Merge branches 'x86-urgent-for-linus' and 'irq-urgent-for-linus' of git://git.kernel...
[pandora-kernel.git] / drivers / net / wireless / iwlwifi / iwl-core.c
index 885167f..213c80c 100644 (file)
@@ -41,6 +41,7 @@
 #include "iwl-power.h"
 #include "iwl-sta.h"
 #include "iwl-helpers.h"
+#include "iwl-agn.h"
 
 
 /*
@@ -94,7 +95,7 @@ static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv,
                max_bit_rate = MAX_BIT_RATE_40_MHZ;
        }
 
-       if (priv->cfg->mod_params->amsdu_size_8K)
+       if (iwlagn_mod_params.amsdu_size_8K)
                ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU;
 
        ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF;
@@ -135,6 +136,7 @@ int iwlcore_init_geos(struct iwl_priv *priv)
        struct ieee80211_channel *geo_ch;
        struct ieee80211_rate *rates;
        int i = 0;
+       s8 max_tx_power = IWLAGN_TX_POWER_TARGET_POWER_MIN;
 
        if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates ||
            priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) {
@@ -208,8 +210,8 @@ int iwlcore_init_geos(struct iwl_priv *priv)
 
                        geo_ch->flags |= ch->ht40_extension_channel;
 
-                       if (ch->max_power_avg > priv->tx_power_device_lmt)
-                               priv->tx_power_device_lmt = ch->max_power_avg;
+                       if (ch->max_power_avg > max_tx_power)
+                               max_tx_power = ch->max_power_avg;
                } else {
                        geo_ch->flags |= IEEE80211_CHAN_DISABLED;
                }
@@ -222,6 +224,10 @@ int iwlcore_init_geos(struct iwl_priv *priv)
                                 geo_ch->flags);
        }
 
+       priv->tx_power_device_lmt = max_tx_power;
+       priv->tx_power_user_lmt = max_tx_power;
+       priv->tx_power_next = max_tx_power;
+
        if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) &&
             priv->cfg->sku & IWL_SKU_A) {
                IWL_INFO(priv, "Incorrectly detected BG card as ABG. "
@@ -410,72 +416,72 @@ void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 int iwl_check_rxon_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
 {
        struct iwl_rxon_cmd *rxon = &ctx->staging;
-       bool error = false;
+       u32 errors = 0;
 
        if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
                if (rxon->flags & RXON_FLG_TGJ_NARROW_BAND_MSK) {
                        IWL_WARN(priv, "check 2.4G: wrong narrow\n");
-                       error = true;
+                       errors |= BIT(0);
                }
                if (rxon->flags & RXON_FLG_RADAR_DETECT_MSK) {
                        IWL_WARN(priv, "check 2.4G: wrong radar\n");
-                       error = true;
+                       errors |= BIT(1);
                }
        } else {
                if (!(rxon->flags & RXON_FLG_SHORT_SLOT_MSK)) {
                        IWL_WARN(priv, "check 5.2G: not short slot!\n");
-                       error = true;
+                       errors |= BIT(2);
                }
                if (rxon->flags & RXON_FLG_CCK_MSK) {
                        IWL_WARN(priv, "check 5.2G: CCK!\n");
-                       error = true;
+                       errors |= BIT(3);
                }
        }
        if ((rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1) {
                IWL_WARN(priv, "mac/bssid mcast!\n");
-               error = true;
+               errors |= BIT(4);
        }
 
        /* make sure basic rates 6Mbps and 1Mbps are supported */
        if ((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0 &&
            (rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0) {
                IWL_WARN(priv, "neither 1 nor 6 are basic\n");
-               error = true;
+               errors |= BIT(5);
        }
 
        if (le16_to_cpu(rxon->assoc_id) > 2007) {
                IWL_WARN(priv, "aid > 2007\n");
-               error = true;
+               errors |= BIT(6);
        }
 
        if ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK))
                        == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) {
                IWL_WARN(priv, "CCK and short slot\n");
-               error = true;
+               errors |= BIT(7);
        }
 
        if ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK))
                        == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) {
                IWL_WARN(priv, "CCK and auto detect");
-               error = true;
+               errors |= BIT(8);
        }
 
        if ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK |
                            RXON_FLG_TGG_PROTECT_MSK)) ==
                            RXON_FLG_TGG_PROTECT_MSK) {
                IWL_WARN(priv, "TGg but no auto-detect\n");
-               error = true;
+               errors |= BIT(9);
        }
 
