1 files changed, 218 insertions, 38 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 1c9866daf815..344e99de4cab 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -657,6 +657,131 @@ static void iwl_bg_statistics_periodic(unsigned long data)
         iwl_send_statistics_request(priv, CMD_ASYNC, false);
 }
 
+
+static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base,
+                                        u32 start_idx, u32 num_events,
+                                        u32 mode)
+{
+        u32 i;
+        u32 ptr;        /* SRAM byte address of log data */
+        u32 ev, time, data; /* event log data */
+        unsigned long reg_flags;
+
+        if (mode == 0)
+                ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32));
+        else
+                ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32));
+
+        /* Make sure device is powered up for SRAM reads */
+        spin_lock_irqsave(&priv->reg_lock, reg_flags);
+        if (iwl_grab_nic_access(priv)) {
+                spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
+                return;
+        }
+
+        /* Set starting address; reads will auto-increment */
+        _iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, ptr);
+        rmb();
+
+        /*
+         * "time" is actually "data" for mode 0 (no timestamp).
+         * place event id # at far right for easier visual parsing.
+         */
+        for (i = 0; i < num_events; i++) {
+                ev = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
+                time = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
+                if (mode == 0) {
+                        trace_iwlwifi_dev_ucode_cont_event(priv,
+                                                        0, time, ev);
+                } else {
+                        data = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
+                        trace_iwlwifi_dev_ucode_cont_event(priv,
+                                                time, data, ev);
+                }
+        }
+        /* Allow device to power down */
+        iwl_release_nic_access(priv);
+        spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
+}
+
+void iwl_continuous_event_trace(struct iwl_priv *priv)
+{
+        u32 capacity;   /* event log capacity in # entries */
+        u32 base;       /* SRAM byte address of event log header */
+        u32 mode;       /* 0 - no timestamp, 1 - timestamp recorded */
+        u32 num_wraps;  /* # times uCode wrapped to top of log */
+        u32 next_entry; /* index of next entry to be written by uCode */
+
+        if (priv->ucode_type == UCODE_INIT)
+                base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr);
+        else
+                base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
+        if (priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
+                capacity = iwl_read_targ_mem(priv, base);
+                num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
+                mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32)));
+                next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
+        } else
+                return;
+
+        if (num_wraps == priv->event_log.num_wraps) {
+                iwl_print_cont_event_trace(priv,
+                                       base, priv->event_log.next_entry,
+                                       next_entry - priv->event_log.next_entry,
+                                       mode);
+                priv->event_log.non_wraps_count++;
+        } else {
+                if ((num_wraps - priv->event_log.num_wraps) > 1)
+                        priv->event_log.wraps_more_count++;
+                else
+                        priv->event_log.wraps_once_count++;
+                trace_iwlwifi_dev_ucode_wrap_event(priv,
+                                num_wraps - priv->event_log.num_wraps,
+                                next_entry, priv->event_log.next_entry);
+                if (next_entry < priv->event_log.next_entry) {
+                        iwl_print_cont_event_trace(priv, base,
+                               priv->event_log.next_entry,
+                               capacity - priv->event_log.next_entry,
+                               mode);
+
+                        iwl_print_cont_event_trace(priv, base, 0,
+                                next_entry, mode);
+                } else {
+                        iwl_print_cont_event_trace(priv, base,
+                               next_entry, capacity - next_entry,
+                               mode);
+
+                        iwl_print_cont_event_trace(priv, base, 0,
+                                next_entry, mode);
+                }
+        }
+        priv->event_log.num_wraps = num_wraps;
+        priv->event_log.next_entry = next_entry;
+}
+
+/**
+ * iwl_bg_ucode_trace - Timer callback to log ucode event
+ *
+ * The timer is continually set to execute every
+ * UCODE_TRACE_PERIOD milliseconds after the last timer expired
+ * this function is to perform continuous uCode event logging operation
+ * if enabled
+ */
+static void iwl_bg_ucode_trace(unsigned long data)
+{
+        struct iwl_priv *priv = (struct iwl_priv *)data;
+
+        if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+                return;
+
+        if (priv->event_log.ucode_trace) {
+                iwl_continuous_event_trace(priv);
+                /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
+                mod_timer(&priv->ucode_trace,
+                         jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
+        }
+}
+
 static void iwl_rx_beacon_notif(struct iwl_priv *priv,
                                 struct iwl_rx_mem_buffer *rxb)
 {
@@ -689,12 +814,14 @@ static void iwl_rx_card_state_notif(struct iwl_priv *priv,
         u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
         unsigned long status = priv->status;
 
-        IWL_DEBUG_RF_KILL(priv, "Card state received: HW:%s SW:%s\n",
+        IWL_DEBUG_RF_KILL(priv, "Card state received: HW:%s SW:%s CT:%s\n",
                           (flags & HW_CARD_DISABLED) ? "Kill" : "On",
-                          (flags & SW_CARD_DISABLED) ? "Kill" : "On");
+                          (flags & SW_CARD_DISABLED) ? "Kill" : "On",
+                          (flags & CT_CARD_DISABLED) ?
+                          "Reached" : "Not reached");
 
         if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED |
-                     RF_CARD_DISABLED)) {
+                     CT_CARD_DISABLED)) {
 
