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![Don Fry](/assets/img/avatar_default.png)
Move the configuration pointer from the upper level iwl_priv to the lower level iwl_shared structure, with associated code fixes. Signed-off-by: Don Fry <donald.h.fry@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
960 lines
26 KiB
C
960 lines
26 KiB
C
/******************************************************************************
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*
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* Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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* The full GNU General Public License is included in this distribution in the
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* file called LICENSE.
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*
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* Contact Information:
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* Intel Linux Wireless <ilw@linux.intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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*****************************************************************************/
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#include "iwl-dev.h"
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#include "iwl-agn.h"
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#include "iwl-core.h"
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#include "iwl-agn-calib.h"
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#include "iwl-trans.h"
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#include "iwl-shared.h"
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static int iwlagn_disable_bss(struct iwl_priv *priv,
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struct iwl_rxon_context *ctx,
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struct iwl_rxon_cmd *send)
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{
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__le32 old_filter = send->filter_flags;
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int ret;
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send->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
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ret = iwl_trans_send_cmd_pdu(trans(priv), ctx->rxon_cmd,
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CMD_SYNC, sizeof(*send), send);
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send->filter_flags = old_filter;
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if (ret)
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IWL_DEBUG_QUIET_RFKILL(priv,
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"Error clearing ASSOC_MSK on BSS (%d)\n", ret);
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return ret;
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}
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static int iwlagn_disable_pan(struct iwl_priv *priv,
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struct iwl_rxon_context *ctx,
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struct iwl_rxon_cmd *send)
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{
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struct iwl_notification_wait disable_wait;
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__le32 old_filter = send->filter_flags;
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u8 old_dev_type = send->dev_type;
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int ret;
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iwl_init_notification_wait(priv->shrd, &disable_wait,
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REPLY_WIPAN_DEACTIVATION_COMPLETE,
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NULL, NULL);
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send->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
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send->dev_type = RXON_DEV_TYPE_P2P;
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ret = iwl_trans_send_cmd_pdu(trans(priv), ctx->rxon_cmd,
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CMD_SYNC, sizeof(*send), send);
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send->filter_flags = old_filter;
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send->dev_type = old_dev_type;
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if (ret) {
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IWL_ERR(priv, "Error disabling PAN (%d)\n", ret);
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iwl_remove_notification(priv->shrd, &disable_wait);
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} else {
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ret = iwl_wait_notification(priv->shrd, &disable_wait, HZ);
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if (ret)
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IWL_ERR(priv, "Timed out waiting for PAN disable\n");
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}
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return ret;
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}
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static int iwlagn_disconn_pan(struct iwl_priv *priv,
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struct iwl_rxon_context *ctx,
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struct iwl_rxon_cmd *send)
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{
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__le32 old_filter = send->filter_flags;
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int ret;
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send->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
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ret = iwl_trans_send_cmd_pdu(trans(priv), ctx->rxon_cmd, CMD_SYNC,
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sizeof(*send), send);
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send->filter_flags = old_filter;
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return ret;
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}
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static void iwlagn_update_qos(struct iwl_priv *priv,
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struct iwl_rxon_context *ctx)
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{
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int ret;
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if (!ctx->is_active)
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return;
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ctx->qos_data.def_qos_parm.qos_flags = 0;
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if (ctx->qos_data.qos_active)
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ctx->qos_data.def_qos_parm.qos_flags |=
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QOS_PARAM_FLG_UPDATE_EDCA_MSK;
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if (ctx->ht.enabled)
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ctx->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
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IWL_DEBUG_INFO(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n",
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ctx->qos_data.qos_active,
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ctx->qos_data.def_qos_parm.qos_flags);
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ret = iwl_trans_send_cmd_pdu(trans(priv), ctx->qos_cmd, CMD_SYNC,
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sizeof(struct iwl_qosparam_cmd),
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&ctx->qos_data.def_qos_parm);
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if (ret)
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IWL_DEBUG_QUIET_RFKILL(priv, "Failed to update QoS\n");
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}
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static int iwlagn_update_beacon(struct iwl_priv *priv,
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struct ieee80211_vif *vif)
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{
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lockdep_assert_held(&priv->shrd->mutex);
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dev_kfree_skb(priv->beacon_skb);
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priv->beacon_skb = ieee80211_beacon_get(priv->hw, vif);
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if (!priv->beacon_skb)
