openwrt-xburst/package/mac80211/patches/310-mac80211_tpt_led.patch

--- a/net/mac80211/led.c
+++ b/net/mac80211/led.c
@@ -54,12 +54,22 @@ void ieee80211_led_radio(struct ieee8021
 		led_trigger_event(local->radio_led, LED_OFF);
 }
 
+void ieee80211_led_names(struct ieee80211_local *local)
+{
+	snprintf(local->rx_led_name, sizeof(local->rx_led_name),
+		 "%srx", wiphy_name(local->hw.wiphy));
+	snprintf(local->tx_led_name, sizeof(local->tx_led_name),
+		 "%stx", wiphy_name(local->hw.wiphy));
+	snprintf(local->assoc_led_name, sizeof(local->assoc_led_name),
+		 "%sassoc", wiphy_name(local->hw.wiphy));
+	snprintf(local->radio_led_name, sizeof(local->radio_led_name),
+		 "%sradio", wiphy_name(local->hw.wiphy));
+}
+
 void ieee80211_led_init(struct ieee80211_local *local)
 {
 	local->rx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
 	if (local->rx_led) {
-		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);
@@ -69,8 +79,6 @@ void ieee80211_led_init(struct ieee80211
 
 	local->tx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
 	if (local->tx_led) {
-		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);
@@ -80,8 +88,6 @@ void ieee80211_led_init(struct ieee80211
 
 	local->assoc_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
 	if (local->assoc_led) {
-		snprintf(local->assoc_led_name, sizeof(local->assoc_led_name),
-			 "%sassoc", wiphy_name(local->hw.wiphy));
 		local->assoc_led->name = local->assoc_led_name;
 		if (led_trigger_register(local->assoc_led)) {
 			kfree(local->assoc_led);
@@ -91,14 +97,19 @@ void ieee80211_led_init(struct ieee80211
 
 	local->radio_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
 	if (local->radio_led) {
-		snprintf(local->radio_led_name, sizeof(local->radio_led_name),
-			 "%sradio", wiphy_name(local->hw.wiphy));
 		local->radio_led->name = local->radio_led_name;
 		if (led_trigger_register(local->radio_led)) {
 			kfree(local->radio_led);
 			local->radio_led = NULL;
 		}
 	}
+
+	if (local->tpt_led_trigger) {
+		if (led_trigger_register(&local->tpt_led_trigger->trig)) {
+			kfree(local->tpt_led_trigger);
+			local->tpt_led_trigger = NULL;
+		}
+	}
 }
 
 void ieee80211_led_exit(struct ieee80211_local *local)
@@ -119,15 +130,18 @@ void ieee80211_led_exit(struct ieee80211
 		led_trigger_unregister(local->rx_led);
 		kfree(local->rx_led);
 	}
+
+	if (local->tpt_led_trigger) {
+		led_trigger_unregister(&local->tpt_led_trigger->trig);
+		kfree(local->tpt_led_trigger);
+	}
 }
 
 char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 
-	if (local->radio_led)
-		return local->radio_led_name;
-	return NULL;
+	return local->radio_led_name;
 }
 EXPORT_SYMBOL(__ieee80211_get_radio_led_name);
 
@@ -135,9 +149,7 @@ char *__ieee80211_get_assoc_led_name(str
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 
-	if (local->assoc_led)
-		return local->assoc_led_name;
-	return NULL;
+	return local->assoc_led_name;
 }
 EXPORT_SYMBOL(__ieee80211_get_assoc_led_name);
 
@@ -145,9 +157,7 @@ char *__ieee80211_get_tx_led_name(struct
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 
-	if (local->tx_led)
-		return local->tx_led_name;
-	return NULL;
+	return local->tx_led_name;
 }
 EXPORT_SYMBOL(__ieee80211_get_tx_led_name);
 
