[MAC80211]: Add mac80211 wireless stack.

Add mac80211, the IEEE 802.11 software MAC layer.

Signed-off-by: Jiri Benc <jbenc@suse.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 91 insertions, 0 deletions

diff --git a/net/mac80211/ieee80211_led.c b/net/mac80211/ieee80211_led.c
new file mode 100644
index 000000000000..719d75b20707
--- /dev/null
+++ b/net/mac80211/ieee80211_led.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2006, Johannes Berg <johannes@sipsolutions.net>
+ *
+ * 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.
+ */
+
+/* just for IFNAMSIZ */
+#include <linux/if.h>
+#include "ieee80211_led.h"
+
+void ieee80211_led_rx(struct ieee80211_local *local)
+{
+        if (unlikely(!local->rx_led))
+                return;
+        if (local->rx_led_counter++ % 2 == 0)
+                led_trigger_event(local->rx_led, LED_OFF);
+        else
+                led_trigger_event(local->rx_led, LED_FULL);
+}
+
+/* q is 1 if a packet was enqueued, 0 if it has been transmitted */
+void ieee80211_led_tx(struct ieee80211_local *local, int q)
+{
+        if (unlikely(!local->tx_led))
+                return;
+        /* not sure how this is supposed to work ... */
+        local->tx_led_counter += 2*q-1;
+        if (local->tx_led_counter % 2 == 0)
+                led_trigger_event(local->tx_led, LED_OFF);
+        else
+                led_trigger_event(local->tx_led, LED_FULL);
+}
+
+void ieee80211_led_init(struct ieee80211_local *local)
+{
+        local->rx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
+        if (!local->rx_led)
+                return;
+        snprintf(local->rx_led_name, sizeof(local->rx_led_name),
+                 "%srx", wiphy_name(local->hw.wiphy));
+        local->rx_led->name = local->rx_led_name;
+        if (led_trigger_register(local->rx_led)) {
+                kfree(local->rx_led);
+                local->rx_led = NULL;
+        }
+
+        local->tx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
+        if (!local->tx_led)
+                return;
+        snprintf(local->tx_led_name, sizeof(local->tx_led_name),
+                 "%stx", wiphy_name(local->hw.wiphy));
+        local->tx_led->name = local->tx_led_name;
+        if (led_trigger_register(local->tx_led)) {
+                kfree(local->tx_led);
+                local->tx_led = NULL;
+        }
+}
+
+void ieee80211_led_exit(struct ieee80211_local *local)
+{
+        if (local->tx_led) {
+                led_trigger_unregister(local->tx_led);
+                kfree(local->tx_led);
+        }
+        if (local->rx_led) {
+                led_trigger_unregister(local->rx_led);
+                kfree(local->rx_led);
+        }
+}
+
+char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw)
+{
+        struct ieee80211_local *local = hw_to_local(hw);
+
+        if (local->tx_led)
+                return local->tx_led_name;
+        return NULL;
+}
+EXPORT_SYMBOL(__ieee80211_get_tx_led_name);
+
+char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw)
+{
+        struct ieee80211_local *local = hw_to_local(hw);
+
+        if (local->rx_led)
+                return local->rx_led_name;
+        return NULL;
+}
+EXPORT_SYMBOL(__ieee80211_get_rx_led_name);