
cal_interval = min(cal_interval, (u32)short_cal_interval);
|
|
|
|
ieee80211_queue_delayed_work(common->hw, &priv->ani_work,
|
|
msecs_to_jiffies(cal_interval));
|
|
}
|
|
|
|
/**********************/
|
|
/* mac80211 Callbacks */
|
|
/**********************/
|
|
|
|
static void ath9k_htc_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
|
|
{
|
|
struct ieee80211_hdr *hdr;
|
|
struct ath9k_htc_priv *priv = hw->priv;
|
|
struct ath_common *common = ath9k_hw_common(priv->ah);
|
|
int padpos, padsize, ret, slot;
|
|
|
|
hdr = (struct ieee80211_hdr *) skb->data;
|
|
|
|
/* Add the padding after the header if this is not already done */
|
|
padpos = ath9k_cmn_padpos(hdr->frame_control);
|
|
padsize = padpos & 3;
|
|
if (padsize && skb->len > padpos) {
|
|
if (skb_headroom(skb) < padsize) {
|
|
ath_dbg(common, XMIT, "No room for padding\n");
|
|
goto fail_tx;
|
|
}
|
|
skb_push(skb, padsize);
|
|
memmove(skb->data, skb->data + padsize, padpos);
|
|
}
|
|
|
|
slot = ath9k_htc_tx_get_slot(priv);
|
|
if (slot < 0) {
|
|
ath_dbg(common, XMIT, "No free TX slot\n");
|
|
goto fail_tx;
|
|
}
|
|
|
|
ret = ath9k_htc_tx_start(priv, skb, slot, false);
|
|
if (ret != 0) {
|
|
ath_dbg(common, XMIT, "Tx failed\n");
|
|
goto clear_slot;
|
|
}
|
|
|
|
ath9k_htc_check_stop_queues(priv);
|
|
|
|
return;
|
|
|
|
clear_slot:
|
|
ath9k_htc_tx_clear_slot(priv, slot);
|
|
fail_tx:
|
|
dev_kfree_skb_any(skb);
|
|
}
|
|
|
|
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");
|
|
|
|
priv->op_flags &= ~OP_INVALID;
|
|
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_stop(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);
|
|
int ret __attribute__ ((unused));
|
|
u8 cmd_rsp;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
|
|
if (priv->op_flags & OP_INVALID) {
|
|
ath_dbg(common, ANY, "Device not present\n");
|
|
mutex_unlock(&priv->mutex);
|
|
return;
|
|
}
|
|
|
|
ath9k_htc_ps_wakeup(priv);
|
|
|
|
WMI_CMD(WMI_DISABLE_INTR_CMDID);
|
|
WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
|
|
WMI_CMD(WMI_STOP_RECV_CMDID);
|
|
|
|
tasklet_kill(&priv->rx_tasklet);
|
|
|
|
del_timer_sync(&priv->tx.cleanup_timer);
|
|
ath9k_htc_tx_drain(priv);
|
|
ath9k_wmi_event_drain(priv);
|
|
|
|
mutex_unlock(&priv->mutex);
|
|
|
|
/* Cancel all the running timers/work .. */
|
|
cancel_work_sync(&priv->fatal_work);
|
|
cancel_work_sync(&priv->ps_work);
|
|
|
|
#ifdef CONFIG_MAC80211_LEDS
|
|
cancel_work_sync(&priv->led_work);
|
|
#endif
|
|
ath9k_htc_stop_ani(priv);
|
|
|
|
mutex_lock(&priv->mutex);
|
|
|
|
ath9k_htc_stop_btcoex(priv);
|
|
|
|
/* Remove a monitor interface if it's present. */
|
|
if (priv->ah->is_monitoring)
|
|
ath9k_htc_remove_monitor_interface(priv);
|
|
|
|
ath9k_hw_phy_disable(ah);
|
|
