Merge branch 'wireless-next-2.6' of...

Merge branch 'wireless-next-2.6' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-2.6

drivers/net/wireless/iwlwifi/iwl-agn-lib.c

@@ -483,8 +483,6 @@ void iwlagn_rx_handler_setup(struct iwl_priv *priv)
 	/* init calibration handlers */
 	priv->rx_handlers[CALIBRATION_RES_NOTIFICATION] =
 					iwlagn_rx_calib_result;
-	priv->rx_handlers[CALIBRATION_COMPLETE_NOTIFICATION] =
-					iwlagn_rx_calib_complete;
 	priv->rx_handlers[REPLY_TX] = iwlagn_rx_reply_tx;
 
 	/* set up notification wait support */
@@ -2256,34 +2254,44 @@ int iwl_dump_fh(struct iwl_priv *priv, char **buf, bool display)
 /* notification wait support */
 void iwlagn_init_notification_wait(struct iwl_priv *priv,
 				   struct iwl_notification_wait *wait_entry,
+				   u8 cmd,
 				   void (*fn)(struct iwl_priv *priv,
-					      struct iwl_rx_packet *pkt),
-				   u8 cmd)
+					      struct iwl_rx_packet *pkt,
+					      void *data),
+				   void *fn_data)
 {
 	wait_entry->fn = fn;
+	wait_entry->fn_data = fn_data;
 	wait_entry->cmd = cmd;
 	wait_entry->triggered = false;
+	wait_entry->aborted = false;
 
 	spin_lock_bh(&priv->_agn.notif_wait_lock);
 	list_add(&wait_entry->list, &priv->_agn.notif_waits);
 	spin_unlock_bh(&priv->_agn.notif_wait_lock);
 }
 
-signed long iwlagn_wait_notification(struct iwl_priv *priv,
-				     struct iwl_notification_wait *wait_entry,
-				     unsigned long timeout)
+int iwlagn_wait_notification(struct iwl_priv *priv,
+			     struct iwl_notification_wait *wait_entry,
+			     unsigned long timeout)
 {
 	int ret;
 
 	ret = wait_event_timeout(priv->_agn.notif_waitq,
-				 wait_entry->triggered,
+				 wait_entry->triggered || wait_entry->aborted,
 				 timeout);
 
 	spin_lock_bh(&priv->_agn.notif_wait_lock);
 	list_del(&wait_entry->list);
 	spin_unlock_bh(&priv->_agn.notif_wait_lock);
 
-	return ret;
+	if (wait_entry->aborted)
+		return -EIO;
+
+	/* return value is always >= 0 */
+	if (ret <= 0)
+		return -ETIMEDOUT;
+	return 0;
 }
 
 void iwlagn_remove_notification(struct iwl_priv *priv,
@@ -2293,3 +2301,78 @@ void iwlagn_remove_notification(struct iwl_priv *priv,
 	list_del(&wait_entry->list);
 	spin_unlock_bh(&priv->_agn.notif_wait_lock);
 }
+
+int iwlagn_start_device(struct iwl_priv *priv)
+{
+	int ret;
+
+	if (iwl_prepare_card_hw(priv)) {
+		IWL_WARN(priv, "Exit HW not ready\n");
+		return -EIO;
+	}
+
+	/* If platform's RF_KILL switch is NOT set to KILL */
+	if (iwl_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 (iwl_is_rfkill(priv)) {
+		wiphy_rfkill_set_hw_state(priv->hw->wiphy, true);
+		iwl_enable_interrupts(priv);
+		return -ERFKILL;
+	}
+
+	iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
+
+	ret = iwlagn_hw_nic_init(priv);
+	if (ret) {
+		IWL_ERR(priv, "Unable to init nic\n");
+		return ret;
+	}
+
+	/* make sure rfkill handshake bits are cleared */
+	iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+	iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
+		    CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
+
+	/* clear (again), then enable host interrupts */
+	iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
+	iwl_enable_interrupts(priv);
+
+	/* really make sure rfkill handshake bits are cleared */
+	iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+	iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+
+	return 0;
+}
+
+void iwlagn_stop_device(struct iwl_priv *priv)
+{
+	unsigned long flags;
+
+	/* stop and reset the on-board processor */
+	iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
+
+	/* tell the device to stop sending interrupts */
+	spin_lock_irqsave(&priv->lock, flags);
+	iwl_disable_interrupts(priv);
+	spin_unlock_irqrestore(&priv->lock, flags);
+	iwl_synchronize_irq(priv);
+
+	/* device going down, Stop using ICT table */
+	iwl_disable_ict(priv);
+
+	iwlagn_txq_ctx_stop(priv);
+	iwlagn_rxq_stop(priv);
+
+	/* Power-down device's busmaster DMA clocks */
+	iwl_write_prph(priv, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT);
+	udelay(5);
+
+	/* Make sure (redundant) we've released our request to stay awake */
+	iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+
+	/* Stop the device, and put it in low power state */
+	iwl_apm_stop(priv);
+}

drivers/net/wireless/iwlwifi/iwl-agn-rxon.c

@@ -58,8 +58,9 @@ static int iwlagn_disable_pan(struct iwl_priv *priv,
 	u8 old_dev_type = send->dev_type;
 	int ret;
 
