]> err.no Git - linux-2.6/blobdiff - drivers/net/wireless/iwlwifi/iwl4965-base.c
iwlwifi: earlier rx allocation
[linux-2.6] / drivers / net / wireless / iwlwifi / iwl4965-base.c
index 92bb7e13a1f062ae71649c146706cac8ec9e2acb..14a11bd83e8262ac161a06ae861cae151708bb11 100644 (file)
@@ -90,7 +90,7 @@ int iwl4965_param_amsdu_size_8K;   /* def: enable 8K amsdu size */
 #define VS
 #endif
 
-#define IWLWIFI_VERSION "1.2.22k" VD VS
+#define IWLWIFI_VERSION "1.2.23k" VD VS
 #define DRV_COPYRIGHT  "Copyright(c) 2003-2007 Intel Corporation"
 #define DRV_VERSION     IWLWIFI_VERSION
 
@@ -692,6 +692,11 @@ static int iwl4965_enqueue_hcmd(struct iwl4965_priv *priv, struct iwl4965_host_c
        BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) &&
               !(cmd->meta.flags & CMD_SIZE_HUGE));
 
+       if (iwl4965_is_rfkill(priv)) {
+               IWL_DEBUG_INFO("Not sending command - RF KILL");
+               return -EIO;
+       }
+
        if (iwl4965_queue_space(q) < ((cmd->meta.flags & CMD_ASYNC) ? 2 : 1)) {
                IWL_ERROR("No space for Tx\n");
                return -ENOSPC;
@@ -1639,6 +1644,12 @@ static void get_eeprom_mac(struct iwl4965_priv *priv, u8 *mac)
        memcpy(mac, priv->eeprom.mac_address, 6);
 }
 
+static inline void iwl4965_eeprom_release_semaphore(struct iwl4965_priv *priv)
+{
+       iwl4965_clear_bit(priv, CSR_HW_IF_CONFIG_REG,
+               CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM);
+}
+
 /**
  * iwl4965_eeprom_init - read EEPROM contents
  *
@@ -2772,6 +2783,10 @@ static void iwl4965_build_tx_cmd_basic(struct iwl4965_priv *priv,
                tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
        }
 
+       if (ieee80211_is_back_request(fc))
+               tx_flags |= TX_CMD_FLG_ACK_MSK | TX_CMD_FLG_IMM_BA_RSP_MASK;
+
+
        cmd->cmd.tx.sta_id = std_id;
        if (ieee80211_get_morefrag(hdr))
                tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK;
@@ -2880,6 +2895,7 @@ static int iwl4965_tx_skb(struct iwl4965_priv *priv,
        struct iwl4965_queue *q = NULL;
        dma_addr_t phys_addr;
        dma_addr_t txcmd_phys;
+       dma_addr_t scratch_phys;
        struct iwl4965_cmd *out_cmd = NULL;
        u16 len, idx, len_org;
        u8 id, hdr_len, unicast;
@@ -2922,8 +2938,10 @@ static int iwl4965_tx_skb(struct iwl4965_priv *priv,
 #endif
 
        /* drop all data frame if we are not associated */
-       if (!iwl4965_is_associated(priv) && !priv->assoc_id &&
-           ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)) {
+       if (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) &&
+          (!iwl4965_is_associated(priv) ||
+           !priv->assoc_id ||
+           !priv->assoc_station_added)) {
                IWL_DEBUG_DROP("Dropping - !iwl4965_is_associated\n");
                goto drop_unlock;
        }
@@ -3053,8 +3071,18 @@ static int iwl4965_tx_skb(struct iwl4965_priv *priv,
        /* set is_hcca to 0; it probably will never be implemented */
        iwl4965_hw_build_tx_cmd_rate(priv, out_cmd, ctl, hdr, sta_id, 0);
 
-       iwl4965_tx_cmd(priv, out_cmd, sta_id, txcmd_phys,
-                      hdr, hdr_len, ctl, NULL);
+       scratch_phys = txcmd_phys + sizeof(struct iwl4965_cmd_header) +
+               offsetof(struct iwl4965_tx_cmd, scratch);
+       out_cmd->cmd.tx.dram_lsb_ptr = cpu_to_le32(scratch_phys);
+       out_cmd->cmd.tx.dram_msb_ptr = iwl_get_dma_hi_address(scratch_phys);
+
+#ifdef CONFIG_IWL4965_HT_AGG
+#ifdef CONFIG_IWL4965_HT
+       /* TODO: move this functionality to rate scaling */
+       iwl4965_tl_get_stats(priv, hdr);
+#endif /* CONFIG_IWL4965_HT_AGG */
+#endif /*CONFIG_IWL4965_HT */
+
 
        if (!ieee80211_get_morefrag(hdr)) {
                txq->need_update = 1;
@@ -4641,7 +4669,7 @@ static void iwl4965_rx_handle(struct iwl4965_priv *priv)
        int reclaim;
        unsigned long flags;
        u8 fill_rx = 0;
-       u32 count = 0;
+       u32 count = 8;
 
