return 0;
}
+static int iwlagn_mac_conf_tx(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif, u16 queue,
+ const struct ieee80211_tx_queue_params *params)
+{
+ struct iwl_priv *priv = hw->priv;
+ struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
+ struct iwl_rxon_context *ctx = vif_priv->ctx;
+ unsigned long flags;
+ int q;
+
+ if (WARN_ON(!ctx))
+ return -EINVAL;
+
+ IWL_DEBUG_MAC80211(priv, "enter\n");
+
+ if (!iwl_is_ready_rf(priv->shrd)) {
+ 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->shrd->lock, flags);
+
+ ctx->qos_data.def_qos_parm.ac[q].cw_min =
+ cpu_to_le16(params->cw_min);
+ ctx->qos_data.def_qos_parm.ac[q].cw_max =
+ cpu_to_le16(params->cw_max);
+ ctx->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
+ ctx->qos_data.def_qos_parm.ac[q].edca_txop =
+ cpu_to_le16((params->txop * 32));
+
+ ctx->qos_data.def_qos_parm.ac[q].reserved1 = 0;
+
+ spin_unlock_irqrestore(&priv->shrd->lock, flags);
+
+ IWL_DEBUG_MAC80211(priv, "leave\n");
+ return 0;
+}
+
+static int iwlagn_mac_tx_last_beacon(struct ieee80211_hw *hw)
+{
+ struct iwl_priv *priv = hw->priv;
+
+ return priv->ibss_manager == IWL_IBSS_MANAGER;
+}
+
+static int iwl_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
+{
+ iwl_connection_init_rx_config(priv, ctx);
+
+ iwlagn_set_rxon_chain(priv, ctx);
+
+ return iwlagn_commit_rxon(priv, ctx);
+}
+
+static int iwl_setup_interface(struct iwl_priv *priv,
+ struct iwl_rxon_context *ctx)
+{
+ struct ieee80211_vif *vif = ctx->vif;
+ int err;
+
+ lockdep_assert_held(&priv->shrd->mutex);
+
+ /*
+ * This variable will be correct only when there's just
+ * a single context, but all code using it is for hardware
+ * that supports only one context.
+ */
+ priv->iw_mode = vif->type;
+
+ ctx->is_active = true;
+
+ err = iwl_set_mode(priv, ctx);
+ if (err) {
+ if (!ctx->always_active)
+ ctx->is_active = false;
+ return err;
+ }
+
+ if (priv->cfg->bt_params && priv->cfg->bt_params->advanced_bt_coexist &&
+ vif->type == NL80211_IFTYPE_ADHOC) {
+ /*
+ * pretend to have high BT traffic as long as we
+ * are operating in IBSS mode, as this will cause
+ * the rate scaling etc. to behave as intended.
+ */
+ priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_HIGH;
+ }
+
+ return 0;
+}
+
+static int iwlagn_mac_add_interface(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct iwl_priv *priv = hw->priv;
+ struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
+ struct iwl_rxon_context *tmp, *ctx = NULL;
+ int err;
+ enum nl80211_iftype viftype = ieee80211_vif_type_p2p(vif);
+
+ IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n",
+ viftype, vif->addr);
+
+ cancel_delayed_work_sync(&priv->hw_roc_disable_work);
+
+ mutex_lock(&priv->shrd->mutex);
+
+ iwlagn_disable_roc(priv);
+
+ if (!iwl_is_ready_rf(priv->shrd)) {
+ IWL_WARN(priv, "Try to add interface when device not ready\n");
+ err = -EINVAL;
+ goto out;
+ }
+
+ for_each_context(priv, tmp) {
+ u32 possible_modes =
+ tmp->interface_modes | tmp->exclusive_interface_modes;
+
+ if (tmp->vif) {
+ /* check if this busy context is exclusive */
+ if (tmp->exclusive_interface_modes &
+ BIT(tmp->vif->type)) {
+ err = -EINVAL;
+ goto out;
+ }
+ continue;
+ }
+
+ if (!(possible_modes & BIT(viftype)))
+ continue;
+
+ /* have maybe usable context w/o interface */
+ ctx = tmp;
+ break;
+ }
+
+ if (!ctx) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ vif_priv->ctx = ctx;
+ ctx->vif = vif;
+
+ err = iwl_setup_interface(priv, ctx);
+ if (!err)
+ goto out;
+
+ ctx->vif = NULL;
+ priv->iw_mode = NL80211_IFTYPE_STATION;
+ out:
+ mutex_unlock(&priv->shrd->mutex);
+
+ IWL_DEBUG_MAC80211(priv, "leave\n");
+ return err;
+}
+
+static void iwl_teardown_interface(struct iwl_priv *priv,
+ struct ieee80211_vif *vif,
+ bool mode_change)
+{
+ struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
+
+ lockdep_assert_held(&priv->shrd->mutex);
+
+ if (priv->scan_vif == vif) {
+ iwl_scan_cancel_timeout(priv, 200);
+ iwl_force_scan_end(priv);
+ }
+
+ if (!mode_change) {
+ iwl_set_mode(priv, ctx);
+ if (!ctx->always_active)
+ ctx->is_active = false;
+ }
+
+ /*
+ * When removing the IBSS interface, overwrite the
+ * BT traffic load with the stored one from the last
+ * notification, if any. If this is a device that
+ * doesn't implement this, this has no effect since
+ * both values are the same and zero.