-	iwlagn_init_notification_wait(priv, &disable_wait, NULL,
-				      REPLY_WIPAN_DEACTIVATION_COMPLETE);
+	iwlagn_init_notification_wait(priv, &disable_wait,
+				      REPLY_WIPAN_DEACTIVATION_COMPLETE,
+				      NULL, NULL);
 
 	send->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
 	send->dev_type = RXON_DEV_TYPE_P2P;
@@ -72,13 +73,9 @@ static int iwlagn_disable_pan(struct iwl_priv *priv,
 		IWL_ERR(priv, "Error disabling PAN (%d)\n", ret);
 		iwlagn_remove_notification(priv, &disable_wait);
 	} else {
-		signed long wait_res;
-
-		wait_res = iwlagn_wait_notification(priv, &disable_wait, HZ);
-		if (wait_res == 0) {
+		ret = iwlagn_wait_notification(priv, &disable_wait, HZ);
+		if (ret)
 			IWL_ERR(priv, "Timed out waiting for PAN disable\n");
-			ret = -EIO;
-		}
 	}
 
 	return ret;

drivers/net/wireless/iwlwifi/iwl-agn-ucode.c

@@ -161,47 +161,19 @@ static int iwlagn_load_section(struct iwl_priv *priv, const char *name,
 }
 
 static int iwlagn_load_given_ucode(struct iwl_priv *priv,
-		struct fw_desc *inst_image,
-		struct fw_desc *data_image)
+				   struct fw_img *image)
 {
 	int ret = 0;
 
-	ret = iwlagn_load_section(priv, "INST", inst_image,
+	ret = iwlagn_load_section(priv, "INST", &image->code,
 				   IWLAGN_RTC_INST_LOWER_BOUND);
 	if (ret)
 		return ret;
 
-	return iwlagn_load_section(priv, "DATA", data_image,
+	return iwlagn_load_section(priv, "DATA", &image->data,
 				    IWLAGN_RTC_DATA_LOWER_BOUND);
 }
 
-int iwlagn_load_ucode(struct iwl_priv *priv)
-{
-	int ret = 0;
-
-	/* check whether init ucode should be loaded, or rather runtime ucode */
-	if (priv->ucode_init.len && (priv->ucode_type == UCODE_NONE)) {
-		IWL_DEBUG_INFO(priv, "Init ucode found. Loading init ucode...\n");
-		ret = iwlagn_load_given_ucode(priv,
-			&priv->ucode_init, &priv->ucode_init_data);
-		if (!ret) {
-			IWL_DEBUG_INFO(priv, "Init ucode load complete.\n");
-			priv->ucode_type = UCODE_INIT;
-		}
-	} else {
-		IWL_DEBUG_INFO(priv, "Init ucode not found, or already loaded. "
-			"Loading runtime ucode...\n");
-		ret = iwlagn_load_given_ucode(priv,
-			&priv->ucode_code, &priv->ucode_data);
-		if (!ret) {
-			IWL_DEBUG_INFO(priv, "Runtime ucode load complete.\n");
-			priv->ucode_type = UCODE_RT;
-		}
-	}
-
-	return ret;
-}
-
 /*
  *  Calibration
  */
@@ -297,33 +269,9 @@ void iwlagn_rx_calib_result(struct iwl_priv *priv,
 	iwl_calib_set(&priv->calib_results[index], pkt->u.raw, len);
 }
 
-void iwlagn_rx_calib_complete(struct iwl_priv *priv,
-			       struct iwl_rx_mem_buffer *rxb)
+static int iwlagn_init_alive_start(struct iwl_priv *priv)
 {
-	IWL_DEBUG_INFO(priv, "Init. calibration is completed, restarting fw.\n");
-	queue_work(priv->workqueue, &priv->restart);
-}
-
-void iwlagn_init_alive_start(struct iwl_priv *priv)
-{
-	int ret = 0;
-
-	/* initialize uCode was loaded... verify inst image.
-	 * This is a paranoid check, because we would not have gotten the
-	 * "initialize" alive if code weren't properly loaded.  */
-	if (iwl_verify_ucode(priv, &priv->ucode_init)) {
-		/* Runtime instruction load was bad;
-		 * take it all the way back down so we can try again */
-		IWL_DEBUG_INFO(priv, "Bad \"initialize\" uCode load.\n");
-		goto restart;
-	}
-
-	ret = iwlagn_alive_notify(priv);
-	if (ret) {
-		IWL_WARN(priv,
-			"Could not complete ALIVE transition: %d\n", ret);
-		goto restart;
-	}
+	int ret;
 
