Libertas: cfg80211 support

Holger Schurig's patch (https://patchwork.kernel.org/patch/64286/)
is rebased to latest wireless-testing tree.

(Includes patches from me originally posted as "libertas: fix build
error due to undefined symbol" and "libertas: unmangle capability
value". -- JWL)

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Tested-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 4 insertions, 217 deletions

diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c
index abfecc4814b4..51b7e1923ab2 100644
--- a/drivers/net/wireless/libertas/main.c
+++ b/drivers/net/wireless/libertas/main.c
@@ -11,20 +11,14 @@
 #include <linux/if_arp.h>
 #include <linux/kthread.h>
 #include <linux/kfifo.h>
-#include <linux/stddef.h>
-#include <linux/ieee80211.h>
 #include <linux/slab.h>
-#include <net/iw_handler.h>
 #include <net/cfg80211.h>
 
 #include "host.h"
 #include "decl.h"
 #include "dev.h"
-#include "wext.h"
 #include "cfg.h"
 #include "debugfs.h"
-#include "scan.h"
-#include "assoc.h"
 #include "cmd.h"
 
 #define DRIVER_RELEASE_VERSION "323.p0"
@@ -96,72 +90,6 @@ u8 lbs_data_rate_to_fw_index(u32 rate)
 }
 
 
-static int lbs_add_rtap(struct lbs_private *priv);
-static void lbs_remove_rtap(struct lbs_private *priv);
-
-
-/**
- * Get function for sysfs attribute rtap
- */
-static ssize_t lbs_rtap_get(struct device *dev,
-		struct device_attribute *attr, char * buf)
-{
-	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
-	return snprintf(buf, 5, "0x%X\n", priv->monitormode);
-}
-
-/**
- *  Set function for sysfs attribute rtap
- */
-static ssize_t lbs_rtap_set(struct device *dev,
-		struct device_attribute *attr, const char * buf, size_t count)
-{
-	int monitor_mode;
-	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
-
-	sscanf(buf, "%x", &monitor_mode);
-	if (monitor_mode) {
-		if (priv->monitormode == monitor_mode)
-			return strlen(buf);
-		if (!priv->monitormode) {
-			if (priv->infra_open || lbs_mesh_open(priv))
-				return -EBUSY;
-			if (priv->mode == IW_MODE_INFRA)
-				lbs_cmd_80211_deauthenticate(priv,
-							     priv->curbssparams.bssid,
-							     WLAN_REASON_DEAUTH_LEAVING);
-			else if (priv->mode == IW_MODE_ADHOC)
-				lbs_adhoc_stop(priv);
-			lbs_add_rtap(priv);
-		}
-		priv->monitormode = monitor_mode;
-	} else {
-		if (!priv->monitormode)
-			return strlen(buf);
-		priv->monitormode = 0;
-		lbs_remove_rtap(priv);
-
-		if (priv->currenttxskb) {
-			dev_kfree_skb_any(priv->currenttxskb);
-			priv->currenttxskb = NULL;
-		}
-
-		/* Wake queues, command thread, etc. */
-		lbs_host_to_card_done(priv);
-	}
-
-	lbs_prepare_and_send_command(priv,
-			CMD_802_11_MONITOR_MODE, CMD_ACT_SET,
-			CMD_OPTION_WAITFORRSP, 0, &priv->monitormode);
-	return strlen(buf);
-}
-
-/**
- * lbs_rtap attribute to be exported per ethX interface
- * through sysfs (/sys/class/net/ethX/lbs_rtap)
- */
-static DEVICE_ATTR(lbs_rtap, 0644, lbs_rtap_get, lbs_rtap_set );
-
 /**
  *  @brief This function opens the ethX interface
  *
@@ -177,13 +105,6 @@ static int lbs_dev_open(struct net_device *dev)
 
 	spin_lock_irq(&priv->driver_lock);
 
-	if (priv->monitormode) {
-		ret = -EBUSY;
-		goto out;
-	}
-
-	priv->infra_open = 1;
-
 	if (priv->connect_status == LBS_CONNECTED)
 		netif_carrier_on(dev);
 	else
@@ -191,7 +112,6 @@ static int lbs_dev_open(struct net_device *dev)
 
 	if (!priv->tx_pending_len)
 		netif_wake_queue(dev);
- out:
 
 	spin_unlock_irq(&priv->driver_lock);
 	lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
@@ -211,7 +131,6 @@ static int lbs_eth_stop(struct net_device *dev)
 	lbs_deb_enter(LBS_DEB_NET);
 
 	spin_lock_irq(&priv->driver_lock);
-	priv->infra_open = 0;
 	netif_stop_queue(dev);
 	spin_unlock_irq(&priv->driver_lock);
 