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return -ENOMEM;
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return iwlagn_send_beacon_cmd(priv);
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}
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static int iwlagn_send_rxon_assoc(struct iwl_priv *priv,
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struct iwl_rxon_context *ctx)
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{
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int ret = 0;
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struct iwl_rxon_assoc_cmd rxon_assoc;
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const struct iwl_rxon_cmd *rxon1 = &ctx->staging;
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const struct iwl_rxon_cmd *rxon2 = &ctx->active;
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if ((rxon1->flags == rxon2->flags) &&
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(rxon1->filter_flags == rxon2->filter_flags) &&
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(rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
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(rxon1->ofdm_ht_single_stream_basic_rates ==
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rxon2->ofdm_ht_single_stream_basic_rates) &&
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(rxon1->ofdm_ht_dual_stream_basic_rates ==
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rxon2->ofdm_ht_dual_stream_basic_rates) &&
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(rxon1->ofdm_ht_triple_stream_basic_rates ==
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rxon2->ofdm_ht_triple_stream_basic_rates) &&
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(rxon1->acquisition_data == rxon2->acquisition_data) &&
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(rxon1->rx_chain == rxon2->rx_chain) &&
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(rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
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IWL_DEBUG_INFO(priv, "Using current RXON_ASSOC. Not resending.\n");
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return 0;
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}
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rxon_assoc.flags = ctx->staging.flags;
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rxon_assoc.filter_flags = ctx->staging.filter_flags;
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rxon_assoc.ofdm_basic_rates = ctx->staging.ofdm_basic_rates;
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rxon_assoc.cck_basic_rates = ctx->staging.cck_basic_rates;
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rxon_assoc.reserved1 = 0;
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rxon_assoc.reserved2 = 0;
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rxon_assoc.reserved3 = 0;
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rxon_assoc.ofdm_ht_single_stream_basic_rates =
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ctx->staging.ofdm_ht_single_stream_basic_rates;
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rxon_assoc.ofdm_ht_dual_stream_basic_rates =
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ctx->staging.ofdm_ht_dual_stream_basic_rates;
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rxon_assoc.rx_chain_select_flags = ctx->staging.rx_chain;
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rxon_assoc.ofdm_ht_triple_stream_basic_rates =
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ctx->staging.ofdm_ht_triple_stream_basic_rates;
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rxon_assoc.acquisition_data = ctx->staging.acquisition_data;
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ret = iwl_trans_send_cmd_pdu(trans(priv), ctx->rxon_assoc_cmd,
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CMD_ASYNC, sizeof(rxon_assoc), &rxon_assoc);
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return ret;
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}
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static int iwlagn_rxon_disconn(struct iwl_priv *priv,
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struct iwl_rxon_context *ctx)
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{
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int ret;
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struct iwl_rxon_cmd *active = (void *)&ctx->active;
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if (ctx->ctxid == IWL_RXON_CTX_BSS) {
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ret = iwlagn_disable_bss(priv, ctx, &ctx->staging);
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} else {
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ret = iwlagn_disable_pan(priv, ctx, &ctx->staging);
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if (ret)
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return ret;
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if (ctx->vif) {
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ret = iwl_send_rxon_timing(priv, ctx);
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if (ret) {
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IWL_ERR(priv, "Failed to send timing (%d)!\n", ret);
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return ret;
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}
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ret = iwlagn_disconn_pan(priv, ctx, &ctx->staging);
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}
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}
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if (ret)
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return ret;
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/*
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* Un-assoc RXON clears the station table and WEP
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* keys, so we have to restore those afterwards.
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*/
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iwl_clear_ucode_stations(priv, ctx);
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/* update -- might need P2P now */
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iwl_update_bcast_station(priv, ctx);
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iwl_restore_stations(priv, ctx);
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ret = iwl_restore_default_wep_keys(priv, ctx);
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if (ret) {
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IWL_ERR(priv, "Failed to restore WEP keys (%d)\n", ret);
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return ret;
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}
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memcpy(active, &ctx->staging, sizeof(*active));
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return 0;
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}
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static int iwlagn_rxon_connect(struct iwl_priv *priv,
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struct iwl_rxon_context *ctx)
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{
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int ret;
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struct iwl_rxon_cmd *active = (void *)&ctx->active;
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/* RXON timing must be before associated RXON */
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if (ctx->ctxid == IWL_RXON_CTX_BSS) {
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ret = iwl_send_rxon_timing(priv, ctx);
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if (ret) {
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IWL_ERR(priv, "Failed to send timing (%d)!\n", ret);
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return ret;
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}
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}
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/* QoS info may be cleared by previous un-assoc RXON */
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iwlagn_update_qos(priv, ctx);
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/*
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* We'll run into this code path when beaconing is
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* enabled, but then we also need to send the beacon
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* to the device.