 	if (priv->cfg->bt_params &&
 	    priv->cfg->bt_params->advanced_bt_coexist) {
@@ -333,24 +281,25 @@ void iwlagn_init_alive_start(struct iwl_priv *priv)
 		 * no need to close the envlope since we are going
 		 * to load the runtime uCode later.
 		 */
-		iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
+		ret = iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
 			BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
+		if (ret)
+			return ret;
 
 	}
-	iwlagn_send_calib_cfg(priv);
+
+	ret = iwlagn_send_calib_cfg(priv);
+	if (ret)
+		return ret;
 
 	/**
 	 * temperature offset calibration is only needed for runtime ucode,
 	 * so prepare the value now.
 	 */
 	if (priv->cfg->need_temp_offset_calib)
-		iwlagn_set_temperature_offset_calib(priv);
-
-	return;
+		return iwlagn_set_temperature_offset_calib(priv);
 
-restart:
-	/* real restart (first load init_ucode) */
-	queue_work(priv->workqueue, &priv->restart);
+	return 0;
 }
 
 static int iwlagn_send_wimax_coex(struct iwl_priv *priv)
@@ -413,19 +362,22 @@ void iwlagn_send_prio_tbl(struct iwl_priv *priv)
 		IWL_ERR(priv, "failed to send BT prio tbl command\n");
 }
 
-void iwlagn_send_bt_env(struct iwl_priv *priv, u8 action, u8 type)
+int iwlagn_send_bt_env(struct iwl_priv *priv, u8 action, u8 type)
 {
 	struct iwl_bt_coex_prot_env_cmd env_cmd;
+	int ret;
 
 	env_cmd.action = action;
 	env_cmd.type = type;
-	if (iwl_send_cmd_pdu(priv, REPLY_BT_COEX_PROT_ENV,
-			     sizeof(env_cmd), &env_cmd))
+	ret = iwl_send_cmd_pdu(priv, REPLY_BT_COEX_PROT_ENV,
+			       sizeof(env_cmd), &env_cmd);
+	if (ret)
 		IWL_ERR(priv, "failed to send BT env command\n");
+	return ret;
 }
 
 
-int iwlagn_alive_notify(struct iwl_priv *priv)
+static int iwlagn_alive_notify(struct iwl_priv *priv)
 {
 	const struct queue_to_fifo_ac *queue_to_fifo;
 	struct iwl_rxon_context *ctx;
@@ -604,15 +556,164 @@ static void iwl_print_mismatch_inst(struct iwl_priv *priv,
  * iwl_verify_ucode - determine which instruction image is in SRAM,
  *    and verify its contents
  */
-int iwl_verify_ucode(struct iwl_priv *priv, struct fw_desc *fw_desc)
+static int iwl_verify_ucode(struct iwl_priv *priv, struct fw_img *img)
 {
-	if (!iwlcore_verify_inst_sparse(priv, fw_desc)) {
+	if (!iwlcore_verify_inst_sparse(priv, &img->code)) {
 		IWL_DEBUG_INFO(priv, "uCode is good in inst SRAM\n");
 		return 0;
 	}
 
 	IWL_ERR(priv, "UCODE IMAGE IN INSTRUCTION SRAM NOT VALID!!\n");
 