ath9k_hw_disable(ah);
|
|
ath9k_htc_ps_restore(priv);
|
|
ath9k_htc_setpower(priv, ATH9K_PM_FULL_SLEEP);
|
|
|
|
priv->op_flags |= OP_INVALID;
|
|
|
|
ath_dbg(common, CONFIG, "Driver halt\n");
|
|
mutex_unlock(&priv->mutex);
|
|
}
|
|
|
|
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 (((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;
|
|
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) &&
|
|
!(priv->op_flags & OP_ANI_RUNNING)) {
|
|
ath9k_hw_set_tsfadjust(priv->ah, 1);
|
|
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 void ath9k_htc_remove_interface(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
struct ath9k_htc_priv *priv = hw->priv;
|
|
struct ath_common *common = ath9k_hw_common(priv->ah);
|
|
struct ath9k_htc_vif *avp = (void *)vif->drv_priv;
|
|
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);
|
|
hvif.index = avp->index;
|
|
WMI_CMD_BUF(WMI_VAP_REMOVE_CMDID, &hvif);
|
|
if (ret) {
|
|
ath_err(common, "Unable to remove interface at idx: %d\n",
|
|
avp->index);
|
|
}
|
|
priv->nvifs--;
|
|
priv->vif_slot &= ~(1 << avp->index);
|
|
|
|
ath9k_htc_remove_station(priv, vif, NULL);
|
|
|
|
DEC_VIF(priv, vif->type);
|
|
|
|
if ((vif->type == NL80211_IFTYPE_AP) ||
|
|
(vif->type == NL80211_IFTYPE_ADHOC))
|
|
ath9k_htc_remove_bslot(priv, vif);
|
|
|
|
ath9k_htc_set_opmode(priv);
|
|
|
|
ath9k_htc_set_bssid_mask(priv, vif);
|
|
|
|
/*
|
|
* Stop ANI only if there are no associated station interfaces.
|
|
*/
|
|
if ((vif->type == NL80211_IFTYPE_AP) && (priv->num_ap_vif == 0)) {
|
|
priv->rearm_ani = false;
|
|
ieee80211_iterate_active_interfaces_atomic(priv->hw,
|
|
ath9k_htc_vif_iter, priv);
|
|
if (!priv->rearm_ani)
|
|
ath9k_htc_stop_ani(priv);
|
|
}
|
|
|
|
ath_dbg(common, CONFIG, "Detach Interface at idx: %d\n", avp->index);
|
|
|
|
ath9k_htc_ps_restore(priv);
|
|
mutex_unlock(&priv->mutex);
|
|
}
|
|
|
|
static int ath9k_htc_config(struct ieee80211_hw *hw, u32 changed)
|
|
{
|
|
struct ath9k_htc_priv *priv = hw->priv;
|
|
struct ath_common *common = ath9k_hw_common(priv->ah);
|
|
struct ieee80211_conf *conf = &hw->conf;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
|
|
if (changed & IEEE80211_CONF_CHANGE_IDLE) {
|
|
bool enable_radio = false;
|
|
bool idle = !!(conf->flags & IEEE80211_CONF_IDLE);
|
|
|
|
mutex_lock(&priv->htc_pm_lock);
|
|
if (!idle && priv->ps_idle)
|
|
enable_radio = true;
|
|
priv->ps_idle = idle;
|
|
mutex_unlock(&priv->htc_pm_lock);
|
|
|
|
if (enable_radio) {
|
|
ath_dbg(common, CONFIG, "not-idle: enabling radio\n");
|
|
ath9k_htc_setpower(priv, ATH9K_PM_AWAKE);
|
|
ath9k_htc_radio_enable(hw);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Monitor interface should be added before
|
|
* IEEE80211_CONF_CHANGE_CHANNEL is handled.