@@ -155,8 +165,115 @@ char *__ieee80211_get_rx_led_name(struct
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 
-	if (local->rx_led)
-		return local->rx_led_name;
-	return NULL;
+	return local->rx_led_name;
 }
 EXPORT_SYMBOL(__ieee80211_get_rx_led_name);
+
+static unsigned long tpt_trig_traffic(struct ieee80211_local *local,
+				      struct tpt_led_trigger *tpt_trig)
+{
+	unsigned long traffic, delta;
+
+	traffic = tpt_trig->tx_bytes + tpt_trig->rx_bytes;
+
+	delta = traffic - tpt_trig->prev_traffic;
+	tpt_trig->prev_traffic = traffic;
+	return DIV_ROUND_UP(delta, 1024 / 8);
+}
+
+static void tpt_trig_timer(unsigned long data)
+{
+	struct ieee80211_local *local = (void *)data;
+	struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger;
+	struct led_classdev *led_cdev;
+	unsigned long on, off, tpt;
+	int i;
+
+	if (!tpt_trig->running)
+		return;
+
+	mod_timer(&tpt_trig->timer, round_jiffies(jiffies + HZ));
+
+	tpt = tpt_trig_traffic(local, tpt_trig);
+
+	/* default to just solid on */
+	on = 1;
+	off = 0;
+
+	for (i = tpt_trig->blink_table_len - 1; i >= 0; i--) {
+		if (tpt_trig->blink_table[i].throughput < 0 ||
+		    tpt > tpt_trig->blink_table[i].throughput) {
+			off = tpt_trig->blink_table[i].blink_time / 2;
+			on = tpt_trig->blink_table[i].blink_time - off;
+			break;
+		}
+	}
+
+	read_lock(&tpt_trig->trig.leddev_list_lock);
+	list_for_each_entry(led_cdev, &tpt_trig->trig.led_cdevs, trig_list)
+		led_blink_set(led_cdev, &on, &off);
+	read_unlock(&tpt_trig->trig.leddev_list_lock);
+}
+
+extern char *__ieee80211_create_tpt_led_trigger(
+				struct ieee80211_hw *hw,
+				const struct ieee80211_tpt_blink *blink_table,
+				unsigned int blink_table_len)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+	struct tpt_led_trigger *tpt_trig;
+
+	if (WARN_ON(local->tpt_led_trigger))
+		return NULL;
+
+	tpt_trig = kzalloc(sizeof(struct tpt_led_trigger), GFP_KERNEL);
+	if (!tpt_trig)
+		return NULL;
+
+	snprintf(tpt_trig->name, sizeof(tpt_trig->name),
+		 "%stpt", wiphy_name(local->hw.wiphy));
+
+	tpt_trig->trig.name = tpt_trig->name;
+
+	tpt_trig->blink_table = blink_table;
+	tpt_trig->blink_table_len = blink_table_len;
+
+	setup_timer(&tpt_trig->timer, tpt_trig_timer, (unsigned long)local);
+
+	local->tpt_led_trigger = tpt_trig;
+
+	return tpt_trig->name;
+}
+EXPORT_SYMBOL(__ieee80211_create_tpt_led_trigger);
+
+void ieee80211_start_tpt_led_trig(struct ieee80211_local *local)
+{
+	struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger;
+
+	if (!tpt_trig)
+		return;
+
+	/* reset traffic */
+	tpt_trig_traffic(local, tpt_trig);
+	tpt_trig->running = true;
+
+	tpt_trig_timer((unsigned long)local);
+	mod_timer(&tpt_trig->timer, round_jiffies(jiffies + HZ));
+}
+
+void ieee80211_stop_tpt_led_trig(struct ieee80211_local *local)
+{
+	struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger;
+	struct led_classdev *led_cdev;
+
+	if (!tpt_trig)
+		return;
+
+	tpt_trig->running = false;
+	del_timer_sync(&tpt_trig->timer);
+
+	read_lock(&tpt_trig->trig.leddev_list_lock);
+	list_for_each_entry(led_cdev, &tpt_trig->trig.led_cdevs, trig_list)
+		led_brightness_set(led_cdev, LED_OFF);
+	read_unlock(&tpt_trig->trig.leddev_list_lock);
+}
--- a/net/mac80211/led.h
+++ b/net/mac80211/led.h
@@ -12,14 +12,17 @@
 #include "ieee80211_i.h"
 