-	iwl_print_mismatch_inst(priv, fw_desc);
+	iwl_print_mismatch_inst(priv, &img->code);
 	return -EIO;
 }
+
+struct iwlagn_alive_data {
+	bool valid;
+	u8 subtype;
+};
+
+static void iwlagn_alive_fn(struct iwl_priv *priv,
+			    struct iwl_rx_packet *pkt,
+			    void *data)
+{
+	struct iwlagn_alive_data *alive_data = data;
+	struct iwl_alive_resp *palive;
+
+	palive = &pkt->u.alive_frame;
+
+	IWL_DEBUG_INFO(priv, "Alive ucode status 0x%08X revision "
+		       "0x%01X 0x%01X\n",
+		       palive->is_valid, palive->ver_type,
+		       palive->ver_subtype);
+
+	priv->device_pointers.error_event_table =
+		le32_to_cpu(palive->error_event_table_ptr);
+	priv->device_pointers.log_event_table =
+		le32_to_cpu(palive->log_event_table_ptr);
+
+	alive_data->subtype = palive->ver_subtype;
+	alive_data->valid = palive->is_valid == UCODE_VALID_OK;
+}
+
+#define UCODE_ALIVE_TIMEOUT	HZ
+#define UCODE_CALIB_TIMEOUT	(2*HZ)
+
+int iwlagn_load_ucode_wait_alive(struct iwl_priv *priv,
+				 struct fw_img *image,
+				 int subtype, int alternate_subtype)
+{
+	struct iwl_notification_wait alive_wait;
+	struct iwlagn_alive_data alive_data;
+	int ret;
+	enum iwlagn_ucode_subtype old_type;
+
+	ret = iwlagn_start_device(priv);
+	if (ret)
+		return ret;
+
+	iwlagn_init_notification_wait(priv, &alive_wait, REPLY_ALIVE,
+				      iwlagn_alive_fn, &alive_data);
+
+	old_type = priv->ucode_type;
+	priv->ucode_type = subtype;
+
+	ret = iwlagn_load_given_ucode(priv, image);
+	if (ret) {
+		priv->ucode_type = old_type;
+		iwlagn_remove_notification(priv, &alive_wait);
+		return ret;
+	}
+
+	/* Remove all resets to allow NIC to operate */
+	iwl_write32(priv, CSR_RESET, 0);
+
+	/*
+	 * Some things may run in the background now, but we
+	 * just wait for the ALIVE notification here.
+	 */
+	ret = iwlagn_wait_notification(priv, &alive_wait, UCODE_ALIVE_TIMEOUT);
+	if (ret) {
+		priv->ucode_type = old_type;
+		return ret;
+	}
+
+	if (!alive_data.valid) {
+		IWL_ERR(priv, "Loaded ucode is not valid!\n");
+		priv->ucode_type = old_type;
+		return -EIO;
+	}
+
+	if (alive_data.subtype != subtype &&
+	    alive_data.subtype != alternate_subtype) {
+		IWL_ERR(priv,
+			"Loaded ucode is not expected type (got %d, expected %d)!\n",
+			alive_data.subtype, subtype);
+		priv->ucode_type = old_type;
+		return -EIO;
+	}
+
+	ret = iwl_verify_ucode(priv, image);
+	if (ret) {
+		priv->ucode_type = old_type;
+		return ret;
+	}
+
+	/* delay a bit to give rfkill time to run */
+	msleep(5);
+
+	ret = iwlagn_alive_notify(priv);
+	if (ret) {
+		IWL_WARN(priv,
+			"Could not complete ALIVE transition: %d\n", ret);
+		priv->ucode_type = old_type;
+		return ret;
+	}
+
+	return 0;
+}
+
+int iwlagn_run_init_ucode(struct iwl_priv *priv)
+{
+	struct iwl_notification_wait calib_wait;
+	int ret;
+
+	lockdep_assert_held(&priv->mutex);
+
+	/* No init ucode required? Curious, but maybe ok */
+	if (!priv->ucode_init.code.len)
+		return 0;
+
+	if (priv->ucode_type != UCODE_SUBTYPE_NONE_LOADED)
+		return 0;
+
+	iwlagn_init_notification_wait(priv, &calib_wait,
+				      CALIBRATION_COMPLETE_NOTIFICATION,
+				      NULL, NULL);
+
+	/* Will also start the device */
+	ret = iwlagn_load_ucode_wait_alive(priv, &priv->ucode_init,
+					   UCODE_SUBTYPE_INIT, -1);
+	if (ret)
+		goto error;
+
+	ret = iwlagn_init_alive_start(priv);
+	if (ret)
+		goto error;
+
+	/*
+	 * Some things may run in the background now, but we
+	 * just wait for the calibration complete notification.
+	 */
+	ret = iwlagn_wait_notification(priv, &calib_wait, UCODE_CALIB_TIMEOUT);
+
+	goto out;
+
+ error:
+	iwlagn_remove_notification(priv, &calib_wait);
+ out:
+	/* Whatever happened, stop the device */
+	iwlagn_stop_device(priv);
+	return ret;
+}

drivers/net/wireless/iwlwifi/iwl-agn.h

@@ -120,6 +120,19 @@ int iwl_alloc_isr_ict(struct iwl_priv *priv);
 void iwl_free_isr_ict(struct iwl_priv *priv);
 irqreturn_t iwl_isr_ict(int irq, void *data);
 