|
|
*/
|
|
if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
|
|
if ((conf->flags & IEEE80211_CONF_MONITOR) &&
|
|
!priv->ah->is_monitoring)
|
|
ath9k_htc_add_monitor_interface(priv);
|
|
else if (priv->ah->is_monitoring)
|
|
ath9k_htc_remove_monitor_interface(priv);
|
|
}
|
|
|
|
if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
|
|
struct ieee80211_channel *curchan = hw->conf.channel;
|
|
int pos = curchan->hw_value;
|
|
|
|
ath_dbg(common, CONFIG, "Set channel: %d MHz\n",
|
|
curchan->center_freq);
|
|
|
|
ath9k_cmn_update_ichannel(&priv->ah->channels[pos],
|
|
hw->conf.channel,
|
|
hw->conf.channel_type);
|
|
|
|
if (ath9k_htc_set_channel(priv, hw, &priv->ah->channels[pos]) < 0) {
|
|
ath_err(common, "Unable to set channel\n");
|
|
mutex_unlock(&priv->mutex);
|
|
return -EINVAL;
|
|
}
|
|
|
|
}
|
|
|
|
if (changed & IEEE80211_CONF_CHANGE_PS) {
|
|
if (conf->flags & IEEE80211_CONF_PS) {
|
|
ath9k_htc_setpower(priv, ATH9K_PM_NETWORK_SLEEP);
|
|
priv->ps_enabled = true;
|
|
} else {
|
|
priv->ps_enabled = false;
|
|
cancel_work_sync(&priv->ps_work);
|
|
ath9k_htc_setpower(priv, ATH9K_PM_AWAKE);
|
|
}
|
|
}
|
|
|
|
if (changed & IEEE80211_CONF_CHANGE_POWER) {
|
|
priv->txpowlimit = 2 * conf->power_level;
|
|
ath9k_cmn_update_txpow(priv->ah, priv->curtxpow,
|
|
priv->txpowlimit, &priv->curtxpow);
|
|
}
|
|
|
|
if (changed & IEEE80211_CONF_CHANGE_IDLE) {
|
|
mutex_lock(&priv->htc_pm_lock);
|
|
if (!priv->ps_idle) {
|
|
mutex_unlock(&priv->htc_pm_lock);
|
|
goto out;
|
|
}
|
|
mutex_unlock(&priv->htc_pm_lock);
|
|
|
|
ath_dbg(common, CONFIG, "idle: disabling radio\n");
|
|
ath9k_htc_radio_disable(hw);
|
|
}
|
|
|
|
out:
|
|
mutex_unlock(&priv->mutex);
|
|
return 0;
|
|
}
|
|
|
|
#define SUPPORTED_FILTERS \
|
|
(FIF_PROMISC_IN_BSS | \
|
|
FIF_ALLMULTI | \
|
|
FIF_CONTROL | \
|
|
FIF_PSPOLL | \
|
|
FIF_OTHER_BSS | \
|
|
FIF_BCN_PRBRESP_PROMISC | \
|
|
FIF_PROBE_REQ | \
|
|
FIF_FCSFAIL)
|
|
|
|
static void ath9k_htc_configure_filter(struct ieee80211_hw *hw,
|
|
unsigned int changed_flags,
|
|
unsigned int *total_flags,
|
|
u64 multicast)
|
|
{
|
|
struct ath9k_htc_priv *priv = hw->priv;
|
|
u32 rfilt;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
changed_flags &= SUPPORTED_FILTERS;
|
|
*total_flags &= SUPPORTED_FILTERS;
|
|
|
|
if (priv->op_flags & OP_INVALID) {
|
|
ath_dbg(ath9k_hw_common(priv->ah), ANY,
|
|
"Unable to configure filter on invalid state\n");
|
|
mutex_unlock(&priv->mutex);
|
|
return;
|
|
}
|
|
ath9k_htc_ps_wakeup(priv);
|
|
|
|
priv->rxfilter = *total_flags;
|
|
rfilt = ath9k_htc_calcrxfilter(priv);
|
|
ath9k_hw_setrxfilter(priv->ah, rfilt);
|
|
|
|
ath_dbg(ath9k_hw_common(priv->ah), CONFIG, "Set HW RX filter: 0x%x\n",
|
|
rfilt);
|
|
|
|
ath9k_htc_ps_restore(priv);
|
|
mutex_unlock(&priv->mutex);
|
|
}
|
|
|
|
static int ath9k_htc_sta_add(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_sta *sta)
|
|
{
|
|
struct ath9k_htc_priv *priv = hw->priv;
|
|
int ret;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
