diff options
| -rw-r--r-- | drivers/net/wireless/iwlwifi/dvm/mac80211.c | 6 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/dvm/main.c | 4 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-trans.h | 25 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/fw.c | 24 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/mac80211.c | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/ops.c | 9 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/tt.c | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/pcie/trans.c | 50 |
8 files changed, 55 insertions, 67 deletions
diff --git a/drivers/net/wireless/iwlwifi/dvm/mac80211.c b/drivers/net/wireless/iwlwifi/dvm/mac80211.c index 217f1ca321a0..9f4239d31c08 100644 --- a/drivers/net/wireless/iwlwifi/dvm/mac80211.c +++ b/drivers/net/wireless/iwlwifi/dvm/mac80211.c @@ -322,12 +322,6 @@ static void iwlagn_mac_stop(struct ieee80211_hw *hw) flush_workqueue(priv->workqueue); - /* User space software may expect getting rfkill changes - * even if interface is down, trans->down will leave the RF - * kill interrupt enabled - */ - iwl_trans_stop_hw(priv->trans, false); - IWL_DEBUG_MAC80211(priv, "leave\n"); } diff --git a/drivers/net/wireless/iwlwifi/dvm/main.c b/drivers/net/wireless/iwlwifi/dvm/main.c index 7aad766865cf..fd9f6cf96cfd 100644 --- a/drivers/net/wireless/iwlwifi/dvm/main.c +++ b/drivers/net/wireless/iwlwifi/dvm/main.c @@ -1313,7 +1313,7 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans, } /* Reset chip to save power until we load uCode during "up". */ - iwl_trans_stop_hw(priv->trans, false); + iwl_trans_stop_device(priv->trans); priv->nvm_data = iwl_parse_eeprom_data(priv->trans->dev, priv->cfg, priv->eeprom_blob, @@ -1458,7 +1458,7 @@ static void iwl_op_mode_dvm_stop(struct iwl_op_mode *op_mode) dev_kfree_skb(priv->beacon_skb); - iwl_trans_stop_hw(priv->trans, true); + iwl_trans_op_mode_leave(priv->trans); ieee80211_free_hw(priv->hw); } diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h index 143292b4dbbf..43ea1249d1bb 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans.h +++ b/drivers/net/wireless/iwlwifi/iwl-trans.h @@ -100,8 +100,7 @@ * start_fw * * 5) Then when finished (or reset): - * stop_fw (a.k.a. stop device for the moment) - * stop_hw + * stop_device * * 6) Eventually, the free function will be called. */ @@ -361,9 +360,7 @@ struct iwl_trans; * * @start_hw: starts the HW- from that point on, the HW can send interrupts * May sleep - * @stop_hw: stops the HW- from that point on, the HW will be in low power but - * will still issue interrupt if the HW RF kill is triggered unless - * op_mode_leaving is true. + * @op_mode_leave: Turn off the HW RF kill indication if on * May sleep * @start_fw: allocates and inits all the resources for the transport * layer. Also kick a fw image. @@ -371,8 +368,11 @@ struct iwl_trans; * @fw_alive: called when the fw sends alive notification. If the fw provides * the SCD base address in SRAM, then provide it here, or 0 otherwise. * May sleep - * @stop_device:stops the whole device (embedded CPU put to reset) - * May sleep + * @stop_device: stops the whole device (embedded CPU put to reset) and stops + * the HW. From that point on, the HW will be in low power but will still + * issue interrupt if the HW RF kill is triggered. This callback must do + * the right thing and not crash even if start_hw() was called but not + * start_fw(). May sleep * @d3_suspend: put the device into the correct mode for WoWLAN during * suspend. This is optional, if not implemented WoWLAN will not be * supported. This callback may sleep. @@ -418,7 +418,7 @@ struct iwl_trans; struct iwl_trans_ops { int (*start_hw)(struct iwl_trans *iwl_trans); - void (*stop_hw)(struct iwl_trans *iwl_trans, bool op_mode_leaving); + void (*op_mode_leave)(struct iwl_trans *iwl_trans); int (*start_fw)(struct iwl_trans *trans, const struct fw_img *fw, bool run_in_rfkill); void (*fw_alive)(struct iwl_trans *trans, u32 scd_addr); @@ -540,15 +540,14 @@ static inline int