                 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
                             CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
@@ -708,10 +835,10 @@ static void iwl_rx_card_state_notif(struct iwl_priv *priv,
                         iwl_write_direct32(priv, HBUS_TARG_MBX_C,
                                         HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
                 }
-                if (flags & RF_CARD_DISABLED)
+                if (flags & CT_CARD_DISABLED)
                         iwl_tt_enter_ct_kill(priv);
         }
-        if (!(flags & RF_CARD_DISABLED))
+        if (!(flags & CT_CARD_DISABLED))
                 iwl_tt_exit_ct_kill(priv);
 
         if (flags & HW_CARD_DISABLED)
@@ -1705,8 +1832,9 @@ void iwl_dump_nic_error_log(struct iwl_priv *priv)
  * iwl_print_event_log - Dump error event log to syslog
  *
  */
-static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
-                                u32 num_events, u32 mode)
+static int iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
+                               u32 num_events, u32 mode,
+                               int pos, char **buf, size_t bufsz)
 {
         u32 i;
         u32 base;       /* SRAM byte address of event log header */
@@ -1716,7 +1844,7 @@ static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
         unsigned long reg_flags;
 
         if (num_events == 0)
-                return;
+                return pos;
         if (priv->ucode_type == UCODE_INIT)
                 base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
         else
@@ -1744,27 +1872,44 @@ static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
                 time = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
                 if (mode == 0) {
                         /* data, ev */
-                        trace_iwlwifi_dev_ucode_event(priv, 0, time, ev);
-                        IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n", time, ev);
+                        if (bufsz) {
+                                pos += scnprintf(*buf + pos, bufsz - pos,
+                                                "EVT_LOG:0x%08x:%04u\n",
+                                                time, ev);
+                        } else {
+                                trace_iwlwifi_dev_ucode_event(priv, 0,
+                                        time, ev);
+                                IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n",
+                                        time, ev);
+                        }
                 } else {
                         data = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
-                        IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n",
+                        if (bufsz) {
+                                pos += scnprintf(*buf + pos, bufsz - pos,
+                                                "EVT_LOGT:%010u:0x%08x:%04u\n",
+                                                 time, data, ev);
+                        } else {
+                                IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n",
                                         time, data, ev);
-                        trace_iwlwifi_dev_ucode_event(priv, time, data, ev);
+                                trace_iwlwifi_dev_ucode_event(priv, time,
+                                        data, ev);
+                        }
                 }
         }
 
         /* Allow device to power down */
         iwl_release_nic_access(priv);
         spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
+        return pos;
 }
 
 /**
  * iwl_print_last_event_logs - Dump the newest # of event log to syslog
  */
-static void iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
-                                      u32 num_wraps, u32 next_entry,
-                                      u32 size, u32 mode)
+static int iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
+                                    u32 num_wraps, u32 next_entry,
+                                    u32 size, u32 mode,
+                                    int pos, char **buf, size_t bufsz)
 {
         /*
          * display the newest DEFAULT_LOG_ENTRIES entries
@@ -1772,21 +1917,26 @@ static void iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
          */
         if (num_wraps) {
                 if (next_entry < size) {
-                        iwl_print_event_log(priv,
-                                        capacity - (size - next_entry),
-                                        size - next_entry, mode);
-                        iwl_print_event_log(priv, 0,
-                                    next_entry, mode);
+                        pos = iwl_print_event_log(priv,
+                                                capacity - (size - next_entry),
+                                                size - next_entry, mode,
+                                                pos, buf, bufsz);
+                        pos = iwl_print_event_log(priv, 0,
+                                                  next_entry, mode,
+                                                  pos, buf, bufsz);
                 } else
-                        iwl_print_event_log(priv, next_entry - size,
-                                    size, mode);
+                        pos = iwl_print_event_log(priv, next_entry - size,
+                                                  size, mode, pos, buf, bufsz);
         } else {
-                if (next_entry < size)
-                        iwl_print_event_log(priv, 0, next_entry, mode);
-                else
-                        iwl_print_event_log(priv, next_entry - size,
-                                            size, mode);
+                if (next_entry < size) {
+                        pos = iwl_print_event_log(priv, 0, next_entry,
+                                                  mode, pos, buf, bufsz);
+                } else {
+                        pos = iwl_print_event_log(priv, next_entry - size,
+                                                  size, mode, pos, buf, bufsz);
+                }
         }
+        return pos;
 }
 
 /* For sanity check only.  Actual size is determined by uCode, typ. 512 */
@@ -1794,7 +1944,8 @@ static void iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
 
 #define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20)
 
-void iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
+int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
+                            char **buf, bool display)
 {
         u32 base;       /* SRAM byte address of event log header */
         u32 capacity;   /* event log capacity in # entries */
@@ -1802,6 +1953,8 @@ void iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
         u32 num_wraps;  /* # times uCode wrapped to top of log */
         u32 next_entry; /* index of next entry to be written by uCode */
         u32 size;       /* # entries that we'll print */
+        int pos = 0;
+        size_t bufsz = 0;
 
         if (priv->ucode_type == UCODE_INIT)
                 base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
@@ -1812,7 +1965,7 @@ void iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
                 IWL_ERR(priv,
                         "Invalid event log pointer 0x%08X for %s uCode\n",
                         base, (priv->ucode_type == UCODE_INIT) ? "Init" : "RT");
-                return;
+                return pos;
         }
 