ath9k_htc_ps_wakeup(priv);
|
|
ret = ath9k_htc_add_station(priv, vif, sta);
|
|
if (!ret)
|
|
ath9k_htc_init_rate(priv, sta);
|
|
ath9k_htc_ps_restore(priv);
|
|
mutex_unlock(&priv->mutex);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int ath9k_htc_sta_remove(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_sta *sta)
|
|
{
|
|
struct ath9k_htc_priv *priv = hw->priv;
|
|
struct ath9k_htc_sta *ista;
|
|
int ret;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
ath9k_htc_ps_wakeup(priv);
|
|
ista = (struct ath9k_htc_sta *) sta->drv_priv;
|
|
htc_sta_drain(priv->htc, ista->index);
|
|
ret = ath9k_htc_remove_station(priv, vif, sta);
|
|
ath9k_htc_ps_restore(priv);
|
|
mutex_unlock(&priv->mutex);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int ath9k_htc_conf_tx(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif, u16 queue,
|
|
const struct ieee80211_tx_queue_params *params)
|
|
{
|
|
struct ath9k_htc_priv *priv = hw->priv;
|
|
struct ath_common *common = ath9k_hw_common(priv->ah);
|
|
struct ath9k_tx_queue_info qi;
|
|
int ret = 0, qnum;
|
|
|
|
if (queue >= WME_NUM_AC)
|
|
return 0;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
ath9k_htc_ps_wakeup(priv);
|
|
|
|
memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));
|
|
|
|
qi.tqi_aifs = params->aifs;
|
|
qi.tqi_cwmin = params->cw_min;
|
|
qi.tqi_cwmax = params->cw_max;
|
|
qi.tqi_burstTime = params->txop;
|
|
|
|
qnum = get_hw_qnum(queue, priv->hwq_map);
|
|
|
|
ath_dbg(common, CONFIG,
|
|
"Configure tx [queue/hwq] [%d/%d], aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
|
|
queue, qnum, params->aifs, params->cw_min,
|
|
params->cw_max, params->txop);
|
|
|
|
ret = ath_htc_txq_update(priv, qnum, &qi);
|
|
if (ret) {
|
|
ath_err(common, "TXQ Update failed\n");
|
|
goto out;
|
|
}
|
|
|
|
if ((priv->ah->opmode == NL80211_IFTYPE_ADHOC) &&
|
|
(qnum == priv->hwq_map[WME_AC_BE]))
|
|
ath9k_htc_beaconq_config(priv);
|
|
out:
|
|
ath9k_htc_ps_restore(priv);
|
|
mutex_unlock(&priv->mutex);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int ath9k_htc_set_key(struct ieee80211_hw *hw,
|
|
enum set_key_cmd cmd,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_sta *sta,
|
|
struct ieee80211_key_conf *key)
|
|
{
|
|
struct ath9k_htc_priv *priv = hw->priv;
|
|
struct ath_common *common = ath9k_hw_common(priv->ah);
|
|
int ret = 0;
|
|
|
|
if (htc_modparam_nohwcrypt)
|
|
return -ENOSPC;
|
|
|
|
if ((vif->type == NL80211_IFTYPE_ADHOC ||
|
|
vif->type == NL80211_IFTYPE_MESH_POINT) &&
|
|
(key->cipher == WLAN_CIPHER_SUITE_TKIP ||
|
|
key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
|
|
!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
|
|
/*
|
|
* For now, disable hw crypto for the RSN IBSS group keys. This
|
|
* could be optimized in the future to use a modified key cache
|
|
* design to support per-STA RX GTK, but until that gets
|
|
* implemented, use of software crypto for group addressed
|
|
* frames is a acceptable to allow RSN IBSS to be used.
