iwlwifi: put all the isr related function under ops

There were two type of isr supported by iwlwifi devices.
  legacy isr - only used by legacy devices (3945 & 4965)
  ict isr - used by all new generation of iwlwifi devices

Move all the isr related functions into ops, the ict type of isr
supports only needed for newer devices.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/Makefile

@@ -11,14 +11,14 @@ CFLAGS_iwl-devtrace.o := -I$(src)
 
 # AGN
 obj-$(CONFIG_IWLAGN)	+= iwlagn.o
-iwlagn-objs		:= iwl-agn.o iwl-agn-rs.o iwl-agn-led.o iwl-agn-ict.o
+iwlagn-objs		:= iwl-agn.o iwl-agn-rs.o iwl-agn-led.o
 iwlagn-objs		+= iwl-agn-ucode.o iwl-agn-tx.o
 iwlagn-objs		+= iwl-agn-lib.o iwl-agn-rx.o iwl-agn-calib.o
 iwlagn-objs		+= iwl-agn-tt.o iwl-agn-sta.o iwl-agn-eeprom.o
 iwlagn-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-agn-debugfs.o
 
 iwlagn-$(CONFIG_IWL4965) += iwl-4965.o
-iwlagn-$(CONFIG_IWL5000) += iwl-agn-rxon.o iwl-agn-hcmd.o
+iwlagn-$(CONFIG_IWL5000) += iwl-agn-rxon.o iwl-agn-hcmd.o iwl-agn-ict.o
 iwlagn-$(CONFIG_IWL5000) += iwl-5000.o
 iwlagn-$(CONFIG_IWL5000) += iwl-6000.o
 iwlagn-$(CONFIG_IWL5000) += iwl-1000.o

drivers/net/wireless/iwlwifi/iwl-1000.c

@@ -211,7 +211,13 @@ static struct iwl_lib_ops iwl1000_lib = {
 		.calib_version	= iwlagn_eeprom_calib_version,
 		.query_addr = iwlagn_eeprom_query_addr,
 	},
+	.isr_ops = {
 		.isr = iwl_isr_ict,
+		.free = iwl_free_isr_ict,
+		.alloc = iwl_alloc_isr_ict,
+		.reset = iwl_reset_ict,
+		.disable = iwl_disable_ict,
+	},
 	.temp_ops = {
 		.temperature = iwlagn_temperature,
 	 },

drivers/net/wireless/iwlwifi/iwl-3945.c

@@ -2727,7 +2727,9 @@ static struct iwl_lib_ops iwl3945_lib = {
 	},
 	.send_tx_power	= iwl3945_send_tx_power,
 	.is_valid_rtc_data_addr = iwl3945_hw_valid_rtc_data_addr,
+	.isr_ops = {
 		.isr = iwl_isr_legacy,
+	},
 	.recover_from_tx_stall = iwl_bg_monitor_recover,
 	.check_plcp_health = iwl3945_good_plcp_health,
 

drivers/net/wireless/iwlwifi/iwl-4965.c

@@ -2561,7 +2561,9 @@ static struct iwl_lib_ops iwl4965_lib = {
 	},
 	.send_tx_power	= iwl4965_send_tx_power,
 	.update_chain_flags = iwl_update_chain_flags,
+	.isr_ops = {
 		.isr = iwl_isr_legacy,
+	},
 	.temp_ops = {
 		.temperature = iwl4965_temperature_calib,
 	},

drivers/net/wireless/iwlwifi/iwl-5000.c

@@ -385,7 +385,13 @@ static struct iwl_lib_ops iwl5000_lib = {
 		.calib_version	= iwlagn_eeprom_calib_version,
 		.query_addr = iwlagn_eeprom_query_addr,
 	},
+	.isr_ops = {
 		.isr = iwl_isr_ict,
+		.free = iwl_free_isr_ict,
+		.alloc = iwl_alloc_isr_ict,
+		.reset = iwl_reset_ict,
+		.disable = iwl_disable_ict,
+	},
 	.temp_ops = {
 		.temperature = iwlagn_temperature,
 	 },
@@ -449,7 +455,13 @@ static struct iwl_lib_ops iwl5150_lib = {
 		.calib_version	= iwlagn_eeprom_calib_version,
 		.query_addr = iwlagn_eeprom_query_addr,
 	},
+	.isr_ops = {
 		.isr = iwl_isr_ict,
+		.free = iwl_free_isr_ict,
+		.alloc = iwl_alloc_isr_ict,
+		.reset = iwl_reset_ict,
+		.disable = iwl_disable_ict,
+	},
 	.temp_ops = {
 		.temperature = iwl5150_temperature,
 	 },