        /* uCode's read index (stored in shared DRAM) indicates the last Rx
         * buffer that the driver may process (last buffer filled by ucode). */
@@ -5116,8 +5144,9 @@ static void iwl4965_irq_tasklet(struct iwl4965_priv *priv)
 #ifdef CONFIG_IWL4965_DEBUG
        if (iwl4965_debug_level & (IWL_DL_ISR)) {
                /* NIC fires this, but we don't use it, redundant with WAKEUP */
-               if (inta & CSR_INT_BIT_MAC_CLK_ACTV)
-                       IWL_DEBUG_ISR("Microcode started or stopped.\n");
+               if (inta & CSR_INT_BIT_SCD)
+                       IWL_DEBUG_ISR("Scheduler finished to transmit "
+                                     "the frame/frames.\n");
 
                /* Alive notification via Rx interrupt will do the real work */
                if (inta & CSR_INT_BIT_ALIVE)
@@ -5125,7 +5154,7 @@ static void iwl4965_irq_tasklet(struct iwl4965_priv *priv)
        }
 #endif
        /* Safely ignore these bits for debug checks below */
-       inta &= ~(CSR_INT_BIT_MAC_CLK_ACTV | CSR_INT_BIT_ALIVE);
+       inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
 
        /* HW RF KILL switch toggled */
        if (inta & CSR_INT_BIT_RF_KILL) {
@@ -5254,8 +5283,11 @@ static irqreturn_t iwl4965_isr(int irq, void *data)
        IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
                      inta, inta_mask, inta_fh);
 
+       inta &= ~CSR_INT_BIT_SCD;
+
        /* iwl4965_irq_tasklet() will service interrupts and re-enable them */
-       tasklet_schedule(&priv->irq_tasklet);
+       if (likely(inta || inta_fh))
+               tasklet_schedule(&priv->irq_tasklet);
 
  unplugged:
        spin_unlock(&priv->lock);
@@ -5561,6 +5593,15 @@ static int iwl4965_init_channel_map(struct iwl4965_priv *priv)
        return 0;
 }
 
+/*
+ * iwl4965_free_channel_map - undo allocations in iwl4965_init_channel_map
+ */
+static void iwl4965_free_channel_map(struct iwl4965_priv *priv)
+{
+       kfree(priv->channel_info);
+       priv->channel_count = 0;
+}
+
 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
  * sending probe req.  This should be set long enough to hear probe responses
  * from more than one AP.  */
@@ -5683,7 +5724,7 @@ static int iwl4965_get_channels_for_scan(struct iwl4965_priv *priv, int phymode,
                        scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3));
                        /* NOTE: if we were doing 6Mb OFDM for scans we'd use
                         * power level:
-                        * scan_ch->tpc.tx_gain = ((1<<5) | (2 << 3)) | 3;
+                        * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
                         */
                }
 
@@ -5894,6 +5935,17 @@ static int iwl4965_init_geos(struct iwl4965_priv *priv)
        return 0;
 }
 
+/*
+ * iwl4965_free_geos - undo allocations in iwl4965_init_geos
+ */
+static void iwl4965_free_geos(struct iwl4965_priv *priv)
+{
+       kfree(priv->modes);
+       kfree(priv->ieee_channels);
+       kfree(priv->ieee_rates);
+       clear_bit(STATUS_GEO_CONFIGURED, &priv->status);
+}
+
 /******************************************************************************
  *
  * uCode download functions
@@ -5902,48 +5954,12 @@ static int iwl4965_init_geos(struct iwl4965_priv *priv)
 