|
|
*/
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
mutex_lock(&priv->mutex);
|
|
ath_dbg(common, CONFIG, "Set HW Key\n");
|
|
ath9k_htc_ps_wakeup(priv);
|
|
|
|
switch (cmd) {
|
|
case SET_KEY:
|
|
ret = ath_key_config(common, vif, sta, key);
|
|
if (ret >= 0) {
|
|
key->hw_key_idx = ret;
|
|
/* push IV and Michael MIC generation to stack */
|
|
key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
|
|
if (key->cipher == WLAN_CIPHER_SUITE_TKIP)
|
|
key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
|
|
if (priv->ah->sw_mgmt_crypto &&
|
|
key->cipher == WLAN_CIPHER_SUITE_CCMP)
|
|
key->flags |= IEEE80211_KEY_FLAG_SW_MGMT;
|
|
ret = 0;
|
|
}
|
|
break;
|
|
case DISABLE_KEY:
|
|
ath_key_delete(common, key);
|
|
break;
|
|
default:
|
|
ret = -EINVAL;
|
|
}
|
|
|
|
ath9k_htc_ps_restore(priv);
|
|
mutex_unlock(&priv->mutex);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void ath9k_htc_set_bssid(struct ath9k_htc_priv *priv)
|
|
{
|
|
struct ath_common *common = ath9k_hw_common(priv->ah);
|
|
|
|
ath9k_hw_write_associd(priv->ah);
|
|
ath_dbg(common, CONFIG, "BSSID: %pM aid: 0x%x\n",
|
|
common->curbssid, common->curaid);
|
|
}
|
|
|
|
static void ath9k_htc_bss_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
|
|
{
|
|
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *)data;
|
|
struct ath_common *common = ath9k_hw_common(priv->ah);
|
|
struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
|
|
|
|
if ((vif->type == NL80211_IFTYPE_STATION) && bss_conf->assoc) {
|
|
common->curaid = bss_conf->aid;
|
|
memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
|
|
}
|
|
}
|
|
|
|
static void ath9k_htc_choose_set_bssid(struct ath9k_htc_priv *priv)
|
|
{
|
|
if (priv->num_sta_assoc_vif == 1) {
|
|
ieee80211_iterate_active_interfaces_atomic(priv->hw,
|
|
ath9k_htc_bss_iter, priv);
|
|
ath9k_htc_set_bssid(priv);
|
|
}
|
|
}
|
|
|
|
static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_bss_conf *bss_conf,
|
|
u32 changed)
|
|
{
|
|
struct ath9k_htc_priv *priv = hw->priv;
|
|
struct ath_hw *ah = priv->ah;
|
|
struct ath_common *common = ath9k_hw_common(ah);
|
|
|
|
mutex_lock(&priv->mutex);
|
|
ath9k_htc_ps_wakeup(priv);
|
|
|
|
if (changed & BSS_CHANGED_ASSOC) {
|
|
ath_dbg(common, CONFIG, "BSS Changed ASSOC %d\n",
|
|
bss_conf->assoc);
|
|
|
|
bss_conf->assoc ?
