mac80211: add pending patches for throughput based led blinking and replace the broken ath9k blinking code with it

SVN-Revision: 24159

1 files changed, 373 insertions, 0 deletions

diff --git a/package/mac80211/patches/562-throughput_trigger.patch b/package/mac80211/patches/562-throughput_trigger.patch
new file mode 100644
index 0000000000..8110547945
--- /dev/null
+++ b/package/mac80211/patches/562-throughput_trigger.patch
@@ -0,0 +1,373 @@
+Subject: mac80211: add throughput based LED blink trigger
+From: Johannes Berg <johannes.berg@intel.com>
+
+iwlwifi and other drivers like to blink their LED
+based on throughput. Implement this generically in
+mac80211, based on a throughput table the driver
+specifies. That way, drivers can set the blink
+frequencies depending on their desired behaviour
+and max throughput.
+
+All the drivers need to do is provide an LED class
+device, best with blink hardware offload.
+
+Signed-off-by: Johannes Berg <johannes.berg@intel.com>
+---
+v2: turn off LED when turning off radio
+
+ include/net/mac80211.h     |   42 +++++++++++++++
+ net/mac80211/ieee80211_i.h |   14 +++++
+ net/mac80211/iface.c       |    1 
+ net/mac80211/led.c         |  120 +++++++++++++++++++++++++++++++++++++++++++++
+ net/mac80211/led.h         |   44 +++++++++++++---
+ net/mac80211/rx.c          |    1 
+ net/mac80211/tx.c          |    1 
+ net/mac80211/util.c        |    2 
+ 8 files changed, 216 insertions(+), 9 deletions(-)
+
+--- a/include/net/mac80211.h
++++ b/include/net/mac80211.h
+@@ -1849,11 +1849,27 @@ 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,
++				unsigned long update_timeout,
++				const struct ieee80211_tpt_blink *blink_table,
++				unsigned int blink_table_len);
+ #endif
+ /**
+  * ieee80211_get_tx_led_name - get name of TX LED
+@@ -1932,6 +1948,32 @@ static inline char *ieee80211_get_radio_
+ }
+ 
+ /**
++ * ieee80211_create_tpt_led_trigger - create throughput LED trigger
++ * @hw: the hardware to create the trigger for
++ * @update_timeout: the update timeout (in jiffies)
++ * @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,
++				 unsigned long update_timeout,
++				 const struct ieee80211_tpt_blink *blink_table,
++				 unsigned int blink_table_len)
++{
++#ifdef CONFIG_MAC80211_LEDS
++	return __ieee80211_create_tpt_led_trigger(hw, update_timeout,
++						  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>
+@@ -636,6 +637,18 @@ enum queue_stop_reason {
+ 	IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
+ };
+ 
++struct tpt_led_trigger {
++	struct led_trigger trig;
++	char name[32];
++	const struct ieee80211_tpt_blink *blink_table;
++	unsigned int blink_table_len;
++	unsigned long update_timeout;
++	struct timer_list timer;
++	bool running;
++	unsigned long prev_traffic;
++	unsigned long tx_bytes, rx_bytes;
++};
++
+ /**
+  * mac80211 scan flags - currently active scan mode
+  *
+@@ -849,6 +862,7 @@ 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/led.c
++++ b/net/mac80211/led.c
+@@ -103,6 +103,13 @@ void ieee80211_led_init(struct ieee80211
+ 			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)
+@@ -123,6 +130,11 @@ 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)
+@@ -156,3 +168,111 @@ char *__ieee80211_get_rx_led_name(struct
+ 	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 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, jiffies + tpt_trig->update_timeout);
++
++	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 >= 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,
++				unsigned long update_timeout,
++				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->update_timeout = update_timeout;
++	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;
++	mod_timer(&tpt_trig->timer, jiffies + tpt_trig->update_timeout);
++}
++
++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
+@@ -12,15 +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_names(struct ieee80211_local *local);
+-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)
+ {
+@@ -45,4 +47,28 @@ static inline void ieee80211_led_init(st
+ 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, int bytes)
++{
++#ifdef CONFIG_MAC80211_LEDS
++	if (local->tpt_led_trigger)
++		local->tpt_led_trigger->tx_bytes += bytes;
+ #endif
++}
++
++static inline void
++ieee80211_tpt_led_trig_rx(struct ieee80211_local *local, int bytes)
++{
++#ifdef CONFIG_MAC80211_LEDS
++	if (local->tpt_led_trigger)
++		local->tpt_led_trigger->rx_bytes += bytes;
++#endif
++}
+--- a/net/mac80211/iface.c
++++ b/net/mac80211/iface.c
+@@ -225,6 +225,7 @@ 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/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 */
+--- a/net/mac80211/rx.c
++++ b/net/mac80211/rx.c
+@@ -2873,6 +2873,7 @@ void ieee80211_rx(struct ieee80211_hw *h
+ 		return;
+ 	}
+ 
++	ieee80211_tpt_led_trig_rx(local, skb->len);
+ 	__ieee80211_rx_handle_packet(hw, skb);
+ 
+ 	rcu_read_unlock();
+--- a/net/mac80211/tx.c
++++ b/net/mac80211/tx.c
+@@ -1344,6 +1344,7 @@ static int __ieee80211_tx(struct ieee802
+ 			return IEEE80211_TX_AGAIN;
+ 		}
+ 
++		ieee80211_tpt_led_trig_tx(local, len);
+ 		*skbp = skb = next;
+ 		ieee80211_led_tx(local, 1);
+ 		fragm = true;