 static void iwl4965_dealloc_ucode_pci(struct iwl4965_priv *priv)
 {
-       if (priv->ucode_code.v_addr != NULL) {
-               pci_free_consistent(priv->pci_dev,
-                                   priv->ucode_code.len,
-                                   priv->ucode_code.v_addr,
-                                   priv->ucode_code.p_addr);
-               priv->ucode_code.v_addr = NULL;
-       }
-       if (priv->ucode_data.v_addr != NULL) {
-               pci_free_consistent(priv->pci_dev,
-                                   priv->ucode_data.len,
-                                   priv->ucode_data.v_addr,
-                                   priv->ucode_data.p_addr);
-               priv->ucode_data.v_addr = NULL;
-       }
-       if (priv->ucode_data_backup.v_addr != NULL) {
-               pci_free_consistent(priv->pci_dev,
-                                   priv->ucode_data_backup.len,
-                                   priv->ucode_data_backup.v_addr,
-                                   priv->ucode_data_backup.p_addr);
-               priv->ucode_data_backup.v_addr = NULL;
-       }
-       if (priv->ucode_init.v_addr != NULL) {
-               pci_free_consistent(priv->pci_dev,
-                                   priv->ucode_init.len,
-                                   priv->ucode_init.v_addr,
-                                   priv->ucode_init.p_addr);
-               priv->ucode_init.v_addr = NULL;
-       }
-       if (priv->ucode_init_data.v_addr != NULL) {
-               pci_free_consistent(priv->pci_dev,
-                                   priv->ucode_init_data.len,
-                                   priv->ucode_init_data.v_addr,
-                                   priv->ucode_init_data.p_addr);
-               priv->ucode_init_data.v_addr = NULL;
-       }
-       if (priv->ucode_boot.v_addr != NULL) {
-               pci_free_consistent(priv->pci_dev,
-                                   priv->ucode_boot.len,
-                                   priv->ucode_boot.v_addr,
-                                   priv->ucode_boot.p_addr);
-               priv->ucode_boot.v_addr = NULL;
-       }
+       iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code);
+       iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data);
+       iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
+       iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init);
+       iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data);
+       iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot);
 }
 
 /**
@@ -6242,11 +6258,6 @@ static void iwl4965_nic_start(struct iwl4965_priv *priv)
        iwl4965_write32(priv, CSR_RESET, 0);
 }
 
-static int iwl4965_alloc_fw_desc(struct pci_dev *pci_dev, struct fw_desc *desc)
-{
-       desc->v_addr = pci_alloc_consistent(pci_dev, desc->len, &desc->p_addr);
-       return (desc->v_addr != NULL) ? 0 : -ENOMEM;
-}
 
 /**
  * iwl4965_read_ucode - Read uCode images from disk file.
@@ -6357,21 +6368,21 @@ static int iwl4965_read_ucode(struct iwl4965_priv *priv)
         * 1) unmodified from disk
         * 2) backup cache for save/restore during power-downs */
        priv->ucode_code.len = inst_size;
-       iwl4965_alloc_fw_desc(priv->pci_dev, &priv->ucode_code);
+       iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code);
 
        priv->ucode_data.len = data_size;
-       iwl4965_alloc_fw_desc(priv->pci_dev, &priv->ucode_data);
+       iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data);
 
        priv->ucode_data_backup.len = data_size;
-       iwl4965_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
+       iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
 
        /* Initialization instructions and data */
        if (init_size && init_data_size) {
                priv->ucode_init.len = init_size;
-               iwl4965_alloc_fw_desc(priv->pci_dev, &priv->ucode_init);
+               iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init);
 
                priv->ucode_init_data.len = init_data_size;
-               iwl4965_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data);
+               iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data);
 
                if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr)
                        goto err_pci_alloc;
@@ -6380,7 +6391,7 @@ static int iwl4965_read_ucode(struct iwl4965_priv *priv)
        /* Bootstrap (instructions only, no data) */
        if (boot_size) {
                priv->ucode_boot.len = boot_size;
-               iwl4965_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot);
+               iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot);
 
                if (!priv->ucode_boot.v_addr)
                        goto err_pci_alloc;
@@ -6586,38 +6597,10 @@ static void iwl4965_alive_start(struct iwl4965_priv *priv)
        /* Clear out the uCode error bit if it is set */
        clear_bit(STATUS_FW_ERROR, &priv->status);
 
-       rc = iwl4965_init_channel_map(priv);
-       if (rc) {
-               IWL_ERROR("initializing regulatory failed: %d\n", rc);
-               return;
-       }
-
-       iwl4965_init_geos(priv);
-
        if (iwl4965_is_rfkill(priv))
                return;
 