+/* call this function to flush any scheduled tasklet */
+static inline void iwl_synchronize_irq(struct iwl_priv *priv)
+{
+	/* wait to make sure we flush pending tasklet*/
+	synchronize_irq(priv->pci_dev->irq);
+	tasklet_kill(&priv->irq_tasklet);
+}
+
+int iwl_prepare_card_hw(struct iwl_priv *priv);
+
+int iwlagn_start_device(struct iwl_priv *priv);
+void iwlagn_stop_device(struct iwl_priv *priv);
+
 /* tx queue */
 void iwlagn_set_wr_ptrs(struct iwl_priv *priv,
 		     int txq_id, u32 index);
@@ -145,16 +158,14 @@ void iwlagn_bss_info_changed(struct ieee80211_hw *hw,
 			     u32 changes);
 
 /* uCode */
-int iwlagn_load_ucode(struct iwl_priv *priv);
 void iwlagn_rx_calib_result(struct iwl_priv *priv,
 			 struct iwl_rx_mem_buffer *rxb);
-void iwlagn_rx_calib_complete(struct iwl_priv *priv,
-			   struct iwl_rx_mem_buffer *rxb);
-void iwlagn_init_alive_start(struct iwl_priv *priv);
-int iwlagn_alive_notify(struct iwl_priv *priv);
-int iwl_verify_ucode(struct iwl_priv *priv, struct fw_desc *fw_desc);
-void iwlagn_send_bt_env(struct iwl_priv *priv, u8 action, u8 type);
+int iwlagn_send_bt_env(struct iwl_priv *priv, u8 action, u8 type);
 void iwlagn_send_prio_tbl(struct iwl_priv *priv);
+int iwlagn_run_init_ucode(struct iwl_priv *priv);
+int iwlagn_load_ucode_wait_alive(struct iwl_priv *priv,
+				 struct fw_img *image,
+				 int subtype, int alternate_subtype);
 
 /* lib */
 void iwl_check_abort_status(struct iwl_priv *priv,
@@ -325,10 +336,12 @@ void iwlcore_eeprom_release_semaphore(struct iwl_priv *priv);
 void __acquires(wait_entry)
 iwlagn_init_notification_wait(struct iwl_priv *priv,
 			      struct iwl_notification_wait *wait_entry,
+			      u8 cmd,
 			      void (*fn)(struct iwl_priv *priv,
-					 struct iwl_rx_packet *pkt),
-			      u8 cmd);
-signed long __releases(wait_entry)
+					 struct iwl_rx_packet *pkt,
+					 void *data),
+			      void *fn_data);
+int __must_check __releases(wait_entry)
 iwlagn_wait_notification(struct iwl_priv *priv,
 			 struct iwl_notification_wait *wait_entry,
 			 unsigned long timeout);

drivers/net/wireless/iwlwifi/iwl-commands.h

@@ -386,7 +386,18 @@ struct iwl_tx_ant_config_cmd {
  *****************************************************************************/
 
 #define UCODE_VALID_OK	cpu_to_le32(0x1)
-#define INITIALIZE_SUBTYPE    (9)
+
+enum iwlagn_ucode_subtype {
+	UCODE_SUBTYPE_REGULAR	= 0,
+	UCODE_SUBTYPE_REGULAR_NEW = 1,
+	UCODE_SUBTYPE_INIT	= 9,
+
+	/*
+	 * Not a valid subtype, the ucode has just a u8, so
+	 * we can use something > 0xff for this value.
+	 */
+	UCODE_SUBTYPE_NONE_LOADED = 0x100,
+};
 