|
|
priv->num_sta_assoc_vif++ : priv->num_sta_assoc_vif--;
|
|
|
|
if (priv->ah->opmode == NL80211_IFTYPE_STATION) {
|
|
if (bss_conf->assoc && (priv->num_sta_assoc_vif == 1))
|
|
ath9k_htc_start_ani(priv);
|
|
else if (priv->num_sta_assoc_vif == 0)
|
|
ath9k_htc_stop_ani(priv);
|
|
}
|
|
}
|
|
|
|
if (changed & BSS_CHANGED_BSSID) {
|
|
if (priv->ah->opmode == NL80211_IFTYPE_ADHOC) {
|
|
common->curaid = bss_conf->aid;
|
|
memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
|
|
ath9k_htc_set_bssid(priv);
|
|
} else if (priv->ah->opmode == NL80211_IFTYPE_STATION) {
|
|
ath9k_htc_choose_set_bssid(priv);
|
|
}
|
|
}
|
|
|
|
if ((changed & BSS_CHANGED_BEACON_ENABLED) && bss_conf->enable_beacon) {
|
|
ath_dbg(common, CONFIG, "Beacon enabled for BSS: %pM\n",
|
|
bss_conf->bssid);
|
|
ath9k_htc_set_tsfadjust(priv, vif);
|
|
priv->op_flags |= OP_ENABLE_BEACON;
|
|
ath9k_htc_beacon_config(priv, vif);
|
|
}
|
|
|
|
if ((changed & BSS_CHANGED_BEACON_ENABLED) && !bss_conf->enable_beacon) {
|
|
/*
|
|
* Disable SWBA interrupt only if there are no
|
|
* AP/IBSS interfaces.
|
|
*/
|
|
if ((priv->num_ap_vif <= 1) || priv->num_ibss_vif) {
|
|
ath_dbg(common, CONFIG,
|
|
"Beacon disabled for BSS: %pM\n",
|
|
bss_conf->bssid);
|
|
priv->op_flags &= ~OP_ENABLE_BEACON;
|
|
ath9k_htc_beacon_config(priv, vif);
|
|
}
|
|
}
|
|
|
|
if (changed & BSS_CHANGED_BEACON_INT) {
|
|
/*
|
|
* Reset the HW TSF for the first AP interface.
|
|
*/
|
|
if ((priv->ah->opmode == NL80211_IFTYPE_AP) &&
|
|
(priv->nvifs == 1) &&
|
|
(priv->num_ap_vif == 1) &&
|
|
(vif->type == NL80211_IFTYPE_AP)) {
|
|
priv->op_flags |= OP_TSF_RESET;
|
|
}
|
|
ath_dbg(common, CONFIG,
|
|
"Beacon interval changed for BSS: %pM\n",
|
|
bss_conf->bssid);
|
|
ath9k_htc_beacon_config(priv, vif);
|
|
}
|
|
|
|
if (changed & BSS_CHANGED_ERP_SLOT) {
|
|
if (bss_conf->use_short_slot)
|
|
ah->slottime = 9;
|
|
else
|
|
ah->slottime = 20;
|
|
|
|
ath9k_hw_init_global_settings(ah);
|
|
}
|
|
|
|
if (changed & BSS_CHANGED_HT)
|
|
ath9k_htc_update_rate(priv, vif, bss_conf);
|
|
|
|
ath9k_htc_ps_restore(priv);
|
|
mutex_unlock(&priv->mutex);
|
|
}
|
|
|
|
static u64 ath9k_htc_get_tsf(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
struct ath9k_htc_priv *priv = hw->priv;
|
|
u64 tsf;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
ath9k_htc_ps_wakeup(priv);
|
|
tsf = ath9k_hw_gettsf64(priv->ah);
|
|
ath9k_htc_ps_restore(priv);
|
|
mutex_unlock(&priv->mutex);
|
|
|
|
return tsf;
|
|
}
|
|
|
|
static void ath9k_htc_set_tsf(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif, u64 tsf)
|
|
{
|
|
struct ath9k_htc_priv *priv = hw->priv;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
ath9k_htc_ps_wakeup(priv);
|
|
ath9k_hw_settsf64(priv->ah, tsf);
|
|
ath9k_htc_ps_restore(priv);
|
|
mutex_unlock(&priv->mutex);
|
|
}
|
|
|
|
static void ath9k_htc_reset_tsf(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
