diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-core.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-core.c | 727 |
1 files changed, 699 insertions, 28 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index c54fb93..5393fb3f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -273,6 +273,14 @@ void iwl_activate_qos(struct iwl_priv *priv, u8 force) } EXPORT_SYMBOL(iwl_activate_qos); +/* + * AC CWmin CW max AIFSN TXOP Limit TXOP Limit + * (802.11b) (802.11a/g) + * AC_BK 15 1023 7 0 0 + * AC_BE 15 1023 3 0 0 + * AC_VI 7 15 2 6.016ms 3.008ms + * AC_VO 3 7 2 3.264ms 1.504ms + */ void iwl_reset_qos(struct iwl_priv *priv) { u16 cw_min = 15; @@ -304,6 +312,7 @@ void iwl_reset_qos(struct iwl_priv *priv) if (priv->qos_data.qos_active) aifs = 3; + /* AC_BE */ priv->qos_data.def_qos_parm.ac[0].cw_min = cpu_to_le16(cw_min); priv->qos_data.def_qos_parm.ac[0].cw_max = cpu_to_le16(cw_max); priv->qos_data.def_qos_parm.ac[0].aifsn = aifs; @@ -311,6 +320,7 @@ void iwl_reset_qos(struct iwl_priv *priv) priv->qos_data.def_qos_parm.ac[0].reserved1 = 0; if (priv->qos_data.qos_active) { + /* AC_BK */ i = 1; priv->qos_data.def_qos_parm.ac[i].cw_min = cpu_to_le16(cw_min); priv->qos_data.def_qos_parm.ac[i].cw_max = cpu_to_le16(cw_max); @@ -318,11 +328,12 @@ void iwl_reset_qos(struct iwl_priv *priv) priv->qos_data.def_qos_parm.ac[i].edca_txop = 0; priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; + /* AC_VI */ i = 2; priv->qos_data.def_qos_parm.ac[i].cw_min = cpu_to_le16((cw_min + 1) / 2 - 1); priv->qos_data.def_qos_parm.ac[i].cw_max = - cpu_to_le16(cw_max); + cpu_to_le16(cw_min); priv->qos_data.def_qos_parm.ac[i].aifsn = 2; if (is_legacy) priv->qos_data.def_qos_parm.ac[i].edca_txop = @@ -332,11 +343,12 @@ void iwl_reset_qos(struct iwl_priv *priv) cpu_to_le16(3008); priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; + /* AC_VO */ i = 3; priv->qos_data.def_qos_parm.ac[i].cw_min = cpu_to_le16((cw_min + 1) / 4 - 1); priv->qos_data.def_qos_parm.ac[i].cw_max = - cpu_to_le16((cw_max + 1) / 2 - 1); + cpu_to_le16((cw_min + 1) / 2 - 1); priv->qos_data.def_qos_parm.ac[i].aifsn = 2; priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; if (is_legacy) @@ -735,6 +747,8 @@ int iwl_full_rxon_required(struct iwl_priv *priv) priv->active_rxon.ofdm_ht_single_stream_basic_rates) || (priv->staging_rxon.ofdm_ht_dual_stream_basic_rates != priv->active_rxon.ofdm_ht_dual_stream_basic_rates) || + (priv->staging_rxon.ofdm_ht_triple_stream_basic_rates != + priv->active_rxon.ofdm_ht_triple_stream_basic_rates) || (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id)) return 1; @@ -821,7 +835,8 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info) rxon->flags |= cpu_to_le32(val << RXON_FLG_HT_OPERATING_MODE_POS); - iwl_set_rxon_chain(priv); + if (priv->cfg->ops->hcmd->set_rxon_chain) + priv->cfg->ops->hcmd->set_rxon_chain(priv); IWL_DEBUG_ASSOC(priv, "supported HT rate 0x%X 0x%X 0x%X " "rxon flags 0x%X operation mode :0x%X " @@ -901,10 +916,11 @@ static u8 iwl_count_chain_bitmap(u32 chain_bitmap) * never called for monitor mode. The only way mac80211 informs us about * monitor mode is through configuring filters (call to configure_filter). */ -static bool iwl_is_monitor_mode(struct iwl_priv *priv) +bool iwl_is_monitor_mode(struct iwl_priv *priv) { return !!(priv->staging_rxon.filter_flags & RXON_FILTER_PROMISC_MSK); } +EXPORT_SYMBOL(iwl_is_monitor_mode); /** * iwl_set_rxon_chain - Set up Rx chain usage in "staging" RXON image @@ -956,10 +972,10 @@ void iwl_set_rxon_chain(struct iwl_priv *priv) if (iwl_is_monitor_mode(priv) && !(priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) && ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965)) { - rx_chain = 0x07 << RXON_RX_CHAIN_VALID_POS; - rx_chain |= 0x06 << RXON_RX_CHAIN_FORCE_SEL_POS; - rx_chain |= 0x07 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS; - rx_chain |= 0x01 << RXON_RX_CHAIN_DRIVER_FORCE_POS; + rx_chain = ANT_ABC << RXON_RX_CHAIN_VALID_POS; + rx_chain |= ANT_BC << RXON_RX_CHAIN_FORCE_SEL_POS; + rx_chain |= ANT_ABC << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS; + rx_chain |= 0x1 << RXON_RX_CHAIN_DRIVER_FORCE_POS; } priv->staging_rxon.rx_chain = cpu_to_le16(rx_chain); @@ -1068,11 +1084,6 @@ void iwl_connection_init_rx_config(struct iwl_priv *priv, int mode) RXON_FILTER_ACCEPT_GRP_MSK; break; - case NL80211_IFTYPE_MONITOR: - priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER; - priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK | - RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK; - break; default: IWL_ERR(priv, "Unsupported interface type %d\n", mode); break; @@ -1117,10 +1128,11 @@ void iwl_connection_init_rx_config(struct iwl_priv *priv, int mode) memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN); priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff; priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff; + priv->staging_rxon.ofdm_ht_triple_stream_basic_rates = 0xff; } EXPORT_SYMBOL(iwl_connection_init_rx_config); -void iwl_set_rate(struct iwl_priv *priv) +static void iwl_set_rate(struct iwl_priv *priv) { const struct ieee80211_supported_band *hw = NULL; struct ieee80211_rate *rate; @@ -1166,7 +1178,6 @@ void iwl_set_rate(struct iwl_priv *priv) priv->staging_rxon.ofdm_basic_rates = (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; } -EXPORT_SYMBOL(iwl_set_rate); void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) { @@ -1230,11 +1241,6 @@ void iwl_irq_handle_error(struct iwl_priv *priv) IWL_DEBUG(priv, IWL_DL_FW_ERRORS, "Restarting adapter due to uCode error.\n"); - if (iwl_is_associated(priv)) { - memcpy(&priv->recovery_rxon, &priv->active_rxon, - sizeof(priv->recovery_rxon)); - priv->error_recovering = 1; - } if (priv->cfg->mod_params->restart_fw) queue_work(priv->workqueue, &priv->restart); } @@ -1298,19 +1304,20 @@ int iwl_setup_mac(struct iwl_priv *priv) hw->flags = IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_NOISE_DBM | IEEE80211_HW_AMPDU_AGGREGATION | - IEEE80211_HW_SPECTRUM_MGMT | - IEEE80211_HW_SUPPORTS_PS; + IEEE80211_HW_SPECTRUM_MGMT; hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC); hw->wiphy->custom_regulatory = true; - hw->wiphy->max_scan_ssids = 1; + + hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; + /* we create the 802.11 header and a zero-length SSID element */ + hw->wiphy->max_scan_ie_len = IWL_MAX_PROBE_REQUEST - 24 - 2; /* Default value; 4 EDCA QOS priorities */ hw->queues = 4; - hw->conf.beacon_int = 100; hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) @@ -1357,7 +1364,6 @@ int iwl_init_drv(struct iwl_priv *priv) priv->ibss_beacon = NULL; spin_lock_init(&priv->lock); - spin_lock_init(&priv->power_data.lock); spin_lock_init(&priv->sta_lock); spin_lock_init(&priv->hcmd_lock); @@ -1366,7 +1372,7 @@ int iwl_init_drv(struct iwl_priv *priv) mutex_init(&priv->mutex); /* Clear the driver's (not device's) station table */ - iwl_clear_stations_table(priv); + priv->cfg->ops->smgmt->clear_station_table(priv); priv->data_retry_limit = -1; priv->ieee_channels = NULL; @@ -1378,7 +1384,9 @@ int iwl_init_drv(struct iwl_priv *priv) priv->current_ht_config.sm_ps = WLAN_HT_CAP_SM_PS_DISABLED; /* Choose