iwl_trans_start_hw(struct iwl_trans *trans) return trans->ops->start_hw(trans); } -static inline void iwl_trans_stop_hw(struct iwl_trans *trans, - bool op_mode_leaving) +static inline void iwl_trans_op_mode_leave(struct iwl_trans *trans) { might_sleep(); - trans->ops->stop_hw(trans, op_mode_leaving); + if (trans->ops->op_mode_leave) + trans->ops->op_mode_leave(trans); - if (op_mode_leaving) - trans->op_mode = NULL; + trans->op_mode = NULL; trans->state = IWL_TRANS_NO_FW; } diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c index b2bfa732a594..27ba104a3540 100644 --- a/drivers/net/wireless/iwlwifi/mvm/fw.c +++ b/drivers/net/wireless/iwlwifi/mvm/fw.c @@ -241,7 +241,7 @@ int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm) lockdep_assert_held(&mvm->mutex); - if (mvm->init_ucode_complete) + if (WARN_ON_ONCE(mvm->init_ucode_complete)) return 0; iwl_init_notification_wait(&mvm->notif_wait, @@ -287,7 +287,8 @@ int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm) IWL_DEBUG_RF_KILL(mvm, "jump over all phy activities due to RF kill\n"); iwl_remove_notification(&mvm->notif_wait, &calib_wait); - return 1; + ret = 1; + goto out; } /* Send TX valid antennas before triggering calibrations */ @@ -319,9 +320,7 @@ int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm) error: iwl_remove_notification(&mvm->notif_wait, &calib_wait); out: - if (!iwlmvm_mod_params.init_dbg) { - iwl_trans_stop_device(mvm->trans); - } else if (!mvm->nvm_data) { + if (iwlmvm_mod_params.init_dbg && !mvm->nvm_data) { /* we want to debug INIT and we have no NVM - fake */ mvm->nvm_data = kzalloc(sizeof(struct iwl_nvm_data) + sizeof(struct ieee80211_channel) + @@ -370,11 +369,16 @@ int iwl_mvm_up(struct iwl_mvm *mvm) ret = -ERFKILL; goto error; } - /* should stop & start HW since that INIT image just loaded */ - iwl_trans_stop_hw(mvm->trans, false); - ret = iwl_trans_start_hw(mvm->trans); - if (ret) - return ret; + if (!iwlmvm_mod_params.init_dbg) { + /* + * should stop and start HW since that INIT + * image just loaded + */ + iwl_trans_stop_device(mvm->trans); + ret = iwl_trans_start_hw(mvm->trans); + if (ret) + return ret; + } } if (iwlmvm_mod_params.init_dbg) diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c index fbd3114d5554..272aabd25cb8 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c @@ -405,7 +405,6 @@ static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) { iwl_trans_stop_device(mvm->trans); - iwl_trans_stop_hw(mvm->trans, false); mvm->scan_status = IWL_MVM_SCAN_NONE; @@ -477,7 +476,6 @@ static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) cancel_work_sync(&mvm->roc_done_wk); iwl_trans_stop_device(mvm->trans); - iwl_trans_stop_hw(mvm->trans, false); iwl_mvm_async_handlers_purge(mvm); /* async_handlers_list is empty and will stay empty: HW is stopped */ diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c index 668525f4ef77..a6f4be8d03d7 100644 --- a/drivers/net/wireless/iwlwifi/mvm/ops.c +++ b/drivers/net/wireless/iwlwifi/mvm/ops.c @@ -436,16 +436,13 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, mutex_lock(&mvm->mutex); err = iwl_run_init_mvm_ucode(mvm, true); + iwl_trans_stop_device(trans); mutex_unlock(&mvm->mutex); /* returns 0 if successful, 1 if success but in rfkill */ if (err < 0 && !iwlmvm_mod_params.init_dbg) { IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err); goto out_free; } - - /* Stop the hw after the ALIVE and NVM has been read */ - if (!iwlmvm_mod_params.init_dbg) - iwl_trans_stop_hw(mvm->trans, false); } scan_size = sizeof(struct iwl_scan_cmd) + @@ -478,7 +475,7 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, iwl_phy_db_free(mvm->phy_db); kfree(mvm->scan_cmd); if (!iwlwifi_mod_params.nvm_file) - iwl_trans_stop_hw(trans, true); + iwl_trans_op_mode_leave(trans); ieee80211_free_hw(mvm->hw); return NULL; } @@ -502,7 +499,7 @@ static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) kfree(mvm->d3_resume_sram); #endif - iwl_trans_stop_hw(mvm->trans, true); + iwl_trans_op_mode_leave(mvm->trans); iwl_phy_db_free(mvm->phy_db); mvm->phy_db = NULL; diff --git a/drivers/net/wireless/iwlwifi/mvm/tt.c b/drivers/net/wireless/iwlwifi/mvm/tt.c index 18be04da8e3f..a0ec7b3473bd 100644 --- a/drivers/net/wireless/iwlwifi/mvm/tt.c +++ b/drivers/net/wireless/iwlwifi/mvm/tt.c @@ -340,7 +340,7 @@ static void check_exit_ctkill(struct work_struct *work) iwl_trans_start_hw(mvm->trans); temp = check_nic_temperature(mvm); - iwl_trans_stop_hw(mvm->trans, false); + iwl_trans_stop_device(mvm->trans); if (temp < MIN_TEMPERATURE || temp > MAX_TEMPERATURE) { IWL_DEBUG_TEMP(mvm, "Failed to measure NIC temperature\n"); diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c index cde9c16f6e4f..43eed4d8a52a 100644 --- a/drivers/net/wireless/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/iwlwifi/pcie/trans.c @@ -641,6 +641,7 @@ static void iwl_trans_pcie_stop_device(struct iwl_trans *trans) { struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); unsigned long flags; + bool hw_rfkill; /* tell the device to stop sending interrupts */ spin_lock_irqsave(&trans_pcie->irq_lock, flags); @@ -681,8 +682,6 @@ static void iwl_trans_pcie_stop_device(struct iwl_trans *trans) iwl_disable_interrupts(trans); spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); - iwl_enable_rfkill_int(trans); - /* stop and reset the on-board processor */ iwl_write32(trans, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); @@ -692,6 +691,25 @@ static void iwl_trans_pcie_stop_device(struct iwl_trans *trans) clear_bit(STATUS_DEVICE_ENABLED, &trans_pcie->status); clear_bit(STATUS_TPOWER_PMI, &trans_pcie->status); clear_bit(STATUS_RFKILL, &trans_pcie->status); + + /* + * Even if we stop the HW, we still want the RF kill + * interrupt + */ + iwl_enable_rfkill_int(trans); + + /* + * Check again since the RF kill state may have changed while + * all the interrupts were disabled, in this case we couldn't + * receive the RF kill interrupt and update the state in the + * op_mode. + */ + hw_rfkill = iwl_is_rfkill_set(trans); + if (hw_rfkill) + set_bit(STATUS_RFKILL, &trans_pcie->status); + else + clear_bit(STATUS_RFKILL, &trans_pcie->status); + iwl_op_mode_hw_rf_kill(trans->op_mode, hw_rfkill); } static void iwl_trans_pcie_d3_suspend(struct iwl_trans *trans, bool test) @@ -806,13 +824,12 @@ static int iwl_trans_pcie_start_hw(struct iwl_trans *trans) return 0; } -static void iwl_trans_pcie_stop_hw(struct iwl_trans *trans, - bool op_mode_leaving) +static void iwl_trans_pcie_op_mode_leave(struct iwl_trans *trans) { struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); - bool hw_rfkill; unsigned long flags; + /* disable interrupts - don't enable HW RF kill interrupt */ spin_lock_irqsave(&trans_pcie->irq_lock, flags); iwl_disable_interrupts(trans); spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); @@ -824,27 +841,6 @@ static void iwl_trans_pcie_stop_hw(struct iwl_trans *trans, spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); iwl_pcie_disable_ict(trans); - - if (!op_mode_leaving) { - /* - * Even if we stop the HW, we still want the RF kill - * interrupt - */ - iwl_enable_rfkill_int(trans); - - /* - * Check again since the RF kill state may have changed while - * all the interrupts were disabled, in this case we couldn't - * receive the RF kill interrupt and update the state in the - * op_mode. - */ - hw_rfkill = iwl_is_rfkill_set(trans); - if (hw_rfkill) - set_bit(STATUS_RFKILL, &trans_pcie->status); - else - clear_bit(STATUS_RFKILL, &trans_pcie->status); - iwl_op_mode_hw_rf_kill(trans->op_mode, hw_rfkill); - } } static void iwl_trans_pcie_write8(struct iwl_trans *trans, u32 ofs, u8 val) @@ -1457,7 +1453,7 @@ static int iwl_trans_pcie_dbgfs_register(struct iwl_trans *trans, static const struct iwl_trans_ops trans_ops_pcie = { .start_hw = iwl_trans_pcie_start_hw, - .stop_hw = iwl_trans_pcie_stop_hw, + .op_mode_leave = iwl_trans_pcie_op_mode_leave, .fw_alive = iwl_trans_pcie_fw_alive, .start_fw = iwl_trans_pcie_start_fw, .stop_device = iwl_trans_pcie_stop_device, |