-       if (!priv->mac80211_registered) {
-               /* Unlock so any user space entry points can call back into
-                * the driver without a deadlock... */
-               mutex_unlock(&priv->mutex);
-               iwl4965_rate_control_register(priv->hw);
-               rc = ieee80211_register_hw(priv->hw);
-               priv->hw->conf.beacon_int = 100;
-               mutex_lock(&priv->mutex);
-
-               if (rc) {
-                       iwl4965_rate_control_unregister(priv->hw);
-                       IWL_ERROR("Failed to register network "
-                                 "device (error %d)\n", rc);
-                       return;
-               }
-
-               priv->mac80211_registered = 1;
-
-               iwl4965_reset_channel_flag(priv);
-       } else
-               ieee80211_start_queues(priv->hw);
+       ieee80211_start_queues(priv->hw);
 
        priv->active_rate = priv->rates_mask;
        priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
@@ -6648,7 +6631,9 @@ static void iwl4965_alive_start(struct iwl4965_priv *priv)
        set_bit(STATUS_READY, &priv->status);
 
        iwl4965_rf_kill_ct_config(priv);
+
        IWL_DEBUG_INFO("ALIVE processing complete.\n");
+       wake_up_interruptible(&priv->wait_command_queue);
 
        if (priv->error_recovering)
                iwl4965_error_recovery(priv);
@@ -6700,6 +6685,8 @@ static void __iwl4965_down(struct iwl4965_priv *priv)
                                        STATUS_RF_KILL_HW |
                               test_bit(STATUS_RF_KILL_SW, &priv->status) <<
                                        STATUS_RF_KILL_SW |
+                              test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
+                                       STATUS_GEO_CONFIGURED |
                               test_bit(STATUS_IN_SUSPEND, &priv->status) <<
                                        STATUS_IN_SUSPEND;
                goto exit;
@@ -6711,6 +6698,8 @@ static void __iwl4965_down(struct iwl4965_priv *priv)
                                STATUS_RF_KILL_HW |
                        test_bit(STATUS_RF_KILL_SW, &priv->status) <<
                                STATUS_RF_KILL_SW |
+                       test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
+                               STATUS_GEO_CONFIGURED |
                        test_bit(STATUS_IN_SUSPEND, &priv->status) <<
                                STATUS_IN_SUSPEND |
                        test_bit(STATUS_FW_ERROR, &priv->status) <<
@@ -6762,9 +6751,7 @@ static void iwl4965_down(struct iwl4965_priv *priv)
 
 static int __iwl4965_up(struct iwl4965_priv *priv)
 {
-       DECLARE_MAC_BUF(mac);
        int rc, i;
-       u32 hw_rf_kill = 0;
 
        if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
                IWL_WARNING("Exit pending; will not bring the NIC up\n");
@@ -6774,7 +6761,7 @@ static int __iwl4965_up(struct iwl4965_priv *priv)
        if (test_bit(STATUS_RF_KILL_SW, &priv->status)) {
                IWL_WARNING("Radio disabled by SW RF kill (module "
                            "parameter)\n");
-               return 0;
+               return -ENODEV;
        }
 
        if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
@@ -6782,6 +6769,18 @@ static int __iwl4965_up(struct iwl4965_priv *priv)
                return -EIO;
        }
 
+       /* If platform's RF_KILL switch is NOT set to KILL */
+       if (iwl4965_read32(priv, CSR_GP_CNTRL) &
+                               CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
+               clear_bit(STATUS_RF_KILL_HW, &priv->status);
+       else {
+               set_bit(STATUS_RF_KILL_HW, &priv->status);
+               if (!test_bit(STATUS_IN_SUSPEND, &priv->status)) {
+                       IWL_WARNING("Radio disabled by HW RF Kill switch\n");
+                       return -ENODEV;
+               }
+       }
+
        iwl4965_write32(priv, CSR_INT, 0xFFFFFFFF);
 
        rc = iwl4965_hw_nic_init(priv);
@@ -6807,19 +6806,11 @@ static int __iwl4965_up(struct iwl4965_priv *priv)
         * This will be used to initialize the on-board processor's
         * data SRAM for a clean start when the runtime program first loads. */
        memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
-                       priv->ucode_data.len);
-
-       /* If platform's RF_KILL switch is set to KILL,
-        * wait for BIT_INT_RF_KILL interrupt before loading uCode
-        * and getting things started */
-       if (!(iwl4965_read32(priv, CSR_GP_CNTRL) &
-                               CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
-               hw_rf_kill = 1;
+              priv->ucode_data.len);
 
-       if (test_bit(STATUS_RF_KILL_HW, &priv->status) || hw_rf_kill) {
-               IWL_WARNING("Radio disabled by HW RF Kill switch\n");
+       /* We return success when we resume from suspend and rf_kill is on. */
+       if (test_bit(STATUS_RF_KILL_HW, &priv->status))
                return 0;
-       }
 
        for (i = 0; i < MAX_HW_RESTARTS; i++) {
 
@@ -6838,13 +6829,6 @@ static int __iwl4965_up(struct iwl4965_priv *priv)
                /* start card; "initialize" will load runtime ucode */
                iwl4965_nic_start(priv);
 