         /* event log header */
@@ -1838,7 +1991,7 @@ void iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
         /* bail out if nothing in log */
         if (size == 0) {
                 IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n");
-                return;
+                return pos;
         }
 
 #ifdef CONFIG_IWLWIFI_DEBUG
@@ -1853,6 +2006,15 @@ void iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
                 size);
 
 #ifdef CONFIG_IWLWIFI_DEBUG
+        if (display) {
+                if (full_log)
+                        bufsz = capacity * 48;
+                else
+                        bufsz = size * 48;
+                *buf = kmalloc(bufsz, GFP_KERNEL);
+                if (!*buf)
+                        return pos;
+        }
         if ((iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) || full_log) {
                 /*
                  * if uCode has wrapped back to top of log,
@@ -1860,17 +2022,22 @@ void iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
                  * i.e the next one that uCode would fill.
                  */
                 if (num_wraps)
-                        iwl_print_event_log(priv, next_entry,
-                                            capacity - next_entry, mode);
+                        pos = iwl_print_event_log(priv, next_entry,
+                                                capacity - next_entry, mode,
+                                                pos, buf, bufsz);
                 /* (then/else) start at top of log */
-                iwl_print_event_log(priv, 0, next_entry, mode);
+                pos = iwl_print_event_log(priv, 0,
+                                          next_entry, mode, pos, buf, bufsz);
         } else
-                iwl_print_last_event_logs(priv, capacity, num_wraps,
-                                        next_entry, size, mode);
+                pos = iwl_print_last_event_logs(priv, capacity, num_wraps,
+                                                next_entry, size, mode,
+                                                pos, buf, bufsz);
 #else
-        iwl_print_last_event_logs(priv, capacity, num_wraps,
-                                next_entry, size, mode);
+        pos = iwl_print_last_event_logs(priv, capacity, num_wraps,
+                                        next_entry, size, mode,
+                                        pos, buf, bufsz);
 #endif
+        return pos;
 }
 
 /**
@@ -2456,6 +2623,10 @@ static int iwl_setup_mac(struct iwl_priv *priv)
                 hw->flags |= IEEE80211_HW_SUPPORTS_PS |
                              IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
 
+        if (priv->cfg->sku & IWL_SKU_N)
+                hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
+                             IEEE80211_HW_SUPPORTS_STATIC_SMPS;
+
         hw->sta_data_size = sizeof(struct iwl_station_priv);
         hw->wiphy->interface_modes =
                 BIT(NL80211_IFTYPE_STATION) |
@@ -2784,6 +2955,9 @@ static int iwl_mac_ampdu_action(struct ieee80211_hw *hw,
                         return 0;
                 else
                         return ret;
+        case IEEE80211_AMPDU_TX_OPERATIONAL:
+                /* do nothing */
+                return -EOPNOTSUPP;
         default:
                 IWL_DEBUG_HT(priv, "unknown\n");
                 return -EINVAL;
@@ -3126,6 +3300,10 @@ static void iwl_setup_deferred_work(struct iwl_priv *priv)
         priv->statistics_periodic.data = (unsigned long)priv;
         priv->statistics_periodic.function = iwl_bg_statistics_periodic;
 
+        init_timer(&priv->ucode_trace);
+        priv->ucode_trace.data = (unsigned long)priv;
+        priv->ucode_trace.function = iwl_bg_ucode_trace;
+
         if (!priv->cfg->use_isr_legacy)
                 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
                         iwl_irq_tasklet, (unsigned long)priv);
@@ -3144,6 +3322,7 @@ static void iwl_cancel_deferred_work(struct iwl_priv *priv)
         cancel_delayed_work(&priv->alive_start);
         cancel_work_sync(&priv->beacon_update);
         del_timer_sync(&priv->statistics_periodic);
+        del_timer_sync(&priv->ucode_trace);
 }
 
 static void iwl_init_hw_rates(struct iwl_priv *priv,
@@ -3188,6 +3367,7 @@ static int iwl_init_drv(struct iwl_priv *priv)
         priv->band = IEEE80211_BAND_2GHZ;
 
         priv->iw_mode = NL80211_IFTYPE_STATION;
+        priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
 
         /* Choose which receivers/antennas to use */
         if (priv->cfg->ops->hcmd->set_rxon_chain)
@@ -3589,7 +3769,7 @@ static void __devexit iwl_pci_remove(struct pci_dev *pdev)
  *****************************************************************************/
 
 /* Hardware specific file defines the PCI IDs table for that hardware module */
-static struct pci_device_id iwl_hw_card_ids[] = {
+static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
 #ifdef CONFIG_IWL4965
         {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID, iwl4965_agn_cfg)},
         {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID, iwl4965_agn_cfg)},