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*/
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if (ctx->vif && (ctx->vif->type == NL80211_IFTYPE_AP)) {
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ret = iwlagn_update_beacon(priv, ctx->vif);
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if (ret) {
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IWL_ERR(priv,
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"Error sending required beacon (%d)!\n",
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ret);
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return ret;
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}
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}
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priv->start_calib = 0;
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/*
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* Apply the new configuration.
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*
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* Associated RXON doesn't clear the station table in uCode,
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* so we don't need to restore stations etc. after this.
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*/
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ret = iwl_trans_send_cmd_pdu(trans(priv), ctx->rxon_cmd, CMD_SYNC,
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sizeof(struct iwl_rxon_cmd), &ctx->staging);
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if (ret) {
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IWL_ERR(priv, "Error setting new RXON (%d)\n", ret);
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return ret;
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}
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memcpy(active, &ctx->staging, sizeof(*active));
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iwl_reprogram_ap_sta(priv, ctx);
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/* IBSS beacon needs to be sent after setting assoc */
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if (ctx->vif && (ctx->vif->type == NL80211_IFTYPE_ADHOC))
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if (iwlagn_update_beacon(priv, ctx->vif))
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IWL_ERR(priv, "Error sending IBSS beacon\n");
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iwl_init_sensitivity(priv);
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/*
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* If we issue a new RXON command which required a tune then
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* we must send a new TXPOWER command or we won't be able to
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* Tx any frames.
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*
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* It's expected we set power here if channel is changing.
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*/
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ret = iwl_set_tx_power(priv, priv->tx_power_next, true);
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if (ret) {
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IWL_ERR(priv, "Error sending TX power (%d)\n", ret);
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return ret;
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}
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if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_STATION &&
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cfg(priv)->ht_params && cfg(priv)->ht_params->smps_mode)
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ieee80211_request_smps(ctx->vif,
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cfg(priv)->ht_params->smps_mode);
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return 0;
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}
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int iwlagn_set_pan_params(struct iwl_priv *priv)
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{
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struct iwl_wipan_params_cmd cmd;
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struct iwl_rxon_context *ctx_bss, *ctx_pan;
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int slot0 = 300, slot1 = 0;
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int ret;
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if (priv->shrd->valid_contexts == BIT(IWL_RXON_CTX_BSS))
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return 0;
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BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
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lockdep_assert_held(&priv->shrd->mutex);
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ctx_bss = &priv->contexts[IWL_RXON_CTX_BSS];
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ctx_pan = &priv->contexts[IWL_RXON_CTX_PAN];
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/*
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* If the PAN context is inactive, then we don't need
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* to update the PAN parameters, the last thing we'll
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* have done before it goes inactive is making the PAN
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* parameters be WLAN-only.
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*/
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if (!ctx_pan->is_active)
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return 0;
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memset(&cmd, 0, sizeof(cmd));
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/* only 2 slots are currently allowed */
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cmd.num_slots = 2;
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cmd.slots[0].type = 0; /* BSS */
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cmd.slots[1].type = 1; /* PAN */
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if (priv->hw_roc_setup) {
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/* both contexts must be used for this to happen */
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slot1 = IWL_MIN_SLOT_TIME;
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slot0 = 3000;
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} else if (ctx_bss->vif && ctx_pan->vif) {
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int bcnint = ctx_pan->beacon_int;
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int dtim = ctx_pan->vif->bss_conf.dtim_period ?: 1;
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/* should be set, but seems unused?? */
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cmd.flags |= cpu_to_le16(IWL_WIPAN_PARAMS_FLG_SLOTTED_MODE);
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if (ctx_pan->vif->type == NL80211_IFTYPE_AP &&
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bcnint &&
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bcnint != ctx_bss->beacon_int) {
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IWL_ERR(priv,
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"beacon intervals don't match (%d, %d)\n",
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ctx_bss->beacon_int, ctx_pan->beacon_int);
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} else
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bcnint = max_t(int, bcnint,
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ctx_bss->beacon_int);
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if (!bcnint)