struct ath9k_htc_priv *priv = hw->priv;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
ath9k_htc_ps_wakeup(priv);
|
|
ath9k_hw_reset_tsf(priv->ah);
|
|
ath9k_htc_ps_restore(priv);
|
|
mutex_unlock(&priv->mutex);
|
|
}
|
|
|
|
static int ath9k_htc_ampdu_action(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
enum ieee80211_ampdu_mlme_action action,
|
|
struct ieee80211_sta *sta,
|
|
u16 tid, u16 *ssn, u8 buf_size)
|
|
{
|
|
struct ath9k_htc_priv *priv = hw->priv;
|
|
struct ath9k_htc_sta *ista;
|
|
int ret = 0;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
ath9k_htc_ps_wakeup(priv);
|
|
|
|
switch (action) {
|
|
case IEEE80211_AMPDU_RX_START:
|
|
break;
|
|
case IEEE80211_AMPDU_RX_STOP:
|
|
break;
|
|
case IEEE80211_AMPDU_TX_START:
|
|
ret = ath9k_htc_tx_aggr_oper(priv, vif, sta, action, tid);
|
|
if (!ret)
|
|
ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
|
|
break;
|
|
case IEEE80211_AMPDU_TX_STOP:
|
|
ath9k_htc_tx_aggr_oper(priv, vif, sta, action, tid);
|
|
ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
|
|
break;
|
|
case IEEE80211_AMPDU_TX_OPERATIONAL:
|
|
ista = (struct ath9k_htc_sta *) sta->drv_priv;
|
|
spin_lock_bh(&priv->tx.tx_lock);
|
|
ista->tid_state[tid] = AGGR_OPERATIONAL;
|
|
spin_unlock_bh(&priv->tx.tx_lock);
|
|
break;
|
|
default:
|
|
ath_err(ath9k_hw_common(priv->ah), "Unknown AMPDU action\n");
|
|
}
|
|
|
|
ath9k_htc_ps_restore(priv);
|
|
mutex_unlock(&priv->mutex);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void ath9k_htc_sw_scan_start(struct ieee80211_hw *hw)
|
|
{
|
|
struct ath9k_htc_priv *priv = hw->priv;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
spin_lock_bh(&priv->beacon_lock);
|
|
priv->op_flags |= OP_SCANNING;
|
|
spin_unlock_bh(&priv->beacon_lock);
|
|
cancel_work_sync(&priv->ps_work);
|
|
ath9k_htc_stop_ani(priv);
|
|
mutex_unlock(&priv->mutex);
|
|
}
|
|
|
|
static void ath9k_htc_sw_scan_complete(struct ieee80211_hw *hw)
|
|
{
|
|
struct ath9k_htc_priv *priv = hw->priv;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
spin_lock_bh(&priv->beacon_lock);
|
|
priv->op_flags &= ~OP_SCANNING;
|
|
spin_unlock_bh(&priv->beacon_lock);
|
|
ath9k_htc_ps_wakeup(priv);
|
|
ath9k_htc_vif_reconfig(priv);
|
|
ath9k_htc_ps_restore(priv);
|
|
mutex_unlock(&priv->mutex);
|
|
}
|
|
|
|
static int ath9k_htc_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static void ath9k_htc_set_coverage_class(struct ieee80211_hw *hw,
|
|
u8 coverage_class)
|
|
{
|
|
struct ath9k_htc_priv *priv = hw->priv;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
ath9k_htc_ps_wakeup(priv);
|
|
priv->ah->coverage_class = coverage_class;
|
|
ath9k_hw_init_global_settings(priv->ah);
|
|
ath9k_htc_ps_restore(priv);
|
|
mutex_unlock(&priv->mutex);
|
|
}
|
|
|
|
/*
|
|
* Currently, this is used only for selecting the minimum rate
|
|
* for management frames, rate selection for data frames remain
|
|
* unaffected.