 #ifdef CONFIG_MAC80211_LEDS
-extern void ieee80211_led_rx(struct ieee80211_local *local);
-extern void ieee80211_led_tx(struct ieee80211_local *local, int q);
-extern void ieee80211_led_assoc(struct ieee80211_local *local,
-				bool associated);
-extern void ieee80211_led_radio(struct ieee80211_local *local,
-				bool enabled);
-extern void ieee80211_led_init(struct ieee80211_local *local);
-extern void ieee80211_led_exit(struct ieee80211_local *local);
+void ieee80211_led_rx(struct ieee80211_local *local);
+void ieee80211_led_tx(struct ieee80211_local *local, int q);
+void ieee80211_led_assoc(struct ieee80211_local *local,
+			 bool associated);
+void ieee80211_led_radio(struct ieee80211_local *local,
+			 bool enabled);
+void ieee80211_led_names(struct ieee80211_local *local);
+void ieee80211_led_init(struct ieee80211_local *local);
+void ieee80211_led_exit(struct ieee80211_local *local);
+void ieee80211_start_tpt_led_trig(struct ieee80211_local *local);
+void ieee80211_stop_tpt_led_trig(struct ieee80211_local *local);
 #else
 static inline void ieee80211_led_rx(struct ieee80211_local *local)
 {
@@ -35,10 +38,37 @@ static inline void ieee80211_led_radio(s
 				       bool enabled)
 {
 }
+static inline void ieee80211_led_names(struct ieee80211_local *local)
+{
+}
 static inline void ieee80211_led_init(struct ieee80211_local *local)
 {
 }
 static inline void ieee80211_led_exit(struct ieee80211_local *local)
 {
 }
+static inline void ieee80211_start_tpt_led_trig(struct ieee80211_local *local)
+{
+}
+static inline void ieee80211_stop_tpt_led_trig(struct ieee80211_local *local)
+{
+}
+#endif
+
+static inline void
+ieee80211_tpt_led_trig_tx(struct ieee80211_local *local, __le16 fc, int bytes)
+{
+#ifdef CONFIG_MAC80211_LEDS
+	if (local->tpt_led_trigger && ieee80211_is_data(fc))
+		local->tpt_led_trigger->tx_bytes += bytes;
+#endif
+}
+
+static inline void
+ieee80211_tpt_led_trig_rx(struct ieee80211_local *local, __le16 fc, int bytes)
+{
+#ifdef CONFIG_MAC80211_LEDS
+	if (local->tpt_led_trigger && ieee80211_is_data(fc))
+		local->tpt_led_trigger->rx_bytes += bytes;
 #endif
+}
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -602,6 +602,8 @@ struct ieee80211_hw *ieee80211_alloc_hw(
 	/* init dummy netdev for use w/ NAPI */
 	init_dummy_netdev(&local->napi_dev);
 
+	ieee80211_led_names(local);
+
 	return local_to_hw(local);
 }
 EXPORT_SYMBOL(ieee80211_alloc_hw);
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1856,11 +1856,26 @@ struct ieee80211_hw *ieee80211_alloc_hw(
  */
 int ieee80211_register_hw(struct ieee80211_hw *hw);
 
+/**
+ * struct ieee80211_tpt_blink - throughput blink description
+ * @throughput: throughput in Kbit/sec
+ * @blink_time: blink time in milliseconds
+ *	(full cycle, ie. one off + one on period)
+ */
+struct ieee80211_tpt_blink {
+	int throughput;
+	int blink_time;
+};
+
 #ifdef CONFIG_MAC80211_LEDS
 extern char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw);
 extern char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw);
 extern char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw);
 extern char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw);
+extern char *__ieee80211_create_tpt_led_trigger(
+				struct ieee80211_hw *hw,
+				const struct ieee80211_tpt_blink *blink_table,
+				unsigned int blink_table_len);
 #endif
 /**
  * ieee80211_get_tx_led_name - get name of TX LED
@@ -1939,6 +1954,29 @@ static inline char *ieee80211_get_radio_
 }
 