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bcnint = DEFAULT_BEACON_INTERVAL;
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slot0 = bcnint / 2;
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slot1 = bcnint - slot0;
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if (test_bit(STATUS_SCAN_HW, &priv->shrd->status) ||
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(!ctx_bss->vif->bss_conf.idle &&
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!ctx_bss->vif->bss_conf.assoc)) {
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slot0 = dtim * bcnint * 3 - IWL_MIN_SLOT_TIME;
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slot1 = IWL_MIN_SLOT_TIME;
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} else if (!ctx_pan->vif->bss_conf.idle &&
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!ctx_pan->vif->bss_conf.assoc) {
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slot1 = dtim * bcnint * 3 - IWL_MIN_SLOT_TIME;
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slot0 = IWL_MIN_SLOT_TIME;
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}
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} else if (ctx_pan->vif) {
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slot0 = 0;
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slot1 = max_t(int, 1, ctx_pan->vif->bss_conf.dtim_period) *
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ctx_pan->beacon_int;
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slot1 = max_t(int, DEFAULT_BEACON_INTERVAL, slot1);
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if (test_bit(STATUS_SCAN_HW, &priv->shrd->status)) {
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slot0 = slot1 * 3 - IWL_MIN_SLOT_TIME;
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slot1 = IWL_MIN_SLOT_TIME;
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}
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}
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cmd.slots[0].width = cpu_to_le16(slot0);
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cmd.slots[1].width = cpu_to_le16(slot1);
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ret = iwl_trans_send_cmd_pdu(trans(priv), REPLY_WIPAN_PARAMS, CMD_SYNC,
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sizeof(cmd), &cmd);
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if (ret)
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IWL_ERR(priv, "Error setting PAN parameters (%d)\n", ret);
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return ret;
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}
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/**
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* iwlagn_commit_rxon - commit staging_rxon to hardware
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*
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* The RXON command in staging_rxon is committed to the hardware and
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* the active_rxon structure is updated with the new data. This
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* function correctly transitions out of the RXON_ASSOC_MSK state if
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* a HW tune is required based on the RXON structure changes.
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*
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* The connect/disconnect flow should be as the following:
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*
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* 1. make sure send RXON command with association bit unset if not connect
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* this should include the channel and the band for the candidate
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* to be connected to
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* 2. Add Station before RXON association with the AP
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* 3. RXON_timing has to send before RXON for connection
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* 4. full RXON command - associated bit set
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* 5. use RXON_ASSOC command to update any flags changes
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*/
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int iwlagn_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
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{
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/* cast away the const for active_rxon in this function */
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struct iwl_rxon_cmd *active = (void *)&ctx->active;
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bool new_assoc = !!(ctx->staging.filter_flags & RXON_FILTER_ASSOC_MSK);
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int ret;
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lockdep_assert_held(&priv->shrd->mutex);
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if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
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return -EINVAL;
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if (!iwl_is_alive(priv->shrd))
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return -EBUSY;
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/* This function hardcodes a bunch of dual-mode assumptions */
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BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
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if (!ctx->is_active)
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return 0;
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/* override BSSID if necessary due to preauth */
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if (ctx->preauth_bssid)
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memcpy(ctx->staging.bssid_addr, ctx->bssid, ETH_ALEN);
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/* always get timestamp with Rx frame */
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ctx->staging.flags |= RXON_FLG_TSF2HOST_MSK;
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/*
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* force CTS-to-self frames protection if RTS-CTS is not preferred
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* one aggregation protection method
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*/
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if (!(cfg(priv)->ht_params &&
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cfg(priv)->ht_params->use_rts_for_aggregation))
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ctx->staging.flags |= RXON_FLG_SELF_CTS_EN;
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if ((ctx->vif && ctx->vif->bss_conf.use_short_slot) ||
|
|
!(ctx->staging.flags & RXON_FLG_BAND_24G_MSK))
|
|
ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK;
|
|
else
|
|
ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
|
|
|
|
iwl_print_rx_config_cmd(priv, ctx->ctxid);
|
|
ret = iwl_check_rxon_cmd(priv, ctx);
|
|
if (ret) {
|
|
IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/*
|
|
* receive commit_rxon request
|
|
* abort any previous channel switch if still in process
|
|
*/
|
|
if (test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status) &&
|
|
(priv->switch_channel != ctx->staging.channel)) {
|
|
IWL_DEBUG_11H(priv, "abort channel switch on %d\n",
|
|
le16_to_cpu(priv->switch_channel));
|
|
iwl_chswitch_done(priv, false);
|
|
}
|
|
|
|
/*
|
|
* If we don't need to send a full RXON, we can use
|
|
* iwl_rxon_assoc_cmd which is used to reconfigure filter
|
|
* and other flags for the current radio configuration.
