diff options
Diffstat (limited to 'drivers/net/wireless/iwlegacy/iwl4965-base.c')
| -rw-r--r-- | drivers/net/wireless/iwlegacy/iwl4965-base.c | 45 |
1 files changed, 26 insertions, 19 deletions
diff --git a/drivers/net/wireless/iwlegacy/iwl4965-base.c b/drivers/net/wireless/iwlegacy/iwl4965-base.c index f8870543d68..f781b7e225b 100644 --- a/drivers/net/wireless/iwlegacy/iwl4965-base.c +++ b/drivers/net/wireless/iwlegacy/iwl4965-base.c @@ -1069,9 +1069,12 @@ static void iwl4965_irq_tasklet(struct iwl_priv *priv) } /* Re-enable all interrupts */ - /* only Re-enable if diabled by irq */ + /* only Re-enable if disabled by irq */ if (test_bit(STATUS_INT_ENABLED, &priv->status)) iwl_legacy_enable_interrupts(priv); + /* Re-enable RF_KILL if it occurred */ + else if (handled & CSR_INT_BIT_RF_KILL) + iwl_legacy_enable_rfkill_int(priv); #ifdef CONFIG_IWLWIFI_LEGACY_DEBUG if (iwl_legacy_get_debug_level(priv) & (IWL_DL_ISR)) { @@ -2139,7 +2142,7 @@ static void iwl4965_cancel_deferred_work(struct iwl_priv *priv); static void __iwl4965_down(struct iwl_priv *priv) { unsigned long flags; - int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status); + int exit_pending; IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n"); @@ -2401,11 +2404,12 @@ static void iwl4965_bg_init_alive_start(struct work_struct *data) struct iwl_priv *priv = container_of(data, struct iwl_priv, init_alive_start.work); + mutex_lock(&priv->mutex); if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; + goto out; - mutex_lock(&priv->mutex); priv->cfg->ops->lib->init_alive_start(priv); +out: mutex_unlock(&priv->mutex); } @@ -2414,11 +2418,12 @@ static void iwl4965_bg_alive_start(struct work_struct *data) struct iwl_priv *priv = container_of(data, struct iwl_priv, alive_start.work); + mutex_lock(&priv->mutex); if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; + goto out; - mutex_lock(&priv->mutex); iwl4965_alive_start(priv); +out: mutex_unlock(&priv->mutex); } @@ -2468,10 +2473,12 @@ static void iwl4965_bg_restart(struct work_struct *data) } else { iwl4965_down(priv); - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) + mutex_lock(&priv->mutex); + if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { + mutex_unlock(&priv->mutex); return; + } - mutex_lock(&priv->mutex); __iwl4965_up(priv); mutex_unlock(&priv->mutex); } @@ -2624,9 +2631,10 @@ void iwl4965_mac_stop(struct ieee80211_hw *hw) flush_workqueue(priv->workqueue); - /* enable interrupts again in order to receive rfkill changes */ + /* User space software may expect getting rfkill changes + * even if interface is down */ iwl_write32(priv, CSR_INT, 0xFFFFFFFF); - iwl_legacy_enable_interrupts(priv); + iwl_legacy_enable_rfkill_int(priv); IWL_DEBUG_MAC80211(priv, "leave\n"); } @@ -2847,21 +2855,22 @@ void iwl4965_mac_channel_switch(struct ieee80211_hw *hw, IWL_DEBUG_MAC80211(priv, "enter\n"); + mutex_lock(&priv->mutex); + if (iwl_legacy_is_rfkill(priv)) - goto out_exit; + goto out; if (test_bit(STATUS_EXIT_PENDING, &priv->status) || test_bit(STATUS_SCANNING, &priv->status)) - goto out_exit; + goto out; if (!iwl_legacy_is_associated_ctx(ctx)) - goto out_exit; + goto out; /* channel switch in progress */ if (priv->switch_rxon.switch_in_progress == true) - goto out_exit; + goto out; - mutex_lock(&priv->mutex); if (priv->cfg->ops->lib->set_channel_switch) { ch = channel->hw_value; @@ -2917,7 +2926,6 @@ void iwl4965_mac_channel_switch(struct ieee80211_hw *hw, } out: mutex_unlock(&priv->mutex); -out_exit: if (!priv->switch_rxon.switch_in_progress) ieee80211_chswitch_done(ctx->vif, false); IWL_DEBUG_MAC80211(priv, "leave\n"); @@ -3116,7 +3124,6 @@ static int iwl4965_init_drv(struct iwl_priv *priv) INIT_LIST_HEAD(&priv->free_frames); mutex_init(&priv->mutex); - mutex_init(&priv->sync_cmd_mutex); priv->ieee_channels = NULL; priv->ieee_rates = NULL; @@ -3406,14 +3413,14 @@ iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) * 8. Enable interrupts and read RFKILL state *********************************************/ - /* enable interrupts if needed: hw bug w/a */ + /* enable rfkill interrupt: hw bug w/a */ pci_read_config_word(priv->pci_dev, PCI_COMMAND, &pci_cmd); if (pci_cmd & PCI_COMMAND_INTX_DISABLE) { pci_cmd &= ~PCI_COMMAND_INTX_DISABLE; pci_write_config_word(priv->pci_dev, PCI_COMMAND, pci_cmd); } - iwl_legacy_enable_interrupts(priv); + iwl_legacy_enable_rfkill_int(priv); /* If platform's RF_KILL switch is NOT set to KILL */ if (iwl_read32(priv, CSR_GP_CNTRL) & |