|
|
*/
|
|
static int ath9k_htc_set_bitrate_mask(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
const struct cfg80211_bitrate_mask *mask)
|
|
{
|
|
struct ath9k_htc_priv *priv = hw->priv;
|
|
struct ath_common *common = ath9k_hw_common(priv->ah);
|
|
struct ath9k_htc_target_rate_mask tmask;
|
|
struct ath9k_htc_vif *avp = (void *)vif->drv_priv;
|
|
int ret = 0;
|
|
u8 cmd_rsp;
|
|
|
|
memset(&tmask, 0, sizeof(struct ath9k_htc_target_rate_mask));
|
|
|
|
tmask.vif_index = avp->index;
|
|
tmask.band = IEEE80211_BAND_2GHZ;
|
|
tmask.mask = cpu_to_be32(mask->control[IEEE80211_BAND_2GHZ].legacy);
|
|
|
|
WMI_CMD_BUF(WMI_BITRATE_MASK_CMDID, &tmask);
|
|
if (ret) {
|
|
ath_err(common,
|
|
"Unable to set 2G rate mask for "
|
|
"interface at idx: %d\n", avp->index);
|
|
goto out;
|
|
}
|
|
|
|
tmask.band = IEEE80211_BAND_5GHZ;
|
|
tmask.mask = cpu_to_be32(mask->control[IEEE80211_BAND_5GHZ].legacy);
|
|
|
|
WMI_CMD_BUF(WMI_BITRATE_MASK_CMDID, &tmask);
|
|
if (ret) {
|
|
ath_err(common,
|
|
"Unable to set 5G rate mask for "
|
|
"interface at idx: %d\n", avp->index);
|
|
goto out;
|
|
}
|
|
|
|
ath_dbg(common, CONFIG, "Set bitrate masks: 0x%x, 0x%x\n",
|
|
mask->control[IEEE80211_BAND_2GHZ].legacy,
|
|
mask->control[IEEE80211_BAND_5GHZ].legacy);
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int ath9k_htc_get_stats(struct ieee80211_hw *hw,
|
|
struct ieee80211_low_level_stats *stats)
|
|
{
|
|
struct ath9k_htc_priv *priv = hw->priv;
|
|
struct ath_hw *ah = priv->ah;
|
|
struct ath9k_mib_stats *mib_stats = &ah->ah_mibStats;
|
|
|
|
stats->dot11ACKFailureCount = mib_stats->ackrcv_bad;
|
|
stats->dot11RTSFailureCount = mib_stats->rts_bad;
|
|
stats->dot11FCSErrorCount = mib_stats->fcs_bad;
|
|
stats->dot11RTSSuccessCount = mib_stats->rts_good;
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct ieee80211_ops ath9k_htc_ops = {
|
|
.tx = ath9k_htc_tx,
|
|
.start = ath9k_htc_start,
|
|
.stop = ath9k_htc_stop,
|
|
.add_interface = ath9k_htc_add_interface,
|
|
.remove_interface = ath9k_htc_remove_interface,
|
|
.config = ath9k_htc_config,
|
|
.configure_filter = ath9k_htc_configure_filter,
|
|
.sta_add = ath9k_htc_sta_add,
|
|
.sta_remove = ath9k_htc_sta_remove,
|
|
.conf_tx = ath9k_htc_conf_tx,
|
|
.bss_info_changed = ath9k_htc_bss_info_changed,
|
|
.set_key = ath9k_htc_set_key,
|
|
.get_tsf = ath9k_htc_get_tsf,
|
|
.set_tsf = ath9k_htc_set_tsf,
|
|
.reset_tsf = ath9k_htc_reset_tsf,
|
|
.ampdu_action = ath9k_htc_ampdu_action,
|
|
.sw_scan_start = ath9k_htc_sw_scan_start,
|
|
.sw_scan_complete = ath9k_htc_sw_scan_complete,
|
|
.set_rts_threshold = ath9k_htc_set_rts_threshold,
|
|
.rfkill_poll = ath9k_htc_rfkill_poll_state,
|
|
.set_coverage_class = ath9k_htc_set_coverage_class,
|
|
.set_bitrate_mask = ath9k_htc_set_bitrate_mask,
|
|
.get_stats = ath9k_htc_get_stats,
|
|
};
|