 /**
  * REPLY_ALIVE = 0x1 (response only, not a command)
@@ -422,49 +433,61 @@ struct iwl_tx_ant_config_cmd {
  *
  * 2)  error_event_table_ptr indicates base of the error log.  This contains
  *     information about any uCode error that occurs.  For agn, the format
- *     of the error log is:
- *
- *	__le32 valid;        (nonzero) valid, (0) log is empty
- *	__le32 error_id;     type of error
- *	__le32 pc;           program counter
- *	__le32 blink1;       branch link
- *	__le32 blink2;       branch link
- *	__le32 ilink1;       interrupt link
- *	__le32 ilink2;       interrupt link
- *	__le32 data1;        error-specific data
- *	__le32 data2;        error-specific data
- *	__le32 line;         source code line of error
- *	__le32 bcon_time;    beacon timer
- *	__le32 tsf_low;      network timestamp function timer
- *	__le32 tsf_hi;       network timestamp function timer
- *	__le32 gp1;          GP1 timer register
- *	__le32 gp2;          GP2 timer register
- *	__le32 gp3;          GP3 timer register
- *	__le32 ucode_ver;    uCode version
- *	__le32 hw_ver;       HW Silicon version
- *	__le32 brd_ver;      HW board version
- *	__le32 log_pc;       log program counter
- *	__le32 frame_ptr;    frame pointer
- *	__le32 stack_ptr;    stack pointer
- *	__le32 hcmd;         last host command
- *	__le32 isr0;         isr status register LMPM_NIC_ISR0: rxtx_flag
- *	__le32 isr1;         isr status register LMPM_NIC_ISR1: host_flag
- *	__le32 isr2;         isr status register LMPM_NIC_ISR2: enc_flag
- *	__le32 isr3;         isr status register LMPM_NIC_ISR3: time_flag
- *	__le32 isr4;         isr status register LMPM_NIC_ISR4: wico interrupt
- *	__le32 isr_pref;     isr status register LMPM_NIC_PREF_STAT
- *	__le32 wait_event;   wait event() caller address
- *	__le32 l2p_control;  L2pControlField
- *	__le32 l2p_duration; L2pDurationField
- *	__le32 l2p_mhvalid;  L2pMhValidBits
- *	__le32 l2p_addr_match; L2pAddrMatchStat
- *	__le32 lmpm_pmg_sel; indicate which clocks are turned on (LMPM_PMG_SEL)
- *	__le32 u_timestamp;  indicate when the date and time of the compilation
- *	__le32 reserved;
+ *     of the error log is defined by struct iwl_error_event_table.
  *
  * The Linux driver can print both logs to the system log when a uCode error
  * occurs.
  */
+
+/*
+ * Note: This structure is read from the device with IO accesses,
+ * and the reading already does the endian conversion. As it is
+ * read with u32-sized accesses, any members with a different size
+ * need to be ordered correctly though!
+ */
+struct iwl_error_event_table {
+	u32 valid;		/* (nonzero) valid, (0) log is empty */
+	u32 error_id;		/* type of error */
+	u32 pc;			/* program counter */
+	u32 blink1;		/* branch link */
+	u32 blink2;		/* branch link */
+	u32 ilink1;		/* interrupt link */
+	u32 ilink2;		/* interrupt link */
+	u32 data1;		/* error-specific data */
+	u32 data2;		/* error-specific data */
+	u32 line;		/* source code line of error */
+	u32 bcon_time;		/* beacon timer */
+	u32 tsf_low;		/* network timestamp function timer */
+	u32 tsf_hi;		/* network timestamp function timer */
+	u32 gp1;		/* GP1 timer register */
+	u32 gp2;		/* GP2 timer register */
+	u32 gp3;		/* GP3 timer register */
+	u32 ucode_ver;		/* uCode version */
+	u32 hw_ver;		/* HW Silicon version */
+	u32 brd_ver;		/* HW board version */
+	u32 log_pc;		/* log program counter */
+	u32 frame_ptr;		/* frame pointer */
+	u32 stack_ptr;		/* stack pointer */
+	u32 hcmd;		/* last host command header */
+#if 0
+	/* no need to read the remainder, we don't use the values */
+	u32 isr0;		/* isr status register LMPM_NIC_ISR0: rxtx_flag */
+	u32 isr1;		/* isr status register LMPM_NIC_ISR1: host_flag */
+	u32 isr2;		/* isr status register LMPM_NIC_ISR2: enc_flag */
+	u32 isr3;		/* isr status register LMPM_NIC_ISR3: time_flag */
+	u32 isr4;		/* isr status register LMPM_NIC_ISR4: wico interrupt */
+	u32 isr_pref;		/* isr status register LMPM_NIC_PREF_STAT */
+	u32 wait_event;		/* wait event() caller address */
+	u32 l2p_control;	/* L2pControlField */
+	u32 l2p_duration;	/* L2pDurationField */
+	u32 l2p_mhvalid;	/* L2pMhValidBits */
+	u32 l2p_addr_match;	/* L2pAddrMatchStat */
+	u32 lmpm_pmg_sel;	/* indicate which clocks are turned on (LMPM_PMG_SEL) */
+	u32 u_timestamp;	/* indicate when the date and time of the compilation */
+	u32 flow_handler;	/* FH read/write pointers, RX credit */
+#endif
+} __packed;
+
 struct iwl_alive_resp {
 	u8 ucode_minor;
 	u8 ucode_major;

drivers/net/wireless/iwlwifi/iwl-core.c

@@ -867,6 +867,19 @@ 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 +891,8 @@ 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);

drivers/net/wireless/iwlwifi/iwl-debugfs.c

@@ -226,10 +226,10 @@ static ssize_t iwl_dbgfs_sram_read(struct file *file,
 	/* default is to dump the entire data segment */
 	if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
 		priv->dbgfs_sram_offset = 0x800000;
-		if (priv->ucode_type == UCODE_INIT)
-			priv->dbgfs_sram_len = priv->ucode_init_data.len;
+		if (priv->ucode_type == UCODE_SUBTYPE_INIT)
+			priv->dbgfs_sram_len = priv->ucode_init.data.len;
 		else
-			priv->dbgfs_sram_len = priv->ucode_data.len;
+			priv->dbgfs_sram_len = priv->ucode_rt.data.len;
 	}
 	len = priv->dbgfs_sram_len;
 

drivers/net/wireless/iwlwifi/iwl-dev.h

@@ -479,6 +479,10 @@ struct fw_desc {
 	u32 len;		/* bytes */
 };
 