-               /* MAC Address location in EEPROM is same for 3945/4965 */
-               get_eeprom_mac(priv, priv->mac_addr);
-               IWL_DEBUG_INFO("MAC address: %s\n",
-                              print_mac(mac, priv->mac_addr));
-
-               SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
-
                IWL_DEBUG_INFO(DRV_NAME " is coming up\n");
 
                return 0;
@@ -7071,7 +7055,7 @@ static void iwl4965_bg_request_scan(struct work_struct *data)
         * that based on the direct_mask added to each channel entry */
        scan->tx_cmd.len = cpu_to_le16(
                iwl4965_fill_probe_req(priv, (struct ieee80211_mgmt *)scan->data,
-                       IWL_MAX_SCAN_SIZE - sizeof(scan), 0));
+                       IWL_MAX_SCAN_SIZE - sizeof(*scan), 0));
        scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
        scan->tx_cmd.sta_id = priv->hw_setting.bcast_sta_id;
        scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
@@ -7350,23 +7334,83 @@ static void iwl4965_bg_scan_completed(struct work_struct *work)
  *
  *****************************************************************************/
 
+#define UCODE_READY_TIMEOUT    (2 * HZ)
+
 static int iwl4965_mac_start(struct ieee80211_hw *hw)
 {
        struct iwl4965_priv *priv = hw->priv;
+       int ret;
 
        IWL_DEBUG_MAC80211("enter\n");
 
+       if (pci_enable_device(priv->pci_dev)) {
+               IWL_ERROR("Fail to pci_enable_device\n");
+               return -ENODEV;
+       }
+       pci_restore_state(priv->pci_dev);
+       pci_enable_msi(priv->pci_dev);
+
+       ret = request_irq(priv->pci_dev->irq, iwl4965_isr, IRQF_SHARED,
+                         DRV_NAME, priv);
+       if (ret) {
+               IWL_ERROR("Error allocating IRQ %d\n", priv->pci_dev->irq);
+               goto out_disable_msi;
+       }
+
        /* we should be verifying the device is ready to be opened */
        mutex_lock(&priv->mutex);
 
-       priv->is_open = 1;
+       memset(&priv->staging_rxon, 0, sizeof(struct iwl4965_rxon_cmd));
+       /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
+        * ucode filename and max sizes are card-specific. */
 
-       if (!iwl4965_is_rfkill(priv))
-               ieee80211_start_queues(priv->hw);
+       if (!priv->ucode_code.len) {
+               ret = iwl4965_read_ucode(priv);
+               if (ret) {
+                       IWL_ERROR("Could not read microcode: %d\n", ret);
+                       mutex_unlock(&priv->mutex);
+                       goto out_release_irq;
+               }
+       }
+
+       ret = __iwl4965_up(priv);
 
        mutex_unlock(&priv->mutex);
+
+       if (ret)
+               goto out_release_irq;
+
+       IWL_DEBUG_INFO("Start UP work done.\n");
+
+       if (test_bit(STATUS_IN_SUSPEND, &priv->status))
+               return 0;
+
+       /* Wait for START_ALIVE from ucode. Otherwise callbacks from
+        * mac80211 will not be run successfully. */
+       ret = wait_event_interruptible_timeout(priv->wait_command_queue,
+                       test_bit(STATUS_READY, &priv->status),
+                       UCODE_READY_TIMEOUT);
+       if (!ret) {
+               if (!test_bit(STATUS_READY, &priv->status)) {
+                       IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n",
+                                 jiffies_to_msecs(UCODE_READY_TIMEOUT));
+                       ret = -ETIMEDOUT;
+                       goto out_release_irq;
+               }
+       }
+
+       priv->is_open = 1;
        IWL_DEBUG_MAC80211("leave\n");
        return 0;
+
+out_release_irq:
+       free_irq(priv->pci_dev->irq, priv);
+out_disable_msi:
+       pci_disable_msi(priv->pci_dev);
+       pci_disable_device(priv->pci_dev);
+       priv->is_open = 0;
+       IWL_DEBUG_MAC80211("leave - failed\n");
+       return ret;
 }
 
 static void iwl4965_mac_stop(struct ieee80211_hw *hw)
@@ -7375,23 +7419,30 @@ static void iwl4965_mac_stop(struct ieee80211_hw *hw)
 
        IWL_DEBUG_MAC80211("enter\n");
 
+       if (!priv->is_open) {
+               IWL_DEBUG_MAC80211("leave - skip\n");
+               return;
+       }
 