|
|
*/
|
|
if (!iwl_full_rxon_required(priv, ctx)) {
|
|
ret = iwlagn_send_rxon_assoc(priv, ctx);
|
|
if (ret) {
|
|
IWL_ERR(priv, "Error setting RXON_ASSOC (%d)\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
memcpy(active, &ctx->staging, sizeof(*active));
|
|
/*
|
|
* We do not commit tx power settings while channel changing,
|
|
* do it now if after settings changed.
|
|
*/
|
|
iwl_set_tx_power(priv, priv->tx_power_next, false);
|
|
|
|
/* make sure we are in the right PS state */
|
|
iwl_power_update_mode(priv, true);
|
|
|
|
return 0;
|
|
}
|
|
|
|
iwl_set_rxon_hwcrypto(priv, ctx, !iwlagn_mod_params.sw_crypto);
|
|
|
|
IWL_DEBUG_INFO(priv,
|
|
"Going to commit RXON\n"
|
|
" * with%s RXON_FILTER_ASSOC_MSK\n"
|
|
" * channel = %d\n"
|
|
" * bssid = %pM\n",
|
|
(new_assoc ? "" : "out"),
|
|
le16_to_cpu(ctx->staging.channel),
|
|
ctx->staging.bssid_addr);
|
|
|
|
/*
|
|
* Always clear associated first, but with the correct config.
|
|
* This is required as for example station addition for the
|
|
* AP station must be done after the BSSID is set to correctly
|
|
* set up filters in the device.
|
|
*/
|
|
ret = iwlagn_rxon_disconn(priv, ctx);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = iwlagn_set_pan_params(priv);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (new_assoc)
|
|
return iwlagn_rxon_connect(priv, ctx);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void iwlagn_config_ht40(struct ieee80211_conf *conf,
|
|
struct iwl_rxon_context *ctx)
|
|
{
|
|
if (conf_is_ht40_minus(conf)) {
|
|
ctx->ht.extension_chan_offset =
|
|
IEEE80211_HT_PARAM_CHA_SEC_BELOW;
|
|
ctx->ht.is_40mhz = true;
|
|
} else if (conf_is_ht40_plus(conf)) {
|
|
ctx->ht.extension_chan_offset =
|
|
IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
|
|
ctx->ht.is_40mhz = true;
|
|
} else {
|
|
ctx->ht.extension_chan_offset =
|
|
IEEE80211_HT_PARAM_CHA_SEC_NONE;
|
|
ctx->ht.is_40mhz = false;
|
|
}
|
|
}
|
|
|
|
int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed)
|
|
{
|
|
struct iwl_priv *priv = hw->priv;
|
|
struct iwl_rxon_context *ctx;
|
|
struct ieee80211_conf *conf = &hw->conf;
|
|
struct ieee80211_channel *channel = conf->channel;
|
|
const struct iwl_channel_info *ch_info;
|
|
int ret = 0;
|
|
|
|
IWL_DEBUG_MAC80211(priv, "enter: changed %#x", changed);
|
|
|
|
mutex_lock(&priv->shrd->mutex);
|
|
|
|
if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
|
|
goto out;
|
|
|
|
if (unlikely(test_bit(STATUS_SCANNING, &priv->shrd->status))) {
|
|
IWL_DEBUG_MAC80211(priv, "leave - scanning\n");
|
|
goto out;
|
|
}
|
|
|
|
if (!iwl_is_ready(priv->shrd)) {
|
|
IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
|
|
goto out;
|
|
}
|
|
|
|
if (changed & (IEEE80211_CONF_CHANGE_SMPS |
|
|
IEEE80211_CONF_CHANGE_CHANNEL)) {
|
|
/* mac80211 uses static for non-HT which is what we want */
|
|
priv->current_ht_config.smps = conf->smps_mode;
|
|
|
|
/*
|
|
* Recalculate chain counts.
|
|
*
|
|
* If monitor mode is enabled then mac80211 will
|
|
* set up the SM PS mode to OFF if an HT channel is
|
|
* configured.