@@ -822,37 +741,16 @@ int lbs_exit_auto_deep_sleep(struct lbs_private *priv)
 
 static int lbs_init_adapter(struct lbs_private *priv)
 {
-	size_t bufsize;
-	int i, ret = 0;
+	int ret;
 
 	lbs_deb_enter(LBS_DEB_MAIN);
 
-	/* Allocate buffer to store the BSSID list */
-	bufsize = MAX_NETWORK_COUNT * sizeof(struct bss_descriptor);
-	priv->networks = kzalloc(bufsize, GFP_KERNEL);
-	if (!priv->networks) {
-		lbs_pr_err("Out of memory allocating beacons\n");
-		ret = -1;
-		goto out;
-	}
-
-	/* Initialize scan result lists */
-	INIT_LIST_HEAD(&priv->network_free_list);
-	INIT_LIST_HEAD(&priv->network_list);
-	for (i = 0; i < MAX_NETWORK_COUNT; i++) {
-		list_add_tail(&priv->networks[i].list,
-			      &priv->network_free_list);
-	}
-
 	memset(priv->current_addr, 0xff, ETH_ALEN);
 
 	priv->connect_status = LBS_DISCONNECTED;
-	priv->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
-	priv->mode = IW_MODE_INFRA;
 	priv->channel = DEFAULT_AD_HOC_CHANNEL;
 	priv->mac_control = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON;
 	priv->radio_on = 1;
-	priv->enablehwauto = 1;
 	priv->psmode = LBS802_11POWERMODECAM;
 	priv->psstate = PS_STATE_FULL_POWER;
 	priv->is_deep_sleep = 0;
@@ -907,8 +805,6 @@ static void lbs_free_adapter(struct lbs_private *priv)
 	kfifo_free(&priv->event_fifo);
 	del_timer(&priv->command_timer);
 	del_timer(&priv->auto_deepsleep_timer);
-	kfree(priv->networks);
-	priv->networks = NULL;
 
 	lbs_deb_leave(LBS_DEB_MAIN);
 }
@@ -945,7 +841,7 @@ struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
 		lbs_pr_err("cfg80211 init failed\n");
 		goto done;
 	}
-	/* TODO? */
+
 	wdev->iftype = NL80211_IFTYPE_STATION;
 	priv = wdev_priv(wdev);
 	priv->wdev = wdev;
@@ -955,7 +851,6 @@ struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
 		goto err_wdev;
 	}
 
-	//TODO? dev = alloc_netdev_mq(0, "wlan%d", ether_setup, IWM_TX_QUEUES);
 	dev = alloc_netdev(0, "wlan%d", ether_setup);
 	if (!dev) {
 		dev_err(dmdev, "no memory for network device instance\n");
@@ -971,20 +866,10 @@ struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
  	dev->netdev_ops = &lbs_netdev_ops;
 	dev->watchdog_timeo = 5 * HZ;
 	dev->ethtool_ops = &lbs_ethtool_ops;
-#ifdef	WIRELESS_EXT
-	dev->wireless_handlers = &lbs_handler_def;
-#endif
 	dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
 
-
-	// TODO: kzalloc + iwm_init_default_profile(iwm, iwm->umac_profile); ??
-
-
 	priv->card = card;
-	priv->infra_open = 0;
-
 
-	priv->rtap_net_dev = NULL;
 	strcpy(dev->name, "wlan%d");
 
 	lbs_deb_thread("Starting main thread...\n");
@@ -996,8 +881,6 @@ struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
 	}
 
 	priv->work_thread = create_singlethread_workqueue("lbs_worker");
-	INIT_DELAYED_WORK(&priv->assoc_work, lbs_association_worker);
-	INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker);
 	INIT_WORK(&priv->mcast_work, lbs_set_mcast_worker);
 
 	priv->wol_criteria = 0xffffffff;
@@ -1031,12 +914,10 @@ void lbs_remove_card(struct lbs_private *priv)
 	lbs_deb_enter(LBS_DEB_MAIN);
 
 	lbs_remove_mesh(priv);
-	lbs_remove_rtap(priv);
+	lbs_scan_deinit(priv);
 
 	dev = priv->dev;
 
-	cancel_delayed_work_sync(&priv->scan_work);
-	cancel_delayed_work_sync(&priv->assoc_work);
 	cancel_work_sync(&priv->mcast_work);
 