-       mutex_lock(&priv->mutex);
-       /* stop mac, cancel any scan request and clear
-        * RXON_FILTER_ASSOC_MSK BIT
-        */
        priv->is_open = 0;
-       if (!iwl4965_is_ready_rf(priv)) {
-               IWL_DEBUG_MAC80211("leave - RF not ready\n");
+
+       if (iwl4965_is_ready_rf(priv)) {
+               /* stop mac, cancel any scan request and clear
+                * RXON_FILTER_ASSOC_MSK BIT
+                */
+               mutex_lock(&priv->mutex);
+               iwl4965_scan_cancel_timeout(priv, 100);
+               cancel_delayed_work(&priv->post_associate);
                mutex_unlock(&priv->mutex);
-               return;
        }
 
-       iwl4965_scan_cancel_timeout(priv, 100);
-       cancel_delayed_work(&priv->post_associate);
-       priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
-       iwl4965_commit_rxon(priv);
-       mutex_unlock(&priv->mutex);
+       iwl4965_down(priv);
+
+       flush_workqueue(priv->workqueue);
+       free_irq(priv->pci_dev->irq, priv);
+       pci_disable_msi(priv->pci_dev);
+       pci_save_state(priv->pci_dev);
+       pci_disable_device(priv->pci_dev);
 
        IWL_DEBUG_MAC80211("leave\n");
 }
@@ -7429,7 +7480,7 @@ static int iwl4965_mac_add_interface(struct ieee80211_hw *hw,
 
        if (priv->vif) {
                IWL_DEBUG_MAC80211("leave - vif != NULL\n");
-               return 0;
+               return -EOPNOTSUPP;
        }
 
        spin_lock_irqsave(&priv->lock, flags);
@@ -7443,11 +7494,13 @@ static int iwl4965_mac_add_interface(struct ieee80211_hw *hw,
                IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac, conf->mac_addr));
                memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
        }
-       iwl4965_set_mode(priv, conf->type);
 
-       IWL_DEBUG_MAC80211("leave\n");
+       if (iwl4965_is_ready(priv))
+               iwl4965_set_mode(priv, conf->type);
+
        mutex_unlock(&priv->mutex);
 
+       IWL_DEBUG_MAC80211("leave\n");
        return 0;
 }
 
@@ -7549,9 +7602,9 @@ static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *co
 
        IWL_DEBUG_MAC80211("leave\n");
 
-       mutex_unlock(&priv->mutex);
 out:
        clear_bit(STATUS_CONF_PENDING, &priv->status);
+       mutex_unlock(&priv->mutex);
        return ret;
 }
 
@@ -7559,7 +7612,7 @@ static void iwl4965_config_ap(struct iwl4965_priv *priv)
 {
        int rc = 0;
 
-       if (priv->status & STATUS_EXIT_PENDING)
+       if (test_bit(STATUS_EXIT_PENDING, &priv->status))
                return;
 
        /* The following should be done only at AP bring up */
@@ -7636,6 +7689,9 @@ static int iwl4965_mac_config_interface(struct ieee80211_hw *hw,
                return 0;
        }
 
+       if (!iwl4965_is_alive(priv))
+               return -EAGAIN;
+
        mutex_lock(&priv->mutex);
 
        if (conf->bssid)
@@ -7764,25 +7820,35 @@ static void iwl4965_mac_remove_interface(struct ieee80211_hw *hw,
        IWL_DEBUG_MAC80211("leave\n");
 
 }
-static void iwl4965_mac_erp_ie_changed(struct ieee80211_hw *hw,
-               u8 changes, int cts_protection, int preamble)
+
+static void iwl4965_bss_info_changed(struct ieee80211_hw *hw,
+                                    struct ieee80211_vif *vif,
+                                    struct ieee80211_bss_conf *bss_conf,
+                                    u32 changes)
 {
        struct iwl4965_priv *priv = hw->priv;
 
-       if (changes & IEEE80211_ERP_CHANGE_PREAMBLE) {
-               if (preamble == WLAN_ERP_PREAMBLE_SHORT)
+       if (changes & BSS_CHANGED_ERP_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 & IEEE80211_ERP_CHANGE_PROTECTION) {
-               if (cts_protection && (priv->phymode != MODE_IEEE80211A))
+       if (changes & BSS_CHANGED_ERP_CTS_PROT) {
+               if (bss_conf->use_cts_prot && (priv->phymode != MODE_IEEE80211A))
                        priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK;
                else
                        priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
        }
 
+       if (changes & BSS_CHANGED_ASSOC) {
+               /*
+                * TODO:
+                * do stuff instead of sniffing assoc resp
+                */
+       }
+
        if (iwl4965_is_associated(priv))
                iwl4965_send_rxon_assoc(priv);
 }
@@ -8095,7 +8161,6 @@ static void iwl4965_mac_reset_tsf(struct ieee80211_hw *hw)
        mutex_unlock(&priv->mutex);
 