|
|
*/
|
|
for_each_context(priv, ctx)
|
|
iwlagn_set_rxon_chain(priv, ctx);
|
|
}
|
|
|
|
if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
|
|
unsigned long flags;
|
|
|
|
ch_info = iwl_get_channel_info(priv, channel->band,
|
|
channel->hw_value);
|
|
if (!is_channel_valid(ch_info)) {
|
|
IWL_DEBUG_MAC80211(priv, "leave - invalid channel\n");
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
spin_lock_irqsave(&priv->shrd->lock, flags);
|
|
|
|
for_each_context(priv, ctx) {
|
|
/* Configure HT40 channels */
|
|
if (ctx->ht.enabled != conf_is_ht(conf))
|
|
ctx->ht.enabled = conf_is_ht(conf);
|
|
|
|
if (ctx->ht.enabled) {
|
|
/* if HT40 is used, it should not change
|
|
* after associated except channel switch */
|
|
if (!ctx->ht.is_40mhz ||
|
|
!iwl_is_associated_ctx(ctx))
|
|
iwlagn_config_ht40(conf, ctx);
|
|
} else
|
|
ctx->ht.is_40mhz = false;
|
|
|
|
/*
|
|
* Default to no protection. Protection mode will
|
|
* later be set from BSS config in iwl_ht_conf
|
|
*/
|
|
ctx->ht.protection = IEEE80211_HT_OP_MODE_PROTECTION_NONE;
|
|
|
|
/* 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(ctx->staging.channel) !=
|
|
channel->hw_value)
|
|
ctx->staging.flags = 0;
|
|
|
|
iwl_set_rxon_channel(priv, channel, ctx);
|
|
iwl_set_rxon_ht(priv, &priv->current_ht_config);
|
|
|
|
iwl_set_flags_for_band(priv, ctx, channel->band,
|
|
ctx->vif);
|
|
}
|
|
|
|
spin_unlock_irqrestore(&priv->shrd->lock, flags);
|
|
|
|
iwl_update_bcast_stations(priv);
|
|
|
|
/*
|
|
* 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 |
|
|
IEEE80211_CONF_CHANGE_IDLE)) {
|
|
ret = iwl_power_update_mode(priv, false);
|
|
if (ret)
|
|
IWL_DEBUG_MAC80211(priv, "Error setting sleep 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);
|
|
}
|
|
|
|
for_each_context(priv, ctx) {
|
|
if (!memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging)))
|
|
continue;
|
|
iwlagn_commit_rxon(priv, ctx);
|
|
}
|
|
out:
|
|
mutex_unlock(&priv->shrd->mutex);
|
|
IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void iwlagn_check_needed_chains(struct iwl_priv *priv,
|
|
struct iwl_rxon_context *ctx,
|
|
struct ieee80211_bss_conf *bss_conf)
|
|
{
|
|
struct ieee80211_vif *vif = ctx->vif;
|
|
struct iwl_rxon_context *tmp;
|
|
struct ieee80211_sta *sta;
|
|
struct iwl_ht_config *ht_conf = &priv->current_ht_config;
|
|
struct ieee80211_sta_ht_cap *ht_cap;
|
|
bool need_multiple;
|
|
|
|
lockdep_assert_held(&priv->shrd->mutex);
|
|
|
|
switch (vif->type) {
|
|
case NL80211_IFTYPE_STATION:
|
|
rcu_read_lock();
|
|
sta = ieee80211_find_sta(vif, bss_conf->bssid);
|
|
if (!sta) {
|
|
/*
|
|
* If at all, this can only happen through a race
|
|
* when the AP disconnects us while we're still
|
|
* setting up the connection, in that case mac80211
|
|
* will soon tell us about that.
|
|
*/
|
|
need_multiple = false;
|
|
rcu_read_unlock();
|
|
break;
|
|
}
|
|
|
|
ht_cap = &sta->ht_cap;
|
|
|
|
need_multiple = true;
|
|
|
|
/*
|
|
* If the peer advertises no support for receiving 2 and 3
|
|
* stream MCS rates, it can't be transmitting them either.
|
|
*/
|
|
if (ht_cap->mcs.rx_mask[1] == 0 &&
|
|
ht_cap->mcs.rx_mask[2] == 0) {
|
|
need_multiple = false;
|
|
} else if (!(ht_cap->mcs.tx_params &
|
|
IEEE80211_HT_MCS_TX_DEFINED)) {
|
|
/* If it can't TX MCS at all ... */
|
|
need_multiple = false;
|
|
} else if (ht_cap->mcs.tx_params &
|
|
IEEE80211_HT_MCS_TX_RX_DIFF) {
|
|
int maxstreams;
|
|
|
|
/*
|
|
* But if it can receive them, it might still not
|
|
* be able to transmit them, which is what we need
|
|
* to check here -- so check the number of streams
|
|
* it advertises for TX (if different from RX).
