2009-11-26 12:28:35

by Holger Schurig

[permalink] [raw]
Subject: [PATCH] libertas: move scan-related code into scan.c

As libertas + cfg80211 will have it's own scan code, it's nicer
when scan-related code piece don't remain in main.c.

Signed-off-by: Holger Schurig <[email protected]>


--- linux-wl.orig/drivers/net/wireless/libertas/cmd.c
+++ linux-wl/drivers/net/wireless/libertas/cmd.c
@@ -174,11 +174,6 @@ int lbs_update_hw_spec(struct lbs_privat
if (priv->mesh_dev)
memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);

- if (lbs_set_regiontable(priv)) {
- ret = -1;
- goto out;
- }
-
out:
lbs_deb_leave(LBS_DEB_CMD);
return ret;
--- linux-wl.orig/drivers/net/wireless/libertas/scan.c
+++ linux-wl/drivers/net/wireless/libertas/scan.c
@@ -648,7 +648,7 @@ out:
return ret;
}

-void lbs_scan_worker(struct work_struct *work)
+static void lbs_scan_worker(struct work_struct *work)
{
struct lbs_private *priv =
container_of(work, struct lbs_private, scan_work.work);
@@ -1354,3 +1354,74 @@ done:
lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
return ret;
}
+
+
+
+/*
+ * called at lbs_add_card() time
+ *
+ * At this time no firmware command execution has been done, nor is command
+ * execution already possible.
+ *
+ */
+int lbs_scan_alloc(struct lbs_private *priv)
+{
+ int i, ret = 0;
+ size_t bufsize;
+
+ lbs_deb_enter(LBS_DEB_SCAN);
+
+ INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker);
+
+ /* 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 = -ENOMEM;
+ goto done;
+ }
+
+ /* 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);
+ }
+done:
+ lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
+ return ret;
+}
+
+
+/*
+ * called via lbs_start_card(), after lbs_set_regiontable() has been run
+ */
+int lbs_scan_init(struct lbs_private *priv)
+{
+ int ret;
+
+ lbs_deb_enter(LBS_DEB_SCAN);
+
+ ret = lbs_set_regiontable(priv);
+
+ lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
+ return ret;
+}
+
+
+/*
+ * Called at lbs_stop_card() / lbs_remove_card() time.
+ */
+void lbs_scan_deinit(struct lbs_private *priv)
+{
+ lbs_deb_enter(LBS_DEB_SCAN);
+
+ cancel_delayed_work_sync(&priv->scan_work);
+
+ kfree(priv->networks);
+ priv->networks = NULL;
+
+ lbs_deb_leave(LBS_DEB_SCAN);
+}
--- linux-wl.orig/drivers/net/wireless/libertas/scan.h
+++ linux-wl/drivers/net/wireless/libertas/scan.h
@@ -58,6 +58,8 @@ int lbs_set_scan(struct net_device *dev,

int lbs_scan_networks(struct lbs_private *priv, int full_scan);

-void lbs_scan_worker(struct work_struct *work);
+int lbs_scan_alloc(struct lbs_private *priv);
+int lbs_scan_init(struct lbs_private *priv);
+void lbs_scan_deinit(struct lbs_private *priv);

#endif
--- linux-wl.orig/drivers/net/wireless/libertas/main.c
+++ linux-wl/drivers/net/wireless/libertas/main.c
@@ -808,27 +808,13 @@ int lbs_exit_auto_deep_sleep(struct lbs_

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;
+ ret = lbs_scan_alloc(priv);
+ if (ret)
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);

@@ -891,8 +877,6 @@ static void lbs_free_adapter(struct lbs_
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);
}
@@ -981,7 +965,6 @@ struct lbs_private *lbs_add_card(void *c

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;
@@ -1015,10 +998,10 @@ void lbs_remove_card(struct lbs_private

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);

@@ -1084,6 +1067,10 @@ int lbs_start_card(struct lbs_private *p
goto done;
}

+ ret = lbs_scan_init(priv);
+ if (ret)
+ goto done;
+
lbs_update_channel(priv);

lbs_init_mesh(priv);
--- linux-wl.orig/drivers/net/wireless/libertas/cfg.h
+++ linux-wl/drivers/net/wireless/libertas/cfg.h
@@ -10,7 +10,6 @@ void lbs_cfg_free(struct lbs_private *pr
int lbs_send_specific_ssid_scan(struct lbs_private *priv, u8 *ssid,
u8 ssid_len);
int lbs_scan_networks(struct lbs_private *priv, int full_scan);
-void lbs_cfg_scan_worker(struct work_struct *work);


#endif
--- linux-wl.orig/drivers/net/wireless/libertas/dev.h
+++ linux-wl/drivers/net/wireless/libertas/dev.h
@@ -161,6 +161,9 @@ struct lbs_private {

/** Scanning */
struct delayed_work scan_work;
+ struct list_head network_list;
+ struct list_head network_free_list;
+ struct bss_descriptor *networks;
int scan_channel;
/* remember which channel was scanned last, != 0 if currently scanning */
u8 scan_ssid[IEEE80211_MAX_SSID_LEN + 1];
@@ -170,11 +173,8 @@ struct lbs_private {
struct delayed_work assoc_work;
struct current_bss_params curbssparams;
u8 mode;
- struct list_head network_list;
- struct list_head network_free_list;
- struct bss_descriptor *networks;
- struct assoc_request * pending_assoc_req;
- struct assoc_request * in_progress_assoc_req;
+ struct assoc_request *pending_assoc_req;
+ struct assoc_request *in_progress_assoc_req;
uint16_t enablehwauto;

/* ADHOC */

--
http://www.holgerschurig.de