+struct fw_img {
+	struct fw_desc code, data;
+};
+
 /* v1/v2 uCode file layout */
 struct iwl_ucode_header {
 	__le32 ver;	/* major/minor/API/serial */
@@ -794,12 +798,6 @@ struct iwl_calib_result {
 	size_t buf_len;
 };
 
-enum ucode_type {
-	UCODE_NONE = 0,
-	UCODE_INIT,
-	UCODE_RT
-};
-
 /* Sensitivity calib data */
 struct iwl_sensitivity_data {
 	u32 auto_corr_ofdm;
@@ -1105,10 +1103,12 @@ struct iwl_force_reset {
 struct iwl_notification_wait {
 	struct list_head list;
 
-	void (*fn)(struct iwl_priv *priv, struct iwl_rx_packet *pkt);
+	void (*fn)(struct iwl_priv *priv, struct iwl_rx_packet *pkt,
+		   void *data);
+	void *fn_data;
 
 	u8 cmd;
-	bool triggered;
+	bool triggered, aborted;
 };
 
 enum iwl_rxon_context_id {
@@ -1270,11 +1270,10 @@ struct iwl_priv {
 	int fw_index;			/* firmware we're trying to load */
 	u32 ucode_ver;			/* version of ucode, copy of
 					   iwl_ucode.ver */
-	struct fw_desc ucode_code;	/* runtime inst */
-	struct fw_desc ucode_data;	/* runtime data original */
-	struct fw_desc ucode_init;	/* initialization inst */
-	struct fw_desc ucode_init_data;	/* initialization data */
-	enum ucode_type ucode_type;
+	struct fw_img ucode_rt;
+	struct fw_img ucode_init;
+
+	enum iwlagn_ucode_subtype ucode_type;
 	u8 ucode_write_complete;	/* the image write is complete */
 	char firmware_name[25];
 
@@ -1472,8 +1471,6 @@ struct iwl_priv {
 
 	struct tasklet_struct irq_tasklet;
 
-	struct delayed_work init_alive_start;
-	struct delayed_work alive_start;
 	struct delayed_work scan_check;
 
 	/* TX Power */
@@ -1506,7 +1503,6 @@ struct iwl_priv {
 	struct timer_list statistics_periodic;
 	struct timer_list ucode_trace;
 	struct timer_list watchdog;
-	bool hw_ready;
 
 	struct iwl_event_log event_log;
 

drivers/net/wireless/iwlwifi/iwl-helpers.h

@@ -64,30 +64,6 @@ static inline int iwl_queue_dec_wrap(int index, int n_bd)
 	return --index & (n_bd - 1);
 }
 
-/* TODO: Move fw_desc functions to iwl-pci.ko */
-static inline void iwl_free_fw_desc(struct pci_dev *pci_dev,
-				    struct fw_desc *desc)
-{
-	if (desc->v_addr)
-		dma_free_coherent(&pci_dev->dev, desc->len,
-				  desc->v_addr, desc->p_addr);
-	desc->v_addr = NULL;
-	desc->len = 0;
-}
-
-static inline int iwl_alloc_fw_desc(struct pci_dev *pci_dev,
-				    struct fw_desc *desc)
-{
-	if (!desc->len) {
-		desc->v_addr = NULL;
-		return -EINVAL;
-	}
-
-	desc->v_addr = dma_alloc_coherent(&pci_dev->dev, desc->len,
-					  &desc->p_addr, GFP_KERNEL);
-	return (desc->v_addr != NULL) ? 0 : -ENOMEM;
-}
-
 /*
  * we have 8 bits used like this:
  *

drivers/net/wireless/iwlwifi/iwl-io.c

@@ -242,20 +242,32 @@ void iwl_clear_bits_prph(struct iwl_priv *priv, u32 reg, u32 mask)
 	spin_unlock_irqrestore(&priv->reg_lock, flags);
 }
 
-u32 iwl_read_targ_mem(struct iwl_priv *priv, u32 addr)
+void _iwl_read_targ_mem_words(struct iwl_priv *priv, u32 addr,
+			      void *buf, int words)
 {
 	unsigned long flags;
-	u32 value;
+	int offs;
+	u32 *vals = buf;
 
 	spin_lock_irqsave(&priv->reg_lock, flags);
 	iwl_grab_nic_access(priv);
 
 	iwl_write32(priv, HBUS_TARG_MEM_RADDR, addr);
 	rmb();
-	value = iwl_read32(priv, HBUS_TARG_MEM_RDAT);
+
+	for (offs = 0; offs < words; offs++)
+		vals[offs] = iwl_read32(priv, HBUS_TARG_MEM_RDAT);
 
 	iwl_release_nic_access(priv);
 	spin_unlock_irqrestore(&priv->reg_lock, flags);
+}
+
+u32 iwl_read_targ_mem(struct iwl_priv *priv, u32 addr)
+{
+	u32 value;
+
+	_iwl_read_targ_mem_words(priv, addr, &value, 1);
+
 	return value;
 }
 

drivers/net/wireless/iwlwifi/iwl-io.h

@@ -76,6 +76,16 @@ void iwl_set_bits_mask_prph(struct iwl_priv *priv, u32 reg,
 			    u32 bits, u32 mask);
 void iwl_clear_bits_prph(struct iwl_priv *priv, u32 reg, u32 mask);
 
+void _iwl_read_targ_mem_words(struct iwl_priv *priv, u32 addr,
+			      void *buf, int words);
+
+#define iwl_read_targ_mem_words(priv, addr, buf, bufsize)	\
+	do {							\
+		BUILD_BUG_ON((bufsize) % sizeof(u32));		\
+		_iwl_read_targ_mem_words(priv, addr, buf,	\
+					 (bufsize) / sizeof(u32));\
+	} while (0)
+
 u32 iwl_read_targ_mem(struct iwl_priv *priv, u32 addr);
 void iwl_write_targ_mem(struct iwl_priv *priv, u32 addr, u32 val);
 #endif

drivers/net/wireless/iwlwifi/iwl-rx.c

@@ -225,55 +225,6 @@ int iwl_rx_queue_alloc(struct iwl_priv *priv)
  *
  ******************************************************************************/
 
-static void iwl_rx_reply_alive(struct iwl_priv *priv,
-			       struct iwl_rx_mem_buffer *rxb)
-{
-	struct iwl_rx_packet *pkt = rxb_addr(rxb);
-	struct iwl_alive_resp *palive;
-	struct delayed_work *pwork;
-
-	palive = &pkt->u.alive_frame;
-
-	IWL_DEBUG_INFO(priv, "Alive ucode status 0x%08X revision "
-		       "0x%01X 0x%01X\n",
-		       palive->is_valid, palive->ver_type,
-		       palive->ver_subtype);
-
-	priv->device_pointers.log_event_table =
-		le32_to_cpu(palive->log_event_table_ptr);
-	priv->device_pointers.error_event_table =
-		le32_to_cpu(palive->error_event_table_ptr);
-
-	if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
-		IWL_DEBUG_INFO(priv, "Initialization Alive received.\n");
-		pwork = &priv->init_alive_start;
-	} else {
-		IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
-		pwork = &priv->alive_start;
-	}
-
-	/* We delay the ALIVE response by 5ms to
-	 * give the HW RF Kill time to activate... */
-	if (palive->is_valid == UCODE_VALID_OK)
-		queue_delayed_work(priv->workqueue, pwork,
-				   msecs_to_jiffies(5));
-	else {
-		IWL_WARN(priv, "%s uCode did not respond OK.\n",
-			(palive->ver_subtype == INITIALIZE_SUBTYPE) ?
-			"init" : "runtime");
-		/*
-		 * If fail to load init uCode,
-		 * let's try to load the init uCode again.
-		 * We should not get into this situation, but if it
-		 * does happen, we should not move on and loading "runtime"
-		 * without proper calibrate the device.
-		 */
-		if (palive->ver_subtype == INITIALIZE_SUBTYPE)
-			priv->ucode_type = UCODE_NONE;
-		queue_work(priv->workqueue, &priv->restart);
-	}
-}
-
 static void iwl_rx_reply_error(struct iwl_priv *priv,
 			       struct iwl_rx_mem_buffer *rxb)
 {
@@ -1125,7 +1076,6 @@ void iwl_setup_rx_handlers(struct iwl_priv *priv)
 
 	handlers = priv->rx_handlers;
 
-	handlers[REPLY_ALIVE]			= iwl_rx_reply_alive;
 	handlers[REPLY_ERROR]			= iwl_rx_reply_error;
 	handlers[CHANNEL_SWITCH_NOTIFICATION]	= iwl_rx_csa;
 	handlers[SPECTRUM_MEASURE_NOTIFICATION]	= iwl_rx_spectrum_measure_notif;