|
|
*/
|
|
|
|
maxstreams = (ht_cap->mcs.tx_params &
|
|
IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK);
|
|
maxstreams >>=
|
|
IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT;
|
|
maxstreams += 1;
|
|
|
|
if (maxstreams <= 1)
|
|
need_multiple = false;
|
|
}
|
|
|
|
rcu_read_unlock();
|
|
break;
|
|
case NL80211_IFTYPE_ADHOC:
|
|
/* currently */
|
|
need_multiple = false;
|
|
break;
|
|
default:
|
|
/* only AP really */
|
|
need_multiple = true;
|
|
break;
|
|
}
|
|
|
|
ctx->ht_need_multiple_chains = need_multiple;
|
|
|
|
if (!need_multiple) {
|
|
/* check all contexts */
|
|
for_each_context(priv, tmp) {
|
|
if (!tmp->vif)
|
|
continue;
|
|
if (tmp->ht_need_multiple_chains) {
|
|
need_multiple = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
ht_conf->single_chain_sufficient = !need_multiple;
|
|
}
|
|
|
|
static void iwlagn_chain_noise_reset(struct iwl_priv *priv)
|
|
{
|
|
struct iwl_chain_noise_data *data = &priv->chain_noise_data;
|
|
int ret;
|
|
|
|
if ((data->state == IWL_CHAIN_NOISE_ALIVE) &&
|
|
iwl_is_any_associated(priv)) {
|
|
struct iwl_calib_chain_noise_reset_cmd cmd;
|
|
|
|
/* clear data for chain noise calibration algorithm */
|
|
data->chain_noise_a = 0;
|
|
data->chain_noise_b = 0;
|
|
data->chain_noise_c = 0;
|
|
data->chain_signal_a = 0;
|
|
data->chain_signal_b = 0;
|
|
data->chain_signal_c = 0;
|
|
data->beacon_count = 0;
|
|
|
|
memset(&cmd, 0, sizeof(cmd));
|
|
iwl_set_calib_hdr(&cmd.hdr,
|
|
priv->phy_calib_chain_noise_reset_cmd);
|
|
ret = iwl_trans_send_cmd_pdu(trans(priv),
|
|
REPLY_PHY_CALIBRATION_CMD,
|
|
CMD_SYNC, sizeof(cmd), &cmd);
|
|
if (ret)
|
|
IWL_ERR(priv,
|
|
"Could not send REPLY_PHY_CALIBRATION_CMD\n");
|
|
data->state = IWL_CHAIN_NOISE_ACCUMULATE;
|
|
IWL_DEBUG_CALIB(priv, "Run chain_noise_calibrate\n");
|
|
}
|
|
}
|
|
|
|
void iwlagn_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;
|
|
struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
|
|
int ret;
|
|
bool force = false;
|
|
|
|
mutex_lock(&priv->shrd->mutex);
|
|
|
|
if (unlikely(!iwl_is_ready(priv->shrd))) {
|
|
IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
|
|
mutex_unlock(&priv->shrd->mutex);
|
|
return;
|
|
}
|
|
|
|
if (unlikely(!ctx->vif)) {
|
|
IWL_DEBUG_MAC80211(priv, "leave - vif is NULL\n");
|
|
mutex_unlock(&priv->shrd->mutex);
|
|
return;
|
|
}
|
|
|
|
if (changes & BSS_CHANGED_BEACON_INT)
|
|
force = true;
|
|
|
|
if (changes & BSS_CHANGED_QOS) {
|
|
ctx->qos_data.qos_active = bss_conf->qos;
|
|
iwlagn_update_qos(priv, ctx);
|
|
}
|
|
|
|
ctx->staging.assoc_id = cpu_to_le16(vif->bss_conf.aid);
|
|
if (vif->bss_conf.use_short_preamble)
|
|
ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
|
|
else
|
|
ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
|
|
|
|
if (changes & BSS_CHANGED_ASSOC) {
|
|
if (bss_conf->assoc) {
|
|
priv->timestamp = bss_conf->timestamp;
|
|
ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
|
|
} else {
|
|
/*
|
|
* If we disassociate while there are pending
|
|
* frames, just wake up the queues and let the
|
|
* frames "escape" ... This shouldn't really
|
|
* be happening to start with, but we should
|
|
* not get stuck in this case either since it
|
|
* can happen if userspace gets confused.