drivers/net/wireless/iwlwifi/iwl-6000.c

@@ -322,7 +322,13 @@ static struct iwl_lib_ops iwl6000_lib = {
 		.query_addr = iwlagn_eeprom_query_addr,
 		.update_enhanced_txpower = iwlcore_eeprom_enhanced_txpower,
 	},
+	.isr_ops = {
 		.isr = iwl_isr_ict,
+		.free = iwl_free_isr_ict,
+		.alloc = iwl_alloc_isr_ict,
+		.reset = iwl_reset_ict,
+		.disable = iwl_disable_ict,
+	},
 	.temp_ops = {
 		.temperature = iwlagn_temperature,
 	 },
@@ -389,7 +395,13 @@ static struct iwl_lib_ops iwl6000g2b_lib = {
 		.query_addr = iwlagn_eeprom_query_addr,
 		.update_enhanced_txpower = iwlcore_eeprom_enhanced_txpower,
 	},
+	.isr_ops = {
 		.isr = iwl_isr_ict,
+		.free = iwl_free_isr_ict,
+		.alloc = iwl_alloc_isr_ict,
+		.reset = iwl_reset_ict,
+		.disable = iwl_disable_ict,
+	},
 	.temp_ops = {
 		.temperature = iwlagn_temperature,
 	 },

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

@@ -2815,7 +2815,8 @@ static void __iwl_down(struct iwl_priv *priv)
 				STATUS_EXIT_PENDING;
 
 	/* device going down, Stop using ICT table */
-	iwl_disable_ict(priv);
+	if (priv->cfg->ops->lib->isr_ops.disable)
+		priv->cfg->ops->lib->isr_ops.disable(priv);
 
 	iwlagn_txq_ctx_stop(priv);
 	iwlagn_rxq_stop(priv);
@@ -3038,7 +3039,8 @@ static void iwl_bg_alive_start(struct work_struct *data)
 		return;
 
 	/* enable dram interrupt */
-	iwl_reset_ict(priv);
+	if (priv->cfg->ops->lib->isr_ops.reset)
+		priv->cfg->ops->lib->isr_ops.reset(priv);
 
 	mutex_lock(&priv->mutex);
 	iwl_alive_start(priv);
@@ -4172,8 +4174,10 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	pci_enable_msi(priv->pci_dev);
 
-	iwl_alloc_isr_ict(priv);
-	err = request_irq(priv->pci_dev->irq, priv->cfg->ops->lib->isr,
+	if (priv->cfg->ops->lib->isr_ops.alloc)
+		priv->cfg->ops->lib->isr_ops.alloc(priv);
+
+	err = request_irq(priv->pci_dev->irq, priv->cfg->ops->lib->isr_ops.isr,
 			  IRQF_SHARED, DRV_NAME, priv);
 	if (err) {
 		IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq);
@@ -4220,7 +4224,8 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	destroy_workqueue(priv->workqueue);
 	priv->workqueue = NULL;
 	free_irq(priv->pci_dev->irq, priv);
-	iwl_free_isr_ict(priv);
+	if (priv->cfg->ops->lib->isr_ops.free)
+		priv->cfg->ops->lib->isr_ops.free(priv);
  out_disable_msi:
 	pci_disable_msi(priv->pci_dev);
 	iwl_uninit_drv(priv);
@@ -4315,7 +4320,8 @@ static void __devexit iwl_pci_remove(struct pci_dev *pdev)
 
 	iwl_uninit_drv(priv);
 
-	iwl_free_isr_ict(priv);
+	if (priv->cfg->ops->lib->isr_ops.free)
+		priv->cfg->ops->lib->isr_ops.free(priv);
 
 	dev_kfree_skb(priv->beacon_skb);
 

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

@@ -120,6 +120,14 @@ struct iwl_apm_ops {
 	void (*config)(struct iwl_priv *priv);
 };
 
+struct iwl_isr_ops {
+	irqreturn_t (*isr) (int irq, void *data);
+	void (*free)(struct iwl_priv *priv);
+	int (*alloc)(struct iwl_priv *priv);
+	int (*reset)(struct iwl_priv *priv);
+	void (*disable)(struct iwl_priv *priv);
+};
+
 struct iwl_debugfs_ops {
 	ssize_t (*rx_stats_read)(struct file *file, char __user *user_buf,
 				 size_t count, loff_t *ppos);
@@ -193,7 +201,9 @@ struct iwl_lib_ops {
 	/* power */
 	int (*send_tx_power) (struct iwl_priv *priv);
 	void (*update_chain_flags)(struct iwl_priv *priv);
-	irqreturn_t (*isr) (int irq, void *data);
+
+	/* isr */
+	struct iwl_isr_ops isr_ops;
 
 	/* eeprom operations (as defined in iwl-eeprom.h) */
 	struct iwl_eeprom_ops eeprom_ops;

drivers/net/wireless/iwlwifi/iwl3945-base.c

@@ -4120,7 +4120,7 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
 
 	pci_enable_msi(priv->pci_dev);
 
-	err = request_irq(priv->pci_dev->irq, priv->cfg->ops->lib->isr,
+	err = request_irq(priv->pci_dev->irq, priv->cfg->ops->lib->isr_ops.isr,
 			  IRQF_SHARED, DRV_NAME, priv);
 	if (err) {
 		IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq);