X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fnet%2Fwireless%2Fipw2100.c;h=b85857a848706fcde3c25d251fac7d280aea9201;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=e955db435b30b4ef9e2c87106790ada253582fa6;hpb=16c70f8c1b54b61c3b951b6fb220df250fe09b32;p=linux-2.6.git

diff --git a/drivers/net/wireless/ipw2100.c b/drivers/net/wireless/ipw2100.c
index e955db435..b85857a84 100644
--- a/drivers/net/wireless/ipw2100.c
+++ b/drivers/net/wireless/ipw2100.c
@@ -150,7 +150,6 @@ that only one external action is invoked at a time.
 #include <linux/skbuff.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
-#define __KERNEL_SYSCALLS__
 #include <linux/fs.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
@@ -163,6 +162,7 @@ that only one external action is invoked at a time.
 #include <linux/firmware.h>
 #include <linux/acpi.h>
 #include <linux/ctype.h>
+#include <linux/latency.h>
 
 #include "ipw2100.h"
 
@@ -316,7 +316,7 @@ static void ipw2100_release_firmware(struct ipw2100_priv *priv,
 				     struct ipw2100_fw *fw);
 static int ipw2100_ucode_download(struct ipw2100_priv *priv,
 				  struct ipw2100_fw *fw);
-static void ipw2100_wx_event_work(struct ipw2100_priv *priv);
+static void ipw2100_wx_event_work(struct work_struct *work);
 static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device *dev);
 static struct iw_handler_def ipw2100_wx_handler_def;
 
@@ -679,7 +679,8 @@ static void schedule_reset(struct ipw2100_priv *priv)
 			queue_delayed_work(priv->workqueue, &priv->reset_work,
 					   priv->reset_backoff * HZ);
 		else
-			queue_work(priv->workqueue, &priv->reset_work);
+			queue_delayed_work(priv->workqueue, &priv->reset_work,
+					   0);
 
 		if (priv->reset_backoff < MAX_RESET_BACKOFF)
 			priv->reset_backoff++;
@@ -1697,6 +1698,11 @@ static int ipw2100_up(struct ipw2100_priv *priv, int deferred)
 		return 0;
 	}
 
+	/* the ipw2100 hardware really doesn't want power management delays
+	 * longer than 175usec
+	 */
+	modify_acceptable_latency("ipw2100", 175);
+
 	/* If the interrupt is enabled, turn it off... */
 	spin_lock_irqsave(&priv->low_lock, flags);
 	ipw2100_disable_interrupts(priv);
@@ -1849,6 +1855,8 @@ static void ipw2100_down(struct ipw2100_priv *priv)
 	ipw2100_disable_interrupts(priv);
 	spin_unlock_irqrestore(&priv->low_lock, flags);
 
+	modify_acceptable_latency("ipw2100", INFINITE_LATENCY);
+
 #ifdef ACPI_CSTATE_LIMIT_DEFINED
 	if (priv->config & CFG_C3_DISABLED) {
 		IPW_DEBUG_INFO(": Resetting C3 transitions.\n");
@@ -1866,8 +1874,10 @@ static void ipw2100_down(struct ipw2100_priv *priv)
 	netif_stop_queue(priv->net_dev);
 }
 
-static void ipw2100_reset_adapter(struct ipw2100_priv *priv)
+static void ipw2100_reset_adapter(struct work_struct *work)
 {
+	struct ipw2100_priv *priv =
+		container_of(work, struct ipw2100_priv, reset_work.work);
 	unsigned long flags;
 	union iwreq_data wrqu = {
 		.ap_addr = {
@@ -2064,9 +2074,9 @@ static void isr_indicate_association_lost(struct ipw2100_priv *priv, u32 status)
 		return;
 
 	if (priv->status & STATUS_SECURITY_UPDATED)
-		queue_work(priv->workqueue, &priv->security_work);
+		queue_delayed_work(priv->workqueue, &priv->security_work, 0);
 
-	queue_work(priv->workqueue, &priv->wx_event_work);
+	queue_delayed_work(priv->workqueue, &priv->wx_event_work, 0);
 }
 
 static void isr_indicate_rf_kill(struct ipw2100_priv *priv, u32 status)
@@ -2236,7 +2246,7 @@ static int ipw2100_snapshot_alloc(struct ipw2100_priv *priv)
 	if (priv->snapshot[0])
 		return 1;
 	for (i = 0; i < 0x30; i++) {
-		priv->snapshot[i] = (u8 *) kmalloc(0x1000, GFP_ATOMIC);
+		priv->snapshot[i] = kmalloc(0x1000, GFP_ATOMIC);
 		if (!priv->snapshot[i]) {
 			IPW_DEBUG_INFO("%s: Error allocating snapshot "
 				       "buffer %d\n", priv->net_dev->name, i);
@@ -2654,7 +2664,7 @@ static void __ipw2100_rx_process(struct ipw2100_priv *priv)
 				break;
 			}
 #endif
-			if (stats.len < sizeof(u->rx_data.header))
+			if (stats.len < sizeof(struct ieee80211_hdr_3addr))
 				break;
 			switch (WLAN_FC_GET_TYPE(u->rx_data.header.frame_ctl)) {
 			case IEEE80211_FTYPE_MGMT:
@@ -3248,7 +3258,7 @@ static void ipw2100_irq_tasklet(struct ipw2100_priv *priv)
 	IPW_DEBUG_ISR("exit\n");
 }
 
-static irqreturn_t ipw2100_interrupt(int irq, void *data, struct pt_regs *regs)
+static irqreturn_t ipw2100_interrupt(int irq, void *data)
 {
 	struct ipw2100_priv *priv = data;
 	u32 inta, inta_mask;
@@ -5517,8 +5527,11 @@ static int ipw2100_configure_security(struct ipw2100_priv *priv, int batch_mode)
 	return err;
 }
 
-static void ipw2100_security_work(struct ipw2100_priv *priv)
+static void ipw2100_security_work(struct work_struct *work)
 {
+	struct ipw2100_priv *priv =
+		container_of(work, struct ipw2100_priv, security_work.work);
+
 	/* If we happen to have reconnected before we get a chance to
 	 * process this, then update the security settings--which causes
 	 * a disassociation to occur */
@@ -5741,7 +5754,7 @@ static int ipw2100_set_address(struct net_device *dev, void *p)
 
 	priv->reset_backoff = 0;
 	mutex_unlock(&priv->action_mutex);
-	ipw2100_reset_adapter(priv);
+	ipw2100_reset_adapter(&priv->reset_work.work);
 	return 0;
 
       done:
@@ -5820,19 +5833,6 @@ static void ipw2100_tx_timeout(struct net_device *dev)
 	schedule_reset(priv);
 }
 
-/*
- * TODO: reimplement it so that it reads statistics
- *       from the adapter using ordinal tables
- *       instead of/in addition to collecting them
- *       in the driver
- */
-static struct net_device_stats *ipw2100_stats(struct net_device *dev)
-{
-	struct ipw2100_priv *priv = ieee80211_priv(dev);
-
-	return &priv->ieee->stats;
-}
-
 static int ipw2100_wpa_enable(struct ipw2100_priv *priv, int value)
 {
 	/* This is called when wpa_supplicant loads and closes the driver
@@ -5911,14 +5911,15 @@ static u32 ipw2100_ethtool_get_link(struct net_device *dev)
 	return (priv->status & STATUS_ASSOCIATED) ? 1 : 0;
 }
 
-static struct ethtool_ops ipw2100_ethtool_ops = {
+static const struct ethtool_ops ipw2100_ethtool_ops = {
 	.get_link = ipw2100_ethtool_get_link,
 	.get_drvinfo = ipw_ethtool_get_drvinfo,
 };
 
-static void ipw2100_hang_check(void *adapter)
+static void ipw2100_hang_check(struct work_struct *work)
 {
-	struct ipw2100_priv *priv = adapter;
+	struct ipw2100_priv *priv =
+		container_of(work, struct ipw2100_priv, hang_check.work);
 	unsigned long flags;
 	u32 rtc = 0xa5a5a5a5;
 	u32 len = sizeof(rtc);
@@ -5958,9 +5959,10 @@ static void ipw2100_hang_check(void *adapter)
 	spin_unlock_irqrestore(&priv->low_lock, flags);
 }
 
-static void ipw2100_rf_kill(void *adapter)
+static void ipw2100_rf_kill(struct work_struct *work)
 {
-	struct ipw2100_priv *priv = adapter;
+	struct ipw2100_priv *priv =
+		container_of(work, struct ipw2100_priv, rf_kill.work);
 	unsigned long flags;
 
 	spin_lock_irqsave(&priv->low_lock, flags);
@@ -6015,7 +6017,6 @@ static struct net_device *ipw2100_alloc_device(struct pci_dev *pci_dev,
 	dev->open = ipw2100_open;
 	dev->stop = ipw2100_close;
 	dev->init = ipw2100_net_init;
-	dev->get_stats = ipw2100_stats;
 	dev->ethtool_ops = &ipw2100_ethtool_ops;
 	dev->tx_timeout = ipw2100_tx_timeout;
 	dev->wireless_handlers = &ipw2100_wx_handler_def;
@@ -6110,14 +6111,11 @@ static struct net_device *ipw2100_alloc_device(struct pci_dev *pci_dev,
 
 	priv->workqueue = create_workqueue(DRV_NAME);
 
-	INIT_WORK(&priv->reset_work,
-		  (void (*)(void *))ipw2100_reset_adapter, priv);
-	INIT_WORK(&priv->security_work,
-		  (void (*)(void *))ipw2100_security_work, priv);
-	INIT_WORK(&priv->wx_event_work,
-		  (void (*)(void *))ipw2100_wx_event_work, priv);
-	INIT_WORK(&priv->hang_check, ipw2100_hang_check, priv);
-	INIT_WORK(&priv->rf_kill, ipw2100_rf_kill, priv);
+	INIT_DELAYED_WORK(&priv->reset_work, ipw2100_reset_adapter);
+	INIT_DELAYED_WORK(&priv->security_work, ipw2100_security_work);
+	INIT_DELAYED_WORK(&priv->wx_event_work, ipw2100_wx_event_work);
+	INIT_DELAYED_WORK(&priv->hang_check, ipw2100_hang_check);
+	INIT_DELAYED_WORK(&priv->rf_kill, ipw2100_rf_kill);
 
 	tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
 		     ipw2100_irq_tasklet, (unsigned long)priv);
@@ -6222,7 +6220,7 @@ static int ipw2100_pci_init_one(struct pci_dev *pci_dev,
 	/* Allocate and initialize the Tx/Rx queues and lists */
 	if (ipw2100_queues_allocate(priv)) {
 		printk(KERN_WARNING DRV_NAME
-		       "Error calilng ipw2100_queues_allocate.\n");
+		       "Error calling ipw2100_queues_allocate.\n");
 		err = -ENOMEM;
 		goto fail;
 	}
@@ -6254,19 +6252,22 @@ static int ipw2100_pci_init_one(struct pci_dev *pci_dev,
 	 * member to call a function that then just turns and calls ipw2100_up.
 	 * net_dev->init is called after name allocation but before the
 	 * notifier chain is called */
-	mutex_lock(&priv->action_mutex);
 	err = register_netdev(dev);
 	if (err) {
 		printk(KERN_WARNING DRV_NAME
 		       "Error calling register_netdev.\n");
-		goto fail_unlock;
+		goto fail;
 	}
+
+	mutex_lock(&priv->action_mutex);
 	registered = 1;
 
 	IPW_DEBUG_INFO("%s: Bound to %s\n", dev->name, pci_name(pci_dev));
 
 	/* perform this after register_netdev so that dev->name is set */
-	sysfs_create_group(&pci_dev->dev.kobj, &ipw2100_attribute_group);
+	err = sysfs_create_group(&pci_dev->dev.kobj, &ipw2100_attribute_group);
+	if (err)
+		goto fail_unlock;
 
 	/* If the RF Kill switch is disabled, go ahead and complete the
 	 * startup sequence */
@@ -6413,6 +6414,7 @@ static int ipw2100_resume(struct pci_dev *pci_dev)
 {
 	struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
 	struct net_device *dev = priv->net_dev;
+	int err;
 	u32 val;
 
 	if (IPW2100_PM_DISABLED)
@@ -6423,7 +6425,12 @@ static int ipw2100_resume(struct pci_dev *pci_dev)
 	IPW_DEBUG_INFO("%s: Coming out of suspend...\n", dev->name);
 
 	pci_set_power_state(pci_dev, PCI_D0);
-	pci_enable_device(pci_dev);
+	err = pci_enable_device(pci_dev);
+	if (err) {
+		printk(KERN_ERR "%s: pci_enable_device failed on resume\n",
+		       dev->name);
+		return err;
+	}
 	pci_restore_state(pci_dev);
 
 	/*
@@ -6531,14 +6538,18 @@ static int __init ipw2100_init(void)
 	printk(KERN_INFO DRV_NAME ": %s, %s\n", DRV_DESCRIPTION, DRV_VERSION);
 	printk(KERN_INFO DRV_NAME ": %s\n", DRV_COPYRIGHT);
 
-	ret = pci_module_init(&ipw2100_pci_driver);
+	ret = pci_register_driver(&ipw2100_pci_driver);
+	if (ret)
+		goto out;
 
+	set_acceptable_latency("ipw2100", INFINITE_LATENCY);
 #ifdef CONFIG_IPW2100_DEBUG
 	ipw2100_debug_level = debug;
-	driver_create_file(&ipw2100_pci_driver.driver,
-			   &driver_attr_debug_level);
+	ret = driver_create_file(&ipw2100_pci_driver.driver,
+				 &driver_attr_debug_level);
 #endif
 
+out:
 	return ret;
 }
 
@@ -6553,6 +6564,7 @@ static void __exit ipw2100_exit(void)
 			   &driver_attr_debug_level);
 #endif
 	pci_unregister_driver(&ipw2100_pci_driver);
+	remove_acceptable_latency("ipw2100");
 }
 
 module_init(ipw2100_init);
@@ -6957,7 +6969,7 @@ static int ipw2100_wx_set_essid(struct net_device *dev,
 	}
 
 	if (wrqu->essid.flags && wrqu->essid.length) {
-		length = wrqu->essid.length - 1;
+		length = wrqu->essid.length;
 		essid = extra;
 	}
 
@@ -7050,7 +7062,7 @@ static int ipw2100_wx_get_nick(struct net_device *dev,
 
 	struct ipw2100_priv *priv = ieee80211_priv(dev);
 
-	wrqu->data.length = strlen(priv->nick) + 1;
+	wrqu->data.length = strlen(priv->nick);
 	memcpy(extra, priv->nick, wrqu->data.length);
 	wrqu->data.flags = 1;	/* active */
 
@@ -7342,14 +7354,14 @@ static int ipw2100_wx_set_retry(struct net_device *dev,
 		goto done;
 	}
 
-	if (wrqu->retry.flags & IW_RETRY_MIN) {
+	if (wrqu->retry.flags & IW_RETRY_SHORT) {
 		err = ipw2100_set_short_retry(priv, wrqu->retry.value);
 		IPW_DEBUG_WX("SET Short Retry Limit -> %d \n",
 			     wrqu->retry.value);
 		goto done;
 	}
 
-	if (wrqu->retry.flags & IW_RETRY_MAX) {
+	if (wrqu->retry.flags & IW_RETRY_LONG) {
 		err = ipw2100_set_long_retry(priv, wrqu->retry.value);
 		IPW_DEBUG_WX("SET Long Retry Limit -> %d \n",
 			     wrqu->retry.value);
@@ -7382,14 +7394,14 @@ static int ipw2100_wx_get_retry(struct net_device *dev,
 	if ((wrqu->retry.flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME)
 		return -EINVAL;
 
-	if (wrqu->retry.flags & IW_RETRY_MAX) {
-		wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
+	if (wrqu->retry.flags & IW_RETRY_LONG) {
+		wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
 		wrqu->retry.value = priv->long_retry_limit;
 	} else {
 		wrqu->retry.flags =
 		    (priv->short_retry_limit !=
 		     priv->long_retry_limit) ?
-		    IW_RETRY_LIMIT | IW_RETRY_MIN : IW_RETRY_LIMIT;
+		    IW_RETRY_LIMIT | IW_RETRY_SHORT : IW_RETRY_LIMIT;
 
 		wrqu->retry.value = priv->short_retry_limit;
 	}
@@ -7553,11 +7565,10 @@ static int ipw2100_wx_set_genie(struct net_device *dev,
 		return -EINVAL;
 
 	if (wrqu->data.length) {
-		buf = kmalloc(wrqu->data.length, GFP_KERNEL);
+		buf = kmemdup(extra, wrqu->data.length, GFP_KERNEL);
 		if (buf == NULL)
 			return -ENOMEM;
 
-		memcpy(buf, extra, wrqu->data.length);
 		kfree(ieee->wpa_ie);
 		ieee->wpa_ie = buf;
 		ieee->wpa_ie_len = wrqu->data.length;
@@ -8275,8 +8286,10 @@ static struct iw_handler_def ipw2100_wx_handler_def = {
 	.get_wireless_stats = ipw2100_wx_wireless_stats,
 };
 
-static void ipw2100_wx_event_work(struct ipw2100_priv *priv)
+static void ipw2100_wx_event_work(struct work_struct *work)
 {
+	struct ipw2100_priv *priv =
+		container_of(work, struct ipw2100_priv, wx_event_work.work);
 	union iwreq_data wrqu;
 	int len = ETH_ALEN;