|
|
*/
|
|
if (ctx->last_tx_rejected) {
|
|
ctx->last_tx_rejected = false;
|
|
iwl_trans_wake_any_queue(trans(priv),
|
|
ctx->ctxid,
|
|
"Disassoc: flush queue");
|
|
}
|
|
ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
|
|
|
|
if (ctx->ctxid == IWL_RXON_CTX_BSS)
|
|
priv->have_rekey_data = false;
|
|
}
|
|
|
|
iwlagn_bt_coex_rssi_monitor(priv);
|
|
}
|
|
|
|
if (ctx->ht.enabled) {
|
|
ctx->ht.protection = bss_conf->ht_operation_mode &
|
|
IEEE80211_HT_OP_MODE_PROTECTION;
|
|
ctx->ht.non_gf_sta_present = !!(bss_conf->ht_operation_mode &
|
|
IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
|
|
iwlagn_check_needed_chains(priv, ctx, bss_conf);
|
|
iwl_set_rxon_ht(priv, &priv->current_ht_config);
|
|
}
|
|
|
|
iwlagn_set_rxon_chain(priv, ctx);
|
|
|
|
if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ))
|
|
ctx->staging.flags |= RXON_FLG_TGG_PROTECT_MSK;
|
|
else
|
|
ctx->staging.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
|
|
|
|
if (bss_conf->use_cts_prot)
|
|
ctx->staging.flags |= RXON_FLG_SELF_CTS_EN;
|
|
else
|
|
ctx->staging.flags &= ~RXON_FLG_SELF_CTS_EN;
|
|
|
|
memcpy(ctx->staging.bssid_addr, bss_conf->bssid, ETH_ALEN);
|
|
|
|
if (vif->type == NL80211_IFTYPE_AP ||
|
|
vif->type == NL80211_IFTYPE_ADHOC) {
|
|
if (vif->bss_conf.enable_beacon) {
|
|
ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
|
|
priv->beacon_ctx = ctx;
|
|
} else {
|
|
ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
|
|
priv->beacon_ctx = NULL;
|
|
}
|
|
}
|
|
|
|
if (force || memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging)))
|
|
iwlagn_commit_rxon(priv, ctx);
|
|
|
|
if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) {
|
|
/*
|
|
* The chain noise calibration will enable PM upon
|
|
* completion. If calibration has already been run
|
|
* then we need to enable power management here.
|
|
*/
|
|
if (priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE)
|
|
iwl_power_update_mode(priv, false);
|
|
|
|
/* Enable RX differential gain and sensitivity calibrations */
|
|
if (!priv->disable_chain_noise_cal)
|
|
iwlagn_chain_noise_reset(priv);
|
|
priv->start_calib = 1;
|
|
WARN_ON(ctx->preauth_bssid);
|
|
}
|
|
|
|
if (changes & BSS_CHANGED_IBSS) {
|
|
ret = iwlagn_manage_ibss_station(priv, vif,
|
|
bss_conf->ibss_joined);
|
|
if (ret)
|
|
IWL_ERR(priv, "failed to %s IBSS station %pM\n",
|
|
bss_conf->ibss_joined ? "add" : "remove",
|
|
bss_conf->bssid);
|
|
}
|
|
|
|
if (changes & BSS_CHANGED_BEACON && vif->type == NL80211_IFTYPE_ADHOC &&
|
|
priv->beacon_ctx) {
|
|
if (iwlagn_update_beacon(priv, vif))
|
|
IWL_ERR(priv, "Error sending IBSS beacon\n");
|
|
}
|
|
|
|
mutex_unlock(&priv->shrd->mutex);
|
|
}
|
|
|
|
void iwlagn_post_scan(struct iwl_priv *priv)
|
|
{
|
|
struct iwl_rxon_context *ctx;
|
|
|
|
/*
|
|
* We do not commit power settings while scan is pending,
|
|
* do it now if the settings changed.
|
|
*/
|
|
iwl_power_set_mode(priv, &priv->power_data.sleep_cmd_next, false);
|
|
iwl_set_tx_power(priv, priv->tx_power_next, false);
|
|
|
|
/*
|
|
* Since setting the RXON may have been deferred while
|
|
* performing the scan, fire one off if needed
|
|
*/
|
|
for_each_context(priv, ctx)
|
|
if (memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging)))
|
|
iwlagn_commit_rxon(priv, ctx);
|
|
|
|
iwlagn_set_pan_params(priv);
|
|
}
|