 /**
+ * ieee80211_create_tpt_led_trigger - create throughput LED trigger
+ * @hw: the hardware to create the trigger for
+ * @blink_table: the blink table -- needs to be ordered by throughput
+ * @blink_table_len: size of the blink table
+ *
+ * This function returns %NULL (in case of error, or if no LED
+ * triggers are configured) or the name of the new trigger.
+ * This function must be called before ieee80211_register_hw().
+ */
+static inline char *
+ieee80211_create_tpt_led_trigger(struct ieee80211_hw *hw,
+				 const struct ieee80211_tpt_blink *blink_table,
+				 unsigned int blink_table_len)
+{
+#ifdef CONFIG_MAC80211_LEDS
+	return __ieee80211_create_tpt_led_trigger(hw, blink_table,
+						  blink_table_len);
+#else
+	return NULL;
+#endif
+}
+
+/**
  * ieee80211_unregister_hw - Unregister a hardware device
  *
  * This function instructs mac80211 to free allocated resources
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -23,6 +23,7 @@
 #include <linux/types.h>
 #include <linux/spinlock.h>
 #include <linux/etherdevice.h>
+#include <linux/leds.h>
 #include <net/ieee80211_radiotap.h>
 #include <net/cfg80211.h>
 #include <net/mac80211.h>
@@ -629,6 +630,19 @@ enum queue_stop_reason {
 	IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
 };
 
+#ifdef CONFIG_MAC80211_LEDS
+struct tpt_led_trigger {
+	struct led_trigger trig;
+	char name[32];
+	const struct ieee80211_tpt_blink *blink_table;
+	unsigned int blink_table_len;
+	struct timer_list timer;
+	bool running;
+	unsigned long prev_traffic;
+	unsigned long tx_bytes, rx_bytes;
+};
+#endif
+
 /**
  * mac80211 scan flags - currently active scan mode
  *
@@ -842,6 +856,7 @@ struct ieee80211_local {
 #ifdef CONFIG_MAC80211_LEDS
 	int tx_led_counter, rx_led_counter;
 	struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
+	struct tpt_led_trigger *tpt_led_trigger;
 	char tx_led_name[32], rx_led_name[32],
 	     assoc_led_name[32], radio_led_name[32];
 #endif
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -220,6 +220,7 @@ static int ieee80211_do_open(struct net_
 		/* we're brought up, everything changes */
 		hw_reconf_flags = ~0;
 		ieee80211_led_radio(local, true);
+		ieee80211_start_tpt_led_trig(local);
 	}
 
 	/*
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2888,6 +2888,9 @@ void ieee80211_rx(struct ieee80211_hw *h
 		return;
 	}
 
+	ieee80211_tpt_led_trig_rx(local,
+			((struct ieee80211_hdr *)skb->data)->frame_control,
+			skb->len);
 	__ieee80211_rx_handle_packet(hw, skb);
 
 	rcu_read_unlock();
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1293,6 +1293,7 @@ static int __ieee80211_tx(struct ieee802
 
 	while (skb) {
 		int q = skb_get_queue_mapping(skb);
+		__le16 fc;
 
 		spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
 		ret = IEEE80211_TX_OK;
@@ -1335,6 +1336,7 @@ static int __ieee80211_tx(struct ieee802
 		else
 			info->control.sta = NULL;
 
+		fc = ((struct ieee80211_hdr *)skb->data)->frame_control;
 		ret = drv_tx(local, skb);
 		if (WARN_ON(ret != NETDEV_TX_OK && skb->len != len)) {
 			dev_kfree_skb(skb);
@@ -1345,6 +1347,7 @@ static int __ieee80211_tx(struct ieee802
 			return IEEE80211_TX_AGAIN;
 		}
 
+		ieee80211_tpt_led_trig_tx(local, fc, len);
 		*skbp = skb = next;
 		ieee80211_led_tx(local, 1);
 		fragm = true;
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1141,6 +1141,7 @@ u32 ieee80211_sta_get_rates(struct ieee8
 void ieee80211_stop_device(struct ieee80211_local *local)
 {
 	ieee80211_led_radio(local, false);
+	ieee80211_stop_tpt_led_trig(local);
 
 	cancel_work_sync(&local->reconfig_filter);
 
@@ -1175,6 +1176,7 @@ int ieee80211_reconfig(struct ieee80211_
 		}
 
 		ieee80211_led_radio(local, true);
+		ieee80211_start_tpt_led_trig(local);
 	}
 
 	/* add interfaces */