which receivers/antennas to use */ - iwl_set_rxon_chain(priv); + if (priv->cfg->ops->hcmd->set_rxon_chain) + priv->cfg->ops->hcmd->set_rxon_chain(priv); + iwl_init_scan_params(priv); iwl_reset_qos(priv); @@ -2054,7 +2062,7 @@ void iwl_bg_rf_kill(struct work_struct *work) "HW and/or SW RF Kill no longer active, restarting " "device\n"); if (!test_bit(STATUS_EXIT_PENDING, &priv->status) && - test_bit(STATUS_ALIVE, &priv->status)) + priv->is_open) queue_work(priv->workqueue, &priv->restart); } else { /* make sure mac80211 stop sending Tx frame */ @@ -2112,3 +2120,666 @@ void iwl_rx_reply_error(struct iwl_priv *priv, } EXPORT_SYMBOL(iwl_rx_reply_error); +void iwl_clear_isr_stats(struct iwl_priv *priv) +{ + memset(&priv->isr_stats, 0, sizeof(priv->isr_stats)); +} +EXPORT_SYMBOL(iwl_clear_isr_stats); + +int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue, + const struct ieee80211_tx_queue_params *params) +{ + struct iwl_priv *priv = hw->priv; + unsigned long flags; + int q; + + IWL_DEBUG_MAC80211(priv, "enter\n"); + + if (!iwl_is_ready_rf(priv)) { + IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); + return -EIO; + } + + if (queue >= AC_NUM) { + IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue); + return 0; + } + + q = AC_NUM - 1 - queue; + + spin_lock_irqsave(&priv->lock, flags); + + priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min); + priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max); + priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; + priv->qos_data.def_qos_parm.ac[q].edca_txop = + cpu_to_le16((params->txop * 32)); + + priv->qos_data.def_qos_parm.ac[q].reserved1 = 0; + priv->qos_data.qos_active = 1; + + if (priv->iw_mode == NL80211_IFTYPE_AP) + iwl_activate_qos(priv, 1); + else if (priv->assoc_id && iwl_is_associated(priv)) + iwl_activate_qos(priv, 0); + + spin_unlock_irqrestore(&priv->lock, flags); + + IWL_DEBUG_MAC80211(priv, "leave\n"); + return 0; +} +EXPORT_SYMBOL(iwl_mac_conf_tx); + +static void iwl_ht_conf(struct iwl_priv *priv, + struct ieee80211_bss_conf *bss_conf) +{ + struct ieee80211_sta_ht_cap *ht_conf; + struct iwl_ht_info *iwl_conf = &priv->current_ht_config; + struct ieee80211_sta *sta; + + IWL_DEBUG_MAC80211(priv, "enter: \n"); + + if (!iwl_conf->is_ht) + return; + + + /* + * It is totally wrong to base global information on something + * that is valid only when associated, alas, this driver works + * that way and I don't know how to fix it. + */ + + rcu_read_lock(); + sta = ieee80211_find_sta(priv->hw, priv->bssid); + if (!sta) { + rcu_read_unlock(); + return; + } + ht_conf = &sta->ht_cap; + + if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20) + iwl_conf->sgf |= HT_SHORT_GI_20MHZ; + if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40) + iwl_conf->sgf |= HT_SHORT_GI_40MHZ; + + iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD); + iwl_conf->max_amsdu_size = + !!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU); + + iwl_conf->supported_chan_width = + !!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40); + + /* + * 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 (conf_is_ht40_minus(&priv->hw->conf)) + iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_BELOW; + else if (conf_is_ht40_plus(&priv->hw->conf)) + 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->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 = 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 = + !!(bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); + + rcu_read_unlock(); + + IWL_DEBUG_MAC80211(priv, "leave\n"); +} + +#define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6) +void iwl_bss_info_changed(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_bss_conf *bss_conf, + u32 changes) +{ + struct iwl_priv *priv = hw->priv; + int ret; + + IWL_DEBUG_MAC80211(priv, "changes = 0x%X\n", changes); + + if (!iwl_is_alive(priv)) + return; + + mutex_lock(&priv->mutex); + + if (changes & BSS_CHANGED_BEACON && + priv->iw_mode == NL80211_IFTYPE_AP) { + dev_kfree_skb(priv->ibss_beacon); + priv->ibss_beacon = ieee80211_beacon_get(hw, vif); + } + + if ((changes & BSS_CHANGED_BSSID) && !iwl_is_rfkill(priv)) { + /* If there is currently a HW scan going on in the background + * then we need to cancel it else the RXON below will fail. */ + if (iwl_scan_cancel_timeout(priv, 100)) { + IWL_WARN(priv, "Aborted scan still in progress " + "after 100ms\n"); + IWL_DEBUG_MAC80211(priv, "leaving - scan abort failed.\n"); + mutex_unlock(&priv->mutex); + return; + } + memcpy(priv->staging_rxon.bssid_addr, + bss_conf->bssid, ETH_ALEN); + + /* TODO: Audit driver for usage of these members and see + * if mac80211 deprecates them (priv->bssid looks like it + * shouldn't be there, but I haven't scanned the IBSS code + * to verify) - jpk */ + memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN); + + if (priv->iw_mode == NL80211_IFTYPE_AP) + iwlcore_config_ap(priv); + else { + int rc = iwlcore_commit_rxon(priv); + if ((priv->iw_mode == NL80211_IFTYPE_STATION) && rc) + iwl_rxon_add_station( + priv, priv->active_rxon.bssid_addr, 1); + } + } else if (!iwl_is_rfkill(priv)) { + iwl_scan_cancel_timeout(priv, 100); + priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; + iwlcore_commit_rxon(priv); + } + + if (priv->iw_mode == NL80211_IFTYPE_ADHOC && + changes & BSS_CHANGED_BEACON) { + struct sk_buff *beacon = ieee80211_beacon_get(hw, vif); + + if (beacon) + iwl_mac_beacon_update(hw, beacon); + } + + mutex_unlock(&priv->mutex); + + if (changes & BSS_CHANGED_ERP_PREAMBLE) { + IWL_DEBUG_MAC80211(priv, "ERP_PREAMBLE %d\n", + bss_conf->use_short_preamble); + if (bss_conf->use_short_preamble) + priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; + else + priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; + } + + if (changes & BSS_CHANGED_ERP_CTS_PROT) { + IWL_DEBUG_MAC80211(priv, "ERP_CTS %d\n", bss_conf->use_cts_prot); + if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ)) + priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK; + else + priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK; + } + + if (changes & BSS_CHANGED_HT) { + iwl_ht_conf(priv, bss_conf); + + if (priv->cfg->ops->hcmd->set_rxon_chain) + priv->cfg->ops->hcmd->set_rxon_chain(priv); + } + + if (changes & BSS_CHANGED_ASSOC) { + IWL_DEBUG_MAC80211(priv, "ASSOC %d\n", bss_conf->assoc); + /* This should never happen as this function should + * never be called from interrupt context. */ + if (WARN_ON_ONCE(in_interrupt())) + return; + if (bss_conf->assoc) { + priv->assoc_id = bss_conf->aid; + priv->beacon_int = bss_conf->beacon_int; + priv->power_data.dtim_period = bss_conf->dtim_period; + priv->timestamp = bss_conf->timestamp; + priv->assoc_capability = bss_conf->assoc_capability; + + /* we have just associated, don't start scan too early + * leave time for EAPOL exchange to complete + */ + priv->next_scan_jiffies = jiffies + + IWL_DELAY_NEXT_SCAN_AFTER_ASSOC; + mutex_lock(&priv->mutex); + priv->cfg->ops->lib->post_associate(priv); + mutex_unlock(&priv->mutex); + } else { + priv->assoc_id = 0; + IWL_DEBUG_MAC80211(priv, "DISASSOC %d\n", bss_conf->assoc); + } + } else if (changes && iwl_is_associated(priv) && priv->assoc_id) { + IWL_DEBUG_MAC80211(priv, "Associated Changes %d\n", changes); + ret = iwl_send_rxon_assoc(priv); + if (!ret) + /* Sync active_rxon with latest change. */ + memcpy((void *)&priv->active_rxon, + &priv->staging_rxon, + sizeof(struct iwl_rxon_cmd)); + } + IWL_DEBUG_MAC80211(priv, "leave\n"); +} +EXPORT_SYMBOL(iwl_bss_info_changed); + +int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb) +{ + struct iwl_priv *priv = hw->priv; + unsigned long flags; + __le64 timestamp; + + IWL_DEBUG_MAC80211(priv, "enter\n"); + + if (!iwl_is_ready_rf(priv)) { + IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); + return -EIO; + } + + if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { + IWL_DEBUG_MAC80211(priv, "leave - not IBSS\n"); + return -EIO; + } + + spin_lock_irqsave(&priv->lock, flags); + + if (priv->ibss_beacon) + dev_kfree_skb(priv->ibss_beacon); + + priv->ibss_beacon = skb; + + priv->assoc_id = 0; + timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp; + priv->timestamp = le64_to_cpu(timestamp); + + IWL_DEBUG_MAC80211(priv, "leave\n"); + spin_unlock_irqrestore(&priv->lock, flags); + + iwl_reset_qos(priv); + + priv->cfg->ops->lib->post_associate(priv); + + + return 0; +} +EXPORT_SYMBOL(iwl_mac_beacon_update); + +int iwl_set_mode(struct iwl_priv *priv, int mode) +{ + if (mode == NL80211_IFTYPE_ADHOC) { + const struct iwl_channel_info *ch_info; + + ch_info = iwl_get_channel_info(priv, + priv->band, + le16_to_cpu(priv->staging_rxon.channel)); + + if (!ch_info || !is_channel_ibss(ch_info)) { + IWL_ERR(priv, "channel %d not IBSS channel\n", + le16_to_cpu(priv->staging_rxon.channel)); + return -EINVAL; + } + } + + iwl_connection_init_rx_config(priv, mode); + + if (priv->cfg->ops->hcmd->set_rxon_chain) + priv->cfg->ops->hcmd->set_rxon_chain(priv); + + memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); + + priv->cfg->ops->smgmt->clear_station_table(priv); + + /* dont commit rxon if rf-kill is on*/ + if (!iwl_is_ready_rf(priv)) + return -EAGAIN; + + cancel_delayed_work(&priv->scan_check); + if (iwl_scan_cancel_timeout(priv, 100)) { + IWL_WARN(priv, "Aborted scan still in progress after 100ms\n"); + IWL_DEBUG_MAC80211(priv, "leaving - scan abort failed.\n"); + return -EAGAIN; + } + + iwlcore_commit_rxon(priv); + + return 0; +} +EXPORT_SYMBOL(iwl_set_mode); + +int iwl_mac_add_interface(struct ieee80211_hw *hw, + struct ieee80211_if_init_conf *conf) +{ + struct iwl_priv *priv = hw->priv; + unsigned long flags; + + IWL_DEBUG_MAC80211(priv, "enter: type %d\n", conf->type); + + if (priv->vif) { + IWL_DEBUG_MAC80211(priv, "leave - vif != NULL\n"); + return -EOPNOTSUPP; + } + + spin_lock_irqsave(&priv->lock, flags); + priv->vif = conf->vif; + priv->iw_mode = conf->type; + + spin_unlock_irqrestore(&priv->lock, flags); + + mutex_lock(&priv->mutex); + + if (conf->mac_addr) { + IWL_DEBUG_MAC80211(priv, "Set %pM\n", conf->mac_addr); + memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN); + } + + if (iwl_set_mode(priv, conf->type) == -EAGAIN) + /* we are not ready, will run again when ready */ + set_bit(STATUS_MODE_PENDING, &priv->status); + + mutex_unlock(&priv->mutex); + + IWL_DEBUG_MAC80211(priv, "leave\n"); + return 0; +} +EXPORT_SYMBOL(iwl_mac_add_interface); + +void iwl_mac_remove_interface(struct ieee80211_hw *hw, + struct ieee80211_if_init_conf *conf) +{ + struct iwl_priv *priv = hw->priv; + + IWL_DEBUG_MAC80211(priv, "enter\n"); + + mutex_lock(&priv->mutex); + + if (iwl_is_ready_rf(priv)) { + iwl_scan_cancel_timeout(priv, 100); + priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; + iwlcore_commit_rxon(priv); + } + if (priv->vif == conf->vif) { + priv->vif = NULL; + memset(priv->bssid, 0, ETH_ALEN); + } + mutex_unlock(&priv->mutex); + + IWL_DEBUG_MAC80211(priv, "leave\n"); + +} +EXPORT_SYMBOL(iwl_mac_remove_interface); + +/** + * iwl_mac_config - mac80211 config callback + * + * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to + * be set inappropriately and the driver currently sets the hardware up to + * use it whenever needed. + */ +int iwl_mac_config(struct ieee80211_hw *hw, u32 changed) +{ + struct iwl_priv *priv = hw->priv; + const struct iwl_channel_info *ch_info; + struct ieee80211_conf *conf = &hw->conf; + unsigned long flags = 0; + int ret = 0; + u16 ch; + int scan_active = 0; + + mutex_lock(&priv->mutex); + + IWL_DEBUG_MAC80211(priv, "enter to channel %d changed 0x%X\n", + conf->channel->hw_value, changed); + + if (unlikely(!priv->cfg->mod_params->disable_hw_scan && + test_bit(STATUS_SCANNING, &priv->status))) { + scan_active = 1; + IWL_DEBUG_MAC80211(priv, "leave - scanning\n"); + } + + + /* during scanning mac80211 will delay channel setting until + * scan finish with changed = 0 + */ + if (!changed || (changed & IEEE80211_CONF_CHANGE_CHANNEL)) { + if (scan_active) + goto set_ch_out; + + ch = ieee80211_frequency_to_channel(conf->channel->center_freq); + ch_info = iwl_get_channel_info(priv, conf->channel->band, ch); + if (!is_channel_valid(ch_info)) { + IWL_DEBUG_MAC80211(priv, "leave - invalid channel\n"); + ret = -EINVAL; + goto set_ch_out; + } + + if (priv->iw_mode == NL80211_IFTYPE_ADHOC && + !is_channel_ibss(ch_info)) { + IWL_ERR(priv, "channel %d in band %d not " + "IBSS channel\n", + conf->channel->hw_value, conf->channel->band); + ret = -EINVAL; + goto set_ch_out; + } + + priv->current_ht_config.is_ht = conf_is_ht(conf); + + spin_lock_irqsave(&priv->lock, flags); + + + /* if we are switching from ht to 2.4 clear flags + * from any ht related info since 2.4 does not + * support ht */ + if ((le16_to_cpu(priv->staging_rxon.channel) != ch)) + priv->staging_rxon.flags = 0; + + iwl_set_rxon_channel(priv, conf->channel); + + iwl_set_flags_for_band(priv, conf->channel->band); + spin_unlock_irqrestore(&priv->lock, flags); + set_ch_out: + /* The list of supported rates and rate mask can be different + * for each band; since the band may have changed, reset + * the rate mask to what mac80211 lists */ + iwl_set_rate(priv); + } + + if (changed & IEEE80211_CONF_CHANGE_PS && + priv->iw_mode == NL80211_IFTYPE_STATION) { + priv->power_data.power_disabled = + !(conf->flags & IEEE80211_CONF_PS); + ret = iwl_power_update_mode(priv, 0); + if (ret) + IWL_DEBUG_MAC80211(priv, "Error setting power level\n"); + } + + if (changed & IEEE80211_CONF_CHANGE_POWER) { + IWL_DEBUG_MAC80211(priv, "TX Power old=%d new=%d\n", + priv->tx_power_user_lmt, conf->power_level); + + iwl_set_tx_power(priv, conf->power_level, false); + } + + /* call to ensure that 4965 rx_chain is set properly in monitor mode */ + if (priv->cfg->ops->hcmd->set_rxon_chain) + priv->cfg->ops->hcmd->set_rxon_chain(priv); + + if (changed & IEEE80211_CONF_CHANGE_RADIO_ENABLED) { + if (conf->radio_enabled && + iwl_radio_kill_sw_enable_radio(priv)) { + IWL_DEBUG_MAC80211(priv, "leave - RF-KILL - " + "waiting for uCode\n"); + goto out; + } + + if (!conf->radio_enabled) + iwl_radio_kill_sw_disable_radio(priv); + } + + if (!conf->radio_enabled) { + IWL_DEBUG_MAC80211(priv, "leave - radio disabled\n"); + goto out; + } + + if (!iwl_is_ready(priv)) { + IWL_DEBUG_MAC80211(priv, "leave - not ready\n"); + goto out; + } + + if (scan_active) + goto out; + + if (memcmp(&priv->active_rxon, + &priv->staging_rxon, sizeof(priv->staging_rxon))) + iwlcore_commit_rxon(priv); + else + IWL_DEBUG_INFO(priv, "Not re-sending same RXON configuration.\n"); + + +out: + IWL_DEBUG_MAC80211(priv, "leave\n"); + mutex_unlock(&priv->mutex); + return ret; +} +EXPORT_SYMBOL(iwl_mac_config); + +int iwl_mac_get_tx_stats(struct ieee80211_hw *hw, + struct ieee80211_tx_queue_stats *stats) +{ + struct iwl_priv *priv = hw->priv; + int i, avail; + struct iwl_tx_queue *txq; + struct iwl_queue *q; + unsigned long flags; + + IWL_DEBUG_MAC80211(priv, "enter\n"); + + if (!iwl_is_ready_rf(priv)) { + IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); + return -EIO; + } + + spin_lock_irqsave(&priv->lock, flags); + + for (i = 0; i < AC_NUM; i++) { + txq = &priv->txq[i]; + q = &txq->q; + avail = iwl_queue_space(q); + + stats[i].len = q->n_window - avail; + stats[i].limit = q->n_window - q->high_mark; + stats[i].count = q->n_window; + + } + spin_unlock_irqrestore(&priv->lock, flags); + + IWL_DEBUG_MAC80211(priv, "leave\n"); + + return 0; +} +EXPORT_SYMBOL(iwl_mac_get_tx_stats); + +void iwl_mac_reset_tsf(struct ieee80211_hw *hw) +{ + struct iwl_priv *priv = hw->priv; + unsigned long flags; + + mutex_lock(&priv->mutex); + IWL_DEBUG_MAC80211(priv, "enter\n"); + + spin_lock_irqsave(&priv->lock, flags); + memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_info)); + spin_unlock_irqrestore(&priv->lock, flags); + + iwl_reset_qos(priv); + + spin_lock_irqsave(&priv->lock, flags); + priv->assoc_id = 0; + priv->assoc_capability = 0; + priv->assoc_station_added = 0; + + /* new association get rid of ibss beacon skb */ + if (priv->ibss_beacon) + dev_kfree_skb(priv->ibss_beacon); + + priv->ibss_beacon = NULL; + + priv->beacon_int = priv->vif->bss_conf.beacon_int; + priv->timestamp = 0; + if ((priv->iw_mode == NL80211_IFTYPE_STATION)) + priv->beacon_int = 0; + + spin_unlock_irqrestore(&priv->lock, flags); + + if (!iwl_is_ready_rf(priv)) { + IWL_DEBUG_MAC80211(priv, "leave - not ready\n"); + mutex_unlock(&priv->mutex); + return; + } + + /* we are restarting association process + * clear RXON_FILTER_ASSOC_MSK bit + */ + if (priv->iw_mode != NL80211_IFTYPE_AP) { + iwl_scan_cancel_timeout(priv, 100); + priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; + iwlcore_commit_rxon(priv); + } + + if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { + IWL_DEBUG_MAC80211(priv, "leave - not in IBSS\n"); + mutex_unlock(&priv->mutex); + return; + } + + iwl_set_rate(priv); + + mutex_unlock(&priv->mutex); + + IWL_DEBUG_MAC80211(priv, "leave\n"); +} +EXPORT_SYMBOL(iwl_mac_reset_tsf); + +#ifdef CONFIG_PM + +int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state) +{ + struct iwl_priv *priv = pci_get_drvdata(pdev); + + /* + * This function is called when system goes into suspend state + * mac80211 will call iwl_mac_stop() from the mac80211 suspend function + * first but since iwl_mac_stop() has no knowledge of who the caller is, + * it will not call apm_ops.stop() to stop the DMA operation. + * Calling apm_ops.stop here to make sure we stop the DMA. + */ + priv->cfg->ops->lib->apm_ops.stop(priv); + + pci_save_state(pdev); + pci_disable_device(pdev); + pci_set_power_state(pdev, PCI_D3hot); + + return 0; +} +EXPORT_SYMBOL(iwl_pci_suspend); + +int iwl_pci_resume(struct pci_dev *pdev) +{ + struct iwl_priv *priv = pci_get_drvdata(pdev); + int ret; + + pci_set_power_state(pdev, PCI_D0); + ret = pci_enable_device(pdev); + if (ret) + return ret; + pci_restore_state(pdev); + iwl_enable_interrupts(priv); + + return 0; +} +EXPORT_SYMBOL(iwl_pci_resume); + +#endif /* CONFIG_PM */ |