 	/* worker thread destruction blocks on the in-flight command which
@@ -1077,7 +958,7 @@ void lbs_remove_card(struct lbs_private *priv)
 EXPORT_SYMBOL_GPL(lbs_remove_card);
 
 
-static int lbs_rtap_supported(struct lbs_private *priv)
+int lbs_rtap_supported(struct lbs_private *priv)
 {
 	if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5)
 		return 1;
@@ -1109,16 +990,6 @@ int lbs_start_card(struct lbs_private *priv)
 
 	lbs_init_mesh(priv);
 
-	/*
-	 * While rtap isn't related to mesh, only mesh-enabled
-	 * firmware implements the rtap functionality via
-	 * CMD_802_11_MONITOR_MODE.
-	 */
-	if (lbs_rtap_supported(priv)) {
-		if (device_create_file(&dev->dev, &dev_attr_lbs_rtap))
-			lbs_pr_err("cannot register lbs_rtap attribute\n");
-	}
-
 	lbs_debugfs_init_one(priv, dev);
 
 	lbs_pr_info("%s: Marvell WLAN 802.11 adapter\n", dev->name);
@@ -1150,9 +1021,6 @@ void lbs_stop_card(struct lbs_private *priv)
 	lbs_debugfs_remove_one(priv);
 	lbs_deinit_mesh(priv);
 
-	if (lbs_rtap_supported(priv))
-		device_remove_file(&dev->dev, &dev_attr_lbs_rtap);
-
 	/* Delete the timeout of the currently processing command */
 	del_timer_sync(&priv->command_timer);
 	del_timer_sync(&priv->auto_deepsleep_timer);
@@ -1239,87 +1107,6 @@ static void __exit lbs_exit_module(void)
 	lbs_deb_leave(LBS_DEB_MAIN);
 }
 
-/*
- * rtap interface support fuctions
- */
-
-static int lbs_rtap_open(struct net_device *dev)
-{
-	/* Yes, _stop_ the queue. Because we don't support injection */
-	lbs_deb_enter(LBS_DEB_MAIN);
-	netif_carrier_off(dev);
-	netif_stop_queue(dev);
-	lbs_deb_leave(LBS_DEB_LEAVE);
-	return 0;
-}
-
-static int lbs_rtap_stop(struct net_device *dev)
-{
-	lbs_deb_enter(LBS_DEB_MAIN);
-	lbs_deb_leave(LBS_DEB_MAIN);
-	return 0;
-}
-
-static netdev_tx_t lbs_rtap_hard_start_xmit(struct sk_buff *skb,
-					    struct net_device *dev)
-{
-	netif_stop_queue(dev);
-	return NETDEV_TX_BUSY;
-}
-
-static void lbs_remove_rtap(struct lbs_private *priv)
-{
-	lbs_deb_enter(LBS_DEB_MAIN);
-	if (priv->rtap_net_dev == NULL)
-		goto out;
-	unregister_netdev(priv->rtap_net_dev);
-	free_netdev(priv->rtap_net_dev);
-	priv->rtap_net_dev = NULL;
-out:
-	lbs_deb_leave(LBS_DEB_MAIN);
-}
-
-static const struct net_device_ops rtap_netdev_ops = {
-	.ndo_open = lbs_rtap_open,
-	.ndo_stop = lbs_rtap_stop,
-	.ndo_start_xmit = lbs_rtap_hard_start_xmit,
-};
-
-static int lbs_add_rtap(struct lbs_private *priv)
-{
-	int ret = 0;
-	struct net_device *rtap_dev;
-
-	lbs_deb_enter(LBS_DEB_MAIN);
-	if (priv->rtap_net_dev) {
-		ret = -EPERM;
-		goto out;
-	}
-
-	rtap_dev = alloc_netdev(0, "rtap%d", ether_setup);
-	if (rtap_dev == NULL) {
-		ret = -ENOMEM;
-		goto out;
-	}
-
-	memcpy(rtap_dev->dev_addr, priv->current_addr, ETH_ALEN);
-	rtap_dev->type = ARPHRD_IEEE80211_RADIOTAP;
-	rtap_dev->netdev_ops = &rtap_netdev_ops;
-	rtap_dev->ml_priv = priv;
-	SET_NETDEV_DEV(rtap_dev, priv->dev->dev.parent);
-
-	ret = register_netdev(rtap_dev);
-	if (ret) {
-		free_netdev(rtap_dev);
-		goto out;
-	}
-	priv->rtap_net_dev = rtap_dev;
-
-out:
-	lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
-	return ret;
-}
-
 module_init(lbs_init_module);
 module_exit(lbs_exit_module);