-       if (error)
-               IWL_WARN(priv, "Tuning to channel %d\n",
-                           le16_to_cpu(rxon->channel));
-
-       if (error) {
-               IWL_ERR(priv, "Invalid RXON\n");
-               return -EINVAL;
+       if (rxon->channel == 0) {
+               IWL_WARN(priv, "zero channel is invalid\n");
+               errors |= BIT(10);
        }
-       return 0;
+
+       WARN(errors, "Invalid RXON (%#x), channel %d",
+            errors, le16_to_cpu(rxon->channel));
+
+       return errors ? -EINVAL : 0;
 }
 
 /**
@@ -837,12 +843,8 @@ void iwl_chswitch_done(struct iwl_priv *priv, bool is_success)
        if (test_bit(STATUS_EXIT_PENDING, &priv->status))
                return;
 
-       if (priv->switch_rxon.switch_in_progress) {
+       if (test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status))
                ieee80211_chswitch_done(ctx->vif, is_success);
-               mutex_lock(&priv->mutex);
-               priv->switch_rxon.switch_in_progress = false;
-               mutex_unlock(&priv->mutex);
-       }
 }
 
 #ifdef CONFIG_IWLWIFI_DEBUG
@@ -867,6 +869,19 @@ void iwl_print_rx_config_cmd(struct iwl_priv *priv,
 }
 #endif
 
+static void iwlagn_abort_notification_waits(struct iwl_priv *priv)
+{
+       unsigned long flags;
+       struct iwl_notification_wait *wait_entry;
+
+       spin_lock_irqsave(&priv->_agn.notif_wait_lock, flags);
+       list_for_each_entry(wait_entry, &priv->_agn.notif_waits, list)
+               wait_entry->aborted = true;
+       spin_unlock_irqrestore(&priv->_agn.notif_wait_lock, flags);
+
+       wake_up_all(&priv->_agn.notif_waitq);
+}
+
 void iwlagn_fw_error(struct iwl_priv *priv, bool ondemand)
 {
        unsigned int reload_msec;
@@ -878,6 +893,8 @@ void iwlagn_fw_error(struct iwl_priv *priv, bool ondemand)
        /* Cancel currently queued command. */
        clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
 
+       iwlagn_abort_notification_waits(priv);
+
        /* Keep the restart process from trying to send host
         * commands by clearing the ready bit */
        clear_bit(STATUS_READY, &priv->status);
@@ -906,7 +923,7 @@ void iwlagn_fw_error(struct iwl_priv *priv, bool ondemand)
        }
 
        if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
-               if (priv->cfg->mod_params->restart_fw) {
+               if (iwlagn_mod_params.restart_fw) {
                        IWL_DEBUG(priv, IWL_DL_FW_ERRORS,
                                  "Restarting adapter due to uCode error.\n");
                        queue_work(priv->workqueue, &priv->restart);
@@ -975,6 +992,8 @@ void iwl_apm_stop(struct iwl_priv *priv)
 {
        IWL_DEBUG_INFO(priv, "Stop card, put in low power state\n");
 
+       clear_bit(STATUS_DEVICE_ENABLED, &priv->status);
+
        /* Stop device's DMA activity */
        iwl_apm_stop_master(priv);
 
@@ -1089,6 +1108,8 @@ int iwl_apm_init(struct iwl_priv *priv)
        iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
                          APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
 
+       set_bit(STATUS_DEVICE_ENABLED, &priv->status);
+
 out:
        return ret;
 }
@@ -1723,7 +1744,7 @@ int iwl_force_reset(struct iwl_priv *priv, int mode, bool external)
                 * detect failure), then fw_restart module parameter
                 * need to be check before performing firmware reload
                 */
-               if (!external && !priv->cfg->mod_params->restart_fw) {
+               if (!external && !iwlagn_mod_params.restart_fw) {
                        IWL_DEBUG_INFO(priv, "Cancel firmware reload based on "
                                       "module parameter setting\n");
                        break;
@@ -1740,6 +1761,7 @@ int iwl_mac_change_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);
+       struct iwl_rxon_context *bss_ctx = &priv->contexts[IWL_RXON_CTX_BSS];
        struct iwl_rxon_context *tmp;
        u32 interface_modes;
        int err;
@@ -1764,6 +1786,19 @@ int iwl_mac_change_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
                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)