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authorFelix Fietkau <nbd@openwrt.org>2006-12-30 18:47:07 +0000
committerFelix Fietkau <nbd@openwrt.org>2006-12-30 18:47:07 +0000
commit4a0a4aedb6af93af443bd9759712de4ff85f8f7f (patch)
tree763b0951c754a0ece49d14a5453e475a2f673cd0 /package/d80211/src/ieee80211_dev.c
parent1cba5dd6c62f4bed62193562c2b74713302c473f (diff)
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add d80211 from a recent wireless-dev checkout
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@5939 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'package/d80211/src/ieee80211_dev.c')
-rw-r--r--package/d80211/src/ieee80211_dev.c117
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);
+}