        IWL_DEBUG_MAC80211("leave\n");
-
 }
 
 static int iwl4965_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb,
@@ -8952,7 +9017,7 @@ static struct ieee80211_ops iwl4965_hw_ops = {
        .get_tsf = iwl4965_mac_get_tsf,
        .reset_tsf = iwl4965_mac_reset_tsf,
        .beacon_update = iwl4965_mac_beacon_update,
-       .erp_ie_changed = iwl4965_mac_erp_ie_changed,
+       .bss_info_changed = iwl4965_bss_info_changed,
 #ifdef CONFIG_IWL4965_HT
        .conf_ht = iwl4965_mac_conf_ht,
        .ampdu_action = iwl4965_mac_ampdu_action,
@@ -8970,6 +9035,7 @@ static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
        struct iwl4965_priv *priv;
        struct ieee80211_hw *hw;
        int i;
+       DECLARE_MAC_BUF(mac);
 
        /* Disabling hardware scan means that mac80211 will perform scans
         * "the hard way", rather than using device's scan. */
@@ -9111,7 +9177,6 @@ static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
        /* Device-specific setup */
        if (iwl4965_hw_set_hw_setting(priv)) {
                IWL_ERROR("failed to set hw settings\n");
-               mutex_unlock(&priv->mutex);
                goto out_iounmap;
        }
 
@@ -9136,50 +9201,70 @@ static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
 
        iwl4965_disable_interrupts(priv);
 
-       pci_enable_msi(pdev);
-
-       err = request_irq(pdev->irq, iwl4965_isr, IRQF_SHARED, DRV_NAME, priv);
-       if (err) {
-               IWL_ERROR("Error allocating IRQ %d\n", pdev->irq);
-               goto out_disable_msi;
-       }
-
-       mutex_lock(&priv->mutex);
-
        err = sysfs_create_group(&pdev->dev.kobj, &iwl4965_attribute_group);
        if (err) {
                IWL_ERROR("failed to create sysfs device attributes\n");
-               mutex_unlock(&priv->mutex);
                goto out_release_irq;
        }
 
-       /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
-        * ucode filename and max sizes are card-specific. */
-       err = iwl4965_read_ucode(priv);
+       /* nic init */
+       iwl4965_set_bit(priv, CSR_GIO_CHICKEN_BITS,
+                    CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER);
+
+        iwl4965_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
+        err = iwl4965_poll_bit(priv, CSR_GP_CNTRL,
+                          CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
+                          CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
+        if (err < 0) {
+                IWL_DEBUG_INFO("Failed to init the card\n");
+               goto out_remove_sysfs;
+        }
+       /* Read the EEPROM */
+       err = iwl4965_eeprom_init(priv);
        if (err) {
-               IWL_ERROR("Could not read microcode: %d\n", err);
-               mutex_unlock(&priv->mutex);
-               goto out_pci_alloc;
+               IWL_ERROR("Unable to init EEPROM\n");
+               goto out_remove_sysfs;
        }
+       /* MAC Address location in EEPROM same for 3945/4965 */
+       get_eeprom_mac(priv, priv->mac_addr);
+       IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac, priv->mac_addr));
+       SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
 
-       mutex_unlock(&priv->mutex);
+       err = iwl4965_init_channel_map(priv);
+       if (err) {
+               IWL_ERROR("initializing regulatory failed: %d\n", err);
+               goto out_remove_sysfs;
+       }
 
-       IWL_DEBUG_INFO("Queueing UP work.\n");
+       err = iwl4965_init_geos(priv);
+       if (err) {
+               IWL_ERROR("initializing geos failed: %d\n", err);
+               goto out_free_channel_map;
+       }
+       iwl4965_reset_channel_flag(priv);
 
-       queue_work(priv->workqueue, &priv->up);
+       iwl4965_rate_control_register(priv->hw);
+       err = ieee80211_register_hw(priv->hw);
+       if (err) {
+               IWL_ERROR("Failed to register network device (error %d)\n", err);
+               goto out_free_geos;
+       }
 
-       return 0;
+       priv->hw->conf.beacon_int = 100;
+       priv->mac80211_registered = 1;
+       pci_save_state(pdev);
+       pci_disable_device(pdev);
 
- out_pci_alloc:
-       iwl4965_dealloc_ucode_pci(priv);
+       return 0;
 