+ */
+ if (vif->type == NL80211_IFTYPE_ADHOC)
+ priv->bt_traffic_load = priv->last_bt_traffic_load;
+}
+
+static void iwlagn_mac_remove_interface(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct iwl_priv *priv = hw->priv;
+ struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
+
+ IWL_DEBUG_MAC80211(priv, "enter\n");
+
+ mutex_lock(&priv->shrd->mutex);
+
+ if (WARN_ON(ctx->vif != vif)) {
+ struct iwl_rxon_context *tmp;
+ IWL_ERR(priv, "ctx->vif = %p, vif = %p\n", ctx->vif, vif);
+ for_each_context(priv, tmp)
+ IWL_ERR(priv, "\tID = %d:\tctx = %p\tctx->vif = %p\n",
+ tmp->ctxid, tmp, tmp->vif);
+ }
+ ctx->vif = NULL;
+
+ iwl_teardown_interface(priv, vif, false);
+
+ mutex_unlock(&priv->shrd->mutex);
+
+ IWL_DEBUG_MAC80211(priv, "leave\n");
+
+}
+
+static int iwlagn_mac_change_interface(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ enum nl80211_iftype newtype, bool newp2p)
+{
+ struct iwl_priv *priv = hw->priv;
+ struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
+ struct iwl_rxon_context *bss_ctx = &priv->contexts[IWL_RXON_CTX_BSS];
+ struct iwl_rxon_context *tmp;
+ enum nl80211_iftype newviftype = newtype;
+ u32 interface_modes;
+ int err;
+
+ IWL_DEBUG_MAC80211(priv, "enter\n");
+
+ newtype = ieee80211_iftype_p2p(newtype, newp2p);
+
+ mutex_lock(&priv->shrd->mutex);
+
+ if (!ctx->vif || !iwl_is_ready_rf(priv->shrd)) {
+ /*
+ * Huh? But wait ... this can maybe happen when
+ * we're in the middle of a firmware restart!
+ */
+ err = -EBUSY;
+ goto out;
+ }
+
+ interface_modes = ctx->interface_modes | ctx->exclusive_interface_modes;
+
+ if (!(interface_modes & BIT(newtype))) {
+ err = -EBUSY;
+ goto out;
+ }
+
+ /*
+ * Refuse a change that should be done by moving from the PAN
+ * context to the BSS context instead, if the BSS context is
+ * available and can support the new interface type.
+ */
+ if (ctx->ctxid == IWL_RXON_CTX_PAN && !bss_ctx->vif &&
+ (bss_ctx->interface_modes & BIT(newtype) ||
+ bss_ctx->exclusive_interface_modes & BIT(newtype))) {
+ BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
+ err = -EBUSY;
+ goto out;
+ }
+
+ if (ctx->exclusive_interface_modes & BIT(newtype)) {
+ for_each_context(priv, tmp) {
+ if (ctx == tmp)
+ continue;
+
+ if (!tmp->vif)
+ continue;
+
+ /*
+ * The current mode switch would be exclusive, but
+ * another context is active ... refuse the switch.
+ */
+ err = -EBUSY;
+ goto out;
+ }
+ }
+
+ /* success */
+ iwl_teardown_interface(priv, vif, true);
+ vif->type = newviftype;
+ vif->p2p = newp2p;
+ err = iwl_setup_interface(priv, ctx);
+ WARN_ON(err);
+ /*
+ * We've switched internally, but submitting to the
+ * device may have failed for some reason. Mask this
+ * error, because otherwise mac80211 will not switch
+ * (and set the interface type back) and we'll be
+ * out of sync with it.
+ */
+ err = 0;
+
+ out:
+ mutex_unlock(&priv->shrd->mutex);
+ IWL_DEBUG_MAC80211(priv, "leave\n");
+
+ return err;
+}
+
struct ieee80211_ops iwlagn_hw_ops = {
.tx = iwlagn_mac_tx,
.start = iwlagn_mac_start,
projects / firefly-linux-kernel-4.4.55.git / blobdiff