add d80211 from a recent wireless-dev checkout

SVN-Revision: 5939

1 files changed, 117 insertions, 0 deletions

diff --git a/package/d80211/src/ieee80211_dev.c b/package/d80211/src/ieee80211_dev.c
new file mode 100644
index 0000000000..589a7bd01e
--- /dev/null
+++ b/package/d80211/src/ieee80211_dev.c
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/if.h>
+#include <linux/if_ether.h>
+#include <linux/netdevice.h>
+#include <net/d80211.h>
+#include "ieee80211_i.h"
+#include "ieee80211_led.h"
+
+struct ieee80211_dev_list {
+	struct list_head list;
+	int dev_index;
+	struct ieee80211_local *local;
+};
+
+static LIST_HEAD(dev_list);
+static DEFINE_SPINLOCK(dev_list_lock);
+
+
+/* Caller must hold dev_list_lock */
+static struct ieee80211_dev_list *__ieee80211_dev_find(int index)
+{
+	struct ieee80211_dev_list *dev_item;
+
+	list_for_each_entry(dev_item, &dev_list, list) {
+		if (dev_item->dev_index == index)
+			return dev_item;
+	}
+	return NULL;
+}
+
+int ieee80211_dev_alloc_index(struct ieee80211_local *local)
+{
+	struct ieee80211_dev_list *dev_item, *new;
+	int index = 0;
+
+	new = kmalloc(sizeof(struct ieee80211_dev_list), GFP_KERNEL);
+	if (!new)
+		return -ENOMEM;
+	new->local = local;
+	spin_lock(&dev_list_lock);
+	list_for_each_entry(dev_item, &dev_list, list) {
+		if (index < dev_item->dev_index)
+			break;
+		index++;
+	}
+	new->dev_index = index;
+	list_add_tail(&new->list, &dev_item->list);
+	spin_unlock(&dev_list_lock);
+	local->hw.index = index;
+	return index;
+}
+
+void ieee80211_dev_free_index(struct ieee80211_local *local)
+{
+	struct ieee80211_dev_list *dev_item;
+
+	spin_lock(&dev_list_lock);
+	dev_item = __ieee80211_dev_find(local->hw.index);
+	if (dev_item)
+		list_del(&dev_item->list);
+	spin_unlock(&dev_list_lock);
+	if (dev_item)
+		kfree(dev_item);
+	local->hw.index = -1;
+}
+
+struct ieee80211_local *ieee80211_dev_find(int index)
+{
+	struct ieee80211_dev_list *dev_item;
+
+	spin_lock(&dev_list_lock);
+	dev_item = __ieee80211_dev_find(index);
+	spin_unlock(&dev_list_lock);
+	return dev_item ? dev_item->local : NULL;
+}
+
+int ieee80211_dev_find_index(struct ieee80211_local *local)
+{
+	struct ieee80211_dev_list *dev_item;
+	int index = -1;
+
+	spin_lock(&dev_list_lock);
+	list_for_each_entry(dev_item, &dev_list, list) {
+		if (dev_item->local == local) {
+			index = dev_item->dev_index;
+			break;
+		}
+	}
+	spin_unlock(&dev_list_lock);
+	return index;
+}
+
+struct ieee80211_local *ieee80211_dev_alloc(gfp_t flags)
+{
+	struct ieee80211_local *local;
+
+	local = kzalloc(sizeof(struct ieee80211_local), flags);
+	if (!local)
+		return NULL;
+	local->hw.index = -1;
+	ieee80211_dev_sysfs_init(local);
+	return local;
+}
+
+void ieee80211_dev_free(struct ieee80211_local *local)
+{
+	ieee80211_dev_sysfs_put(local);
+}