+ out_free_geos:
+       iwl4965_free_geos(priv);
+ out_free_channel_map:
+       iwl4965_free_channel_map(priv);
+ out_remove_sysfs:
        sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group);
 
  out_release_irq:
-       free_irq(pdev->irq, priv);
-
- out_disable_msi:
-       pci_disable_msi(pdev);
        destroy_workqueue(priv->workqueue);
        priv->workqueue = NULL;
        iwl4965_unset_hw_setting(priv);
@@ -9245,17 +9330,13 @@ static void iwl4965_pci_remove(struct pci_dev *pdev)
        destroy_workqueue(priv->workqueue);
        priv->workqueue = NULL;
 
-       free_irq(pdev->irq, priv);
-       pci_disable_msi(pdev);
        pci_iounmap(pdev, priv->hw_base);
        pci_release_regions(pdev);
        pci_disable_device(pdev);
        pci_set_drvdata(pdev, NULL);
 
-       kfree(priv->channel_info);
-
-       kfree(priv->ieee_channels);
-       kfree(priv->ieee_rates);
+       iwl4965_free_channel_map(priv);
+       iwl4965_free_geos(priv);
 
        if (priv->ibss_beacon)
                dev_kfree_skb(priv->ibss_beacon);
@@ -9269,89 +9350,27 @@ static int iwl4965_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 {
        struct iwl4965_priv *priv = pci_get_drvdata(pdev);
 
-       set_bit(STATUS_IN_SUSPEND, &priv->status);
-
-       /* Take down the device; powers it off, etc. */
-       iwl4965_down(priv);
-
-       if (priv->mac80211_registered)
-               ieee80211_stop_queues(priv->hw);
+       if (priv->is_open) {
+               set_bit(STATUS_IN_SUSPEND, &priv->status);
+               iwl4965_mac_stop(priv->hw);
+               priv->is_open = 1;
+       }
 
-       pci_save_state(pdev);
-       pci_disable_device(pdev);
        pci_set_power_state(pdev, PCI_D3hot);
 
        return 0;
 }
 
-static void iwl4965_resume(struct iwl4965_priv *priv)
-{
-       unsigned long flags;
-
-       /* The following it a temporary work around due to the
-        * suspend / resume not fully initializing the NIC correctly.
-        * Without all of the following, resume will not attempt to take
-        * down the NIC (it shouldn't really need to) and will just try
-        * and bring the NIC back up.  However that fails during the
-        * ucode verification process.  This then causes iwl4965_down to be
-        * called *after* iwl4965_hw_nic_init() has succeeded -- which
-        * then lets the next init sequence succeed.  So, we've
-        * replicated all of that NIC init code here... */
-
-       iwl4965_write32(priv, CSR_INT, 0xFFFFFFFF);
-
-       iwl4965_hw_nic_init(priv);
-
-       iwl4965_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
-       iwl4965_write32(priv, CSR_UCODE_DRV_GP1_CLR,
-                   CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
-       iwl4965_write32(priv, CSR_INT, 0xFFFFFFFF);
-       iwl4965_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
-       iwl4965_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
-
-       /* tell the device to stop sending interrupts */
-       iwl4965_disable_interrupts(priv);
-
-       spin_lock_irqsave(&priv->lock, flags);
-       iwl4965_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
-
-       if (!iwl4965_grab_nic_access(priv)) {
-               iwl4965_write_prph(priv, APMG_CLK_DIS_REG,
-                               APMG_CLK_VAL_DMA_CLK_RQT);
-               iwl4965_release_nic_access(priv);
-       }
-       spin_unlock_irqrestore(&priv->lock, flags);
-
-       udelay(5);
-
-       iwl4965_hw_nic_reset(priv);
-
-       /* Bring the device back up */
-       clear_bit(STATUS_IN_SUSPEND, &priv->status);
-       queue_work(priv->workqueue, &priv->up);
-}
-
 static int iwl4965_pci_resume(struct pci_dev *pdev)
 {
        struct iwl4965_priv *priv = pci_get_drvdata(pdev);
-       int err;
-
-       printk(KERN_INFO "Coming out of suspend...\n");
 
        pci_set_power_state(pdev, PCI_D0);
-       err = pci_enable_device(pdev);
-       pci_restore_state(pdev);
-
-       /*
-        * Suspend/Resume resets the PCI configuration space, so we have to
-        * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
-        * from interfering with C3 CPU state. pci_restore_state won't help
-        * here since it only restores the first 64 bytes pci config header.
-        */
-       pci_write_config_byte(pdev, 0x41, 0x00);
 
-       iwl4965_resume(priv);
+       if (priv->is_open)
+               iwl4965_mac_start(priv->hw);
 
+       clear_bit(STATUS_IN_SUSPEND, &priv->status);
        return 0;
 }